TLSImproving surfaces
HomeContact

  Projection thermique
    What is thermal spraying?

Thermal spraying is a process by which a coating is deposited onto a surface to optimise its characteristics and to protect against wear, corrosion or erosion.
The thermal or flame spray process was invented in Switzerland in 1912 and today, is used in all industries, including the aerospace, medical, machinery, heavy-duty steel and primary metals.


How does it function?

In the thermal spray process, fine particles of the coating material are injected into a gas stream, which is heated either electrically or by combustion and deposited at high velocity onto a substrate, creating a dense, homogeneous coating.

There are a number of processes, which have been developed and the most commonly known are: Plasma, HVOF (High Velocity Oxy-Fuel), VPS (Vacuum Plasma Spraying), arc spray, flame spray and cold spray.

The relatively low heat transfer from the sprayed particles to the substrate causes no deformation, change of structure or damage to the coated part.

Coating materials such as metals, alloys, carbides, cermets and oxides are used to suit all types of surface requirements whether for wear, corrosion, erosion protection, electrical insulation or low-friction characteristics.

Projection thermique
Top