发明授权
US06599450B1 Method of producing recycled raw material powder for use in bonded magnet and method of recycling bonded magnet
有权
用于粘结磁体的再生原料粉末的制造方法以及再生粘结磁铁的方法
- 专利标题: Method of producing recycled raw material powder for use in bonded magnet and method of recycling bonded magnet
- 专利标题(中): 用于粘结磁体的再生原料粉末的制造方法以及再生粘结磁铁的方法
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申请号: US09696782申请日: 2000-10-26
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公开(公告)号: US06599450B1公开(公告)日: 2003-07-29
- 发明人: Takahiko Terada , Hiroshi Onishi , Yoshikazu Yamagata , Fumitoshi Yamashita
- 申请人: Takahiko Terada , Hiroshi Onishi , Yoshikazu Yamagata , Fumitoshi Yamashita
- 优先权: JP11-303635 19991026
- 主分类号: B29B902
- IPC分类号: B29B902
摘要:
A recycling method of producing magnetic material powder from bonded magnets which are produced by mixing magnetic material powder, as raw material powder, with a binder and subjecting a mixture to molding forming, has at least the steps of: (a) separating and collecting the magnetic material powder from the bonded magnets by removing all or a prescribed percentage of the binder contained in the magnets; (b) removing all or a prescribed percentage of the particles of diameter smaller than a prescribed particle diameter from the separated and collected magnetic material powder; and (c) mixing the magnetic material powder, from which the particles of diameter smaller than the prescribed one are removed, with a virgin magnetic material powder in a prescribed mixing ratio, so as to produce a new raw material powder.
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