Thermo-Mechanical Model of Steel Continuous Casting Process

Abstract

In the paper a numerical model of heat and mass transfer in the mould zone in the steel continuous casting technology was presented. The model has been developed using ProCAST software designed for simulation of casting processes. It allows to determine temperature and stress distribution in continuous castings in order to optimize the most important process parameters. In this work calculations were executed for low carbon steel grades casted in the industry. In the simulations the real rheological properties measured in the experimental work and the boundary conditions determined on the basis of the industrial data were used.Keywords: continuous casting process, numerical simulation, rheological model W pracy przedstawiono numeryczny model przepływu ciepła i masy w strefie krystalizatora w procesie ciągłego odlewania stali. Model ten został opracowany z wykorzystaniem oprogramowania ProCAST przeznaczonego do symulacji procesów odlewniczych. Model ten może służyć do wyznaczenia rozkładu temperatury oraz naprężenia w ciągłym wlewku, co umożliwia optymalizację parametrów procesu. W pracy przeprowadzono symulacje dla stali niskowęglowych. W symulacji wykorzystano rzeczywiste właściwości reologiczne stali wyznaczone w pomiarach laboratoryjnych oraz warunki brzegowe określone na podstawie danych przemysłowych.

Identification of the steel viscosity and dynamic yield stress for the numerical modelling of casting simulations in the semi-solid state

“…This processing method is successfully applied in numerous industries which produce parts from aluminium and magnesium alloys [3][4][5][6][7][8][9]. Research is currently being conducted on the practical application of thixoforming in processing of high melting point metal alloys and numerical modeling of the continuous casting processes [10][11][12].…”

Application of Thermal Analysis Tests Results in the Numerical Simulations of Continuous Casting Process

“…Various variants of boundary conditions assumed in the numerical simulation, describing complex mechanisms of heat transfer between the solidifying cast strand and the environment, enable various cooling programmes to be optimised for the shell forming rate or thermal stress occurring in the cast strand [1]. ProCAST is an example of a commercial program which enables the CCS process to be modelled [2,3].…”

Rheology of StelliteTM 21 Alloy in Semi-Solid State

“…Another approach based on compression test was applied by Cezard [15] and Solek [16]. In order to analyse stress-strain distribution in solidified steel alloys after thixoforming process the flow stress below solidus temperature were also investigated [17].…”

“…Thixoforming processing is successfully used by a number of industries producing aluminium and magnesium alloy parts [1][2][3][4][5][6]. The technology has numerous applications in the electronic and automotive industries, with parts made of light metal alloys, such as laptop and mobile phone casings, suspension and car engine parts, and so forth.…”