PIPE WITH INNER PLASTIC SHELL Russian patent published in 2005 - IPC

Abstract RU 2266462 C2

FIELD: pipeline transport.

SUBSTANCE: pipe comprises protecting bushings concentrically mounted at the ends of the pipe. The outer diameter of the protecting bushing is less than that of the pipe by half thickness of the inner plastic shell. The free end of the outer surface of the protecting bushing is provided with high-temperature filler, e.g. the mixture of chamotte sand with liquid glass or aluminum foil with high-temperature filler. During welding the end of the pipe, the high-temperature filler protects the plastic shell.

EFFECT: enhanced reliability.

1 dwg

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RU 2 266 462 C2

Authors

Kopylov V.A.

Zarubezhnov G.N.

Dates

2005-12-20Published

2004-02-16Filed