Thermal Arc Spraying
A coating process in which two electrically conductive wires are melted in an electric arc and propelled onto the substrate surface via a gas jet. This serves for wear and corrosion protection of components.
In arc spraying, two wires are melted in an arc and the liquid material is finely atomized with compressed air or another gas and sprayed onto the surface. This creates an adherent layer that you can apply as wear or corrosion protection. It is important that the distance to the surface is right and that you choose the correct wire for the application. If the distance is too large, the material cools down too much and adhesion suffers. If the setting is wrong or the workpiece is dirty, you get pores or the layer peels off. Before spraying, the surface must be clean and roughened, otherwise nothing will stick. Also make sure the wire feed runs evenly, then the layer will also be even.