Calcium aluminate
Calcium aluminate refining slag is mainly composed of CaO-Al2O3. Calcium aluminate sintering refining slag is added to ladle refining processes such as converter and electric furnace, which can melt rapidly. It can increase the fluidity of molten steel, raise little dust during the feeding process, and do not produce F ions. The appropriate CaO-Al2O3 composition ratio can reasonably deoxidize the molten steel, desulfurization and impurity removal. The submerged arc has a good effect in use, reducing the burning of the arc on the stove, and improving the ladle age can realize the fluorine free steelmaking, reduce the erosion of the furnace lining, and improve the product yield, reduce production costs and reduce environmental pollution. This product is widely used in large and medium-sized steel plants in Hebei, Shandong, Jiangsu, Hubei, etc.