Silicon nitride bonded silicon carbide brick is an important new type of refractory material. The life of industrial kilns using it can be more than doubled compared to using traditional refractory materials. Therefore, Kerui silicon nitride bonded sic bricks have the advantages of energy saving, increased life, and no pollution to the environment.
Support customized size, shape, raw material ratio
Silicon Nitride Bonded Silicon Carbide Brick Parameter
| Item | Index | |
|---|---|---|
| SiC, % | ≥ | 72 |
| Si3N4, % | ≥ | 21 |
| Fe2O3, % | ≤ | 0.5 |
| Apparent Porosity, % | ≤ | 18 |
| Bulk Density, g/cm³ | ≥ | 2.65 |
| Cold Crushing Strength, MPa | ≥ | 150 |
| Modulus of Rupture, MPa | ≥ | 40 |
Silicon Nitride Bonded Silicon Carbide Brick Properties
- High high temperature strength: Its high temperature flexural strength is 4-8 times that of ordinary refractory materials. Even at high temperatures of 1200-1400℃, its strength and hardness are almost the same as at room temperature.
- High thermal conductivity: The thermal conductivity of silicon nitride bonded silicon carbide brick is 7-8 times that of general refractory bricks. Excellent thermal conductivity helps to balance the temperature distribution in the kiln quickly.
- Good thermal shock stability: Its thermal expansion coefficient is small and it is not easy to produce thermal stress. In an environment with rapid changes in high temperature, it can still maintain structural integrity and stability.
- Excellent corrosion resistance: The material has excellent corrosion resistance to chemicals. This makes it perform well in harsh environments such as non-ferrous metal smelting.
- Strong oxidation resistance: Both silicon nitride and silicon carbide are strong antioxidant materials. Even in a high temperature oxidizing atmosphere, it can maintain good stability and is not easily eroded by oxidation.
- High hardness and high wear resistance: The Mohs hardness of silicon nitride vs silicon carbide bricks is about 9. It has a high hardness among non-metallic materials. It is also suitable for applications in high wear environments.
Application range of Silicon Nitride Bonded Silicon Carbide Brick
- Non-ferrous metal smelting industry: Silicon-nickel composite silicon carbide brick can be used for electrolytic cell lining. This refractory brick for sale can also be used as spout bricks and waist and belly bricks. It is resistant to erosion and scouring and improves smelting efficiency.
- Steel industry: In the process of steelmaking and rolling, we use it as ladle lining and blast furnace tuyere top.
- Other industrial fields: In addition, silicon nitride bonded silicon carbide bricks are also widely used in other high temperature and high corrosion environment industrial fields. For example, the ceramic industry, glass industry, aerospace industry…
Kerui Refractory – Strong Strength
High Annual Output
Our company now has several high-temperature tunnel kilns, fully automated batching production lines, product R&D centers and testing bases. Moreover, the annual output of refractories of the Kerui factory exceeds 250,000 tons.
Professional Team
Kerui Refractory has a professional R&D and engineering technology team. They strictly control the material ratio, control each plan, and accurately meet customer needs.
Qualification Certification
Kerui Refractory has ISO/CE/SGS certificates, invention patents, utility model patents, etc. We ensure that the refractory bricks we produce meet international standards and the quality is guaranteed.
Kerui Refractory – Comprehensive Service
- Factory direct sales: Kerui Refractory ensures the price advantage of our refractory products through direct sales from manufacturers.
- Complete specifications: We provide silicon carbide shapes & nitride bonded bricks of various specifications to meet the needs of different customers.
- Customization support: Kerui provides personalized customization services according to the special needs of customers. We ensure that our products are perfectly matched with the actual applications of customers.
- Perfect after-sales service: Kerui Company has specially established a professional sales service team. We ensure that every customer can enjoy Kerui’s thoughtful one-stop service before, during and after-sales. Check out clients we’ve served on Pinterest.
