What Is Tungsten Copper Contact

Tungsten copper contact is 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 alloy electrode materials are used because of tungsten copper alloy electrode unique physical properties. Tungsten copper alloy electrode material offered by us is high quality. We can provide all kinds of tungsten copper electrode as your requirements. Tungsten copper electrode is easy to be machined.

Advantages

Tungsten Copper Contact Picture

Pure tungsten and copper, tungsten copper electrode uniform material, low content of gas and impurity, very high burn-off resistance, excellent thermal and electrical conductivity, all necessary joining and machining processes. 

1, High arc resistance combined with good electrical conductivity 

2, High thermal conductivity

3, low thermal expansion

4, Special tungsten copper alloy products are available at customers' requests 

Applications

1, Arcing contacts and vacuum contacts in high and medium voltage breakers or vacuum interrupters

2, Electrodes in electric spark erosion cutting machines

3, Heat sinks as passive cooling elements of electronic devices

Properties

1, Material: 50-90% Tungsten / 50-10% Copper

2, Density: 11.80~ 16.80 g/cm3

3, Conductivity (IACS %): 54~27

4, Resistivity: 3.0~6.5 µΩcm

5, Techniques: Copper unfiltered Tungsten block in vacuum high-temperature stove.

If you have any inquiry concerning tungsten copper products, please do not hesitate to e-mail us by : sales@chinatungsten.com

What Is Tungsten Copper Heat Sink

Tungsten copper heat sink is a composite of tungsten and copper. The coefficient of thermal expansion (CTE) of the composite can be designed by controlling the content of tungsten, matching that of the materials, such as Ceramics (Al2O3, BeO), Semiconductors (Si), Metals (Kovar), etc. The products are widely application in the fields such as radio frequency, microwave, high power diode packaging and optical communication system.

Advantages

High thermal conductivity, Excellent hermetic, Excellent size control, surface finish and flatness, Semi-finished or finished (Ni/Au plated) products available properties of WCu and MoCu heat materials.

Tungsten Copper Heat Sink Picture

Tungsten copper heat sink owns not only the low expansion of tungsten and high heat conductivity of copper. Its expansion index and heat conductivity can also be changed through changing the content of the materials, which provides convenience to the using of the material. We can supply various specifications and the Copper tungsten sheet with different tungsten proportions.

Tungsten copper high performance composites are fabricated from carefully controlled porous tungsten that is vacuum infiltrated with molten copper. This results in a WCu composite that has high conductivity and a matched low thermal expansion for heat sinks. The products are widely application in the fields such as radio frequency, microwave, high power diode packaging and optical communication system.

If you have any inquiry concerning tungsten copper products, please do not hesitate to e-mail us by : sales@chinatungsten.com

Tungsten Copper Spring Contact

Tungsten copper spring contact with excellent resistance arc burning and welding resistance, breaking arc performance, good thermal conductivity, thermal expansion, high temperature does not soften, high strength, high density, high hardness and other characteristics. It has good electrical and thermal conductivity, good high temperature strength and certain plasticity. At a temperature above 3000 ℃, copper alloy is liquefied evaporated absorbs heat, reduces surface temperature, so these materials are also referred to as metal materials sweating.

Tungsten Copper Spring Contact Picture

Tungsten copper spring contact is made by powder metallurgy method high pressure contacts of different shapes. Is the use of high-purity tungsten copper contact of tungsten metal powder excellent characteristics and plasticity, high conductivity copper powder of high purity, etc., by isocratic pressing, high temperature sintering, melting refined copper infiltration process of composite materials.

Tungsten copper spring contact is widely used as high pressure, ultra-hydraulic switch contacts and circuit breakers, protection ring for electric upsetting anvil block material, conductive Tsui automatic submerged arc welding, plasma cutting machine nozzles, welding, welding of welding head, seam welding wheels, electrodes and spark electrode sealing gas Mao point, spot welding, butt welding materials.

Any feedback or inquiry of tungsten copper alloy products please feel free to contact us: sales@chinatungsten.com.

Tungsten Copper Contact Spare

Tungsten copper contact spare is an alloy composite of tungsten and copper which has the combination s of the excellent properties of tungsten and copper, such as heat resistance, aberration resistance, high density, excellent thermal and electrical conductivity.

Tungsten copper contact spare is 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. Only tungsten copper materials will stand these high temperature & aberration.

Application

Tungsten copper contact spare is the best suitable material for electrical discharge machining (EDM) applications. It has excellent wear resistance, good metal removal rate and ability to retain good detail. It is used where speed and wear resistance are most important.

Tungsten Copper Contact Spare Picture

Tungsten copper contact spare has good resistance to arc erosion, mechanical wear, contact welding and good conductivity. They are usually selected for oil, gas, air or vacuum, devices. The contact surfaces will oxidize when switched in air. These press-sinter-infiltrate materials should only be considered for arcing surfaces in air when used as arcing tips, arc plates and arc runners. When switching with moderate contact arcing, the tungsten copper with a high copper content may give the lowest erosion. As arcing severity increases, the tungsten copper with the higher refractory content withstand arc erosion better. Tungsten copper contact spare is also used as arcing edges of selector switchblades in transformer tap changers.

Any feedback or inquiry of tungsten copper alloy products please feel free to contact us: sales@chinatungsten.com.