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2012年11月22日星期四

Tungsten Copper for Instant High Temperature Material

Tungsten copper alloy, the copper content of the alloys in common for 10% to 50%.System alloy powder metallurgy method has a good electrical and thermal conductivity, preferably of high-temperature strength and certain plasticity. At very high temperatures, such as more than 3000 ℃, a copper alloy is liquefied evaporation, a large number of absorbing heat, reducing the temperature of the material surface. Therefore, such material is also known as metal sweating. Wider use of tungsten copper alloy, is mainly used to manufacture high voltage electrical arc ablation resistance switch contacts and the rocket nozzle throat insert, rudder and other high temperature components, is also used as the electrode electrically processing, high temperature molds as well as other requirements of thermal conductivity properties and high-temperature use of the occasion. First tungsten copper selection of fine tungsten, copper powder refined by leading soaked sintering process, can withstand nearly 2,000 high temperature and high stress, has a high melting point, high hardness, resistance to burning and good anti-adhesion, electrical erosion surface of the product finish high, very high precision, low loss. Tungsten and copper is widely used as a high-pressure, super-hydraulic switch and circuit breaker contacts, protection ring for electric upsetting anvil block material conductive Tsui, automatic submerged arc welding, plasma cutting machine nozzle, welding machines, welding machines welding head seam welding wheel the gas sealing Mao electrode and point spark electrodes, spot welding, touch welding materials.
The advantages of tungsten copper alloy combined of copper and tungsten, which include high-strength, high density, high temperature resistance, arc ablation, conductive electric performance, processing performance. High quality tungsten powder and oxygen-free copper powder, application isocratic pressing, to ensure the purity of the product, and accurate ratio, organized crime, performance arc breaking performance, good electrical conductivity, thermal conductivity thermal expansion. Tungsten copper material is a preferred material to meet the above requirements.

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