| 摘要 |
The invention relates to a method for connecting the open end of a thin-walled plastic tube having an outside diameter of up to 3 mm (capillary tube) to a main tube made of plastic and having a considerably larger diameter, such that the capillary tube projects radially from the circumferential surface of the main tube, and the interior of the capillary tube is connected to the interior of the main tube by way of a radial passage configured in the wall of the main tube. One end of the capillary tube, which has an outside diameter that equals or is smaller than the diameter of the passage, is at least partially inserted into the passage from the outside, and at least part of the inserted end of the capillary tube and the immediately surrounding part of the wall of the passage in the main tube are subsequently heated in common. Said parts are thus softened such that they are fused to one another after cooling. The heating preferably takes place by inserting a heated punch into the passage from the inside of the main tube. |
