The process is basically the spraying of molten metal onto a surface to provide a coating. Material in wire form is melted in a flame (Oxy-Acetylene flame most common) & atomised using compressed air to form a fine spray. When the spray contacts the prepared surface material, the fine molten droplet rapidly solidify forming a coating.
|Heat Source||Oxy-Fuel Combustion|
|Flame Temperature (°C)||3000|
|Particle Velocity (m/sec)||< 300|
|Porosity (%)||10 to 15|
|Coating Adhesion (MPa)||14 to 21|