Teeming stream protection using an argon shroud during casting of steel ingots

Chao-jie Zhang; Yan-ping Bao; Min Wang; Le-chen Zhang

doi:10.1007/s12613-017-1377-6

Volume 24 Issue 1

Jan. 2017

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2017 > 24(1): 47-54

Chao-jie Zhang, Yan-ping Bao, Min Wang, and Le-chen Zhang, Teeming stream protection using an argon shroud during casting of steel ingots, Int. J. Miner. Metall. Mater., 24(2017), No. 1, pp. 47-54. https://doi.org/10.1007/s12613-017-1377-6

Cite this article as:

Chao-jie Zhang, Yan-ping Bao, Min Wang, and Le-chen Zhang, Teeming stream protection using an argon shroud during casting of steel ingots, Int. J. Miner. Metall. Mater., 24(2017), No. 1, pp. 47-54. https://doi.org/10.1007/s12613-017-1377-6

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Research Article

Teeming stream protection using an argon shroud during casting of steel ingots

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Corresponding author:
Yan-ping Bao E-mail: baoyp@ustb.edu.cn
Received: 21 July 2016; Revised: 26 September 2016; Accepted: 26 September 2016

Abstract

Abstract

Two kinds of argon shroud protection devices with two different basic structures were designed and investigated. Industrial experiments and numerical simulations were used to examine the protection effect, and the mechanism of air entrapment during the casting of steel ingots was analyzed. The influence of the structure of the argon shroud protection device on the protection effect was investigated. An argon shroud protection device mounted to the nozzle holder on the bottom of the ladle does not provide a good protection effect because air can easily flow into the teeming system and cause reoxidation of molten steel during teeming. By contrast, an argon shroud protection device seated on the top of the central trumpet provides an excellent protection effect, where air has little chance of flowing into the teeming system during casting. The feasibilities of the argon shroud protection devices are discussed.
- steel ingots;
- ingot casting;
- teeming;
- protection devices;
- reoxidation

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References

[1]	C. X. Ji, Y. Cui, Z. Zeng, Z. H. Tian, C. L. Zhao, and G. S. Zhu, Continuous casting of high-Al steel in Shougang Jingtang Steel Works, J. Iron Steel Res. Int., 22(2015), p. 53.
[2]	K. Jin, B. G. Thomas, and X. Ruan, Modeling and measurements of multiphase flow and bubble entrapment in steel con tinuous casting, Metall. Mater. Trans. B, 47(2016), No. 1, p. 548.
[3]	L. C. Zhang, Y. P. Bao, M. Wang, and C. J. Zhang, Variation and optimization of acid-dissolved aluminum content in stainless steel, Int. J. Miner. Metall. Mater., 23(2016), No. 4, p. 408.
[4]	D. Li, X. Q. Chen, P. Fu, X. Ma, H. Liu, Y. Chen, Y. F. Cao, Y. K. Luan, and Y. Y. Li, Inclusion flotation-driven channel segregation in solidifying steels, Nat. Commun., 5(2014), p. 5572.
[5]	J. Zhang, F. M. Wang, and C. R. Li, Thermodynamic analysis of the compositional control of inclusions in cutting-wire steel, Int. J. Miner. Metall. Mater., 21(2014), No. 7, p. 647.
[6]	L. Zhang and B. G. Thomas, State of the art in the control of inclusions during steel ingot casting, Metall. Mater. Trans. B, 37(2006), No. 5, p. 733.
[7]	K. Sumitomo, M. Hashio, T. Kishida, and A. Kawami, Bottom pouring and ingot quality at Sumitomo metal industries, Iron Steel Eng., 62(1985), No. 3, p. 54.
[8]	L. Ragnarsson and D. Sichen, Inclusions generated during ingot casting of tool steel, Steel Res. Int., 81(2010), No. 1, p. 40.
[9]	N. Tripathi and D. Sichen, Non-metallic inclusions in the ingot and final products of a medium-carbon tool steel, Scand. J. Metall., 33(2004), No. 6, p. 362.
[10]	L. Ragnarsson, W. Song, Y. Ma, and D. Sichen, Oxygen penetration in the protection shroud in steel casting, Steel Res. Int., 81(2010), No. 11, p. 965.
[11]	Z. J. Zhang, Teeming stream protection technology for ingot casting, Steelmaking, 1988, No. 4, p. 46.
[12]	L. Ragnarsson, W. Song, Y. L. Ma, and D. Sichen, Physical and mathematical modelling of argon shroud for protection of steel stream during casting, Int. J. Cast. Met. Res., 23(2010), No. 6, p. 368.
[13]	T. W. Sun, Experiment and analysis of argon shroud protection during teeming, Steelmaking, 1991, No. 5, p. 23.
[14]	T. J. Zhou, Investigation of the effect of argon protection behavior in the ingot casting process, Baosteel Tech. Res., 9(2015), No. 4, p. 20.
[15]	K. Iwata, T. Choh, and M. Inouye, A model experiment on the gas entrainment with pouring liquid steel stream, Trans. Iron Steel Inst. Jpn., 23(1983), No. 3, p. 218.