| 摘要 |
<p>Method for manufacturing coaxial tubes and relative coaxial tubes obtained using such method, having at least one bending zone (17) and comprising an outer tube (13) having an inner wall (14) of diameter dint/ an inner tube (11), placed inside said outer tube (13) and having an outer wall (12) of diameter dext smaller than the diameter dint, an annular interspace (15) between the outer wall (12) of the inner tube (11) and the inner wall (14) of the outer tube (13), at least one separation element in metal mesh (20) placed in the interspace (15) at at least one bending zone (17) and permeable to fluids which may be present in said interspace (15), and being configured to transmit a bending force from the outer tube (13) to the inner tube (11) and to prevent the collapse and limit the deformation of the tubes (11, 13) when the bending force is applied.</p> |
