Smelting in a reduction electric furnace, using coke as a reducing agent, silica or bauxite as a flux. The slag composition is generally SiO227～33%, MgO30～34%, Al2O326～30%, Cr2O3<9.0%. Due to the formation of chromium carbide, the product contains 4-9% carbon. The reduction electric furnace capacity of modern smelting ferrochromium is 10000～48000 kVA, generally adopts closed fixed type, and the smelting electricity consumption is 3000～4000 kW·h/ton. The electric furnace for smelting silicon-chromium alloy is similar to the ferrochromium reduction electric furnace, and there are two smelting methods: one-step method and two-step method.
One-step smelting with chromite, silica, coke and flux. The two-step method uses carbon ferrochrome, silica, and coke as raw materials for slag-free smelting. The smelting process is generally similar to that of ferrosilicon production. The smelting power consumption is about 3000-4000 kWh per ton.
