CRACK GROWTH LIMITER IN HIGH-PRESSURE WELDED PIPELINES AND METHOD OF MAKING IT

Title:

CRACK GROWTH LIMITER IN HIGH-PRESSURE WELDED PIPELINES AND METHOD OF MAKING IT

Document Type and Number:

WIPO Patent Application WO/1990/001671

Kind Code:

A1

Abstract:

A crack growth limiter (1) consists of a pipe section (5) with insertions (6) of elongate form built into its walls and oriented at an angle to the expected crack growth direction. The insertions (6) are made of a material whose strength is equal to or exceeds that of the material of the limiter (1). A method of making said crack growth limiter (1) provides for placing in the casting mould, before pouring the molten metal, the insertions of elongate form and for welding the sheet blank, during the pipe-making process, along those edges of the blank where the end-faces of the insertions are situated.

Inventors:

PATON BORIS EVGENIEVICH (SU)
MEDOVAR BORIS IZRAILEVICH (SU)
BOGACHENKO ALEXEI GEORGIEVICH (SU)
SAENKO VLADIMIR YAKOVLEVICH (SU)
US VASILY IVANOVICH (SU)
MEDOVAR LEV BORISOVICH (SU)
PIVOVARSKY NILOLAI BORISOVICH (SU)
BESHENTSEV ANATOLY VASILIEVICH (SU)
POSTIZHENKO VLADIMIR KALISTRAT (SU)

Application Number:

PCT/SU1989/000072

Publication Date:

February 22, 1990

Filing Date:

March 21, 1989

Export Citation:

Click for automatic bibliography generation Help

Assignee:

INST ELEKTROSWARKI PATONA (SU)

International Classes:

F16L13/02; B21B1/38; B21C37/06; B23K31/00; F16L57/02; (IPC1-7): B23K31/00

Foreign References:

SU1060375A1	1983-12-15
US3698746A	1972-10-17
US3870350A	1975-03-11

Other References: