PRECISION CASTING METHOD AND MOLD FOR PRECISION CASTING

摘要

PROBLEM TO BE SOLVED: To dispense with waste of preheating a mold by performing the preheating of the mold in a vacuum-melting furnace, and to improve the safety by eliminating a carrying work of lifting the mold by a worker. SOLUTION: Molten metal 9 is poured into the ceramic mold 1A after heating the mold 1A having electric conductivity by arranging a high frequency induction heating coil 12 in the vacuum-melting furnace 6. Therefore, the waste of preheating the mold 1A is eliminated by performing the preheating of the mold 1A in the vacuum-melting furnace 6 and also, the safety can be improved by eliminating the carry of the mold 1A. COPYRIGHT: (C)2004,JPO