ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Mathematical Models for Near Net Shape Casting Processes
Pedro Q. NettoRoberto P. TavaresRoderick I. L. Guthrie
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1996 Volume 36 Issue Suppl Pages S175-S178


A three-dimensional fully coupled turbulent fluid flow, heat transfer and solidification model for a twin-roll caster of steel has been developed. The model enables different metal delivery configurations and their effect on solid shell thicknesses to be evaluated. A typical tubular nozzle with horizontal outlets directed towards the side dams, as well as a vertical slot nozzle, have been simulated. The results show that the tubular nozzle leads to a non-uniform thickness of the twin solidifying shells along the width of the rolls. These results are in agreement with measurements of heat fluxes to the roll surfaces. A similar model has been constructed for a horizontal single belt caster with extended nozzle delivery systems, with and without flow modifiers. It is shown that the flow modifier has a positive effect on the flow patterns and on steel shell formation.

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