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PVD optimised components in practical use
The solution of wear problems affecting aircraft components begins with the exact analysis of mating surfaces, including all the participating ambient influences. This provides insight into the frictional and wear mechanisms that have occurred and caused the failure of a component. Within the portfolio of BALINIT® hard coatings with various properties, there is often one treatment of the component surface that provides the most efficient solution.
To enhance comfort of passengers, air conditioning systems adjust the intake air to breathable pressure, temperature, flow and humidity levels. Under these circumstances, valves that control the outside air inlet can be subject to corrosion and tribo-oxidation (fretting corrosion) of the valve lifter. Coating the high-alloy steel with BALINIT® CNI (CrN) or BALINIT® A (TiN) reduces the coefficient of friction and significantly improves corrosion protection. Airbus, a Oerlikon Balzers customer, values the precise control function of the valves and their prolonged fitness for function as compared to uncoated components.
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