Electrical Tri-Metal Rivet
Electrical Tri-Metal Rivet

Electrical Tri-Metal Rivet

In high-end electrical switching devices, the material design of moving contacts often faces a dilemma between "performance" and "cost." While integral silver alloys are reliable, they impose a heavy BOM burden; single-sided composite structures are difficult to withstand bidirectional arc erosion. Electrical Tri-Metal Rivet was created to solve this contradiction—through an innovative "silver-copper-silver" three-layer metallurgical composite architecture, it retains the highly conductive and arc-resistant silver alloy functional layers at both ends, while using highly thermally conductive copper as the core to bear current and mechanical stress.
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Products Description

 

Electrical Tri-Metal Rivet

The Electrical Tri-Metal Rivet can be understood as a highly efficient alternative from the perspective of "materials engineering and cost optimization." It achieves a fine balance between performance and cost by retaining silver alloy material in critical contact areas and introducing a copper interlayer in non-critical conductive paths. This structure not only reduces the amount of precious metals used but also improves the heat dissipation capability of the contacts during operation through the high thermal conductivity of the copper layer, thereby mitigating the impact of localized temperature rise on the contact interface.

 

Application Areas and Competitive Advantages

Application Areas

 

Industrial Control Relays: Provide stable Three Compound Rivet operation in applications requiring precise control of circuit switching.

Switching Power Supplies (SMPS): In high-frequency power supplies, Three Compound Rivet effectively reduce contact resistance and improve energy efficiency.

Energy Storage Systems: Used in the protection circuits of inverters and battery packs to withstand high current surges.

Advantages

 

Compared to traditional "integral silver contacts," Three Compound Contacts solves the high cost problem without sacrificing performance; compared to ordinary "copper contacts," it solves the problem of insufficient conductivity.

Electrical Tri-Metal Rivet and Their Applications

 

 

Product Advantages

 

Exceptional Cost-Effectiveness

Compared to solid silver contacts of the same size, the Trimetal Silver Contacts, while ensuring that the key contact surfaces at both ends are made of high-performance silver alloy, replaces the silver material in the central part with cost-effective copper, achieving cost savings of 30% to 50%, bringing customers a direct and significant procurement cost advantage.

01

Superior Comprehensive Electrical Performance

The silver alloy working surface provides excellent contact resistance, resistance to arc erosion, and resistance to welding; the central high-conductivity copper core (conductivity ≥100% IACS) creates an internal current channel with extremely low resistance and serves as an efficient heat conduction path, rapidly dissipating the heat from the Three Compound Contacts, achieving superior heat dissipation compared to solid silver contacts of the same thickness.

02

Mechanical and Thermal Stability from the Symmetrical Structure

The symmetrical design of the double silver layers at the head and feet ensures a more uniform stress distribution when the rivet is subjected to dynamic impacts, mechanical stress, and temperature cycling, effectively resisting warping deformation. The matching design of the copper core's coefficient of thermal expansion reduces interfacial thermal stress, significantly improving long-term dimensional stability and connection reliability under frequent switching conditions.

03

Reliability in solving the "leakage" problem

Through proprietary interface treatment and composite processes, the bonding strength between the silver layer and the copper layer is ensured to exceed the strength of the silver or copper base material itself, fundamentally eliminating the risk of "leakage" of the silver layer during riveting, long-term vibration or thermal cycling, and ensuring the functional integrity of the Three Compound Rivet throughout its entire life cycle.

04

 

Electrical Tri-Metal Rivet can save costs 30-65 than Solid Silver Contacts

 

 

Technical Features

 

Symmetrical Layer Structure The silver layer thickness of 
Tri Metal Contacts of the head and foot can be controlled separately to adapt to the usage requirements of different sides.
Metallurgical Bonding Interface No oxide inclusions between the silver and copper layers, resulting in high bonding strength and ensuring that the silver layer does not peel off during cold forging for Three Compound Rivet.
Precision Dimensional Control Key dimensional tolerances such as Three Compound Contacts head diameter, foot diameter, and total length are controlled within ±0.05mm.
Controllable Silver Layer Thickness The silver layer thickness of the head can be customized within the range of 0.05mm to 0.3mm, and the silver layer thickness of the foot can be adjusted according to welding or contact requirements.

 

We are professional in manufacturing Electrical Tri-Metal Rivet

 

 

 

contact us

 

For support in selecting or customizing an Electrical Tri-Metal Rivet, please contact us. We will provide you with professional and reliable solutions and a rapid response service.

 

Mr Terry from Xiamen Apollo

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