Solid Silver Contact Rivet
Products Description
Solid Silver Contact Rivet is made entirely of 99.99% high-purity silver, without any substrate composites or plating structures, belonging to the category of monolithic metal contacts. Unlike silver alloy contacts and silver-copper composite contacts, they boast high material purity, uniform crystal structure, and conductivity and thermal conductivity reaching the theoretical limits of silver. Specifically designed for low-current, high-precision, and high-reliability applications, they commonly feature an integrated rivet structure with an arc/flat head and a cylindrical shank, suitable for automated high-speed riveting assembly.
Working principle
Micro-arc buffering
The weak electric arc generated at the moment of disconnection is absorbed by the pure silver body. Silver's high thermal conductivity quickly disperses the arc heat, and its low melting point gently releases the arc energy, preventing contact erosion or welding for Silver electrical contacts (limited to low-current applications).
Flexible and stable fit
Pure silver is soft and undergoes slight deformation under pressure during closure, increasing the actual contact area and compensating for microscopic unevenness of the contact surface. Silver Rivet Contact maintains a tight fit even after long-term cycling, preventing contact resistance drift.
Oxidation-resistant and stable transmission
The naturally formed oxide film on the silver surface is thin and conductive, not hindering current transmission. Under normal conditions, there is no risk of corrosion or insulation damage for Alloy Silver Contacts, ensuring stable performance over long-term use.
Application Scenarios
Precision measuring instruments: Switching circuits of Solid Silver contacts for sale for high-precision equipment such as multimeters and oscilloscopes
Medical equipment: Silver electrical contacts are used for Signal transmission components for life monitoring equipment and diagnostic instruments
Laboratory equipment: Solid Silver contacts for electrical is used for Precision connections and signal switching for scientific research instruments
Aerospace: Avionics equipment with extreme requirements for weight and reliability
Product Feature
Low Coefficient of Thermal Expansion
The thermal expansion coefficient of pure silver (19.5×10⁻⁶/K) is highly compatible with that of the copper alloy base (17×10⁻⁶/K), reducing thermal stress caused by temperature changes and preventing cracking or loosening at the connection interface. During extreme temperature cycling from -50℃ to 200℃, the low thermal expansion characteristics maintain stable contact surface pressure, ensuring long-term reliability of electrical connections and reducing maintenance costs of Silver Rivet Contact.
Machinability
Supports customized riveting sizes and shapes (cylindrical/conical/stepped), adapting to the structural requirements of different equipment such as relays, switches, and industrial control modules. Precision cold heading and CNC machining processe for Electrical Silver Solid Contacts for Switches enable complex shape forming, maintaining the integrity of the silver grains and ensuring consistency in mechanical strength (≥800N axial tensile force) and conductivity.
Environmental Compliance
Compliant with RoHS standards, free of lead/cadmium/mercury and other hazardous substances, meeting the environmental regulations of the EU, North America, and other markets, reducing customer compliance risks and supply chain audit pressure. By employing recyclable silver materials and closed-loop production processes, we reduce production waste emissions, lower environmental impact, and help customers achieve their green manufacturing and sustainable development goals .
contact us
For specific specifications or customization options regarding Solid Silver Contact Rivet, our engineering team will provide material selection and performance recommendations based on your application scenario to ensure that the electrical connections meet your highest requirements.
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