Characteristics of silica-barium-calcium

  Calcium silicon-barium can be used as a deoxidizer, as a desulfurization agent effect is also good, phosphorus can also meet the requirements of the preparation method of calcium silicon-barium inoculant is mainly the following steps, the first chromium alloy, calcium silicon-barium, phosphate crushed into two millimeters to six millimeters of particles, according to the example of fifteen hundred than two thousand five hundred than five for mixing; in the temperature conditions of fifteen hundred degrees Celsius will be obtained under the conditions of the mixture for The mixture is melted for five minutes and then cooled; the cooled mixture is made into powder with manganese vanadium nitride in the ratio of two thousand to one thousand by mass using the atomization method; the blocks are sintered in a nitrogen-protected high-temperature furnace to obtain the sintered mixture; the sintered mixture is mixed and crushed with silicon-barium alloy in the ratio of one thousand to one hundred by mass using the mechanical mixing method. Barium effectively reduces the vapor pressure of calcium in the steelmaking temperature range, which can increase the solubility of calcium in the steel. The average post-furnace oxygen of adding silicon-calcium composite deoxidizer is 372.4 ppm, the average deoxidation degree is 2.327 ppm/kg deoxidizer, the average temperature reduction rate is 3.92℃/min, and the efficiency of increasing silicon is 74.85%. The deoxidizing effect, silicon efficiency, and temperature reduction rate of silica-barium-calcium alloy deoxidizer are better than the original silica-calcium compound deoxidizer. It can be seen that the use of calcium silicon-barium is relatively widespread, and the development prospects are very good