Metal Spraying Hard Facing and Surface Coating for Wear Resistance and Repair

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Ceramic Coatings 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 Coatings Provide Protection from:


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.


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.

Chromium and Alumina Oxide coatings are recommended for resistance to wear by abrasive grains, hard surfaces, particle erosion and cavitation, at all temperatures below 1000°F (540°C).

These coatings have excellent self-mating and anti-galling properties.

Coatings of this material are insoluble in acids, alkalis and alcohol and offer protection in corrosive chemical environments in temperatures up to 350-400°F (175-200°C)


Chromium and Alumina Oxide coatings are being successfully used in petro-chemical industry applications :

  • Pump impellers

  • Pump sleeves

  • Reciprocating pump compressor rods

  • Centrifugal pump seals

  •  Wear and casing rings


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