(1) silicon barium calcium alloy is a new and efficient composite alloy of barium alloy, which is a deoxidizer, desulfurizer and dephosphorization for steelmaking.It is inoculant and modifier in casting.
(2) barium can effectively reduce the vapor pressure of calcium in the steelmaking temperature range and increase the solubility of calcium in steel liquid.Compared with the silicon calcium alloy, the calcium content in the steel solution is about twice that of the silicon calcium alloy when the calcium content is even half that of the silicon calcium alloy, and calcium is also significantly increased in the steel solution.It is shown that barium is effective in protecting calcium and reducing the oxidation of calcium
(1) the graphitization core can be increased for grey casting, and type A graphite can be obtained for grey casting.
(2) for ductile iron casting, the graphite ball can be small, uniform and high spheroidized.
(3) significantly reduce the white orientations and improve the cutting performance of casting.