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    METHOD FOR PRODUCING STEEL H-BEAM, AND ROLLING MILL
    1.
    发明公开
    METHOD FOR PRODUCING STEEL H-BEAM, AND ROLLING MILL 审中-公开

    公开(公告)号：EP3388160A1

    公开(公告)日：2018-10-17

    申请号：EP16883696.3

    申请日：2016-11-17

    申请人： Nippon Steel & Sumitomo Metal Corporation

    发明人： YAMASHITA, Hiroshi

    IPC分类号： B21B1/08 ,  B21B1/088 ,  B21B27/02

    CPC分类号： B21B1/08 ,  B21B1/088 ,  B21B27/02

    摘要： To efficiently and stably produce an H-shaped steel product with a flange width larger than a conventional flange width, and separately shape by the same roll H-shaped steels different in flange width in the H-shaped steel product with a large flange width. A rolling mill that performs a rough rolling step is engraved with a plurality of calibers configured to shape a material to be rolled, the number of the plurality of calibers being seven or more; the plurality of calibers include a plurality of wedging calibers as calibers at a previous stage provided with projections configured to create splits vertically with respect to a width direction of the material to be rolled, and a plurality of bending calibers as calibers at a subsequent stage configured to bend flange corresponding portions of the material to be rolled formed by the wedging calibers; the wedging calibers include calibers configured to create two kinds of splits different in length; the bending calibers include calibers having dimensions according to two kinds of flange corresponding portions different in length formed in the material to be rolled in the wedging calibers; and in the bending calibers, reduction is performed in a state where end surfaces of the material to be rolled are in contact with peripheral surfaces of the calibers in shaping in at least one pass or more.

    H-SHAPED STEEL PRODUCTION METHOD AND H-SHAPED STEEL PRODUCT
    2.
    发明公开
    H-SHAPED STEEL PRODUCTION METHOD AND H-SHAPED STEEL PRODUCT 审中-公开
    H型钢生产方法和H型钢产品

    公开(公告)号：EP3272435A1

    公开(公告)日：2018-01-24

    申请号：EP16764858.3

    申请日：2016-03-10

    申请人： Nippon Steel & Sumitomo Metal Corporation

    发明人： YAMASHITA, Hiroshi

    IPC分类号： B21B27/02 ,  B21B1/088

    CPC分类号： B21B1/0886 ,  B21B1/026 ,  B21B1/088 ,  B21B27/02 ,  B21B2001/028 ,  B21B2261/02

    摘要： [Object] To produce an H-shaped steel product with a flange width larger than a conventional flange width by, in a rough rolling step using calibers in producing H-shaped steel, creating deep splits on end surfaces of a material (e.g., slab) using projections with acute-angle tip shapes, and sequentially bending flange portions formed by the splits.
    [Solution] Provided is a method for producing H-shaped steel using a slab as a material. In a rolling mill that performs a rough rolling step, a plurality of calibers to shape a material to be rolled, and a web thinning caliber to thin a web of the material to be rolled that has been shaped in the plurality of calibers are engraved, the number of the plurality of calibers being three or more. Shaping of a plurality of passes is performed on the material to be rolled in part or all of the plurality of calibers. In a first caliber and a second caliber among the plurality of calibers, projections to create splits vertically with respect to a width direction of the material to be rolled are formed. In a third caliber and subsequent calibers among the plurality of calibers, a step of sequentially bending divided parts formed by the splits is performed. The projections formed in the first caliber and the second caliber have a tip angle of 40° or less.

    摘要翻译： 本发明的目的在于通过在制造H型钢时使用口径的粗轧工序来生产法兰宽度大于传统法兰宽度的H型钢产品，从而在材料的端面（例如板坯 ）使用具有锐角尖端形状的突起，并依次弯曲由裂缝形成的凸缘部分。 [解决方案]提供一种使用板坯作为材料来制造H型钢的方法。 在进行粗轧工序的轧机上，刻制成形轧制材料的多个口径，以及对多个口径成形的被轧制材料的薄板进行薄壁化的薄板化口径， 多个口径的数量是三个或更多。 在部分或全部多个口径的待轧制材料上进行多个行程的成形。 在多个口径中的第一口径和第二口径中，形成相对于待轧制材料的宽度方向垂直地产生分裂的突起。 在多个口径中的第三口径和随后的口径中，执行顺序弯曲由分离形成的分割部分的步骤。 在第一口径和第二口径中形成的突起的顶角为40°或更小。

    CENTRIFUGALLY CAST COMPOSITE ROLL AND METHOD FOR MANUFACTURING SAME
    4.
    发明公开
    CENTRIFUGALLY CAST COMPOSITE ROLL AND METHOD FOR MANUFACTURING SAME 审中-公开
    ZENTRIFUGAL GEGOSSENE VERBUNDSTOFFWALZE UND VERFAHREN ZUR HERSTELLUNG DAVON

    公开(公告)号：EP3050638A4

    公开(公告)日：2017-05-17

    申请号：EP14849491

    申请日：2014-08-28

    申请人： HITACHI METALS LTD

    发明人： ODA NOZOMU ,  SEGAWA TAKAYUKI ,  NOZAKI YASUNORI ,  HATTORI TOSHIYUKI

    IPC分类号： B21B27/02 ,  B22D13/02 ,  C22C37/00

    CPC分类号： B21B27/02 ,  B21B27/032 ,  B22D13/02 ,  B22D13/026 ,  B22D19/16 ,  B32B15/011 ,  C22C37/00 ,  C22C37/06 ,  C22C37/08 ,  C22C37/10 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/32 ,  C22C38/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/54 ,  C22C38/56 ,  C22C38/60

