High velocity oxy-fuel coating(HVOF)

technologie_nastrikA mixture of oxygen and kerosene (HVOF liquid fuel), oxygen and propane/ethylene (HVOF gas fuel), or oxygen and a propane–propylene or propane-natural gas mix (HVAF) burns continuously. The material (powder) is forced under high pressure nitrogen through a convergent-divergent nozzle to the burner and is propelled at supersonic speed towards the surface that requires coating.

Spraying parameters:

  • Coating thickness: 0.10 to 0.35 (max. 2.0) mm
  • Porosity: 0.5%
  • Adhesion: ≥ 60 Mpa

Spraying materials:

  • Metals and metal alloys with low or intermediate melting points
  • Cermets
  • Ceramics