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Difference between die casting and die forging blank of vertical fire pump

What are the differences between the die casting parts of vertical fire pump and the blank of die casting die forging? Please see the knowledge analysis carefully prepared by Xiaobian for you. It will certainly help you.

One is from the processing requirements of the surface layer of the blank. For example, aluminum die castings contain silicon, and the surface layer of the blank produced by die casting process has micro pores, and the surface layer of this material will have "black spots" after anodizing treatment. Therefore, if the blank is required to be anodized, the blank will not be produced by conventional die casting process;

Second, die casting parts are generally "structural parts", while die casting die forgings are "functional parts". "Structural component" is compared with "functional component". The latter generally refers to the protection against impact, high temperature, pressure, intensity, surface treatment and heat treatment. Typical products are engine block, hub, piston, connecting rod, brake shoe, pneumatic or hydraulic valve body, etc. The former is such as door frame, instrument panel, hair idea blouse, etc;

The third is to judge from the metallographic structure. Die casting and die forging are very easy to distinguish in metallography. The former is dendritic as cast structure, and the latter is forged structure with average broken grains;

Fourth, judging from the material composition. As the die castings are generally forged alloys, in view of other alloy names, they are often produced by die casting and die forging process. Related products:

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