• en
  • de

High velocity oxygen fuel spraying (HVOF) is the further development of the flame spraying method for the production of extremely dense and highly adhesive metallic and carbide coatings.

A fuel gas/oxygen mixture is combusted under high pressure in the combustion chamber and then accelerated to supersonic velocity in a de Laval nozzle. The process temperature reaches up to 3.160 degree Celsius.

The powdery coating material is melted by the combustion gas jet and accelerated to velocities in excess of 600 m/sec.

Typical coating thicknesses vary from 0.1 to 0.5 millimetres.

Gas-fired systems also enable ceramic materials to be sprayed.

Fields of application::

  • Wear protection
  • Corrosion protection
  Direct contact