Several Categories of Plastic Molds

1. Injection mold It is mainly used in the production of thermoplastic parts of a common molding mold, injection mold corresponding processing equipment is injection molding machine, plastic first in the bottom of the injection molding machine heating cylinder heat melt, and then in the injection molding machine screw or plunger push, through the injection molding machine nozzle and mold pouring system into the mold cavity, plastic cooling hardening molding, release products. 2. Extrusion mold A kind of mold used to form and produce continuous shape plastic products, also called extrusion molding head, widely used in pipe, bar, monofilament, sheet, film, wire and cable coating, profile processing.
3. High foaming polystyrene molding mold It is a kind of mold for molding foam packaging materials of various desired shapes with the application of flexible polystyrene (beaded material composed of polystyrene and blowing agent) raw materials. The principle is that the polystyrene can be steam formed in the mold, including two types of simple manual operation mold and hydraulic press straight-through foam mold, mainly used to produce industrial packaging products. The materials for making this mold are cast aluminum, stainless steel, bronze and so on. 4. Blister mold A kind of mold for some relatively simple plastic products formed with plastic plates and sheets as raw materials, the principle is to use vacuum blooming method or compressed air forming method to make the plastic plates and sheets fixed on the concave die or punch, deformed and stuck on the mold cavity under heating and softening to get the required molding products. Blister mold mainly used in the production of some daily necessities, food and toy packaging products.

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