摘要:
An axial reinforcement system is disclosed that provides a shell (i.e., a form or jacket) that protects a weight-bearing member (e.g., a cement column) from a corrosive environment and which also substantially increases the structural capacity of the weight-bearing member. The shell is integrated with “positioners” and reinforcing elements, the combination of which offers several advantages over conventional shells. The positioner is attached directly to the shell and the positioner is, in turn, secured to a reinforcing element, which can be a reinforced steel, such as rebar, or a carbon fiber reinforced polymer material. The axial reinforcement system has been found to substantially increase the structural rigidity of the weight-bearing member, while at the same time protecting the weight-bearing member from corrosion and is also simple to install.
摘要:
An apparatus configured to apply protective sheeting of polymer material around a cutback on a pipeline has a frame located close to a pipeline extending along a longitudinal axis; a manipulator fitted to the frame and having a guide system movable between a rest position at a distance from the pipeline, and a work position in which the guide system is fitted around the pipeline; and an extrusion die movable selectively along the guide system and around the pipeline to supply and apply protective sheeting around the cutback on the pipeline.
摘要:
An apparatus configured to apply protective sheeting of polymer material around a cutback on a pipeline has a frame located close to a pipeline extending along a longitudinal axis; a manipulator fitted to the frame and having a guide system movable between a rest position at a distance from the pipeline, and a work position in which the guide system is fitted around the pipeline; and an extrusion die movable selectively along the guide system and around the pipeline to supply and apply protective sheeting around the cutback on the pipeline.
摘要:
A method of applying protective sheeting (12) of polymer material to a pipeline (P), the method including the steps of advancing a carriage (16) along an annular path extending about the longitudinal axis (A1) of the pipeline (P); extruding the protective sheeting (12) on the carriage (16); winding the protective sheeting (12), as it is extruded, about a cutback (8) on the pipeline (P); and plastifying the polymer material on board the carriage (16).
摘要:
The present disclosure is directed to an apparatus (100) for applying a graft material to a stent. (4) The apparatus may include a hollow mandrel (3) adapted to receive a stent. The mandrel (3) may include apertures adapted to allow a vacuum to be applied in order to temporarily affix the graft material sheath (20) to the stent. A forming roller (8) lying axially parallel to and in contact with the stent (4) may be included. Rotation of the forming roller may rotate the stent about its longitudinal axis. A second roller (9) for applying the sheath (20) of graft material to the stent as the stent (4) is rotated about its axis may be included. Further, the present disclosure is directed to a method of manufacturing stent grafts.
摘要:
A method is described for arranging a protective coat around a section (7) of a pipeline (1) that consists of a metal pipe (2, 3) provided with a plastic protective mantle (5, 6), which protective mantle (5, 6) is interrupted or removed at the location of said section (7). Around said section (7) and partly overlapping with edge parts of the protective mantle (5, 6), a plate (10) is bent, the plate being made of a plastic material that can be molten together with the material of the protective mantle (5, 6), with thermal tapes (50) interposed at the location of interfaces (35) between the protective mantle (5, 6) and the plate (10). The plate is attached to the edge parts of the protective mantle (5, 6) by Ohmic heating.
摘要:
The present invention relates to sealing means made of a plastically deformable material for mechanical sealing of hollow hoses (2) of elastic material by means of an appliance having at least two jaws, at least one of which is movable towards and away from the other and which, when moving towards each other, crimp the sealing means against the hose (2) for contamination-tight sealing of the same, the sealing means (20) comprises at least one sealing member (4, 4'; 44, 44'; 64, 64'; 74, 74'; 84), which has two opposite ends and an opening (40, 40') that extends between said ends to allow the at least one sealing member to be slipped onto the hose (2) to be sealed. The present invention also relates to a kit comprising a sealing means and an appliance for sealing of hollow hoses and to a method for mechanical sealing of hollow hoses.
摘要:
A lateral pipe (31) that intersects a main pipe (30) is lined using a lateral pipe-lining material (1) having a tubular resin-absorbing material (2) impregnated with a curable resin and having a flange (3) formed at one end thereof. The flange of the lateral pipe-lining material is disposed on an expandable flange-pressing implement (70), and an adhesive (82) is applied onto the flange (3). Hot water is fed to the flange-pressing implement (70) to expand and press the flange (3) against the periphery of the lateral pipe opening of the main pipe (30). The hot water thus fed also heats and cures the adhesive (82) on the flange to secure it to the periphery of the lateral pipe opening of the main pipe (30). The drainage performance of the main pipe (30) can be improved because a gap does not form between the flange of the lateral pipe-lining material and the periphery of the lateral pipe opening of the main pipe, and neither underground water nor earth or sand flows into the main pipe.