Applications in the field of refractories
Blast furnace gunsmud: Ferrosilicon nitride is widely used in blast furnace blast mud, which can significantly improve the opening and plugging performance of blast furnace mud and meet the demand of blast furnace tapping. Especially in the mud of modern large blast furnaces, ferrosilicon nitride has become an indispensable component.
Iron trench pouringmaterialFerrosilicon nitride is also used in iron trench castables, which can improve the slag erosion resistance and oxidation resistance of castables. For example, inAl2O3-SiC-CmaterialThe addition of ferrosilicon nitride can significantly improve its high temperature flexural strength and slag erosion resistance.
Magnesia pouringmaterial: The addition of ferrosilicon nitride to the magnesia castable can improve its refractory resistance and load softening temperature, and further enhance its performance.
Applications in the field of steelmaking
Oriented silicon steel production: granular ferrosilicon nitride was originally used in the production of oriented silicon steel, which can stably add a certain amount of nitrogen to the molten steel and improve the strength and performance of the steel.
High-strength microalloyed steel: ferrosilicon nitride in productionHRB400 steelsinewsand other high-strength microalloyed steel grades. The use of ferrosilicon nitride can reduce the alloying cost and improve production efficiency.
characteristics of silicon nitride
Due to its good high-temperature performance, erosion resistance, wear resistance and sintering properties, high thermal conductivity, small thermal expansion coefficient and other advantages, ferrosilicon nitride is widely used in blast furnace clay, and also has broad application prospects in refractory materials such as carbonaceous refractories, high-temperature structural materials, and magnesia castables.
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