COMPOSITE MAGNETIC MATERIAL AND MANUFACTURING METHOD THEREOF

摘要

Provided is a composite magnetic material which provides superior magnetic properties such as magnetic permeability and core loss, and practical strength, and a manufacturing method for a composite magnetic material which improves the moldability of the dust core and lowers manufacturing costs. A composite magnetic material for an inductor which combines soft magnetic metal particles with a non-magnetic material and a manufacturing method thereof, wherein a first binder composed of a non-magnetic material is mixed at a specific ratio in soft magnetic metal particles; the mixture is molded into the desired shape; the molded body is heat treated under specified conditions; and a second binder composed of one or two or more materials selected from the group composed of silicone resin, organic resin, and water glass is impregnated under the specified conditions into the molded body after the heat treatment.