发明名称 |
Method of producing highly weather-resistant magnet powder, and product produced by the same method |
摘要 |
The objects of the present invention are to provide a method of producing highly weather-resistant iron-based magnet powder containing a rare-earth element, particularly characterized by high coercive force in a practically important humid atmosphere, highly weather-resistant magnet powder produced by the same method, resin composition containing the same powder for bonded magnets, and bonded magnet containing the same powder. The present invention provides a method of producing a magnet powder by crushing an iron-based magnet powder containing a rare-earth element in an organic solvent, wherein phosphoric acid is added to the solvent in which the powder is crushed.
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申请公布号 |
US6638367(B2) |
申请公布日期 |
2003.10.28 |
申请号 |
US20010955335 |
申请日期 |
2001.09.19 |
申请人 |
SUMITOMO METAL MINING CO., LTD. |
发明人 |
OHMORI KENJI;OSAKO TOSHIYUKI;HASHIGUCHI KAYO;YOKOSAWA KOUICHI |
分类号 |
C08K3/10;B22F1/00;B22F1/02;B22F9/04;C08L101/00;C22C38/00;H01F1/057;H01F1/059;H01F1/06;H01F1/08;H01F41/02;(IPC1-7):H01F1/03;C22C22/07 |
主分类号 |
C08K3/10 |
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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