Blog about buying plastic mold, plastic injection molding parts from China Plastic Injection mold and molding companies, advantages and disadvantages buying plastic molds and plastic molding parts from China.

PBT Injection molding

Polybutylene terephthalate (PBT) has advantageous combination properties such as a convenient source of raw materials, and mature polymerization process has gotten easier, low cost and easily forming and processing. Nylon, polycarbonate (PC), polyoxymethylene and modified polyphenylene oxide are five major engineering plastics.

PBT Injection Molding (Moulding):

PBT is a kind of crystalline polymer with a sharp melting point (225-235 Celsius degree). Crystallinity can reach 40%. When the temperature rises above the melting point, the liquidity of melt will become obvious. However, when changing from the molten state to the gruel state, it not only has the fast rate of cooling rate but has a fast crystalline speed.

In the state of melting for PBT, because of its low viscosity, perfect liquidity (inferior to the nylon) and better mold shrinkage, it needs to prevent the phenomena of edge flowing and flashing of products.

Influenced by factors of crystallinity, technology, mould, PBT has anisotropy to makes products warping and distorted during the molding process. Therefore, it should pay attention to proper process conditions and mold design.

PBT contains esters gene and it will hydrolyze under the high temperature with the presence of moisture. Therefore, before starting the processing, it has to conduct the drying process.

For PBTinjection molding parts, most gates are applicable to melt’s rapid mold filling, which just requests the bigger caliber to prevent the contraction of the melt to reduce the loss of pressing force.

In the actual operation, the temperature of PBT ranges from 240 to 260 Celsius degree.
Owning to PBT’s fast cooling speed, injection speed should be slightly faster in order to prevent short shot of the products, obvious welding, and poor surface fineness caused by premature condensation during the filling process. However, it needs to prevent inadequate air exhausting and the flashing of products.

The revolving speed of screw should be controlled to some extent to avoid friction heat impacting on the resin and screw speed generally doesn’t exceed 80r/min, mostly ranging from 25 to 60r/min. In order not to obstruct plasticizing of materials and make sure the air among particles of fabric materials can be discharged in time, during PBT’ shaping, the screw packing should be controlled at 10-15% of the injection pressure.

To get products with better performance and good fineness as well as the smaller deformation in the molding, PBT’s appropriate temperature is 70 -80 Celsius degree.

In view of PBT’s low viscosity, good fluidity, fast cooling and solidifying in the molding, most products don’t need a long molding cycle.

Sincere Tech offers PBT injection moulding & custom molds, if you are interested in our service, contact us to get price by sending us an email.

2019年8月16日/by admin

ABS injection molding, Injection molds, Nylon injection molding, PA injection molding, PA66 injection molding

PA (Nylon) Injection Molding

Information about PA6/PA66 (Nylon) Injection Molding

Basically, there are PA6 AND PA66(Nylon 6 or Nylon 66), Nylon has tenacious and wearable, self-lubricious and smooth characteristics with non-toxic and antibiosis and high water absorbability. In addition, its tensile strength and stiffness will be sharply decreased with the moisture-absorbing. Then, the size of finished pieces changes greatly. If in the high-temperature environment for a long time, it will be resolved.

It will not soften gradually with increasing high temperature until closing to the extent of melting-point. Once reaching the proper temperature, it will flow. It is soluble in many chemicals. However, gas, lubricating oil, developer, detergent and grease have no effect on nylon.

Advantages Nylon Injection Molding :

It has high mechanical strength, good tenacity and high press resistance and strength of extension. Its strength of extension is close to yielding strength, which is twice stronger than ABS injection molding parts.

Nylon Injection molding parts have excellent fatigue durability with the smooth surface and minor friction coefficient and good wear resistance. It also has corrosion resistance and remarkable resistance to alkali (acid) and most of the salt solution, non-toxic, presenting inertia to biological erosion and good anti-mildew ability, heat resistance and excellent electrical features.

Its product has a lightweight and is easy to dye and molding.

Disadvantages of PA injection molding:

It is easy to absorb water and has poor light resistance. It requires more strict plastic molding technology. It can absorb water and becomes swelling in alcohol but has no resistance to strong acid and oxidizer.

Therefore, it cannot be used as acid-resisting material.

Nylon Injection Molding process:

We should exactly control the injection molding process to prevent problems like flashing. Meanwhile, as the faster speed of condensation quick releasing for melt, we should keep off the insufficient production caused by material blocking in orifice runner and gate (temperature and pressure increase liquidity firstly).

As the poor thermal stability, the temperature should not be too high so as not to cause yellowing of material.

The proper injection pressure can be judged by the appearance of the products. If it has higher injection pressure, products will appear the problems such as flashing; the too low temperature will bring about defects like a ripple, flow mark, weld line or insufficient producing. Therefore, the higher holding pressure should be avoided in order to prevent increasing the internal stress for products generally.

It is advisable that injection should be done with speed so as to avoid problems such as ripple or insufficient mold filling caused by the rapid cooling rate.

PA Nylon injection molding Technique

1, Preparation of Original Materials
PA (polyamides) absorbs humidity easily, which has an effect on the course of working, like decreasing viscosity of the melt and appearing bubbles and crazing on the surface, etc. And force property of product will also decrease obviously. Therefore, the drying process must be done before shaping up. Besides, PA is easily oxidized and color changed as well as decomposition under hot temperature, so it will be better with vacuum drying. But if there is no vacuum drying condition, atmospheric hot air drying can also be adopted.

The temperature of vacuum drying is 85-95 Celsius degrees and the lasting time is 4-6H; while the temperature of hot air drying is 90-100 Celsius degrees and the lasting time is 8-10H. PA materials after being dried are not fit for locating in the air (not more than 1-3H).

2, Melting Temperature
The choice of the machine barrel is mainly based on the melting point of PA Material. At the same time, it is also related to the type of injection molding machine, type of product and size. Generally, under 220-320 Celsius degrees, PA6: 220-300 Celsius degrees; PA66: 260-320 Celsius degrees, as the processing temperature of PA is narrow, so the temperature of machine barrel must be controlled strictly, in order to avoid decomposition of melt thus to make the product go bad. The setting of the machine barrel has a large effect on plasticizing and speed of melt.

The temperature of the middle section of the machine barrel should be higher than the melting point of 20–40 Celsius degrees and lower than the decomposition of 20-30 Celsius degrees. The temperature of the front section is lower than the middle section of 5-10 Celsius degrees. The temperature of back-end (loading section) is lower than the middle section of 20-50 Celsius degrees. Cooling of the charging hole must be effective. If the temperature of the middle section is too low and the screw changes its speed too fast, then jamming phenomenon will appear. If the temperature of the posterior section is too high, then the delivering capacity will be affected. A lower speed of screw will affect production efficiency.

3, Injection Pressure
Injection pressure has a small effect on the force of PA. Choosing of injection pressure mainly depends on the type of injection molding machine, machine barrel temperature, type and size of the product, and mold structure. And there are also some factors like injection speed, injection time and injection time, etc.

4, Injection Speed
Choosing of injection speed is related to the thickness of the product, the temperature of the melt, the size of the gate, etc. The injection speed cannot be so fast. Otherwise, the excess temperature will be caused due to over cutting thus to create decomposition, causing color changing of product and decrease of force property. Too fast injection speed will also create defects like bubble and scorching, etc.

5, Revolving Speed of Screw
Intermediate speed should be adopted. The too-fast speed may cause decomposition of plastic due to excessive cutting, causing color changing and decrease of property and too slow of revolving speed, which may affect the quality of melt and production efficiency due to a long period of melting.

6, Back-pressure
On the premise to guarantee the quality of the product that the lower of the back-pressure is the better. High back-pressure may decompose due to the excessive cutting of melting.

7, Mold temperature for PA injection molding

The high temperature of mold improves hardness, density, tensile strength and modulus of elasticity of the product. Mold temperature is related to the property of the product. As to those thin products which require elongation and good transparency, it will be better with lower mold temperature; while as to those thick molds which require high strength, good abrasion resistance and transformation less, and then higher temperature of mold temperature is better. The specific is as follows.

The thickness of product temperature of mold: Less than 3mm, mold temperature use 50 -70 Celsius degrees, 3-6mm, mold temperature use 70-90 Celsius degrees, 6-10mm, mold temperature use 80-100 Celsius degrees, and wall thickness is more than 10mm, 100 Celsius degrees Mold temperature has a big effect on contractibility rate of product. The higher of the mold temperature, the bigger of the contractibility, otherwise, the smaller of the contractibility rate.

8, Molding Cycle
It mainly depends on the thickness of the product. As to thin wall product, the injection time, pressure maintaining time and cooling time can all be shorter; while as for thick wall product, in order to avoid the appearance like shrinkage transformation, sink mark and bubbles, etc., then injection time and pressure maintaining time should be lengthened and high mold temperature should be adopted. The cooling time should be longer.

9, Post-processing of Product
Crystallization of the process of molecular orientation and cooling process while in the process of cooling creates some internal stress in the product. The size and shape of the product will change while in the future storage and using process. Therefore, annealing and humidifying processing are required.

10, Annealing
It adopts a product that is 80 Celsius degrees higher of the temperature and accurate precision. The product is taken out after being demoulded, putting in oil or paraffin for annealing. The temperature of annealing is higher than the usage temperature of 10-20 Celsius degrees and time is 10-60 minutes. (Depending on the thickness of product)

11, Humidifying
While in the process of shaping up, a product that is used in humanity or aqueous solution must be put into boiling water or potassium acetate solution for 1-2 days after taken out.

