9th ECCC European Continuous Casting Conference – ECCC 2017

Research of Clogging in Continuous Casting Nozzles at KU Leuven M. Guo1*, Y. Vermeulen2, Rob Dekkers3, X. Guo4, Patrick Wollants1, and Bart Blanpain1 1Dept. of Materials Engineering, KU Leuven, 3001 Heverlee, Belgium 2 3 ROCKWOOL B.V. Industrieweg 15, Postbus 1160,The Netherlands 4Dept. of Mater. Sci. & Eng., TU Delft Mekelweg 2, 2628 CD Delft, The Netherlands *Corresponding...

Nozzle clogging during steel pouring in the continuous casting process is a long-standing problem for Al-killed steels. During casting the flow rate of liquid steel through the nozzle is reduced due to the nozzle clogging, which leads to serious operational problems. Even though the ladle slide gate is fully open, the molten steel flow rate can hardly meet the demand of the tundish, causing...

Ultra low C (ULC) steel is one of major products of high quality steel in a number of steelmakers. Slab of the ULC steel is produced by continuous casting process in order to maximize process efficiency. Ti is one of important alloying elements of the ULC steel, in order to secure good formability of the steel, as it is used for outer panels of automobile. It has been a long problem that...

In some cases, the precipitation of CaS around CaO-Al2O3 inclusions are observed in hot coil, even though it is not found in CC slab. The purpose of this study is to investigate S solubility in solid CaO-Al2O3 at various temperatures and clarify the mechanism of this phenomenon. For the experiment, first, the mixture of the reagent of CaO, Al2O3, CaS at a given composition was charged in...

High clean steels have been widely employed as automotive parts. However, the spinel inclusion, which is formed during the ladle refining process, has potential causes of nozzle clogging as well as of defects in products. Furthermore, the liquid oxide inclusion in the steel melt can be transformed to spinel during casting process. Hence, it is crucial to predict the inclusion evolution during...