METHOD AND APPARATUS FOR PRODUCING GRANULATED POWDER OF RARE EARTH ALLOY AND METHOD FOR PRODUCING RARE EARTH ALLOY SINTERED COMPACT

摘要

A method for producing a granulated powder of a rare earth alloy which comprises a step of providing a rare earth alloy powder, a step of imparting remanent magnetization to the powder, and a step of granulating the powder by the utilization of the cohesion due to the remanent magnetization of the powder. In the method, the addition of a granulating agent can be frequently omitted, since the cohesion due to the remanent magnetization of the powder is utilized.