CONTINUOUS REPETITIVE ROLLING METHOD FOR METAL STRIP
    24.
    发明公开
    CONTINUOUS REPETITIVE ROLLING METHOD FOR METAL STRIP 有权
    KONTINUIERLICHES UND SICH WIEDERHOLENDES WALZVERFAHRENFÜRMETALLSTREIFEN

    公开(公告)号:EP2255899A1

    公开(公告)日:2010-12-01

    申请号:EP09716737.3

    申请日:2009-01-15

    IPC分类号: B21B1/16 B21B1/22 B21C47/00

    摘要: A flow of rolling with a combination of asymmetric rolling (S1) and skin pass rolling (S3) is shown. Differential-speed rolling is performed as the asymmetric rolling, and a winder temporarily winds a metal strip with a collapsed plate shape by traverse winding (loose winding which allows the metal strip is wound in a zigzag manner: S2). Then, the skin pass rolling is performed, and orderly winding is performed in a coil form (S4). As shown in the flow of rolling, tandem rolling may be performed by arranging two or more rolling mills side by side so that the asymmetric rolling and the skin pass rolling are continuously performed without the traverse winding (S2) in the mid course.

    摘要翻译: 示出了具有不对称轧制(S1)和表面轧制(S3)的组合的轧制流程。 作为不对称轧制进行差速轧制,卷绕机通过横动卷绕(允许金属带以Z字形方式卷绕的松散卷绕)暂时卷绕具有塌缩板形状的金属带。 然后,进行表皮轧制,以线圈形式进行有序卷绕(S4)。 如轧制流程所示,串联轧制可以通过并列布置两台或多台轧机来进行,从而在中间过程中不用横动卷绕(S2)连续地进行不对称轧制和表面轧制。

    Verfahren zum Walzen eines Drahts und Drahtstraße
    25.
    发明公开
    Verfahren zum Walzen eines Drahts und Drahtstraße 有权
    Verfahren zum Walzen eines Drahts undDrahtstraße

    公开(公告)号:EP1837090A1

    公开(公告)日:2007-09-26

    申请号:EP07002158.9

    申请日:2007-02-01

    申请人: SMS Meer GmbH

    IPC分类号: B21B1/18

    摘要: Die Erfindung betrifft ein Verfahren zum Walzen eines Drahts (1) auf einer Drahtstraße (2), die mindestens eine Walzstraße (3), mindestens einen der Walzstraße (3) nachgeschalteten Drahtwalzblock (4) und mindestens einen dem Drahtwalzblock (4) nachgeschalteten Maßwalzblock (5) aufweist, wobei der Draht (1) in dem Maßwalzblock (5) auf sein Endmaß gewalzt wird und wobei die Walzstraße (3), der Drahtwalzblock (4) und der Maßwalzblock (5) jeweils mindestens zwei Walzgerüste (6, 7, 8) aufweisen. Um den apparativen Aufbau der Drahtwalzstraße zu vereinfachen, ist erfindungsgemäß vorgesehen, dass der Draht (1) im Maßwalzblock (5) gewalzt wird, wobei mindestens drei Walzgerüste (8a, 8b, 8c, 8d) des Maßwalzblocks (5) relativ zueinander ein festes Verhältnis der Walzspalte (s) aufrecht erhalten, und dass die Walzspalte (s) der Walzgerüste (6, 7) in der Walzstraße (3) und/oder in dem Drahtwalzblock (4) so eingestellt werden, dass der Draht (1) unmittelbar vor (9) dem Maßwalzblock (5) einen vorgegebenen Durchmesser (d) aufweist. Des weiteren betrifft die Erfindung eine Drahtstraße, insbesondere zur Durchführung dieses Verfahrens.

