Silicon calcium alloy applications

1. Silicon calcium alloy will have a strong exothermic effect after being added to the molten steel. After calcium is added to the molten steel, it will become calcium vapor in a high temperature environment, which will have a stirring effect on the molten steel as a whole, which is beneficial to non-metallic inclusions. float to the surface.

2. Silicon calcium alloys will change the shape and properties of non-metallic inclusions. Therefore, silicon-calcium alloys are used to produce clean steels and special performance steels with particularly low sulfur and oxygen content.

3. Silicon calcium alloy can also be used to eliminate nodules (when aluminum is used as the final deoxidizer for steel at the ladle nozzle), and can also solve the problems of clogging of the tundish nozzle of continuous cast steel; in the refining technology outside the steel furnace When using silicon-calcium powder or silicon-calcium cored wire for deoxidation and desulfurization, the content of sulfur and oxygen in steel can be reduced to a very low level, and at the same time, the form of sulfide in steel can be controlled to improve the utilization efficiency of calcium.

4. In the process of cast iron production, the silicon-calcium alloy can also play the role of an inoculant, which can help the formation of fine particles or nodular graphite.