稀土硅铁合金的制备

来源 :稀土 | 被引量 : 0次 | 上传用户:aa121222
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
美国生产的稀土主要用于合金钢中,以混合稀土金属或稀土—铁—硅合金添加,作夹杂物化学变性和形态变性用。稀土—铁—硅合金由稀土氧化物、氧化硅和铁的混合物在在1930℃以上碳热还原商业生产。商业合金含稀土30~50Wf%,回收率通常小于60%。为了改进制备工艺,达到最大的处理效果,美国矿物局研究了改善制备稀土—铁—硅合金的方法。 The rare earths produced in the United States are mainly used in alloy steel to be added as a mixed rare earth metal or rare earth-iron-silicon alloy for inclusion chemical modification and morphological modification. The rare earth-iron-silicon alloy is commercially produced from a mixture of a rare earth oxide, silicon oxide and iron at a carbothermal reduction above 1930 ° C. Commercial alloys containing rare earth 30 ~ 50Wf%, the recovery rate is usually less than 60%. In order to improve the preparation process, to achieve the maximum treatment effect, the US Bureau of Mines to study the preparation of rare earth - iron - silicon alloy.
其他文献