At present, ferrosilicon nitride is mainly used in refractory materials such as casting materials, gun clay and composite refractory materials.
1. Casting materials: The use of ferrosilicon nitride in casting materials is mainly focused on Al2O3-SiC-C cast iron trench casting materials, magnesia casting materials and high aluminum casting materials.
2. Gun Slurry: Gun slurry is an important refractory material used to block the blast furnace borehole. During borehole, slag and iron come out of the borehole at the same time. As blast furnaces improve and service life increases, and with the advent of new iron smelting technologies, boreholes should be better able to withstand chemicals, slag and iron erosion. In addition, it should be able to withstand high temperatures, be easy to fill, and be stable at high temperatures. In addition, it should be easy to open and close, as well as protect the hearth.
During use, the iron flow in the cannon solution containing ferrosilicon nitride is stable, free of anomalous spatter and red spots. It has high flexural strength at high temperatures and resistance to molten iron erosion. It can achieve stable iron tapping for more than 60 minutes and block the iron completely. Mouth, there is no phenomenon of wind and fire. Composite Refractory MaterialsMade from two or more refractory raw materials with different properties. They combine to create new properties on a macro (micro) basis using physical or chemical methods.
