It is used for metal cladding and metal spraying application. There is a base metal plate or a component and on this we can give the deposition or coating of some different metal or even ceramic. This coating metal is available in a fine powder form and in our PTA system there is a powder feeder through which this metal powder is passed in our PTA torch. This powder is then passed through the plasma arc in the PTA torch where it gets melted and when we hold this torch near the job on which we have to do the coating or cladding (Job is given the positive supply from the power source) the plasma arc is transferred to the job and the process of coating starts.
The thickness of the coating to be done can be controlled by adjusting the flow of the powder from the powder feeder.