Ferroalloy production technology trends: The computer controlled electric furnace smelting process. With a computer-controlled electric furnace production process, such as ingredients, feed on materials, electrode pressure release, electric power conditioning, cooling water and control the flue gas purification system, can work to improve the electric load and work rate, silica-calcium alloy, avoid operating errors caused by fluctuations in furnace conditions and equipment accidents. Iron alloy is an alloy composed of one or two or more fused metallic or non-metallic elements and iron together. For example, silicon and iron Fe2Si ferrosilicon is formed, Fe5Si3, FeSi, FeSi2 silicide, etc., which are the main components of ferrosilicon, ferrosilicon and silicon mainly FeSi FeSi2 form, in particular FeSi more stable.