| 摘要 |
The process consists of the following steps: a) sealing, if need be, any defect in the section with the aid of a sealing material; b) fixing onto the pipe (2) the end of a flexible profile (3) made of longitudinal fibres coated in a thermoplastic matrix, the elastic limit of said fibres being greater than that of the pipe (2) or chamber material: c) rotating means (7) about pipe (2) axially displacing said means along the latter in order to supply said profile (9); d) tensionally winding the profile (9) in successive spirals around the pipe (2) at and near said section, on either side of the latter by heating in order to melt substantially the entire matrix mass, and then by cooling the profile upon application; (e) the number of profile layers superposed at the same location and the angles and winding tension of said profile (9) being sufficient to restore to the pipe section or chamber (2) its predefined mechanical features. Applicable especially in repairing or restoring in-situ, a pipe or chamber section for receiving pressurized fluid. |
