发明名称 |
PROCESS FOR PRODUCING SELF-ASSEMBLED RARE EARTH-IRON BONDED MAGNET |
摘要 |
<p>The present invention provides a method for manufacturing a self-organized rare earth-iron bonded magnet, including: a first step of covering a rare earth-iron magnet powder with oligomer or prepolymer in which one molecule includes at least two or more reactive ground substances to provide a surface-treated magnet powder; a second step of melting and kneading stretchable polymer and the surface-treated magnet powder to coarsely crush the resultant material to provide a granule; a third step of dry blending the granule with hardener to provide a compound; a fourth step of compressing the compound under temperature conditions by which the oligomer or prepolymer, the polymer, and the hardener are caused to melt and to flow to provide a green compact; a fifth step of causing the green compact to be a self-organized rare earth-iron bonded magnet by reacting the oligomer or prepolymer, and polymer with the hardener ; and a sixth step of stretching the bonded magnet to transform the shape to any of a circular-shape or a circular arc-like shape.</p> |
申请公布号 |
EP1752994(A1) |
申请公布日期 |
2007.02.14 |
申请号 |
EP20050743724 |
申请日期 |
2005.05.26 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YAMASHITA, FUMITOSHI |
分类号 |
B22F1/02;B22F1/00;B22F3/00;B22F3/02;C22C1/04;H01F1/053;H01F1/055;H01F1/057;H01F1/059;H01F1/08;H01F41/02;H02K1/02;H02K1/27;H02K15/03;H02K21/12 |
主分类号 |
B22F1/02 |
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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