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    Rolling mill and rolling method
    1.
    发明公开
    Rolling mill and rolling method 失效
    轧制和轧制方法

    公开(公告)号：EP0534602A3

    公开(公告)日：1993-07-28

    申请号：EP92307486.8

    申请日：1992-08-14

    申请人： HITACHI, LTD. ,  HITACHI NUCLEAR ENGINEERING CO., LTD.

    发明人： Takakura, Yoshio ,  Kajiwara, Toshiyuki ,  Shiraiwa, Hiroyuki ,  Yasuda, Kenichi ,  Hirama, Yukio

    IPC分类号： B21B13/14 ,  B21B37/00

    CPC分类号： B21B37/38 ,  B21B13/145

    摘要： A rolling mill has a work roll (1), a back-up roll (2) for supporting the work roll (1) vertically and driving it. A plurality of horizontal support rollers (4,6) contact the work roll at barrel diameter outside the rolling region and at both horizontal sides of the work roll and act to fix the position of the work roll in both horizontal directions during rolling and to oppose horizontal rolling forces. In order to reduce the bending of the work roll during rolling, there are provided means for applying horizontal counterbending forces to the work roll comprising members (5,7) e.g. rollers, contacting the work roll at locations axially further from the rolling region than the support rollers (4,6) and actuator means (14) for urging the members (5,7) against the work roll. The counterbending forces being in the same direction as the net horizontal force applied to said work roll by said back-up roll and the material being rolled. Preferably at least one condition of said work roll is sensed during rolling, and there are control means acting during rolling to control the counterbending forces in dependence on the sensed condition.

    Rolling mill and rolling method
    2.
    发明公开
    Rolling mill and rolling method 失效
    Walzwerk und Walzverfahren。

    公开(公告)号：EP0534602A2

    公开(公告)日：1993-03-31

    申请号：EP92307486.8

    申请日：1992-08-14

    申请人： HITACHI, LTD. ,  HITACHI NUCLEAR ENGINEERING CO., LTD.

    发明人： Takakura, Yoshio ,  Kajiwara, Toshiyuki ,  Shiraiwa, Hiroyuki ,  Yasuda, Kenichi ,  Hirama, Yukio

    IPC分类号： B21B13/14 ,  B21B37/00

    CPC分类号： B21B37/38 ,  B21B13/145

    摘要： A rolling mill has a work roll (1), a back-up roll (2) for supporting the work roll (1) vertically and driving it. A plurality of horizontal support rollers (4,6) contact the work roll at barrel diameter outside the rolling region and at both horizontal sides of the work roll and act to fix the position of the work roll in both horizontal directions during rolling and to oppose horizontal rolling forces. In order to reduce the bending of the work roll during rolling, there are provided means for applying horizontal counterbending forces to the work roll comprising members (5,7) e.g. rollers, contacting the work roll at locations axially further from the rolling region than the support rollers (4,6) and actuator means (14) for urging the members (5,7) against the work roll. The counterbending forces being in the same direction as the net horizontal force applied to said work roll by said back-up roll and the material being rolled. Preferably at least one condition of said work roll is sensed during rolling, and there are control means acting during rolling to control the counterbending forces in dependence on the sensed condition.

    摘要翻译： 轧机具有工作辊（1），用于垂直支撑工作辊（1）并驱动的支撑辊（2）。 多个水平支撑辊（4,6）在轧制区域外侧和工作辊的两个水平边处以筒体直径接触工作辊，并且用于在轧制过程中在两个水平方向上固定工作辊的位置并且对置 水平滚动力。 为了减少轧制过程中的工作辊的弯曲，提供了用于将水平的反作用力施加到包括构件（5,7）的工作辊的装置。 辊子，在与滚动区域轴向更远的位置处的工作辊比用于将构件（5,7）推靠在工作辊上的支撑辊（4,6）和致动器装置（14）接触。 反作用力与由所述支撑辊和被轧材料施加到所述工作辊的净水平力方向相同。 优选地，在轧制期间感测到所述工作轧辊的至少一个状态，并且存在在轧制期间作用的控制装置，以根据感测到的状况控制平衡力。

    Method and equipment for rolling and connecting steel bands
    7.
    发明公开
    Method and equipment for rolling and connecting steel bands 失效
    裁剪装置和裁剪剪刀设备

    公开(公告)号：EP0490333A3

    公开(公告)日：1992-09-30

    申请号：EP91121155.5

    申请日：1991-12-10

    申请人： HITACHI, LTD.

