| 摘要 |
<p>PURPOSE:To improve the accuracy of the thickness in the transverse direction of a sheet by shifting slightly upper and lower work rolls within a range where both ends of a material to be rolled do not shift from the convergent ground surfaces of the rolls. CONSTITUTION:A pair of the work rolls 1, 1 having the crowns formed by grinding convergently one end of the body of the rolls 1, 1 are superposed above and below by disposing alternately said ends. The material is rolled by such rolls. The rolls 1, 1 are moved according to the width of the material 2 to be rolled. The rolls 1, 1 are shifted within the range where both ends of the material 2 do not shift from the convergent ground surfaces of the rolls 1, 1 and benders are used in combination therewith to prevent an edge build-up and to control the rolls to maintain the specified crowns.</p> |
