Introducció del carboni ferrocrom

Fusió amb forn elèctric reductor, utilitzant coc com a agent reductor, sílice o bauxita com a flux. La composició de l'escòria és generalment SiO227-33 per cent, MgO{30-34 per cent, Al2O326-30 per cent, Cr2O3<9.0%. due="" to="" the="" formation="" of="" chromium="" carbide,="" the="" product="" contains="" 4="" to="" 9%="" carbon.="" the="" capacity="" of="" the="" reduction="" electric="" furnace="" for="" modern="" smelting="" of="" ferrochromium="" is="" 10,000="" to="" 48,000="" kva,="" generally="" closed="" and="" fixed,="" and="" the="" smelting="" power="" consumption="" is="" 3,000-4,000="" kwh/ton.="" the="" electric="" furnace="" for="" smelting="" silicon-chromium="" alloy="" is="" similar="" to="" the="" ferrochromium="" reduction="" electric="" furnace.="" 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="" ferrochromium,="" silica,="" and="" coke="" as="" raw="" materials="" for="" slag-free="" smelting,="" and="" the="" smelting="" process="" is="" generally="" similar="" to="" that="" of="" ferrosilicon="" production.="" the="" smelting="" power="" consumption="" is="" about="" 3000-4000="" kwh="" per="">