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Application

97103827/06, 1997-03-12

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Actual filing date

1997-03-12

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Published

1999-09-27

(72)

Inventor

Takhautdinov Sh.F.Zagirov M.M.Magalimov A.F.Zaljatov M.M.Kalachev I.F.

(73)

Holder

Nauchno-Proizvodstvennyj Otdel Zashchity Neftepromyslovogo Oborudovanija Ot Korrozii I Podderzhanija Plastovogo Davlenija Npo. I Ppd"

METHOD OF MANUFACTURE OF METALLOPLASTIC PIPE Russian patent published in 1999 - IPC

Abstract RU 2138723 C1

FIELD: erection of pipes. SUBSTANCE: plastic envelope is placed in metal pipe in spaced relation. Circular space is filled with cement mortar and is sealed up. Then pressure is smoothly raised inside plastic envelope at simultaneous throttling till cement mortar filtrate is removed. Sealing-up and pressure raising procedures are performed before hardening of cement. EFFECT: improved quality of pipe. 2 cl, 2 dwg

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RU 2 138 723 C1

Authors

Takhautdinov Sh.F.

Zagirov M.M.

Magalimov A.F.

Zaljatov M.M.

Kalachev I.F.

Dates

1999-09-27—Published

1997-03-12—Filed

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