Composition design and physical properties prediction of mold flux for continuous casting of high Mn–HIGH Al steel

J. Y. Hu; X. W. Liao; L. H. Feng; W. Kang; Y. Liu

Metalurgija (Jan 2022)

Composition design and physical properties prediction of mold flux for continuous casting of high Mn–HIGH Al steel

J. Y. Hu,
X. W. Liao,
L. H. Feng,
W. Kang,
Y. Liu

Affiliations

J. Y. Hu: School of Materials and Metallurgy, School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, 114051, Liaoning, China; State Key Laboratory of Marine Equipment and Applications, Anshan 114009, Liaoning, China
X. W. Liao: State Key Laboratory of Marine Equipment and Applications, Anshan 114009, Liaoning, China; Ansteel Iron and Steel Research Institute, Anshan 114009, Liaoning, China
L. H. Feng: School of Materials and Metallurgy, School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, 114051, Liaoning, China; State Key Laboratory of Marine Equipment and Applications, Anshan 114009, Liaoning, China
W. Kang: State Key Laboratory of Marine Equipment and Applications, Anshan 114009, Liaoning, China; Ansteel Iron and Steel Research Institute, Anshan 114009, Liaoning, China
Y. Liu: School of Materials and Metallurgy, School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, 114051, Liaoning, China; State Key Laboratory of Marine Equipment and Applications, Anshan 114009, Liaoning, China

Journal volume & issue: Vol. 61, no. 1
pp. 163 – 166

Abstract

Read online

The deterioration of CaO-SiO2 based mold flux caused by the reaction of steel -slag interface is a bottleneck restricting the high Mn-Al steel continuous casting production efficiently. Therefore, the development of low-reactivity mold flux has become a research hotspot. In this paper, the scheme of high Al2O3 and low SiO2 was adopted to suppress or reduce the occurrence of steel-slag reaction. Drawing binary phase diagram of mold flux based on the CaO–Al2O3 composition, the influence of different solvents on the melting characteristics of the mold flux were investigated and the reasonable mass ratio of CaO/Al2O3and the content of SiO2, SrO, MgO, Na2O and B2O3 were determined. According to the viscosity and the melting temperature model calculation, the physical property is beneficial for the composition design of low-reactivity mold flux.

Published in Metalurgija

ISSN: 0543-5846 (Print); 1334-2576 (Online)
Publisher: Croatian Metallurgical Society
Country of publisher: Croatia
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://pubweb.carnet.hr/metalurg/journal-metalurgija-2/about-journal

About the journal

Abstract

Keywords