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Tungsten copper alloy
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Product Details
Place of Origin: | China |
Product Description
Description
Mingguan is a top Chinese Manufacturer of tungsten metal products including tungsten copper, tungsten alloys, pure tungsten, tungsten bar, sheet, plate, foil, wire and tungsten sintered barsand so on
Tungsetn copper(CuW, or WCu) alloy is a pseudo-alloyof tungsten and copper. As copper and tungsten are not mutually soluble, the material is composed of distinct particles of one metal dispersed in a matrix of the other one. The microstructure is therefore rather a metal matrix composite than a true alloy.
Copper Tungsten alloy combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, highly thermally and electrically conductive, and easy to machine.
Applications of Tungsten Copper Composites (WCu Alloy)
Copper tungsten alloys are used where the combination of high heat resistance, high electrical and/or thermal conductivity, and low thermal expansion are needed. Some of the applications are in electric resistance welding, as electrical contacts, and as heat sinks. As contact material the alloy is resistant to erosion by electric arc. Tungsten copper alloys are also used in electrodes for electrical discharge machining and electrochemical machining.
The CuW75 tungsten copper alloy, with 75% of tungsten, is widely used in chip carriers, substrates, flanges and frames for power semiconductor devices. The high thermal conductivity of copper together with the low thermal expansion of tungsten allows thermal expansion matching to silicon, gallium arsenide, and some ceramics.
Copper Tungsten alloy with 70-90% of tungsten is used in liners of some specialty shaped charges. The penetration is enhanced by factor 1.3 against copper for homogeneous steel target, as both the density and the break-up time are increased. Tungsten powder based shaped charge liners are especially suitable for oil well completion. Other ductile metals can be used as binder in place of copper as well. Graphite can be added as lubricant to the powder.
The manufacturing process of Tungsten copper alloy is to press the refractory (tungsten or tungsten carbide), sinter the pressed compact at a high temperature, and infiltrate with copper. All of this is done under very closely controlled conditions. The mechanical and physical properties of Tungsten copper alloy vary with composition. The thermal and electrical conductivity increase with the amount of copper, while the hardness, strength, and resistance to mechanical wear increase with the amount of tungsten or tungsten carbide. The application determines the material choice.
Code No. | Chemical Composition % | Mechanical properties | ||||||
Cu | Impurity | W |
Density (g/cm3 ) |
Hardness HB |
RES( cm) |
Conductivity IACS/ % |
TRS/ Mpa | |
CuW(50) | 50+2.0 | 0.5 | Balance | 11.85 | 115 | 3.2 | 54 | |
CuW(55) | 45+ 2.0 | 0.5 | Balance | 12.3 | 125 | 3.5 | 49 | |
CuW(60) | 40+2.0 | 0.5 | Balance | 12.75 | 140 | 3.7 | 47 | |
CuW(65) | 35+2.0 | 0.5 | Balance | 13.3 | 155 | 3.9 | 44 | |
CuW(70) | 30+2.0 | 0.5 | Balance | 13.8 | 175 | 4.1 | 42 | 790 |
CuW(75) | 25+2.0 | 0.5 | Balance | 14.5 | 195 | 4.5 | 38 | 885 |
CuW(80) | 20+2.0 | 0.5 | Balance | 15.15 | 220 | 5 | 34 | 980 |
CuW(85) | 15+2.0 | 0.5 | Balance | 15.9 | 240 | 5.7 | 30 | 1080 |
CuW(90) | 10+2.0 | 0.5 | Balance | 16.75 | 260 | 6.5 | 27 | 1160 |
Contact Us
- Changsha Mingguan Metal Technology Co.,LTD
- Contact nameMs Janet
- Phone86-731-82826450
- AddressNO.1101 Room, Huahai Building, Jiefang East Road, Furong District Xi'an,Shaanxi
molybdenum products | New product | tungsten alloy | Tungsten copper |
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