Solidification Shrinkage Behavior of Ultra-Thick Slab in Continuous Casting Mould With Different Chamfering
LEI Song1,ZENG Shan1,HAN Zhi-wei1, 2,YAN Jian-wu1,FENG Ke1, 2,QING Shao-ping1
1. Continuous Casting Section, MCC-CISDI Engineering Co., Ltd., Chongqing 400013, China 2. National Engineering Research Center for Iron and Steel Making Plant Integration, Chongqing 401122, China
Abstract：To investigate the solidification shrinkage behavior of ultra-thick slab in the mould with different chamfering of the narrow face copper, the finite element models of two-dimensional transient thermo-mechanical coupled were set up by means of ABAQUS software. The temperature and stress distribution of slabs were calculated through the user subroutine. The effect of mould fluxes and air gap on heat transfer was taken into account comprehensively in the models. The numerical results show that: when the chamfering of mould narrow face copper is too large or too small, it is disadvantageous for the uniform distribution of the slab temperature. For the slab of 420mm in thickness, the fillet radius of 24mm makes the slab surface temperature distribution most uniform and the maximum plane principal stress distribution more reasonable, so that the corner transverse cracks will be greatly reduced.
雷松，曾珊，韩志伟 ，阎建武，冯科 ，青绍平. 不同倒角结晶器内特厚板坯的凝固收缩行为[J]. 中国钢铁期刊网, 2013, 32(2): 5-11.
LEI Song,ZENG Shan,HAN Zhi-wei, ,YAN Jian-wu,FENG Ke, ,QING Shao-ping. Solidification Shrinkage Behavior of Ultra-Thick Slab in Continuous Casting Mould With Different Chamfering. Chinese Journal of Iron and Steel, 2013, 32(2): 5-11.
2013, Vol. 32 
