9th ECCC European Continuous Casting Conference – ECCC 2017

The decrease of first slabs downgrades and the reduction of clogging on specific alloyed steel grades to increase product quality and extend casting sequence have been one of the priorities of Aperam Genk continuous casting team. High steel quality levels and particularly cleanliness have to be achieved at the beginning of the cast. Tundish filling has been studied along with the influence of the different refractory product geometry on turbulence generation and air entrapment. Ladle shroud position and verticality, Turbostop® design, tundish outlet geometry including stopper nose and casting channel entrance have been evaluated using advanced numerical simulations. These refractory parts have been redesigned to enhance tundish flow performance in regards to NMI floatation, cold steel volume reduction, minimum residence time increase, turbulence reduction during steady operations and during the initial tundish filling