HVOF Coating
High pressure and flows of oxygen and air craft grade fuel gas are ignited and create a high velocity stream. Powder material is injected in the high velocity stream where the material is only partially melted then propels at a high velocity to the prepared work surface. Upon impact, through kinetic energy, the material is then fully melted forming a coating. HVOF coatings are applied in compression instead of containing residual stress. This provides the best wear resistance.
Energy Source & Consumption
Spraying Factors
Oxygen & Fuel Gas, 700 to 2500 Scfh
Spray Rates
Deposit Efficiencies
Deposit Per Pass
Particle Velocities
Oxygen & Fuel Gas, 700 to 2500 Scfh
30% to 50%
.0005” to .001”
3500 to 3900 fps
Spraying Factors
Materials
Coating Finishing Processes
Hardness Range of Materials/Coatings
Typical Oxide Content
Typical Porosity Levels
Erosion Resistance Rating
Abrasive Wear Resistance Rating
Thermal Cycling & Thermal Shock Capabilities
Co-efficient of Thermal Expansion & Contraction
Corrosion/Oxidation Resistance Rating
Tungsten Carbide, Chromium Carbide
Grind
Rc 65-78
Less Than 1%
Less Than 1%
Excellent
Excellent
Fair
Fair to Excellent
Good
NAVIGATION
ABOUT US
Metallic Bonds, Ltd.
For more than 30 years, Metallic Bonds, Ltd. has been a leader in quality Thermal Spray Coating Services, Brush Plating, and Machine Component Repair.
Toll Free: 1-800-236-3307
Phone: 608-365-9299
1929 Royce Ave
Beloit, Wisconsin 53511
United States
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