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2 034 930

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C1

(51)

IPC

(21) (22)

Application

5055551/26, 1992-07-21

(22)

Actual filing date

1992-07-21

(45)

Published

1995-05-10

(72)

Inventor

Artjushkin V.N.Vorob'Ev A.A.Davydov Ju.M.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Razrabotki I Ehkspluatatsii Neftepromyslovykh Trub

METHOD FOR ENAMELING INTERNAL SURFACES OF STEEL TUBES Russian patent published in 1995 - IPC

Abstract RU 2034930 C1

FIELD: enameling. SUBSTANCE: method for enameling internal surfaces of steel tubes intended for welding, includes surface treatment, applying enamel slip, its drying, annealing and cooling down to 60 to 80 C, followed by applying slip paste on internal surfaces of tube ends, and heating tube ends up to the temperature of its fusion. EFFECT: high quality of the coating.

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RU 2 034 930 C1

Authors

Artjushkin V.N.

Vorob'Ev A.A.

Davydov Ju.M.

Dates

1995-05-10—Published

1992-07-21—Filed

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