Wire Flame Spray Gun is the set of approaches in which is used an oxy-fuel flame to melt the wires. After melting the melted metals are then atomized with compressed air to create a spray stream that applies the coating on the surface being sprayed. A flame Spray gun is a uses for spraying both iron & non-iron material. Major applications are restoring worn-out components, conductivity and anti-corrosion coating.
The wire is fed into the front torch of flame spray through the air-driven turbine. Fuel gas like acetylene, LPG, Propane & oxygen is properly and safely mix in the siphon plug head assembly which provides a combustible heat source.
The spraying material in the wire form is fed continuously into a fuel gas-oxygen flame where it is melted by the heat of that combustion. And, Compressed air surrounds the flame and atomizes the molten tip of the wire. This speeds up the spray of molten particles towards the prepared work-piece surface. Wire flame spray is the flame best process coating. It allows for the application of aluminum, zinc, and zinc/aluminum alloy coatings using the flame spraying method. A schematic of a typical flame spray system .depicts a typical wire flame spray gun. The wire flame spray gun consists of a drive unit with a motor and drives rollers for feeding the wire and a gas head with valves, gas nozzle, and air cap that control air of the flame and atomization. Comparison with arc spraying, wire flame spraying is slower and more costly because of the high cost of the oxygen-fuel gas mixture compared with the cost of electricity. Flame spray systems are field-portable and it may be used to apply the quality type of coatings for corrosion protection.