Dust Core and Method for Producing Same
    4.
    发明申请
    Dust Core and Method for Producing Same 有权
    粉尘芯和生产方法

    公开(公告)号:US20080231409A1

    公开(公告)日:2008-09-25

    申请号:US10597197

    申请日:2005-01-28

    IPC分类号: H01F27/255 H01F1/24 H01F41/02

    摘要: The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles.The powder core is equipped with a plurality of compound magnetic particles bonded to each other. Each of said plurality of composite magnetic particles includes: a metal magnetic particle 10; an insulative lower layer coating 20 surrounding a surface 10a of said metal magnetic particle 10; an upper layer coating 30 surrounding said lower layer coating 20 and containing silicon; and dispersed particles 50 containing a metal oxide compound and disposed in said lower layer coating 20 and/or said upper layer coating 30. A mean particle diameter R of the dispersed particles 50 meets the condition 10 nm

    摘要翻译: 本发明的目的是提供一种粉末芯及其制造方法,其具有耐热性优异的绝缘涂层,该涂层可以适当地限制颗粒之间的涡流的流动。 粉末芯配备有彼此结合的多个复合磁性颗粒。 所述多个复合磁性颗粒中的每一个包括:金属磁性颗粒10; 围绕所述金属磁性颗粒10的表面10a的绝缘性下层涂层20; 围绕所述下层涂层20并含有硅的上层涂层30; 和含有金属氧化物化合物的分散颗粒50,并设置在所述下层涂层20和/或上层涂层30中。分散颗粒50的平均粒径R满足条件10nm

    Process for producing soft magnetism material, soft magnetism material and powder magnetic core
    9.
    发明申请
    Process for producing soft magnetism material, soft magnetism material and powder magnetic core 有权
    软磁材料,软磁材料和粉末磁芯的制造方法

    公开(公告)号:US20070102066A1

    公开(公告)日:2007-05-10

    申请号:US10595314

    申请日:2004-10-01

    IPC分类号: H01F1/22

    摘要: A method for making soft magnetic material includes: a first heat treatment step applying a temperature of at least 400 deg C. and less than 900 deg C. to metal magnetic particles (10); a step for forming a plurality of compound magnetic particles (30) in which said metal magnetic particles (10) are surrounded by insulation film (20); and a step for forming a shaped body by compacting a plurality of compound magnetic particles (30). This provides a method for making soft magnetic material that provides desired magnetic properties.

    摘要翻译: 制造软磁性材料的方法包括:对金属磁性颗粒(10)施加至少400摄氏度且小于900摄氏度的温度的第一热处理步骤; 用于形成多个复合磁性颗粒(30)的步骤,其中所述金属磁性颗粒(10)被绝缘膜(20)包围; 以及通过压制多个复合磁性颗粒(30)形成成形体的步骤。 这提供了制造提供所需磁性的软磁性材料的方法。