9th ECCC European Continuous Casting Conference – ECCC 2017

In actual steel continuous casting process, the spraying water in secondary cooling zone always distributes non-uniformly, especially across the width direction of the steel bloom/billet. However, it is generally assumed that the cooling pattern of secondary cooling zone is uniform in many traditional heat transfer models, which will surely result in obvious calculation errors. In this paper, differences of billet surface temperatures for 82B steel continuous casting billet with the cross section of 150mm×150mm are compared between uniform and non-uniform water distribution patterns in secondary cooling zone. On this basis, the water coverage ratio of 82B steel billet is changed to study the temperature variation. Relative results have shown that corner temperature is released and temperature gradient in width direction is lower when non-uniform water distribution pattern is adopted, variation of water coverage ratio results in similar effect in the secondary cooling process.