specialty metal fabricators.How do die-casting manufacturers control the quality of zinc alloy die-casting castings

　　The evaluation of the quality of zinc alloy die castings by die casting manufacturers is based on three levels, and the evaluation of the quality of zinc alloy die castings reflects their lifespan.

　　These three levels are respectively the reflection of appearance quality, accuracy, and application quality. In terms of appearance, it is necessary to ensure the integrity and aesthetics of zinc alloy die castings. From casting production to sharpening, polishing, and polishing, the surface smoothness of the die castings should be well controlled, and excessive surface roughness should be controlled as much as possible. In the subsequent surface treatment process, defects such as bubbles and wave patterns should also be avoided, which may cause unsightly surface of the die castings. In terms of construction, it is necessary to ensure the alloy material composition, properties, and structural characteristics of the die-casting parts to avoid the problem of casting damage. The first step in mastering the usage characteristics and purposes of zinc alloy die castings during their service life is to use them correctly. Secondly, it is necessary to consider the requirements of the product and the wear resistance and corrosion resistance of the die castings. Finally, strict quality inspection should be carried out after the die-casting parts are formed to avoid the occurrence of defective zinc alloy die-casting parts.

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