High Velocity Oxygen Fuel (HVOF)

Product Details

(Click to enlarge image) The High Velocity Oxygen Fuel (HVOF) process produces durable metal, carbide, and a multitude of specialty coatings. A complete line of powders is available, which are specifically engineered for application with the HVOF system. This technology can be utilized in a range of applications leveraging the ultra-dense HVOF coating properties and the resulting wear-resistance.

HVOF combustion spraying deposits coatings with higher density, lower oxide content and better bond strength than similar coatings applied with flame, wire-arc, or plasma spray processes. These characteristics make HVOF the process of choice for applying carbide coatings for: aerospace applications, rotating shafts in pumps and compressors, valves, seals, paper/pulp rollers and corrosion/wear resistance.

HVOF coatings are typically denser and adhere better than plasma sprayed coatings. Wear resistant coatings such as WC/Co typically display bond strengths exceeding 83 MPa (12,000 lb/in.2), “as sprayed” densities greater than 99% and microhardness of 1,000 to 1250 Hv300.

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