发明授权
- 专利标题： Rare earth alloy binderless magnet and method for manufacture thereof
- 专利标题（中）： 稀土合金无粘合剂磁体及其制造方法
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申请号： US12063150申请日： 2006-08-03
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公开(公告)号： US07938915B2公开(公告)日： 2011-05-10
- 发明人: Hirokazu Kanekiyo , Toshio Miyoshi , Katsunori Bekki , Ikuo Uemoto , Kazuo Ishikawa
- 申请人： Hirokazu Kanekiyo , Toshio Miyoshi , Katsunori Bekki , Ikuo Uemoto , Kazuo Ishikawa
- 申请人地址： JP Tokyo JP Osaka
- 专利权人： Hitachi Metals, Ltd.,Nippon Kagaku Yakin Co., Ltd.
- 当前专利权人： Hitachi Metals, Ltd.,Nippon Kagaku Yakin Co., Ltd.
- 当前专利权人地址： JP Tokyo JP Osaka
- 代理机构： Keating & Bennett, LLP
- 优先权： JP2005-229555 20050808; JP2005-321452 20051104
- 国际申请： PCT/JP2006/315409 WO 20060803
- 国际公布： WO2007/018123 WO 20070215
- 主分类号： H01F1/053
- IPC分类号： H01F1/053
摘要：
A method for producing a rare-earth alloy based binderless magnet according to the present invention includes the steps of: (A) providing a rapidly solidified rare-earth alloy magnetic powder; and (B) compressing and compacting the rapidly solidified rare-earth alloy magnetic powder by a cold process without using a resin binder, thereby obtaining a compressed compact, 70 vol % to 95 vol % of which is the rapidly solidified rare-earth alloy magnetic powder.
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