PIPE WITH INTERNAL PROTECTIVE COATING Russian patent published in 2017 - IPC F16L58/00 F16L9/00

Abstract RU 2616429 C1

FIELD: machine engineering.

SUBSTANCE: tube with internal protective coating consisting of a tube, the internal protective coating of the stainless steel shell, which is hermetically closed ends of the inner protective coating and welding chamfer, between the ends of the pipe and the shells of stainless steel set of stainless steel ring.

EFFECT: invention improves the reliability of protection against corrosion of the weld zone of pipe joints in the pipeline.

4 cl, 1 dwg

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RU 2 616 429 C1

Authors

Ajduganov Vyacheslav Mikhajlovich

Ajduganov Dmitrij Nikolaevich

Dates

2017-04-14—Published

2016-01-12—Filed