The main method of ferroalloy production: classification by heat source. Heating method. Heat electrothermal smelting process is mainly electricity, carbonaceous reducing agent oxide ore using a continuous operating process and in reducing electric furnace. Silicon thermal power. Heat silicon thermal power smelting process is mainly electricity, heat the remaining time for the release of silicon oxide, silicon (ferrosilicon, silicon manganese alloys and intermediate products of silicon-chromium alloy) as a reducing agent in the oxide ore. Production is carried out intermittent operations in the refining electric furnace. The main element is generally higher melting point alloy, or it is difficult to restore industrial silicon oxide, it is difficult refining pure silicon metal industry prices, if it is easier to restore together with iron smelting. Use in the steel industry silicon alloy smelting companies, including iron not only harmless, but because fusible molten steel anti relatively favorable. Therefore, the process of steelmaking deoxidation and alloying, mostly added in the form of ferro-alloys. Ferroalloy generally very brittle and can not be used as a metallic material.