| 摘要 |
PURPOSE:To produce a sintered soft-magnetic material having high electric resistance value by incorporating specific percentages of chromium and silicon into iron. CONSTITUTION:An alloy powder, consisting of, by weight ratio, 5-30% chromium and the balance iron, an alloy powder, consisting of 8-45% silicon and the balance iron, and an iron powder are mixed, by which a raw material powder is prepared. If necessary, a lubricant is added to this raw material powder, and the resulting mixture is press-compacted, e.g. at about 500-700MPa, degreased in H2 at about 500-650 deg.C for about 0.5-1hr, and sintered in vacuum at about 1100-1200 deg.C for about 1-3hr. By this method, the sintered soft-magnetic material, having high electric resistance value, can be obtained. |
