METHOD FOR MANUFACTURING RARE-EARTH MAGNETS

文件类型：PDF文档
文件大小：1934K
The present invention provides a method for manufacturing rare-earth magnets which can manufacture a rare-earth magnet having an excellent magnetic property from magnetic powder prepared by a liquid rapid-quenching and even including a nanocrystalline substance and an amorphous substance as well. The method comprises : a first step of rapidly quenching a metal forging represented by a composition formula of (Rl)x(Rh)yTzBsMt (herein, R1 denotes one or more types of light rare-earth elements containing Y, Rh denotes a heavy rare-earth element containing at least one type of Dy and Tb, T denotes transition metals containing at least one type of Fe, Ni and Co, B denotes boron, M denotes at least one type of Ga, Al and Cu, and 27COPYRIGHT KIPO 2016