Tungsten Copper Contact
Tungsten Copper Contact
Description:Tungsten copper contacts are a pseudo-two-phase alloy composed of Cu and W elements, which is a composite metal material. Due to the large difference in physical properties between metal copper and metal tungsten, copper immersion technology is generally used for production, mainly by pressing tungsten powder particles into the desired shape, then sintering, and then infiltrating the tungsten skeleton with molten copper.With the development of technology, in order to improve the service life of tungsten copper contact materials and optimize various properties, there are now more advanced manufacturing methods, such as fiber reinforcement method, isostatic pressing-dipping method, ion implantation, arc melting law, etc.
One of the advantages of tungsten-copper alloy is that different metal properties can be achieved by changing the ratio of tungsten and copper, such as arc erosion resistance can be optimized.Tungsten copper contacts have the advantages of high melting point, high density, high strength, low thermal expansion coefficient, excellent thermal conductivity and electrical conductivity, strong wear resistance and heat resistance, and good metal removal ability.
Application:Tungsten copper contacts have been widely used as electrical contact materials and electrode materials, and are the best materials for EDM applications.Tungsten copper contacts have good resistance to arc erosion, mechanical wear, and strong weldability. They are usually used as contact materials in arc tips or arc runners, air or vacuum equipment, signal source contactors for electronic instruments, circuit breakers ( SF6 circuit breakers), relays, electrical transfer switches in high and medium voltage environments, and high temperature components in appliance thermostats and motor protectors.
Tungsten Copper Contact Specifications:
Grade | W50Cu50,W70Cu30,W90Cu10,etc. |
Technique | Pressing, Sintering, Infiltration, Annealing,Rolling |
Density | 11.9g/cm3-18.5g/cm3 |
Electric Conductivity(IACS) | ≥26-55 |
Shape | Round,Square and Customized |
Type | Copper Tungsten Contact Tips,Tungsten Copper Arc Contact,Tungsten Copper Spring Contacts,Tungsten Copper Vacuum Contacts,etc. |
Surface | Oxide, Plating, Brushing, Polishing, Blackened, |
Standard | ASTM B702,DIN,GB |
Certification | ISO 9001,GB/T28001-2011 |
Tungsten Copper Contact Pictures:


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