Customer Challenge:
Wear & Lifetime
Oerlikon Solution:
Facilitating a smooth running-in process and preventing sticking.
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Piston Rings
| Solution | Coating material | Coating technology | Coating hardness HIT [GPa] | Coefficient of friction (dry) vs. steel | Max. service temp. [°C] | Process temperature [°C] | |
|---|---|---|---|---|---|---|---|
| CrN | Sputter | 18 +/-3 | ~0.5 | 700 | < 250 | ||
| ta-C | Arc | > 40 | 0.1 - 0.2 | 450 | - | ||
| a-C:H:W / a-C:H | PVD / PACVD | ~15-25 | 0.1 - 0.2 | 300 | < 250 |
|
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