METHOD FOR MANUFACTURING DIE-CASTING DIE

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a die-casting die of high- strength capable of manufacturing a die-cast item having a superior surface state and further capable of reducing the number of finishing steps for the die-cast item. SOLUTION: As a raw material composition of die-casting sand for a die- casting die, some calcinated artificial ceramic particles and molten granulated artificial ceramic particles are utilized together, mixed and kneaded sand mixed with binder is formed into a die to attain a die-casting die.