Solidification Of Steel Billets In Continuous Casting

Abstract

For practical operation, it is necessary to know how the solidification of liquid steel progresses i.e. when and where a strand has completely solidified. Decisions on, the casting speed, the spray water flow rates and super-heating in the tundish can only be made with the knowledge of the solidification progress. This paper describes the theoretical phenomena of the cooling inside the mould and in the secondary cooling zone. To achieve this a mathematical unsteady, two dimensional heat conduction model has been developed for computing the temperature field and to study the effect of casting parameters on the metallurgical properties during bar solidification. The predicted solidified thickness profile in the mould region was compared with the measured profile and good agreement has been established.