(1) Injection molding 　　The plastic is first added to the heating barrel of the injection machine. The plastic is heated and melted. Driven by the screw or plunger of the injection machine, it enters the mold cavity through the nozzle and the mold pouring system. It is hardened and shaped into injection molding due to physical and chemical effects. Products. Injection molding consists of a...

There are often gas generation in injection molds that may be related to the following: 　　Air in the pouring system and mold cavity. 　　Some raw materials contain moisture that has not been eliminated by drying, and they will vaporize into water vapor at high temperatures. 　　Because the temperature is too high during injection molding, some unstable plastics will decompose and generate gas....

There are many problems in the quality of the mold parts in the external processing. For the processing of the external processing parts, not only the processing price but also the processing quality should be considered. How to ensure the quality of processing while reducing costs is a problem that every external processing enterprise needs to pay attention to. Here is a detailed introduction...