Anti-corrosive coating for metallic workpieces, especially for fine mechanical precision parts

摘要

In order to obtain anti-corrosive coatings functioning reliably over prolonged periods in the form of extremely thin protective coatings which do not affect the geometry of the workpiece, a conventional vapour deposition process is employed to apply a coating of low-molecular weight trifluorinated silicon compounds to the workpiece. The coating preferably has a thickness of approximately 2-10 nm and after the vapour deposition process is crosslinked by means of UV irradiation. The coating, which does not incorporate any water, largely prevents demixing and enrichment processes on the workpiece surface.