Journal
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
Volume 52, Issue 3, Pages 1186-1193Publisher
SPRINGER
DOI: 10.1007/s11663-021-02110-z
Keywords
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Funding
- National Natural Science Foundation of China [51725402]
- Science Foundation of Hebei [20311005D, 20591001D]
- 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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The clogging behavior of a submerged entry nozzle for casting sulfur-containing Ca-treated Al-killed Ti-bearing steel was investigated, revealing that the surface of clogging consisted of CaO-TiOx phase, Al2O3-MgO phase, and Al2O3-CaO-SiO2 phase. The TiOx in the clogging originated from the adhesion of inclusions in molten steel, while the silicate inclusions were formed by the reaction between low-melting-point impurities in the nozzle base material, which can alleviate nozzle clogging.
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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