SPECIAL FEATURES OF MAGNETOGRAPHIC INSPECTION OF BUTT-WELDED SEAMS INMARITIME PIPELINES

Authors
VAULIN SL MIKHAILOV SP SHUR ML SHCHERBININ VE
Citation
Sl. Vaulin et al., SPECIAL FEATURES OF MAGNETOGRAPHIC INSPECTION OF BUTT-WELDED SEAMS INMARITIME PIPELINES, Russian journal of nondestructive testing, 29(3), 1993, pp. 225-229
Citations number
13
Categorie Soggetti
Material Science
Journal title
Russian journal of nondestructive testing → ACNP
ISSN journal
10618309
Volume
29
Issue
3
Year of publication
1993
Pages
225 - 229
Database
ISI
SICI code
1061-8309(1993)29:3<225:SFOMIO>2.0.ZU;2-M
Abstract
The article describes some special features of magnetographic inspecti on of annular butt-welded seams in maritime pipelines with 16-mm wall thickness. It shows that the standard magnetizing devices PNU do not m ake it possible to detect defects across the entire thickness of the o bject; the article suggests and reports on tests of methods of suffici ently powerful magnetization under field conditions and in inspection under water. It describes the automated magnetographic flaw detector M GDSSh with microcomputer.