Copper Tungsten Bar

Copper Tungsten Bar

The use and characteristics of Copper Tungsten Bar

1. Electrode for EDM: The Copper Tungsten Bar produced by our company is suitable. When EDM is used for cemented carbide products, the wear of copper or graphite electrodes is quite fast due to the special properties of WC. EDM of materials. Advantages: high electrical corrosion rate, low loss rate, excellent electrode shape, excellent machining performance, WC surface of the workpiece.

2. Electronic packaging material W-Cu electronic packaging material has both the low expansion characteristics of tungsten and the high thermal conductivity characteristics of copper. What is particularly valuable is that its thermal expansion coefficient and thermal conductivity can be designed by adjusting the composition of the material. Therefore, it brings great convenience to the application of the material. Advantages: It has a thermal expansion coefficient and high thermal conductivity matching with different substrates; excellent high temperature stability and uniformity; excellent processing performance; we use high-purity raw materials, Copper Tungsten Bar packaging materials and heat sink materials with excellent performance are obtained. It is suitable for packaging materials with high-power devices, such as substrates, lower electrodes, etc.; lead frames; thermal control boards and radiators for military and civilian thermal control devices.

3. Vacuum contact material The contact material must have very good machinability and thermal shock resistance. Due to the arcing during contact and breaking, the temperature of the contact material will increase by several thousand degrees Celsius in a fraction of a second. The W-Cu contact material produced by our company is used due to its physical properties. Advantages: high ablation resistance, high toughness, good electrical and thermal conductivity. Good machining performance.

4. The resistance welding electrode combines the advantages of tungsten and copper. It is resistant to arc ablation, anti-fusion welding and low current interception, high strength, large specific gravity, good electrical and thermal conductivity, easy to cut, and has sweating and anti-adhesion, etc. It is often used for spot welding, butt welding, projection welding and butt welding electrodes with certain properties and high temperature resistance. 5. Aerospace materials Tungsten copper material has the properties of high density, sweating cooling performance, high temperature strength and erosion resistance, etc. It is used in the aerospace industry as the nozzle throat lining of missiles and rockets, components of gas rudders, air rudders , hood and weights, etc.

Copper Tungsten Bar Picture:

Type W30CU70

W30CU70 type Copper Tungsten Bar 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.

W7525Cu type

As a composite material of tungsten and copper, W75Cu 25type tungsten-copper alloy electrode has the excellent characteristics of copper's 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 sinks.

Type W80Cu20

The tungsten content of the W80Cu20 type Copper Tungsten Bar 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.

Type W85Cu15

W85Cu15 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

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