Analysis of Corrosion Behavior of ZrO2-C Slag-line Materials in Continuous Casting

doi:10.19691/j.cnki.1004-4493.2023.03.003

China's Refractories ›› 2023, Vol. 32 ›› Issue (3): 10-13.DOI: 10.19691/j.cnki.1004-4493.2023.03.003

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Analysis of Corrosion Behavior of ZrO₂-C Slag-line Materials in Continuous Casting

TIAN Chen^1,2, ZHI Jianjun³, GAN Feifang³, FAN Zhengjie³, GAO Hua³, YUAN Lei^2,*, LIU Guoqi⁴, YU Jingkun², LI Hongxia⁴

1 Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China;
2 School of Metallurgy, Northeastern University, Shenyang 110819, China;
3 Baoshan Iron and Steel Co., Ltd, Shanghai 201900, China;
4 Sinosteel Luoyang Institute of Refractories Research Co., Ltd., Luoyang 471039, China

Online:2023-09-15 Published:2023-11-07
Contact: *e-mail: yuanl@smm.neu.edu.cn
About author:Tian Chen, Ph. D, graduated from Northeastern University in 2023. Then he continued to work as a postdoctor in the School of Metallurgy at Northeastern University. His research interests cover the optimization of continuous casting process and the service efficiency of refractory materials. At present, he has published more than 20 research papers in international journals.

Abstract

Abstract: In view of the service failure and low continuous casting production efficiency due to the corrosion of refractories at the slag-line in submerged entry nozzles, a submerged entry nozzle for low-carbon aluminum killed steel continuous casting in one steel plant was sampled and taken as the research object to analyze the causes and the mechanism of refractory corrosion at the slag-line. The results show that the core issue of the corrosion and necking of the slag-line materials is that the slag-line material are eroded, dissolved, and reacted by the mold flux gradually. Therefore, it is important to suppress or avoid the contact and reaction between the mold flux and slag-line materials.

Key words: continuous casting, submerged entry nozzle, slag-line, slag corrosion resistance

TIAN Chen, ZHI Jianjun, GAN Feifang, FAN Zhengjie, GAO Hua, YUAN Lei, LIU Guoqi, YU Jingkun, LI Hongxia. Analysis of Corrosion Behavior of ZrO₂-C Slag-line Materials in Continuous Casting[J]. China's Refractories, 2023, 32(3): 10-13.

[1]	LIU Guoqi, GU Qiang, LI Hongxia, YUAN Lei, YANG Wengang, QIAN Fan, MA Weikui, YU Jianbin, YU Jingkun. Research Progress on Anti-clogging Technology of Submerged Entry Nozzles for Continuous Casting [J]. China's Refractories, 2022, 31(4): 1-6.
[2]	WANG Jingran, CHEN Xinming, KE Changming, ZHANG Jinhua, LIU Xuexin, LI Wen. Rheological and Sintering Properties of Two Kinds of Corundum-spinel Micropowders [J]. China's Refractories, 2022, 31(4): 7-11.
[3]	SHEN Mingke, LUO Ming, HU Chengyang, YU Yan, SONG Yanan, NI Feijiang, LI Jin. Effects of Four Kinds of Alumina Micropowder on Properties of Al₂O₃-C Refractories [J]. China's Refractories, 2022, 31(4): 34-38.
[4]	Gernot HACKL, Yong TANG, Gerald NITZL, Dennis SCHURMANN, Bernd WILLERS, Sven ECKERT. An Innovative Submerged Entry Nozzle Design for Billet and Bloom Casting [J]. China's Refractories, 2021, 30(2): 45-50.
[5]	MOU Jining, YU Yanwen. Structure Optimization of SENs and Upper Nozzles [J]. China's Refractories, 2020, 29(1): 27-30.
[6]	YANG Wengang, LI Hongxia, LIU Guoqi, MA Tianfei, QIAN Fan, YU Jianbin. Structure Design of SEN for High Efficiency Thin Slab Continuous Casting [J]. , 2018, 27(1): 28-29.
[7]	LIU Meng, SONG Yijie, LIU Jixiong, XU Guotao, CHEN Huasheng. Wearing Property and Friction Mechanism of Ceramic Side Dams Used in Thin Strip Continuous Casting [J]. , 2017, 26(1): 42-46.
[8]	QIAN Fan*,LI Hongxia,LIU Guoqi, YANG Wengang, YU Jianbin, MA Weikui. Damage Mechanism and Countermeasures of Carbon Bonded Refractories for Continuous Casting [J]. , 2016, 25(3): 42-47.
[9]	WANG Jianzhu, ZHAO Junxue. Finite Element Analysis on Thermal Stress of SEN [J]. , 2015, 24(2): 51-54.
[10]	LI Hongxia, LIU Guoqi, YANG Wengang. Structure and Material Design of High Performance Functional Refractories for High-speed Continuous Casting [J]. China's Refractories, 2012, 21(1): -.
[11]	TU Junbo. Research Development on Refractory Lining for Continuous Casting Tundish [J]. China's Refractories, 2012, 21(1): -.
[12]	LI Hongxia, YANG Bin, LIU Guoqi. Erosion Effect of Molten Steel on Carbon Containing Refractories for Continuous Casting [J]. China's Refractories, 2007, 16(2): -.
[13]	TIAN Shouxin,JINCongjin,YAO Jinfu. Development of Refractories for Continuous Casting [J]. China's Refractories, 2004, 13(1): -.
[14]	LI Youfen, Hong Yanruo,ZHONG Xiangchong. Slag Corrosion Resistance of Sialon-Al2O3 Composites-Part II. Kinetics [J]. China's Refractories, 2001, 10(4): -.
[15]	LI Youfen, HONG Yanruo, ZHONG Xiangchong. Slag Corrosion Resistance of Sialon-Al2O3 Composites-Part I, Thermodynamics and Mechanism [J]. China's Refractories, 2001, 10(3): -.

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Analysis of Corrosion Behavior of ZrO₂-C Slag-line Materials in Continuous Casting

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