| 摘要 |
THE INVENTION RELATES TO A TUBULAR HELICAL SUPPORT (1) FOR THE RADIAL SUPPORT OF ELASTICALLY EXPANDED TUBE MATERIAL (26) AND A METHOD FOR THE PRODUCTION THEREOF. THE HELICAL SUPPORT (1) IS CONSTRUCTED OF AT LEAST ONE EXTRUDED BODY (2) WOUND TO FORM SEVERAL WINDINGS (15), THE EDGES (5, 6) OF WHICH ARE CONNECTED TO ONE ANOTHER IN THE LONGITUDINAL DIRECTION (L) OF THE HELICAL SUPPORT (1) AT LEAST IN PORTIONS. IN ORDER TO PROVIDE A HELICAL SUPPORT (1) WHICH RELIABLY WITHSTANDS THE PRESSURE FORCES OF THE EXPANDED TUBE MATERIAL (26) AND WHICH CAN EASILY BE REMOVED FROM THE TUBE MATERIAL (26), IT IS PROVIDED ACCORDING TO THE INVENTION THAT THE EDGES (5, 6) ARE CONNECTED TO ONE ANOTHER BY AT LEAST ONE LASER WELD SEAM (16). |
