Influence of cooling process on heat transfer of thin slab mold

Liu Zengxun; Zhang Luping; Xiao Pengcheng; Zhang Zhaoyang; Zhu Liguang

doi:10.7513/j.issn.1004-7638.2022.04.023

Volume 43 Issue 4

Sep. 2022

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Liu Zengxun, Zhang Luping, Xiao Pengcheng, Zhang Zhaoyang, Zhu Liguang. Influence of cooling process on heat transfer of thin slab mold[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 150-157. doi: 10.7513/j.issn.1004-7638.2022.04.023

Citation:

Liu Zengxun, Zhang Luping, Xiao Pengcheng, Zhang Zhaoyang, Zhu Liguang. Influence of cooling process on heat transfer of thin slab mold[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 150-157. doi: 10.7513/j.issn.1004-7638.2022.04.023

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Influence of cooling process on heat transfer of thin slab mold

doi: 10.7513/j.issn.1004-7638.2022.04.023

Liu Zengxun^{1, 2
,},
Zhang Luping^{1, 2},
Xiao Pengcheng^{1, 2
,
,},
Zhang Zhaoyang³,
Zhu Liguang^{2, 4}

1.
College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, Hebei, China
2.
Hebei High-quality Steel Continuous Casting Collaborative Innovation Center, Tangshan 063009, Hebei, China
3.
Tangshan Branch of Hebei Iron and Steel Co., Ltd., Tangshan 063000, Hebei, China
4.
College of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, Hebei , China

Received Date: 2021-08-12
Publish Date: 2022-09-14

Abstract

Abstract

To reveal heat transfer mechanism of the slab-copper wall-cooling water system in the high-speed continuous casting mold, a three-dimensional fluid-solid-thermal coupling numerical model of slab-copper wall-cooling water in a FTSC mold was established. The influence of mold cooling process on temperature distribution of the mold copper wall and cooling water under the condition of high drawing speed had been analyzed. The results show that the peak temperature on hot surface of the copper wall with reverse water supply is 15 ℃ lower than that of the forward water supply, and the peak cooling water temperature is lowered by 14 ℃. Increasing cooling water speed can effectively reduce temperatures on copper wall and of the cooling water. Under the conditions of the cooling water does not boil , increasing the water supply pressure does not affect the mold temperature field and the cooling water inlet temperature has little effect on the temperature of the copper wall and the cooling water near the meniscus. In the low heat flow area at the lower part of the mold, the temperature change of the cooling water is more obviously affected by the inlet water temperature. The distance between the cooling water channel and the hot surface of the copper wall has a significant effect on the copper wall temperature. The cooling water temperature in the water channel at a distance of 15 mm and 25 mm from hot surface of copper wall remains same, while it significantly reduces at the distance of 35 mm away from the hot surface.
- continuous casting,
- mold,
- heat transfer,
- numerical simulation,
- water supply pressure,
- water supply temperature,
- reverse water supply

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References(14)

References

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