B - Operations – Transporting – 22 – F
Patent
B - Operations, Transporting
22
F
B22F 9/30 (2006.01) B22F 9/24 (2006.01) C22B 5/12 (2006.01) C30B 1/02 (2006.01) H01F 1/06 (2006.01) H01F 1/20 (2006.01)
Patent
CA 2387768
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.
Akachi Yoshiaki
Kobuke Hisashi
Takaya Minoru
Uematsu Hiroyuki
Riches Mckenzie & Herbert Llp
Tdk Corporation
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