FIELD: metallurgy.
SUBSTANCE: invention relates to the metallurgical industry, more particularly to methods of manufacturing and assembling welded pipelines. Welding of each pair of adjacent pipes with annular seams is carried out after joint deformation by expansion of the ends of the said pair of pipes in a loaded condition, followed by unloading after welding.
EFFECT: improves the accuracy of the pipe connection.
1 cl, 5 dwg
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|
RU2162758C2 |
