METHOD OF MAKING MULTI-LAYER PIPE OF STEEL BELTS Russian patent published in 2004 - IPC

Abstract RU 2235936 C2

FIELD: pipeline engineering.

SUBSTANCE: method includes making at least a part of the inner layer of the pipe and outer layer by winding the steel belt on the inner layer. The first steel belt is covered with a gel comprising metalloorganic matter before winding.

EFFECT: enhanced crack resistance.

48 cl, 17 dwg

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RU 2 235 936 C2

Authors

Fridrikh Ral'F S.

Ehndres Garrett Dzh.

Sheng Kvizkhong

Inglkhart Lehmont T.

De Bi Stefan

Van Brakel Jerun

Dates

2004-09-10Published

1999-11-17Filed