What is tungsten copper contact?
Tungsten copper contact is a high-temperature alloy product of tungsten and copper, mainly used in power equipment and is an important component of power equipment.
Which industry is tungsten copper contact mainly used in?
Tungsten copper contacts are key materials in the field of power.
Tungsten copper contacts, as important components in power equipment, play a crucial role in ensuring the safe and stable operation of circuits.
Why is tungsten copper material the preferred choice for power contacts?
1) Tungsten copper alloy material has high temperature resistance: Metal tungsten material has a very high melting point (3422 ºC), which can enable tungsten copper contacts to maintain a stable physical form in high current and high voltage working environments, even if a large amount of heat is generated, and it is not easy to melt or deform.
2) Tungsten copper alloy has good resistance to arc erosion and welding: tungsten copper contacts have a lower erosion rate under the action of an arc and are not easily eroded by the arc. At the same time, tungsten copper alloy also has excellent resistance to welding, which can effectively avoid the phenomenon of contact adhesion during the opening and closing process, ensuring the normal continuity of the circuit.
3) Tungsten copper alloy also has good conductivity and thermal conductivity: Copper has excellent conductivity and thermal conductivity. In tungsten copper alloy, this characteristic of copper is preserved, allowing tungsten copper contacts to quickly conduct current and dissipate heat, reduce the temperature of the contact surface, and reduce the risk of performance degradation and failure caused by overheating.
4) Tungsten copper alloy has high hardness and strength: Tungsten material has high hardness and strength. After tungsten and copper are synthesized into tungsten copper alloy, it has good wear resistance and mechanical impact resistance. As a power contact switch, tungsten copper can maintain the shape and dimensional accuracy of the contact during frequent opening and closing processes, extend the service life, and have good contact performance.
Technical parameters
| Materials |
Wt% Tungsten Content |
Wt%
Copper Content |
Density (g/cc) |
Electrical Conductivity (%IACS) |
Hardness (HB) |
| W65Cu35 |
65 |
Balance |
13.30 |
44 |
88 |
| W70Cu30 |
70 |
Balance |
13.80 |
42 |
88 |
| W75Cu25 |
75 |
Balance |
14.50 |
38 |
94 |
| W80Cu20 |
80 |
Balance |
15.15 |
34 |
98 |
Technical parameters Note: The values are typical and not to be used for specifications.
For three decades Kefeng Powder Metallurgy has pioneered and produced the best tungsten alloy metal solutions for the world's products, applications and industries.
){kind=link}