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论文类型：期刊论文

发表时间：2009-06-01

发表刊物：TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA

收录刊物：SCIE、EI、ISTIC

卷号：19

期号：3

页面范围：674-680

ISSN号：1003-6326

关键字：non-metallic particles; high frequency magnetic field; motion behavior; multi-pipe elimination

摘要：Non-metallic particles, especially alumina, are the main inclusions in aluminum and its alloys. Numerical simulation and the corresponding experiments were carried out to study the motion behavior of alumina particles in commercial pure aluminum under high frequency magnetic field. At the meantime, multi-pipe experiment was also done to discuss the prospect of continuous elimination of non-metallic particles under high frequency magnetic field. It is shown that: 1) results of numerical simulation are in good agreement with the experimental results, which certificates the rationality of the simulation model; 2) when the intensity of high frequency magnetic field is 0.06 T, the 30 mu m alumina particles in melt inner Could migrate to the edge and be removed within 2 s; 3) multi-pipe elimination of alumina particles under high frequency magnetic Field is also effective and has a good prospect in industrial application.