Hybrid HVAF

The Hybrid HVAF is a thermal spray coating process that combines the benefits of both HVOF (High-Velocity Oxygen Fuel) and HVAF (High-Velocity Air Fuel) processes. It is a refined new coating technology that is designed to address some of the limitations of these two processes.

In Hybrid HVAF, the coating material is fed into a combustion chamber along with both oxygen, and compressed air and with hydrogen as a secondary fuel. The mixture of oxygen and compressed air creates a high-velocity flame that accelerates the coating particles to high speeds. The high-velocity flame and the presence of oxygen enable the coating particles to achieve a high degree of melting and densification, similar to HVOF. At the same time, the use of compressed air reduces the formation of oxides, resulting in coatings with low porosity and high bond strength, similar to HVAF.

The Hybrid HVAF process produces coatings with high density, low porosity, and high bond strength, making it ideal for applications that require high wear resistance and corrosion protection. It also has the advantage of being a more flexible process, as the coating properties can be adjusted by varying the mixture of oxygen, hydrogen and compressed air.