Effect of electromagnetic force on melt induced by traveling magnetic field

来源期刊：中国有色金属学报(英文版)2010年第4期

论文作者：苏彦庆 徐严谨 赵雷 郭景杰 傅恒志

文章页码：662 - 667

Key words：electromagnetic force; traveling magnetic field; Ga-In-Sn melt; molten metal

Abstract:

A new apparatus was designed to measure the electromagnetic force and a computational study of the traveling magnetic field (TMF) and its application to the Ga-In-Sn melt (with low melting point), then the forces on Al, Mg, and Li melt, were simulated. The result show that the electromagnetic force on the melt increases linearly with the increasing length of the melt in the TMF. The TMF-induced Lorentz force increases with increasing frequency, and then decreases. The maximum value is obtained when the current frequency is 160 Hz, over that frequency the force decreases rapidly. When the iron-core is activated, the force increases when the melt closes to the iron-core. The Lorentz forces have inversely-proportional relationships with the electrical resistivity, the df_x/dρ decreases and the df_y/dρ increases with the increasing electrical resistivity (df/dρ is the slope of the Lorentz force profile).

基金信息：the Program of Excellent Team in Harbin Institute of Technology, China