Kermetico HVAF AK5-ID Compact System for Abrasion Resistant Coatings of Internal Surfaces
Wear resistant internal surface coatings provide an extremely efficient way to protect internal surfaces of piping like bends, elbows or nozzles. WCCoCr 86-10-4 is one of the best wear resistant coatings known. But it is quite rarely used for piping because just a couple of years ago engineers were limited with a minimal diameter of 400 mm (16”) in tungsten carbide coating applications.
The situation has changed with the development of internal diameter spray guns, like the AK-ID. They can spray into small diameters starting from 80 mm (3.15") up to 1,500 mm (5’) deep and already sprayed many different parts with it. The AK-ID sprays 1,100 HV coatings with less than 1% porosity in really tight diameters and the spray rate of 60-80 gram per minute looks like an achievement for the people accustomed to older technologies. But Kermetico wanted more.
They wanted to spray bulk-like tungsten carbide coatings, harder than 1,200 HV0.3 onto internal surfaces. This was not achieved it for an 80 millimetre ID. Carbide needs more distance to spray well. So, our new AK5-ID starts spraying internal diameters from 200 mm (8”) and it is not limited in depth.
