CuW material has good performance of withstand voltage and anti-arc ablation. The materials are most widely used in various types of switch arc contacts. Our company has adopted vacuum infiltration technology to produce copper tungsten arcing contacts.. And we can supply 200,000 pieces to the market yearly.
1.The chemical composition and properties
|
Material |
Chemical Compositions (wt%) |
Mechanical Properties |
|||||
Cu |
Oxygen |
Nitrogen |
Hardness HB (Mpa) |
Density (g/cm3) |
Electrical Conductivity (Ms/m) |
Flexural Strength （Mpa） |
|
CuW60 |
40±2 |
—— |
—— |
≥140 |
≥12.75 |
≥27 |
—— |
CuW70 |
30±2 |
—— |
—— |
≥175 |
≥13.80 |
≥24.4 |
≥790 |
CuW80 |
20±2 |
—— |
—— |
≥220 |
≥15.15 |
≥22 |
≥980 |
CuW90 |
10±2 |
0.0050 |
0.0008 |
≥260 |
≥16.75 |
≥20 |
≥1160 |
2. main material:CuW80+Cu,CuW70+Cu,CuCuW75+Cu, CuW80+CuCr1,CuW70+CuCr1,CuCuW75+CuCr1
3. W-Cu Contacts for SF6 switchgear can be customered according to special design.
4. Samples can be offer.
http://www.sirui-material.com/