AK-ID HVAF Spray Gun
Kermetico developed the AK-ID gun for robustness in the harshest environment, spraying internal diameters as small as 3.15 inches (80mm) to a length of up to 5 feet (1,500 mm) deep. Low power (just 30 kW) prevents overheating of the ID gun and work piece, and the efficient design of the gun allows for the effective spraying of Hastelloy-type and tungsten carbide coatings onto internal surfaces.
The AK-ID HVAF gun is an effective instrument for spraying tungsten carbide and Hastelloy-type coatings. The system is ideal for lining inside diameters of pipes, tubes, barrels, and cylinder bores which can be effectively rotated.
The gun provides uniform non-permeable wear and corrosion resistant cermet coatings with a spray rate of 5 kg or 11 lbs. per hour, achieving a tungsten carbide coating hardness of 950 HV300 in internal diameters less than 4” and over 1,100 HV300 hardness in 4.0” (100 mm) and larger internal diameters.
AK-ID HVAF Gun - Features
- Axial powder injection through the combustion chamber provides enough time to heat the powder in size-restricted areas of small ID parts.
- We spray very fine powder particles that are easier to heat and accelerate.
- The lower HVAF process temperature prevents overheating of such fine particles and the sprayed coating layer.
- These features have allowed us to create the smallest internal diameter guns in the world, working inside tubes as long as needed to deposit high-quality tungsten carbide and metal alloy coatings.
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