    发明人： Kinose, Ryohei ,  Kajiwara, Toshiyuki ,  Yoshimura, Yasutsugu

    IPC分类号： B23D25/12

    CPC分类号： B21B15/0085 ,  B21B15/0007 ,  B23D25/12

    摘要： In a crop shear apparatus (26) disposed in a conveyance passage in which band steel (12) is conveyed from a first rolling mill to a second rolling mill of hot rolling equipment, the crop shear apparatus (26) including: at least one shear blade (50, 52) for shearing the band steel (12) in a widthwise direction conveyed from the first rolling mill to the second rolling mill; and a supporting mechanism for movably supporting the at least one shear blades (50, 52) in the widthwise direction of the band steel (12), wherein the at least one shear blade (50, 52) is present in a non-linear manner along the widthwise direction of the band steel (12) such that a projection quantity of the band steel (12) in the conveyance direction at a sheared end portion can be adjusted when the band steel (12) is sheared in a state where the blade (50, 52) has been moved in the widthwise direction of the band steel (12) and the shear blade (50, 52) is formed into a non-mirror-symmetrical shape on two side portions of a portion which corresponds to the center in the widthwise direction of the band steel (12), a projection quantity in at least one of the sheared front and rear end portions of the band steel (12) can be adjusted independently of a width of the band steel (12).

    Continuous hot strip rolling system and method thereof
    8.
    发明公开
    Continuous hot strip rolling system and method thereof 失效
    Kontinuierliches Warmband-Walzsystem。

    公开(公告)号：EP0484882A1

    公开(公告)日：1992-05-13

    申请号：EP91118839.9

    申请日：1991-11-05

    申请人： HITACHI, LTD.

    发明人： Kajiwara, Toshiyuki ,  Nishino, Tadashi ,  Miyakozawa, Keiji ,  Kouga, Masaaki

    IPC分类号： B21B1/26 ,  B21B15/00 ,  B21B45/08

    CPC分类号： B21B15/0085 ,  B21B1/26 ,  B21B9/00 ,  B21B13/02 ,  B21B45/08 ,  B21B2013/021 ,  B21B2265/10 ,  Y10T29/4544

    摘要： In a continuous hot strip rolling system in which bars are joined between a roughing train (1) and a finishing train (2) for continuous rolling, the roughing train (1) includes two two-high twin-roll arranged stands (3,4) each having two pairs of work rolls. The four two-high mills provided by the two twin-roll arranged stands (3,4) including four pairs of work rolls are disposed close to each other so as to provide a tandem rolling in which a material to be rolled is rolled simultaneously by the two adjacent mills. A slab (22) having a thickness of 200 to 240 mm is rolled by the two twin-roll arranged stands (3,4) to obtain a bar of about 80 mm. A width press (9) is provided near the entrance of the No. 1 stand. A descaling device (16,17) is provided at the entrance of each of the two stands (3,4). The descaling device (16,17) has a nozzle (30) which is movable in the direction transverse to the direction of travel of the material to be rolled. A non-driven roll edger (18,19) is provided at the exit of each of the two stands (3,4). Thus, generation of camber in the roughing rolling process can be reduced, and stable joining continuous rolling can be conducted. Furthermore, the overall length of the system can be reduced, and reduction in the bar temperature, which occurs until the bar reaches the joining position, can be lessened. Rational bar joining can be conducted.

    摘要翻译： 在粗轧机（1）和用于连续轧制的精轧机（2）之间连接棒的连续热轧带钢轧制系统中，粗轧机组（1）包括两个两高双辊轧机（3,4） ）每个都有两对工作辊。 由包括四对工作辊的两个双辊布置的支架（3,4）提供的四个两辊轧机彼此靠近地设置，以便提供串联轧制，其中待轧材料同时轧制 两个相邻的工厂。 通过两个双辊布置的支架（3,4）卷起厚度为200至240mm的板坯（22），以获得约80mm的棒材。 在1号机架的入口附近设置宽度按压（9）。 在两个支架（3,4）的每个的入口处设置除垢装置（16,17）。 除垢装置（16,17）具有可沿与待轧材料的行进方向横切的方向移动的喷嘴（30）。 在两个支架（3,4）的每一个的出口处提供非驱动的卷边机（18,19）。 因此，可以减少粗轧过程中的弯度的产生，并且可以进行稳定的接合连续轧制。 此外，可以减小系统的总长度，并且可以减少直到杆到达接合位置之前发生的棒温度的降低。 可以进行理性酒吧加盟。

    Five-high rolling mill, multi high rolling mill skinpass rolling mill, and rolling method of multi-high rolling mill
    10.
    发明公开
    Five-high rolling mill, multi high rolling mill skinpass rolling mill, and rolling method of multi-high rolling mill 失效
    Fünfwalzen-Walzwerk，Mehrwalzen-Walzwerk，Nachwalzwerk und Walzverfahren eines Mehrwalzen-Walzwerkes。

    公开(公告)号：EP0400568A2

    公开(公告)日：1990-12-05

    申请号：EP90110143.6

    申请日：1990-05-29

    申请人： HITACHI, LTD.

