| Customization: | Available |
|---|---|
| Type: | Cu (Copper/Copper-Alloy Welding Electrode) |
| Material: | Wcu 70/30, Wcu 75/25, Wcu 80/20, Wcu 90/10 |
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| Composition | Density (g/cm3) | Electrical Conductivity (IACS% Min.) | Thermal Conductivity (W/m-K-1) | Hardness (HRB Min.) |
| WCu 70/30 | 14.0 | 52.1 | 230 | 95 |
| WCu 75/25 | 14.8 | 45.2 | 220 | 99 |
| WCu 80/20 | 15.6 | 43 | 200 | 102 |
| WCu 90/10 | 16.75 | 32.5 | 180 | 107 |
Copper Tungsten alloy Weld Electrodes, utilizing a meticulous process where high-purity tungsten is skillfully pressed, sintered, and then enhanced by infiltration with oxygen-free copper, resulting in a consolidated product that represents a homogeneous microstructure with minimal porosity. This sophisticated combination leverages copper's superior conductivity alongside tungsten's inherent high density, exceptional hardness, and remarkably high melting point, culminating in a composite that embodies the distinguished properties of both elements. Copper-infiltrated tungsten is revered for exhibiting formidable resistance to high-temperature conditions and arc-erosion. It also excels in thermal and electrical conductivity while maintaining a low coefficient of thermal expansion. The interplay between the copper and tungsten quantities in the composite is crucial, with varying amounts impacting tungsten copper's physical and mechanical properties, as well as its melting point. An increase in copper content typically enhances electrical and thermal conductivity, alongside thermal expansion, but may reduce density, electrical resistance, hardness, and strength. Ultimately, achieving an optimal chemical composition is paramount to tailor tungsten copper for specific application needs.
The remarkable Tungsten copper (W-Cu) materials have gained prominence across a multitude of fields and applications, attributed to their extraordinary mechanical and thermophysical properties. These materials are synonymous with high performance, excelling in hardness, strength, conductivity, and resistance to high temperatures and arc erosion. Tungsten copper has been extensively utilized in the manufacturing of electrical contacts, heat sinks and spreaders, die-sinking EDM electrodes, and fuel injection nozzles, among others.
A notable drawback of directly sintering tungsten copper is the reduction in its electrical and thermal conductivity due to activation sintering.
| Materials | Wt% Tungsten Content | Wt% Copper Content |
Grade | RWMA Class | Density (g/cc) | Electrical Conductivity (%IACS) | Hardness (HRB) |
| W70Cu30 | 70 | Balance | A5WC | 10 | 14.18 | 47-52 | 88-95 |
| W75Cu25 | 75 | Balance | A10WC | 11 | 14.80 | 42-50 | 96-99 |
| W80Cu20 | 80 | Balance | A30WC | 12 | 15.60 | 41-49 | 99-104 |
Kefeng Powder Metallurgy has been at the forefront of innovation, delivering superior tungsten alloy metal solutions that serve diverse global products, applications, and industries.
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