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Coupling RFeB magnet and its manufacturing method 发明授权

2023-09-24 2520 643K 0

专利信息

申请日期 2025-06-28 申请号 JP2013208937
公开(公告)号 JP6331317B2 公开(公告)日 2018-05-30
公开国别 JP 申请人省市代码 全国
申请人 大同特殊鋼株式会社
简介 Provided is a combined type RFeB-based magnet, including : two or more unit magnets; and an interface material that bonds bonding surfaces of the unit magnets adjacent to each other, in which each of the unit magnets is an RFeB-based magnet containing a light rare earth element RL that is at least one element selected from the group consisting of Nd and Pr, Fe, and B, in which the interface material contains at least one compound selected from the group consisting of a carbide, a hydroxide, and an oxide of the light rare earth element RL, and in which the combined type RFeB-based magnet contains at least one element selected from the group consisting of Dy, Ho and Tb, and has a nonplanar surface.


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