| 简介 |
PROBLEM TO BE SOLVED : To provide a method for manufacturing magnet powder for rare earth bonded magnet, where Sm2Co17-based rare earth magnet powder which has high coercive force and high remanent magnetization and is superior in squareness property can be easily obtained. SOLUTION : In this method for manufacturing magnet powder for rare earth bonded magnet, molten metal of alloy for Sm2Co17-based rare earth magnet powder containing rare earth bonded magnet which contains Sm, Co, Fe, Cu and Zr is poured slantedly on a cooling roll which is rotated at a peripheral speed of 0.1-20 m/sec, and coagulated continuously in thickness of at most 1 mm, and an alloy thin belt is obtained. Continuously, solution heat treatment, aging heat treatment and grinding are performed at a temperature, e.g. at most alloy liquid phase appearing temperature. |
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