Plastic injection molding plastic classification injection mold, also known as injection mold. Injection molding is developed according to the principle of metal die casting. Firstly, granular or powdery plastic raw materials are added to the material Jane of the injection machine and heated and melted into viscous flow state. Then, driven by the plunger or screw, they are injected into the closed mold cavity through the nozzle at the front end of the barrel and the pouring system of the mold at a certain flow rate. After a certain time, the plastic is hardened and shaped in the mold, and then the mold is opened, The plasticized injection mold formed by stripping out from the mold is mainly used for the molding of thermoplastic parts. In recent years, the application of thermosetting plastic injection molding is also gradually increasing.
There are many classification methods of injection molds: according to the materials of plastics, they can be divided into thermoplastic injection molds and thermosetting injection molds; According to the type of injection machine used, it can be divided into injection mold for horizontal injection machine, injection mold for vertical injection machine and injection mold for angular injection machine; According to the channel form, it can be divided into ordinary channel injection mold and hot channel injection mold; According to its structural characteristics, it can be divided into single parting surface injection mold, double parting surface injection mold, inclined guide column (bending pin, inclined guide column, inclined slider, gear rack) lateral parting and core pulling injection core, injection mold with movable insert, fixed mold with ejector and automatic thread unloading injection mold.
