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2 157 415

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IPC

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Application

99102054/02, 1999-02-04

(24)

Start date

1999-02-04

(22)

Actual filing date

1999-02-04

(45)

Published

2000-10-10

(72)

Inventor

Semenov V.N.Bobkov V.I.Zykov M.I.Polushin V.G.Katorgin B.I.Derkach G.G.Chvanov V.K.Movchan Ju.V.Pestov Ju.A.Ogibalin P.I.Avsenjuk T.M.Vycherov A.N.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Npo Imeni Akademika V.P. Glushko"

METHOD OF MANUFACTURE OF MULTILAYER THIN-WALLED BELLOWS FROM STAINLESS STEEL Russian patent published in 2000 - IPC

Abstract RU 2157415 C1

FIELD: rocket engine manufacture; applicable also in other fields of engineering where bellows are operated under wide ranges of temperatures and pressures. SUBSTANCE: round billets are produced from preliminary cut sheets of preset sizes and welded by pulsed arc welding in medium of protective gases. Assembled multilayer package is welded up from both ends and subjected to heat treatment in protective medium at temperature of 1000- 1130 C with holding at this temperature for 20-45 min and subsequent cooling. EFFECT: improved product operating characteristics. 5 cl, 2 ex

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RU 2 157 415 C1

Authors

Semenov V.N.

Bobkov V.I.

Zykov M.I.

Polushin V.G.

Katorgin B.I.

Derkach G.G.

Chvanov V.K.

Movchan Ju.V.

Pestov Ju.A.

Ogibalin P.I.

Avsenjuk T.M.

Vycherov A.N.

Dates

2000-10-10—Published

1999-02-04—Filed