12, Residence Time
While in the process of manufacturing, if the temperature of glue is above 300 Celsius degrees, then the long residence time of melting in the machine barrel must be avoided (20 minutes), otherwise decomposition will be caused due to overheating, causing the color change of product or brittleness. If a temporary stoppage for more than 20 minutes is required, then the temperature of the machine barrel can be lowered to 200 Celsius degrees. When in a long time of residence, polymer with higher viscosity must be used to clean the machine barrel. For example, HDPE or PP can be used for cleaning.

Contact us to get a price for your PA injection molding (PA6, PA66, PA12) or any other custom injection molding projects.

2019年8月13日/by admin

China mold, injection molding, Injection Molding China, Injection molds, mold gate, plastic mold, plastic molding

Plastic Moulding

What is Plastic Moulding

Plastic moulding is the plastic work through the Injection moulding machine, The melted plastic will automatically molten after erupting out in all of the plastic moulding methods, injection plastic moulding has been the most widely used. The method comprises the following steps: getting the thermoplastic plastic or the thermosetting plastic imported into the heating cylinder of the injection moulding machine, and when it is completely melted, it will produce heat and frictional heat by the pressure of the plunger or the screw, and is injected into the mould cavity of the closed mould, after curing, and then open the mould and take out the finished product.

Plastic moulding is the principal method of forming thermoplastic materials. Modifications of the plastic injection molding process are sometimes used for thermosetting plastics.

The problem with plastic moulding of thermosetting materials is that, under heat, these plastics will first soften, then harden to an infusible state. Thus it is essential that no softened thermosetting material in the heating chamber be allowed to remain there long enough to set. Jet molding, offset molding and molding using a screw-type machine overcome this problem by liquefying the thermosetting plastic material just as it goes through the injection nozzle into the plastic mold, but not before.

Type of plastic molding

There are many type of plastic moulding process, below we will briefly explain each type of plastic mouldings.

Blow Molding

Blow molding is a method of forming hollow articles out of thermoplastic materials.

Blow molding is a process of forming a molten tube of thermoplastic material, then with the use of compressed air, blowing up the tube to conform to the interior of a chilled blow mold. The most common methods are extrusion, injection, and injection-stretch blow molding.

The continuous-extrusion method uses a continuously running extruder with a tuned die head that forms the molten plastic tube. The tube is then pinched between two mold halves. A blow pin or needle is inserted into the tube and compressed air is used to blow up the part to conform to the chilled mold interior. Accumulator-extrusion is similar, however, the molten plastic material is accumulated in a chamber prior to being forced through a die to form the tube.

Injection molding

Injection blow molding is a process of injection molding a preform (similar to a test tube), then taking the tempered preform to a blow mold to be filled with compressed air to conform to the interior of the blow mold. Injection-stretch blow molding can be a single-stage process similar to standard injection blow molding, by adding the element of stretch prior to blow forming. Also, a two-step process is possible, where a preform is made in an injection molding machine, then taken to a reheat-stretch blow molding machine for preform reheating and final blow forming in a blow mold.

Thermoforming molding

plastic molding company, injection molding machines from 60 Ton to 2000 Ton

Thermoforming of plastic sheet has developed rapidly in recent years. This process consists of heating thermoplastic sheet to a formable plastic state and then applying air and/or mechanical assists to shape it to the contours of a mold.

Air pressure may range from almost zero to several hundred psi. Up to approximately 14 psi (atmospheric pressure), the pressure is obtained by evacuating the space between the sheet and the mold in order to utilize this atmospheric pressure. This range, known as vacuum forming, will give satisfactory reproduction of the mold configuration in the majority of forming applications.

Themoset Transfer Molding

Themoset Transfer molding is most generally used for thermosetting plastics. This method is like compression molding in that the plastic is cured into an infusible state in a mold under heat and pressure. It differs from compression molding in that the plastic is heated to a point of plasticity before it reaches the mold and is forced into a closed mold by means of a hydraulically operated plunger.

Themoset Transfer molding was developed to facilitate the molding of intricate products with small deep holes or numerous metal inserts. The dry mold compound used in compression molding sometimes disturbs the position of the metal inserts and the pins which form the holes. The liquefied plastic material in transfer molding flows around these metal parts without causing them to shift position.

Reaction Injection Molding

Reaction injection molding (RIM) is a relatively new processing technique that has rapidly taken its place alongside more traditional methods. Unlike liquid casting, the two liquid components, polyols and isocyanates, are mixed in a chamber at relatively low temperatures (75° – 140° F) before being injected into a closed mold. An exothermic reaction occurs, and consequently RIM requires far less energy usage than any other injection molding system.

The three major types of polyurethane RIM systems are rigid structural foam, low-modulus elastomers, and high-modulus elastomers.

Reinforced RIM (R-RIM) consists of the addition of such materials as chopped or milled glass fiber to the polyurethane to enhance stiffness and to increase modulus, thus expanding the range of applications.

Compression Molding

Compression molding is the most common method of forming thermosetting materials. It is not generally used for thermoplastics.

Compression molding is simply the squeezing of a material into a desired shape by application of heat and pressure to the material in a mold.

Plastic molding powder, mixed with such materials or fillers as woodflour and cellulose to strengthen or give other added qualities to the finished product, is put directly into the open mold cavity. The mold is then closed, pressing down on the plastic and causing it to flow throughout the mold. It is while the heated mold is closed that the thermosetting material undergoes a chemical change which permanently hardens it into the shape of the mold. The three compression molding factors — pressure, temperature and time the mold is closed — vary with the design of the finished article and the material being molded.

Extrusion Molding

Extrusion molding is the method employed to form thermoplastic materials into continuous sheeting, film, tubes, rods, profile shapes, and filaments, and to coat wire, cable and cord.

In extrusion, dry plastic material is first loaded into a hopper, then fed into a long heating chamber through which it is moved by the action of a continuously revolving screw. At the end of the heating chamber the molten plastic is forced out through a small opening or die with the shape desired in the finished product. As the plastic extrusion comes from the die, it is fed onto a conveyor belt where it is cooled, most frequently by blowers or by immersion in water.

In the case of wire and cable coating, the thermoplastic is extruded around a continuing length of wire or cable which, like the plastic, passes through the extruder die. The coated wire is wound on drums after cooling.

In the production of wide film or sheeting, the plastic is extruded in the form of a tube. This tube may be split as it comes from the die and then stretched and thinned to the dimensions desired in the finished film.

In a different process, the extruded tubing is inflated as it comes from the die, the degree of inflation of the tubing regulating the thickness of the final film.

Plastic Moulding Knowledge Guidance

1 The basic knowledge of plastic molding.
1.1 The characteristics and composition of plastic injection moulding.

Plastic Injection moulding is to fill the molten moulding material in a closed mould with high pressure. The pressure that the plastic molding cavity needs to be subjected to about 400 KGF / CM2, approximately 400 atmospheres. With such a high pressure to make a product is its characteristic which is not the only an advantage but also disadvantages. In other words, the mold always has to be made stable, therefore its’ price is always high. So must be mass-produced in order to buckle with high-priced mould costs. For example, the production of each batch must be more than 10000PCS to be reasonable. In other words, plastic molding work surely has to be a mass-production.

A few steps of the plastic molding process :
1.1.1 Closing
Close the security and then start moulding
1.1.2 Clamping mold
Moving forward the moving board in order to get the mould closed. When the mould is closed which means is also locked.

1.1.3 Injecting (including holding press)
The screw is quickly pushing forward, injecting the molten formed plastic material into the mould cavity to full fill it. Keeping the press at the same time after full filling it, this action is particularly named “holding press.” The pressing that the mold has to bear when it just gets full filled, generally called ‘Injection Press’ or ‘one press’.

1.1.4 Cooling off (and the next step of the plasticization project)

The process of waiting for the material getting cool formed in the mould cavity is called “cooling off”, At this time the injection device is also ready for the next step, this process is called “plasticization process. The moulded material is placed in the hopper, inflow into the heated tube to heat, it is based on the rotation of the screw turning the raw material into the molten status.

1.1.5 Opening the mould

Move the moving board to the backward and the mould will be opened.

1.1.6 Opening the security door

Opening the security door, then the machine will be in the standby status.

1.1.7 Picking up

Taking out the product, checking carefully if there is anything left in the mould cavity, and this whole forming operation is called moulding cycle time. The finished product is shaped by the shape of the mould. The mold is composed of the left mould and the right mould, These two sides of moulds are left with voids, and the material would flow into the voids and get compressed to finish the product. There are three main lines of the path of the molding material before it flows into the left side and right side, sprue, runner, gate, and so on.

1.2 Injection molding machine

Injection moulding machine is distinguished from two large projects, they are divided into two, clamping device and injection device.

1.2.2 clamping device

Closing the mould, the molding material would be cooled off and solidified in the mould cavity. Opening the mould cavity and take out the finished product is the action of the clamping device

1.2.3 Injection Device

Injecting the plastic material into the mould cavity called ‘Injection device’

The following describes the ability of the injection moulding machine, there are three provisions to distinguish the ability of it.

A. Clamping force

When the injection is made, the mould won’t be opened by the maximum clamping force, expressed as the number of TON.

B. Injection volume

The weight of a shot is generally expressed in terms of grams.

C. Plasticizing capacity

A certain amount of time able to melt the amount of resin, this is generally expressed in terms of grams. The most important part is the clamping force, the area of the moulded article is referring the mould perpendicular to the shadow of the opening and closing direction (basically the moud’s area). The average pressure within the mold added to the projection area is called the clamping force. If the mold “projection area × average pressure” is greater than the “clamping force” then the left and the right side moulds will be pushed out.

