Thermal Spray in Petroleum and Chemical Industries
The main problem in the petroleum and chemical industry is to prevent corrosion and wear, all forms of wear, especially those linked to corrosion arising at low, intermediate, and high temperatures. Thus HVOF spraying, that can be used on-site, is extensively used against corrosion and abrasive and erosive wear mainly with carbide-based cermets. Of course for the protection of external steel structures, pipes, tanks etc. Al, Zn, or Zn–Al wire arc or flame sprayed are used, as well as polymers sprayed by flame, HVOF, plasma according to the polymer melting temperature. For the oil, gas, and petrochemical industries, the following components are coated using thermal spray technologies:
Applications of Thermal Sprayed Coatings:
- Mud drill rotors
- Pump impellers
- Plunger
- Turbine Rotor shaft of centrifugal compressor/pump
- Turbine Pump shafts
- Boiler tube
- Thermo-well
- Mixing screw
- Mandrels
- Actuator shafts and housings
- Housings and valves
- Valve gates and seats
- Ball valve with large diameter
- Progressive cavity mud motor rotors
- Rock drill bits
- Riser tensioner rods
- Impeller/blade drilling and production risers
- Sub-sea piping
- Wellhead connectors
- Fasteners
- Compressor rods
- Mechanical seals
- Pump impellers
- Tank linings
- External pipe coatings
- Structural steel coating