    摘要： A centrifugally cast composite roll comprising an outer layer formed by a centrifugal casting method, and an inner layer made of ductile cast iron and integrally fused to the outer layer, the outer layer being made of an Fe-based alloy comprising by mass 1.3-3.7% of C, 0.3-3% of Si, 0.1-3% of Mn, 1-7% of Cr, 1-8% of Mo, at least one of 2.5-7% of V, 0.1-3% ofNb and 0.1-5% of W (V is indispensable), and 0.01-0.2% of B and/or 0.05-0.3% of S, the balance being substantially Fe and inevitable impurities, the outer layer having a structure containing no graphite; the inner layer comprising a core portion fused to the outer layer, and a drive-side shaft portion and a free-side shaft portion integrally extending from both ends of the core portion; the total amount of Cr, Mo, V, Nb and W being 0.35-2% by mass in an end portion of the drive-side shaft portion and 0.15-1.8% by mass in an end portion of the free-side shaft portion, the former being larger than the latter by 0.2% or more by mass.

    摘要翻译： 1。一种离心铸造复合辊，其特征在于，具有由离心铸造法形成的外层和由球墨铸铁构成且与所述外层一体熔接的内层，所述外层由Fe基合金构成，所述Fe基合金的质量为1.3〜3.7 ，C：0.3〜3％，Mn：0.1〜3％，Cr：1〜7％，Mo：1〜8％，V：2.5〜7％，Nb：0.1〜3％ -5％的W（V是必不可少的）和0.01-0.2％的B和/或0.05-0.3％的S，余量基本上是Fe和不可避免的杂质，外层具有不含石墨的结构; 所述内层包括熔合到所述外层的芯部分，以及从所述芯部分的两端一体地延伸的驱动侧轴部分和自由侧轴部分; 驱动侧轴部的端部的Cr，Mo，V，Nb和W的总量为0.35-2质量％，并且在自由侧轴部的端部中的质量为0.15-1.8质量％ 前者比后者大0.2质量％或更多。

    ROLL FORMING DEVICE
    5.
    发明公开
    ROLL FORMING DEVICE 审中-公开
    ROLL成型装置

    公开(公告)号：EP2987567A1

    公开(公告)日：2016-02-24

    申请号：EP14785081.2

    申请日：2014-03-07

    申请人： Toyota Shatai Kabushiki Kaisha

    发明人： TAKAMURA, Tomoyuki ,  HASHIMOTO, Keiji

    IPC分类号： B21D28/12 ,  B21D31/04

    CPC分类号： B21B27/02 ,  B21D13/045 ,  B21D28/12 ,  B21D28/36 ,  B21D31/043 ,  B21D31/046 ,  B21H7/00

    摘要： A first roll (20) and a second roll (40) of a roll forming device are provided with a plurality of stacked cutting blades (22, 122) and retainers (21, 121). The retainers (21, 121) pass through the stacked cutting blades (22, 122) and receive a first rotating shaft (16) and a second rotating shaft (18). Projections (21a, 121a) are formed on end portions of the retainers (21, 121). When the cutting blades (22, 122) are stacked, the projections (21a, 121a) control positioning operation of the cutting blades (22, 122). With this constitution, when the cutting blades (22, 122) are joined in a stacked state to the retainers (21, 121), the cutting blades (22, 122) in the stacking direction is controlled with the retainers (21, 121).

    SYSTEM ZUM WECHSELN EINER WALZE
    9.
    发明公开
    SYSTEM ZUM WECHSELN EINER WALZE 有权
    系统用于改变辊

    公开(公告)号：EP2150361A1

    公开(公告)日：2010-02-10

    申请号：EP08760445.0

    申请日：2008-06-04

    申请人： Siemens Aktiengesellschaft

    发明人： GÖGGEL, Tobias ,  HÖRMANN, Helmut

    IPC分类号： B21B31/10

    CPC分类号： B21B31/10 ,  B21B27/02 ,  B21B31/103 ,  B21B38/006 ,  B21B2261/20 ,  Y10T29/4973 ,  Y10T29/53978

    摘要： The invention relates to a system (20) for changing a roller, having a system (1) for determining parameters which characterize the identity and/or the operating state of a roller (21, 21') of an industrial plant, having at least one sensor (2, 2') arranged on the roller (B1, B2, B3, B4) for furnishing parameters, which sensor is designed in such a manner that such a furnished identity parameter of the roller (Bl, B2, B3, B4) is detectable, and having a reading device (3) which is designed for reading out detected parameters from the sensor (2, 2') without contact. The sensor (2, 2') is also designed to detect an operation state parameter of the roller (Bl, B2, B3, B4) and can be operated at a roller temperature of at least 150º C. The invention also comprises a roller changing wagon (22) on which a roller (21, 21') can be mounted in such a manner that the roller can be guided into or out of a roll stand, wherein the sensor (2, 2') is arranged on the roller (21, 21') for the purpose of furnishing and/or detecting parameters. The process security for an industrial plant can be increased by such a system.