FIELD: metallurgy.
SUBSTANCE: control method of ore-heating furnace operating mode for producing zirconia alumina involves measurement of voltage and current during melting, control of feeding the charge and degree of the electric arc development. Also, the value of the constant component of the phase voltage of each electrode is measured, then it is compared to a predetermined optimum value and in case of deviation from a set point the electric mode or dosage of the charge is adjusted to eliminate the deviation of the values of the constant component of phase voltage.
EFFECT: stabilisation of the melting process.
3 dwg
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