CASTING DEVICE BY VACUUM PRESSURE REDUCING AND THE CASTING METHOD BY VACUUM PRESSURE REDUCING

摘要

PURPOSE: A vacuum decompression casting method and a device thereof are provided to make a vacuum space inside a mold. CONSTITUTION: A storing unit with an open upper part is formed. A shell core mold(20) is heated at 50 - 300°C and fillers(25) are inserted into the storing unit of a vacuum decompression unit(10) with an air intake path. The upper part of the storing unit is tightly sealed with vinyl, and a vacuum pump depressurizes the inner side of the storing unit so that molten metal is injected into the shell core mold.