    发明人： Takakura, Yoshio ,  Kajiwara, Toshiyuki

    IPC分类号： B21B13/14 ,  B21B37/00

    CPC分类号： B21B13/14 ,  B21B3/00 ,  B21B37/38 ,  B21B2013/026

    摘要： A five-high rolling mill includes upper and lower work rolls (1,2) of substantially the same diameter; upper and lower backup rolls (3,4) supporting the upper and lower work rolls (1,2) and having a larger diameter than that of the work rolls; an intermediate roll (5) located between one of the upper and lower work rolls and the associated backup roll and having a diameter larger than that of the work roll and smaller than that of the backup roll and a drum length larger than the maximum sheet width of a rolled material (6); work roll bending devices (10,11,12) provided on the respective roll ends of the upper and lower work rolls (1,2); and intermediate roll bending devices (13) provided on the roll ends of the intermediate roll (5).
    A skinpass rolling mill includes upper and lower work rolls (1,2) of substantially the same and large diameter; upper and lower backup rolls (3,4) supporting the work rolls (1,2), respectively; an intermediate roll (5) located between the upper work roll (1) and the upper backup roll (3) and having a diameter within a range between the diameters of the upper rolls; roll bending devices respectively provided on the roll ends of the intermediate roll (5); and roll bending devices respectively provided on the roll ends of the upper and lower work rolls (1,2), wherein the intermediate roll (5) has a larger drum length than the maximum sheet width of a rolled material (6) and smaller than the drum length of the work roll, and the roll bending devices for the lower work roll (2) are at least provided with a decrease bender mechanism.
    A multi-high rolling mill includes upper and lower work rolls (1,2) of substantially the same diameter and also a certain number of supporting rolls and a different number of supporting rolls for respectively supporting the work rolls (1,2) so that sections of the rolling mill above and below a rolled material (6) have sets of the rolls in different numbers; roll bending devices (13) installed on the supporting roll (5) directly supporting the work roll (1) in one of the roll sets having the larger number of the rolls; and roll bending devices (10,11) installed on the respective work rolls (1,2) of the upper and lower roll sets, wherein the supporting roll (5) in the one roll set having the larger number of the rolls, the work roll (1) in the roll set, and the work roll (2) in the other roll set having the smaller number of the rolls are controlled with control degrees of values gradually increasing in this order.
    A rolling method in a multi-high rolling mill is applied to a multi-high rolling mill including upper and lower work rolls of substantially the same diameter, upper and lower backup rolls supporting the work rolls, respectively, and an intermediate roll located between one of the upper and lower work rolls and the associated backup roll, wherein roll bending devices installed on the intermediate roll and roll bending devices installed on the work roll in the roll set where the intermediate roll is disposed are all actuated to control a composite sheet of a rolled material over its entire width, and roll bending devices installed on the work roll which is directly supported by the backup roll are actuated to control the sheet crown of the rolled material at its side end portions, thereby performing both the composite shape control of the rolled material and the control of the widths of the side end portions of the rolled material which are not to be rolled.

    摘要翻译： 五辊轧机包括大致相同直径的上下工作辊; 上支承辊和下支撑辊支撑上下工作辊并具有比工作辊的直径更大的直径; 位于上下工作辊之一和相关支撑辊之间的中间辊，其直径大于工作辊的直径，并且小于支承辊的直径，并且鼓长大于轧制的最大板宽 材料; 工作辊弯曲装置，设置在上下工作辊的各个辊端上; 以及设置在中间辊的辊端上的中间辊弯曲装置。 皮带式轧机包括大致相同且较大直径的上下工作辊; 分别支撑工作辊的上下支撑辊; 位于上工作辊和上支承辊之间的中间辊，其直径在上辊的直径之间的范围内; 分别设置在中间辊的辊端上的辊弯曲装置; 以及分别设置在上下工作辊的辊端上的辊弯曲装置，其中中间辊具有比轧制材料的最大片材宽度更大的鼓长度并且小于工作辊的鼓长度，并且辊 用于下工作辊的弯曲装置至少设置有减少弯曲机构。 多辊轧机包括大致相同直径的上下工作辊，并且还具有一定数量的支承辊和不同数量的支撑辊，用于分别支撑工作辊，使轧制机的上部和下部的轧制部分 材料有不同数量的卷组; 安装在支撑辊上的辊弯曲装置，其中一个辊组具有较大数量的辊直接支撑工作辊; 以及安装在上下辊组的各个工作辊上的辊弯装置，其中，具有较多数量的辊的一个辊组中的支撑辊，辊组中的工作辊和另一个辊中的工作辊 具有较少数量的辊的辊组以按顺序逐渐增加的控制度控制。 将多辊轧机中的轧制方法应用于包括分别具有相同直径的上下工作辊的多辊轧机，上下工作轧辊分别支承工作轧辊和上下工作轧辊，中间轧辊位于一 的上下工作辊和相关的支承辊，其中安装在安装在设置有中间辊的辊组中的工作辊上的中间辊和辊弯曲装置上的辊弯曲装置都被致动以控制复合片 在其整个宽度上的轧制材料和安装在由支承辊直接支撑的工作辊上的辊弯曲装置被致动以控制其侧端部处的轧制材料的板顶，由此执行复合形状控制 轧制材料和轧制材料的不被轧制的侧端部的宽度的控制。