alumina ceramic plate

Alumina Ceramic Valve Plate (also known as alumina ceramic valve disc) is a high-performance fluid control component manufactured from high-purity aluminum oxide (Al₂O₃) ceramic material. It serves as a critical sealing and flow-regulating part in various industrial valves, replacing traditional metal, plastic, or rubber valve plates.   Material & Specifications   • Raw Material: High-purity alumina ceramic (typically 95%–99.9% Al₂O₃) • Density: 3.75–3.95 g/cm³ • Hardness: Rockwell hardness HRC 90 (second only to diamond) • Flexural Strength: 300–630 MPa • Compressive Strength: 2000–4000 MPa • Surface Roughness: Ra ≤ 0.1–0.8 μm (mirror-polished) • Temperature Resistance: Operating range -200°C to +1600°C; melting point ~2050°C • Standard Sizes: Customizable outer diameter (up to 300 mm) and thickness  

Shenxing Ceramic Shim Core Sheet Plate for Lobed Wheel Pump Product Overview Shenxing Ceramic Shim Core Sheet Plate is a high-performance structural ceramic component specially designed for lobed wheel (rotary lobe) pumps, manufactured by Yixing Shenxing Shenxing Technology Co., Ltd. (Shenxing Ceramics). It serves as a critical wear-resistant, gap-adjusting, and sealing core part inside lobe pumps, addressing the challenges of abrasion, corrosion, and high-temperature operation in fluid handling.    

The heat resistance corrosion resistant 99% alumina ceramic plate is a high - performance ceramic material plate. Here are its main characteristics: • High - temperature resistance: It can work stably at high temperatures. Its melting point is as high as 2075℃, and it can be used for a long time below 1700℃ . The low thermal expansion coefficient ensures that it will not deform or soften easily at high temperatures . • Corrosion resistance: It has extremely strong chemical stability and is highly resistant to acid, alkali, and organic solvents . For example, it can be immersed in 98% concentrated sulfuric acid for half a year without being corroded . • High hardness and wear resistance: The Mohs hardness of 99% alumina ceramic can reach level 9 or higher . Its wear - resistance is 10 to 20 times that of stainless steel, which can effectively resist mechanical wear and scratching . • Good electrical insulation: It has a high volume resistivity and dielectric strength, with a volume resistivity of ≥10¹⁴Ω・cm and a breakdown strength of ≥25kV/mm . It can be used as an ideal insulating material in electronic equipment. These properties make 99% alumina ceramic plates widely used in semiconductor manufacturing, electronic industry, chemical industry, aerospace and other fields . The heat - resistance corrosion - resistant 99% alumina ceramic plate is a high - performance ceramic product with the following notable features: • High - temperature resistance: It has a high melting point of approximately 2050℃ and can be used for a long time at temperatures below 1700℃ . Its low thermal expansion coefficient ensures that it maintains good dimensional stability at high temperatures without deforming or softening easily . • Corrosion resistance: With strong chemical stability, it is highly resistant to acids, alkalis, and organic solvents . It hardly reacts with common strong acids such as hydrochloric acid, sulfuric acid, and nitric acid, as well as strong bases like sodium hydroxide . Only hydrofluoric acid and concentrated alkalis at high temperatures can corrode it . • High hardness and wear resistance: The Mohs hardness of 99% alumina ceramic can reach level 9 or higher . Its surface is dense, and its wear - resistance is much better than that of low - purity alumina ceramics . • Good electrical insulation: It has a high volume resistivity of ≥10¹⁴Ω・cm and a breakdown strength of ≥25kV/mm . It can maintain stable insulation performance in high - voltage and high - frequency environments .

Alumina ceramic sealing ring is a high-performance sealing component made from high-purity alumina (Al₂O₃) as the core material, processed through molding, high-temperature sintering, and precision machining. It integrates sealing, wear resistance, and corrosion resistance, suitable for harsh working environments requiring reliable sealing.