    摘要翻译: 在具有至少一个辊链(3)的辊磨机(2)上轧制钢丝(1)的方法,连接到所述辊链的至少一个钢丝滚动块(4)和至少一个测量辊块(5) 连接到钢丝滚动块(4)。 块(4)和(5)各自具有至少2-辊架(6,7,8)。 块(5)中的3辊架保持辊间隙相对于彼此的固定比率。 轧辊(3)的辊架(6,7)中的轧辊间隙被选择成使得焊丝在块(5)的上游具有预定直径。

    DUPLEX COLD ROLLING LINE
    26.
    发明公开
    DUPLEX COLD ROLLING LINE 审中-公开
    双面冷辗压线

    公开(公告)号:EP3296032A1

    公开(公告)日:2018-03-21

    申请号:EP17185335.1

    申请日:2017-08-08

    IPC分类号: B21B1/28 C21D8/02

    摘要: A duplex cold rolling line (1) includes a feeding unit (2), a first rolling unit (3), a furnace and descalingunit (4), apicklingunit (5), a second rolling unit (7) and an exit unit (8). The feeding unit (2) is adapted to unroll a hot-rolled coil to form an unrolled steel strip. The first rolling unit (3) includes at least two juxtaposed first rolling machines (31) adapted to perform a first-pass rolling operation on the unrolled steel strip. The furnace and descaling unit (4) is adapted to perform an annealing and descaling operation on the unrolled steel strip after completion of the first-pass rolling operation. The pickling unit (5) is adapted to perform a pickling operation on the unrolled steel strip after completion of the annealing and descaling operation. The second rolling unit (7) includes five juxtaposed second rolling machines (71) adapted to perform a second-pass rolling operation on the unrolled steel strip. The exit unit (8) is adapted to roll the unrolled steel strip to form a cold-rolled coil.

    摘要翻译: 本发明提供一种双重冷轧生产线(1),其包括供给单元(2),第一轧制单元(3),炉和氧化皮去除单元(4),定位单元(5),第二轧制单元(7)和出口单元 )。 进料单元(2)适合于展开热轧卷材以形成展开的钢带。 第一轧制单元(3)包括至少两个并置的第一轧制机(31),其适于对展开的钢带执行第一轧制操作。 炉子和除鳞单元(4)适于在完成第一道次轧制操作之后对展开的钢带进行退火和除鳞操作。 酸洗单元(5)适于在完成退火和除垢操作之后对展开的钢带执行酸洗操作。 第二轧制单元(7)包括五个并置的第二轧机(71),其适于对展开的钢带执行第二轧制操作。 出口单元(8)适于将展开的钢带轧制以形成冷轧卷。

    VERFAHREN UND WALZGERÜST ZUM KALTWALZEN VON WALZGUT
    28.
    发明公开
    VERFAHREN UND WALZGERÜST ZUM KALTWALZEN VON WALZGUT 有权
    VERFAHREN UNDWALZGERÜSTZUM KALTWALZEN VON WALZGUT

    公开(公告)号:EP2988884A1

    公开(公告)日:2016-03-02

    申请号:EP14719338.7

    申请日:2014-04-25

    申请人: SMS group GmbH

    IPC分类号: B21B1/22 B21B35/14

    摘要: The invention relates to a method and a rolling stand (100) for cold rolling rolled stock. The rolling stand (100) comprises at least one upper and one lower backup roll (110-1, 110-2) and also an upper and a lower work roll (120-1, 120-2), which define a roll gap (128). Optionally, a lower and an upper intermediate roll (130-1, 130-2) may also be provided between the work rolls and the backup rolls. In order to ensure an absolutely equal circumferential speed of the upper and lower work rolls when cold rolling in skin-pass mode, it is proposed according to the invention to decouple the upper or lower work roll from its associated drive device.

