Injection molding precision machining is a common type of plastic machining, usually used to produce precision plastic parts. The following are the general steps of injection molding precision machining:

　　Raw material preparation: Selection of appropriate plastic raw material, usually plastic resin in granule or powder form.

　　Melting: The plastic raw material is added to the hopper of the injection molding machine and melted into a flowing state by heating and mechanical stirring.

　　Injection: The melted plastic is pushed into the mold through the screw of the injection machine. The mold usually consists of two parts, one of which is fixed to the machine and the other can be moved for injection and ejection.

　　Cooling: Once the plastic has filled the cavities in the mold and taken the desired shape, the cooling system in the mold will begin to reduce the temperature, allowing the plastic to cure quickly.

　　Mold Opening: Once the plastic has cured, the mold separates to release the finished part. This usually requires some cooling time to ensure that the part is not deformed or damaged.

　　Post-processing: The finished part may require trimming, removal of residue or support structures that may remain on the surface, and other surface treatments such as painting, printing, etc.

　　Inspection: Finished parts are inspected for quality to ensure that they meet specified dimensions, shapes and quality standards.

　　Packaging and Transportation: Compliant parts are packaged and transported to their destination, ready for use or further assembly.

　　These steps may vary depending on the complexity of the part, material properties and production requirements. Injection molding precision machining is a precise method of plastic processing, widely used in automotive, electronics, medical devices, household appliances and other fields.

　　Translated with DeepL.com (free version)