发明名称 |
Method for manufacturing rare earth magnet and powder compacting apparatus |
摘要 |
A method and apparatus for manufacturing a rare earth magnet is disclosed. In a first step, a compact is produced by compacting rare earth alloy powder in a predetermined space in an orienting magnetic field. Next, a demagnetizing process is performed for the compact, and the compact is ejected from the predetermined space. Then, a additional demagnetizing process is performed for magnetic powder adhering to a surface of the compact by applying an magnetic field to the compact after the compact is ejected.
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申请公布号 |
US2002020470(A1) |
申请公布日期 |
2002.02.21 |
申请号 |
US20010891497 |
申请日期 |
2001.06.27 |
申请人 |
OKUMURA SHUHEI;NAKAMURA AKIRA |
发明人 |
OKUMURA SHUHEI;NAKAMURA AKIRA |
分类号 |
B22F1/00;B22F3/00;B22F3/02;B30B11/00;C22C1/04;C22C38/00;H01F1/053;H01F1/057;H01F1/08;H01F13/00;H01F41/02;(IPC1-7):B22F7/00 |
主分类号 |
B22F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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