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2 149 479

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IPC

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Application

99106041/09, 1999-03-23

(24)

Start date

1999-03-23

(22)

Actual filing date

1999-03-23

(45)

Published

2000-05-20

(72)

Inventor

Ljushinskij A.V.Ganichev V.A.Kuklev S.V.Sokolov D.S.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Ehlektronnykh Priborov

METHOD FOR SEALING VACUUM ENCLOSURE OF X-RAY OPTICAL CONVERTER Russian patent published in 2000 - IPC

Abstract RU 2149479 C1

FIELD: vacuum-tube devices including X-ray optical converters. SUBSTANCE: aluminum ring and steal cup having glass end portion are joined together by diffusion sealing. Parts to be joined are first heated to plastic strain temperature of aluminum ring Tpl.s.min

at sealing pressure Pseal = 0. As soon as they are heated to Tpl.s.min
, pressure Pseal = 0,5 ± 0,01 kgf/sq. mm is applied to these parts, then temperature Tseal and pressure Pseal are linearly increased so that at Tseal = 600o± 5oC Pseal = 1,8÷2,0 kgf/sq. mm. Parts being joined are exposed to these sealing temperatures and pressures for 25-30 minutes and then cooled down to room temperature at Pseal = 1.8-2.0 kgf/sq. mm. EFFECT: improved quality of enclosure due to its better sealing. 1 dwg

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RU 2 149 479 C1

Authors

Ljushinskij A.V.

Ganichev V.A.

Kuklev S.V.

Sokolov D.S.

Dates

2000-05-20—Published

1999-03-23—Filed

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