PIPE WITH INNER ANTICORROSIVE COATING Russian patent published in 2003 - IPC

Abstract RU 2215928 C1

FIELD: transportation of aggressive media. SUBSTANCE: invention relates to pipe transport and it can be used at manufacture of pipes and laying of pipelines. According to proposed invention endpieces are butt-welded to ends of pipe. Said endpieces are coated with corrosion-resistant steel on inner surface and they are calibrated by inner diameter to not less than maximum limited size for proposed type-size of pipes, and coating is applied to inner surface of pipe with overlapping of at least part of length of endpieces. EFFECT: simplified process of manufacture, improved reliability of pipe. 5 cl, 3 dwg

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RU 2 215 928 C1

Authors

Ibragimov N.G.

Dautov F.I.

Fadeev V.G.

Gareev R.M.

Dautov D.F.

Dates

2003-11-10—Published

2002-03-14—Filed