| 摘要 |
In a sleeve connection for thermally insulated pipes, a plastic strip is formed round the connecting point, with an overlap, and is welded to the outer pipes of the pipeline, and in the region of the overlapping seam, by means of electrically heatable wires. The plastic strip (5) has chamfers (10) and (11) on its longitudinal edges so that it has a trapezoidal cross-section. The width of the overlap is sufficiently great that the heating element with the heating conductor (13) carrying out the welding is surrounded on both sides by regions of the complete wall thickness of the plastic strip (5). <IMAGE> |
