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Yoke-integrated magnet 发明申请

2023-12-05 2370 377K 0

专利信息

申请日期 2025-07-31 申请号 US12230821
公开(公告)号 US20090079527A1 公开(公告)日 2009-03-26
公开国别 US 申请人省市代码 全国
申请人 Takaaki Noda; Fumiaki Hasegawa; Tatsuhiko Kurata; Kazuya Mizuno
简介 The present invention provides a yoke-integrated magnet, including : a ring-shaped bond magnet containing a rare earth iron-based alloy magnetic powder and a synthetic resin binder; and a ring-shaped back yoke provided on an inner periphery or an outer periphery of the bond magnet to be integral with the bond magnet, in which at least a surface of the bond magnet at which the bond magnet does not contact with the back yoke is covered with an injection molding layer of a thermoplastic resin which does not contain tin. The yoke-integrated magnet of the invention is excellent in corrosion resistance and dimension accuracy and is free from the risk of contamination with tin.


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