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| Study on Secondary Cooling Model for 180 mm×180mm Billet in The Process of Continuous Casting |
| Meng yuan Zhang1, 2,Song yuan Ai1,Wenjie He3,Mu-Jun LONG2, 4 |
1. College of Materials Science and Engineering, Chongqing University
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3. 重庆大学
4. Chongqing University
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Abstract The secondary cooling process control model is very important for the control of the quality of the billet in the continuous casting process, a 180mm billet caster lacks more refined secondary cooling process control model, which is not conducive to the improvement of the billet quality. For the caster, this paper comprehensively considers the influence of the casting speed v (m/min) and the superheat ΔT(°C) on the cooling water volume of each section in the secondary cooling zone, and determines a more advanced secondary cooling control model，then combining with the off-line simulation research, the reasonable values of a、b、c、d in the model are determined, and the value of d is related to the casting speed. The simulation results meet the requirements of the metallurgical criteria, and the billet could achieve uniform cooling, which indicate that the determined secondary cooling process model is conducive to the improvement of the quality of the billet.
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Received: 25 March 2019
Published: 17 April 2020
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| [2] |
WANG Ya-tao, ZHU Xiao-yong, YAN Jian-wu. Strategy analysis of secondary cooling water distribution for lab caster[J]. CONTINUOUS CASTING, 2022, 41(1): 67-71. |
| [3] |
YANG Wen, ZHANG Yan-hui, ZHANG Li-feng, JIANG Jin-dong, WU Cong-ying. Mechanism of drawing fracture of hard wire steel and optimization of continuous casting process[J]. Iron and Steel, 2021, 56(9): 74-79. |
| [4] |
ZHANG Yanhui1，WANG Yadong1，ZHANG Lifeng2，YANG Wen1，REN Ying1，ZHANG Dongsheng3. Effect of superheat on macrosegregation in highcarbon steel billet during continuous casting process[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2021, 33(8): 784-791. |
| [5] |
BAO Yan-ping, WANG Min. Development trend of tundish metallurgical technology[J]. CONTINUOUS CASTING, 2021, 40(5): 2-11. |
| [6] |
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2019, Vol. 38 