沟槽结晶器初生坯壳热力耦合模拟研究

张立夫;沈明钢;苗信成;许海亮;陈志威

钢铁 ›› 2008, Vol. 43 ›› Issue (6) : 35-0.

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钢铁 ›› 2008, Vol. 43 ›› Issue (6) : 35-0.
炼钢

沟槽结晶器初生坯壳热力耦合模拟研究

  • 张立夫,沈明钢,苗信成,许海亮,陈志威
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ThermoMechanical Coupled Simulation of Initial Shell Formation in Grooved Mold of Slab Caster

  • 张立夫,沈明钢,苗信成,许海亮,陈志威
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摘要

针对钢在板坯连铸结晶器内的凝固过程,建立二维完全热力耦合有限元分析模型。应用Marc软件在计算机上运行求解,模拟在结晶器铜板内壁划分不同间距纵向沟槽时的铸坯形成过程,研究划分沟槽对坯壳形成过程的影响。结果表明:沟槽可改善结晶器铜板与坯壳间传热,有利于坯壳的均匀形成,削弱偏角区应力集中,降低裂纹发生可能性。

Abstract

To describe the solidification in caster mold, a twodimensional fully thermomechanical coupled finite element model was established. The model is solved with MSC Marc software. The solidification of slab in the molds with longitudinal parallel grooves separated by different intervals on the inner surface was simulated.The influence of grooves on the solidification of slab was studied. The results show that heat transfer between mold and initial solidified shell is improved by grooves. So grooving is beneficial to the uniform shell growth, and reduction of stress concentration and cracking.

关键词

连铸 / 数值模拟 / 沟槽结晶器

Key words

continuous casting / numerical simulation / grooved mold

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张立夫, 沈明钢, 苗信成, . 沟槽结晶器初生坯壳热力耦合模拟研究[J]. 钢铁, 2008, 43(6): 35-0
ZHANG Lifu, SHEN Minggang, MIAO Xincheng, et al. ThermoMechanical Coupled Simulation of Initial Shell Formation in Grooved Mold of Slab Caster[J]. Iron and Steel, 2008, 43(6): 35-0

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