Ferrosilicon smelting raw materials: silica impurity content is relatively low. Silica impurities mainly refers Al2O3, MgO, CaO, P2O5, these impurities into the slag material are not conducive to the production of ferrosilicon antegrade. Therefore, to ensure the quality and smooth production of silica, Al2O3 content must be less than 0.5%, MgO and CaO content is less than 1% of the sum. Silica have a good anti-knock properties. Silica in the heating process, due to the phase transformation and dehydration may occur fragmentation, it will seriously affect the permeability of the material plane. Ferrosilicon smelting raw materials: carbon reductant (coke). Coke fixed carbon content greater than 82%. Ash requirements must be low, generally less than 8%. Coke ash too easy to make the sintering furnace slag material surface, the impact of the material surface permeability. Furnace slag or ash coke increased silicon alloy, an important reason for the slag becomes tacky. Buying high volatile coke silicon alloy, in general, the mechanical strength of low-silicon alloy prices, while in the heating process, the volatile easy to escape from the coke ensure a higher fixed carbon and mechanical strength point of view, at the request of coke volatile lower. However, considering the high volatile coke, which is usually higher than resistance. So volatile generally not restricted. Ferro Silicon wholesale, Xinjiang silicon alloy, North of metallurgical plants supplied by metallurgical plant in North Henan Anyang suburb. Anyang suburb North of Metallurgical Plant (www.aysjybyj.com) strong, credible, in Anyang ferroalloy and products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the North of metallurgical plant and you work into the brilliant, for a better future!