Products Description
Bimetal Electric Rivet Contact is an electrical contact element made by combining a silver alloy contact layer with a copper substrate through a composite process. It is widely used in relays, contactors, switches, circuit breakers, and various low-voltage electrical products.
Its core function is to conduct electricity, carry current, interrupt circuits, and resist arc erosion during circuit connection and disconnection, while also ensuring mechanical connection strength and long-term operational reliability.
Differentiated Manufacturing Advantages
High-Precision Cold Forging 3D Composite Forming
Equipped with an advanced multi-station fully automated composite cold forging unit, silver and copper wires are precisely cut, arranged, and extruded online in a single process, eliminating any waste and ensuring high consistency in the dimensional chain for large-volume deliveries for Bimetal Ag/Cu Silver Contact Riveting.
Interfacial Atomic-Level Diffusion Excitation Technology
Applying ultra-high unit pressure within the forming cavity instantly disrupts the microscopic oxide film on the metal surface of Switch Bimetal Silver Contact, activating the interfacial diffusion lattice of silver and copper at room temperature or slightly elevated temperatures. The solid solution bonding strength exceeds the shear limit of the base material itself.
Detailed Display
Silver-Copper Interface Bonding Line
Under a 50x microscope, the interface between the silver layer and the copper substrate exhibits a uniform, wavy transition, free of inclusions and pores-a hallmark of excellent metallurgical bonding for Bimetal Silver Rivet Contacts for Electric Power.
Silver Layer Thickness Uniformity
The silver layer thickness at the contact head is uniformly distributed circumferentially, with the thinnest point not less than 85% of the design value, ensuring complete silver layer coverage throughout the Silver Bimetal Rivet Contacts's lifespan.
Convexed Head
The contact head edge is chamfered with a radius of R0.2-0.5mm to reduce edge stress concentration and prevent cracking during riveting of Electrical Contact Point for Switches.
Frequently Asked Questions
1. What silver alloy material options are available for Button Bimetal Rivet Electrical Contact?
We offer materials such as AgNi, AgCdO, AgSnO2, and AgZnO, which can be selected according to the current rating and application environment.
2. What is the difference between Switch Bimetal Silver Contact and solid silver contacts?
Solid silver contacts are made entirely of silver-based materials, while bimetallic contacts only use silver alloy in the working area, with structural support provided by a copper substrate, thus achieving higher material utilization.
3. How is the bonding between the silver layer and the copper substrate guaranteed?
We use a high-temperature, high-pressure pressing process, with a silver layer thickness of 0.1mm or more, ensuring the bonding strength meets application requirements for Bimetal Ag/Cu Silver Contact Riveting.
contact us
If you are looking for Bimetal Electric Rivet Contact solutions for relays, contactors, circuit breakers, or new energy electrical systems, please contact us. Our engineering team can provide customized support and sample evaluation services based on your current rating, life requirements, and assembly methods.
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