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Dents are caused by local internal shrinkage after the gate is sealed or due to insufficient injection. Depression or micro-depression on the surface of injection
Due to the high light transmittance of transparent plastics, the surface quality of plastic products must be strictly required, and there must be no markings,
Plastic varieties: During the molding process of thermoplastics, there are volume changes caused by crystallization, strong internal stress, large residual stress frozen in the plastic
Hardness is the main factor affecting wear resistance. Generally speaking, the higher the hardness of the mold parts, the smaller the wear and the better
Injection molding: also known as injection molding, its principle is to add granular or powdered raw materials into the hopper of the injection machine. The
Injection molded parts dents are caused by shrinkage depressions caused by the cooling and hardening of the plastic, and mainly appear in thick wall positions,
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