发明名称 |
UNIFIED JUNCTION STRUCTURE OF RARE-EARTH MAGNET AND METAL MATERIAL AND THE JOINTING METHOD |
摘要 |
A unified junction structure which is obtained by jointing a rare-earth magnet (2) and an alloy material which is a high melting point metal or a high specific strength material by hot isostatic pressing and by solid state diffusional joining and a structure which is obtained by placing a thin layer of the high melting point material between the rare-earth magnet (2) and the alloy materials (3 and 4) which are a high specific strength material and joining the layers and materials into one body. The hot isostatic pressing is such that an object prepared by stacking the rare-earth magnet and the high melting point metal layers is put into an enclosed high pressure vessel, a predetermined pressure is applied to the object at a predetermined temperature in an inert gas atmosphere for a predetermined time and the object is pressed uniformly isostatically by the synergistic effect of pressure and temperature and jointed integrally. By this method, a junction structure which can be integrally jointed with another metal member while the brittleness and the lack of rigidity, elasticity, etc. of the rare-earth magnet are covered and magnetic characteristics are not deteriorated. <IMAGE> |
申请公布号 |
EP0899049(B1) |
申请公布日期 |
2005.12.21 |
申请号 |
EP19980900442 |
申请日期 |
1998.01.20 |
申请人 |
KABUSHIKI KAISHA MEIDENSHA;NEOMAX CO., LTD. |
发明人 |
KOGA, MASAKI;SUZUKI, NOBUTAKA;SAITOH, HITOSHI;OYAMADA, KENSHIRO;TOKUHARA, KOKI;MINO, SHUJI;ISHIGAKI, NAOYUKI;YAMAMOTO, HITOSHI |
分类号 |
B23K20/02;B23K20/16;H01F1/055;H01F1/057;H01F41/02;H02K1/02;H02K1/27;H02K15/03;(IPC1-7):B23K20/00 |
主分类号 |
B23K20/02 |
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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