Abstract
Tundish performance with respect to inclusion separation has a strong influence on steel cleanliness and overall quality of continuously cast products. In the present study, experiments have been done in several 1/4 and 1/3 scale water models, (based on Froude Number criterion), as well as in a 12t real tundish to compare with model predictions. Residence time diagrams from water models and real systems are in very good agreement demonstrating that model predictions could be useful for continuous casting operation. The time for maximum absorbance, peak of the curve of a residence time diagram, was found to be and overall parameter regarding inclusion separation. Flow control devices such as dams, bales and porous plugs are effectively used as well as volume and shape of the tundish, in case of space limitations in many continuous casting machines in actual operation, specially for the case of billet casters.
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