Steelmaking Technology for the Last 100 Years: Toward ...
DC-EAF exhibited 50% reduced consumption of the upper electrode compared with AC-EAF which employs three electrodes. Hot spot formation and flickers decreased considerably. Melt bath stirring was also made better, equivalent to 100 Nm 3 Ar injection, owing to DC electric current which pinches the melt toward the furnace center.
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