In the process of steelmaking, it is necessary to use silicon barium calcium. This is because silicon barium calcium is a good new deoxidizer in steelmaking, and has good desulfurization and phosphorus capacity, playing a very important role in smelting steel grades with low sulfur and phosphorus.
It has broad application prospects in special steel system. Si Ba Ca alloy is a new composite alloy in barium alloys, which is a deoxidizer, desulfurizer and dephosphorizing agent for steelmaking; It is an inoculant and modifier in casting. Barium reduces the vapor pressure of calcium and increases the solubility of calcium in molten steel within the range of steelmaking temperature. Compared with the silicon calcium alloy, when the silicon barium calcium alloy is used as the calcium source to add into the molten steel, the calcium content in the molten steel is about twice that of the silicon calcium alloy even if the calcium content is half of the silicon calcium alloy, and the calcium content in the molten steel is also significantly increased. It fully shows that barium protects calcium in molten steel and reduces the oxidation of calcium, thus achieving the purpose of calcium treatment of molten steel. The combination of elements such as silicon, aluminum and calcium with oxygen can play a better role in deoxidation and desulfurization. At the same time, some trace elements can purify molten steel and prevent nozzle from clogging, which can not only improve the comprehensive effect of alloy absorption, but also reduce the index of harmful substances such as sulfur and phosphorus to about 0.1 without adding any elements. It has the economic effect of reducing the production costs of steelmaking, casting, ironmaking and other smelting enterprises to varying degrees, Therefore, the application effect in many steel plants has been widely verified, and is liked by customers.
