Trimetal Silver Alloy Copper Contact Rivet
Products Description
The Trimetal Silver Alloy Copper Contact Rivet employs a three-layer composite structure consisting of silver, an alloy reinforcement layer, and a copper base. This structure ensures low contact resistance and a stable physical structure even under prolonged and frequent switching, arcing, and high-load operating conditions.
This product is widely used in:
High and low voltage electrical contact systems
New energy vehicles and power controllers
High-performance relays
Industrial control equipment and intelligent control modules
Electricity meters, home appliance switches, and thermostats
Special electrical connection systems
For equipment manufacturers who prioritize lifespan, reliability, and safety, this is a more balanced and valuable comprehensive solution than traditional silver rivets.
Technical Features: Solving the Pain Points of Contact Failure in High-Voltage Systems
Dynamic Oxidation Inhibition Mechanism
When current flows, tin preferentially oxidises to form a protective layer, keeping the contact resistance at a stable level (<1mΩ), avoiding the problem of resistance surges in traditional tri-metal contact rivets after energisation.
High-Frequency Adaptability Optimisation
The low permeability of the ternary alloy reduces high-frequency electromagnetic interference (EMI), making it particularly suitable for high-frequency applications such as 5G base stations and power electronic converters.
Micro-Wear Self-Repair
In mechanical vibration environments, the oxidation-reduction cycle of tin enables automatic repair of surface micro-damage, with three-metal rivets for electrical contacts, resistance fluctuation rate of less than 0.5%.
Synergistic Thermal Management
The high thermal conductivity of silver (429W/m·K) combined with the structural support of copper ensures uniform heat dissipation and avoids localised overheating.
Core Functions: Meeting Scenario-Specific Electrical Contact Needs
Dynamic Contact Stability
Adapts to vibration and temperature changes during equipment operation, with minimal tri-metal electrical contacts resistance fluctuations, ensuring continuous and reliable current transmission and preventing equipment failures due to poor contact.
01
High Current Surge Resistance
The anti-welding properties of the ternary alloy and its metallurgical composite structure can withstand instantaneous high current surges (up to 2000A), suitable for scenarios such as new energy vehicles and high-power contactors.
02
High-Frequency Switching and Wear Resistance
The arc-resistant and wear-resistant alloy formula and contact layer design support over a million high-frequency switching cycles, reducing equipment maintenance frequency and lowering operating costs.
03
Extreme Environment Adaptability
Wide temperature range (-60℃~180℃) and corrosion resistance (salt spray/industrial gases) meet the needs of extreme scenarios such as aerospace, rail transportation, and chemical industries.
04
Environmentally Friendly and Safe
The lead-free and cadmium-free alloy system complies with the latest international environmental standards, eliminating the release of harmful substances and ensuring the safety of equipment and personnel.
05
Detailed Display
Visual
The three-layer metal interface is clear yet smoothly transitions without any gaps or inclusions. The working surface is mirror-like, free of pits and scratches. The Double Silver Contact Rivets for Switches heads and shanks are precisely sized and highly concentric.
Tactile
The working surface has a hard yet smooth texture, while the copper shank has a good metallic feel. Overall, it gives an impression of robustness and precision.
Microscopic
Under a scanning electron microscope (SEM), the uniformly dispersed oxide particles in the silver alloy and the interpenetration of grains at the composite interface can be seen, which is the microscopic source of Double Silver Contact Rivets for Switches' superior performance.
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