METHOD FOR ASSEMBLING AN END-PIECE OF A FLEXIBLE PIPE AND ASSOCATED PRE-ASSEMBLY

摘要

A method comprises including the following steps: placing a rear locking collar (62) around an outer ply (25), placing a first shaping guide (82) for shaping the folding of the end segments (32) of the outer ply (25); folding the end segments (32) of the outer ply (25) rearwards, folding the end segments (32) of an inner ply (24) rearwards.;Before the step for folding the end segments (32) of the inner ply (24) rearwards, a second shaping guide (84) is placed for shaping the folding of the end segments (32) of the inner ply (24), a second shaping guide (84) being separate from the first shaping guide (82), the end segments (32) of the inner ply (24) bearing on the second shaping guide (84) after the folding step.

主权项

1. A method for assembling an end-piece of a flexible pipe, the flexible pipe including an inner tubular structure having a central axis, an inner ply of tensile armors positioned around the inner tubular structure and an outer ply of tensile armors positioned around the inner ply, the method comprising the following steps:
placing a rear locking collar of the armor plies around the outer ply; placing a first shaping guide for shaping the folding of the end segments of the outer ply; folding the end segments of the outer ply rearwards while forming a bend in front of the locking collar, the end segments of the outer ply pressing on the first guide; folding the end segments of the inner ply rearwards; the method including, before the step for folding the end segments of the inner ply rearwards, placing a second shaping guide for shaping the folding of the end segments of the inner ply, the second shaping guide being separate from the first shaping guide, the end segments of the inner ply bearing on the second shaping guide after the folding step, the method including, after the folding steps, the following steps: inserting a front sealing assembly around the inner tubular structure; placing a vault of the end-piece in the end of the inner tubular structure; folding the end segments of the inner ply forward to place them around the vault; removing the second shaping guide; folding the end segments of the outer ply forward to place them outwardly at the end segments of the inner ply; removing the first shaping guide; and fastening an outer cover of the end-piece on the vault, the vault and the outer cover delimiting a chamber -between them for receiving the end segments of the inner ply and the outer ply.