Acta Metallurgica Sinica (English Letters) ›› 2007, Vol. 20 ›› Issue (3): 157-166 .

• Research Articles •     Next Articles

Modeling and Experimental Research of Four-Strand Low-Frequency Electromagnetic Casting Aluminum Alloy

J.C. Li, B.F. Wang, and J.Z. Cui   

  1. 东北大学材料电磁过程教育部重点实验室
  • Received:2006-05-12 Revised:2007-02-06 Online:2007-06-25 Published:2009-10-10

Abstract:

With the aid of ANSYS software, the effect of different mould external part materials on magnetic flux density in the aluminum melt and magnetic field interaction of four coils applied with same currents were investigated. Calculating results showed that magnetic flux density in the aluminum melt was greatly improved and the magnetic field interaction among different coils was decreased when external part of mould is made of soft magnetic material. Based on the finding, a four-strand low-frequency electromagnetic casting 6063 aluminum alloy experiment was carried out in the laboratory. The experiment showed that the surface of the billet was smooth and had no exudations and cold shuts, the as-cast microstructures were fine, uniform, equiaxed, net-globular or globular under low-frequency electromagnetic field. The microstructure becomes finer with increased current value.

Key words: low-frequency electromagnetic casting, finite element method