Boiler and Turbine Coating for
Power Generation
Boiler tube erosion shielding, turbine shaft reclamation and hydro runner cavitation protection for coal, gas, hydro and captive power plants, where one avoided forced outage pays for the coating cell.
Components We Coat in Power Generation
Boiler water wall and economiser tube erosion shielding
Hydro turbine runner and guide vane cavitation protection
Generator and turbine shaft journal reclamation
Steam valve and seat erosion-resistant surfaces
ID and FD fan blade abrasion protection
Typical Outcome
Typical outcome: boiler tube panels coated inside the annual shutdown window, avoiding unplanned tube leak outages.
Coating Processes Used
Twin wire arc spray for in-situ boiler tube coating in the shutdown window
HVOF for cavitation and solid particle erosion faces
Wire flame spray (metallizing) for shaft build-up before grinding
Coating Materials Specified
Nickel chrome 80/20 for boiler tube fireside erosion
Inconel 625 for high-temperature corrosion
WC-Co-Cr for cavitation and silt erosion in hydro sets
13% chrome steel for shaft journal reclamation