| 摘要 |
<p>In the method first the drippers (4) are made which are then fixed along a filament (22) at intervals. This assembly is then introduced into the pipe, whilst the latter is being formed by the extruder. Alternatively introduction follows extrusion. The drippers are led in sequentially. They are progressively thermally-attached to the internal wall of the tube, during its formation. Joining facilitates advancement of filament and drippers, with the pipe. The pipe is cooled down and penetrated opposite each dripper (4), to make the drip outlets. Special features include notches (9) with which the drippers are equipped.</p> |
