富铁相杂质形态对电磁净化铝熔体效果的影响  

Effects of the Shape of Fe-enrichment Phase on Purification of Liquid Al in Electromagnetic Field

作　　者：张磊[1] 焦万丽[1] 蔚海军[1] 姚广春[1] 

机构地区：[1]东北大学

出　　处：《特种铸造及有色合金》2005年第3期131-132,共2页Special Casting & Nonferrous Alloys

基　　金：国家重点基础研究发展规划项目 (G1 9990 6490 - 4 )

摘　　要：采用加入金属锰来改善铝熔体中富铁相杂质的形态 ,并研究了Mn的加入量对富铁相形态的影响 ,确定了当Mn和Fe的摩尔比为 1.4～ 1.5时 ,富铁相的形态变成了较规则的块状形态。并对不同Mn的加入量的铝合金进行了静态电磁净化试验 ,试验结果表明富铁相杂质的存在形态直接影响到净化效果 ,经过形态规则化的富铁相杂质净化效果有明显改善。Manganese was added into aluminum melt to improve the shape of iron-enrichment phase impurities.The effects of Mn addition on the shape of the Fe-enrichment phase were researched.It was confirmed that the iron-enrichment phase transformed into regular block-like shape with the ratio of Mn/Fe =1.4～1.5(molar ratio).The experimental results show that the shape of the Fe-enrichment phase has an obvious effect on the purification of aluminum melt with different Mn addition in static electromagnetic field,and the purification is improved with regular shape of Fe-enrichment phase.

关 键 词：富铁相 变形 净化 规则化 

分 类 号：TG292[金属学及工艺—铸造]