The main method of ferroalloy production: vacuum resistance furnace. Production of low carbon micro-carbon ferrochrome, when nitride ferrochrome, ferromanganese and other products using vacuum resistance furnace method, the main equipment for the vacuum resistance furnace. Decarburization vacuum furnace is in the solid state under vacuum conditions, the block will press forming material into the furnace smelting wholesale CaSi powder, calcium silicon powder manufacturers rely on the current through the resistor heating hot electrode, while the vacuum pump Gas production is carried out intermittently. Ferroalloys: ferroalloys production methods. Basic equipment: Equipment submerged arc furnace is more complex, in addition to attention outside the furnace comprises an electrode holding system, the electrode pressure release device, click on the lifting system, charging system, the iron equipment, protective equipment, electrode cooling system, power supply equipment.