Invention Grant
- Patent Title: Rare earth alloy binderless magnet and method for manufacture thereof
- Patent Title (中): 稀土合金无粘合剂磁体及其制造方法
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Application No.: US12063150Application Date: 2006-08-03
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Publication No.: US07938915B2Publication Date: 2011-05-10
- Inventor: Hirokazu Kanekiyo , Toshio Miyoshi , Katsunori Bekki , Ikuo Uemoto , Kazuo Ishikawa
- Applicant: Hirokazu Kanekiyo , Toshio Miyoshi , Katsunori Bekki , Ikuo Uemoto , Kazuo Ishikawa
- Applicant Address: JP Tokyo JP Osaka
- Assignee: Hitachi Metals, Ltd.,Nippon Kagaku Yakin Co., Ltd.
- Current Assignee: Hitachi Metals, Ltd.,Nippon Kagaku Yakin Co., Ltd.
- Current Assignee Address: JP Tokyo JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP2005-229555 20050808; JP2005-321452 20051104
- International Application: PCT/JP2006/315409 WO 20060803
- International Announcement: WO2007/018123 WO 20070215
- Main IPC: H01F1/053
- IPC: H01F1/053
Abstract:
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.
Public/Granted literature
- US20090127494A1 RARE EARTH ALLOY BINDERLESS MAGNET AND METHOD FOR MANUFACTURE THEREOF Public/Granted day:2009-05-21
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