DLC coatings are often applied in automotive engines to achieve friction reduction on engine components (tribology). The black colour of the DLC coating makes it popular as a decorative coating on e.g. watches. In tool applications DLC coatings are advantageous because of their low coefficient of friction and non-sticking properties. DLC coatings are superior for the machining of cast and wrought aluminium and coating of plastic injection moulds
Diamond like carbon(DLC) coating Technology
Unique Diamond-Like Carbon (DLC) coatings developed by Sulzer include the triple-layered CAVIDUR, DYLYN, and the Tungsten-Containing Hydrocarbon CARBON WCH. Our high-tech coatings offer excellent wear protection, low frictional coefficients, and very smooth surfaces.
The amorphous CAVIDUR coatings are especially suited for racing and other high‑performance engine applications. It is deposited by a combination of PVD and PACVD processes. To guarantee best quality and performance, we perform all CAVIDUR coatings in a clean environment. The coating temperature range is 180 – 350 °C.
We can provide a range of different CAVIDUR coatings to match the differing requirements for various components in a racing engine’s powertrain. To help you evaluate the benefits, we can conduct a trial by applying CAVIDUR coatings to your existing parts.
For the past twenty years, professional motorsport teams in F1, NASCAR, WRC, DTM and F3 have trusted our CAVIDUR coatings to deliver the performance they require. Motorcycle components can also benefit from the advantages of this treatment.
DYLYN Coating description
Plasma Assisted Chemical Vapor Deposition (PACVD) is well-established for DLC layer deposition. The process activates chemical reactions through plasma excitation and ionization.
We frequently apply the amorphous DYLYN coatings to parts and components for the engineering, automotive, plastics processing, and semiconductor industries. To guarantee best quality and performance, we perform DYLYN coatings in a clean environment. The coating temperature range is 180 – 220 °C.
To meet the growing demand for coating treatments, we have streamlined the complete coating process of your parts between our system manufacturing and coating departments. Our handling expertise for all kind of parts complete the performance portfolio.
The DLC coating CARBON WCH provides a low coefficient of friction and strong wear protection because it is highly ductile. Used in many industries, this coating has diverse applications in automotive and general machining.
This amorphous carbon coating combines a very low coefficient of friction, low tendency to adhesion, and excellent wear resistance. With these features, CARBON WCH is ideally suited to protect components and tools that are subjected to much tribological wear or tribo‑oxidation.
The effect of CARBON WCH relies on several correlated mechanisms related to the coating’s nanostructure. While running dry, the coating is transferred from the coated component to the opposite uncoated component, thus smoothing the two surfaces. During the coating process, the temperature is maintained at about 200 °C to enable the coating of hardened steel.
To meet the growing demand for coating treatments, we have streamlined the complete coating process of your parts through close cooperation between our system manufacturing and coating departments. Our handling expertise for all kind of parts completes the performance portfolio.
Coating thickness is adjustable
Advantages:
|
Coating |
CARBON WCH |
CARBON WCHmod |
|
color |
anthracite |
black |
|
typical coating thickness |
1 – 5 μm |
1 – 5 μm |
|
Hardness |
1,000 – 1,200 HV |
1,200 – 1,500 HV |
|
Coefficient of friction (dry) |
0.15 |
0.15 |
Advantage:
|
