Silicon barium calcium is a kind of compound deoxidizer, which not only has a good deoxidizing effect in iron and steel smelting, but also has a certain function of purifying molten steel.
Silicon and barium in silicon, barium and calcium can react with oxygen to form oxide impurities, which float on the surface of molten steel and are easy to remove.
Barium effectively reduces the vapor pressure of calcium in the range of steelmaking temperature and increases the solubility of calcium in molten steel.
Compared with Si-Ca alloy, Si-Ba-Ca alloy is added to molten steel as a source of calcium. Even if the amount of calcium added is half of that of Si-Ca alloy, the content of calcium in molten steel is about twice that of Si-Ca alloy, and the content of calcium in molten steel increases obviously.
It is fully explained that barium can effectively protect calcium in molten steel and reduce the oxidation of calcium, so as to achieve the purpose of treating molten steel with calcium.
Silicon barium calcium alloy deoxidizer is a new type of composite alloy in barium alloy.
It is not only a deoxidizer and desulphurizer for steelmaking, but also has the function of phosphorus removal.
It is the inoculant and improver in casting.