Like tungsten silver contacts(WAg contact), tungsten copper contacts (WCu contacts) are highly representative tungsten contacts. Tungsten copper contacts are electrical contacts made with tungsten as the base material and copper as an auxiliary material. They are pseudo-alloy products composed of tungsten and copper, and due to their excellent electrochemical properties, they are widely used in electrical equipment.

In terms of physicochemical properties, WCu contacts combine the advantages of both tungsten and copper. They possess not only high melting point, high density, and high hardness, but also good plasticity and a low coefficient of thermal expansion. Furthermore, they exhibit excellent high-temperature resistance, strong corrosion resistance, and ideal electrical and thermal conductivity. They also demonstrate superior resistance to arc burn-through and weld resistance. Notably, when the ambient temperature exceeds 3000℃, the copper in WCu contacts liquefies and evaporates, carrying away a significant amount of heat in the process, thus providing a cooling effect. In addition, generally, the higher the copper content, the better the conductivity and plasticity of the WCu contacts.

In various applications, tungsten copper contacts are a crucial component in many electrical devices, including high-voltage circuit breakers, hydraulic switches, disconnectors, and grounding switches. Their superior performance ensures the stable operation of these devices—playing a vital role in critical aspects such as circuit switching control and current conduction. Whether in power system transmission and distribution or in the power control of industrial equipment, tungsten copper contacts occupy a vital position. Their resistance to arc burn-out and welding ensures that even under frequent operation, high voltage, and high current conditions, these devices maintain a long service life and stable, reliable performance.

It is precisely these superior comprehensive properties that make tungsten-copper contacts one of the indispensable key materials in the modern power industry. From ensuring power distribution in urban power grids to reliably controlling large industrial equipment, tungsten-copper contacts, with their unique material properties, silently safeguard the safe operation of power systems in the harsh environment of electric arcing. As future power equipment develops towards higher voltages and larger capacities, performance-adjustable tungsten-copper composite materials will continue to play their special value, providing a solid material foundation for promoting the advancement of electrical technology. This perfect combination of tungsten and copper will continue to play an irreplaceable and vital role in the transmission of electricity and light.