Clamping force = projection area × average pressure within the mold In general, the mold can withstand the pressure of 400KGF / Cm2, so base on this figure to calculate the clamping force, but the clamping force often based on the shape of forming materials and the shape of the product’s vary, the difference between the larger parameters such as PE, PP, PS, ABS materials, these raw materials are used to make the shallow box, the parameter is 300KGF / CM2.

If the depth of the box is deeper then the parameter is 400 KGF / CM2, If it is the small but high precision products. The projection area is about 10CM2 or less, its parameters are 600KGF / CM2. The smaller parameters such as PVC, PC, POM, AS materials, these materials are also used to make a shallow box, the parameters of 400KGF / CM2, if it is a deep box of its parameters is 500KGF / CM2, if it is a small and high precision products, projection area of about 10CM2 below, its parameter is 800KGF / CM2.

To working with Plastic Moulding is not easy, if you have a project that needs plastic molding service you need to find a professional plastic molding company to support you, to reduce your plastic mold and Injection moulding cost, find a Chinese molding company to support you will be one of the best options, plastic mould and moulding parts from China mold company has inexpensive price and short lead time, this is no reason that you do not choose your plastic molding supplier from China, on the world, over 80% or overseas companies that buy products from China, China is the biggest manufacturer country on the world, this is no doubt about this,

We are A Plastic Molding Parts Manufacturing Company

Finding the right source for all your injection molded thermoplastic parts is as easy as selecting DONGGUAN SINCERE TECH CO.LTD (SINCER ETECH). If you need quality injected-molded parts from an ISO 9001:2000 Certified supplier, and you need them on time, ACM is the answer.

Plastic Mold & Plastic Molding Parts Service: Your One-Stop Solution

Sincere Tech is a top 10 injection mold companies in China, offer injection mould, plastic moulding service to the world, 90% of our mold and parts are export to American, Europe, and the world, SINCERE TECH is a “one-stop, one-responsibility” company. our skilled, quality-minded thermoplastics professionals are committed to superior service, providing solutions to customers’ needs from concept to finished product. At our modern plastic molding facility you will be guaranteed:

Top quality products
The latest in technological equipment
Cost-effective manufacturing processes
Quality assurance procedures

We are capable of producing a wide variety of plastic parts and components, for industries of all types, including:

A / C Vents
Actuators
Bezels
Blood Testers
Boat Parts
Bobbins
Bottle Ties
Boxes
Brackets
Buckles
Cases
Clips
Component Boxes
Computer Peripherals
Connectors
Cosmetic Packaging
DVD / VCR Faceplates

Faucet Extrusions
Flower Pot Bases
Fuse Blocks
Gear Shift
Knobs
Gears
Housings
Junction Boxes
Key Fobs
Knobs
Lenses
Light Pipes
Motor Housings
Name Plates
Phone Parts
Push Buttons

Radiator Tops
Seat Belt Parts
Shields
Spacers
Spools
Switches
Tail Lamp Sockets
Toys
Trim Plates
Typewriter Parts
Vents
Vials
Wedges
Window Lift Parts
Wire Shields

SINCERE TECH’s Capabilities

SINCERE TECH’s molding machines range from 60-ton to 2000-ton. We are equipped to mold products from many varieties and grades of resin, each with different properties, including:

Thermoplastic commodity resins
Engineering grade resins (filled and unfilled)
Elastomeric materials

Read more details about our Production Facility and Equipment.

Additionally, our facilities can provide a number of secondary operations, such as:

Assembly
Pad Printing
Painting
Drilling
Ultrasonic Welding
Milling
Ultrasonic Insertion

Read more details about our Production Facility and Equipment.

You are welcome to send us your new project, we will quote you with 24 hours, we will offer you the best solution for your new project to save you price, not only the injection molding process, but rubber molding, metal parts etc.

2019年7月28日/by admin

Injection molds, Proto Mold

Getting the Perfect Prototype Part & Proto Mold

What is Proto Mold

Proto Mold is fast prototype mold for some project which you are not sure if successful or not, to save your cost before making production mold, and making this fast proto mold to make a small quality of plastic mold for testing and market. These proto molds are typically made from materials such as aluminum or steel to make some small volume of parts. normally will be a single mold or family proto mold.

Proto mold, is one of the best way to save cost for your new project, if you are a manufacturing company that is developing a new product that requires injection molding, then obviously looking for an injection molded plastics shop is your first step in getting the part created. However, if you are hung up on the fact that you aren’t sure exactly what you want, don’t let it stop you from contacting an injection molding company.

The process in and of itself always involves custom molds, and most companies, therefore, have the capability to help create prototyping parts or proto mold that will suit your needs perfectly. Plastic injection mould is machines created to follow through with the prototype design with perfection, and the process is very reliable. Mass production is what these machines are built for, and those that run them have years of experience behind their belts.

Plastic Injection mould is all designed in fairly similar fashions, with a hopper to melt the chosen plastic or rubber materials and then the injection section to transfer the molten material into the mold. The time needed for each mold to set is not long, and each plastic injection mold is then able to remove the dried and sturdy part from its mold before moving it along to another section of production.

Although the above description is very general, and the details of how each plastic injection moulder works vary depending on its size and style, most of the above still apply. The process is so dependable and accurate it doesn’t require much fine-tuning. So once you have worked with a plastic injection molded company to achieve your dream prototype parts or verified the project by proto mold, making the plastic injection mold to massive produce the part is a walk in the park. Most of these places also offer short runs for smaller batches of the product, in case your company wants to test the success of the new part you have created.

Difference between Proto mold and production mold

The main difference between prot mold and production injection molding is the production volume and the lead time.

Proto mold or rapid injection mold is a fast and cost-effective way to produce small to medium-sized batches of products. It uses advanced software and machinery to create molds quickly and efficiently, which reduces the lead time and turnaround time. Proto Mold can produce products in a matter of days or weeks, making it suitable for prototyping, low-volume production, and quick-turnaround projects.

Production mold, which means for final production uses, specially for producing large volume of parts. the mold and molding process are the same, make mold, trial the mold, running the same injection molding procees. Production mold is best suited for larger volume of parts at a lower unite cost. It is ideal for long-term production projects that require consistent quality and high-volume output.

Another difference between proto mold and production mold is the cost. since the proto mold is for small volume or prototype parts, so normally will use the cheap way to make the proto mold, even the mold failled that still will lost too much money. Production mold, on the other hand, this is for high volume of prodution, and normally will use the high quality and more precision machining to the mold, the lead time and mold manufacturing cost will be more higher.

In summary, the main differences between proto mold and production mold are the production volume, lead time, and cost. proto mold is faster, cheaper, and best suited for small or prototype mold runs, production mold is slower, high mold cost, and best suited for larger production runs.

The technique of rapid tooling injection molding

The technique of rapid tooling injection molding makes testing much more beneficial. It is because everyone knows that new products must pass extensive design, prototype evaluation, and functional testing before they are considered ready to distribute to markets. In this case, rapid injection molding becomes one of the best techniques for prototypes that need to undergo design changes during the developmental stage.

By rapid injection molding technique, you can make as many prototypes as possible needed to get the best products, or you can name it pilot production. It is perfect for market testing until the production plastic mold is ready, or about a three or four month wait. When production volume does not justify to make prduction plastic mold, this molding technique can supply production parts.

If you never knew the process of rapid injection molding, the following can help. The process uses aluminum molds milled on 3-axis CNCs instead of the expensive, hardened tool steel molds used with traditional methods. Molds comprise an A-side, sometimes called the cavity side and a B-side, sometimes called the core side. The A-side mounts to the fixed portion of the injection molding press.

Then, in rapid tooling injection molding, resin is injected through this section of the mold into the part cavity by way of the sprue, the path the resin takes until it reaches the runners. These guide the resin to the gate, the location where the plastic enters the part cavity. The B-side, on the other hand, mounts to the moving side of the press and includes the steel ejector pins. Before designing the mold, parts are oriented so they will remain on the B-Side when the mold opens.

The process of rapid injection molding also requires technology, such as 3D CAD with high speed CNC machining equipment to quickly manufacture injection molds. This way is efficient, as it enables the low cost creation of injection-molded prototypes and makes low volume runs of production parts affordable. It allows manufacturers to get prototypes in just few days. It is also a way company’s image since it lets you to have more preparation before launching products.

Tips on how to get Getting the Perfect Prototype Part & Proto Mold?

Below are some steps to help you how to get perfect prototype parts and proto mold, how this would help you to solve your requirement.

Choose a reliable prototyping and molding company: Look for a proto mold company that has a good reputation in the industry and has experience in producing the type of part or mold you need.
Determine the materials and specifications needed: Specify the type of material you want to use, and the size and shape of the prototype part or mold. This information will help the manufacturer produce a more accurate and precise prototype.
Design the prototype using CAD software: Use computer-aided design (CAD) software to design a 3D prototype model. This will help the manufacturer get a better idea of what you want and ensure that the dimensions are correct.
Test the prototype: Once the prototype is produced, test it and make any necessary adjustments or changes. This will ensure that the final part or mold meets your specifications and requirements.
Repeat the process if necessary: Sometimes, multiple prototypes are necessary to get the perfect part or mold. If the first prototype doesn’t meet your requirements, discuss the changes that need to be made with the manufacturer and start the process again.

By following these steps and working with a reliable manufacturer, you will be able to get the perfect prototype proto mold for your specific needs.

