Patent ID: 7179337
Filing Date: 2007-02-20
Classification: B22F,H01F

Abstract:
1. A method for producing a soft magnetic material, comprising: a surface oxidation step of forming oxide films on the surfaces of a soft magnetic powder, a step of preparing a molding compound of the soft magnetic powder for press-molding the soft magnetic powder, a press molding step of press-molding the molding compound of the soft magnetic powder into a predetermined shape, and a sintering step of sintering the press-molded soft magnetic powder by elevating the temperature of the periphery of the oxide film to near the melting point using a millimeter wave sintering apparatus or a discharge plasma sintering apparatus to produce a soft magnetic material, wherein a Cu base powder is added to a raw material of the soft magnetic powder and the added raw material is pulverized by a grinder in a step of preparing the soft magnetic powder.