W75Cu25 Copper Tungsten Alloy Bars For Electric Spark Electrode
W75Cu25 Copper Tungsten Alloy Bars For Electric Spark Electrode
Copper Tungsten Alloy Bars are composite material of tungsten and copper, which has excellent properties of tungsten and copper, such as heat resistance, ablation resistance, high strength, excellent thermal and electrical conductivity. wCu alloy is easy to process. Tungsten copper alloy is widely used in engine, electric power, electronics, metallurgy, aerospace, aviation and other industries. CIP molding, sintered tungsten skeleton and copper (silver) infiltration techniques are used to produce large size and special shape products of wCu composites containing 6-90% copper, such as electrical contacts, electrodes, refractory parts, heat sinks and rocket parts.
Specifications of Copper Tungsten Alloy Bars
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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 | 12.30 | 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 | 13.30 | 155 | 3.9 | 44 | |
| CuW(70) | 30±2.0 | 0.5 | Balance | 13.80 | 175 | 4.1 | 42 | 790 |
| CuW(75) | 25±2.0 | 0.5 | Balance | 14.50 | 195 | 4.5 | 38 | 885 |
| CuW(80) | 20±2.0 | 0.5 | Balance | 15.15 | 220 | 5.0 | 34 | 980 |
| CuW(85) | 15±2.0 | 0.5 | Balance | 15.90 | 240 | 5.7 | 30 | 1080 |
| CuW(90) | 10±2.0 | 0.5 | Balance | 16.75 | 260 | 6.5 | 27 | 1160 |
Advantages of Copper Tungsten Alloy Bars
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High thermal conductivity
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Low thermal expansion
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Combination of high arc resistance and good conductivity
Copper Tungsten Alloy Bars Picture:
Applications of Copper Tungsten Alloy Bars
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Electrode for resistance welding
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Radiator as passive cooling element of electronic equipment
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Electric spark erosion cutting machine electrode
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Arc contacts and vacuum contacts in high and medium voltage circuit breakers or vacuum interrupters
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