2019年7月26日/by admin

China mold, Custom Plastic injection moulding service, custom plastic mold, Injection Mold China, injection molding, Injection molds, plastic injection mold

Plastic Product Design Service

Plastic Product Design Service from plasticmold.net

Plastic product design service according to your sketch or samples, Change Draft Directions, Initial Design Consultation, Improve Efficiency, Change Draft Directions, Eliminate Undercut, Eliminate Sink Marks

SINCERE TECH can produce a plastic product design from your concept, sketch, samples or modify your product designs for required changes on most plastic parts.

SINCERE TECH, one of the most trusted top 10 plastic injection molding companies in China that offers mold design, injection molding service, injection mold making, and engineering, will consult on the initial design, or design enhancements to help improve efficiency in the manufacturing process, including:

Changing draft directions
Design concessions for radii and step-throughs
Undercut elimination
Coring to eliminate sink marks

All the above design improvement has no cost

Perfect Plastic Product Design will make High-Quality Molds, high-efficiency molding production, cost saving on both molds and molded parts

Craftsmen at SINCERE TECH are capable of constructing intricate and efficient molds quickly, whether they be simple single-cavity mold or complex multiple cavity mold. All SINCERE TECH molds are designed to use high-quality mold bases and mold steels; and are engineered for maximum process windows, ease of repair and long life.

We have a wide range of manual, automatic and computerized mold making equipment to accomplish our goal, including:

Mills
Grinders
EDM Machines
Drills
Lathes
Saws
CNC Machining

CNC Programming
Design equipment and software
Inspection and Measurement
Polishing Tools

Our plastic mold makers are fully qualified and skilled at using modern production techniques. Using our computerized CNC (Computer Numeric Coordinates) System (CAD/CAM), SINCERE TECH team are able to produce new custom molds with cost-saving speed and accuracy or troubleshoot your existing molds.

Whether the job calls for conventional, hot, or insulated runner systems, SINCERE TECH toolmakers have the experience to design and build the mold correctly.

Advanced Plastic mold making technology allows us to design and produce molds for a wide variety of plastic part applications,

If you have your plastic prodcut design ready and look for plastic mold making service, you are welcome to send us your design, we will offer you the best price. If you only have samples or sketch, you are welcome to contact us as well, we will make plastic product design, mold making, injection molded parts for you by the best solutions,

We never share your data with any other third parties, we can sign NDA document to protect your project,

2019年7月18日/by admin

Injection Mold Gate Design, Injection Mold Maker, Injection molds, plastic injection mold

Plastic Injection Mold Repair And Engineering Changes

Plastic Injection Mold Repair/Refurbishing/Maintenance, Fast Turn-Around Time, Original Manufactured Plastic Parts

SINCERE TECH, one of the most trusted custom mold manufacurers in China that specializes in mold design, mold making, die casting mold manufacturing, plastic molding service, and engineering. They have been making molds and molding parts for around 18 years. Their staff of industry professionals provides you with innovative and cost-effective mold-making & molding part solutions.

In addition to our injection mold building capabilities, SINCERE TECH offers complete all in one servcie from part design, prototype, testing, certificate, assembly, and packing, for the mold we will offer injection mold repair, refurbishment and maintenance services, if Sincere Tech Produce the molding parts for you, all of mold repair, maintenance are cost-free, if for export molds, during the mold lifetime guarantee shots, any components have issue, Sincere Tech will make mold components with free cost.

Even the best-made, top quality plastic injection molds need to be maintained and serviced regularly to keep them performing properly and ensure their productive lifespan.

Sincere Tech’s plastic mold company located in the Dongguan City, Guangdong Province, China, if you are not happy to any of your plastic injection molding supplier, you can take the mold to our factory, we will do all of mold repair jobs for you, after the mold repairing jobs finished, you can take to anywhere you want to go or let us produce the plastic molding parts for you.

Shortly after receiving the mold at our facility, we will perform a series of inspections, and present you with a detailed analysis of the mold and the repairs required to return it to production. Once the repairs are complete, the mold is tested by our technicians.

Benefits of Plastic Injection Mold Repair and Modification

Sincere Tech’s Molds and Engineering not only produces the highest quality molds available today, but we also provide the highest quality repairs and rebuilds And we stand behind our word. Our warranty guarantees the mold will retain its integrity throughout a specific number of cycles, or we will repair it at no additional cost.

In addition to considerable cost savings versus building new molds, repair or modification to your existing mold offers a number of other benefits, including:

Fast turn-around time – get back in production with minimal downtime

Keep your mold in original condition with original Sincere Tech’s manufactured parts

In-House recordkeeping of all work performed

Full 3D mold redesign and send you back for approval and data record

Sincere Tech can repair or modify numerous types of molds, including:

Insulated Runner

Unscrewing Molds

Cam Molds

Single Shot, Two-Shot, and Multi-Shot

Cold Runner

Insert Molds

Stack Molds

Encapsulation Molds

Over Molds

How to save mold repair cost from mould manufacturing countries

The world’s major mold manufacturing countries, including the Asian region: Japan, South Korea and mainland China, as well as the United States & Germany, this article will induce different countries in mold industry and comparative analysis of national competitiveness and the mold repiar cost from each countries.

Mold industrial status in different countries

Countries in the world’s major manufacturing and marketing area, China has the largest number of plastic mold companies, nearly seven times as state-owned enterprises, foreign-funded enterprises account to run the large-scale mold factory and employs approximately 600 ~ 700 people, Foxconn Hon Hai Group (Foxconn) employs nearly 6,00000 people before 2017, mold factory is between 150 to 300, Foxconn moved lots of capacity to indian since 2018, but seems they will come back to China again in 2024, let us wait and see.

Small mold factories about 50 people, other countries mold industry have much more small factories, Applications market, Japan, South Korea, the United States and Germany produce the largest proportion for automobile products, while China produces electronics and communications products and mold, but resently China made lots of larg automotive molds for the world companies as well.

In accordance with 2002 national research report, Japan, South Korea and Germany, mold is a strong quasi-surplus goods, the China mainland and the United States mold due to domestic demand in large markets and are unable to complete the supply of domestic firms and required by the import of mold in order to meet downstream market of products manufacturing, , import and export of the region are mostly in neighboring countries, while Japan exported more remarkable region in the U.S. mainly, but mainland China in recent years due to the rapid development of downstream industries, mainland China has been gradually turned to expanding market trends

Wage countries, according to 2002 white paper on the findings of the mold industry, Germany paid the highest salaries of technical staff for $ 12.13 ~ $ 19.28 per hour, the designer is $ 16.91 ~ $ 25.26, between Japan and the United States, the mold factory pay the lowest-paid technicians annual salary of only $ 732 ~ $ 5,853, the designer is only $ 2,927 ~ $ 5,853, China low wage costs have so great advantage

Analysis of national strengths and weaknesses

Technologically advanced countries such as Japan, the United States, Germany, for high-precision and complex nature of mold development, regardless of design capacity or manufacturing technology, have a leading position, but also have excellent R & D personnel practice. The Japanese mould maker emphasis on technically polished with the polishing process, the German mold manufacturers by enhancing mechanical processing and electrical discharge machining precision and efficiency begin to reduce the manual processing time. Market size regardless of value or domestic demand in Japan’s decline was most evident.

Operating costs are often faced with high wages, high benefits, so the downstream industries or mold makers to move production facilities to gradually close to the newly industrialized countries or technological backward countries, in order to reduce labour costs and enhance price competitiveness, but the trend is likely to cause technical invisible exodus worries, making themselves, even more, to be put in a large research and development costs in order to speed up the upgrading process technology and high-speed mechanical properties, widening the difference between each other. Taiwan, Korea and mainland China, South Korea and mainland China market in recent years.

the scale of production and demand are presented growing trend, particularly in mainland China mould industry is the rapid development of national brand name manufacturers stationed in production equipment, invisible mold development to enhance the strength and design capabilities. Costs, mainland China and South Korea because it has a relatively low labour cost advantage, and therefore the selling price for the mold, often take low-cost marketing to market, and thus poor global economic situation, the successful buyer to grab the market favour, the most obvious example of the gains in export value.

After many years since 2022, China can make hgih precision mold with competitive price, since 2010, most of companies were buying their molds from China, high quality and lower cost China molds are popular to the worlds, once you have your mold in China for production, the injection mold repair and maitain cost are nearly free, unless you change your design.

The conclusion On the whole, as countries mould industry, and many types of small business operations, therefore, operating on a regular fund-raising is difficulty, in the absence of government policy support and tax incentives in the formation of mold industry will go it alone with the situation alone, the only way is increasing the additional value of products in order to get rid of low-cost competition.

Finally, if you have a project that need plastic molding parts, to save your cost, find China mold maker will be one of the best options, Contact us today for your project, we will do your plastic injection mold repair and maitainance for free.

2019年7月15日/by admin

China mold, Injection molds, Polycarbonate Injection Moulding, polyurethane molding

Polycarbonate Injection Molding

What is a Polycarbonate (PC) Injection Molding?

Polycarbonate injection molding is an injection molding part made of PC (polycarbonate) material. It is a manufacturing process to produce products by inserting molten PC (polycarbonate) into a mold. Usually, the melt temperature for PC material is between 270 and 320 degrees Celsius. It may decompose at high temperatures and cause defects like bubbles, black spots, etc. Typically, the injection pressure is controlled between 80 and 120 MPa.

Polycarbonate (PC) is an amorphous thermoplastic. These polymers allow the transmission of light, like glass. An important feature is that they can be heated to their melting point, cooled, and heated again without degrading themselves. As PC can liquify, you can undertake injection molding. They are resistant to heat and can be used with flame-retardant materials. The molding parts are made of polycarbonate, which we call polycarbonate injection molding.

