METHOD FOR MANUFACTURING FE-BASED AMORPHOUS METAL POWDER AND METHOD FOR MANUFACTURING AMORPHOUS SOFT MAGNETIC CORES USING SAME

摘要

The invention provides a method for manufacturing an amorphous soft magnetic core using Fe-based amorphous metal powder having a superior direct current superimposition characteristic and good core loss characteristics by classifying amorphous metal powder obtained by crushing an amorphous ribbon manufactured by a Rapid Solidification Process (RSP) and then using an amorphous metal powder with a grain size distribution of 75-100 ㎛ : 10-85% by weight; 50-75 ㎛ : 10-70% by weight; and 5-50 ㎛ : 5-20% by weight.