SOFT MAGNETIC SINTERED IRON-SILICON MATERIAL AND ITS MANUFACTURE

摘要

PURPOSE:To obtain a soft magnetic sintered material having superior magnetic characteristics by compacting and CONSTITUTION:Atomized Fe-Si alloy powder having <=325 mesh particle size and <=0.05% O2 content is compacted and sintered to obtain a sintered material having <=0.7% O2 content. This sintered material is subjected to hot hydrostatic pressing. Gas atomized powder is preferably used as the atomized powder. The resulting soft magnetic sintered Fe-Si material has superior magnetic characteristics such as coercive force and maximum magnetic permeability.