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The concept of precision injection molding is mainly different from "conventional injection molding". It is based on the rapid development of polymer materials, and uses precise plastic parts to replace high-precision metal parts in the instrument and electronics field.
Injection molding is a method to obtain molded products by injecting plastic materials molten by heat into a mold, and then cooling and solidifying them. The method is suitable for the mass production of products with complicated shapes, and takes a large part in the area of plastic processing.
The process is divided into three steps: injection, blowing and ejection. The injection blow moulding machine is based on an extruder barrel and screw assembly which melts the polymer. The molten polymer is fed into a hot runner manifold where it is injected through nozzles into a heated cavity and core pin.