A NOVEL TECHNIQUE OF APPLYING CARBIDE COATING ON THE HYDRO TURBINE COMPONENTS OF ALL RATING BY HIGH VELOCITY OXY FUEL (HVOF) SPRAYING

摘要

A method of producing silt erosion and corrosion resistant coatings comprising the steps of supplying compressed oxygen to combustion chamber to produce a high spraying velocity and flame temperature, feeding a predetermined quantity of a carbide/metallic powder into the high temperature flame and deposition on the component to be coated.