发明授权
- 专利标题： Process for producing magnetic materials
- 专利标题（中）： 磁性材料制造工艺
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申请号： US532471申请日： 1983-09-15
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公开(公告)号： US4601875A公开(公告)日： 1986-07-22
- 发明人: Hitoshi Yamamoto , Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
- 申请人： Hitoshi Yamamoto , Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
- 申请人地址： JPX Osaka
- 专利权人： Sumitomo Special Metals Co., Ltd.
- 当前专利权人： Sumitomo Special Metals Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX58-90801 19830525; JPX58-90802 19830525; JPX58-92237 19830527; JPX58-92238 19830527; JPX58-161626 19830902; JPX58-161627 19830902
- 主分类号： C22C1/04
- IPC分类号： C22C1/04 ; H01F1/057 ; B22F3/16 ; C22C33/02 ; C22C38/32
摘要：
Permanent magnetic materials of the Fe-B-R type are produced by:preparing an metallic powder having a mean particle size of 0.3-80 microns and a composition of, by atomic percent, 8-30% R (rare earth elements), 2-28% B, and the balance Fe, compacting, sintering at a temperature of 900-1200 degrees C., and aging at a temperature ranging from 350 degrees C. to the temperature for sintering. Co and additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) may be present.
公开/授权文献
- US5678696A Aluminum can recycling 公开/授权日：1997-10-21
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