What is Polycarbonates or PC Material

Polycarbonate is generally called PC. Because of its excellent mechanical properties, this is commonly known as bullet-proof plastic. PC injection molding has high mechanical strength, a wide temperature range, good electrical insulation properties (anti-arc performance is unchanged), good dimensional stability and transparency, etc.

It is widely used in electrical products, electric meter enclosures, and electronic product structural members. There are many modified products of PC, usually added with glass fiber, mineral fillers, chemical fire retardants, and other plastics. PC has poor fluidity, and it needs high temperatures when working on the PC injection molding.

Uses of Polycarbonate (PC)

They are an absolute necessity when you need to impact resistance and transparency. There are other transparent-molded parts, which are acrylic injection molding.

PC (polycarbonate) can be used across multiple industries. They are primarily used in different medical devices, digital compact disks, protective gear, eyewear, and much more.

It is finding use with security agencies for mob control and finds its way into materials for protective visors and riot shields.

PC (polycarbonate) finds use in your car. Being flexible and heat-resistant, PC (Polycarbonate) is located in the internal focal points: radiator flame broils, entryway handles, and front light bezels. Polycarbonate is also used in making nurseries and greenhouses. It is UV-resistant, allowing in the sun’s rays but not the UV rays.

Mold release agents should not be applied to polycarbonate molds during this activity. The application of recycled materials cannot be done more than three times, with the application quantity limited to around 20%. or no recycled material for the high-polish injection molding parts.

Applications of Polycarbonate injection molding parts

There are many industries that use PC injection molding parts. Below are some of the most the most common industries that use PC injection molding parts:

Producing a variety of vehicle components, including dashboard panels, interior trim, and headlight lenses, is one of the main uses of PC injection molding. PCs are perfect for these applications because of their excellent impact tolerance.
Manufacturing a range of electronic components, such as housings for laptops, smartphones, and other electronic devices, is another significant usage for PC injection molding. Because PCs can shield delicate electronic components from heat and fire damage, their heat-resistant and flame-retardant qualities make them perfect for these applications.
Numerous medical equipment and devices are made using PC injection molding. Syringes, IV connectors, and surgical equipment are among the many items made from polycarbonate. PC is perfect for these applications because of its sterilizability and biocompatibility, which allow it to be utilized in medical settings without running the risk of infection.
Toys, sporting goods, and home appliances are just a few of the items produced in the consumer goods sector using PC injection molding. Because it is so easily molded into intricate shapes and designs, polycarbonate is a popular material choice for these kinds of applications due to its versatility and aesthetic appeal.

Benefits of Polycarbonate Injection Molding

The benefits arise from the type of material that is molded to give the end product. The benefits of polyurethane molding come from the characteristics of the polycarbonates that are used in the process.

Easy to make. PC is lightweight but durable, making installation so easy. You can even cut them with scissors if necessary.
Versatile. You can be creative with the structures. You can easily shape igloos out of it. Go ahead with those fancy shapes in your mind.

Resistant to impact. You are worried about the breakage. The material can resist rain, hail, and storms. It is resistant to flames and does not emit toxic gases when on fire.
Protects against harmful UV. They keep out the harmful radiation. They do not let the harmful rays into the glasshouses that are made of these materials.
Meager costs. These materials are easy to carry and handle. You do not have to bear high handling costs and labor.

high polishing injection molding

Disadvantages of Polycarbonate injection molding.

Toxicity. They are known to release bisphenol A (BPA) during degradation. You need to make them BPA-free.
Chemical resistance. It is sensitive to chemicals. It deteriorates when exposed to organic solvents. They are very sensitive to abrasive cleaners, cleaning products, and solutions.
Durability. It is prone to absorbing odors and stress cracking.

Flow marks. If you are making high-polish plastic injection molding parts or transparent injection molding parts by using polycarbonate, the flow mark could be the number one important issue that you need to prevent in advance. As a professional plastic mold company and expert in this type of material, gate design and cooling design are the most important things to solve those issues.

Are you ready for your plastic injection molding project now? Send us an email. We are one of the best mold suppliers in China, and we offer a wide range of plastic injection mold and molding services.

The Polycarbonate injection molding process

Material processing

Polycarbonate injection molding has high water absorption. So before injection molding, it must be preheated and dried. The pure polycarbonate is dried at 120 °C, and the modified PC should generally be dried for more than 4 hours at a temperature of 110 °C. The drying time should not exceed 10 hours. Generally, you can use the method of air extrusion to determine whether it’s dry enough. The utilization of recycled materials can reach 20%. In some cases, the utilization of recycled materials can be 100%; the actual quantity is subject to the quality requirements of the products. Recycled materials can’t mix different masterbatch simultaneously, or it will seriously damage the nature of the finished product.

PC injection molding
Selection of an injection molding machine

Now, for cost and other reasons, PC often uses modified materials, especially electrical products, which should increase fireproof performance. When the flame-retardant PC and other plastic alloy products are molded, it should make sure the plasticizing system of the injection molding machine mixes well and is corrosion-resistant. It is unachievable for the conventional plasticizing screw. So when choosing, you should state in advance that, usually, there are special PC screws for customers to choose from.
Design of mold and gate for polycarbonate injection molding

The common mold temperature is 80–100 °C, and the temperature of mold adding glass fiber is 100–130 °C. Small products can use the pinpoint gate; the gate depth should be 70% of the thickest part; and other gates are circular and rectangular. If the gate is bigger, it’s better, which can reduce the defects caused by excessive shear. The depth of the vent should be less than 0.03-0.06 mm; the runner should be short and round. The ejection gradient is generally about 30′-1.
Melt temperature for Polycarbonate material

You can use the gas injection method to determine the processing temperature. Generally, the polycarbonate injection molding processing temperature is 270–320 °C. The temperature of the PC with some modification or low molecular weight is 230–270 °C.
Injection speed

When molding, relatively fast injection speeds are usually adopted, such as for electrical switch parts. Commonly, it is from slow to rapid injection molding.
Packing

Packing is 10 bars around; it can be appropriately reduced without the gas lines and color mixing.
Dwell time

If the materials stay at high temperatures for a long time, they will degrade, emit CO2, and turn yellow. You should use PS to clean the cylinder, not LDPE, POM, ABS, or PA.
Special notes

Some modified PC injection molding material, as being recycled many times (the molecular weight decreased) or an uneven mix of ingredients, would easily produce the dark brown liquid bubble.

Produce high-quality polycarbonate injection molding parts that need a special injection barrel because polycarbonate has a high density. Nominal injection barrels make it hard to mold polycarbonate materials. If you are looking for high-quality polycarbonate injection molding parts, you need to look for a professional polycarbonate molding company to support you. You could contact us to make your PC molding parts.

plastic mold

The key point to select injection molding machine for PC Plastic Injection molding parts

Clamping force:

The finished projected area per square centimeter is multiplied by 0.47 to 0.78 tons (or per square inch by 3 to 5 tons).
The size of the machine: A finished weight is approximately 40–60% of the capacity of the injection molding machine. If the machine puts polystyrene as the capacity (oz), which needs to be decreased by 10%, At the beginning, which is used as GUANG DA’s capacity, 1 ounce is 28.3 grams.

Screw: Screw length should be at least 15 diameters long; L/DD of 20:1 is the best. The compression ratio is preferably between 1.5:1 and 30:1. The stop valve in front of the screw should be set into a sliding ring. The flowing gap of resin should be at least 3.2 mm.

Nozzle: The tip opening should be at least 4.5 mm (diameter); if the weight of the finished product is over 5.5 kg, the diameter of the nozzle should be 9.5 mm or above. Besides, the tip opening should be less than 0.5–1 mm smaller than the gate diameter, and the segment road is shorter, which is better; it’s about 5 mm.

The key point on molding conditions for PC injection molding:

Melt temperature and mold temperature:

The best molding temperature setting is related to many factors, such as size presses, screw configuration, the mold and the molded article in the design, the molding cycle time, etc. In general, to make plastic gradually melt, you should set a lower temperature in the rear section of the feed tube or feeding area. And set a higher temperature in front of the feed tube. However, if the screw is designed defectively or the L/DD value is too small, you can also set the reverse temperature.

For the mold temperature, the high mold temperature may provide a better surface appearance, and the residual stress will be smaller. For the thinner or longer-finished PC plastic injection molding products, it’s easy to fill. However, low mold temperatures can shorten the molding cycle.

The speed of rotation of the screw is suggested at 40 to 70 rpm, but it’s subject to the design of the machine and screw.

Injection pressure: to fill the mold as soon as possible, the injection pressure should be bigger, which is better. Generally, it’s about 850 to 1,400 KG/CM2, up to 2,400 KG/CM2.

Packing: Generally, the lower, the better. For the sake of uniformity in feeding, it is suggested to use 3 to 14 KG/CM2.

The speed of injection molding: firing rate has a great relation with gate design; when using a direct gate or edge gate, in order to avoid the day sunshine phenomenon and the phenomenon of wave and current marks, you should use the slow firing rate. What’s more, if the thickness of finished products is above 5 mm, you can use slow injection to avoid air bubbles or recesses.

In general, the principle of firing rate is faster for the thin and slower for the thick. From injection to holding pressure, holding pressure is as low as possible to avoid molding products appearing to have residual stress. However, you can use the annealing method to remove or alleviate the residual stress. The condition is 120 to 130 degrees Celsius for approximately half to one hour.

