Products Description
Nobel Metal Contact is a high-performance electrical contact structure composed of a silver alloy contact layer and a copper or copper alloy substrate. Its core design lies in using the noble metal working layer to handle the arcing and conduction functions, while utilizing the copper substrate to achieve stable current carrying and structural support, thereby achieving an engineering-grade balance between performance, lifespan, and cost.
Product Advantages
Binary Composite Structure Advantage
The Bi-metal Silver Contacts layer uses a high-performance silver alloy, while the bottom layer is combined with a copper/copper alloy. This precisely balances conductivity and structural strength, offering greater cost control and wider applicability compared to single-material contacts, avoiding compromises between conductivity and mechanical properties.
Material Compatibility Advantage
Offers multi-element silver alloy systems such as AgSnO₂, AgCdO, and AgNi, allowing for precise selection based on current load, operating frequency, and other requirements, covering both environmentally friendly and high-performance applications for AgNi Bimetal Contact Rivets.
Precision Manufacturing Advantage
Bimetal Silver Composite Contact Rivets' dimensional tolerances are strictly controlled within ±0.01mm~±0.05mm, ensuring tight interlayer bonding with no risk of peeling. Arc resistance and contact resistance are stable, resulting in excellent consistency across batches of products.
Key Technical Parameters
Structural Dimensions
The thickness of the Bimetal rivet-type contact layer typically ranges from 0.3 mm to 2 mm; the thickness of the underlying copper/copper alloy ranges from 0.5 mm to 5 mm; the contact diameter covers a range from φ1 mm to φ20 mm.
Electrical Performance
Under typical load conditions, Bimetal Silver Composite Contact Rivets' resistance can reach extremely low levels (under a 10A load, contact resistance ≤100μΩ, temperature rise less than 20K).
Mechanical and Durability Properties
The AgNi Bimetal Contact Rivets layer hardness can reach HV≥120 depending on the material, and the base layer hardness HV≥80. Under standard testing conditions (16A/250V AC), the product exhibits excellent arc resistance and a long electrical life.
Industry Application Cases
Low-voltage Electrical Appliances and Power Protection
Bi-metal Silver Contacts are widely used in the static/moving contacts of molded case circuit breakers and miniature circuit breakers. Their excellent weld resistance and stable contact resistance ensure reliable circuit breaking and safe protection.
Industrial Control and Automation
Made of AgNi composite material, are used in the critical moving contacts of industrial contactors and control relays. They can withstand the high-frequency arcing generated by frequent start-stop cycles, ensuring long-term stable operation of automated equipment.
High-current Switching Equipment
In contactors or load switches requiring the breaking of high currents, Bimetal Silver Composite Contact Rivets provide reliable current carrying and breaking performance due to their high conductivity and strong arc resistance.
Automotive Electrical Systems
In automotive relays and fuse boxes, high-performance AgNi Bimetal Contact Rivets ensure reliable electrical connections under various vibration and temperature shock conditions.
contact us
If you would like to learn more about Nobel Metal Contact's performance, applications, or cooperation models, please feel free to contact us. We will provide one-on-one engineering support to assist in optimizing designs and ensure a long-term stable supply.
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