公开(公告)号：US20020040077A1

公开(公告)日：2002-04-04

申请号：US09970423

申请日：2001-10-03

申请人： Hoeganaes Corporation

发明人： Francis G. Hanejko ,  George Ellis

IPC分类号： B05D003/02 ,  C08K003/00 ,  C08L063/00

CPC分类号： C23C26/00 ,  B22F1/02 ,  B22F2998/10 ,  B22F2999/00 ,  H01F1/26 ,  H01F41/0246 ,  Y10T428/2998 ,  B22F1/0096 ,  B22F1/0085

摘要： Methods of making and using annealable insulated metal-based powder particles are provided. The insulated metal-based powder particles are formed from metal-based core particles that are coated with an annealable insulating material. The annealable insulating material has at least one inorganic compound and at least one organic polymeric resin. The inorganic compound in the insulating material forms a nonporous insulating layer surrounding the metal-based core particles upon heating. The organic polymeric resin preferably aids in dispersing or binding the inorganic compound to the metal-based core particles prior to annealing. The insulated metal-based powder particles produced can be formed into core components that can be annealed to improve the magnetic performance of the core component. The core components produced are particularly useful under AC operating conditions of 500 Hz or lower.

摘要翻译： 提供了制造和使用可退火绝缘的金属基粉末颗粒的方法。 绝缘金属粉末颗粒由涂有可退火绝缘材料的金属基颗粒形成。 可退火的绝缘材料具有至少一种无机化合物和至少一种有机聚合物树脂。 绝缘材料中的无机化合物在加热时形成围绕金属基核颗粒的无孔绝缘层。 有机聚合物树脂优选在退火之前有助于将无机化合物分散或结合到金属基核颗粒上。 可以将所制造的绝缘金属粉末颗粒形成为能够进行退火以提高核心部件的磁性能的核心部件。 所生产的核心组件在500Hz或更低的AC工作条件下特别有用。