PC plastic injection molding

Feed cylinder’s cleaning

1. Under the molding temperature of polycarbonate, add cleaning materials (general-purpose polystyrene or transparent benzene) and continuously inject for 20 to 30 times.
2. Put the machine back and continue the cleaning material by air injection until the injected cleaning materials begin to swell and blister.
3. Reset the temperature of the feed cylinder to 200 to 230 degrees Celsius.
4. Continue cleaning the material by air injection until the melt temperature of the cleaning material reaches 260 °C and the feed cylinder looks very clean and transparent on the surface.

If you are looking for polycarbonate injection molding or any other plastic injection mold for your project, feel free to contact us. We offer custom injection molding made in PC, PMMA, ABS, PA66, and many more. Send us an email to get a price for your custom molding project now.

Sincere Tech is one of the top 10 plastic injection molding companies in China. We offer a wide range of custom PC injection molding, die casting molds, metal parts, CNC machining, and mold components. Through ongoing investments in research and development, we deliver cutting-edge solutions that address the evolving needs of our customers. As one of the best injection mold suppliers in China, we pride ourselves on our commitment to excellence.

Quality is of the utmost importance to us. To make sure we make high-quality plastic molds, we will use a CMM measuring machine to measure all mold components, electrodes, and final molding parts. To make sure all dimensions are within tolerance, we will test the function of parts and materials to make sure that the final part will meet your requirements.

If you are looking for a China mold maker for PC injection molding or any custom molds, Sincere Tech is one of your best options. You can expect the highest level of professionalism, expertise, and innovation. With our experienced team, we are dedicated to helping you bring your ideas to life, delivering superior products that excel in performance, durability, and cost-effectiveness.

Our expanded capabilities include, but are not limited to, the following services:

Rapid Prototyping: We offer rapid prototyping services (3D printing or CNC machining prototypes) to quickly transform your rough design into usable prototypes, testing, redesign suggestions, etc.
Precision CNC machining: Our advanced CNC machines enable us to create high-quality mold components with tight tolerances, which will currently ensure tolerance and precision in the injection-molded products.
Overmolding: We make overmolding for some handle tools; some of the overmolding process is used in die casting molds as well. Contact us for a quote on your overmolding project.
Insert Molding: Insert molding is similar to overmolding but will be a little different; insert molding normally uses metal parts as substrate, and overmolding uses plastic parts as substrate.
Two-Shot Molding: With two-shot molding, we can produce complex, multi-material components in a single operation, reducing assembly requirements and enhancing design possibilities. Two-shot molding is more complex than insert molding or overmolding, and two-shot molding requires a two-shot injection molding machine.
Value-Added Services: In addition to injection molding, die casting, and machining, we offer a range of value-added services, including product silkscreening, painting, assembly, testing, certificates, packaging, and logistics support, streamlining your supply chain and reducing costs.

Partner with Sincere Tech China Mold Maker for your PC injection molding, die casting, and machining needs. We will offer you the best quality and a fast lead time. Contact us for a quote in 24 hours.

2019年7月8日/by admin

China mold, injection molding toys, Injection molds, molding toys, Plastic Building Blocks, plastic molding company, plastic toys, silicone toys

How To Make Plastic Injection Molding Toys

What is plastic injection molding toys?

Plastic injection molding toys are plastic toys that are molded by plastic injection molding manufacturing technology. This plastic mold technology can produce millions of identical plastic molding toys with a high degree of precision and accuracy. To save the plastic toy unit cost, the injection molding process will be one of the best manufacturing methods produce a wide variety of plastic molding toys. including those that are popular during the holiday season.

This process involves injecting molten plastic into a mold, where it is cooled and solidified into the desired shape. Injection molding is an efficient and cost-effective way to mass produce plastic toys, and it allows for a high level of customization and design flexibility.

As Christmas approaches, many parents and gift givers start to think about what toys they will be buying for the children in their lives. Plastic injection molding toys can be a great option for a number of reasons. Here are just a few:

Durability: One of the biggest benefits of plastic injection molded toys is that they are extremely durable. Unlike toys made from other materials, such as fabric or paper, plastic toys can withstand rough play and accidental drops. This makes them a great choice for children who are known to be hard on their toys.
Safety: Safety is always a top concern when it comes to children’s toys. Plastic injection molding toys are made with high-quality materials that are free of harmful chemicals and toxins. This means that they are safe for children to play with and handle.
Variety: There is a virtually endless variety of plastic injection molded toys on the market. From action figures and dolls to educational toys and puzzles, there is something for every child’s interests and age group.
Customization: Injection molding allows for a high level of customization when it comes to toy design. Companies can create custom molds for their toys, allowing them to create unique and one-of-a-kind items that stand out on store shelves.
Affordability: Plastic injection molding toys are often more affordable than other types of toys. This makes them a great option for parents and gift givers who are working with a budget.

If you are considering purchasing plastic injection molded toys for the holidays, there are a few things you should keep in mind:

First, be sure to choose toys that are appropriate for the age and interests of the child you are buying for. It is also important to pay attention to any safety warnings or age recommendations that come with the toy.

In addition to these considerations, you may also want to think about the environmental impact of the toys you are purchasing. While plastic injection molded toys are durable and long-lasting, they can still end up in landfills if they are not properly disposed of. To help reduce waste and protect the environment, consider purchasing toys that are made from recycled materials or that can be easily recycled once they are no longer being used.

Important cost for injection molding toys.

Before making injection-molded toys, you need to have toy molds according to your custom toy design; this is the initial mold cost for your toy project. The plastic toy mold is made of metal and is divided into two parts: the moving half, known as the “cavity side,” and the fixed half, the “core side.”

The cost of injection molding toy molds depends on the toys size and design complexity and the number of toys you plan to make in one injection mold. The basic cost for injection molding toys will be around $500 to $10,000, or even more. You can go to the How Much Does an Injection Mold Cost page to know more about the cost of injection molds.

Once the toy mold is completely finished, fasten the toy mold into an injection molding machine, which we call the molding process, which heats plastic pellets in a hopper until they melt. The molten plastic is then pumped into the toy mold under high injection pressure, and as the plastic cools and hardens inside the mold cavity and core, it becomes the shape of the toy. After the plastic has cooled and become solid, the mold is opened and the toy is extracted.

This is a basic plastic molding procedure for toys that may be done several times to create multiple identical toys. Below is basic injection molding, in which the same process is used to produce the injection molding toys.

Basics of plastic injection molding procee for molding toys

The basics of plastic injection molding involve melting the chosen thermoplastic down to a liquid state within a hopper, then injecting it into a mold until it is dry and is able to be popped out and sent on down the assembly line for painting, staining, or further assembly if it is a toy with numerous parts. It is also possible to insert numerous colors of plastic into the same mold so that no additional coloring process is necessary afterward, a tricky and impressive process that saves both time and money. Santa is a big fan of efficiency; particularly considering he delivers toys all in one night.

Not only are classic plastic toys produced by plastic injection molding processes but gifts that Santa would bring for teenagers and adults can also be partly produced by various injection molding processes. For example, electronic gadgets such as iPads have a plastic cover on them that would be quickly and easily mass-produced by way of plastic injection molding. Other items would include office supplies such as the bodies of pens, movie covers, pill bottles, make-up containers, and many other items that could all be given as gifts at Christmas.

Overall, plastic injection molded toys can be a great option for the holidays. They are durable, safe, and offer a wide variety of options for children of all ages. Just be sure to choose age-appropriate toys and consider their environmental impact when making your purchase.

If you are looking for any plastic molding toys or Plastic Christmas Toys for your business, send us your requirement for quotation, we offer you the best price for any of your custom plastic molding toys or Plastic Injection Molded Christmas Toys.

Plastic molding toys

Are you having a challenge in finding plastic toy mold manufacturer to manufacture your injection molding toys? This review is a guideline on how to find an injection molding toys manufacturer.

How to find a plastic molding toys company?

If you are going to make some silicone toys or injection molding toys, the first thing you need to do is find injection molding toy factories.

Below there are three ways in which you can find toys mold/molding manufacturers;

Sourcing plastic molding toys factories online

There are so many websites that you can search and find plastic molding toy manufacturers online. As we are living in a digital world, finding a manufacturer is a click or a tap away. The suggestions online are very many, so you will choose one that serves you best and has good terms. First, you start by consulting them on the price they do manufacture. Then you will compare them all, and the best choice is to hire the one with a fair price or the lowest price.

We made many type of plastic injection molded toys, contact us to get a quote now.

Moreover, the terms of the payment method are another factor to consider before you pick the manufacturer. You need to consider manufacturers whose terms and methods of payment are available and transparent to you.

After getting the price quotation, you need to ask the toy mold/molding manufacturer to send you samples of the work they have done before. Here, you will be trying to identify the one with unique and quality products. Quality is a key consideration, as you need a toy product that will last for a long time. Being unique is also a factor in avoiding monotony and commonness.

Finally, you need to know the minimum order quantity of manufacture so as to identify if the plastic toy manufacturer is within the boundaries of your order. Some manufacturers’s minimum order quantity is way too high for you to meet it. This is the easiest and most convenient way.

Find a professional plastic molding toy source agent.

Another way to find a plastic molding toys mold manufacturer is by finding a professional source agent. The agents mostly have information on suggestions based on years of experience according to your specifications and requirements.

What the agents do is act as an intermediary between you and the manufacturer. You give them your quotation and the specific requirements you need, and they will recommend you manufacture from their wide source of information and experience.

The agents do all the work for you by sourcing the injection molding toys manufacturers for you and linking you to the manufacturers. After the professional agent sources the manufacturer, they will advise you on the best way to make payment and get your products delivered to you within the specified period.

The only problem with this is that there will be an additional fee for the professional source agent. Again, they can recommend a manufacturer who will not deliver quality work, as they act as brokers between you and the manufacturer. This is a way to find manufacturers by those who are busy and committed to finding them by themselves. I assume everyone would rather deal with the business directly with the plastic molding toys company to save cost, but this is still an idea.

