Hvof

High velocity oxygen fuel coating hvof is one of the coating techniques which is widely used in industry because of its ease of operation low cost and efficient processing.

Hvof. As an essential feature of thermal spray coatings sprayed particles upon and after impact deform so as to interlock with the impact surface s profile. Hvof high velocity oxygen fuel the hvof process high velocity oxygen fuel process is best know for its use with applying carbides. Thermal spraying can provide thick coatings approx. Hvof spray systems operate on gas or liquid fuel.

Hvof is a method of propelling molten particles on to work surfaces for each coating. While it is necessary to transfer sufficient velocity to the particles to ensure high coating density and bond strength only enough thermal energy is absorbed by the powder particle to soften the metallic binder and ensure inner particle adhesion upon impact. The liquid fuel process applies corrosion and wear resistant coatings that are very thick and dense. Thickness range is 20 microns to several mm depending on the process and feedstock over a large area at high.

Thermal spray operators use the hvof process to apply tungsten carbide cobalt alloys and chrome carbide coatings. Hydroil provides hvof thermal spray coating services and specialises in hard chrome plating replacement technology that delivers remarkable results. Unicoatpro lf liquid fuel hvof spray system. Hvof high velocity oxygen fuel hvof has become the method of choice for hard chrome plating replacement hcp for both oem use and restoration or re build of worn components.

In addition hvof coatings can protect the underlying surface from the harsh environments such as high temperature corrosion and abrasion. Hvof is a thermal spray system utilizing the combustion of gases such as hydrogen or a liquid fuel such as ethanol or kerosene. The unique design of this gun allows it to produce particle velocities of 3 300 to 3 900 fps which is significantly higher than any other gaseous fueled hvof device on the market today. The feedstock coating precursor is heated by electrical plasma or arc or chemical means combustion flame.

Fuel and oxygen mix and atomize within the combustion area under conditions that monitor the correct combustion mode and pressure. Thermal spraying techniques are coating processes in which melted or heated materials are sprayed onto a surface. High velocity oxygen fuel hvof coating is a thermal spray coating process used to improve or restore a component s surface properties or dimensions thus extending equipment life by significantly increasing erosion and wear resistance and corrosion protection. Tafa model 5220 hp hvof gun the tafa model 5220 is a kerosene fueled hp hvof gun that is used to achieve extremely high coating densities.