Tungsten Carbide Roll
Tungsten carbide roller ring is a kind of metallurgical tool which consists of tungsten carbide and cobalt with high hardness and wear resistance. It has advantage of high wear resistance, long life and high efficiency during the high speed rolling.
1. Geometry Tolerance
Axial Run-out | Radial Run-out | End Face Run-out | End Face Parallelism | End Face Flatness |
≦0.015mm | ≦0.02mm | ≦0.015mm | ≦0.01mm | ≦0.01mm |
2. Roughness
Inner Hole | Outer Circle | End Face | Groove Face |
≦ 0.3 μm | ≦ 0.4 μm | ≦ 0.4 μm | ≦ 0.8 μm |
3. Performance
No. | Chemical Composition | Mechanical Properties | Physical Properties | |||||
Co+Ni % | WC % | Hardness HRA |
TRS ISO B MPa |
Press Strength MPa |
Young’s Modulus KN/mm |
Density g/cm3 |
Thermal Conductivity Cal/cm/sec/c |
|
1 | 10 | 90 | ≥86.0 | ≥2500 | 3500 | 560 | 14.2-14.5 | 0.2 |
2 | 15 | 85 | ≥83.5 | ≥2520 | 3300 | 540 | 13.8-14.2 | 0.2 |
3 | 20 | 80 | ≥82.0 | ≥2570 | 3100 | 480 | 13.3-13.9 | 0.18 |
4 | 25 | 75 | ≥79.0 | ≥2400 | 2800 | 420 | 12.9-13.4 | 0.17 |
5 | 30 | 70 | ≥78.5 | ≥2200 | 2600 | 300 | 12.6-13.1 | 0.16 |
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