Melting and casting reactive materials in "bottomless" cold crucible

Direct melting of scrap material by induction heating for high melting temperature alloys (Ti, Nb, Zr, etc.) and polycrystalline materials (Si) is investigated using numerical models. The commercial package COMSOL is used to investigate power dissipation in the melt zone, efficiency and coil voltage variation according to the number of crucible segments, frequency and current magnitude. The finite element based code is used for the fluid dynamics accounting for continuous adjustment of the electromagnetic field