METHOD OF MANUFACTURE OF PIPE WITH INNER ANTICORROSIVE COAT Russian patent published in 2003 - IPC

Abstract RU 2213287 C2

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

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RU 2 213 287 C2

Authors

Ajduganov V.M.

Ajduganova N.M.

Starshov M.I.

Chakheev S.L.

Volkova L.I.

Dates

2003-09-27Published

2001-09-28Filed