Copper tungsten is composed of tungsten and copper allo […]
Copper tungsten is composed of tungsten and copper alloy, commonly used alloy copper content of 10% to 50%. Alloy powder metallurgy method of preparation, has a good conductive thermal conductivity, good high temperature strength and a certain degree of plasticity. At very high temperatures, such as above 3000 ° C, the copper in the alloy is liquefied and evaporated, absorbing heat in a substantial amount and reducing the surface temperature of the material. So this kind of material is also called metal sweating material.
Copper tungsten alloy has a wide range of uses, mainly used to manufacture anti-arc ablation of high-voltage electrical switch contacts and rocket nozzle throat lining, tail rudder and other high temperature components, also used for electric processing electrodes, high temperature molds and other Requires conductive thermal conductivity and high temperature use of the occasion. Copper tungsten selection of fine tungsten, copper powder, refined by the first-soaking sintering process, can withstand nearly 2000 degrees of high temperature and high stress.
Copper tungsten is widely used as high pressure, super hydraulic switch and circuit breaker contacts, protection ring, for the electric pier piercing anvil material, automatic submerged arc welding Tsui, plasma cutting machine nozzle, welding machine, welding machine welding head , Welding wire, sealing anode and spark electrode, spot welding, welding materials and so on.
Copper tungsten alloy used in the aerospace as a missile, rocket engine nozzle, gas rudder, air rudder, nose cone, the main requirement is to require high temperature (3000K ~ 5000K), high temperature air erosion ability, the main use of copper at high temperatures Volatile hair sweating effect (copper melting point of 1083 ℃), reduce the surface temperature of tungsten copper to ensure that the use of high temperature extremes.