Comparison of Operating Characteristics forGas and Liquid Fuel HVOF Torches

摘要

Gas and Liquid fuel HVOF thermal spray torches have beencommercially available for the past 20 years. These torcheshave different fundamental operating characteristics, such asgas flows, exit gas velocities, and thermal efficiencies. Thispaper will examine the fundamental operating and designcharacteristics of the Diamond Jet, WokaJet, JP5000, andWokaStar HVOF torches. Results for total heat input to thetorch, thermal efficiency, and design conditions are presented.