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About china custom injection molding companies

What is the injection molding forming principle?
The dried plastic particles enter the barrel of the molding machine through the hopper of the molding machine, and the plastic particles become molten under the joint action of the heating plate heating and the shear heat generated by the screw rotation, the molten plastic gathers at the head of the molding machine, and the metering screw stops Rotate, change to forward translation, extrude the plastic melt, the plastic enters the mold pouring system, and then flows to the mold forming cavity, through the heat conduction of the mold itself and the cooling system added to the mold to make the plastic cool and solidify, after the cooling is complete, open the mold, The ejection system of the molding machine ejects the product, and at the same time, the screw of the molding machine retreats to start the next plastic melting measurement.

What are the classifications of injection molds?
Classification of injection molds:
According to the molding process: hot work mold and cold work mold

According to molding materials: metal molds and non-metal molds

Divided by production volume: sample mold (simple mold) and mass production mold

Divided by mold material: soft mold and hard mold.

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