FIELD: metallurgy, possibly installation of electric arc refining in vacuum.
SUBSTANCE: method comprises steps of measuring irradiation intensity at least of two separate zones or two separate lines of spectrum of base of melted metal in visible range; mutually dividing received intensity values; comparing result of division with predetermined admissible value; according to comparison result evaluating presence of discharge and its type.
EFFECT: enhanced reliability and responsibility for determining type of discharge, explosion proofness of melting process.
1 dwg
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