Numerical Simulation on Heat Transfer Phenomena in the Mold of a Slab Continuous Casting

摘要：

　　During the continuous casting of steel,the heat transfer phenomena in the mold are crucial but complex.The meniscus solidification has a direct effect on the surface quality of the solidified steel slab,especially the subsurface hooks which can capture inclusions and bubbles.In the current paper,a model was developed to better understand the heat transfer in the mold.The fluid flow of the molten steel in the mold,the heat transfer from the molten steel to the cooling water in the copper plate of the mold and the shrinkage of the steel shell were considered.The temperature of mold copper plate and steel and the shell thickness at different casting conditions were calculated.The depth of the hooks forming at the meniscus was etched and measured.A lower flow rate of the cooling water in the mold favored a thinner solidified shell,a higher shell temperature and a higher mold temperature.The cooling intensity of the mold had a great effect on the size of hooks.

关键词： numerical simulation heat transfer continuous casting subsurface hook shell thickness

作者: ZHANG Xubin ZHANG Lifeng WANG Hao YANG Wen

作者单位: School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beij Shougang Jingtang Iron & Steel Co.,Ltd.,Tangshan 063500,Hebei,China

会议类型: 国际会议

会议名称: STEELSIM2017(第七届冶金过程及钢铁材料模拟及仿真国际会议)

会议地点: 青岛

会议语种:英文

页码: 283-286

在线出版日期: 2017-08-16（万方平台首次上网日期，不代表论文的发表时间）