What are Bimetallic Rivets?
Engineered for high‑reliability low‑voltage switching devices, automotive relays, and smart power distribution systems, our Bimetallic Rivets combine a wear‑resistant silver alloy crown with a high‑conductivity oxygen‑free copper base through advanced solid‑state cold heading technology. Leveraging robust high‑volume manufacturing lines and rigorous metallurgical bonding controls, our factory delivers consistent batch quality with stable global supply capacities to meet stringent industrial demands.
Material Selection & Metallurgical Specifications of Contactor Contacts
Silver Alloy Crown Layer Selection
Selection encompasses AgSnO2, AgNi10, and AgCuO grades, matched precisely to specific inductive and resistive load profiles required by end‑use Electrical Silver Contacts and other electrical equipment.
Copper Base Substrate Properties
C1100 electrolytic copper substrates provide high mechanical strength and thermal dissipation capabilities, anchoring the precious metal crown securely for Silver Contacts in Breakers application scenarios.
Bonding Interface Integrity Standards
Solid‑phase diffusion bonding ensures zero separation risk between layers, verified through rigorous thermal shock and mechanical destructive testing protocols for high‑performance Silver Cadmium Contacts.
Plating and Surface Treatment Options
Optional flash silver plating or anti‑oxidation passivation layers protect exposed copper base surfaces against atmospheric corrosion prior to final assembly.
Precision Manufacturing & Cold Heading Processes of Contactor Electrical Silver Contacts
Multi‑Station Cold Heading Execution
High‑speed automated cold heading presses deform raw wire stock into complex Contact Point geometries with exceptional dimensional repeatability and structural density.
Solid‑State Diffusion Bonding Control
Precise pressure and temperature synchronization during the cladding stage achieves atomic‑level metallurgical interlock between silver and copper matrices.
Automated Dimension Sorting Systems
In‑line laser micrometer screening inspects head diameter, height, and shank straightness, filtering out any out‑of‑tolerance Silver Point Contacts automatically.
Cleanroom Packaging Protocols
Clean automated packaging processes seal finished contact rivets in vacuum barrier bags with desiccant to prevent oxidation during Silver Contact Rivet international transit.
Quality Control & Mechanical Reliability Standards of Bimetal Silver Contacts
Destructive Shear Strength Testing
Regular laboratory shear testing ensures bonding force exceeds 180 MPa, guaranteeing the Bimetal Silver Contacts will not detach under severe mechanical shock.
Microscopic Metallographic Inspection
Cross‑sectional metallographic analysis verifies uniform layer thickness distribution and total absence of micro‑voids at the bonding interface of Composite Contacts.
Hardness and Density Verification
Vickers hardness testing (HV) monitors material work‑hardening states, ensuring optimal balance between spring contact conformity and wear durability.
Typical Application Scenarios of Contact Point
| Relay Moving Contacts | Bimetal Electrical Silver Contact points serve relay moving‑contact assemblies. The silver surface acts as a switching interface, and the copper part offers mechanical & electrical support. |
| Smart Meter Latching Relays | Bimetal Rivet for Relays demand consistent geometry and stable electrical performance under frequent switching. Material and shape shall match the meter-rated current and switching duty. |
| Low‑Voltage Switches | In low‑voltage switch parts, bimetal construction delivers a silver working surface while cutting silver material consumption of the whole Contact Point. |
| New Energy Control Systems | Suitable for new‑energy control assemblies when relay/contactor switching stays within given electrical and temperature limits. Real‑world voltage, current, load and electrical‑life testing are required for final validation. |
contact us
Partner with an established direct source factory to optimize your low‑voltage electrical assembly costs without compromising performance. Contact our engineering team today to submit your specifications, request complimentary material samples of Bimetallic Rivets, or obtain a competitive bulk quotation tailored to your global supply chain requirements.
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