There are many types of plastic molds, how are they classified?

There are many types of plastic molds, how are they classified?

(1) Injection molding is to add plastic 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. Due to physical and chemical effects, the hardening and shaping become injection molded products.

(2) Compression molding, commonly known as compression molding, is one of the earliest methods of molding plastic parts. Compression molding is to add plastic directly into an open mold cavity with a certain temperature, and then close the mold. Under the action of heat and pressure, the plastic melts and becomes a fluid state. Due to physical and chemical effects, the plastic is hardened into a plastic part with a certain shape and size that remains unchanged at room temperature.

(3) Extrusion molding is to make the plastic in a viscous flow state pass through a die with a specific cross-sectional shape under high temperature and a certain pressure, and then shape it into a continuous profile of the desired cross-sectional shape at a lower temperature.