A thermomechanical modelling of continuous casting to master steel slabs internal soundness and surface quality

The development of high tensile strength steels with higher levels of alloying elements needs the implementation of operating means in the continuous casting machine to master slabs internal soundness and surface quality. In order to define optimal process parameters according to the characteristics of the different continuous casting machines and to optimize the revamping of older equipment, thermomechanical modelling of the steel slab behaviour during casting has been carried out. This paper presents the results of simulations performed to check the potential of this modelling.

[1]  J. Lehmann,et al.  Experimental Study and Modeling of the Precipitation of Non-metallic Inclusions during Solidification of Steel , 1995 .

[2]  Man Yeong Ha,et al.  Numerical analysis of secondary cooling and bulging in the continuous casting of slabs , 2001 .

[3]  Kyu Hwan Oh,et al.  A new criterion for internal crack formation in continuously cast steels , 2000 .

[4]  Michel Bellet,et al.  A Two-dimensional Finite Element Thermomechanical Approach to a Global Stress-Strain Analysis of Steel Continuous Casting , 2004 .

[5]  J. Drezet,et al.  Numerical simulation of deformation-induced segregation in continuous casting of steel , 2001 .

[6]  K. Schwerdtfeger,et al.  Macrosegregation in continuously cast steel slabs: preliminary theoretical investigation on the effect of steady state bulging , 1981 .

[7]  Alban Heinrich Modélisation thermomécanique de la coulée continue d'acier en deux dimensions , 2003 .

[8]  M. Bobadilla,et al.  Continuous casting of steel: a close connection between solidification studies and industrial process development , 1993 .

[9]  Hiroshi Imura,et al.  Effect of Bulging and Solidification Structure on Segregation in Continuously Cast Slab , 1984 .

[10]  F. Costes Modélisation thermomécanique tridimensionnelle par éléments finis de la coulée continue d'aciers , 2004 .

[11]  Christoph Beckermann,et al.  A transient simulation and dynamic spray cooling control model for continuous steel casting , 2003 .

[12]  Frédéric Pascon 2D1/2 Thermal-Mechanical Model of Continuous Casting of Steel Using Finite Element Method , 2002 .

[13]  P. J. Wray,et al.  Effect of carbon content on the plastic flow of plain carbon steels at elevated temperatures , 1982 .