FIELD: metallurgy. SUBSTANCE: method involves performing electromagnetic measurement of falling flow of molten metal by means of primary coil, which is surrounded by upper part of metal flow; directing alternating electric current through coil, with current frequency being varied to provide for optimum electromagnetic effect (magnetic force and power loss ratio); adding direct current to alternating current to optimize electromagnetic efficiency of the system. EFFECT: increased efficiency and improved quality of metal. 27 cl, 6 dwg
