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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