Development and Application of Dynamic Secondary Cooling Control System on Continuous Casting Slab

Physical Modeling of Steel Delivery during Thin Slab Continuous Casting

A full scale physical model of a thin slab caster with a four-hole design submerged entry nozzle (SEN) was constructed. On the basis of the dimensionless Reynolds and Froude similitude criteria, the fluid flow in a full-scale model is similar to that of the actual system and, hence, the data obtained from the water model can be applied to the actual system. In order to determine the optimum ope...

Online Dynamic Control of Cooling in Continuous Casting of Thin Steel Slabs Activities

1) Efficient fundamental model of solidification and temperature in thin slab casting: CON1D 2) Software Sensor, CONSENSOR 3) Online control system development, CONONLINE 4) Laboratory measurement of water flow and heat transfer during spray cooling 5) Steel plant experiments for model validation 6) Understanding defect formation during continuous casting 7) Control of mold fluid flow 8) Advanc...

Turbulent Flow and Particle Motion in Continuous Slab-Casting Molds

Turbulent flow in the continuous casting process involves transient phenomena and the transport of inclusion particles and plays an important role in the quality of the steel. As shown in Fig. 1, the molten steel jet entering the mold may carry inclusion particles (e.g. alumina) and argon bubbles. Liquid flux can also be entrained from the shear of the liquid flow across the top surface and for...

Real-time Model-based Spray-cooling Control System for Steel Continuous Casting

This paper presents a new system to control secondary cooling water sprays in continuous casting of thin steel slabs, CONONLINE. It uses real-time numerical simulation of heat transfer and solidification within the strand as a software sensor, in place of unreliable temperature measurements. The one-dimensional finite-difference model, CON1D is adapted to create the real-time predictor of the s...

Numerical Simulation of Slab Broadening in Continuous Casting of Steel