公开(公告)号：US4933025A

公开(公告)日：1990-06-12

申请号：US415696

申请日：1989-10-02

申请人： Erwin A. Alson ,  Thomas H. VanSteenkiste

发明人： Erwin A. Alson ,  Thomas H. VanSteenkiste

IPC分类号： B22F1/00 ,  H01F1/057

CPC分类号： H01F1/0571 ,  B22F1/0081

摘要： A method for treating rare earth permanent magnetic material is disclosed. The treatment includes soaking ribbon rare earth permanent magnetic material consisting essentially of grains of the tetragonal crystal phase RE.sub.2 TM.sub.14 B where RE is neodymium and/or praseodymium or mixtures thereof with other rare earth elements and TM is iron or mixtures of iron and cobalt, cobalt in a soaking solution of either distilled water or phosphoric acid and manganese phosphate solution, draining off the soaking solution, rinsing with distilled water while agitating to separate and remove fine powdered magnetic material, and washing and drying the remaining powder or ribbons. The treated material is taken to substantial dryness before the material is incorporated into a permanent magnet.

摘要翻译： 公开了一种处理稀土永磁材料的方法。 该处理包括浸渍带状稀土永久磁性材料，其基本上由四方结晶相RE2TM14B的晶粒组成，其中RE是钕和/或镨或其与其它稀土元素的混合物，TM是铁或铁和钴的混合物，钴 将蒸馏水或磷酸和磷酸锰溶液浸泡溶液，排出浸泡溶液，同时用蒸馏水冲洗，同时搅拌分离并除去细粉状磁性材料，并洗涤和干燥剩余的粉末或带。 在将材料掺入永磁体之前，将处理过的材料取得相当大的干燥度。