230 mm x 1500 mm板坯连铸凝固过程传热与机械变形的有限元分析

特殊钢 ›› 2014, Vol. 35 ›› Issue (2): 5-8.

230 mm x 1500 mm板坯连铸凝固过程传热与机械变形的有限元分析

詹美珠

首钢京唐钢铁联合有限责任公司制造部，唐山 063200

收稿日期:2013-09-05 出版日期:2014-04-01 发布日期:2022-09-06
作者简介:詹美珠（1985-），女，助理工程师，2008年安徽工业大学（本科）毕业，炼钢技术研究

A Finite Element Analysis on Thermal Transformation and Thermal-Mechanical Deformation during 230 mm x 1500 mm Slab Casting and Solidifying Process

Zhan Meizhu

Manufacturing Department, Shougang Jingtang Iron and Steel United Co Ltd, Tangshan 063200

Received:2013-09-05 Published:2014-04-01 Online:2022-09-06

摘要/Abstract

摘要： 根据Q235B低碳钢230 mm×1500 mm板坯凝固和高温力学特性,建立铸坯凝固过程温度场和应力场热-力耦合有限元分析模型,采用有限元分析软件MSC.Marc进行耦合计算。结果表明,在当前工况下,铸坯冶金长度约33 m,两相区长度16 m;坯壳由压缩向拉伸过渡,在坯壳内侧前沿为完全拉伸状态,铸坯存在展宽现象;计算值和实测值均表明,Q235B钢在模拟工况下,实际铸坯尺寸比公称尺寸大10 mm左右。

关键词: 230 mm x 1500 mm板坯, 连铸过程, 热力耦合模型, 温度分布, 鼓肚, 宽展

Abstract: According to solidifying and mechanical characteristics of low carbon steel Q235B 230 mm x 1500 mm slab at elevated temperature, a couple thermal and mechanical finite element analysis model for temperature field and stress field of slab during casting process has been established, and the coupling calculation is carried out by using definite element software MSC. Marc. Results show that at present situation the metallurgical length is about 33 m and the length of two- phase region is 16 m； the slab shell transits from compression status to tension status and the complete tension status is at front of inside of shell ； there is spread phenomenon of slab； and the calculated value and measured value all indicate that in simulation condition the real dimension of Q235B steel slab is larger than normal dimension by about 10 mm.

Key words: 230 mm x 1500 mm Slab, Continuous Casting Process, Thermal-Mechanical Coupled Model, Distribution of Temperature, Bulging, Spread

詹美珠. 230 mm x 1500 mm板坯连铸凝固过程传热与机械变形的有限元分析[J]. 特殊钢, 2014, 35(2): 5-8.

Zhan Meizhu.

A Finite Element Analysis on Thermal Transformation and Thermal-Mechanical Deformation during 230 mm x 1500 mm Slab Casting and Solidifying Process [J]. Special Steel, 2014, 35(2): 5-8.

[1]	曾红波, 艾新港, 李胜利, 刘海啸, 宁哲, 王春松. 减轻冲刷的单流通道式感应加热中间包结构优化数学模拟 [J]. 特殊钢, 2021, 42(3): 1-06.
[2]	郭志强, 杨杰, 任学平. 轧制参数对板带热轧温度分布的影响[J]. 特殊钢, 2019, 40(5): 1-6.
[3]	谢长川, 李富帅. 扁坯窄面鼓肚变形的分析和避免措施[J]. 特殊钢, 2018, 39(5): 24-27.
[4]	肖志余, 李丽容, 刘兵, 刘小宁. Q345钢宽展模型对中厚板轧制压力预算精度的影响[J]. 特殊钢, 2016, 37(6): 13-16.
[5]	李胜利, 孙傲, 田长杰. 利用线材轧制薄带宽展的模拟研究[J]. 特殊钢, 2016, 37(2): 19-21.
[6]	洪慧平, 冯富春, 栾瑜, 肖玉. GCrl5轴承钢棒材连轧过程的有限元模拟[J]. 特殊钢, 2015, 36(1): 17-20.
[7]	周庆鹏, 王盼盼, 杨光, 杨雪. 热轧U型钢板桩切深孔型宽展模型的研究[J]. 特殊钢, 2014, 35(3): 5-7.
[8]	张磊. 连铸机二冷配水对铸坯鼓肚的改善[J]. 特殊钢, 2010, 31(1): 38-39.
[9]	刘世锋, 徐萍, 王伯健. 304不锈钢扁钢丝轧制过程中的宽展研究[J]. 特殊钢, 2009, 30(4): 19-21.
[10]	袁玲, 朱苗勇, 陈洁. AOD蓄热式烘烤过程热行为与NO排放的数值模拟[J]. 特殊钢, 2008, 29(5): 19-22.
[11]	张云祥, 张海鸥, 王桂兰, 赵嘉蓉. 高碳钢线材轧制组织和性能模型的应用[J]. 特殊钢, 2006, 27(4): 8-10.
[12]	庞玉华, 吴成, 严平. 不锈钢-碳钢复合板多道次小变形轧制温度场的数值模拟[J]. 特殊钢, 2006, 27(2): 9-12.
[13]	黄灿, 杭乃勤, 张细菊, 刘丹, 熊建良, 董素梅, 欧阳标. 高碳钢连铸坯加热脱碳的有限元模拟[J]. 特殊钢, 2005, 26(5): 19-22.