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| Variation of meniscus shape and initial steel solidification under different steel–slag interfacial tension in continuous casting mold of slab |
| He-bin Jin1, Xue-you Wang1, Yun-bo Wang2, Shi-song Wang2, Xu-bin Zhang1, Sheng-ping He1 |
| 1 College of Materials Science and Engineering, Chongqing Key Laboratory of Vanadium–Titanium Metallurgy and Advanced Materials, Chongqing University, Chongqing 400044, China; 2 Steelmaking Plant, Qingdao Special Steel Co., Ltd., Qingdao 266400, Shandong, China |
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Abstract A two-dimensional model was applied to investigate the influence of the interfacial tension between the steel and the slag on the behavior of the meniscus in continuous casting mold of slab. The shape of the meniscus and phenomena near the meniscus were revealed, and the profile of the slag rim and the depth of the solidified meniscus and oscillation marks with different interfacial tension of the steel and slag were compared. With the increase in the interfacial tension, the size of the curved meniscus increased, while the curvature and the height of the local meniscus close to the mold decreased. Besides, the thickness of the slag rim, solid slag and total slag near the meniscus had the tendency to increase, and the bottom of the slag rim became lower and thicker. With the increase in the interfacial tension from 0.1 to 2.5 N/m, the location of the largest heat flux near the meniscus decreased from 10.0 to 2.5 mm above the initial level of the steel, and the largest heat flux was within 3.52–4.58 MW/m2. Meanwhile, the largest depth of the solidified meniscus decreased from 3.3 to 2.3 mm, and the depth of oscillation marks decreased, which was conducive to the shallow hook at the subsurface of the slab, and the improvement of surface cleanliness of the slab.
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He-bin Jin,Xue-you Wang,Yun-bo Wang, et al. Variation of meniscus shape and initial steel solidification under different steel–slag interfacial tension in continuous casting mold of slab[J]. Journal of Iron and Steel Research International, 2023, 30(03): 465-474.
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| [1] |
Yi-bo Liu, Jian Yang, Chao Ma, Tao Zhang, Fu-bin Gao, Tai-quan Li, Jun-li Chen. Mathematical modeling of flow field in slab continuous casting mold considering mold powder and solidified shell with high temperature quantitative measurement[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(3): 445-461. |
| [2] |
Wan-lin Wang, Er-zhuo Gao, Le-jun Zhou, Lei Zhang, Huan Li. Effect of Al2O3/SiO2 and CaO/Al2O3 ratios on wettability and structure of CaO–SiO2–Al2O3-based mold flux system[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2019, 26(4): 355-364. |
| [3] |
Feng-ming DU,Xu-dong WANG,Yu LIU,Tian-yi LI,Man YAO. Analysis of Non-uniform Mechanical Behavior for a Continuous Casting Mold Based on Heat Flux from Inverse Problem[J]. Chinese Journal of Iron and Steel, 2016, 23(2): 83-91. |
| [4] |
Lin-min LI, Zhong-qiu LIU, Bao-kuan LI. Modelling of Bubble Aggregation, Breakage and Transport in Slab Continuous Casting Mold[J]. Chinese Journal of Iron and Steel, 2015, 22(Supplement 1): 30-35. |
| [5] |
Zhong-qiu LIU,Feng-sheng QI,Bao-kuan LI,Mao-fa JIANG. Vortex Flow Pattern in a Slab Continuous Casting Mold with Argon Gas Injection[J]. Chinese Journal of Iron and Steel, 2014, 21(12): 1081-1089. |
| [6] |
ZHU Miao-yong,CAI Zhao-zhen,YU Hai-qi. Multiphase Flow and Thermo-Mechanical Behaviors of Solidifying Shell in Continuous Casting Mold[J]. Chinese Journal of Iron and Steel, 2013, 20(3): 6-17. |
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2023, Vol. 30 
