Method of producing corrosion resistant magnet powder, and product produced by the same method
申请人:Sumitomo Metal Mining Co., Ltd.
公开号:EP1197975A1
公开(公告)日:2002-04-17
The objects of the present invention are to provide a method of producing highly weather-resistant iron-based magnet powder containing a rare-earth element, particularly characterized by high coercive force in a practically important humid atmosphere, highly weather-resistant magnet powder produced by the same method, resin composition containing the same powder for bonded magnets, and bonded magnet containing the same powder.
The present invention provides a method of producing a magnet powder by crushing an iron-based magnet powder containing a rare-earth element in an organic solvent, wherein phosphoric acid is added to the solvent in which the powder is crushed.
本发明的目的是提供一种生产含有稀土元素的高耐候性铁基磁铁粉末的方法,特别是在实际上重要的潮湿气氛中具有高矫顽力的特点;用同样方法生产的高耐候性磁铁粉末;含有同样粉末的用于粘结磁铁的树脂组合物;以及含有同样粉末的粘结磁铁。
本发明提供了一种通过在有机溶剂中粉碎含有稀土元素的铁基磁铁粉末来生产磁铁粉末的方法,其中在粉碎粉末的溶剂中添加了磷酸。