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2 087 788

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C1

(51)

IPC

(21) (22)

Application

93057481/06, 1993-12-27

(22)

Actual filing date

1993-12-27

(45)

Published

1997-08-20

(72)

Inventor

Veter V.V.Samojlov M.I.Babanov A.A.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Proizvodstvennoe PredprijatieVeter Vladimir Vladimirovich

SHAPED PART OF PIPE LINE Russian patent published in 1997 - IPC

Abstract RU 2087788 C1

FIELD: pipe line engineering. SUBSTANCE: shaped part has pipe 1 with an opening over periphery of which branch pipe 2 is welded. Pipe 1 and branch pipe 2 are made of high-strength pig iron with ball-like graphite and are welded with nickel containing alloy. The inner and outer surface layers of the part to be joined are at a distance from each other that is no less than twice width of the pipe and at the depth no less than 0.1 mm outside and no less than 0.7 mm on the inner surfaces. EFFECT: improved design. 3 cl, 4 dwg

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RU 2 087 788 C1

Authors

Veter V.V.

Samojlov M.I.

Babanov A.A.

Dates

1997-08-20—Published

1993-12-27—Filed

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