当电弧经过特殊构造的喷咀被强迫压缩后,形成等离子体——被加热至极高温度,并被高度电离了的气体。利用这种气体将电弧功率转移至工件。工件接正极,阴极斑点落在工件上,热量很高,使工件熔化并被吹掉,形成等离子切割的过程。由于等离子体能量密度集中,温度极高,其切割速度快,因此割缝窄,工件变形小,是一般氧—乙炔切割、电弧切割所达不到的。 When a specially constructed nozzle of the arc is forced to compress, a plasma is formed - a gas that is heated to an extremely high temperature and is highly ionized. Use this gas to transfer arc power to the workpiece. The workpiece then positive, cathode spot on the workpiece, the heat is high, so that the workpiece is melted and blown off, the formation of plasma cutting process. As the plasma energy density, high temperature, the cutting speed, so narrow kerf, the workpiece deformation is small, is the general oxygen - acetylene cutting, arc cutting up to reach.