| 摘要 |
PURPOSE:To uniformize the thickness of a sheet and to improve the flatness by constituting the external diameters of the rolled parts of work rolls so that they are made smaller than the external diameters of non-rolled parts and roll kisses can be generated on these non-rolled parts in a rolling time. CONSTITUTION:When the external diameters of the non-rolled parts 1b of the work rolls 1 larger than those of the rolled parts 1a, the roll kisses can be generated easily at the end parts of the work rolls 1. In this way, when reaction is generated by the roll kisses on the work rolls, the deflections of the work rolls are reduced by receiving reverse action by the reaction and a flatter extremely thin strip steel can be rolled. In the kiss rolling, as a roll gap is narrower, load is larger and the reaction is large, therefore, the parallelism between the upper and lower work rolls is improved and a rolled stock poor in snaking can be obtained. In this way, the thickness of the sheet is uniformized, the flatness is improved and the rolls can be adjusted easily. |
