CaSi /Calcium Silicon Alloy/Calcium Silicon6030/6028

Because calcium has strong affinity with oxygen, sulfur, hydrogen, nitrogen and carbon in liquid steel, silicon calcium alloy is mainly used for deoxidation, degassing and sulfur fixation of liquid steel. The addition of silicon calcium into molten steel
produces a strong exothermic effect. Calcium turns into calcium vapor in the molten steel, which has a stirring effect on the molten steel and is beneficial to the floating of non-metallic inclusions. Afterc of silicon calcium alloy,non-metallic inclusions with large particles and easy to float up will be produced, and the shape and properties of non-metallic inclusions will be changed at the same time , so silicon calcium alloy is used to produce clean steel, high-quality steel with low oxygen and sulfur content, and special performance steel with extremely low oxygen and sulfur content. The addition of silicon calcium alloy can eliminate the nodulation of steel with aluminum as final deoxidizer in ladle nozzle and the blockage of tundish nozzle of continuous cast steel and ironmaking. In the outside furnace refining technology of steel, silicon calcium powder or core wire is used for deoxidation and desulfurization to reduce the content of oxygen and sulfur in steel to a very low level; It can also control the form of sulfide in steel and improve the utilization rate of calcium. In the production of cast iron, silicon calcium alloy not only deoxidizes and purifies, but also inoculates and helps to form fine-grained or spherical graphite; The graphite in gray cast iron is evenly distributed and the tendency of white cast iron is reduced; The quality of cast iron can be improved by desulfurization.