Verfahren zur korrosionsfesten Beschichtung von Metallsubstraten mittels Plasmapolymerisation

NOVELTY - The production method involves mechanically, chemically or electrochemically polishing the substrate, and subjecting it to a plasma at less than 200 deg. C and 10-5 bar, activating the surface in a reducing plasma, and depositing the plasma polymers from a plasma containing a hydrocarbon or organosilicon compound optionally containing oxygen, nitrogen or sulfur. USE - On an aluminum heat exchanger, especially in the form of finned tubes. ADVANTAGE - Provides improved corrosion resistance.