In the HVOF (High Velocity Oxygen Fuel) Thermal Spray Process an oxygen-fuel mixture is used. In the gas-fueled systems, propylene, propane, hydrogen or natural gas can be used as the fuel. The fuel of the liquid-fuel systems is kerosen.

The HVOF Spray Gun is designed in such a way that it propels molten thermal powder particles with very high velocity. These particles create high-quality coating by impact to the workpiece with a more than 700 m/s velocity.

HVOF is an ideal process for carbide cermet type coatings. (tungsten carbide-cobalt, chrome carbide-nickel, tungsten carbide-chrome carbide-metal alloy)

• High Bond Strength
• High Density , very low porosity
• Extremely high hardness
• Excellent corrosion resistance
• Excellent resistance to wear by abrasion,erosion or fretting
• Higher coating thickness
• Homogenous sprayed texture , smooth surface
• Fine surface finishes ( can be machined, ground, lapped, honed or super finished)
• Improved toughness
• Low oxide and impurities

Wire-drawing capstans, fan blades, hydraulic valves, pump hausing, pump shafts, plungers, shaft sleeves, hydraulic rods, bearing journals, conveyor screws, plastic extruders, mixing blades, normalising furnace rolls, cooler rolls, printing rolls, stabilizing rolls, zink pot rolls, repairs worn or damaged bearing surfaces.