Crystallization method for producing block made of material whose melt is electrically conductive, comprises e.g. providing crystallization system, loading container with material and melting it and initiating crystallization

摘要

Crystallization method for producing a block made of a material whose melt is electrically conductive, comprises: (a) providing a crystallization system comprising a container, a heater-magnet module, and a control- and a power supply unit; (b) loading the container with the material to be processed and melting the material using heater-magnet module; (c) initiating the crystallization from the bottom of the container by cooling the melt, after the material reaches the molten state; and (d) generating a traveling magnetic field in the side sections and in the ceiling sections. Crystallization method for producing a block made of a material whose melt is electrically conductive, comprises: (a) providing a crystallization system comprising (i) a container for receiving a melt made of the material, (ii) a heater-magnet module, which encloses the container, and exhibits at least three coil-shaped side sections and at least two spiral-shaped ceiling sections, and (iii) a control- and a power supply unit, with which the respective side- and ceiling sections are separately provable with a predeterminable current intensity and phase shift; (b) loading the container with the material to be processed and melting the material using heater-magnet module; (c) initiating the crystallization from the bottom of the container by cooling the melt, after the material reaches the molten state; and (d) generating a traveling magnetic field in the side sections passing from bottom to top and generating a traveling magnetic field in the ceiling sections passing from outer side to inner side during the crystallization, such that a circular vortex flow is generated at the melt surface. An independent claim is also included for a crystallization system for producing blocks made of the material whose melt is electrically conductive, comprising (i), (ii) and (iii), where the control- and power supply unit are designed for generating a traveling magnetic field in the side sections passing from bottom to top and for generating a traveling magnetic field in the ceiling sections passing from outer side to inner side.