Kolesnichenko A. Influence of new methods of electromagnetic stirring on forming of continuously cast medium and high carbon steel ingots

The original MHD devices that simultaneously create rotary torque and pulsatory electromagnetic pressure along ingot axe are developed. Their operation in resonance regimes assure stabilization of forming crust and intensification of thermal flux through mold walls, increasing the heat pick-up from ingot average on 15%, decreasing the depth of jet penetration coming from intermediate tundish to the mold on 80%, result in dendrites submelting in mushy zone of ingot formation. New technical solutions and electromagnetic systems for suppression of meniscus disturbance due to the feeding of electromagnetic stirrer by polyharmonic current and final implicit-pole stirrers that create due to considerable induced current in melt the powerful rotating torque are developed. The efficient stirring regimes and working parameters of electromagnetic stirrers were specified. That assure increasing of quality of continuously cast middle and high carbon steel ingots.