Double-wall welded tube and method for producing said tube

Details Double-wall welded tube and method for producing said tube Double-wall welded tube and method for producing said tube

F - Mech Eng,Light,Heat,Weapons

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26/155, 189/26

F16L 3/22 (2006.01) B21C 37/06 (2006.01) B21C 37/09 (2006.01) B21C 37/15 (2006.01) F16L 9/18 (2006.01)

Patent

CA 1230065

ABSTRACT OF THE DISCLOSURE: A double-wall welded tube and method for producing said tube. The double-wall welded tube has two portions of the tube, in the region of which the weld is located, which are each defined by the outer surface of a fold formed by the material constituting, in this region, the double wall of the tube. In this way, the region in which the weld is effected is perfectly homogeneous and the weld can there- fore be of very high quality.

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