CONTROL MODE OF ELECTROSLAG INSTALLATION OPERATING REGIME AND FACILITY FOR ITS IMPLEMENTATION Russian patent published in 2008 - IPC C22B9/18 H05B7/148 

FIELD: metallurgy.

SUBSTANCE: invention concerns electroslag remelting and can be used in mode controllers of electroslag furnace. Method includes control of operating current and definition by its modulated curve of formation moment of drop on the end of electrode. Smelting is implemented in pulsed operation by means of current interruption at the moment of drop of liquid metal initiation on the end of electrode, defining by curve of flux bath active resistance, with creating operational current pause of duration equal to time of tip leakage at purely thermal process of electrode burn-off and further rising of current till operating value after breakaway of the first drop and at the moment of further drop formation. Facility is additionally outfitted by three-input block of meter of tip leakage electrode metal into no-current condition, containing of electronic switch, constant-current source, voltage inverter and second threshold element. Invention provides rising of electroslag remelting efficiency and quality of ingot metal by means of drops breakage of electrode metal at the moment of its formation on electrode.

EFFECT: productivity improvement of electroslag remelting and metal quality.

3 cl, 2 tbl, 2 dwg