Products Description
Convex Silver Contacts are solderable electrical contacts, with common structural forms including:
Convex disc-type silver contacts
Convex flat disc-type silver contacts
Customized flat/disc geometry
The core feature is: The contact surface employs a precisely controlled convex profile design, rather than a completely planar structure.
Engineering advantages of the convex structure:
Initially, point-to-surface or small-area surface contact is formed, making it easier to break through the surface oxide film.
As pressure increases, the contact area gradually expands, resulting in a more stable contact state.
Effectively reduces the risk of chatter, intermittent connections, and transient resistance fluctuations.
This structure is particularly suitable for systems with frequent switching, fretting wear, or minor assembly tolerances.
Manufacturing Advantages: Digital Control from Melting to Forming
Powder Metallurgy and Precision Pressing
Utilizing internationally advanced powder mixing technology, we ensure that oxides (such as tin oxide) are uniformly distributed in a three-dimensional manner within the silver matrix, eliminating performance fluctuations caused by material inhomogeneity for Flat Face Brazed Composite Rivet Contacts.
Cold Forging and Finishing Integration
We use multi-station cold forging equipment to integrally form convex shapes, followed by high-precision surface finishing (sizing), controlling curvature tolerances to the micron level for Radius Face Brazed Composite Rivet Contacts.
Controlled Atmosphere Welding Interface Treatment
For the bottom surface requiring welding, we employ special treatment processes under high vacuum or reducing atmospheres to ensure an oxidation-free welding surface and maximize solder wettability.
Application Advantages: Focusing on High Precision and High Reliability Applications
Automotive Relays
In the harsh environment of an automotive engine control compartment (high vibration, high temperature), the anti-vibration and self-cleaning function of Welding with Contacts ensures the flawless operation of car horns, lights, and starter relays.
Precision Instruments
In measuring instruments and microswitches on control panels, where signal current is weak, Silver Alloys and Components provide stable, low-noise signal transmission, preventing measurement errors caused by poor contact.
Safety Protection Devices
In circuit breakers and residual current devices (RCDs), when a fault occurs, the Composite Weld Contacts need to quickly and reliably connect the trip coil or signal circuit. The instantaneous contact reliability of convex contacts is crucial for the correct operation of the protection device.
Detailed Showcase: Meticulous Craftsmanship Reveals Quality
Perfect Spherical Contour:
Under a contour projector, our welding Silver contact exhibits a standard circular arc trajectory, without any polygonal or eccentric features. This geometric perfection is the foundation for ensuring uniform contact pressure distribution.
Mirror-Smooth Contact Top:
The top of the convex surface is meticulously finished, free of any machining marks or microcracks. This smooth surface reduces the coefficient of friction when the Electrical Contact Sheets slide across, minimizing mechanical wear.
Clear Interlayer Bonding Line:
Viewed from the side, the silver and copper layers are clearly defined with a smooth transition. Even at the highest point of the convexity (the point of maximum stress), the two metals remain tightly interlocked, demonstrating extremely high bonding strength.
contact us
If you are looking for silver contact solutions for relays, contactors, or new energy electrical systems that offer engineering-grade assurance in terms of structural design, material selection, and manufacturing consistency, please feel free to communicate your specific application needs with our technical team. We will provide more suitable engineering solutions based on your system operating conditions.
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