amandaxue@chinarigging.net +86-532-83531978
Cause analysis of cracks in die castings

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.