(上海大学 上海市钢铁冶金重点实验室，上海 200072)
摘 要: 采用行波磁场进行了电磁连续净化铝合金液实验，并采用电磁净化金属熔体的轨线模型，对实验中的夹杂物去除率进行了理论预测。结果表明，含夹杂的铝合金液连续流经电磁力作用段时，夹杂物被阻隔，形成电磁过滤效应，而夹杂物聚集区域夹杂物面积分数趋于某一常数。轨线模型预测与实验结果吻合良好。
关键字: 电磁场； 铝合金液； 净化； 电磁过滤
aluminum base alloy melt by travelling magnetic field
（Shanghai Enhanced Laboratory of FerrousMetallurgy，
Shanghai University， Shanghai 200072, P.R.China）
Abstract:The experiment on continuously purifying of aluminum base alloy melt by travelling magnetic field was carried out. The trajectory model was used to calculate the inclusion removal efficiency. The results show that the inclusions in aluminum base alloy melt can be captured when the melt flows through the electromagnetic field， which is called “electromagnetic filtration”， and the superficial percent of the inclusions trend to some certain value. The calculated minimum diameter of thoroughly removed inclusions conforms to the observed one.
Key words: electromagnetic field; aluminum base alloy melt; purifying; electromagnetic filtration
