PLASMA ARC TORCH CUTTING COMPONENT WITH OPTIMIZED WATER COOLING

摘要

A nozzle (200) or retaining cap (244) for a plasma arc torch (240) that i ncludes a surface defining a conductive contact portion (208, 210) for excha nging heat with an adjacent torch component. The adjacent torch component ca n be a retaining cap, electrode or nozzle. The surface of the nozzle or reta ining cap can also at least partially define a cooling channel (256) having a curvilinear surface (222, 224). A sealant portion (212) can be positioned between the conductive contact portion and the cooling channel. The sealant portion can form or create a fluid barrier between the cooling channel and t he conductive portion.