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79 条记录 (耗时 0.019 秒)

    A cold rolling mill and a rolling method
    32.
    发明公开
    A cold rolling mill and a rolling method 审中-公开
    Kaltwalzwerk und Walzverfahren

    公开(公告)号：EP1184096A2

    公开(公告)日：2002-03-06

    申请号：EP01115651.0

    申请日：2001-07-03

    申请人： Hitachi, Ltd.

    发明人： Kobayashi, Yujirou ,  Kajiwara, Toshiyuki ,  Nyui, Tatsuaki ,  Kikuchi, Yuuji ,  Yoshimura, Yasutsugu ,  Yamada, Shigekazu

    IPC分类号： B21B37/28

    CPC分类号： B21B37/28 ,  B21B13/023 ,  B21B13/142 ,  B21B27/02 ,  B21B31/185 ,  B21B37/38 ,  B21B37/40 ,  B21B37/42 ,  B21B2013/025 ,  B21B2013/028 ,  B21B2027/022

    摘要： The present invention controls the ever-changing thermal crowns to give good strip shapes during rolling without causing any flaws in the rolled surfaces and with quick responses to ever-changing thermal crowns. A 6-high rolling mill in accordance with the present invention wherein each of the working rolls 2 which are equipped with a shifting means has a locally gradually-thickened-toward-end part (or a local concave crown 2a) on one end of the roll, the working rolls 2 are disposed so that the locally gradually-thickened-toward-end parts of the working rolls 2 may be vertically symmetrically with a point, a decremental bender lob which works to narrow the gap between the working rolls is provided as a first shape control means, both the local concave crowns 2a and the roll bender lob are used to control thermal crowns, and an incremental bender 11a which controls bending of the intermediate rolls 3 is provided as a second shape control means which controls so that the center of a strip may have a concave crown.

    摘要翻译： 本发明控制不断变化的热冠，以在轧制过程中产生良好的带状，而不会在轧制表面中产生任何缺陷，并且对不断变化的热冠进行快速响应。 根据本发明的6高速轧机，其中装有移动装置的每个工作辊2在其一端具有局部逐渐增厚的朝向端部（或局部凹冠2a） 工作辊2被设置成使得工作辊2的局部逐渐增厚的端部朝向一个点垂直对称，作用于使工作辊之间的间隙变窄的减小弯曲器凸起设置为 使用第一形状控制装置，局部凹冠2a和辊弯曲部分两者都用于控制热冠，并且设置控制中间辊3的弯曲的增量弯曲机11a作为第二形状控制装置，其被控制成使得 条的中心可具有凹冠。

    Rolling mill, rolling method and rolling mill system
    35.
    发明公开
    Rolling mill, rolling method and rolling mill system 失效
    轧制机，轧制方法和轧制机系统

    公开(公告)号：EP0553480A3

    公开(公告)日：1993-11-03

    申请号：EP92121699.0

    申请日：1992-12-21

    申请人： HITACHI, LTD.

    发明人： Kajiwara, Toshiyuki ,  Ochiai, Tsuneo ,  Nishi, Hidetoshi

    IPC分类号： B21B13/02 ,  B21B31/02 ,  B21B13/00

    CPC分类号： B21B31/02 ,  B21B13/02 ,  B21B13/023 ,  B21B2003/001 ,  B21B2013/021

    摘要： In a rolling mill comprising upper and lower work rolls (1,2) crossed each other to perform strip crown control, a straight line (10,14) connecting the center (12) of an operation side screwdown screw (8a) and the center (13) of a drive side screwdown screw (8b) is inclined relative to a line (7) perpendicular to the rolling direction. A cross angle ϑ to be controlled is changed in opposite plus and minus directions about the straight line (10;14) connecting both the screwdown centers (12;13). A large extent of strip crown control can be achieved with a smaller cross deviation than usual in the prior art, thereby permitting omission of an equalizer beam. Further, change in the extent by which strip crown is varied upon control with respect to the cross angle becomes substantially linear and hence control is more easily conducted. Since the cross angle 2ϑ between the two work rolls is larger than 2°, the transition temperature is not changed and uniformity in quality can be ensured.

