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Cause analysis of cracks in die castings
Sep 14, 2017

(1) the content of iron in alloy is too high or the content of silicon is too low;

(2) the content of harmful impurities in the alloy is too high, which reduces the plasticity of the alloy;

(3) Al Si alloy: aluminum silicon copper alloy containing zinc or copper content is too high, aluminum magnesium alloy contains too much magnesium;

(4) die, especially core temperature is too low;

(5) the wall thickness of casting varies violently;

(6) die leaving time is too long;

(7) force is unequal when ejection.








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