THE EVOLUTION OF HIGH VELOCITY THERMAL SPRAY:From Shop Applications to Mission Critical Equipment Protection

摘要

Back in the 1995,high velocity thermal spray was an established technology in a highly controlled shop application environment.It was used for specialised applications in aircraft components,valves and other similar equipment.Users of the technology started to ask whether it could be effectively applied in the field,to existing fixed assets in-situ.Field technology was also present at the time;however,it was a different class of technology.Twin wire arc spray(TWAS)and thermal spray aluminium(TSA)are both low velocity thermal spray technologies that are not able to produce reliable coatings to serve in critical erosion/corrosion environments in fixed assets such as process vessels,towers,columns,or power boilers.The existing high velocity thermal spray equipment and technology could not be taken into the field effectively,or economically.