Backing ring for steel pipe pile relay welding

摘要

(57) Abstract Objective At the time of relay welding of the steel pipe pile, it dissolves, leaving and dissolvingThe welding malfunction due to falling and the protruding of the gold is prevented. QualityYou inspect accurately. Constitution ri which is interposed into the welding destal of the lower pile and the upper pileIn ngu itself 11, small stick 12 of multiple manuals installation to radial patternru. Providing the cut in the base of small stick 12, the ring itself 1Try to be able to separate small stick 12 simply from 1.