PRODUCTION METHOD FOR RARE-EARTH MAGNET

摘要

The present invention provides a production method for a rare-earth magnet wherein high magnetization is achieved by hot plastic working and a high coercive force is ensured at the same time. This production method is a method for producing an R-T-B type rare-earth magnet by performing hot plastic working after molding powders of an R-T-B type rare-earth alloy (R: rare earth element, T: Fe or part of Fe is substituted with Co), characterized in that prior to the molding, a metal that coexists with R and generates a liquid phase at a temperature lower than that of hot plastic working, or an alloy that generates a liquid phase at a temperature lower than that of hot plastic working, is added to mix with the powders of the R-T-B type rare-earth alloy.