This article deals with the spout eyes developing, at the surface of a metal melt, in the ladle during argon stirring. Cold model experiments involving a mercury bath with an oil layer as slag and industrial experiments on a 350 t steel ladle have been carried out. The eye geometry as measured with a video technique is highly dynamic. The time average of the free surface area and the time fraction of complete coverage have been determined and are represented with dimensionless correlations.
Model for computation of macrosegregation in slabs due to bulging. Assumptions involved. Simplification for the case of no bulging. Introduction of a modified stream function for the mushy zone. Computation of macrosegregation profiles for various conditions.
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