FIELD: manufacture of pipes with inner anticorrosive coats; erection and repair of pipe lines handling chemically aggressive media. SUBSTANCE: proposed method includes manufacture of multi-layer inserts from corrosion-resistant metal band by spiral winding of several layers inside ends of pipe; outer surface of first layer of insert is secured to inner surfaces of pipe ends and surfaces of subsequent layers of insert are welded together. EFFECT: enhanced reliability of corrosion protection of weld seam area. 2 cl, 1 dwg
Authors
Dates
2003-09-27—Published
2001-09-28—Filed