Aimed at zinc ingots molds,the thermal and stress fields coupling analysis was utilized to analyze the effect law of casting process and casting mould configuration on temperature field and stress field of molds and casting,thus,the cause of hot cracking in the casting mould was analyzed.

Aiming at breakage of zinc ingot die caused by fatigue crack at corner,using FEM,the stress-field and its change rules,the displacement and its change rules of zinc ingot die in pouring the process of zinc ingot cast were analyzed,which could provide theory references for the design and manufacture of zinc ingot and aluminium ingot die.