BEYOND
SUB-ONE TECHNOLOGY
Figure 3. A completion valve with internally
coated surfaces.
mond-like carbon films on the insides of
objects (Figure 3). As this description
implies, the process does not involve
putting a part in a vacuum chamber and
spraying or bombarding it with the
material. Instead, says Rosenblum, “we
… create a chamber within the part
where we create a vacuum. We then
apply the process so that it deposits the
coating onto the internal surface.”
What that allows the company to do is
to support a variety of components formerly very difficult to coat because the
line of sight was not good. This is generally done while the valve is being manufactured—parts are sent for processing,
which the company does, “and they [the
valve manufacturer] would then complete the manufacturing process for the
component,” Rosenblum explains.
A LOOK AT THE FUTURE
Technology seldom stands still, and
valve coatings are no exception. An
interesting development at the Fraun-
hofer Institute for Manufacturing Engineering and Automation and the University of Duisburg-Essen was reported
recently in an article in MIT’s
Technology Review. The article explains that
researchers are developing a way to
electroplate metals containing liquid-filled nanoparticles. The hope is that
these particles could be filled with liquid
polymers or other materials that would
be released if the plating was cracked or
scratched, effectively sealing the crack
and preventing corrosion.
This development and others like it
ensure the valves of the future will have
even more protection than those in
years past. VM
PETER CLEAVELAND is a contributing editor to
ValveMagazine.Re ach him at pcleaveland@earthlink.net.
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