公开(公告)号：US5217541A

公开(公告)日：1993-06-08

申请号：US752895

申请日：1991-08-26

申请人： Tsung-Shune Chin ,  Shiang-Jiun Heh ,  Ken-Der Lin

发明人： Tsung-Shune Chin ,  Shiang-Jiun Heh ,  Ken-Der Lin

IPC分类号： H01F1/057 ,  H01F1/059

CPC分类号： H01F1/057 ,  H01F1/059

摘要： A permanent magnet essentially consisting of in weight percent, 60% to 68% at least one transition element by weight, 30% to 38% at least one rare earth element by weight, 0.1% to 1.5% nitrogen by weight, and 0.8% to 1.5% boron by weight is disclosed. A method for producing the permanent magnet containing at least one rear element, at least one rare earth element, nitrogen and boron includes melting, cooling, milling, magnetizing, and compacting the transition element, the rare earth element and boron to form a green compact, and then sintering the green compact in nitrogen atmosphere having a constant partial pressure for 1 to several hours to form the permanent magnet.

摘要翻译： 一种永久磁铁，其主要由重量百分数，60％至68％的至少一种过渡元素，30％至38％的至少一种稀土元素，0.1重量％至1.5重量％的氮和0.8重量％ 公开了1.5重量％的硼。 一种含有至少一个后元件，至少一种稀土元素，氮和硼的永磁体的制造方法包括熔融，冷却，研磨，磁化和压实过渡元素，稀土元素和硼以形成生坯 ，然后在具有恒定分压的氮气气氛中烧结1〜数小时的生坯，形成永磁体。