The copper spray metalizing gun is utilized for a thermal spray of copper over the surface of the substrate. The copper gun is employed for coating after the sandblasting process. Before the copper spray metalizing with the copper thermal spray gun surface finishing is completed with the sandblasting machine.
Copper wire or powder coating is done to avoid the risks of corrosion and oxidation from the surface of the component. Coating across the surface of the component also provides wear resistance.
Copper spray gun provides a thick layer of coating over the surface. coating with copper wire and powder is quite an expensive process.
In copper spray, metalizing rollers are used to pass the coating wire. These rollers are a push and pull the wire in the copper spray gun. In copper spray guns for melting the copper wire both flame and electric arc processes are applied.
In the electric arc, process metal is melted or semi melts by the arc. The electric arc is formed between the anode and cathode for melting the wire or powder. In this type of spray gun to push also pull the wire compressed air and motor are used. When compressed air is utilized it is called air drive and when the motor is applied to push and pull the wire it is called electric drive.
In copper spray metalizing if oxygen & gases are used it is called the copper flame spray gun. In this method, oxygen is applied with acetylene and compressed air to melt the coating material. Copper provides a thick layer of coating on the component. Compressed air is utilized to atomize the coating material.
Applications
- Heat conductive coating in electronic packaging machines
- Brazing copper layers over aluminum heat drains
- Powerful electrical conductivity layers on annealing rolls in steelworks
- Restoration of parts with a coating over the surface.
