发明申请
- 专利标题: RARE-EARTH IRON-BASED MAGNET WITH SELF-RECOVERABILITY
- 专利标题(中): 具有自恢复性的稀土基铁基磁铁
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申请号: US12706389申请日: 2010-02-16
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公开(公告)号: US20100219921A1公开(公告)日: 2010-09-02
- 发明人: Fumitoshi YAMASHITA , Osamu YAMADA , Shiho OHYA
- 申请人: Fumitoshi YAMASHITA , Osamu YAMADA , Shiho OHYA
- 申请人地址: JP Kitasaku-gun
- 专利权人: MINEBEA CO., LTD.
- 当前专利权人: MINEBEA CO., LTD.
- 当前专利权人地址: JP Kitasaku-gun
- 优先权: JP2009-044970 20090227
- 主分类号: H01F7/02
- IPC分类号: H01F7/02
摘要:
A rare-earth iron-based magnet with self-recoverability is provided and includes a plurality of segments, wherein the segments each include a matrix having a microstructure in which rare-earth iron-based aligned magnetic powders of at least one kind are solidified by a cross-linking reaction phase and also in which the cross-liking reaction phase and a viscous deformation phase resulting from on a viscosity flow are chemically bound to each other between the magnetic powders, and wherein while the inner and outer circumferential surfaces of the segments are constrained, the fracture surfaces of the segments, and also the segments on a needed-basis, are mutually aggregated and rigidified together by taking advantage of self-recovery function based on viscous deformation caused by heat and external force and also on cross-linking reaction.
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