发明名称 FEECRRCO TYPE MAGNET ALLOY
摘要 PURPOSE:To provide a magnet alloy having superior magnetic characteristics, easy to heat treat, and exhibiting high fluidity in a molten state by simultaneously adding a specified amt. of Nb and Si to a Fe-Cr-Co type alloy. CONSTITUTION:The magnet alloy consists of Cr 17-45%, Co 3-35%, Nb 0.05- 5.0%, Si 0.10-5.0% and the balance Fe. PREPARATION:An alloy of the above compsn. is refined in a high frequency furnace, and the resulting molten alloy with very high fluidity is cast into an ingot, which is hot rolled to 5mm thickness. The plate is then heated at a soln. heat treatment temp. for about 1hr to carry out soln. heat treatment followed by reheating, treatment in a field of 4000Oe for 1hr and slow cooling at a cooling rate of 100 deg.C/16h. Thus, a magnet alloy is obtd. having superior magnetic characteristics such as residual magnetic flux density, coercive force and max. energy product.
申请公布号 JPS5531131(A) 申请公布日期 1980.03.05
申请号 JP19780103409 申请日期 1978.08.25
申请人 HITACHI METALS LTD 发明人 IWATA MASAO;YOSHIZAWA HISAO;TANIGAWA SHIGEO;IGARASHI ZENJI
分类号 C22C38/00;C22C38/30;C22C38/34;H01F1/04 主分类号 C22C38/00
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