Time:2025-07-16
Click:198
Tungsten copper alloys (such as CuW80) combine the high melting point of tungsten (3410 ℃) with the excellent thermal conductivity of copper (170 W/m · K), and perform well in extreme environments. Its typical applications include:
High voltage electrical equipment: As a contact material for SF6 circuit breakers, it is resistant to arc erosion and has a lifespan far exceeding that of pure copper.
Electric discharge machining (EDM): CuW70 electrode has stable discharge and low loss rate, suitable for precision mold manufacturing.
Aerospace: Used for rocket nozzles, gas rudders, copper's evaporative heat absorption effect ("sweating cooling") can withstand instantaneous high temperatures of 3000 ℃.
Electronic packaging: Low thermal expansion coefficient (6-12 × 10 ⁻⁶/K) matched with chip materials to reduce thermal stress failure.
China Tungsten Intelligent Manufacturing further enhances the performance of tungsten copper alloys through powder metallurgy and rare earth doping (such as La ₂ O Ⅲ), making them irreplaceable in high-end fields such as nuclear fusion devices and armor piercing cores.