(1) Ferro calcium silicon barium alloy is compound alloy which is composed of silicon,calcium ,barium ,and ferro. Not only used as steel deoxidizer,desulfurizer,but also the role of dephosphorylation .It is also used as the inoculant and modifier in casting.
(2)The temperature range of barium in the steel effectively reduce the vapor pressure of calcium, increase calcium solubility in molten steel. Compared with calcium alloy, calcium alloy with silicon barium liquid steel as a calcium source added, add the amount of calcium is calcium alloy adding even half the amount of time, the calcium content of the liquid steel is about twice the calcium alloy calcium in molten steel also significantly increased. It shows the liquid steel barium calcium effective

protection, reducing the calcium oxide, so as to achieve the purpose of calcium treatment of liquid steel