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2 037 732

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C1

(51)

IPC

(21) (22)

Application

93016696/29, 1993-04-01

(22)

Actual filing date

1993-04-01

(45)

Published

1995-06-19

(72)

Inventor

Drejtser Vladimir Isaakovich[Ru]Shpjurer Khervig[De]

(73)

Holder

Drejtser Vladimir Isaakovich

METHOD FOR COATING OF PIPE INNER SURFACE Russian patent published in 1995 - IPC

Abstract RU 2037732 C1

FIELD: coating of pipe inner surfaces. SUBSTANCE: introduced from one end of pipe is hose lining material based on polymer composite material. Hose material is pressed to pipe inner surface under the action of pressure of working medium and cured with steam. Pressing and curing are effected simultaneously with same heat carrier in two stages. Used at first stage is steam at pressure of 0.1-0.3 gage atmosphere for 10-30 min, and at the second stage, with pressure of 0.3-1.0 gage atmosphere for 3-4 h. EFFECT: higher efficiency. 1 tbl

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RU 2 037 732 C1

Authors

Drejtser Vladimir Isaakovich[Ru]

Shpjurer Khervig[De]

Dates

1995-06-19—Published

1993-04-01—Filed

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