Industry Knowledge of AZS

AZS (Electro-fused Zirconia Corundum Brick) is a high-quality refractory product that is made by melting zircon sand and alumina in an electric furnace and then molding it into bricks. This material is widely used in high-temperature furnaces, such as glass furnaces and steel furnaces, due to its excellent thermal shock resistance, corrosion resistance, and wear resistance.

AZS bricks are classified into three grades: AZS-33, AZS-36, and AZS-41, each with different chemical compositions and physical properties. AZS-33 is suitable for glass furnaces with a service temperature below 1600℃, AZS-36 is suitable for glass furnaces with a service temperature between 1650℃ and 1700℃, and AZS-41 is suitable for glass furnaces with a service temperature above 1700℃.

The technical parameters of AZS bricks are determined by its chemical composition and physical properties. The main components of AZS bricks are zirconia (ZrO2), alumina (Al2O3), and silica (SiO2). The content of ZrO2 and Al2O3 in AZS bricks is usually more than 60%, and the content of SiO2 is less than 25%. The thermal conductivity of AZS bricks is low, and the thermal expansion is small. The compressive strength, flexural strength, and density of AZS bricks are high.

The production process of AZS bricks includes raw material preparation, mixing, molding, drying, firing, and finally inspecting. The raw materials are zircon sand, alumina powder, and silica powder. The mixture is prepared by mixing these three raw materials in a certain proportion and then grinding them in a ball mill. The wet mixture is then molded into bricks by pressing or extruding. The bricks are dried and fired in a furnace at a high temperature of about 1800℃. The quality of the AZS bricks is inspected by various methods, such as visual inspection, ultrasonic testing, and X-ray diffraction analysis.

In conclusion, AZS is a high-tech refractory material that has been widely used in the glass and steel industry. The classification, technical parameters, and production process of AZS bricks are important aspects of AZS industry knowledge. With the continuous development of technology, AZS bricks will play an increasingly important role in high-temperature furnaces and contribute to a variety of industrial applications.