PRODUCTION OF STEEL PIPE WITH INNER PLASTIC PIPE FOR BONDING BY WELDING Russian patent published in 2014 - IPC F16L13/02

Abstract RU 2525032 C1

FIELD: metallurgy.

SUBSTANCE: outer sleeves made of the same metal of pipe are fitted in metal pipe ends so that their inner ends go against the stop into plastic pipe ends to be secured by mandrelling. Then, fitted are inner sleeves of stainless steel in outer sleeves and plastic pipe ends to secure plastic pipe ends relative outer sleeves by expansion.

EFFECT: more reliable joint of steel pipe with inner plastic pipe.

3 cl, 2 dwg

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RU 2 525 032 C1

Authors

Ajduganov Vjacheslav Mikhajlovich

Dates

2014-08-10—Published

2013-05-06—Filed