CONTACT TIP FOR WELDING TORCHES WITH IMPROVED ARC STABILITY, WIRE MELTING RATE, AND MAINTAINABILITY

摘要

The present invention relates to a contact tip for FCAW processor having excellent durability, less thermal deformation, arc stability, and maintainability; and having a phenomenon of no burn back. According to the present invention, the contact tip for welding torches comprises: a main body composed of a metal with a higher electrical resistance than a welding wire to be fed, and a replacement unit made of copper coupled to an end portion of the main body to be disassembled and assembled. The main body has a coupling portion with a replacement unit formed as a male screw as well as welding wire insertion container and hole, and the replacement unit has a coupling portion with the main body formed as a female screw as well as welding wire insertion container and hole.;COPYRIGHT KIPO 2017