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Differences and similarities between extruders and injection molding machines

Whether it is a plasticizing extruder or a plastic processing machine formed into a certain shape. Although they have similar functions, differences between them still exist. Structure, screw and barrel are used for machine plasticization and conveying of plastics. However, for extruders, the screw has a larger diameter and L/D ratio. Procedure, the extruder continuously extrudes plastic through the die to form products, such as plastic pipes, sheets, profiles and rods. Injection molding machines do not work continuously. Plastic will be injected into the closed mold cavity. When the cavity is filled, the machine will stop working and the plastic mold will be cooled and shaped. This machine will take the plastic mold out of the mold.

2021

05-17

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