What are the steps of plastic injection molding?

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Home > News > What are the steps of plastic injection molding?

What are the steps of plastic injection molding?

2023-10-14

plastic injection molding is a common plastic processing method. Its main steps include:

1. Mold design and manufacturing: First, you need to design and manufacture a Plastic Plastic Injection Mould suitable for the product. If necessary, you can choose to Custom Plastic Injection Molding, including the shape, size and structure of the product.

2. Plastic particle pretreatment: Plastic particles are dried to remove moisture and impurities to ensure the quality of injection molding.

3. Injection molding machine operation: Put the pretreated plastic particles into the hopper of the injection molding machine. The plastic particles are heated and melted by the screw of the injection molding machine to form a molten plastic melt.

plastic injection molding

4. Mold sealing and injection molding: Inject the molten plastic melt into the closed mold cavity through the nozzle of the injection molding machine, so that it fills the entire mold cavity.

5. Cooling and solidification: After the injection molding is completed, keep the mold closed so that the plastic cools and solidifies in the mold and becomes a solid plastic product.

6. Mold opening and demoulding: After the plastic is completely cooled and solidified, open the mold and take the molded plastic product out of the mold to complete one-time injection molding.

7. Product post-processing: For products that require post-processing, such as trimming, grinding, painting, etc., this can be done after molding.

It should be noted that different products and requirements may have different steps and operational details.

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