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(1) Injection molding The plastic is first added to the heating barrel of the injection machine. The plastic is heated and melted. Under the push of the injection machine screw or plunger, the nozzle and the mold casting system enter the mold cavity, and the hardening and shaping become the injectio... read more
Hollow molding The tubular or sheet material obtained by extrusion or injection and still in a plasticized state is fixed in the molding die, and the compressed air is immediately introduced to force the material to expand and stick to the wall surface of the mold cavity. After cooling and setting, ... read more
The control of the raw materials of the mold is carried out in the following aspects: Macro inspection The chemical composition is decisive for ensuring the performance of the steel, but the composition is qualified, and the steel properties cannot be fully explained. Due to the uneven organization ... read more
Evaluation of annealed tissue The purpose of annealing is to reduce the hardness of the steel, to facilitate machining, and to prepare the tissue for subsequent heat treatment. The annealed structure of carbon tool steel is evaluated according to the GB1298 first-level rating chart. www.tzhdmj.com read more
Carbide inhomogeneity Cr12 type Leysite steel contains a large amount of eutectic carbides in the structure. Carbide inhomogeneity has a very important influence on the performance of use, so the distribution of carbides must be strictly controlled. All in all, because the production objects of the ... read more
It is a molding method in which a plastic in a viscous state is passed through a die having a specific sectional shape at a high temperature and a certain pressure, and then shaped into a continuous profile of a desired sectional shape at a lower temperature. The production process of extrusion mold... read more