The application of Chromium and Alumina Oxides (Ceramics) by either Plasma or Oxy/Gas techniques protects components from a range of wear inducing factors.
This process is particularly effective in severe operating environments such as those encountered in the Petrochemical Industry.
CERAMIC COATING PROVIDE PROTECTION FROM: ABRASION
Stray abrasive particles, caught between mating surfaces cannot gouge a hard ceramic coating.
Marginal lubrication is countered by the low friction coefficient of ceramic coatings, also the minute surface pores hold oil and therefore act as self-lubricating reservoirs. Galling
Particle pull-out, caused by spot welding of mating surfaces is prevented by the anti-galling properties of ceramic coatings.
Unlike metals, ceramics do not oxidize due to heat or moisture, therefore there are no wear-causing oxides to wipe away in service.
Abrasive solids propelled by moving liquids or gases do not erode hard tough ceramic coatings.
Applications Chromium and Alumina Oxide coatings are being successfully used in petro-chemical industry applications :
Reciprocating pump compressor rods
Centrifugal pump seals
Wear and casing rings