Computer Simulation of Solidification Heat Transfer in Continuous Casting Bloom

摘要

In this paper, a computational simulation system for modeling the solidification heat transfer process in a continuous casting facility for bloom is discussed. High chromium alloy irons are chosen to research, e.g. T91. The numerical approximation of the model is finite difference method. The software is developed based on this model. This software can calculate the bloom surface and liquid core temperature, the horizontal section temperature, the solid shell thickness profile along the rates and the solid fraction. The results show that the present model is quite accurate to predict the temperature of bloom, and the casting speed has an effect on the liquid core length. The casting speed and initial temperature have an effect on the temperature distribution. Moreover, the results of the software can offer guidance to optimizing the secondary cooling water distribution and technological parameters.