Abstract
It is beneficial to identify the mechanism of absorbing inclusions by clarifying the physical and chemical properties of tundish covering flux during continuous casting. The composition, melting point, viscosity, and surface tension of covering flux of a factory are tested and analyzed. The results demonstrate that the high melting point component is enriched with the increase of the number of pouring furnaces. The content of SiO2 and MgO in the covering flux at the end of casting increased fivefold compared with the beginning, resulting in the melting point of the covering flux in casting region rising from 1325 to 1345 °C. Furthermore, the viscosity of covering flux increases by 10 mPa s, and the surface tension also decreases by 50 mN/m at 1500 °C, which makes the adsorption capacity of covering flux to inclusions become worse. Moreover, the increase in flux stabilizes the performances such as viscosity and surface tension of covering flux.
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© 2022 The Minerals, Metals & Materials Society
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Hu, H. et al. (2022). Evolution of Physicochemical Properties of Tundish Covering Flux in Continuous Casting Process. In: TMS 2022 151st Annual Meeting & Exhibition Supplemental Proceedings. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-92381-5_97
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DOI: https://doi.org/10.1007/978-3-030-92381-5_97
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