| 摘要 |
<p>The invention concerns a flexible metal tube with closed section and a flexible pipe comprising such a metal tube, comprising a strip (1) with substantially constant thickness and wound helically around said axis, said strip including at least a closed section (2) whereof the walls are formed by portions of a common turn of the strip, said closed section including an upper wall (3) and a lower wall (4) and being arranged at one end of said strip and whereof the other end terminates in a free edge (8). The invention is characterised in that the closed section (2) is trapezoidal in cross-section and a bulge (9) radially oriented towards the upper wall (3) of the closed section (2) is provided between said closed section (2) and the free edge (8) of said stirrup. The invention is in particular applicable to flexible tubular pipes.</p> |
