HIGH TEMPERATURE PLASMA SPRAYING
In plasma spraying the sprayed material (as a powder) is fired into the plasma jet where it melts and is propelled at high speed onto the component surface where it rapidly cools and forms a coating.
The plasma spraying process is classed as a cold process and because of this the amount of damage and distortion caused on the component is minimised. It also means that a huge range of substrates can be improved using this process.
Some of the coatings are as follows:-
- Ceramic and Cermet (Metal/Ceramic mix) coatings including: Chrome oxide, Aluminium oxide, Titanium oxide, Thermal barrier coatings such as Zirconium oxide
- Metal Chrome coatings including: Chrome carbide, Tungsten carbide, Alloyed steels
The great advantage of the plasma spray coating technique is its ability to apply a wide range of coatings, from metals to refractory ceramics, on all sizes of components offering:
- corrosion protection
- wear resistance
- heat and oxidation resistance
- electrical resistivity and conductivity
- temperature management