Conveners
IMPACT OF TUNDISH AND MOLD FLUXES ON PRODUCT QUALITY
- Jung-Wok Cho (POSTECH)
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Nathalie Gruber (Montanuniversität Leoben)12/03/2026, 13:30Impact of new upstream production lines on surface quality in continuous castingOral Presentation
During the continuous casting of steels, a carbon-enriched layer forms on top of the liquid slag. Owing to fluctuations in the mold, liquid steel may come into contact with this layer, leading to re-carburization. Previous attempts to mitigate this phenomenon seemed insufficient for the intended applications; therefore, mold powders with reduced or zero carbon content are desired. For mold...
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Rahul Sarkar (IIT Kanpur)12/03/2026, 13:55Impact of new upstream production lines on surface quality in continuous castingOral Presentation
Mold fluxes are critical in continuous casting (CC), because they control both lubrication and heat transfer in the CC mould. Heat transfer is primarily influenced by the crystallization behaviour of the mould flux, while lubrication depends on the viscosity of the slag pool formed by molten flux. Primarily, these two factors depend on the type and composition of mould fluxes used for casting...
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Milad Mahdi (Prosimet SpA)12/03/2026, 14:20Impact of new upstream production lines on surface quality in continuous castingOral Presentation
Tundish covering powders are prone to sintering, which leads to crust formation during steel
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casting operations. Sintering occurs through atomic diusion within the microstructure, driven
by chemical potential gradients, and typically becomes significant at temperatures above
approximately 70% of the material’s melting point. To delay this phenomenon, carbon—
characterized by a very high... -
Marc Faverjon (DEREF SpA)12/03/2026, 14:45Impact of new upstream production lines on surface quality in continuous castingOral Presentation
Exposure to Respirable Crystalline Silica is one of the main health issues for workers when using certain acidic tundish covering powders, such as rice ash. Since exposure to RCS is considered as carcinogenic, the EU has introduced a VLE and an obligation to control the exposure levels in workplaces.
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Acidic tundish powder is required to cast certain steel grades in medium-long sequence. They...