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Combustion Powder Spray

Combustion Powder Spray

Combustion powder spray is suitable for maintenance, repair, restoration and abradable/clearance control applications of machine parts. It uses oxygen and fuel to melt pure metals, alloys, carbides, polymers and ceramic powders.

Process description

We continually feed the spray material in powder form into a fuel gas-oxygen flame where it is typically melted by the heat of combustion. A powder feed carrier gas transports the powder particles into the combustion flame. The mixed gasses entrain the melted particles onto the prepared workpiece surface where it rapidly solidifies to form the coating. 

Process basics

Heat source

Fuel gas and Oxygen

Material

Powder (Metals, Ceramics), Blends of Metals and Polymers

Flame temperature

Max. 3,100 °C

Particle velocity

Up to 50 m/s

Spray performance

35 – 150 g/min

Schematic diagram of a combustion powder process.

Key characteristics

  • Excellent for basic wear, corrosion resistance and abradable/clearance control applications
  • Coatings can be machined to final dimensions and finish

Typical applications

  • Crank shafts
  • Sucker rod couplings
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