Tri-metal Rivet Contacts
Products Description
Tri-metal Rivet Contacts are a type of functional electrical contact manufactured from composite metal blanks using processes such as cold heading, stamping, and welding. Their core structure consists of:
Top material: Silver alloy (Ag Alloy) Responsible for arc bearing, current conduction, and low contact resistance.
Middle core material: High-purity copper (C1100/C1020) Responsible for enhancing heat dissipation, optimizing material costs, and improving overall mechanical strength.
Bottom material: Silver alloy or silver-based solder layer Ensures welding stability and assembly reliability.
This structure combines the excellent electrical properties of silver alloys with the superior thermal conductivity and cost advantages of copper, making it the preferred contact solution in the current electrical industry that balances performance and economy.
Core Advantages: Why Choose Triple Composite Rivet Contacts?
| Exceptional Heat Dissipation, Significantly Reduced Temperature Rise | The high thermal conductivity of the copper core (approximately 400 W/m·K) is far superior to that of silver alloys. It acts like a built-in "heat sink," efficiently dissipating heat from the contact's operating point, resulting in lower operating temperatures under the same load, delaying insulation aging, and improving overall stability. |
| Stable Low Resistance Throughout the Path, Ensuring Long-Term Reliability | The double-ended silver alloy design eliminates the "snowball effect" of contact resistance caused by oxidation of the leads in traditional contacts. From initial installation to the end of the product's lifecycle, the contact resistance remains consistently low, avoiding the risks of micro-discharge, localized overheating, or even equipment burnout caused by poor contact. |
| Superior Arc and Weld Resistance | The head is made of a carefully selected silver alloy material, processed with a special formula to maintain its shape stability under high arc temperatures, effectively resisting arc erosion and preventing the moving and stationary contacts from sticking together (welding) under high voltage and high current, ensuring crisp and clean switching action. |
| Optimized Material Costs for a Balance Between Performance and Economy | While ensuring the use of silver alloy for key performance aspects (contact and connection surfaces), most of the silver material is replaced with lower-cost copper. This allows the contacts to achieve near-pure silver contact performance while effectively controlling material costs, providing you with a highly competitive price-performance ratio. |
Innovative Design and Functional Advantages
Dual Enhancement of Anti-Welding and Wear Resistance
The silver alloy in the contact head undergoes a special formulation and treatment, optimizing its hardness and resistance to arc erosion. This makes the contacts more robust against arcs generated by frequent switching, reducing material transfer and wear (extending lifespan) and lowering the risk of contact adhesion (welding) caused by high arc temperatures. This is particularly suitable for switching scenarios with inductive loads (such as motors and relays).
Optimized Thermal Stress Distribution
Due to the difference in thermal expansion coefficients between copper and silver alloy, the three-layer structure is precisely calculated during design to offset and disperse internal stress caused by temperature changes to a certain extent. This makes the contacts more adaptable to drastic fluctuations in ambient temperature, maintaining long-term structural stability.
Wide Process Adaptability
The silver alloy layer in the feet makes it suitable for both traditional riveting processes, ensuring a strong connection, and automated welding processes such as laser welding and resistance welding. It offers good weld consistency and high strength, providing convenience for your automated production lines.
Four Reasons to Choose Tri-metal Rivet Contacts
Technological Leadership
Exclusive vacuum diffusion welding technology achieves molecular-level bonding of the three materials, ensuring long-term product stability.
Cost-Effective
Reduces silver material usage by over 50%, significantly lowering material costs while maintaining or even surpassing the performance of pure silver contacts.
Wide Range of Applications
Suitable for a wide range of electrical applications, from low to high voltage, and from consumer electronics to industrial equipment.
Customization Services
Offers comprehensive customization services, optimizing contact size, shape, and performance to meet specific customer needs.
contact us
Hot Tags: tri-metal rivet contacts, China tri-metal rivet contacts manufacturers, suppliers, factory, Silver Contact Points, Double Sides Contacts, Silver Contact Rivet, Composite Contacts, Silver Contacts For Switch, Silver Contacts For Relay
You Might Also Like
Send Inquiry