Silver Rivet Contact
Products Description
Silver Rivet Contacts are electrical contact components made by tightly bonding silver or a silver-based alloy to a base material such as copper, brass, or stainless steel through cold or hot riveting. As an essential core component in low-voltage electrical equipment, relays, contactors, switches, circuit breakers, automotive electronics, household appliances, and new energy electronic control systems, silver riveted composite contacts offer excellent conductivity, weld resistance, and affordability, making them an ideal, cost-effective choice.
Product Structure and Process Features
Silver-riveted composite contacts are primarily classified into the following structural forms:
Single Rivet Contact
The silver layer is bonded to a metal substrate on one side, suitable for low-current applications with single-sided conduction.
Double Rivet Contact
The silver layer is evenly distributed on both ends, meeting bidirectional conduction and high-frequency switching requirements. It is commonly used in relays and microswitches.
Bimetal Rivet Contact
Using a composite structure of a silver-based alloy (AgNi, AgCdO, AgSnO₂, AgCuO, etc.) and a copper substrate, it combines high wear resistance with low resistance.
Multilayer Rivet Contact
A transition layer (such as Ni, CuNi, etc.) is added between the silver layer and the substrate to improve solderability and electromigration resistance. It is commonly used in new energy contactors and automotive high-voltage relays.
During production, Apollo Electronic Components (Xiamen) Co., Ltd. uses high-precision automated riveting equipment to ensure concentricity and bond strength between the silver cap and the substrate. The company's proprietary molds and cold extrusion technology effectively control silver consumption, ensuring batch consistency and cost competitiveness.
Material Advantages
| High-purity Silver (Pure Silver 99.99%) |
Extremely low contact resistance and excellent thermal and electrical conductivity. Suitable for signal contacts and relays requiring extremely high electrical conductivity. |
| Silver-nickel alloy (AgNi 10/20/30) |
Strong resistance to welding and high resistance to mechanical wear. Commonly used in high-frequency switching and high-current applications, such as AC contactors and relays. |
| Silver-tin oxide (AgSnO₂ / AgSnO₂In₂O₃) |
Environmentally friendly, cadmium-free material, RoHS compliant. Excellent arc corrosion resistance, suitable for new energy electronic control systems. |
| Silver-cadmium oxide (AgCdO) |
A proven material with excellent resistance to welding. Still widely used in some industrial equipment. |
| Silver-copper (AgCu / AgCe) |
Maintains electrical conductivity while offering increased mechanical strength. Commonly used in medium-load current equipment. |
Through flexible material selection and process matching, we can provide customized Composite Contact material combinations based on customer current levels, interrupting frequency, and service life requirements, achieving the optimal balance between performance and cost.
Manufacturing Advantages and Quality Control
Precision Manufacturing Equipment
We utilize a fully automated Nobel Metal Contacts forming production line, featuring high-speed feeding, precise positioning, and automatic inspection capabilities.
A single machine boasts a daily production capacity of up to 300,000 pieces, ensuring rapid delivery of large-volume orders.
Mold and Process Control
We independently design cold extrusion dies with tolerances within ±0.02mm.
Molds are made of high-strength tungsten steel, ensuring long-term mass production stability.
Intelligent monitoring of riveting pressure, temperature, and silver cap thickness prevents delamination and misalignment.
Quality Inspection System
Each batch of products undergoes electrical conductivity testing, microscopic cross-section analysis, and weld durability testing.
We strictly adhere to ISO9001 and IATF16949 quality systems.
RoHS and REACH environmental testing reports are available for all Spring Electrical Contacts.
Cost and Efficiency Control
Our factory boasts integrated production capabilities, from raw material slitting, stamping, riveting, to electroplating.
Our automated processes reduce silver material loss by over 15%.
We offer OEM/ODM services, supporting custom design and bulk production.
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