A gas directed into the torch to surround the electrode, which becomes ionized by the arc to form a plasma and issues from the torch nozzle as a plasma jet. (Also referred to as plasma gas or orifice gas).
glossary
glossary
A portable container used for transportation and storage of a compressed gas.
A simple cylindrical metering orifice. These are operated at 25-60 psig depending on manufacture.
The arrangement of direct current arc welding leads in which the electrode is the negative pole and workpiece is the positive pole of the welding arc.
Refers to low temperatures, usually -200 o (-130 o) or below.