Copper Tungsten Electrode
Copper tungsten electrode is a composite metal material that is a combination of high-purity tungsten powder and high-conductivity copper powder with high purity and high plasticity and is refined by static pressing, high-temperature sintering, and melting. Good electrical conductivity, small thermal expansion, no softening at high temperature, high strength, high density, and high hardness.
Product Introduction
Specifications of copper tungsten electrodes
70W30CU type
70W30CU type tungsten copper alloy electrode is a composite material refined by the process of static pressing, high-temperature sintering, and copper infiltration by utilizing the excellent metal properties of high-purity tungsten powder and the plasticity and high conductivity of high-purity copper powder.
75W25Cu type
As a composite material of tungsten and copper, 75W25Cu type copper tungsten electrode has excellent characteristics of copper thermal properties and low expansion. 75%W tungsten copper alloy electrodes have the characteristics of high heat resistance, high thermal conductivity, and low expansion, so 75%W tungsten copper alloy electrodes are often used in resistance welding, electrical contact, and heat sink.
80W20Cu type
The tungsten content of the 80W20Cu type copper tungsten electrode is 80%, the grade is CuW80, the hardness of CuW80 is about 98HRB, and the density is about 15.58g/cm3. The thermal expansion characteristics of tungsten-copper composites are similar to those of silicon carbide, aluminum oxide, and beryllium oxide, and are utilized for substrates and chips.
85W15Cu type
85W15Cu type tungsten-copper alloy electrode is a two-phase structure pseudo-alloy mainly composed of tungsten and copper elements. It is a metal matrix composite material. Due to the large difference in physical properties between metal copper and tungsten, it cannot be produced by melting and casting. Powder alloy technology for production.
Main properties of copper tungsten electrode applications
Types | Density (g/cm3) | HB(MPa) | Electric Conductivity (% IACS) | State |
WCu10 | 16.8-17.2 | ≥2550 | > 27 | Rods, plates, accessories |
WCu20 | 15.2-15.6 | ≥2160 | > 34 | |
WCu25 | 14.5-15.0 | ≥1940 | > 38 | |
WCu30 | 13.8-14.4 | ≥1720 | > 42 |
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