METHOD FOR MANUFACTURING POWDER-COMPRESSED MOLDED BODY, AND POWDER-COMPRESSED MOLDED BODY

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a powder-compressed molded body, by which a powder-compressed molded body with low loss can be manufactured with high productivity.SOLUTION: A method for manufacturing a powder-compressed molded body includes a filling step, a pressurization step, and a take-out step, and these steps are repeatedly performed to manufacture a plurality of powder-compressed molded bodies 50. In the filling step, a cavity 40 made by a relatively movable columnar first punch and a cylindrical die 10 is filled with a coating soft magnetic iron-based powder consisting of a plurality of coating soft magnetic iron-based particles in which the outer periphery of each of soft magnetic iron-based particles is covered by an insulation coat. In the pressurization step, the coating soft magnetic iron-based powder in the cavity 40 is pressurized by the first punch and a columnar second punch to make the molded body 50. In the take-out step, the molded body 50 is taken out from the inside of the cavity 40. The die 10 is cooled at least in the midway of a process repeating the steps.