Al2O3 Alumina Ceramic Vacuum Relay Casing
Products Description
This Al2O3 Alumina Ceramic Vacuum Relay Casing is a core insulation and sealing component for high-voltage DC contactors. The main body is made of 95% high-alumina ceramic substrate, combined with a T2Y2 high-purity copper stationary contact and an alloy steel sealing gasket, and is integrally formed through vacuum brazing. It is specifically developed for high-voltage vacuum relays in new energy vehicles and energy storage HVDC circuits. The component undertakes four core functions: electrical insulation, vacuum sealing, current carrying and heat conduction, and structural pressure bearing, fully matching the long-term continuous operating conditions of new energy power electronic equipment.
Product Advantages
Long-term Reliability
Metallized Alumina Relay Ceramics features low dielectric loss, resistance to arc erosion, and aging resistance, making it suitable for long-term operation of high-voltage DC systems.
Technology Compatibility
As an Al2O3 Alumina Ceramic Housing for High Voltage DC Contactor, it can be modularly integrated with vacuum arc-extinguishing structures, stationary contact systems, and metal housings.
Manufacturing Consistency
Batch stability is controlled through key processes such as metallization, brazing, and hermeticity testing, reducing the verification risks for system engineers during mass production.
Supply Risk Control
It supports integrated supply of Alumina Metallized Ceramic for Electrical Relay, from ceramic housing, copper components, stamped parts to welded assemblies, reducing the risks associated with multi-supplier collaboration.
Product Application Advantages
New Energy Vehicles
High-Precision Alumina Ceramic Components meet the wide temperature adaptability and vibration resistance requirements of on-board operating conditions, improving the safety and lifespan of high-voltage systems.
Energy Storage Power Stations
EV Relay Metallized High Alumina Ceramic is suitable for long-term, frequent charge-discharge operations, offering stable insulation performance and reducing system maintenance costs.
Rail Transit
HVDC Contactor High Purity Ceramics Shell For Relay withstands extreme outdoor temperature variations, providing stable sealing performance and ensuring long-term reliable operation of the power supply system.
Frequently Asked Questions
What metallization process is used in the EV HVDC Relay Ceramic Housing?
A molybdenum-manganese metallization process is used. The molybdenum-manganese metallization paste is sintered at 1530℃ to form a metal film that is firmly bonded to the substrate on the ceramic surface, and then a nickel layer is electroplated to ensure solderability. The bonding strength between the metallization layer and the ceramic is >350 MPa.
Can the brazed components undergo secondary processing?
The ceramic parts can be precision ground or laser cut, and the metal terminals can be turned, milled, or drilled, but excessive mechanical stress on the brazed joints should be avoided. It is recommended to determine the final dimensions of the Metallized Alumina Ceramics wear Resistant For EV Relay during the design phase.
Can all metal conductive parts of the contactor be supplied as a complete package? Is it feasible to purchase only the ceramic housing?
Both purchasing options are possible. Customers can purchase the Metallized Alumina Ceramics Relay Parts separately, or they can purchase the entire integrated brazed assembly, including the ceramic housing, copper contacts, and sealing gaskets. The factory can supply all of these components.
contact us
For a complete material testing report, sample samples, and bulk purchase quotation for this Al2O3 Alumina Ceramic Vacuum Relay Casing, please feel free to contact our engineering and sales team to discuss suitable solutions.
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