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79 条记录 (耗时 0.013 秒)

    Method of and apparatus for continuously hot-rolling steel pieces
    14.
    发明公开
    Method of and apparatus for continuously hot-rolling steel pieces 失效
    Verfahren und Vorrichtung zum kontinuierlichen Warmwalzen von Stahlwalzgut。

    公开(公告)号：EP0135133A2

    公开(公告)日：1985-03-27

    申请号：EP84109621.7

    申请日：1984-08-13

    申请人： HITACHI, LTD.

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

    IPC分类号： B21B1/02

    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.

    摘要翻译： 一种连续钢热轧方法和装置，用于连续地将多个钢板（8,9）连续地接合，每个钢片（8,9）以预定长度保持在高温下，以便形成用于连续轧制的钢板的连续列 轧机。 该装置具有用于保持前一钢片（8）的后端和后一钢片（9）的前端的钢片保持装置（21,22）。 用于剪切所述钢片的端部的装置（23,24,25,26），同时所述端部由所述保持装置（21,22）保持; 用于将前一钢片（8）的剪切后端和后续钢件（9）的剪切前端加热到预定温度的装置（63） 一个装置（20,20b），用于沿着钢片的行进路径驱动前一个和后续的钢件中的至少一个，以将前一个钢件的加热的后端表面和加热的前端表面 后续钢片 以及承载所述设置在轧机（4）上游的所有装置的载体，用于沿待接合的钢片（8,9）的行进路径移动。 该装置有助于钢片的快速接合，并且因此钢片的连续热轧。

    Roll for rolling mill
    15.
    发明公开
    Roll for rolling mill 失效
    滚筒铣刀

    公开(公告)号：EP0043869A3

    公开(公告)日：1982-04-28

    申请号：EP80106377

    申请日：1980-10-20

    申请人： Hitachi, Ltd.

    发明人： Kajiwara, Toshiyuki ,  Nishi, Hidetoshi

    IPC分类号： B21B31/18 ,  B21B29/00 ,  B21B13/14

    CPC分类号： B21B29/00 ,  B21B27/02 ,  B21B31/18 ,  B21B37/42 ,  B21B2027/022 ,  B21B2269/08 ,  B21B2269/16

    摘要： A pair of rolls (11, 12) displaceable axially in accordance with the rolled sheet width are arranged at the upper and/or lower sides of a pair of work rolls (2,3) having a high flexural rigidity, such that the axes of the axially displaceable rolls (11, 12) an substantially in the same plane as the axes of the work rolls (2, 3), so that the shape control of the rolled sheet (1) is performed by the axial adjustment of the axially displaceable rolls (11, 12). Each axially displaceable roll (11, 12) has an axial and portion the diameter of which is gradually decreased toward the axial outer extremity with such a rate that the reduction in radius of said axial and portion within the range of 100 mm is at least 0,3 mm. Stress concentration at the displaceable roll (11, 12) end, spalling and scoring are avoided, and the shape controllability is improved considerably,

    Roll for rolling mill
    16.
    发明公开
    Roll for rolling mill 失效
    WalzefürWalzwerk。

    公开(公告)号：EP0043869A2

    公开(公告)日：1982-01-20

    申请号：EP80106377.7

    申请日：1980-10-20

    申请人： Hitachi, Ltd.

    发明人： Kajiwara, Toshiyuki ,  Nishi, Hidetoshi

    IPC分类号： B21B31/18 ,  B21B29/00 ,  B21B13/14

    CPC分类号： B21B29/00 ,  B21B27/02 ,  B21B31/18 ,  B21B37/42 ,  B21B2027/022 ,  B21B2269/08 ,  B21B2269/16

    摘要： A pair of rolls (11, 12) displaceable axially in accordance with the rolled sheet width are arranged at the upper and/or lower sides of a pair of work rolls (2,3) having a high flexural rigidity, such that the axes of the axially displaceable rolls (11, 12) an substantially in the same plane as the axes of the work rolls (2, 3), so that the shape control of the rolled sheet (1) is performed by the axial adjustment of the axially displaceable rolls (11, 12). Each axially displaceable roll (11, 12) has an axial and portion the diameter of which is gradually decreased toward the axial outer extremity with such a rate that the reduction in radius of said axial and portion within the range of 100 mm is at least 0,3 mm. Stress concentration at the displaceable roll (11, 12) end, spalling and scoring are avoided, and the shape controllability is improved considerably,

    摘要翻译： 根据轧制板宽度轴向移动的一对辊（11,12）被布置在具有高抗弯刚度的一对工作辊（2,3）的上侧和/或下侧，使得 可轴向移动的辊（11,12）基本上与工作辊（2,3）的轴线处于同一平面，从而通过轴向移动辊的轴向调节来执行轧制板（1）的形状控制 （11,12）。 每个可轴向移动的辊（11,12）具有轴向端部部分，该轴向端部部分的直径朝轴向外端逐渐减小，其速度使得所述轴向端部部分在100mm范围内的半径减小至少为0 ，3毫米。 可移动辊（11,12）处的应力集中结束，剥落和刻痕被避免，并且形状可控性显着提高。

    Rolling mill
    17.
    发明公开
    Rolling mill 无效
    轧机。

    公开(公告)号：EP0026903A1

    公开(公告)日：1981-04-15

    申请号：EP80105897.5

    申请日：1980-09-29

    申请人： Hitachi, Ltd.

    发明人： Kajiwara, Toshiyuki

    IPC分类号： B21B31/18 ,  B21B37/08

    CPC分类号： B21B13/142 ,  B21B27/02 ,  B21B31/18 ,  B21B37/42 ,  B21B2027/022 ,  B21B2269/04 ,  B21B2269/06 ,  B21B2269/16

    摘要： A rolling mill having a pair of intermediate rolls (13, 14) interposed between a pair of working rolls (1, 2) exerting a working roll bending force and a pair of backing rolls (28, 29) so that the intermediate rolls (13, 14) are axially displaced in conformity with the lateral length or width of a rolled material (3) and the intermediate roll bending force larger than the working roll bending force is exerted thereto, and the shape of the sheet (3) is controlled by adjusting the axial position of the intermediate rolls (13, 14) and by exerting the working and intermediate roll bending forces thereto.