Products Description
High Conductivity Copper Contacts are integrally molded pure copper contact components, also known in the industry as "copper nails". They are made of high-purity cathode electrolytic copper wire with Cu≥99.99% as the base material and are formed in one step through a multi-station cold forging process. They can be used without electroplating in their natural color, or with nickel plating for anti-oxidation protection, or with silver plating to further improve contact conductivity.
Core Product Nature and Characteristics
Integrity of Metal Flow Lines
During cold forging, metal grains are elongated and densified along the deformation direction, forming continuous fibrous flow lines. These flow lines completely envelop the product's contours, much like the grain of wood, avoiding the strength weaknesses caused by cutting the flow lines during machining. This significantly improves the Copper Electrical Contacts' shear resistance and fatigue resistance.
Material Densification and Enhanced Performance
Under high pressure, the tiny pores inside the Red Copper Contacts material are compressed, bringing the density close to the theoretical value, achieving a one-time forming rate exceeding 98%. This not only improves mechanical strength but also slightly enhances conductivity due to the denser grain boundary structure.
Superior Surface Quality and Dimensional Accuracy
The Electric Copper Contacts forming process is completed within a closed mold, directly obtaining a smooth surface with a surface roughness Ra≤1.6μm without secondary processing. High dimensional accuracy and excellent consistency make it particularly suitable for mass production of contacts with diameters ≤φ25mm.
Core Advantages
Significant Cost Advantage
Compared to solid silver contacts, this Solid Contact for Switch Part reduces costs by 30%-60%, with the electroplated version offering the lowest cost. This significantly reduces production costs for low- to mid-range electrical products while ensuring performance meets standards, helping customers enhance product price competitiveness and adapt to large-scale procurement needs.
Compatible Conductivity
The 99.99% high-purity copper substrate boasts a conductivity of 58 MS/m, far exceeding brass and bronze contacts. The electroplated version meets the needs of ordinary switches, while the silver-plated version for Electric Copper Contacts is suitable for low- to mid-range relays. No extra cost is required for excessive performance, precisely matching low- to mid-range scenarios.
Flexible Scenario Adaptability
Three surface treatment options are available for Red Copper Contacts: electroplated, nickel-plated, and silver-plated, suitable for dry, humid, and slightly more conductive scenarios respectively. This covers a wide range of products including low- to mid-range relays, wall switches, and micro switches, offering strong versatility.
Authoritative Certifications
The company has passed multiple authoritative international and domestic certifications. Its Copper Electrical Contacts fully meet the quality standards for low- to mid-range electrical products and can be directly adapted to global market demands.
Quality Management System Certification: ISO9001:2015 quality management system certification, covering the entire process of product design, production, testing, sales, and service, ensuring standardized and regulated quality management and guaranteeing batch consistency;
Environmental Certification: RoHS environmental certification, Red Copper Contacts are free of harmful substances such as lead, mercury, and cadmium, meeting global environmental requirements for civilian and industrial electrical products, and can be exported to Europe, America, Southeast Asia, and other regions.
contact us
If you are looking for a cost-effective High Conductivity Copper Contacts solution that balances stable conductivity for your relay or switch projects, please contact our engineering team. We will quickly evaluate your application requirements and provide professional advice on mass production.
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