Abstract

Electromagnetic stirring can improve the refining effect of Al-Ti-B master alloys by removing slag from the melt. When alternating-current magnetic intensity is 2,400 G, slag is removed after the melt has been stirred for three minutes. The magnetic field not only causes the melt to circulate, but also produces the secondary flow 1 cm away from the crucible wall that is the primary cause of slag removal. An alternating-current magnetic field removes slag more efficiently than a direct-current magnetic field.

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