2010年8月25日星期三

Tungsten Copper

Tungsten is widespreading use in the world and copper is also putting use everywhere. Thus, tungsten copper is catching our eyes to make use of it.
Tungsten-Copper alloy is the composite of Tungsten and Copper, which owns the excellent performances of Tungsten and Copper, such as heat-resistant, ablate-resistant, high-intensity, excellent thermal and electrical conductivity. It is easy to be machined. It is used widely in such industries as engine, electrical power, electron, metallurgy, spaceflight and aviation.
Tungsten-copper composites are widely used in mechanical and electrical engineering. Typical applications include high-, medium-, and low-voltage circuit breakers, resistance welding electrodes, and electrode materials for electrical discharge machining, and heat sink materials for mocroelectronic packaging (W-Cu). More recently, W-Cu composites have been tested as heat flux components in experimental fusion reactors and as materials in MHD (magnetohydrodynamics) power generation systems.
Using CIP formation, sintered tungsten skeleton and infiltrating copper (silver) technology, large size and special shape products of tungsten-copper (silver) composites with 6-90 percent of copper are produced, such as electric contacts, electrode, refractory parts, heat sinks and parts of rocket, We can also produce sheet material, tubing, plate and other small products by mould pressing, extrusion pressing and MIM.
Tungsten Copper for electrical
Tungsten copper electrical contacts are subjected to extreme mechanical and thermal stresses during operation. For fractions of a second, temperatures rise to several thousand degrees as a result of the arcing. Our tungsten-Copper materials are used owing to their unique physical properties.
Tungsten Copper for Heat Sinks
Tungsten-Copper high performance composites are fabricated from carefully controlled porous tungsten that is vacuum infiltrated with molten copper. This results in a W/Cu composite that has high conductivity and a matched low thermal expansion for heat sinks.
It is a composite of tungsten and copper. By controlling the content of tungsten, we can design its coefficient of thermal expansion (CTE), matching that of the materials, such as Ceramics (Al2O3, BeO), Semiconductors (Si), Kovar, etc.
Tungsten copper golf weight attachment
This refractory metal composite materials are a combination of tungsten combined with copper or silver. The manufacturing process is to press the refractory, sinter the pressed compact at a high temperature, and infiltrate with copper or silver. All this is done under very closely controlled conditions. The result is a relatively hard materials with superior arc and wear resistance, high physical properties at elevated temperatures, and good electrical and thermal conductivity.
Tungsten copper has the wide range of application , for example, for heat sinks. Therefore, if we take full advantage of it, we can be for the benefit of us.

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