LAYERED MAGNETIC CORE AND METHOD FOR MANUFACTURING SAME

摘要

A method for manufacturing a magnetic core, provided with a step for manufacturing a magnetic core, and a layering step for obtaining a magnetic core shape after performing a processing step for forming a desired shape from a thin strip comprising an alloy composition and a heat-treatment step for depositing a bcc Fe crystal. Here, the alloy composition is Fe-B-Si-P-Cu-C having an amorphous phase as the main phase thereof, and the thin strip is heated in the heat-treatment step at a high temperature increase rate to a temperature higher than the crystallization temperature of the alloy composition.