Systems and methods of electromagnetic influence on electroconducting continuum
Thus, as shown by an exact electrodynamic computation of EMBF and the estimations described above of the velocity of turbulent flows arising due to their effect, application of amplitude- and frequency-modulated helically traveling (rotating and axially traveling) electromagnetic fields in metallurgical and chemical technologies and foundry can considerably increase the hydraulic efficiency of MHD facilities, intensify the processes of heat and mass transfer in technological plants, significantly increase their productivity, considerably decrease energy consumption for the production of metals, alloys, cast articles, and chemical products, and improve their quality.
1 - 4 . (canceled)
5 . A method of continuous out-of-furnace purification of ferrous metals melts from detrimental impurities, wherein the melt flowing along a long lined pipe is mixed with an alloying additive or with reagent under the action of helically traveling magnetic fields excited by m-phase systems of helical currents, wherein said currents are frequency- and amplitude-modulated by periodically changing in time sufficiently arbitrary functions, wherein said amplitude modulation is periodically changed along the pipe axis.
6 . A method according to claim 5 , wherein said amplitude modulation depth is varying along the pipe axis.
7 . A method according to claim 5 or 6 , wherein the frequency modulation deviation is changed along the pipe axis.
8 - 30 . (canceled)
31 . A method of continuous out-of-furnace alloying of liquid metals in a flow of ferrous metals melts from detrimental impurities, wherein the melt is flowing along a long lined pipe and is mixed with an alloying additive or with reagent under the action of helically traveling magnetic fields excited by m-phase systems of helical currents, wherein said currents are frequency- and amplitude-modulated by periodically changing in time functions, wherein said amplitude modulation is periodically changed along the pipe axis.