HVOF – High Velocity Oxygen Fuel Thermal Spray Coating

BryCoat Thermal Spray Coating Processes HVOF-High Velocity Oxygen Fuel

  • Supersonic jet technology
  • Burns a mix of fuel, such as Hydrogen (H2), with Oxygen (O2)
  • Tail flame is accelerated through nozzle to supersonic velocity
  • Powder coating source material is injected into flame
  • Particles travel at supersonic velocity to substrate
  • Powder is heated to moderate temperatures in the flame
  • Lower thermal energy/higher kinetic energy compared to other types of thermal spray
  • Highest bond strength thermal spray process
  • Low oxidation of coating materials

Resulting Properties

  • Process of choice for high quality wear resistant coatings
  • Highest density thermal spray coatings
  • Outstanding adhesion
  • Extremely High Bond Strength
  • Uniform Coating
  • Excellent Wear Resistance (Carbides)
  • Excellent Corrosion Resistance
  • Low Application Temperature
  • Low Residual Stresses
  • Higher Impact Resistance
  • Neutral to Compressive Residual Stress (Greater thickness capability)
  • Less Chipping & Peeling vs. other Thermal Spray Processes

Detonation Gun, D-Gun*, Super D-Gun*

  • Coatings applied by Detonation Gun compare to coatings by HVOF process
  • Older process than HVOF
  • Is a high velocity coating process like HVOF
  • Uses discrete pulses (explosions) of oxygen-fuel gas mixtures, instead of a continuous coating jet, to melt and propel powdered materials onto the surface of the substrate
  • D-Gun* is a proprietary process (only one supplier available).
  • * The names D-Gun and Super D-Gun are trademarks of the process owner
  • BryCoat HVOF is an excellent alternative to D-Gun coatings!

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