And removal of carbon oxide phase: Oxidation of ordinary power electric arc furnace steelmaking, usually charge clear solution, complete oxidation of the sample analysis to grilled slag phase of this process. Oxygen is also believed to be from the start or add mine decarbonization. The main task of oxidation is the oxidation of the molten steel carbon, phosphorus; removing gases and inclusion; steel was uniformly heat. Decarbonization is an oxide of important operating processes. In order to ensure the purity of steel requires decarbonization greater than about 0.2%. With the development of refining technology, electric arc furnace oxidation refining or ladle refining mostly moved furnace. Either steelmaking method, you need to remove oxygen in the bath C, Si, Mn, P and other impurities, high efficiency deoxidizer, after the oxidation refining, Shandong high efficiency deoxidizer, steel liquid reaches a certain ingredient and temperature. If the steel is not oxygen, the embryo will not get the correct casting solidification structure. High oxygen content in steel, but also produce skin bubbles, porosity and other defects, and exacerbate the harmful effects of sulfur. But also generate excessive oxide impurities, Liaoning high-performance oxygen scavenger, reduce the mechanical properties of steel ductility, impact toughness. Therefore, we must in the steel or casting process, adding deoxidizer appropriate to reduce steel liquid oxygen, remove excess oxygen steel.