NUMERICAL MODELS AND THEIR INDISPENSABILITY FOR FLEXIBLE CONTROL OF CONTINUOUS STEEL CASTING

Outdated machine for continuous casting of steel (CCM) has often fail to meet the requirements for production of the desired high quality carbon or stainless steel blank. Their control system acts as a so-called Black Box System, which provides operators the possibility of the system as needed to adjust and tune in order to achieve the required quality of steel produced. During the reconstruction of the caster is especially suitable to modify the secondary cooling, and slab CCM own rollways controlled cone possibly complemented well pronounced soft reduction. The necessary hardware modifications CCM cannot be designed without major upgrades the software control system based on the formation of new numerical models and their application to reduce of surface cracks and corners and central cavities or other defects. It was therefore developed a series of numerical models in the form of modules, control modules and data visualization modules. Based on the model of the temperature field of the strand. The inclusion of modules in the control system CCM, which depends on the capabilities of the caster and customer requirements, can be built into the server embeddable the second levels of management. This server communicates via OPC protocol with superiors and subordinates systems. It also includes off-line simulator that allows you to test and simulate different cooling strategy and settings for different steel grades. The flexibility of such a solution is presented for converting the caster with nine to thirteen engine cooling zones and optimizing the secondary cooling supported by on-line numerical optimization, the current temperature field slab. It is also demonstrated by the inclusion of a modular system management system CCM.