| 摘要 |
The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter corrugating roll (12) captured between a larger diameter conventional corrugating (1) roll and a backing roll arrangement (12). The smaller diameter corrugating roll is captured to prevent bending thereof under corrugating loads. The corrugator may be operated at high speeds without the adverse increase in labyrinth path and web tension characteristic of a pair of large diameter corrugating rolls. <IMAGE> |
