Ferroalloys purposes: as a deoxidizer. Steelmaking is a method of removing iron oxide liquid carbon, phosphorus and other impurities. Upon completion of these tasks silicon barium oxide, calcium inoculant while the liquid steel has absorbed oxygen Tianjin silicon barium calcium inoculant, if the presence of oxygen will greatly reduce the performance of the steel in the steel. So we need to add some bound with oxygen relatively strong, and its oxidation products can be successfully excluded Jilin silicon barium calcium inoculant from liquid steel, so that the oxygen content in molten steel to reduce elements. Ferroalloys purposes: as a deoxidizer. Commonly used deoxidizer manganese, silicon and aluminum. These elements more ferroalloy Fe-Mn, Fe-Si and Al added to molten steel in the form. Elements and oxygen binding capacity, the stronger, the higher oxygen content in the steel, the better its deoxidation effect.