Looking for mold suppliers to make injection-molded toys for you? Contact us to get a quote for your injection-molded toys.

By attending an exhibition to find a plastic injection molding toys factory

Attending a plastic injection molding toys exhibition can help you find a toy manufacturer. The method is very convenient, as you get to see the sample the manufacturer has made and the price they do offer. Additionally, you get a chance to talk face-to-face with different manufacturers and interact on a personal level.

You could ask them about the quality of the product and why their toys product is better than others in the market over the competitors. Here at the exhibition, you gain more knowledge about the product and get to decide which manufacturer to choose, considering their product quality, price, duration of manufacturing, minimum order quantity, and method of payment.

The best thing about attending an exhibition is that you can find a plastic molding toys manufacturer who is giving a commission and save yourself some money. Attending an exhibition gives you a chance to ask for a recommendation from professionals who have no business interest in the product. Attending an exhibition is the best way to find a manufacturer to manufacture your toys at affordable prices with the best quality and offers.

Conclusion

Apart from these three ways, there is another way to find an injection plastic molding toy factory, where you ask for a recommendation from people who are in the same business. The challenge with this is that some recommendations can be biased depending on personal or business interests. You can also ask for recommendations from your friends.

The most recommendable way is to source online or ask for a recommendation from your friends.

Sincere Tech is one of the top 10 injection molding toys companies in China that makes lots of plastic molding toys and silicone toys for toy companies. Some of these plastic injection-molded toys include custom plastic building blocks toys, car molding toys, train mold toys, plastic roof toys, plastic lifter toys, plastic doll toys, etc.

If you are looking for contract injection molding toys factories from China to make your plastic molding toys or silicone toys, contact us to get a price. We will solve your issue from toy design, prototype, massive production, assembly, and packing, all in one-stop service.

2019年7月3日/by admin

Injection molds, plastic injection mold, plastic injection molding, Plastic Injection Moulding China, Plastic Mold Companies, plastic molding company, Plastic Molding Parts Manufacturing, plastic molding service

How To Buy Plastic Injection Mold and Molding Parts From China

China has become a major destination for Plastic Injection Mold and molding parts service. Lower prices are the primary incentives for many foreign buyers. The majority of foreign buyers find challenges sourcing plastic injection molding from China. The major strains are on how to buy, how to evaluate quality, or how to identify a reliable source.

Many things go wrong in case of compromise in the purchase process. For example, delayed delivery, frauds, low quality, weakness of communication (both on language and technical), and other problems may be encountered. To avoid such frustrations, the following is a process of how a buyer would purchase plastic injection molding from China. Hope this could help you find your best suitable supplier

Identify a Reliable Plastic Molding Manufacturer

Currently, there are many mold manufacturing companies in China. You need to determine which supplier is reliable. Some of the factors to consider include, mold price, quality, quantity, accessory standard, communication, lead times, and the mold design, among other factors.
Using the World Wide Web, you can easily find a wide range of plastic molding suppliers from the internet, sourcing agents, and trade shows, etc.

It is important to contact several suppliers before making a decision on a suitable supplier.
Buy Plastic Injection molding from China

Evaluate the Various Mold/Molding Manufacturers

Conducting market research on the various plastic molding manufacturers helps to find a suitable fit for the business. So how can one evaluate the Chinese mold makers to identify a reliable source?
Sending inquiries helps the evaluation process. You should focus on asking questions that evaluate the core competence of the plastic molding companies.
A good supplier is one that shows interest in your projects, has effective communication, knowledgeable, detail-minded, and honest. The evaluation should target to identify the salient attributes of the supplier, for example, what is advantages do they have, is it suitable for your project? Have they done any similar projects like yours? All of the information will help to make your project smoothly or not.

Information Verification

Not all manufacturers are who they say they are. The customer should be able to verify the plastic molding manufacturer. Some of the information that can be verified include:

Type of mold parting line
The type of ejection modes, whether pins are used and the particular locations,
Surface requirement on the visible surface
The location and type of gates

Such information helps to verify the mold designs and product appearance. the most important thing is basing on this discussing with each other you will know their communication and technology ability. A supplier that verifies the information and offers samples is reliable.

Analysis of Production Issues that may Arise

A good plastic molding supplier should communicate the issues in advance and concerns that may arise in the production process, and actions are taken to address the issue. A good injection mold company should analyze the current design and offer rational recommendations, we call this DFM report.
Some of the important questions that help identify some of the issues include;

Have you produced similar molds/products before?
What were the challenges encountered?
Can you send your quality control inspection report?
How do you address the issues that arise?
Do you offer compensation for compromises?

With all the information, you should already have identified which Chinese molding company to source from.

Firm/Supplier Site Visit

Depending on the quantity of supply sourced, visiting the supplier may be important. For large quantities of plastic molding service, traveling to China should be a basic step. The objective is to analyze samples and evaluate the reliability of the supplier.

Go to their plastic molding company on site to communicate with them face to face, then you will know how the technical skill, English ability, etc. But mostly not always have time to check their mold factory, so we suggest you may ask for a skype video shows if you have no time to visit them.

At SINCERE TECH will take Skype video meeting to show you around our plastic mold and molding factory if you have no time to visit our factory, our sales and project manager speak good English and have the professional technical skill, you will know this during the video shows. if you are interested in our service, you are welcome to contact us.

injection moulding company

Maker A Contract

Importing products from China and Asian nations can be risky and complicated. Contracts are antidotes against the common mistakes and issues that may arise. It is essential for buyers to get into a contract for the following reasons;

To maintain clarity on product specifications and avoid misunderstandings. The specifications of the product can be easily lost in Skype or mail communication.
Compensation terms help suppliers to think twice about compromise.
Contracts help to communicate on how severe your business is
It helps to avoid delays

The first time you work with a China plastic injection molding company (same to work with your local supplier), you should always make agreements on contracts to avoid scams and fraud. Suppliers who default the negotiations should be responsible for making refunds and necessary compensations.

7.Payment and Delivery

Based on the set agreement, the amount can be paid by one time or two times ( maybe more times). The payment method depends on the agreed strategy. Some companies make payments via Paypal, Skrill, Payoneer, Western Union, Cheque, or other policies. Our standard payment term is T/T wire transfer. If the small amount. PayPal is still available, this is method is normally working for all of the companies in China, especially for custom plastic molding manufacturing service.

Concluding Thoughts

Buying plastic molding from China can be challenging. However, if you follow the seven steps, the process is easy and with no compromise. when you find your reliable partner from China, then your business will be increased rapidly, this is verified by lots of companies like Apple, and other car companies (over 80% of car companies buy their auto car molds from China), etc.

Doing online businesses have fraudulent operations. You should be cautious on the approach of doing business online to avoid frustrations, lots of company doing online business with China and successful to the business, also some of the customers had issues when doing business with Chinese manufacturers, or even have issues with your local supplier as well, do you agree? The above steps could help you avoid this issue and the success of your business.

Need any plastic injection mold/molding companies from China? Contact us now, you will find out we are your best partner in China. Welcome to talk with us on any questions.

2019年7月2日/by admin

2k injection molding, cold runner mold, cold runner molding, hot runner molding, Injection Molding Cost, Injection molds, multi-cavity mold

How To Save Injection Molding Cost By Multiple Cavity Mold

How To Save Injection Molding Cost By Multiple Cavity Mold

When you have a project, then you may need plastic injection molded parts. The first thing you need to do is find a plastic mold company to make mold & molded parts, but before starting this, I think you need to check injection molding cost and mold cost in advance for your investment budget. Multi-cavity injection molding will be one of the best ways to save unit production cost.

Like other things, there is no one solution that is suitable for all of the projects. Below are some suggestions on how to save injection molding cost. There are both advantages and disadvantages; by reading this, you could choose the one based on your project requirements.

What is multi cavity injection molding

Multi-cavity injection molding is typically used when high-volume production of identical parts is needed. It allows for the efficient production of multiple parts in a single cycle, which can significantly increase production rates and reduce the cost per part. Additionally, using a multi-cavity mold can also help to reduce the overall cost of the mold itself.

Multiple cavity mold means the number of cavities greater than one, which means that it has more than one part in an injection mold. It is usually professional to say cavity, One cavity or two cavities, for example, 8 cavity mold, means one molding cycle to mold 8 parts with the 99% same part feature, dimension, shape, size, etc.

Some examples of products that may be produced using multi-cavity injection molding include automotive parts, electronic components, toys, and household items. It is also commonly used in the production of medical devices, personal care products, and packaging.

24 multiple cavity mold

When do we need Multiple Cavity Mold?

There are some factors to consider before starting to make your plastic mold.
1, the size of the plasatic product,
2. The number of the plastic products requirement
3. The size of the machine; if you only buy plastic molded parts, then you do not need to care about this point; your plastic molding supplier will handle this for you.

If the size of the product is small, such as the computer keyboard button, usually make 24 or 48 Multiple Cavity Mold, you must say why not make 30 or 40? This is because of the balance mold layout and material filling balance, especially when you use cold runner mold. So normally multi-cavity mold is 4, 8, 16, 24, 48, and 96 cavities are better options.

When we make multiple cavity mold and the cavities are more than 24, we normally suggest making hot runner mold, one part per hot drop. Of course, this will be a high cost for the injection mold. In that case, we suggest at least using six hot runners transferring to the cold runner, which means four cavities per hot drop. This could save the cycle time and keep the best quality of injection molding parts.

