Plasma Spray Coating

plasma spray coating
An inert gas passes through an arc creating a plasma plume. Powder is injected into the plasma plume, which melts and propels the material onto a prepared work surface to form a coating. The plasma plume reaches temperatures of 15,000° F to more than 30,000° F however, our processing technique ensures the heat does not transfer to the part and will not cause part distortion, warping, cracking, or any changes to the base metals. The plasma process allows for the use of a wide range of coating materials: ceramics, refractory metals, alloy materials and materials containing carbides.

Energy Source & Consumption

Electricity 40 kW – 80kW Inert gases 150 scfh

Spraying Factors

Spray Rates5 to 20 lbs/hour
Deposit Efficiencies65%
Deposit Per Pass.0005” to .002”
Particle Velocities1200 fps

Coating Properties

MaterialsCeramics, Refractory Metals, Alloy Materials (Containing Carbides)
Coating Finishing ProcessesMachine, Mill or Grind
Hardness Range of Materials/CoatingsRc 62-75
Typical Oxide Content2% to 5%
Typical Porosity Levels2% to 5%
Erosion Resistance RatingGood
Abrasive Wear Resistance RatingGood
Thermal Cycling & Thermal Shock CapabilitiesExcellent
Co-efficient of Thermal Expansion & ContractionExcellent
Corrosion/Oxidation Resistance RatingExcellent