MANUFACTURING METHOD FOR ALLOY THIN STRIP CONTAINING RARE EARTH, ALLOY THIN STRIP FOR RARE EARTH MAGNET, ALLOY POWDER FOR RARE EARTH SINTERED MAGNET, RARE EARTH SINTERED MAGNET, ALLOY POWDER FOR BONDED MAGNET, AND BONDED MAGNET

摘要

PROBLEM TO BE SOLVED: To provide a rare earth magnet which has an improved homogeneity in the distribution of R-rich phase in a magnet and excellent magnetic properties, by manufacturing an alloy ingot with a microstructure excellent in homogeneity through effectively suppressing generation of fine R-rich phase region in a R-T-B type alloy ingot represented by Nd-Fe-B type alloy.;SOLUTION: In the manufacturing method of the alloy thin strip containing rare earth by strip casting method, fine powder made of a lower heat conductive material than the roll base material is applied on the surface of rotary roll for casting.;COPYRIGHT: (C)2005,JPO&NCIPI