Tungsten Copper Bar, also called tungsten copper alloy, is the composite of tungsten and copper which own it excellent performance of tungsten and copper. The result is a relatively hard material with superior arc and wear resistance, high physical Properties: at elevated temperatures, and good electrical and thermal conductivity.
W80/Cu20 Polished tungsten copper is used for arcing contacts in SF6 circuit breakers for ultra high, high and medium voltage applications. At the heart of the switching chamber, WCu contacts are exposed to extreme mechanical and thermal loads: When the circuit is opened and closed, the arc starts directly at the switch contacts at a temperature of up to 20 000 °C.
Application of Tungsten Copper Bar for electrical contact
Arcing contacts and vaccum contacts in high and medium voltage breakers or vaccum interruptors
Electrodes in electric spark erosion cutting machines
Heat sinks as passive cooling elements of electronic devices
Electrodes for Resistance Welding
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