公开(公告)号：EP1228818A3

公开(公告)日：2005-08-03

申请号：EP01119715.9

申请日：2001-08-24

申请人： Hitachi, Ltd.

发明人： Nishi, Hidetoshi, Hitachi, Ltd., Int. Prop. Gp. ,  Nakamae, Hirokazu, Hitachi, Ltd., Int. Prop. Gp. ,  Yasuda, Kenichi, Hitachi, Ltd., Int. Prop. Gp. ,  Horii, Kenji, Hitachi, Ltd., Int. Prop. Gp. ,  Matsui, Youichi, Hitachi, Ltd., Int. Prop. Gp. ,  Maeno, Ichirou, Hitachi, Ltd., Int. Prop. Gp. ,  Kobayashi, Hideo, Hitachi, Ltd., Int. Prop. Gp. ,  Yabe, Haruyuki, Hitachi, Ltd., Int. Prop. Gp.

IPC分类号： B21B37/40

CPC分类号： B21B37/40 ,  B21B1/24 ,  B21B1/32 ,  B21B13/142 ,  B21B27/05 ,  B21B37/28 ,  B21B2013/028 ,  B21B2027/022 ,  B21B2269/14 ,  B21B2269/16

摘要： A strip rolling mill includes a pair of upper and lower work rolls (1A, 1B) for rolling a strip (19), intermediate rolls (2A, 2B) for supporting each of the paired work rolls, and back-up rolls (3A, 3B) for supporting each of the intermediate rolls. Each of the work rolls (1A, 1B) is provided with a tapered portion (4A, 4B) at a vicinity to one end thereof in such a way that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. The rolling method for the strip rolling mill comprises the steps of: when the material (19) with a constant width is being rolled, setting axial positions of the work rolls (1A, 1B) at appropriate positions and changing axial positions of the intermediate rolls (2A, 2B) to control a thickness distribution in a width direction of the material (19) being rolled. This arrangement significantly improves an edge drop and at the same time minimizes edge drop variations, thereby preventing surface defects from occurring on the surface of the material being rolled and performing an efficient rolling operation.

摘要翻译： 带式轧机包括一对用于轧制带材（19）的上下工作辊（1A，1B），用于支撑每个成对工作辊的中间辊（2A，2B）和支承辊（3A， 3B），用于支撑每个中间辊。 每个工作辊（1A，1B）在其一端附近设置有锥形部分（4A，4B），使得工作辊的锥形部分在其辊体的相对侧上相对于 滚动轴方向。 带轧机的轧制方法包括以下步骤：当轧制具有恒定宽度的材料（19）时，将工作辊（1A，1B）的轴向位置设置在适当的位置并改变中间辊的轴向位置 （2A，2B），以控制被轧制的材料（19）的宽度方向上的厚度分布。 这种布置显着地改善了边缘下落并且同时使边缘下降变化最小化，从而防止在正在轧制的材料的表面上发生表面缺陷并且执行有效的轧制操作。