    Rolling mill and rolling method
    36.
    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
    37.
    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。

    Rolling mill and rolling method
    39.
    发明公开
    Rolling mill and rolling method 失效
    Walzwerk und Walzverfahren。

    公开(公告)号：EP0416880A2

    公开(公告)日：1991-03-13

    申请号：EP90309678.2

    申请日：1990-09-04

    申请人： HITACHI, LTD.

    发明人： Kobayashi, Kazuo ,  Kajiwara, Toshiyuki ,  Sakanaka, Takao ,  Mitsui, Hiromitsu ,  Yasuda, Kenichi

    IPC分类号： B21B13/14

    CPC分类号： B21B13/145 ,  B21B1/40 ,  B21B29/00 ,  B21B2031/206

    摘要： A rolling mill for rolling metal strip (11) moving in a horizontal rolling direction, has work rolls (1) which engage the strip and are supported vertically by backup rolls (2) through which drive is applied. The work rolls (1) are supported in the horizontal rolling direction by support rollers (4) contacting them at locations confined to intermediate regions between the work regions and bearings (8). The work rolls are shiftable in the horizontal rolling direction. To provide control of the horizontal forces during rolling, there are position control means (5,7) for the support rollers operable to move and locate the support rollers so as to shift the work rolls (1) to a predetermined location at which the vertical axial plane of the work rolls (1) is offset in the horizontal rolling direction from the vertical axial plane of the backup rolls (2). The support rollers (4) maintain the work rolls at the predetermined location during rolling.

    摘要翻译： 用于在水平轧制方向上移动的轧制金属带（11）的轧机具有接合带材的工作轧辊（1），并且通过其被施加驱动器的支承辊（2）垂直地支撑。 工作辊（1）通过支撑辊（4）在水平轧制方向上被支撑在与工件区域和轴承（8）之间的中间区域限定的位置处。 工作辊可在水平轧制方向上移动。 为了提供轧制期间的水平力的控制，存在用于支撑辊的位置控制装置（5,7），其可操作地移动和定位支撑辊，以便将工作辊（1）移动到垂直 工作辊（1）的轴向平面在水平轧制方向上与支承辊（2）的垂直轴向平面偏移。 支撑辊（4）在轧制期间将工作辊保持在预定位置。

    Method of and apparatus for continuously hot-rolling steel pieces
    40.
    发明公开
    Method of and apparatus for continuously hot-rolling steel pieces 失效
    连续热轧钢板的方法和装置

    公开(公告)号：EP0135133A3

    公开(公告)日：1987-01-21

    申请号：EP84109621

    申请日：1984-08-13

    申请人： HITACHI, LTD.

    发明人： Kajiwara, Toshiyuki ,  Kimura, Tomoaki ,  Nihei, Mitsuo

    IPC分类号： B21B01/02

    CPC分类号： B23K13/00 ,  B21B15/0085

    摘要： A continuous steel hot-rolling method and apparatus for successively bonding a plurality of steel pieces (8,9) each prepared in a predetermined length and maintained at a high temperature so as to form a continuous train of the steel pieces for a continuous rolling by a rolling mill. The apparatus has a steel piece holding device (21,22) for holding the trailing end of a preceding steel piece (8) and the leading end of a succeeding steel piece (9); a device (23,24,25,26) for shearing the ends of the steel pieces while the ends are held by the holding device (21,22); a device (63) for heating the sheared trailing end of the preceding steel piece (8) and the sheared leading end of the succeeding steel piece (9) up to a predetermined temperature; a device (20,20b) for driving at - least one of the preceding and following steel pieces along the path of travel of the steel pieces to press and bond the heated trailing end surface of the preceding steel piece and the heated leading end surface of the succeeding steel piece; and a carrier carrying all the devices mentioned and disposed upstream of the rolling mill (4) for movement along the path of travel of the steel pieces (8,9) to be bonded. The arrangement facilitates quick bonding of the steel pieces and thus continuous hot-rolling of the steel pieces.