Electromagnetic-thermal coupled simulation of levitation melting of metals

被引:30
作者
Kermanpur, A. [1 ]
Jafari, M. [1 ]
Vaghayenegar, M. [1 ]
机构
[1] Isfahan Univ Technol, Dept Mat Engn, Esfahan 8415683111, Iran
关键词
Electromagnetic levitation melting; Numerical simulation; Zn; GAS CONDENSATION METHOD; NANOCRYSTALLINE POWDERS; NANOPARTICLES; SHAPE;
D O I
10.1016/j.jmatprotec.2010.09.008
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A coupled-field electromagnetic-thermal simulation model was developed to design suitable induction coils for the electromagnetic levitation melting of metals. The model was validated against both analytical solution and experimental observations. Dependence of coil parameters and sample weight (size) on the sample position, temperature and lifting force exerted on sample were assessed. It was found that the cylindrical/fiat coils could provide more lifting force and temperature, compared to the conical ones. The more number of coil turns resulted in a higher temperature, but coil overheating may happen. The sample weight should be in a specific range for having a successful levitation process. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:222 / 229
页数:8
相关论文
共 27 条
[1]  
Aizawa T, 2001, IMPACT ENGINEERING AND APPLICATION, VOLS I AND II, P827
[2]  
ASAI S, 2007, MAGNETOHYDRODYNAMICS, V2, P1393
[3]   Equilibrium shape of a molten silicon drop in an electromagnetic levitator in microgravity environment [J].
Asakuma, Y ;
Hahn, SH ;
Sakai, Y ;
Tsukada, T ;
Hozawa, M ;
Matsumoto, T ;
Fujii, H ;
Nogi, K ;
Imaishi, N .
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2000, 31 (02) :327-329
[4]  
BAXTER WJ, 1992, Patent No. 5173124
[5]  
BIGOT J, 1993, ANN CHIM-SCI MAT, V18, P369
[6]   Modelling electromagnetically levitated liquid droplet oscillations [J].
Bojarevics, V ;
Pericleous, K .
ISIJ INTERNATIONAL, 2003, 43 (06) :890-898
[7]  
Brandes E.A., 1999, SMITHELLS METALS REF, V7th
[8]   Synthesis and structural analysis of aluminum nanocrystalline powders [J].
Champion, Y ;
Bigot, J .
NANOSTRUCTURED MATERIALS, 1998, 10 (07) :1097-1110
[9]  
DANTZIG JA, 1986, Patent No. 4612972
[10]   Synthesis of Ti50Ni50 alloy nanopowders synthesized by modified levitational gas condensation method [J].
Han, B. S. ;
Uhm, Y. R. ;
Lee, M. K. ;
Park, J. J. ;
Rhee, C. K. ;
Kim, G. M. .
NANOCOMPOSITES AND NANOPOROUS MATERIALS, 2007, 119 :263-+