High velocity oxygen fuel Gun
High Velocity Oxygen Fuel Spray (HVOF) The high velocity oxygen fuel spray HVOF process is a relatively recent addition to the family of thermal spray processes. HVOF uses a supersonic jet, the speed of particle impact on the substrate is much higher, resulting in improved coating characteristics. The mechanism differs from flame spraying by an expansion of the jet at the exit of the gun. Fuel gases of propane, propylene, acetylene, hydrogen and natural gas can be used, as well as liquid fuels such as kerosene.
Learn more about the Thermal Spray and the HVOF process at Bexxon Global Pte Ltd in Singapore. Bexxon Global has more than 60 years employee experience with Thermal Spray
Powder feeder twin type.
High velocity oxygen fuel coatings produced feature:
Industries that typically use thermal spray HVOF high velocity oxygen fuel include:
HVOF Thermal Spray Key characteristics
Standard package of HVOF system includes
Thermal Spray Manual Flow tube controller
HVOF High Velocity Oxygen Fuel Thermal Spray system
What is HVOF spray?
HVOF is a High Velocity Oxygen Fuel. The HVOF is a combustion process. Using Hydrogen, Propane, Natural Gas or a liquid fuel such as kerosene.
The combustion process generates a very high velocity gas stream. The gas stream propels the powder particles at near supersonic speeds.
HVOF key benefits are the extremely dense and low oxide coatings. Low oxides: Since the powder particles spend less time in the flame, and lower flame temperature 3,000 °C compared with plasma spray APS. HVAF (high velocity air fuel) has an even lower flame temperature than HVOF, and produces coatings that are even less oxidized, and more ductile.
As well as producing excellent bond strength, some HVOF coatings can be sprayed very thick due to the exceptionally high velocities producing coatings in compression instead of tension.
Learn more about the latest process of HVAF, high velocity air fuel, and HVAF C combining both high velocity air fuel, and high velocity oxygen fuel process in one system. Click here to learn more about high velocity oxygen fuel
Portable for field or just moving around your job shop
|Chiller||Temperature, and pressure of cooling water||Power||3ph /380V /5 kW|
|Cooling capacity||15 kW|
|Rate of Flow||15L / min|
|Output Pressure||0.2 to 0.4 MPa|
|Temperature Range||5-40 C|
|Regulators for propane, oxygen , carrier gas hose, cooling water hose|
|Service||installation and commissioning|
Manual Gas Control
Easy to use
Perfect for on-site work
|Electrical powder||220V / 1KW|
|Control mode||Manual Control|
|Oxygen pressure / flow||1.2 MPa / 310 L / minute|
|Propane pressure / flow||0.62 MPa / 88 L / minute|
|Air Pressure / flowq||0.72 MPa / 440 L / minute|
|Bexxon ZB 2000 HVOF Gun||Fuel gas||Propane, Propylene|
|Cooling water||0.2 to 0.4 MPa|
|Rated power||110 KW|
|Flame Speed||2,150 meter per second|
|Flame Temperature||2,750 C|
|Particle Speed||400 to 650 meter per second|
|Powder Mesh size||10-38 micron|
|Porosity||less than 1 %|
|Bond Strenght||Greater than 65MPa|
Twin Hopper powder feeder,
Very high precision, reproducible powder
flow during long hours of operation,
2 hoppers are excellent for 2 layer coatings
Two (2) station feed,
|Powder size||5-200 micron|
Carrier Gas (N2 or Ar)
|0.75 - 1.0 MPa|
|Feed Rate||15-150 gram / minute|
|Feed Accuracy||better than 1%|