METHOD FOR MANUFACTURING COMPOUND SOFT MAGNETIC MATERIAL HAVING HIGH STRENGTH AND HIGH SPECIFIC RESISTANCE

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a compound soft magnetic material having high strength and high specific resistance.;SOLUTION: In the method for manufacturing a compound soft magnetic material having high strength and high specific resistance, raw mixed powder having the composition consisting of, by mass, 0.05-1% polyimide resin powder of mean particle size of 1-100 μm, 0.002-0.1% fine amide-based wax powder of mean particle size of 1-20 μm and the balance insulating film covered soft magnetic powder with an insulating film deposited on the surface of the soft magnetic powder is heated to the temperature of 60-110°C. The heated raw mixed powder is filled in a die heated to the temperature of 100-150°C, and compacted at the compaction pressure of 700-1,200 MPa, and the obtained molding is baked at the temperature of 225-300°C.;COPYRIGHT: (C)2005,JPO&NCIPI