| 摘要 |
A method and an apparatus for end-to-end joining of preferably tubular bodies (1, 2) of a material which lends itself to melting by a high-frequency electric field, preferably polyvinyl chloride. The two bodies (1, 2) are placed in juxtaposed position with the end faces (25) to be joined in facing relationship and their end parts are enclosed in a conductive jaw (15, 18/16, 19) or similar tool which is connected to a high-frequency electric current generator. A high-frequency electric field is created between the jaws in the area of the joint. A sleeve-shaped body (26) is provided to support the walls of the bodies, so that the high-frequency electric field effects welding-together of the joint faces while retaining the shape of the bodies. |
