METHOD OF GAS TUNGSTEN ARC WELDING WITH ACTIVE FLUX

摘要

A gas tungsten arc welding method is provided to use the activity flux faster and making the welding work easy by forming a first layer welding bead. A gas tungsten arc welding method using the activity flux performs the followings: a step that it improves and processes the base material(100) and the root opening(a) sticks together(S100); a step for coating the groove face(d) of the weld the activity flux(F) it increases the penetration of the base material(S120); a step for performing to the autogenous welding the welding rod is not used the gas tungsten arc welding is performed to the weld(S130); and a step for forming the tunica rear side weld bead(W) in the weld(S140).