|
|
|
| Heat transfer behavior of inner shell of ultra-high speed continuous casting mould |
| ZHANG Lu-ping1,2, XIAO Peng-cheng1,2, LIU Zeng-xun1,2, ZHANG Zhao-yang3, ZHU Li-guang2,4, ZHANG Shi-jun3 |
1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, Hebei, China;
2. College of Metallurgy and Energy, Collaborative Innovation Center for High Quality Steel Continuous Casting of Hebei Province, Tangshan 063009, Hebei, China;
3. Tangshan Branch, Hebei Iron and Steel Co., Ltd., Tangshan 063000, Hebei, China;
4. Materials Science, Hebei University of Science and Technology and Engineering College, Shijiazhuang 050018, Hebei, China |
|
|
|
|
Abstract The growth rate of slab shell in the mould of ultra-high speed continuous casting funnel has a significant effect on the surface quality of slab. Based on the node temperature inheritance algorithm (NTI), the three-dimensional transient thermal conductivity model of molten steel solidification in mold was established by using ANSYS finite element software, and the influence of casting temperature and casting speed on the heat transfer behavior of thin slab was analyzed. The results show that with the increase of casting speed from 4.0 to 6.0 m/min, the maximum thickness of slab shell at the exit of mold decreases from 26 to 12.8 mm, and the maximum surface temperature of slab shell at the exit of mold increases from 1 209 ℃ to 1 305 ℃. However, the increase of casting temperature from 1 550 ℃ to 1 560 ℃ has little effect on the surface temperature and thickness of slab shell.
|
|
Received: 18 August 2021
|
|
|
|
| [1] |
周力,王新华,邓小旋,等.关于连铸传热数学模型中等效导热系数的讨论[J].连铸,2015 (4):18.
|
| [2] |
邹芳,田溪岩,李本文. 薄板坯连铸漏斗型结晶器内流动、传热和凝固行为的数值研究[J].连铸, 2008(6):27.
|
| [3] |
刘增勋,董亮,李梦英,等.连铸结晶器内圆坯传热分析[J].铸造技术,2014,35(8):1848.
|
| [4] |
杨文, 张彦辉, 张立峰, 等. 硬线钢拉拔断裂机理及连铸工艺优化[J]. 钢铁, 2021, 56(9): 74.
|
| [5] |
邵鑫, 杨建平, 王柏琳, 等. 炼钢-连铸区段多工序运行协同控制[J]. 钢铁, 2021, 56(8): 101.
|
| [6] |
杜洪波, 殷楷, 耿伟,等. 薄板坯高拉速连铸结晶器研究与改进[J]. 河北冶金, 2019 (7):19.
|
| [7] |
陈永范,程毅,董国强.FTSC结晶器铜板温度场的数值仿真[J].辽宁科技大学报,2012,35 (6):561.
|
| [8] |
胡鹏,周俐,张慧,等.薄板坯连铸结晶器热流分布研究[J].炼钢,2012,28(3):70.
|
| [9] |
李婧,王同敏,武立,等.连铸结晶器数值模拟的研究现状与发展趋势[J].铸造技术,2011,32(7):1005.
|
| [10] |
张慧,陶红标,刘爱强,等.薄板坯连铸结晶器铜板温度及热流密度分布[J].钢铁,2005,40(7): 25.
|
| [11] |
马建民. 80号钢连铸坯末端电磁搅拌优化与实践[J]. 中国冶金, 2021, 31(2): 72.
|
| [12] |
周滨新, 张康晖, 马建超, 等. 70钢小方坯芯部质量优化[J]. 中国冶金, 2021, 31(1): 42.
|
| [13] |
Nam H, Park H, Yoon J. 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.
|
| [14] |
LIU H, YANG C, ZHANG H, et al. Numerical simulation of fluid flow and thermal characteristics of thin slab in the funnel-type molds of two casters[J]. ISIJ International, 2011, 51(3):392.
|
| [15] |
JI J, MAO Y, ZHANG X, et al. Initial solidification and heat transfer at different locations of slab continuous casting mold through 3D coupled model[J]. Steel Research International, 2021,92(2000714):1.
|
| [16] |
YANG B,DENG A Y,LI Y, et al. Numerical simulation of flow and solidification in continuous casting process with mold electromagnetic stirring[J].Journal of Iron and Steel Research, 2019, 26(3):219.
|
| [17] |
果晶晶,郝华强,杨晓江,等.FTSC薄板坯连铸结晶器内的热/力行为研究[J].材料工程,2010(3):70.
|
| [18] |
李哲.方坯坯壳应力遗传分析[D].唐山:河北理工大学,2010.
|
| [19] |
张海辉.结晶器内坯壳热力耦合分析[D].唐山:河北理工大学,2011.
|
| [20] |
郭旺,刘增勋,朱立光,等.结晶器磨损对铸坯传热的影响[J].钢铁钒钛,2013,34(3):63.
|
| [21] |
张家泉,崔立新,陈志平,等.板坯连铸结晶器内温度/应力场藕合模型[J].北京科技大学报,2004,26(4):373.
|
| [22] |
肖鹏程. IF钢连铸钩状坯壳的演变及对表面洁净度的影响[D]. 唐山:华北理工大学.
|
| [1] |
Fan Qian, Hua-long Li, Wen-gang Yang, Hai-rong Guo, Guo-qi Liu, Hong-xia Li, Bei-yue Ma. Corrosion resistance of BN–ZrO2 ceramics with different additives by molten steel[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(7): 1101-1109. |
| [2] |
ZHANG Xiang，XIE Qinghua，NI Peiyuan，LI Ying. Flow behavior of molten steel in SEN during fullnozzle selfswirling flow continuous casting[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2022, 34(7): 629-638. |
| [3] |
ZHAO Xianjiu1,2，ZHANG Jieyu2,3，LI Chuanjun2,3. Analysis of formation mechanism about Ca-Mg-Al spineltype inclusions in cold thin rolling sheet[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2022, 34(7): 664-671. |
| [4] |
CHEN Shuai, LI Jia, LUO Shi-yuan, CAI Tian, ZHANG Zheng-dong, GUO Hong-wei. Design optimization and numerical simulation of blast furnace cooling column[J]. Iron and Steel, 2022, 57(7): 34-42. |
| [5] |
DU Yi-nuo, GUO Lei, YANG Yang, ZHANG Shuai, YU Han-zhang, GUO Zhan-cheng. Numerical simulation of inclusions floating behavior under supergravity field in liquid steel[J]. Iron and Steel, 2022, 57(7): 54-62. |
| [6] |
SHANG Ting-rui, WANG Wei-ling, KANG Ji-bai, ZHU Miao-yong, LUO Sen. In situ observation of solidification under transient and average cooling rate of 20CrMnTi continuous casting[J]. Iron and Steel, 2022, 57(7): 73-85. |
|
|
|
|
2021, Vol. 40 
