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A manufacturing method of a rare earth magnet and manufacturing device 发明授权

2023-02-27 1480 90K 0

专利信息

申请日期 2025-06-25 申请号 JP2004015743
公开(公告)号 JP4433282B2 公开(公告)日 2010-03-17
公开国别 JP 申请人省市代码 全国
申请人 TDK Corporation3067
简介 PROBLEM TO BE SOLVED : To provide a technology of sufficiently recovering a machining deterioration layer on the surface of a magnet by a practical and simple method. SOLUTION : A magnet element assembly is immersed in an alloy melt principally containing a rare-earth element. The magnet element assembly is a rare-earth sintered magnet such as an NdFeB group rare-earth sintered magnet. The magnet element assembly is advantageously machined to have a prescribed thickness, e.g., 2 mm thick or below by machining. The melting point of the allow melt is preferably 1, 000°C or below. Further, the alloy melt contains the rare-earth element at a rate of 50atom% content or over. COPYRIGHT : (C)2005, JPO&NCIPI


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