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Theoretical Analysis for the Motion and Temperature of Melt Droplets in Spray Degassing Process

R.Z. Wu , Z.K. Qu , B.D. Sun , D. Shu , J. Wang , null , null , null , null , null , null , null , null , null , null , null , null

金属学报(英文版)

The motion of melt droplets in spray degassing process was analyzed theoretically. The height of the treatment tank in spray degassing process could be determined by the results of theoretical calculation of motion of melt droplets. To know whether the melt droplets would solidify during spraying process, the balance temperature of melt droplets was also theoretically analyzed. Then proof experiments for theoretical results about temperature of melt droplets were carried. In comparison, the experimental results were nearly similar to the calculation results.

关键词: spray degassing , null

ELECTROMAGNETIC FIELD REMOVE INCLUSIONS FROM ALUMINUM MELT IN ELECTROMAGNETIC FIELD

T.X. Li , Z.M. Xu , B.D. Sun , D. Shu and Y.H. Zhou (School of Materials Science and Engineering , Shanghai Jiao Tong University , Shanghai 200030 , China)

金属学报(英文版)

Electromagnetic separation of non-metallic inclusions from Al-Si melt is studied by theoretical analysis and experiments on self-designed electromagnetic separation apparatus. Metallographs and LECO Image Analysis System were used to analyze the content of alumina in aluminum alloy before and after electromagnetic separation. It is seen that removal effciency increases with the increase of electromagnetic force (EMF) and diameter of inclusion particles while decreases with the increase of melt velocity and height of separator. All alumina particles with diamete of 14μm have been removed successfully from the melt.

关键词: aluminum melt , null , null , null

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