HVOF Spray Systems
HVOF (High – Velocity Oxy – Fuel) is a thermal spray technology. It utilizes the combustion of oxygen and fuel (such as propane, propylene, hydrogen, etc.) to generate a high-temperature and high-velocity flame jet. The fuel and oxygen are mixed and combusted in a special spray gun, and the resulting flame jet can reach supersonic speeds.
APT spraying room provides customers with high-quality and monitoring coating, which can be applied in TBC coating, valve plate, textile, aviation and other fields.
Typical HVOF coating provided by APT
- Tungsten carbide coating
- Chromium carbide coating
- Nickel & Cobalt based alloy
- T800
- Contact us for customization coating
Praxair JP8000 HVOF systems
Manufacture by Praxair S.T company，PLC closed-loop control console
TAFA 5220 Standard spray gun
Using Kerosene as fuel to obtain higher pressure and speed, which makes the coating denser and harder
ABB Robot
Fully automated ABB robotics, HVOF can be applied in a uniform, precision manner to spray ; which can otherwise be costly, have long lead times or are obsolete.
Large size gantry turntable
Specially designed for super large workpieces, with spraying length up to 10m
Multifunctional spraying workshop
Equipped with exhaust system, turntable, manipulator, lighting system and measuring system
AME TESTING LABS
APT independent testing laboratory, monitor coating quality and improve process at any time
Know more about the HVOF process technology
HVOF is a process using kerosene or hydrogen fuel mixed with oxygen ,and using nitrogen as a carrier to feed the powdered form coating material through the gun.
The fuel is adequately mixed with oxygen inside the gun, and ignited outside the gun.The coating material is surrounded by the ignited gas ,and being uniform heated and turning soften under the high temperature flame(approx. 2800°C) when it exit the gun ,and coating onto the sprayed surface under supersonic speed(400-800m/s).
Coating Features:
- High Density
- Optimum Hardness
- Smooth Surface
- High bond Strength
- Excellent Wear resistance
- Reduced Oxide content than plasma coating
Typical Applications:
- Wear resistance Sliding,Abrasive,Erosion,etc.
- Chemical resitance
- High Temperature applications
- Wear resistance Sliding,Abrasive,Erosion,etc.
- Chemical resitance
- High Temperature applications
APT provide specialist HVOF coating services to engineers and manufacturers across China. Thanks to our experience and craftsmanship,we have great confidence in our products,which is proven to extend component life-span beyond its original specification
Main performance
- Wear resistance sliding,abrasive,erosion,etc.
- Chemical resistance
- High temperature application
Typical applications
Chromium Carbide coating
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NiCrBSiFe(NI60) coating
• Self-fluxing type alloy • Good corrosion and wear properties • May be blended with a carbide and applied via spray/fuse process • Serviceable up to 1500°F (816°C)
Tungsten Carbide coating
• Excellent low-temperature wear properties • Dense, hard coating with marginal oxidation and corrosion resistance • Useful up to 900°F (482°C)
APT Creping blade
The wrinkling blade developed by apt is sprayed with tungsten carbide coating on the blade, which greatly improves the wear resistance of the blade and thus greatly improves the service life.
