Can plasma spray use other gases or media

       Essentially, the purpose of introducing gas into the gun is: 1) to compress the plasma arc; 2) to control the redox atmosphere of the plasma plume.



     From the first purpose, plasma spraying may also not be limited to nitrogen and argon. In recent years, the air plasma spraying device has also reached a mature stage. As long as the oxidation barrier is broken through the spraying material, the spraying cost can be greatly reduced, and it is a promising spraying process. In addition, in recent years, the water-stabilized plasma spraying device compressed by the plasma arc with water has also developed rapidly. For example, the water-stabilized plasma spraying device of the Czech company, the powder feeding volume can be increased by 10 to 15 times compared with the gas plasma spraying, and the cost is only one tenth of the gas plasma spraying.