Effect of Traveling Magnetic Field on Mould-Filling Length of the A357 Melt during Casting Thin Walled Plate

摘要

In order to improve the mould filling ability, the method for production of thin-walled castings in the traveling magnetic field was applied. The relationship between magnetic field density and input voltage as well as distance was investigated, and the mould filling length of A357 melt has been studied. The electromagnetic forces applied on the melt were also analyzed. The result shows that the mould-filling length of the melt increase rapidly with the increase of magnetic flux density. The mould filling lengths in gypsum upper mould and magnetic material upper mould were compared from the standpoint of application. It demonstrated that the steel upper mould is superior to gypsum mould.