Process Description
The Combustion Powder Flame Spray process uses a siphon plug system to mix fuel gas of acetylene, propane or hydrogen with oxygen in precise volumetric proportions to provide consistent operation and prevent the possibility of backfire.
Powder as the coating feedstock is continually fed into the ignited fuel gas-oxygen flame where it is melted by the heat of combustion, propelled towards the prepared workpiece surface and rapidly solidifies to form the coating.
A cap that feeds compressed air surrounds and appropriately shapes the flame.
The combustion powder process is similar to the combustion wire process, except that is has the advantage of using powder materials as the coating feedstock, which allows for a much wider range of coating material options. In addition, the use of powder allows for a greater degree of freedom for spray gun manipulation.