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Pet preform mold is a molding method in which the molten material is injected into the mold by the injection machine to make the mold, and then the mold is put into the blow mold while it is hot, and air is injected to make the mold blow.
An integral part of pet preform mold：
The injection mould is mainly composed of pouring system, forming parts and structural parts. Among them, the pouring system and forming parts are the parts in direct contact with plastic, which are the most complex, the most varied and the parts requiring the highest processing accuracy.
The principle of pet preform mould：
The powder or granular plastic is sent from the hopper of the injection machine into the heated cylinder; After heating, melting and plasticizing, with the thrust of the plunger or screw, the material will be compressed and moved forward, and injected into the closed mold cavity with low temperature at a fast speed through the nozzle at the front of the barrel; After a certain period of cooling finalize, open the mold is ready to produce products.
Advantages of pet preform mold：
Pet preform will largely determine the quality of plastic bottles, the importance of plastic bottles is self-evident. The functions of the injection molding machine mainly include: can install t