Numerical Simulation of Temperature and Flow Field in Thick-slab Continuous Casting Mould for Molten Special Steel

Gao Qi; Xu Xuehua; Chen Pinghu; Zhang Lihua; Li Yibo; Li Xiaoqian

doi:10.15980/j.tzzz.2015.09.018

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Numerical Simulation of Temperature and Flow Field in Thick-slab Continuous Casting Mould for Molten Special Steel
Vol. 35, Issue 9, Pages: 958-961(2015)
Published： 2015 ，
DOI： 10.15980/j.tzzz.2015.09.018

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[1]高琦,徐学华,陈平虎,张立华,李毅波,李晓谦.特殊钢特厚板结晶器内温度场及流场的数值模拟[J].特种铸造及有色合金,2015,35(09):958-961.

Gao Qi, Xu Xuehua, Chen Pinghu, et al. Numerical Simulation of Temperature and Flow Field in Thick-slab Continuous Casting Mould for Molten Special Steel. [J]. Special Casting & Nonferrous Alloys 35(9):958-961(2015)
[1]高琦,徐学华,陈平虎,张立华,李毅波,李晓谦.特殊钢特厚板结晶器内温度场及流场的数值模拟[J].特种铸造及有色合金,2015,35(09):958-961. DOI： 10.15980/j.tzzz.2015.09.018.

Gao Qi, Xu Xuehua, Chen Pinghu, et al. Numerical Simulation of Temperature and Flow Field in Thick-slab Continuous Casting Mould for Molten Special Steel. [J]. Special Casting & Nonferrous Alloys 35(9):958-961(2015) DOI： 10.15980/j.tzzz.2015.09.018.

摘要

采用数值模拟对特殊钢特厚板连铸结晶器工艺参数进行优化。首先对400mm×2 400mm的板坯结晶器内不同过热度及水口不同插入深度进行了模拟。其次

在优化的基础上

研究了铸造速度对流场温度场的影响

并研究了在拉速为0.5m/min的条件下得到的热应力结果。结果表明

结晶器内宜选用水口插入深度约为120mm

过热度为20K

拉速为0.5m/min

既能保证生产率也能保证产品品质。

Abstract

Numerical simulation was adopted to optimize process parameters of the thick-slab continuous casting mould for molten special steel

and then the optimized process parameters were presented.The numerical simulation of temperature field and flow field was carried out with various superheat and nozzle insert depth in 400mm×2 400 mm billet crystallizer.In addition

on the basis of optimization

influence of casting speed on flow field and temperature field was analyzed.Meanwhile

under the condition of 0.5m/min

thermal stress results were given.With 0.5m/min at over-degree of 20 Kand penetrating depth of 120 mm

it can not only ensure the quality of the casting

but also ensure the production efficiency.