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China Custom High Precision Plastic Injection Molding Services

Plastic injection molding is the most common manufacturing process for the fabrication of large quantities of plastic parts. As an ideal method to producing high volumes plastic parts in the same shape, plastic injection molding can be used to create various of plastic parts, which vary greatly in size, complexity and application. Almost every plastic item around you was manufactured by injection molding.


The plastic injection molding at Zhongde is a standard process involving a stainless steel mold, it can be divided into six stages: mold clamping, injection molding, pressure holding, cooling, mold opening, and product removal. At a certain temperature, the completely melted plastic material is stirred by a screw, injected into the mold cavity with high pressure, then cooled and solidified into the final plastic molded parts.


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Plastic Injection Molding
Guideline of Custom Precision Plastic Injection Molding Service

Size of Precision Custom OEM Plastic Injection Moulding


Below table shows the size of Plastic Injection Molding parts we usually make. If you need a larger size, we can also help you achieve it.


Size

Metric

Inch

Length

2500
98.4

Width

200078.7

Height

150059


Available Material of China Plastic Injection Molding Businesses For Sale


In addition to the general materials listed below,  Zhongde can also modify the materials according to the special needs of customers. Our professional engineers will adjust the raw material formula to meet the unique conditions of use.

  • ABS | Acrylonitrile Butadiene Styrene

  • PA 6 | Polyamide 6, Nylon 6

  • PA 6/6 | Polyamide 6/6, Nylon 6/6

  • POM | Acetal Polyoxymethylene, Delrin

  • PP | Polypropylene

  • PE | Polyethylene

  • LDPE | Low-Density Polyethylene

  • HDPE | High-Density Polyethylene

  • UHMWPE |Ultrahigh Molecular Weight Polyethylene

  • PTFE  | Polytetrafluoroethylene

  • PEEK | Polyether Ether Ketone

  • PC | Polycarbonate

  • PMMA | Polymethyl Methacrylate, Acrylic

  • PS | Polystyrene

  • PVC | Polyvinyl Chloride (Shore D)

  • PU | Polyurethane


Additives of Manufacturing Practical Plastic Custom Injection Molding


Name

Description

UV absorbers

Absorb UV radiation, slowing down the degradation of the material when used outdoors.

Flame retardants

Prevent ignition and inhibits spread of fire.

Plasticizers

Increase flexibility and promotes plasticity, reducing brittleness of the material.

Colorants

Used to color plastics.

Carbon fibers

Increase strength, toughness, and rigidity of the material at the expense of making the material more brittle.

Glass fibers

Increase strength, toughness, and rigidity of the material at the expense of making the material more brittle. It is more flexible than carbon fibers.


Surface Finishing of Cheap/Low-Cost Plastic Injection Molding Services


Name

Description

Glossy

The mold is smoothed and then polished with a diamond buff, resulting in parts with a mirror-like finish.

Semi-gloss

The mold is smoothed with fine-grit sandpaper, resulting in parts with a fine surface finish.

Matte

The mold is smoothed using fine stone powder, removing all machining marks.

Textured finish

The mold is first smoothed with fine stone powder and then sandblasted, resulting in a textured surface.

As-machined finish

The mold is finished at the machinist's discretion. Tool marks may be visible.


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