In copper spray metalizing if oxygen and gases are used in metalizing it is called the copper flame spray gun. In this process, oxygen is used with acetylene and compressed air to melt the coating material. The Copper has provides a thick layer of coating on the component. Compressed air is used to atomized the coating material.
The copper spray metalizing is used for a thermal spray of copper over the surface of the substrate. After the sandblasting process, The copper coating gun is used for coating. Before the copper spray metalizing with the copper thermal spray gun surface finishing and it is done with the sandblasting machine.
Thermal spraying is a group of processes wherein a feedstock material is heated and running as individual particles or droplets onto a surface. The thermal spray gun is generating the necessary heat by using combustible gases or an electric arc. so the materials are heated, they are changed to a plastic or molten state and are enclosed and accelerated by a compressed gas stream to the substrate. The particles strike the substrate, flatten, and form thin platelets that conform and adhere to the uniqueness of the prepared substrate and to each other.
As the sprayed particles encroach upon the surface, they cool and build-up, splat by splat into a laminar structure and it is forming the thermal spray coating. as the figure shows illustrate a typical coating cross-section of the laminar structure of oxides and inclusions. The coating that will not be formed into homogenous and typically contains a certain degree of porosity and in the case of sprayed metals. Feedstock material may be any substance that can be melted, including metals, metallic compounds, cement, oxides, glasses, and polymers.