Abstract
The influence of electromagnetic field on macrosegregation of continuous casting aluminum alloy is studied in this paper. 7075 aluminum alloy ingot of 200-mm diameter is produced by electromagnetic casting process; intensity of the coil current is varied from 100 to 600 A, and frequency is from 10 to 100 Hz. Variation of solute content along the radius of ingot is examined by means of chemical analysis. The results show that electromagnetic casting process can effectively reduce macrosegregation, and electromagnetic frequency has a great influence on solute distribution along the radius of ingot. When frequency is 30 Hz, macrosegregation is eliminated completely.
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