Abstract
Control of steel flow to the mould during continuous casting is critical to ensure steel cleanness and surface quality. Existing methods of assessing steel flow in the submerged entry nozzle (SEN) and mould are based on mathematical and physical modelling; there is no means of determining actual conditions within the SEN, which is fundamentally an opaque tube. Difficulties are experienced when studying significant process variations such as stopper disturbances, air entrainment, asymmetry of flow and clogging in the tundish nozzle. Work to design and test an electromagnetic technique to visualise the steel flow pattern in the tundish pouring nozzle is reported. Initial development work has been extended by pilot plant and production plant trials at Corus.
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