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COMPANY SPOTLIGHT – TECVAC


A major European maintenance overhaul and repair contractor has recorded over ten thousand flight hours in on-wing trials comparing an engine with a Nitron Flight treated compressor


section with an untreated reference engine.


This demon- strated a


potential to


recover the cost of treatment in around seven


months and go on to produce savings of


$156,000 per


engine over a typical five year, 25,000 flight hours (FH), cycle.


Offshore Energy Production


In offshore oil production problems of corrosion, erosion, fouling and wear are common in pipework, pumps, valves and other hollow process vessels. Conventional metal coatings are often ineffective and difficult to apply to internal surfaces consistently, but a new process, InnerArmor, overcomes these problems.


Available from Tecvac, in conjuction with with technical partners Sub-One Technology of California, InnerArmor uses plasma enhanced chemical vapour deposition (PECVD) to apply even, pin- hole free, thin films of highly resistive diamond like carbon (DLC), titanium carbide or other resilient coatings.


Providing an effective barrier on mild steel and other common metals, InnerArmor eliminates the need to use costly exotic metals or alloys. Typical coatings vary from 30 to 80 microns. They can be optimised for hardness, wear and erosion resistance or to tolerate acids, salts, hydrogen sulphide or fluids with abrasive solids such as sand and grit.


Motorsport and Medical Applications


There are many other applications for advanced micro coatings. Motorsport presents the most extreme challenges for automotive engineers. The performance of components such as overhead cam shafts, conventionally hardened by heat treatment, can be further enhanced.


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Components can be coated with materials that both harden the surface to make it more resistant to erosion and which are naturally lubricious. This is achieved using Diamolith a Tecvac diamond like coating that combines different carbon structures to optimise the properties of diamond and graphite to give a naturally resistive and lubricious surface coating.


In medical appli- cations, such as the prostheses used in hip replacements there has been much controversy about contaminants entering the tissues of the patient due to joint erosion arising from metal on metal contact. Again Tecvac can provide coatings that overcome this problem and produce joints that ensure freedom of movement without metal erosion or further risk to the patient.


www.wallworkht.com SURFACE WORLD may 2013 follow us on Twitter @surfaceworldmag


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