Button Switch Copper Terminal
Products Description
A button switch copper terminal is a conductive component that tightly bonds silver-based contact material to a copper terminal substrate using mechanical riveting.
Its core structure includes:
Copper Terminal: Used for current conduction and structural support, possessing high conductivity and good ductility.
Silver Contact Button: Serving as the primary conduction point, it withstands the impact of switching arcs and the flow of current.
Riveted Bonding Layer: Utilizing precision riveting technology to control bonding pressure and temperature, achieving a high-strength metal bond and preventing loosening and poor connections.
The product combines high conductivity, high-strength bonding, and oxidation resistance, making it widely applicable to button switches, relays, contactors, microswitches, and new energy control modules.
Material Advantages: A Perfect Combination of Copper and Silver
1. High-Purity Copper Base (T2, C1100 Standards)
The copper portion uses high-conductivity T2 copper, which is high in purity and low in oxygen content, ensuring stable current conduction and low heat loss.
Conductivity exceeds 98%, suitable for high-current applications.
Excellent plasticity and processing performance ensure complex structures can be formed in one step.
Strong corrosion resistance; the surface is easy to process with nickel plating, silver plating, etc.
2. High-Performance Silver Contacts (Ag, AgNi, AgCdO Optional)
Different types of silver contact materials can be selected according to application requirements:
AgNi (Silver Nickel): Excellent resistance to welding and wear.
AgCdO (Silver Cadmium Oxide): Suitable for high-current, high-arc environments.
Pure Ag (Silver): Highest conductivity, used for low-voltage, high-frequency switches.
The combination of high hardness and high conductivity of Copper Pressed Components results in stable contact resistance, low temperature rise, and longer lifespan during high-frequency switching.
Manufacturing Advantages: Comprehensive Control from Raw Materials to Finished Products
1. Raw Material Control
All copper and silver contact materials are sourced from high-quality domestic and international metal suppliers, ensuring batch purity and stable composition.
The company is equipped with spectrometers, microhardness testers, and other testing equipment to conduct conductivity, composition, and hardness tests on each batch of materials, ensuring quality from the source.
2. Precision Riveting Process
Automated multi-station riveting equipment is used to achieve a high-precision fit between the silver contacts and the copper base.
Riveting pressure and time are precisely controlled by the PLC to ensure uniform metal flow at the mating surface.
Custom-made carbide rivets ensure smooth, crack-free rivets.
Each product undergoes microscopic cross-section inspection to ensure adequate riveting density.
3. Surface Treatment and Protection
Multiple surface treatments are available according to customer requirements:
Nickel Plating: Enhances oxidation and corrosion resistance.
Silver Plating: Improves conductivity and contact reliability.
Deburring and Polishing: Improves assembly precision and appearance consistency.
4. Automated Inspection and Quality Traceability
Utilizing a CCD vision inspection system and an automated In-Die Riveted Silver Contacts resistance tester, we ensure the dimensional and performance stability of each batch of products.
All data is traceable to the production date and raw material batch number, achieving end-to-end quality control.
Detailed Showcase: Quality Reflected in the Minutes
Smooth Contact Surface
Automatic grinding and cleaning processes ensure a smooth and flat contact surface, reducing the concentration of arcing points and extending service life.
Uniform Riveting Joint
Under a microscope, the copper and silver materials are tightly bonded, without pores or delamination, ensuring stable mechanical and electrical performance.
Strictly Controlled Dimensional Tolerances
CNC milling and high-precision molds are used to control Silver Contact Riveted Copper Stamping Parts dimensional errors within ±0.02mm, ensuring smooth assembly.
Standardized Appearance Inspection
All products undergo a visual inspection system to ensure a scratch-free, discolored, and indented surface, resulting in a uniform and aesthetically pleasing appearance.
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