水口结构对薄板坯初始凝固行为的影响

doi:10.13228/j.boyuan.issn1005-4006.20220064

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Abstract A three-dimensional mathematical model has been developed for the coupled analysis of fluid flow, heat transfer and solidification in Compact Strip Production(CSP) continuous casting mold by using finite element method. Effects of casting speed and Submerged Entry Nozzle (SEN) area proportion on flow pattern of free surface, temperature distribution on slab surface and the growth of solidifying shell were investigated. The results shows that the level fluctuation of molten steel surface decreases from±10.5 mm to ±4.5 mm with casting speed decreasing from 6 m/min to 4 m/min, and the solidified shell thickness at mold exit increases from 7.1 mm to 9.5 mm. When SEN area proportion increases from 1.56 to 2.00, the level fluctuation decreases from ±9.1 mm to ±7.1 mm, and the shell thickness at mold exit reduces by 0.4 mm.

Key words： CSP numerical simulation fluid flow heat transfer solidification

Received: 28 April 2022

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	Articles by authors
	ZHANG Jian-jun
	WANG Zi-chao
	LIU Qing
	DOU Kun

Cite this article:

ZHANG Jian-jun,WANG Zi-chao,LIU Qing等. Influence of SEN configuration on initial solidification in CSP thin slab[J]. CONTINUOUS CASTING, 2023, 42(1): 82-88.

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http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20220064 OR http://www.chinamet.cn/Jweb_lz/EN/Y2023/V42/I1/82

[1]	朱苗勇.高效连铸结晶器冶金过程控制关键技术探讨[J].连铸,2011(增刊1): 1.
[2]	ZHANG L, Aoki J, Thomas B G. Inclusion removal by bubble flotation in a continuous casting mold[J]. Metallurgical and Materials Transactions B, 2006, 37(3):361.
[3]	王现辉, 王新华, 张炯明. CSP 结晶器内钢液面动态失稳现象的水模型实验[J]. 北京科技大学学报, 2009,31(2): 234.
[4]	Torres-Alonso E, Morales R D, García-Hernández S, et al. Cyclic turbulent instabilities in a thin slab mold. Part I: Physical model[J]. Metallurgical and Materials Transactions B, 2010, 41(3): 583.
[5]	Honeyands T, Herbertson J. Flow dynamics in thin slab caster moulds[J]. Steel Research, 1995, 66(7): 287.
[6]	刘珂, 季晨曦, 王胜东,等. MCCR产线110 mm薄板坯结晶器流场的数值模拟[J]. 钢铁研究学报, 2021,33(2):143.
[7]	吴振刚, 陈永范, 王爱东,等. 薄板坯高拉速浸入式水口研究与优化[J]. 连铸, 2020 (1):7.
[8]	Nam H, Park H S, Yoon J K. Numerical analysis of fluid flow and heat transfer in the funnel type mold of a thin slab caster[J]. ISIJ International, 2000, 40(9): 886.
[9]	李壮,徐宇,王恩刚.板坯电磁连铸结晶器内钢／渣界面波动及流动行为的数值模拟[J].连铸,2016(2):1.
[10]	包燕平, 朱建强, 蒋伟,等. 薄板坯连铸结晶器内流场的三维数值模拟[J]. 北京科技大学学报, 2000, 22(5): 409.
[11]	文艳梅,韩延申,刘青,等.大方坯结晶器内的多物理场模拟优化[J].钢铁,2018,53(6):58.
[12]	袁静, 时朋召, 徐李军,等. 250 mm厚板坯结晶器浸入式水口结构的优化研究[J]. 连铸, 2019(4):7.
[13]	LI B, Tsukihashi F. Effects of electromagnetic brake on vortex flows in thin slab continuous casting mold[J]. ISIJ International, 2006, 46(12): 1833.
[14]	Torres-Alonso E, Morales R D, García-Hernández S. Cyclic turbulent instabilities in a thin slab mold. Part II: Mathematical model[J]. Metallurgical and Materials Transactions B, 2010, 41(3): 675.
[15]	靳星.板坯连铸结晶器内钢液流动行为与模拟方法研究[D].重庆:重庆大学,2011.
[16]	王伟, 朱立光, 张彩军,等. 180 mm×610 mm板坯连铸结晶器内流场水模型及数值模拟[J]. 中国冶金, 2020,30(2):8.
[17]	Lai K Y M, Salcudean M, Tanaka S, et al. Mathematical modeling of flows in large tundish systems in steelmaking[J]. Metallurgical Transactions B, 1986, 17(3): 449.
[18]	WANG Y, ZHANG L. Fluid flow-related transport phenomena in steel slab continuous casting strands under electromagnetic brake[J]. Metallurgical and Materials Transactions B, 2011, 42(6): 1319.
[19]	张磊, 翟冰钰, 王万林. 薄板坯连铸及其铸坯表面缺陷的形成机理[J]. 连铸, 2020 (4):7.
[20]	马浩冉,李双江,刘洪波,等.水口结瘤对板坯连铸结晶器钢水行为影响的数值模拟[J].连铸,2020(3): 14.
[21]	张彩军, 刘磊, 刘中柱. 板坯连铸结晶器内钢液表面流速的水模研究[J]. 铸造技术, 2016, 37(4):4.
[22]	HUANG X, Thomas B G. Modeling of transient flow phenomena in continuous casting of steel[J]. Canadian Metallurgical Quarterly, 1998, 37(3/4):197.
[23]	庄迎,李吉东.不锈钢方坯连铸结晶器内钢渣界面行为的数值模拟研究[J].连铸,2016(5): 26.