Solidification Behavior of Liquid Metal in Mould Cavity with and Without Jet Pouring System in Continuous Casting

Abstract

This paper spotlights on the solidification behavior of a continuous casting process with and without a jet-pouring system in a rectangular steel billet with a square cross section. The parametric exploration of the solidification process during continuous casting is carried out by the solidification-melting model integrated with the volume of fluid (VOF) model. The simulation was done with the computational package ANSYS (Version 19R3). The solidification behavior is evaluated by estimating the temperature, velocity, and liquid fraction inside the mould at different pouring temperatures and different inlet velocities with and without jets. The uniformity of velocity and temperature profiles inside the cavity are changed with an increase in inlet velocity at a constant pouring temperature, with and without a jet pouring system. The uniform temperature and velocity distribution inside the mould suggested uniform solidification propagation, which was justified by the liquid fraction profile inside the mould. The solidification is propagated from the bottom in the jet system, and it is propagated from the wall side in the absence of the jet system. The better solidification behavior is observed at 0.177 m/s inlet velocity and 1803 K pouring temperature at 1118 K constant wall temperature in the absence of a jet, and in the jet pouring system, better solidification is observed at 10 times higher velocity at the same temperature.