The advantages of Multiple Cavity Mold

The reason we make multi-cavity molds is simple: we need to save production unit cost for each plastic molded part. Multi-cavity molds have several advantages over single-cavity molds in injection molding:

Increased production efficiency: By producing multiple identical parts in a single cycle, Multiple Cavity Mold can significantly increase production rates and reduce the overall production time.
Reduced cost per part: Multiple cavity molds can produce multiple identical parts at a lower cost per part than single cavity molds.
Reduced tooling costs: Since multi-cavity molds require only one tool, the overall cost of the mold is typically lower than that of multiple single-cavity molds.
Better consistency: By producing multiple identical parts in a single cycle, multi-cavity molds can improve the consistency of the final product, reducing the need for rework or scrap.
Reduced labor costs: Multi-cavity molds require less labor to operate than multiple single-cavity molds, as the operator only needs to monitor one machine.
Reduced material consumption: By producing multiple parts in a single cycle, multi-cavity molds can also reduce the amount of raw material required to produce the final product.
Improve part quality: Due to the consistency in the process and the precision of the machinery, multi-cavity molds can produce parts with tighter tolerances and a better surface finish.

The disadvantages of multi cavity mold

We all know that all of the customers prefer the multiple cavity mold since this can save lots of production cost, but there are other factors you need to think about before making a decision, because making plastic mold is not cheaper; making multi-cavity mold is more expensive than single cavity mold, sometimes double or even three times more expensive than single cavity or two-cavity mold.

For example, if you make 24 cavity mold, then you at least need 6 hot runner drops for the mold; the pure hot runner cost is around USD 5400 (YUDO brand); if you use a China local brand of hot runner, you still need USD 3000, and this cost some times is enough to make 2 cavities of cold runner mold. Since there are many cavities in one mold, the mold manufacturing cost is higher than the less cavity mold as well; this is another cost, so the total cost is two or three times more.

Higher initial cost: The initial cost of a multi-cavity mold can be higher than that of a single cavity mold, especially for complex designs.
Greater complexity: Multi-cavity molds are more complex than single-cavity molds and require more precise machining and design. This can lead to longer lead times for tooling and an increased risk of defects.
Higher maintenance costs: Due to the complexity of the mold and the increased number of moving parts, multi-cavity molds may require more maintenance and repairs than single-cavity molds.
Greater risk of defects: With multiple cavities, the risk of defects is greater, as a problem in one cavity can affect multiple parts.
Increased cycle time: Multi-cavity molds have longer cycle times than single-cavity molds as the machine has to fill multiple cavities at once.
Greater potential for warpage: multi-cavity molds have to be designed to account for the potential warpage that can occur during the cooling phase of the injection molding process.
Increased risk of sink marks: As the material cools, it will shrink. If the mold design is not optimized for multi-cavity, sink marks may appear on the surface of the parts.
Increased risk of flash: flash is the excess material that is extruded from the mold. Multi-cavity molds can be more prone to flash than single-cavity molds, as the pressure and flow rate of the material are increased to fill multiple cavities.

When do you need multiple cavity mold

There is some simple suggestion: when do you need to make single cavity mold (may have 2 cavities at the fist) and when should you make multi-cavity mold, like 8 cavity mold, 16 cavity mold, or more? When you are sure that you will need the plastic parts more than one million or at least 0.5 million, then going to 8 or more mold cavities will surely save cost for you.

You may need to pay more for plastic mold manufacturing, but compared to the production cost you are going to save, this injection mold cost is insignificant because you will save 10 times more than this injection mold cost.

If you are not sure how many plastic molding parts are needed at the first, or if this is depending on your business market, then we suggest using the 2 cavity mold at first, because this can save the plastic mold cost for you in advance. After you open your market and the requirement of injection molded parts increases, you can still save injection molding cost by making new multiple cavity mold.

You use the existing mold to produce the parts at the same time and make a new multi-cavity mold; this will not have a delay as well. After the multiple cavity mold is finished, you only need to run this multi-cavity mold, but if the quantity requirements are not so high, then you use the current molds to produce, so you still have good profits with less investment (compare to make multi-cavity mold at the beginning).

When do you need single cavity mold

A single-cavity mold is a type of mold used in the injection molding process. It consists of a single cavity or impression that forms the desired shape of the plastic part. This type of mold is used when the production volume is low or when the part design is complex and requires more attention to detail.

Advantages of using a single-cavity mold include:

Flexibility: Single-cavity molds allow for more flexibility in terms of part design and material selection. Each cavity can be customized to meet specific requirements.
Precision: With only one cavity to focus on, manufacturers can pay more attention to detail and ensure higher precision in the molding process. This is particularly important for intricate or complex part designs.
Cost-effective for low volume production: Single-cavity molds are cost-effective for low volume production runs. They have lower initial tooling costs compared to multi-cavity molds and are more suitable when the production quantity is small.
Material compatibility: Single-cavity molds are ideal when different materials or processes are required for each part. This allows for the production of diverse parts with varying material properties.

A single-cavity mold is typically needed when you require a small quantity of parts or when the part design is complex and requires more time and precision to manufacture. It is also used when the part size is large and cannot be accommodated in a multi-cavity mold. Additionally, a single-cavity mold may be preferred when the cost of manufacturing multiple cavities is not justifiable or when the part design requires different materials or processes for each cavity.

What do you think? By reading above, I assume you have an idea on how to save injection molding costs for your project.

If you have any project in hand that needs to make injection mold for your business, you are welcome to contact us. We will give you some good suggestions and ideas to help you spend minimum investment on plastic mold cost and open your market rapidly.

Sincere Tech is one of the top 10 mold manufacturers in China and offers custom plastic molds, injection molding manufacturing, die casting,prototypese, machining, and many moreservices. As one of the best injection mold suppliers in China, we pride ourselves on our commitment to excellence.

Below are a few of the services we offer:

Rapid Prototyping: We offer rapid prototyping services to quickly transform your concepts into live parts, allowing for iterative design improvements and accelerated product development. Please go to the rapid prototyping service page to know more.
Precision CNC Machining: Our advanced tooling equipment enables us to make high-quality plastic molds and machining components with tight tolerances, ensuring consistency and precision in your injection-molded products. Please go to the precision CNC machining page to know more.
Overmolding: We specialize in overmolding, which allows for the combination of multiple materials or components, resulting in enhanced functionality, aesthetics, and durability.
Insert Molding: Our expertise in insert molding enables us to securely encapsulate inserts within the molded parts, facilitating efficient assembly and enhancing product performance.
Two-Shot Molding: With two-shot molding, we can produce complex, multi-material components in a single operation, reducing assembly requirements and enhancing design possibilities.
Value-Added Services: In addition to injection molding, we offer a range of value-added services, including product assembly, packaging, and logistics support, streamlining your supply chain and reducing costs.
Product assembly Service: We offer all in one service from part design, production, until delivery, if you need products assembly service in China, we will be one the best options for you.

Not limited to below but more services we offer, welcome to contact us for your custom injection molding needs (no matter multiple cavity mold or single cavity mold).

2019年6月29日/by admin

Information about PA6/PA66 (Nylon) Injection Molding

Advantages Nylon Injection Molding :

Disadvantages of PA injection molding:

Nylon Injection Molding process:

PA Nylon injection molding Technique

What is Plastic Moulding

Type of plastic molding

Blow Molding

Injection molding

Thermoforming molding

Themoset Transfer Molding

Reaction Injection Molding

Compression Molding

Extrusion Molding

Plastic Moulding Knowledge Guidance

We are A Plastic Molding Parts Manufacturing Company

Plastic Mold & Plastic Molding Parts Service: Your One-Stop Solution

SINCERE TECH’s Capabilities

What is Proto Mold

Difference between Proto mold and production mold

The technique of rapid tooling injection molding

Tips on how to get Getting the Perfect Prototype Part & Proto Mold?

Plastic Product Design Service from plasticmold.net

Plastic Injection Mold Repair/Refurbishing/Maintenance, Fast Turn-Around Time, Original Manufactured Plastic Parts

Benefits of Plastic Injection Mold Repair and Modification

How to save mold repair cost from mould manufacturing countries

Mold industrial status in different countries

Analysis of national strengths and weaknesses

What is a Polycarbonate (PC) Injection Molding?

What is Polycarbonates or PC Material

Uses of Polycarbonate (PC)

Applications of Polycarbonate injection molding parts

Benefits of Polycarbonate Injection Molding

Disadvantages of Polycarbonate injection molding.

The Polycarbonate injection molding process

Material processing

Selection of an injection molding machine

Design of mold and gate for polycarbonate injection molding

Melt temperature for Polycarbonate material

Injection speed

Packing

Dwell time

Special notes

The key point to select injection molding machine for PC Plastic Injection molding parts

Clamping force:

The key point on molding conditions for PC injection molding:

Melt temperature and mold temperature:

Feed cylinder’s cleaning

What is plastic injection molding toys?

Important cost for injection molding toys.

Basics of plastic injection molding procee for molding toys

How to find a plastic molding toys company?

Sourcing plastic molding toys factories online

Find a professional plastic molding toy source agent.

By attending an exhibition to find a plastic injection molding toys factory

Identify a Reliable Plastic Molding Manufacturer

Evaluate the Various Mold/Molding Manufacturers

Information Verification

Analysis of Production Issues that may Arise

Firm/Supplier Site Visit

Maker A Contract

How To Save Injection Molding Cost By Multiple Cavity Mold

What is multi cavity injection molding

When do we need Multiple Cavity Mold?

The advantages of Multiple Cavity Mold

The disadvantages of multi cavity mold

When do you need multiple cavity mold

When do you need single cavity mold

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