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China, Chinese Industrial Alumina Metallized Ceramic Sealing Ring for Electrical Components1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Industrial Ceramic ProductsCeramic InsulatorCeramic Sealing RingMetallized Ceramic Ring
SHENZHEN JINGHUI INDUSTRY LIMITED
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Product Description Industrial Alumina Metallized Ceramic Sealing Ring for Electrical Components Product IntroductionIntroduction to Metallization TechnologyCeramic surface metallization is a surface treatment process that can effectively improve the properties of ceramic materials. It aims to form a uniform and dense metal film on the surface of ceramic parts to improve its surface properties, such as electrical conductivity, corrosion resistance, and giving it connectivity with metals. This technology is widely used in power electronics and new energy vehicles. Product ParametersThe most common ceramic material used in metallization processes is alumina ceramic. Below is the data sheet of our alumina ceramic materials. CategoryPropertyUnit99.8%Al2O399.5%Al2O399%Al2O395%Al2O394.4%Al2O3MechanicalDensityg/cm3≥3.95≥3.90≥3.85≥3.65≥3.60Water absorption%00000Vickers hardnessHV17001700170015001500Flexural strengthMpa≥ 390≥ 379≥ 338≥ 320≥ 312Compressive strengthMpa≥ 2650≥ 2240≥ 2240≥ 2000≥ 2000Fracture toughnessMpam1/24-54-54-53-43-4ThermalMax. Service temperature(non-loading)oC17501675160015001500CTE (Coefficient of thermal expansion)20-800oC1×10-6/oC6.5-8.26.5-8.06.2-8.05.0-8.05.0-8.0Thermal shockT (oC)≥ 200≥ 200≥ 200≥ 220≥ 220Thermal conductivity25oCW/(m·k)3130292422.4Specific heat1×103J/(kg·k)0.780.780.780.780.78ElectricalVolume resistivity25oCohm·cm> 1×1014> 1×1014> 1×1014> 1×1014> 1×1014300oC1×10121×10128×10111012-10131012-1013500oC2×10125×10102×1091×1091×109Dielectric strengthKV/mm2019181818Dielectric constant (1Mhz)(E)9.89.79.59.59.5 Product ApplicationsApplication Examples1. Ceramic feedthroughsCeramic feedthrough is a sealing device that can pass through the wall of the vacuum chamber and transmit various electric power and electric signals from the atmosphere to the inside of the vacuum chamber. It is widely used in electric vacuum devices.2. Vacuum interruptersThe vacuum interrupter is a core component of a new type of high-performance medium and high voltage power switch. Through the insulation of the vacuum in the tube, the medium and high voltage circuit can quickly extinguish the arc and suppress the current after the power is cut off, thereby achieving the function of safely turning on/off the circuit and controlling the power grid.3. Ceramic relaysCeramic relay is a relay sealed with ceramic vacuum. Its contact points are sealed and isolated from the outside air to obtain high voltage resistance. It is often used in the field of new energy vehicles and high-frequency circuits. Company ProfileJinghui Ceramic is a professional manufacturer of metallized ceramics and has a complete and scientific quality management system. We strive for excellence in product quality, and high quality is our original intention.1. Every detail is in placeOur products are well-detailed, have high surface finish and stable performance.2. Quality controlUsing testing equipment and manual screening to ensure that products reach customers without quality problems.3. Technical supportWe can customize as per customer requirements and can provide customers with reference solutions.4. Fast shippingThe use of mechanized automatic production effectively improves production efficiency while saving labor costs.
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