| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust core of low loss which has high saturation magnetic flux density. SOLUTION: Amorphous soft magnetic alloy powder A and fine powder B of soft magnetic metal which are different in grain diameter is stirred and mixed in a condition that the mode of grain size distribution of the powder A is at least five times that of the powder B and the volume percentage of the powder B to the total sum of volumes of the powder A and powder B is at least 3 vol.% and at most 50 vol.%. After that, binder and lubricant are added, and pressure molding is performed by using a metal mold having a specified shape. |
