Abstract
The clogging behavior of a submerged entry nozzle for the casting of sulfur-containing Ca-treated Al-killed Ti-bearing steel was ex situ investigated. The surface of clogging consisted of CaO-TiOx phase, Al2O3-MgO phase, and Al2O3-CaO-SiO2 phase. The TiOx in the clogging was originated from the adhesion of inclusions in molten steel. The silicate inclusions were formed by the reaction between low-melting-point impurities in the nozzle base material, which can alleviate the nozzle clogging.
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Acknowledgments
The authors are grateful for support from the National Natural Science Foundation of China (Grant No. 51725402), the Science Foundation of Hebei (Grant Nos. 20311005D, 20591001D), the High Steel Center (HSC) at Yanshan University, Hebei Innovation Center of the Development and Application of High Quality Steel Materials, Hebei International Research Center of Advanced and Intelligent Manufacturing of High Quality Steel Materials.
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Manuscript submitted September 11, 2020; accepted February 4, 2020.
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Cheng, L., Zhang, L., Ren, Y. et al. Clogging Behavior of a Submerged Entry Nozzle for the Casting of Ca-Treated Al-Killed Ti-Bearing Steel. Metall Mater Trans B 52, 1186–1193 (2021). https://doi.org/10.1007/s11663-021-02110-z
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DOI: https://doi.org/10.1007/s11663-021-02110-z