| 摘要 |
The invention relates to a method for creating a support body, in particular a yarn tube (2), comprising a base element consisting of a thermoplastic material with openings and a liquid-permeable and/or gas-permeable flat cover which can be laid over the surface of said base element (7) and which is immovably attached thereto. The base element (7) is partially melted, in order to attach it to the cover. According to the inventive method, at least one section of the base element to be heated is brought into direct contact with a heated thermal element (6), by means of the continuous advancement of said base element (7) and the cover is pressed progressively onto the base element immediately after the melting process. Support bodies of this type in a rotationally symmetrical form are used, for example, as yarn tubes and support bodies with a flat and convex configuration are used as filter cartridges. The inventive method enables the cover to be securely attached to the base element, using relatively simple materials, without using an additional adhesive. |
