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2 030 735

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C1

(51)

IPC

(21) (22)

Application

5004274/25, 1991-07-02

(22)

Actual filing date

1991-07-02

(45)

Published

1995-03-10

(72)

Inventor

Petrov V.P.Karpenko G.V.Savvin N.I.Kartseva G.G.Shubert G.N.Rjabov V.P.

(73)

Holder

Arendnaja Organizatsija Nauchno-Issledovatel'Skij I Proektnyj Institut Khimiko-Fotograficheskoj Promyshlennosti

PROCESS OF TAKING DEFECTOGRAMS UNDER RADIOGRAPHIC OR X-RAY TESTING OF WELDS Russian patent published in 1995 - IPC

Abstract RU 2030735 C1

FIELD: quality control. SUBSTANCE: process of taking defectograms under radiographic or X-ray testing-consists in joint exposure of radiographic film and amplifying screen to X-ray or gamma radiation through tested article. Then exposed film is subjected to chemical-photographic processing. In process radiographic film with one-side emulsion layer and one amplifying lead screen contacting it is used. Film is exposed from side of backing. Duration of exposure is established by value of optical density of radiograms over section corresponding to smooth wall of tested article which achieves value 2.3-2.5 bars after chemical-photographic processing. EFFECT: increased authenticity of testing. 1 tbl

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RU 2 030 735 C1

Authors

Petrov V.P.

Karpenko G.V.

Savvin N.I.

Kartseva G.G.

Shubert G.N.

Rjabov V.P.

Dates

1995-03-10—Published

1991-07-02—Filed

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