Plasma marking torch and method of operating same

Details Plasma marking torch and method of operating same Plasma marking torch and method of operating same

1998-05-20

2000-04-25

Paschall, Mark

Electric heating

Metal heating

By arc

21912144, 21912154, 21912155, B23K 1000

Patent

active

060546697

ABSTRACT:
A plasma marking torch for marking metal workpieces with lines, numbers, or symbols, and which utilizes a non-cutting plasma gas such as argon, and a shield gas which comprises an air/water mist mixture. In one disclosed embodiment, the shield gas passes serially into contact with the electrode and the nozzle so as to efficiently cool the same, and it then passes through an annular orifice surrounding the bore of the nozzle to the workpiece. In another embodiment, provision is made for selectively operating the torch either in a cutting mode, or a marking mode.

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