the section sizes of ESR furnace ingot for heavy slabs are (mm): (400 ~ 950) x (800 ~ 3 200) with weight 5 ~ 70 t. The furnace type of ESR Furnace for heavy slabs and the process characteristics such as control of hydrogen content in steel
ingot segregation and surface quality are analyzed in this paper. At present the main power supply method for ESR furnace of heavy slabs is single-phase bi-electrode connecting in series
of which the main characteristics are operating simply and reliably less inductive resistance loss
higher power efficiency
small overheat of liquid steel and nice costal quality.