How do aluminum alloy die casting parts crack.architectural sheet metal fabrication

　　Aluminum alloy die casting cracks is a headache, it not only reduces the quality of the die casting, but also affects the efficiency of the die casting, then, aluminum alloy die casting cracks how to solve?

　　Aluminum alloy die casting cracks are characterized by waves or linear lines on the surface, small and slender state, and there is a trend of continuous development under the action of external forces.

　　So what are the causes of cracks? The reasons are as follows: 1, the alloy contains too much impurities, reducing the plasticity of the alloy. 2, casting wall thickness, thin, shrinkage is hindered when there is a drastic change, sharp Angle displacement to form stress. 3, the mold cavity temperature is too low.

　　The methods to solve the crack are: 1. Control the composition of the alloy to prevent excessive impurity of the alloy material. 2, reduce the wall thickness difference. 3, improve the mold temperature, control the mold temperature, maintain the mold heat balance.

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