Influence of electromagnetic field of work-coil on electroarc process
DOI:
https://doi.org/10.15587/1729-4061.2012.4602Keywords:
steel-smelting furnace, electromagnetic field, work-coil.Abstract
There are theoretical study and practical experiments of influence of electromagnetic field, generated by the work-coil, on the electroarc process of inductive steel-smelting furnaces. Zones of the electromagnetic field influence on the formation of an electric arc and heat fluxes in the cavity of electric steel-smelting furnace. There is a comparative analysis of the electric arc formation and the direction of heat fluxes under and without the influence of work-coil electromagnetic field. Thus, without a work-coil electromagnetic field, the wells in the molten metal are not deep; the heat fluxes from the electric arc are dispersed and directed to the top of the inwall that leads to premature wear. Dispersal of the arc on the surface of the metal increases the consumption of electrodes. When switching on the work-coil, its electromagnetic field forms an electric arc, providing deep penetration into the molten metal; wells in the metal become much deeper that improves the heating of the metal, providing high intensification of the melting process. The heat fluxes concentrate on the metal surface, reducing the harmful effects on the inwall.Supporting Agencies
- сталеплавильный комплекс
- электромагнитное поле
- индуктор.
References
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