METHOD FOR PIPE REPAIRING Russian patent published in 2001 - IPC

Abstract RU 2177582 C1

FIELD: construction and repair of pipelines without stopping product transport. SUBSTANCE: defective surface of pipeline is made ready for repairs; flaw cavities are filled with paste-like hardening material; adhesive is applied to pipeline surface to winding material, the latter is wound on pipeline defective area followed by hardening of adhesive. Rolled glass-fiber plastic pre-overlapped at least on one side by polyolefin adhesive-active film is used as winding material; adhesive used in said method has viscosity of maximum 1500 cP. EFFECT: improved post-repair reliability of pipeline. 2 cl

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RU 2 177 582 C1

Authors

Dedeshko V.N.

Natrusov V.I.

Velijulin I.I.

Lapshin N.F.

Golenko Ju.V.

Dates

2001-12-27Published

2000-07-13Filed