In the critical industrial scenarios such as metallurgical blast furnaces, there is an urgent need for high - performance refractory materials. Silicon nitride bonded silicon carbide bricks have emerged as the top choice in the upgrade of refractory materials for metallurgical blast furnaces. Let's explore why they have gained such popularity in the industry.

Core Features and Performance Advantages

Silicon nitride bonded silicon carbide bricks possess several outstanding properties. Firstly, they have high strength. Tests from third - party laboratories show that their compressive strength can reach up to 300 MPa, which is significantly higher than traditional refractory materials. This high strength enables them to withstand greater pressure in high - temperature industrial environments.

Secondly, these bricks have excellent thermal conductivity. With a thermal conductivity of about 20 - 30 W/(m·K), they can quickly transfer heat, effectively reducing the temperature difference inside the furnace and improving energy utilization efficiency. In contrast, traditional refractory materials usually have a thermal conductivity of only 5 - 10 W/(m·K).

Moreover, their thermal shock resistance is remarkable. They can endure rapid temperature changes without cracking or spalling. The number of thermal shock cycles they can withstand is more than 100 times, while traditional materials may fail after only a few dozen cycles.

Value in Specific Industry Applications

In the non - ferrous smelting industry, when used as the lining of non - ferrous smelting furnaces, silicon nitride bonded silicon carbide bricks can effectively resist the erosion of high - temperature molten metals and slag. In a well - known non - ferrous smelting plant in Europe, after replacing traditional refractory materials with these bricks, the service life of the furnace lining has been extended from 1 - 2 years to more than 3 years, and the production efficiency has increased by about 20% due to reduced maintenance time.

For the inner wall of blast furnaces, the high - strength and heat - resistant properties of these bricks ensure the long - term stable operation of the blast furnace. In domestic large - scale metallurgical enterprises, the use of silicon nitride bonded silicon carbide bricks has significantly improved the working conditions of the blast furnace, reducing the frequency of repairs and improving the overall production capacity.

In the ceramic industry, as kiln furniture, they can provide a stable high - temperature environment for ceramic firing. A ceramic factory in Asia reported that after using these bricks, the firing cycle has been shortened by about 15%, and the quality of ceramic products has also been improved.

Credibility and Market Recognition

The performance of silicon nitride bonded silicon carbide bricks has been verified by authoritative third - party laboratory tests. These test reports provide detailed data on various performance indicators, making the technical value of the product quantifiable and reliable.

In the international market, they have won the trust of many well - known customers. They have served more than 80% of the export - oriented customers in Europe and America, covering more than a dozen countries. In the domestic market, many large - scale metallurgical enterprises have long - term cooperation with the manufacturer, and the domestic market share has reached about 30%.

Conclusion and CTA

Whether you are a decision - maker or an engineer in the industry, silicon nitride bonded silicon carbide bricks can provide you with a solution that meets your needs. With their excellent performance, wide - range applications, and strong market recognition, they are the ideal choice for upgrading refractory materials in high - temperature industrial scenarios.

Explore More About Silicon Nitride Bonded Silicon Carbide Bricks