Use of Driven Flow Caused by Traveling Magnetic Field to Eliminate Inclusions from Liquid Aluminum Alloy

被引：0
作者：
Zhao Chunhui [1 ]
Li Qiulin [1 ]
Liu Wei [2 ]
机构：
[1] Tsinghua Univ, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China
[2] Tsinghua Univ, Adv Mat Lab, Beijing 100084, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2012年 / 41卷
关键词：
metal purification; inclusion; elimination; TMF; driven flow; ELECTROMAGNETIC SEPARATION; NONMETALLIC INCLUSIONS; PARTICLES; FORCE;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to remove inclusions from aluminum alloy, the effect of a new application of traveling magnetic field (TMF) on metal purification was investigated, in experiments TMF was generated by means of alternating current passing through induction coils. The strength of TMF could be exactly controlled by adjusting the level of alternating current. In addition, primary silicon particles precipitating from the solidification process of hypereutectic Al-Si alloy were considered as inclusions. A series of experiments were performed to study the distribution of primary silicon particles in Al-Si alloy under the condition of TMF. The results indicate that primary silicon particles are eliminated effectively from aluminum alloy through forced flow driven by TMF. Moreover, the separating efficiency of primary silicon particles is improved with the increase of the electric current. Therefore it is proposed that forced flow driven by TMF could provide a new efficient method for metal purification.
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收藏
页码：573 / 576
页数：4
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