| 摘要 |
For producing an airtight sealing of two foils (4, 5) a metal slide (3) is used that is open in the side, and a flexible tube (1), the cavity (2) of which is hermetically sealed, as the foils (4, 5) are led into the slide (3) with the tube (1) at the top, after which a pressure is put to the cavity (2) of the tube so that it will expand and thus press the foils (4, 5) against the inner walls of the slide and in this way secure a complete sealing between the parts. When the pressure is removed from the interior of the tube, the parts can be easily separated and the method can be repeated. For placing the foils (4, 5) and the tube (1) in the right way a tool can be used, which consists of rolls (6, 7, 8) so that the foils (4, 5) and the tube (1) are placed correctly in the slide (3) when the tool is taken across the slide (3) by means of the rolls (8, 6). |