    摘要翻译: 本发明涉及一种用于冷轧卷材的方法和轧机机架(100)。 轧机机架(100)包括至少一个上部和一个下部支承辊(110-1,110-2)以及上部和下部工作辊(120-1,120-2),它们限定辊隙 128)。 可选地,还可以在工作辊和支承辊之间设置下部和上部中间辊(130-1,130-2)。 为了确保在皮肤通过模式下冷轧时上,下工作辊的圆周速度绝对相等,根据本发明提出将上工作辊或下工作辊与其关联的驱动装置分离。

    ROLLING METHOD FOR FLAT PRODUCTS AND RELATIVE ROLLING LINE
    29.
    发明公开
    ROLLING METHOD FOR FLAT PRODUCTS AND RELATIVE ROLLING LINE 有权
    轧制方法适用于平面产品和相关轧机

    公开(公告)号:EP2580002A2

    公开(公告)日:2013-04-17

    申请号:EP11749507.7

    申请日:2011-06-14

    IPC分类号: B21B1/46

    摘要: Rolling method for the production of flat products, such as metal strip, which provides a production step of a thin slab with a thickness comprised between 30 and 90 mm, preferably between 35 and 70 mm, a temperature maintenance and/or possible heating step of the slab to be sent for rolling, and a rolling step with multiple passes performed in a reversing rolling mill (14) comprising at least a reversing rolling stand ( 15), in which at least a winding reel furnace (16a) is also present upstream of the stand (15) and a winding reel furnace (16b) downstream of the stand (15), a winding step also being provided downstream of the rolling in at least a coiler (19a, 19b) to form a relative coil of strip of a defined weight, comprised between 20 and 30 tons, and a cooling step of the strip being provided between the reversing rolling mill (14) and said at least one coiler (19a, 19b). The method provides that the thin slab is disposed, for example, sheared to size, upstream of the maintenance and/or possible heating step in order to form a segment of slab having a length equivalent, in weight, greater than that of a coil, and that, already after the first rolling pass in the reversing rolling mill (14), the thickness of the segment of slab is reduced to a value in the range of 20-25 mm so as to render it windable on the reel furnace (16b) downstream of the stand (15).

    PROCESS FOR PRODUCTION OF SEAMLESS METAL PIPE BY COLD ROLLING
    30.
    发明公开
    PROCESS FOR PRODUCTION OF SEAMLESS METAL PIPE BY COLD ROLLING 有权
    VERFAHREN ZUR HERSTELLUNG EINES NAHTLOSEN METALLROHRS DURCH KALTWALZEN

    公开(公告)号:EP2390016A1

    公开(公告)日:2011-11-30

    申请号:EP09834667.9

    申请日:2009-11-25

    发明人: HAYASHI Chihiro

    IPC分类号: B21B21/00 B21B23/00

    摘要: In cold rolling of a seamless metallic tube with a cold pilger mill, when a reduction ratio of an outside diameter becomes excessive in comparison to a reduction ratio of a wall thickness, strain in a circumferential direction on flange regions becomes excessive. As a result, compressive stress in a circumferential direction becomes excessive, so that wrinkle imperfections are generated inside a tube and folded on groove bottom regions to become folded defects. This process is repeated to be developed into inside defects. When a hollow shell is produced by the Mannesmann-mandrel process instead of the extrusion process, inside wrinkle imperfections are generated with a sizing mill (a stretch reducer or a sizer) at a stage of hollow shell. Since the inside wrinkle imperfections further grow in cold rolling, it is necessary to pay attention thereto. In consideration of these, (a reduction ratio of an outside diameter/a reduction ratio of a wall thickness both in a cold pilger mill) is set to not more than 1/2. It is, thereby, possible to obtain a high-quality seamless metallic tube, inside defects thereof being suppressed, produced by cold rolling.

    摘要翻译: 在使用冷打包机的无缝金属管进行冷轧时,与壁厚的减少率相比,当外径的减少率变得过大时,凸缘区域周向的变形过大。 结果,圆周方向上的压缩应力变得过大,从而在管内产生褶皱缺陷,并且折叠在槽底部区域上成为折叠缺陷。 这个过程重复发展成内部缺陷。 当通过曼内斯曼 - 心轴工艺而不是挤出工艺生产中空壳体时,在中空壳体阶段通过上浆机(拉伸减速机或分级机)产生皱纹缺陷。 由于内部皱纹缺陷在冷轧中进一步增长,因此需要注意。 考虑到这些(冷吹瓶机的壁厚的外径/压下率的减少率)设定为不大于1/2。 从而可以获得通过冷轧制造的内部缺陷被抑制的高品质无缝金属管。