method of repairing corrosive defects located near weld and on weld of conduit

摘要

A method of repairing corrosive defects located near the weld and on the weld of a conduit, at which the temporary tread rings, which are installed directly to the weld, have a width, which is sufficient for overlapping the corrosive section for 50 mm, but not more than the half of the diameter of conduit, and welded by longitudinal seams. Installation and welding of the longitudinal seams of temporary rings are performed, the rings are welded on to the bandages and conduit by lap weld. Outer shell is installed, it is welded by longitudinal seam to the temporary rings by fillet weld.