Power generation and thermal spray

Energy sectors such as hydroelectric and wind energy often face erosion, cavitation, abrasion and corrosion problems. Through Metallitech’s recognized expertise (metallizing service and thermal spray coating service), we have the capability to solve those issues, thus insuring a significant increase in life expectancy of your equipment.

Thermal spray for:

  • Thrust bearing
  • Turbine Guide bearing
  • Turbine shafts
  • Thrust bearng pads
  • Breaking device
  • Check valve
  • Valve wedge
  • Turbine rotor
  • Burners
  • Oven nozzle
  • Combustion chamber walls
  • And more

CASE STUDY

Space reduction between a turbine and a wheel mantle

Various challenges await the hydroelectric industry. Risks caused by corrosion, erosion and general wear are everywhere. Metallitech collaborates with industry pioniers, in order to reduce or avoid those problems and contribute to increasing the components longevity.

Metalic coating of a turbine

In operation since 1999, the Chaudière Hydroelectric Power Plant produces 116 651 MWh per year. Recently, the Metallitech team was commissioned to rebuild to specifications a turbine and its housing. In order to do this, a metallic coating was applied on the whole of the Kaplan Turbine. The turbine’s five blades were reloaded by welding at the power plant.

Industrial coating for wheel mantles

Next, at Metallitech, another type of coating was applied inside a wheel mantle. The Chaudiere power station can now benefit from a high quality coating for its installations, and a better resistance to corrosion, erosion and wear. The fruit of this work allowed Innergex to regain the turbine efficiency that was lost because of wear.

The Chaudière Dam is:

ENERGY : HYDROELECTRICITY
STATE : IN OPERATION
END OF CAE : 2019
INNERGEX’S PARTICIPATION (%) : 100.0
POWER OUTPUT – GROSS (MW) : 24.0
POWER OUTPUT – NET (MW) : 24.0

OTHER ACHIEVEMENTS

  • polaroid

    Main pipe

  • polaroid

    Pelton wheel

  • polaroid

    Babbitt coating on trust pad

  • polaroid

    Wind turbine part coated with zinc-aluminum for corrosion protection

  • polaroid

    Tungsten carbide on sealing journals

OUR PROCESSES

plasma spray / pistolet de projection thermique par plasma
metallizing by wire arc / Métallisation par arc
metallizing by flame spray / Métallisation par projection thermique par flamme
HVOF supersonic flame supplies / HVOF projection à la flamme supersonique
HVAF High Velocity Air Fuel / HVAF Haute vitesse aire-carburant
PTA metallizing by plasma transferred arc / PTA Métallisation par arc transféré par plasma
spray welding

COATINGS

– Zinc-aluminium

– Chromium Oxide

– Chromium Carbide

– Tungsten Carbide

And more… 

Take advantage of our know-how to protect your equipment against wear!