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首页> 外文期刊>International Journal of Minerals,Metallurgy and Materials >Non-uniform heat transfer behavior during shell solidification in a wide and thick slab continuous casting mold
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Non-uniform heat transfer behavior during shell solidification in a wide and thick slab continuous casting mold

机译：宽厚板坯连铸结晶器壳体凝固过程中的不均匀传热行为

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摘要

By employing a two-dimensional transient thermo-mechanical coupled finite element model for simulating shell heat transfer behaviors within a slab continuous casting mold, we predicted the evolution of shell deformation and the thermal behaviors, including the mold flux film dynamical distribution, the air gap formation, as well as the shell temperature field and the growth of carbon steel solidification, in a 2120 mm x 266 mm slab continuous casting mold. The results show that the shell server deformation occurs in the off-corners in the middle and lower parts of the mold and thus causes the thick mold flux film and air gap to distribute primarily in the regions of 0-140 mm and 0-124 mm and 0-18 mm and 0-10 mm, respectively, from the corners of the wide and narrow faces of the shell under typical casting conditions. As a result, the hot spots, which result from the thick mold flux film filling the shell/mold gap, form in the regions of 20-100 mm from the corners of the wide and narrow faces of the shell and tend to expand as the shell moves downward.
机译：通过使用二维瞬态热力耦合有限元模型来模拟板坯连铸结晶器内的壳体传热行为，我们预测了壳体变形的演变和热行为，包括结晶器熔剂膜的动态分布，气隙在2120 mm x 266 mm的板坯连铸结晶器中形成，以及壳温度场和碳钢凝固的增长。结果表明，壳服务器变形发生在模具中下部的偏角处，从而导致厚的模具熔剂膜和气隙主要分布在0-140 mm和0-124 mm的区域中在典型的铸造条件下，分别从壳体的宽面和窄面的拐角处分别获得0-18毫米和0-10毫米。结果，由厚的熔剂膜填充壳/模具间隙而引起的热点在距壳的宽面和窄面的拐角处20-100 mm的区域中形成，并随着温度的升高而扩大。外壳向下移动。

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