| 摘要 |
PURPOSE:To perform efficiently continuous production of even a long-sized and wide matter of a sheet made of synthetic resin or rubber, by a method wherein butted end faces of the sheets are joined by welding to each other. CONSTITUTION:End faces of sheets 2 made of synthetic resin or rubber, which are to be joined to each other are butted against each other and the end faces are joined to each other. On this occasion, butting end faces of the sheets 2 are joined to each other by welding. Hereupon, since the sheets 2 are joined to each other by butting against to each other by welding by making use of heating of a material as a material of the sheet, joining can be performed not only between the sheet 2 comprised of materials identical with each other but also between the sheets 2 comprised of materials different from each other. Since joining by welding is performed like this, continuous production of even a long-sized and wide matter. |
