Introduction to the Refractory Challenges in High-Temperature Troughs

In the industrial field, high-temperature troughs are widely used in various high-temperature processes such as glass melting, metal smelting, and chemical reactions. However, these high-temperature environments pose significant challenges to the refractory materials used in troughs. Traditional refractory materials often struggle to withstand extreme temperatures, corrosion, and mechanical stress, leading to frequent replacements and increased production costs. For example, in a glass melting furnace, the temperature can reach up to 1500 - 1600 °C, and ordinary refractory materials may only last for a few months under such conditions.

What is AZS Trough Brick?

AZS trough brick, short for fused alumina-zirconia-silicate refractory material, is a revolutionary solution to the refractory challenges in high-temperature troughs. It is composed of approximately 40 - 45% alumina (Al₂O₃), 30 - 35% zirconia (ZrO₂), and 20 - 25% silica (SiO₂). These specific chemical compositions endow AZS trough bricks with excellent high-temperature resistance, corrosion resistance, and mechanical strength.

Comparison with Other Refractory Materials

Compared with traditional refractory materials like clay bricks and high-alumina bricks, AZS trough bricks have superior performance. Clay bricks typically have a maximum service temperature of around 1300 - 1400 °C, while AZS trough bricks can withstand temperatures up to 1700 - 1800 °C. In terms of corrosion resistance, AZS trough bricks are much more resistant to the attack of molten glass, metals, and chemical substances. For instance, in a glass production line, the service life of AZS trough bricks can be 3 - 5 times longer than that of clay bricks.

Manufacturing Process of AZS Trough Bricks

The manufacturing process of AZS trough bricks is a precise and complex one, which ensures the high quality of the final products. First, high-purity raw materials are selected, including alumina powder, zirconia powder, and silica powder. These raw materials are then mixed in a specific ratio and melted in an electric arc furnace at a temperature of about 2000 - 2200 °C. After melting, the molten material is cast into molds and slowly cooled to form the desired brick shape. This controlled cooling process helps to reduce internal stresses and improve the mechanical properties of the bricks.

Quality Assurance and ISO Certification

The use of high-purity raw materials significantly enhances the quality of AZS trough bricks. High-purity alumina, zirconia, and silica ensure the stability of the chemical composition and the performance of the bricks. Moreover, our AZS trough bricks have obtained ISO international certification, which is a symbol of our strict quality control system. ISO certification guarantees that our products meet the highest international standards in terms of quality, safety, and environmental protection.

Real-World Applications of AZS Trough Bricks

AZS trough bricks have been widely used in various industries around the world. In the glass industry, they are used in glass melting furnaces, forehearths, and feeder channels. For example, a large glass manufacturer in Europe replaced their traditional refractory materials with our AZS trough bricks and achieved a 40% reduction in maintenance costs and a 30% increase in production efficiency. In the metal smelting industry, AZS trough bricks are used in ladles, tundishes, and furnaces, providing excellent protection against high-temperature molten metals.