Carbide materials
Maximum reliability due to extreme wear resistance, excellent adhesion, and low porosity.
Thermal spray powders alloyed with carbides are used to increase wear resistance. The complex carbide parts combined with a ductile matrix cause extreme hardness and great wear resistance.
Tungsten carbide materials
Tungsten carbides spraying powders can be used at process temperatures below 500˚C. These coatings are characterized by their extreme wear resistance; By adding chromium,the corrosion resistance is significantly increased. This makes tungsten carbide coatingsparticularly suitable for the high demands of the steel, paper & pulp, oil, gas, andpetrochemical industries.
Chromium carbide materials
At process temperatures above 500˚C, tungsten carbide coatings cannot provide the required oxidation resistance. At higher process temperatures, up to 870˚C, chromium carbide-based coatings are more resistant to high-temperature corrosion. Combined with a binding material varying between 10 and 50 per cent, the combination of hardness and ductility is explicitly tailored to the application.
Combined powders
Coatings with a combination of both carbide materials in a highly alloyed matrix, for example, Inconel or Hastelloy, give the coating a higher resistance to corrosive and oxidizing environments, such as acids and alkalis. Combined coatings can be used at process temperatures up to 700˚C.
Examples
- Valve stems
- Alternative hard chrome (HRC – Hard Chrome Replacement)
- Plungers, Homogenizer plungers
- Pump shafts
- Axle bushes / Wear bushes
- Mechanical seals
- Hydraulic Piston Rods
- Rolling/rolling paper industry
