Metalized Ceramics For Electrical Components
Products Description
In HVDC (High Voltage Direct Current) systems such as new energy vehicles, photovoltaic energy storage, high-voltage charging piles, and rail transit, the high-voltage DC contactor is a core component for power transmission and control, and its reliability directly determines the safe and stable operation of the entire system. Metalized Ceramics for Electrical Components, as a key structural component within the contactor for "insulation and conductive connection," must simultaneously meet four core requirements: "high-voltage insulation, high-temperature resistance, mechanical strength, and interface sealing."
Key Features
High Electrical Insulation Performance
Utilizing high-quality metallized ceramic components materials, the insulation strength is high, effectively withstanding high-voltage DC impacts and ensuring safe operation of the HVDC system under extreme conditions.
01
Stable Conductive Interface
The precision metallization layer is tightly bonded to the Metallized Ceramics substrate through a high-temperature sintering process, achieving low-resistance, highly reliable current transmission, effectively reducing energy consumption and heat loss.
02
High Temperature and Thermal Shock Resistance
The ceramic metallization substrate itself possesses excellent high-temperature resistance, operating stably in environments with continuous operating temperatures exceeding 300°C. Simultaneously, the metallization layer exhibits excellent thermal expansion resistance, preventing cracking or detachment.
03
High Mechanical Strength
Manufactured using carefully selected Ceramic to Metal raw materials and a high-precision sintering process, it possesses high hardness and compressive strength, maintaining structural integrity even under vibration or impact conditions.
04
Long-Term Stability and Corrosion Resistance
The metallization layer uses an antioxidant alloy material, providing long-term resistance to air and humidity corrosion, ensuring extended contactor life and reduced maintenance frequency.
05
Design Advantages: Deeply Adapted to HVDC Contactor Application Scenarios
| Integrated Structural Design | The Precision Metallized Alumina Ceramic Components layer is integrated with the contactor housing and contact bracket, reducing assembly steps, minimising cumulative errors, and improving overall contactor reliability. It integrates insulation, conductivity, sealing, and support functions, simplifying the product structure. |
| Thermal Expansion Matching Design | Based on finite element simulation analysis, the thickness and composition distribution of the metallization layer are optimised to ensure a consistent thermal expansion coefficient for the ceramic-metal composite structure. This prevents stress concentration over a wide temperature range, avoiding cracking failure. |
| High-Voltage Insulation Optimisation Design | The High Purity Alumina Precision Advanced Ceramic Metallization Parts substrate surface is frosted to increase creepage distance; insulating grooves are designed in key areas to improve the breakdown voltage threshold and meet the safety margin requirements of high-voltage systems. |
| Standardised Installation Interface | Product dimensions and mounting hole positions conform to international and domestic standards such as IEC, UL, and GB. It can directly replace similar imported products without modifying the contactor housing design, reducing customer replacement costs. |
| Customised Adaptation Design | We support customisation of High Purity Alumina Precision Advanced Ceramic Metallization Parts substrate type, metallization layer layout, dimensions, and installation method based on customer contactor structure, voltage level, and current requirements. Our engineering team will provide a customised solution within 48 hours. |
Application Advantages
HVDC High Voltage Direct Current Contactors
As the core arc-extinguishing chamber component or insulator, they directly determine the contactor's breaking capacity, voltage rating, and electrical life.
Vacuum Switching Tubes
Alumina ceramic parts precision machining, serving as the housing and electrode leads, they are crucial for ensuring high vacuum and high insulation strength.
Power Semiconductor Modules (IGBT/SiC)
Serving as the Precision Metalized Ceramics substrate (DBC/AMB), they provide electrical insulation and thermal management for the chips, forming the "foundation" of power electronic devices.
High Voltage Capacitors and Resistors
Serving as their electrodes and leads, they ensure long-term stable operation under high-voltage environments.
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