Fe-based soft magnetic alloy powder coated with an insulating film and a method for producing the same

摘要

According to one aspect of the present invention, a method of manufacturing an Fe-based soft magnetic alloy powder coated with an insulating film is provided. According to an embodiment of the present invention, the manufacturing method comprises: heat-treating the Fe-based soft magnetic alloy powder having a surface coated with an insulating film at a first temperature; And quenching the Fe-based soft magnetic alloy powder to a second temperature. It includes. At this time, between the first temperature and the second temperature, there is a phase transition temperature (T