STARTING HEATING OF THE OXIDE MATERIAL TO PROVIDE TECHNOLOGIES BASED ON INDUCTION MELTING IN A COLD CRUCIBLE

Known methods of preliminary or initial heating of oxides, which provide a further process of induction melting of oxides in a cold crucible, are considered. Any method of starting heating must provide a certain minimum volume of oxide melt, which will be a receiver of the energy of the electromagnetic field created by the inductor in which the cold crucible is located. As a result of research, the author determined the range of permissible changes in the starting volume of the oxide melt. At the same time, the initial heating reliably ensures the organization of the further induction heating process. melts and minimizes oxycarbide contamination of the starting zone of the deposited ingot. Emphasis is placed on the exothermic process of organizing the starting volume of the oxide melt. The study has a well-founded theoretical part, which is confirmed by experimental results. Practical recommendations on the organization of the exothermic start-up process are formulated.

Authors: A. M. Lioubomirov

Direction: Electrical Engineering

Keywords: Oxides, starting heating, dispersed metal, starting melt volume, charge, oxide melt, cold crucible, melt bath, induction melting

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