MANUFACTURE OF ALLOY POWDER CONTAINING RARE EARTH METAL USING REDUCTION DIFFUSING METHOD

摘要

PURPOSE:To offer a method for obtaining magnetic alloy powder contg. rare earth metals excellent in magnetic properties by using a reduction diffusing method. CONSTITUTION:A mixture of metallic Ca powder, rare earth oxide powder and metallic raw material powder is applied with stress and is molded, and this mixture molded body is subjected to heating treatment in the atmosphere of an inert gas or vacuum. CaO by-produced at this time and Ca remaining in a reaction product are removed to obtain metallic grains, which are pulverized to manufacture alloy powder contg. rare earth metals.