Products Description
Red Copper Contact Rivets for Relays utilize high-purity cathodic electrolytic copper wire with extremely low oxygen content, manufactured in a single piece through a precision cold-forming process to form a standardized electrical contact functional body. It is not merely a simple metal fastener, but an engineered component that achieves an ideal balance between superior conductivity, excellent ductility, good heat resistance, and significant cost advantages. In the mass-production GE market, its near-limit conductivity, flexible functional surface treatments, and unparalleled cost-effectiveness make it the preferred basic material solution for replacing precious metal contacts and achieving high-volume, high-reliability electrical connections.
Core Technical Features
Diverse Specifications
Copper Electrical Contacts' wide range of nominal diameters (φ0.8mm-φ25mm), contact lengths from 2mm to 150mm, with tolerances strictly controlled within ±0.02mm-±0.01mm to meet high-precision contact requirements.
Multi-functional Heads
Offers various head shapes, including flat and curved heads to adapt to different welding methods and spatial structures for Red Copper Contacts.
Advanced Surface Treatments
Offers nickel plating (Ni≥3μm), gold plating (Au≥0.1μm), silver plating (Ag≥1μm), or passivation treatments. All surface treatment processes comply with RoHS and REACH environmental certifications, ensuring both conductivity and corrosion resistance for Electric Copper Contacts.
Manufacturing Process
Substrate Purification
Solid Contact for Switch Part using industrial copper as raw material, purification is carried out through cathodic electrolysis, controlling purity to 99.99% and oxygen content <20ppm. Products meeting these standards are then kept on hand, and a purification record is established.
01
Wire Processing
The purified copper is drawn into wires of the corresponding diameter and cut into wire segments of the appropriate contact length. The wire diameter and cut surface quality are inspected for Red Copper Contacts.
02
Cold Forging
The wire segments are placed in a cold forging mold and processed into flat or curved-head Electric Copper Contacts. Dimensional accuracy and forming quality are inspected, and defective products are rejected.
03
Surface Treatment
According to customer requirements, nickel plating, gold plating, silver plating, or passivation treatment is performed on the Solid Contact for Switch Part to ensure that the surface treatment meets standards and complies with environmental certifications.
04
Full Performance Inspection
Dimensional accuracy, conductivity, surface quality, and high-temperature oxidation resistance are inspected. Qualified products proceed to the next step; unqualified Electric Copper Contacts are reworked or scrapped.
05
Quality Control and Certification
Process Control: Implementing SPC (Statistical Process Control) to monitor key parameters such as cold heading pressure and dimensional fluctuations in real time, ensuring the process capability index (Cpk) is consistently ≥1.33 for Red Copper Contacts.
Reliability Testing:
- Contact Resistance Testing: Simulating actual loads to ensure the copper electrical contacts' resistance is within design thresholds.
- Environmental Testing: Conducting high temperature and humidity, thermal shock, and salt spray tests according to IEC 60068-2 standards to verify the weather resistance of the surface treatment.
Compliance Certification: All materials and surface treatment processes comply with RoHS and REACH environmental directives; third-party testing reports are available for Electric Copper Contacts.
contact us
If you are selecting cost-effective Red Copper Contact Rivets for Relays for your relay, switch, or BMS system, please contact us for free samples, technical drawings, or a customized solution evaluation. Our engineering team can assist you in quickly completing material matching and cost optimization.
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