| 摘要 |
<p>A pipe section (1) is described comprising a first end, or tip end (2), and a second end, or sleeve end (3). The tip end (2) has a smooth, inner wall (13) and a total wall profile height corresponding to the wall profile height of a constructed pipe. The tip end (2) furthermore includes a smooth outer wall (14) which is connected with the inner wall (13) by ribs (15). A tool for manufacturing the pipe section (1) includes a casting tool (19), with at least a casting core (17), and an inner element (20) having an external form corresponding to the desired inner form of the tip end (2) of the pipe section (1). The casting core (17) comprises a number of lips (21) which are parallel with the axis of the tip end (2) of the pipe section (1).</p> |
