发明名称 Method for manufacturing magnetic metal powder, and magnetic metal powder
摘要 A method for manufacturing magnetic metal powder is provided. In the method, a powdered magnetic metal oxide is supplied to a heat treatment furnace with a carrier gas composed of a reducing gas. The heat treatment furnace is maintained at temperatures above a reducing action starting temperature for the powdered magnetic metal oxide and above a melting point of the magnetic metal in the powder. The powdered magnetic metal oxide is subject to a reducing process, and then magnetic metal particles, the resultant reduced product, is melted to form a melt. The melt is re-crystallized in a succeeding cooling step, to obtain single crystal magnetic metal power in substantially spherical form.
申请公布号 US6827758(B2) 申请公布日期 2004.12.07
申请号 US20020159953 申请日期 2002.05.29
申请人 TDK CORPORATION 发明人 TAKAYA MINORU;AKACHI YOSHIAKI;KOBUKE HISASHI;UEMATSU HIROYUKI
分类号 B22F9/22;B22F1/00;H01F1/06;H01F1/20;(IPC1-7):B22F9/30 主分类号 B22F9/22
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