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POWDER FOR FORMING RARE EARTH MAGNET AND METHOD FOR MANUFACTURING RARE EARTH MAGNET WITHOUT JET PULV 发明申请

2023-11-27 2200 928K 0

专利信息

申请日期 2025-07-16 申请号 WOCN13086806
公开(公告)号 WO2014071873A1 公开(公告)日 2014-05-15
公开国别 WO 申请人省市代码 全国
申请人 XIAMEN TUNGSTEN CO LTD
简介 Disclosed are a powder for forming a rare earth magnet and a method for manufacturing a rare earth magnet without a jet pulverization process, the method comprising the following steps : 1) sheet casting : casting the molten raw material alloy of the rare earth magnet with a sheet casting process to obtain a quenched alloy having an average thickness of 0.2-0.4 mm; 2) hydrogen decrepitation : maintaining the quenched alloy under a hydrogen pressure of 0.01-1 MPa for 0.5-24 h. The present invention improves the manufacturing process prior to the jet pulverization, and omits the jet pulverization step, thus simplifying the process steps, effectively utilizing precious rare earth resource, and reducing production cost.


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