- 专利标题: Processing of anisotropic permanent magnet without magnetic field
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申请号: US16746116申请日: 2020-01-17
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公开(公告)号: US11948733B2公开(公告)日: 2024-04-02
- 发明人: Wanfeng Li , Chuanbing Rong , Franco Leonardi , Michael W. Degner
- 申请人: FORD GLOBAL TECHNOLOGIES, LLC
- 申请人地址: US MI Dearborn
- 专利权人: FORD GLOBAL TECHNOLOGIES, LLC
- 当前专利权人: FORD GLOBAL TECHNOLOGIES, LLC
- 当前专利权人地址: US MI Dearborn
- 代理机构: Brooks Kushman P.C.
- 代理商 David B. Kelley
- 主分类号: H01F41/02
- IPC分类号: H01F41/02 ; H01F1/055 ; H01F1/057 ; H01F1/059
摘要:
A method of processing an anisotropic permanent magnet includes forming anisotropic flakes from a hulk magnet alloy, each of the anisotropic flakes having an easy magnetization direction with respect to a surface of the flake and combining the anisotropic flakes with a binder to form a mixture. The method further includes extruding or rolling the mixture without applying a magnetic field such that the easy magnetization directions of the anisotropic flakes align to form one or more layers having a magnetization direction aligned with the easy magnetization directions of the anisotropic flakes, and producing the anisotropic permanent magnet from the layers having the magnetization direction such that the anisotropic permanent magnet has a magnetization with a specific orientation.
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