The metal surface often has grease, oil and other organic matter and oxide layer, in sputtering, painting, bonding, welding, brazing and PVD, CVD coating before, if the requirements are relatively high, if you want to get better results, it is necessary to use plasma treatment to get clean and no oxide layer surface.
Usually, if you want metal materials to achieve a certain welding quality, you can clean the weld before welding, such as using artificial cotton cloth to wipe and cleaning agents, but often can not meet the requirements of ideal welding effect or environmental protection, the surface treatment of the introduction of atmospheric pressure plasma cleaning machine is more clean, you can make a big difference
Plasma surface treatment of metal materials can remove nano-scale oil, oxide and rust on the surface of materials
Usually the place of treatment is mainly two aspects, one is to remove phosphating surface organic layer, the other is to remove oxide
The use of plasma cleaning machine can make the surface contaminated by organic matter will be subjected to ion bombardment; Under vacuum and instantaneous high temperature, some pollutants evaporate. And under the impact of high-energy particles, the pollutants are crushed and carried out in a vacuum.
The metal oxide will react ionic with the treated gas, usually argon and hydrogen. Sometimes a two-step process is used. The first step is to oxidize the surface with oxygen for 5min. The second step is to remove the oxide layer with a mixture of hydrogen and argon. It can also be treated with several gases simultaneously. After the plasma cleaning machine treatment, and then a series of operations on the metal, its qualification will be much improved.
