Development of Slag-Forming Mixture for Steel-Pouring Ladle and its Application Technology During Production of Steels with High Aluminum and Sulfur Content

Autor: I. V. Lebedev, A. M. Toptygin, A. N. Bozheskov, K. N. Anisimov, A. V. Kuklev
Rok vydání: 2016
Předmět:
Zdroj: Metallurgist. 59:1081-1085
ISSN: 1573-8892
0026-0894
DOI: 10.1007/s11015-016-0218-6
Popis: Flotation and assimilation of nonmetallic inclusions from metal slag in steel-pouring ladles and tundishes during pouring steels with increased aluminum and sulfur content are considered. The authors study the formation of nonmetallic inclusions in a steel-pouring ladle during steel extra-furnace treatment, the process of submerged nozzle clogging during continuous casting, the change in slag composition in a tundish, and development of an assimilation mixture composition for a steel-pouring ladle. Laboratory studies are made of the physicochemical properties of a developed SFM. It is established that use of the new SFM makes it possible to improve nonmetallic inclusion assimilation in a steel-pouring ladle and does not lead to a marked change in slag chemical composition and physical properties in a tundish. As a result of this, there is less steel contamination with nonmetallic inclusions and a reduction in submerged nozzle clogging.
Databáze: OpenAIRE