发明授权
US5221368A Method of obtaining a magnetic material of the rare earth/transition
metals/boron type in divided form for corrosion-resistant magnets
失效
用于耐腐蚀磁体的分离形式的稀土/过渡金属/硼原子的磁性材料的获得方法
- 专利标题： Method of obtaining a magnetic material of the rare earth/transition metals/boron type in divided form for corrosion-resistant magnets
- 专利标题（中）： 用于耐腐蚀磁体的分离形式的稀土/过渡金属/硼原子的磁性材料的获得方法
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申请号： US735893申请日： 1991-07-25
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公开(公告)号： US5221368A公开(公告)日： 1993-06-22
- 发明人: Armand Gabriel , Masato Sagawa , Philippe Tenaud , Pierre Turillon , Fernand Vial
- 申请人： Armand Gabriel , Masato Sagawa , Philippe Tenaud , Pierre Turillon , Fernand Vial
- 申请人地址： FRX Saint-Pierre D'Allevard
- 专利权人： Aimants Ugimag
- 当前专利权人： Aimants Ugimag
- 当前专利权人地址： FRX Saint-Pierre D'Allevard
- 优先权： FRX9009722 19900725
- 主分类号： C22C33/02
- IPC分类号： C22C33/02 ; B22F9/02 ; C22C38/00 ; H01F1/053 ; H01F1/057 ; H01F1/06
摘要：
The invention relates to a method of obtaining friable and relatively inert TR Fe B type magnetic materials in divided form which lead to magnets having improved corrosion resistance. This method involves treating the material in an atmosphere containing (or capable of containing) hydrogen under the following conditions of absolute pressure (P) and of temperature (T.degree. C.): if P.ltoreq.Pa, 250 Pa, 250+100 log (P/Pa)
公开/授权文献
- US5914317A B1k chain of laminin and methods of use 公开/授权日：1999-06-22
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