Electrical Tungsten Contact
Electrical Tungsten Contacts are high-performance components made from pure tungsten (≥99.95% W) or W-Cu/W-Ag alloys (10–50% Cu/Ag), shaped as discs/studs for critical electrical switching. Ultra-high melting point (3410°C), superior arc resistance, and low thermal expansion ensure reliable conduction/interruption in high-voltage/high-frequency environments. Powder metallurgy (sintering/pressing) forms dense cores, precision-machined, and welded to copper/steel substrates via automated resistance/laser welding (±5μm alignment), with post-plating (Ni/Au) for corrosion resistance.
Your Professional Electrical Tungsten Contact Supplier
Xiamen Apollo Electric Co.,Ltd was established in 1990, focus on and professional in the manufacturing of Electric Silver Contacts and related products. The main products include Silver Contact Rivets, Silver Contact Tips, Contact Riveted Assemblies, Contact Welded Assemblies, Tungsten Contacts, Relay Cores, Metal Stamping Parts, Metal Welding Parts etc. The electrical accessories products are widely used in low-voltage electrical appliances such as Relays, Switches, Contactors, Circuit Breakers, Controllers, Timers, Thermostats and so on.
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Electrical Tungsten Contacts are precision components shaped as discs, studs, or custom forms from pure tungsten (≥99.95% W) or W-Cu/W-Ag alloys (10–50% Cu/Ag). Leveraging a 3410°C melting point and excellent arc resistance, they excel in high-voltage/high-frequency applications like circuit breakers and relays. Powder metallurgy forms dense cores, precision-machined, and welded to copper/steel substrates via automated resistance/laser methods (±5μm alignment). Post-plating (Ni/Au) enhances corrosion resistance. Ultra-high temperature stability, superior arc erosion resistance, and long service life in harsh electrical environments. Critical in power grids (HV circuit breakers) and aerospace (ignition systems), delivering reliable switching for extreme conditions.
Why Choose Us
Successful Industry Experiences
Xiamen Apollo has in-depth cooperation with Chinese and foreign low-voltage electrical appliance manufacturers and have accumulated a lot of successful industry experiences and future product development trends.
Professional Team
We have a professional and experienced technical development group.
The members in our group are willing to design and manufacture products with both standard and customized specifications.
Foreign Trade Market
Our main market is Europe,Middle East,South America,Africa and Asia.
Quality Control
All of our products must be 100% tested to ensure the functionality, reliability, security and durability before shipment.
Electrical Tungsten Contact Specifications
|
Model |
R6*1.6/3*2(50S) |
|
Product name |
Electrical contact points |
|
Material |
Ag/Cu, AgNi10/Cu,AgCdo10/Cu,Ag,AgNi,AgCdo |
|
Composite Type |
Solid/bimetal/trimetal rivet |
|
Application |
Wall switch,relay,thermostat,contactor,breaker,timer,etc |
|
Certification |
ISO9001:2015 |
Key Features
High resistance to wear and corrosion
Electrical tungsten contact is a hard and durable material, exhibiting high resistance to wear and corrosion, ensuring long-term reliability and performance in harsh environments.
Good arc resistance
Electrical tungsten contact resistance to arc erosion is crucial in switching applications, where electrical arcs can cause damage and wear to contact surfaces. Tungsten can withstand the effects of arcing more effectively than many other materials.
Thermal management
Electrical tungsten contact high thermal conductivity helps dissipate heat generated during operation, contributing to stable and reliable performance.
Durability and long life
The combination of high melting point, wear resistance, and arc resistance results in contacts with a longer lifespan and the ability to withstand numerous switching cycles.
Types of Electrical Tungsten Contacts Available
Copper Tungsten Contact Points
These are reliable options for welding and other heavy tasks. Copper makes them stronger and better at handling high temperatures.
Cemented Tungsten Carbide Contact Points
Cemented tungsten carbide points are built to last in demanding situations.
Ceramic Coated Tungsten Points
Ceramic-coated tungsten points are well suited to harsh, high-temperature environments. The ceramic layer protects the tungsten core from heat damage.
Copper Infiltrated Tungsten Contact Points
The copper seeps into the tungsten, creating a strong, conductive contact. These points excel in both electrical and thermal conductivity.
Key components
Tungsten Material
Tungsten (or its alloys) forms the core of the contact, chosen for its ability to withstand high temperatures and arcing without significant degradation.
Conductive Substrate
A material like copper or iron provides a strong and conductive base for the tungsten contact, ensuring efficient electrical flow.
Joining Method
Brazing is a common technique to securely attach the tungsten to the substrate, ensuring a robust and reliable connection.
Plating (Optional)
A layer of nickel or gold plating is often added to enhance corrosion resistance and improve surface properties.
Applications
Applications
Tungsten contact points are a core part of tungsten inert gas (TIG) welding. In this process, welders use them to create precise arcs to form strong and clean welds.
Electrical and Electronic Components
In electrical and electronic devices, contact points manage power flow and act as switches or connectors. Tungsten's strength and resistance to wear make it ideal for use in electrical relays, switches, and sensors.
High-Temperature Industrial Processes
People also deploy tungsten contact points in industries requiring high-temperature operation, like smelting, glassblowing, and metal casting.
Machining and Tooling
In machining and tooling, tungsten contact points are installed on cutting tools, dies, and molds.
Packaging & Shipping
Packing
First put 500-5000 pcs into small plastic bags or vacuum plastic bags, then in separated small carton box, at last Into hard cardboard box.
Shipping
We will choose the best way according to customer's requests.
By Air, to the indicated airport.
By Express (FedEx, UPS, DHL, TNT, EMS), to the indicated address.
By Sea, to the indicated sea port.
FAQ
We're professional electrical tungsten contact manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade electrical tungsten contact from our factory.
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