Silver Bimetal Rivet Stamping Part
Products Description
This type of Silver Bimetal Rivet Stamping Part adopts a composite structure design of "copper substrate + silver contacts":
Substrate (copper stamping): Provides current transmission and structural support.
Contact (silver or silver alloy contacts): Responsible for interrupting current and ensuring electrical conductivity.
Connection method (precision riveting): Achieves a high-strength mechanical bond and low-resistance connection between the two materials.
This structure effectively resolves the contradiction between conductivity, wear resistance, and cost associated with a single material, achieving a balance between electrical performance and economy.
Design Advantages
Functional Gradient Design
From the surface of the silver disk to the bottom of the copper substrate, the material properties exhibit a gradient change: high surface conductivity and arc resistance → high-strength interface bonding → high thermal conductivity structural support in the substrate. This biomimetic design avoids concentrated failures caused by abrupt performance changes.
Geometric Customizability
The silver disk shape is optional: flat disc, spherical protrusion, central groove, multi-ring texture, etc., adaptable to different contact forms (point contact, line contact, surface contact). The copper substrate can be designed as: solid rivets, hollow sleeves, flanged flanges, or integrated spring sheet structures to meet diverse assembly requirements.
Space Efficiency Optimization
The riveted structure is compact in the Z-axis height, and the silver disk thickness can be as thin as 0.3mm, suitable for the limited space of miniature relays and high-density switches. Compared to screw fastening or welding solutions, In-Die Riveting in Metal Stamping eliminates additional fastener space or solder filling area.
Maintainability Provision
In applications requiring contact replacement, the Electrical contact assembly structure can be removed by reverse riveting with special tools; the copper substrate is reusable, and only the silver disk needs to be replaced. This maintainable design reduces total lifecycle costs and aligns with sustainable manufacturing principles.
In-depth Technical Analysis: Why Choose Our Riveting Solution?
A. Deep Application of Materials Science: We not only provide products, but also material matching solutions.
Contact Layer (Silver and Silver Alloys): Utilizing multi-element alloys such as AgNi (silver nickel), AgSnO2 (silver tin oxide), or AgCdO (silver cadmium oxide). AgSnO2 performs exceptionally well in the environmentally conscious European market, exhibiting excellent resistance to welding and arc burn-off.
Substrate Layer (T2 Copper/Oxygen-Free Copper): Selecting high-quality copper with a conductivity of ≥98% IACS, ensuring that temperature rise under long-term overload current is controlled within industry benchmark ranges.
B. Advantages of Bimetallic Composite Technology: Unlike solid silver contacts, our bimetallic riveting design, while ensuring the performance of the working face, significantly reduces the cost of using precious metals through optimized composite ratios. Simultaneously, the toughness of the copper shank enhances the tightness after riveting with Copper Rivet Silver Electrical Contacts.
Application Advantages
Relay Stationary Terminal
As the fixed terminal of the relay contact system, the Precision Riveted Silver Contact Switching Terminal works with the moving contact to complete circuit switching. The arc resistance of the riveted silver disc and the low resistance of the copper substrate ensure a long electrical life (typically 10⁵-10⁷ operations) and low coil power consumption.
Switching Equipment
Used in wall switches, microswitches, limit switches, etc. The silver-copper assembly is directly soldered to the PCB or inserted into a plastic base. The cost advantage of the stamped riveted components makes Copper Contact Element competitive in the consumer-grade switch market while meeting the safety certification requirements of home appliances.
Industrial Contactors
Main or auxiliary contacts of high-current contactors (tens to hundreds of amperes) that withstand frequent motor starting current surges. The combination of anti-welding materials, such as silver tin oxide, and the high heat capacity of copper prevents contact welding failure.
Automotive Electrical Systems
Automotive relays, flashers, power switches, etc., require components to withstand the high temperatures, vibrations, and salt spray environment of the engine compartment. Optional nickel-plated or gold-plated versions meet automotive electronics reliability standards (such as ISO 16750).
contact us
If your Silver Electrical Riveted Components have higher requirements for contact reliability, lifespan stability, and structural compatibility, we can provide customized engineering solutions and sample verification support based on actual working conditions. Please visit our inquiry page for further discussion.
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