Regeneration method of rare earth permanent magnet material
Title：
Regeneration method of rare earth permanent magnet material
Application Number：
 01136628
Application Date：
 2001/10/23
Announcement Date：
 2003/04/30
Pub. Date：
Publication Number：
 1414122
Announcement Number：
 1173051
Grant Date：
 2004-10-27
Granted Pub. Date：
 2004-10-27
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 B22F 9/04, C22B 7/00, H01F 1/053
Applicant(s)：
 Beijing Ciyuan Science & Technology Co., Ltd.
Inventor(s)：
 Jiang Zhongliang, Chen Xiuyun, Liu Haichen
Key Words：
 Regeneration method, rare earth, permanent magnet material
Abstract：
 A process for regenerating the leftover of permanent-magnet RE alloy includes such steps as removing impurities, washing, drying, treating in H2 gas, breaking, fine grinding, adding R-enriched alloy powder, die pressing in magnetic field ,vacuum sintering in protecting atmosphere, and heat treating. Its advantages are high efficiency and magnetic property, and low cost.
Claim：
Priority：
PCT：
LegalStatus：

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