| 摘要 |
<p>1. Process for providing a mantle tube connection across a joint between heat insulated pipes made of thermoplastics, with the ends (9, 10) of a pipe section (8) extending over the ends (6, 7) of the pipes, and the pipe section (8) is resistance welded to the ends (6, 7) of the pipes, characterized in that the ends (9, 10) of the pipe section (8) are provided with a shrinkage tension caused by expansion through heat development during the resistance welding, so that a close fit of both ends (9, 10) of the pipe section (8) against the ends (6, 7) of the pipes is guaranteed.</p> |
