|
|
Optimization of submerged entry nozzle parameters for ultra-high casting speed continuous casting mold of billet |
Pei Xu1,2, Yong-zhi Zhou1,2, Deng-fu Chen1,2, Mu-jun Long1,2, Hua-mei Duan1,2 |
1 Laboratory of Metallurgy and Materials, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; 2 Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing 400044, China |
|
|
Abstract Controlling the flow behavior in the mold in an appropriate way is the basis for realizing the billet ultra-high speed continuous casting. Based on the new proposed physical water modeling experiment considering the effects of solidified shell and hydrostatic pressure, the flow behavior in the mold with cross section of 160 mm 9 160 mm during continuous casting of billet is regulated by optimizing the inner diameters and immersion depths of submerged entry nozzle at the ultra-high casting speeds of 5.0–6.5 m/min. The results show that under the premise of no slag entrainment, as well as uniform coverage and keeping good fluidity of liquid slag layer on the top free surface of the fluid in the mold, the appropriate parameters of submerged entry nozzle under the ultra-high casting speed of billet are 50 mm in inner diameter, 95 mm in outer diameter and 180 mm in immersion depth. And on the basis of the obtained parameters of submerged entry nozzle, it can be known that the reasonable ranges of level fluctuation and impacting depth of the stream in the mold are about 0.82–1.11 and 593–617 mm, respectively.
|
|
|
|
|
Cite this article: |
Pei Xu,Yong-zhi Zhou,Deng-fu Chen, et al. Optimization of submerged entry nozzle parameters for ultra-high casting speed continuous casting mold of billet[J]. Journal of Iron and Steel Research International, 2022, 29(01): 44-52.
|
|
|
|
[1] |
Ya-dong Wang, Li-feng Zhang, Wen Yang, Ying Ren. Effect of nozzle type on fluid flow, solidification, and solute transport in mold with mold electromagnetic stirring[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(2): 237-246. |
[2] |
Wei Liang, Jing Li, Bin Lu, Jian-guo Zhi, Shuai Zhang, Yang Liu. Analysis on clogging of submerged entry nozzle in continuous casting of high strength steel with rare earth[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(01): 34-43. |
[3] |
Mian-guang Xu, Miao-yong Zhu. Physical and computational study of a novel submerged entry nozzle design for twin-roll casting process[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2021, 28(11): 1390-1399. |
[4] |
ZHONG Liang-cai;WANG Ming-an;CHEN Bo-yu;et al. Flow Control in Six-Straud Billet Continuous Casting Tundish With Different Configurations[J]. Chinese Journal of Iron and Steel, 2010, 17(7): 7-7. |
[5] |
LIU Wenhong;XIE Zhi;JI Zhenping;WANG Biao;LAI Zhaoyi;JIA Guanglin. Dynamic Water Modeling and Application of Billet Continuous Casting[J]. Chinese Journal of Iron and Steel, 2008, 15(2): 14-0. |
|
|
|
|