The application cases of silicon nitride combined with silicon carbide materials are extensive and diverse. The following are several typical application examples:

‌1. Iron blast furnace and non-ferrous metal smelting‌:

Silicon nitride bonded silicon carbide refractories are widely used in the iron and steel metallurgical industry due to their good thermal shock stability, slag resistance and oxidation resistance. Especially in the lower part of the blast furnace body, such as the furnace waist, the use of this type of material is particularly effective. In addition, in the non-ferrous metal smelting industry, silicon nitride combined with silicon carbide materials are gradually being used due to the non-wetting properties of their products to molten metals such as aluminum, copper, and magnesium.

‌2. Aluminum electrolysis cell side wall material‌:

In recent years, silicon nitride combined with silicon carbide bricks have become the mainstream choice for the side wall materials of aluminum electrolytic cells. During the aluminum electrolysis process, the side walls come into direct contact with molten alumina and electrolyte, releasing a large amount of heat. Silicon nitride combined with silicon carbide material fully meets the requirements of aluminum electrolytic cell side wall materials due to its high thermal conductivity, no reaction with aluminum, sodium and molten cryolite electrolyte, low apparent porosity and good oxidation resistance. Gradually replaced traditional carbonaceous materials‌.

‌3. High-end ceramic tools, wear-resistant parts and high-temperature structural components‌:

As a high-performance composite material, silicon nitride combined with silicon carbide slurry not only inherits the original advantages of silicon nitride and silicon carbide, but also achieves a qualitative leap in formability, sintering and the comprehensive performance of the final product. Therefore, it is widely used in the manufacture of high-end ceramic tools, wear-resistant parts and high-temperature structural components, showing excellent performance and wide application potential‌.

‌4. Silicon nitride combined with silicon carbide kiln furniture‌:

Silicon nitride combined with silicon carbide kiln furniture is a high-temperature structural ceramic product made of high-purity silicon carbide powder and a specific process. This type of kiln furniture has excellent anti-oxidation properties and high-temperature stability, so it is widely used in kilns in the ceramic, glass and other industries to carry and fire various ceramic products. The service life of silicon nitride bonded silicon carbide kiln furniture can be further extended by improving the material’s oxidation resistance or forming an anti-oxidation coating on its surface‌.

Stručně řečeno, nitrid křemíku v kombinaci s materiály z karbidu křemíku prokázal důležitou aplikační hodnotu v mnoha oblastech, jako je metalurgie oceli, elektrolýza hliníku, výroba keramiky a pece, díky svému vynikajícímu výkonu a širokému aplikačnímu potenciálu.‌

Zavázali jsme se vyrábět produkty z karbidu křemíku více než 30 let, takže máme bohaté zkušenosti s výrobním zpracováním. Vždy zkoumáme nirtid křemíku v kombinaci s materiály z karbidu křemíku, abychom zbavili nové desky tohoto odvětví.