USE OF EXTERNAL PHYSICAL INFLUENCES TO IMPROVE THE TECHNOLOGY OF CONTINUOUS CASTING OF STEEL
Keywords:
intermediate ladle, refining, metal hydrodynamics, nonmetallic inclusions (NI), crystallizer, electromagnetic mixing (EMM), vibration, heat-mass transfer, econdary cooling zone (SCZ), crystallization, structure, mechanical propertiesAbstract
In laboratory and real conditions, the influence of external physical effects on the formation of continuously cast billets was investigated. The design parameters of the "turbo-stop" device are optimized and rational parameters for purging the liquid metal with an inert gas in the intermediate ladle are proposed. The effect of electromagnetic stirring of the solidifying metal in the CCM
crystallizer on the heat-mass transfer processes in it is established. The device and modes of vibrational processing of blanks in the secondary cooling zone have been developed, which significantly improve the structural and physico-mechanical characteristics of the cast metal.
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