99% alumina ceramic

99% alumina ceramic spare plate is a highly durable, wear-resistant component made from aluminum oxide (Al₂O₃) that is 99% pure. It is used as a critical wear part within industrial valves. ​​99% Alumina:​​ This indicates a very high purity level. The remaining 1-2% consists of other oxide additives (like SiO₂, MgO, CaO) that aid in the sintering process during manufacturing. This high purity results in superior mechanical properties compared to lower-grade alumina (e.g., 92% or 96%). ​​Spare Plate:​​ This part is specifically designed as a replacement component for valves that handle highly abrasive or corrosive media. It often serves as the seat or a guiding component that bears the brunt of the wear.

Application fields Energy Field: alumina ceramic ring is used in the coolant pipes of nuclear power plants and the high - temperature collector pipes of solar thermal power generation, which can resist high - temperature radiation and prevent the leakage of radioactive substances or high - temperature media. Electronic Industry: In the chip manufacturing process, it is used to ensure the stable operation of semiconductor equipment with its excellent insulation and sealing properties, and provide a dust - free and vacuum environment. Aerospace: alumina ceramic ring is applied to the fuel delivery system of aircraft. With its micron - level sealing accuracy, it can prevent the leakage of fuel and ensure flight safety. Chemical Industry: alumina ceramic ring is used in the reaction kettles and pipelines of chemical plants to prevent the leakage of toxic and harmful media and ensure the safety of production processes.

Longer Service Life: Wear resistance and corrosion resistance are 5-10 times higher than metal pistons—reduces maintenance costs and downtime (e.g., ceramic engine pistons last 2-3x longer than aluminum alloy versions). Higher Operating Temperatures: Withstands 1000°C+ temperatures (vs. 300-500°C for metal)—enables machinery to operate at higher efficiencies (e.g., gas turbines with ceramic pistons have 10-15% higher thermal efficiency). Improved Energy Efficiency: Low density (silicon nitride) reduces reciprocating inertia, and low friction reduces energy loss—automotive engines with ceramic pistons can achieve 5-10% better fuel economy. Corrosion Resistance: Inert to most acids, alkalis, and seawater—eliminates rust and material degradation in harsh chemical/marine environments. Reduced Lubrication Needs: High wear resistance allows dry or minimal lubrication—lowers maintenance costs and avoids lubricant contamination in food/chemical applications.

Ceramic rotor shafts and rings are high-performance precision components widely used in rotating machinery (e.g., motors, pumps, bearings, turbines). Their core material is typically advanced technical ceramics—selected based on application requirements for wear resistance, corrosion resistance, thermal stability, or electrical insulation

99% alumina ceramic valve plate is a critical functional component in fluid control valves, where the core plate structure is fabricated from 99% high-purity alumina ceramic (Al₂O₃ content ≥99%, with trace impurities such as SiO₂, MgO, and CaO accounting for the remaining 1%).

99% alumina ceramic versions leverage the material’s intrinsic advantages: ultra-high hardness, exceptional wear resistance, strong corrosion resistance, and high-temperature stability. These properties make the valve ideal for controlling abrasive, corrosive, or high-temperature fluids (e.g., slurry, acid/alkali solutions, high-temperature gases) where metal valves are prone to wear, corrosion, or deformation—significantly extending service life and ensuring consistent flow control accuracy.

High purity and density, ensuring stable and reliable performance. Excellent wear resistance, high temperature resistance, and electrical insulation. Good chemical stability, suitable for harsh working environments. High dimensional accuracy and surface finish after precision machining.