METHOD AND APPARATUS FOR IMPROVED PLASMA ARC TORCH CUT QUALITY

摘要

Controlling the flow of a secondary gas reduces entrainment of the secondary gas and a plasma gas that forms a plasma arc in a plasma arc torch system. Reducing entrainment of the secondary gas and the plasma gas that forms the plasma arc improves the quality of cuts made with the plasma arc torch. This goal is achieved by controlling the density of the secondary gas to reduce a density differential between the secondary gas and the plasma gas.