Wear resistant alumina ceramic

In the mechanical industry, alumina ceramics are mainly used for their wear resistance, corrosion resistance, and high strength characteristics to replace ordinary metal parts, reduce operation and maintenance costs, and improve equipment stability. They are mainly applied to wear-resistant parts such as mechanical sealing rings, shaft sleeves, bearings, impellers, valves, liners, etc., and are widely used in water pumps, fans, compressors, mining machinery, conveying equipment, etc. For example, 99% alumina ceramic sealing rings have better wear and corrosion resistance compared to 95% alumina sealing rings, and their service life can be increased by more than 30%. They are suitable for medium high temperature and medium high corrosive media and are the preferred material for high-end mechanical seals. At the same time, as the core material of grinding powder, grinding wheel, grinding head, ceramic cutting tool, it is used for precision grinding and cutting of metal, glass, ceramics, stone and other products, with high grinding accuracy and efficiency, suitable for precision machining scenarios, and is a commonly used choice for high-end grinding materials in the field of mechanical processing.

Due to its high temperature resistance, corrosion resistance, and good thermal insulation properties, alumina ceramics are widely used in high-temperature equipment and metallurgical fields, suitable for medium high temperature and medium low corrosion conditions. They are mainly used in the lining, furnace tube, burner, thermocouple protection tube, furnace lining plate, etc. of high-temperature kilns. They can work stably in a high-temperature environment of 1200-1500 ℃, resist high temperature erosion and oxidation, extend the service life of kilns, reduce maintenance costs, and are suitable for high-end high-temperature equipment such as ceramic sintering furnaces, metallurgical furnaces, glass melting furnaces, and resistance furnaces. Refractory castables, ramming materials, nozzle bricks, filters, etc. used for steelmaking and ironmaking can improve the wear resistance and erosion resistance of refractory materials, reduce the erosion of molten metal on the furnace body, ensure stable metallurgical production, and reduce the consumption of refractory materials.

In the fields of chemical engineering and environmental protection, 99% alumina ceramics are suitable for medium to low strength corrosion and medium to high temperature working conditions. With excellent corrosion resistance and cost-effectiveness, they have become the preferred material for mid to high end scenarios. They are mainly used for chemical reactor liners, pipelines, valves, pump bodies, filter elements, etc. They can withstand the erosion of medium to low concentration acid-base media such as sulfuric acid and hydrochloric acid, avoid equipment corrosion and leakage, and ensure the safety and stability of chemical production. Compared with 95% alumina ceramics, their corrosion resistance is better and they are suitable for more stringent chemical working conditions. Wear resistant and corrosion-resistant components used in environmental protection sewage treatment equipment, desulfurization and denitrification equipment, such as filtration membranes, desulfurization nozzles, sewage treatment impellers, etc., can adapt to media such as sewage and low to medium concentration flue gas, improve the service life and treatment efficiency of environmental protection equipment, and balance cost and performance.