Method for continuously hot rolling of ferrous long products
    4.
    发明公开
    Method for continuously hot rolling of ferrous long products 失效
    Verfahren und Vorrichtung zum kontinuierlichen Warmwalzen langer Stahlprodukte。

    公开(公告)号:EP0512735A2

    公开(公告)日:1992-11-11

    申请号:EP92303829.3

    申请日:1992-04-28

    Abstract: A method and apparatus for continuously hot rolling ferrous long products which employs a "post finishing" block of roll stands downstream from the finishing stands of the mill. Water boxes or other like cooling devices are preferably interposed between the last mill finishing stand and the postfinishing block. The post finishing block includes at least two reduction stands followed by at least two sizing stands. The reduction stands have an oval-round pass sequence, and the sizing stands have a round-round pass sequence. Clutches or other equivalent means are employed in the drive train to permit changes to be made between the interstand drive speed ratios of at least the reduction stands, and also between some or all of the remaining sizing stands. A fixed rolling schedule is provided for all roll stands in advance of the finishing stands. Thus, the finishing group is supplied with a first process section having a substantially constant cross sectional area and configuration. The first process section is passed through the finishing group and rolling occurs in either none, some, or all of the finishing roll stands, depending on the size of the desired end product. The product then continues through water cooling boxes to the post finishing block as a second process section. The interstand drive speed ratios of the roll stands in the post finishing block are appropriately adjusted to accommodate rolling of the second process section. The total reductions affected in the initial reduction stands of the post finishing block are well above 14%, thereby producing an increased energy level in the product sufficient to create a substantially uniform distribution of fine grains. Typically, such total initial reductions will be on the order of about 20-50%. Significantly lighter reductions on the order of 2-15% are taken in the final round-round pass sequences of the post finishing block to obtain the desired close sizing tolerances in the finished product. The time interval between the higher reduction affected in the oval-round pass sequence and the lighter reductions affected during sizing in the round-round pass sequence is such that the resulting grain size throughout the product cross section will not vary by more than 2, and in most cases by less than 1 ASTM grain size number.

    Abstract translation: 用于连续热轧含铁长产品的方法和装置,其使用轧机的“后整理”块在轧机的精轧机架的下游。 水箱或其他类似的冷却装置优选地插入在最后的轧机精加工台和后整理块之间。 后整理块包括至少两个减速机架,随后至少两个施胶机架。 还原架具有椭圆形通过顺序,并且定径架具有圆形通过顺序。 传动系中采用离合器或其他等效装置,以允许在至少减速机架之间的架间驱动速度比之间以及在一些或所有剩余的定型架之间进行改变。 在整理机架之前,为所有轧辊机架提供固定的轧制计划。 因此,整理组被提供有具有基本恒定的横截面积和构造的第一处理部分。 第一工艺段通过整理组,根据所需最终产品的尺寸,轧制发生在没有,一些或所有轧辊机架中。 产品然后通过水冷箱继续到后整理块作为第二处理部分。 适当地调整后整理块中的辊架的间隔驱动速度比,以适应第二处理部的滚动。 在后整理块的初始还原段中影响的总减少量远高于14%,从而产生足以产生基本均匀的细晶粒分布的产品中的能级增加。 通常,这种总的初始减少量约为20-50%左右。 在后整理块的最终圆形通过顺序中取出大约2-15%的显着更轻的减少量,以获得成品中所需的紧密尺寸公差。 在圆形通过顺序中,在椭圆形通过顺序中影响的较高的减小与在定径期间受影响的较轻的减少之间的时间间隔使得整个产品横截面中得到的晶粒尺寸将不会变化大于2,并且 在大多数情况下,ASTM晶粒数小于1。

    Single strand block-type rolling mill
    5.
    发明公开
    Single strand block-type rolling mill 失效
    Einadriges Walzwerk在Blockbauart。

    公开(公告)号:EP0165673A2

    公开(公告)日:1985-12-27

    申请号:EP85302801.7

    申请日:1985-04-22

    CPC classification number: B21B35/02 B21B1/18 B21B13/005

    Abstract: A single strand rolling mill has successive pairs of work rolls arranged to roll rod and bar products in a twist-free manner. The work rolls are carried on roll shafts included as part of roll packages which are detachably mounted to gear housings, and the gear housings contain intermediate drive shafts and intermeshed gears connected via line shaft segments and intermeshed bevel gears to a primary mill drive. The gear housings are carried on a base which is made up of a flat vertically upstanding structural member standing on edge and joined to an underlying base plate. The structural member extends beneath and in parallel relationship to the rolling line. Rib members extend laterally away from and are spaced along opposite sides of the structural member. The rib members are joined on edge to both the structural member and the baseplate and have upper support edges on which the gear housings are secured.

    Rolling mill roll stand
    6.
    发明公开
    Rolling mill roll stand 审中-公开
    Walzgerüst

    公开(公告)号:EP0960661A2

    公开(公告)日:1999-12-01

    申请号:EP99303926.2

    申请日:1999-05-20

    CPC classification number: B21B31/04 B21B31/10

    Abstract: A housingless roll stand (10) has a pair of work rolls (36,38) supported between bearing chocks (40,42) for rotation about parallel axes. The bearing chocks are mechanically engaged by nuts (32,34) which in turn are threadedly engaged by opposite hand screw segments on spindles (30). The spindles serve both to effect symmetrical roll parting adjustments, and to provide a short stress path loop for absorbing roll separating forces during rolling. The nuts (32,34) and associated adjusting spindles (30) are separable from the bearing chocks (40,42), thus enabling them to remain as permanent on line fixtures when making roll changes.

    Abstract translation: 无轴承辊架(10)具有支承在轴承座(40,42)之间的一对工作辊(36,38),用于围绕平行的轴线旋转。 轴承轴承座由螺母(32,34)机械接合,螺母(32,34)又与主轴(30)上的相对的手螺纹部分螺纹接合。 主轴用于实现对称的辊分离调整,并且提供用于在轧制期间吸收辊分离力的短应力路径回路。 螺母(32,34)和相关联的调节主轴(30)可与轴承座(40,42)分离,从而使其能够在进行滚动更换时保持在线固定装置上的永久性。

    High speed shear for end trimming rods and the like
    9.
    发明公开
    High speed shear for end trimming rods and the like 失效
    高速剪切割杆和类似物的端部。

    公开(公告)号:EP0659512A3

    公开(公告)日:1995-09-06

    申请号:EP94309606.5

    申请日:1994-12-21

    Abstract: Apparatus for shearing elongated products such as rods, bars and the like moving longitudinally along a path of travel (Pt). The apparatus includes a pair of constant diameter helical blades (44) mounted for rotation about axes parallel to the path of travel. The rotational orientation of the blades and the spacing between their respective axes is such that segments of the blades coact along a cutting path (Pc) parallel to the path of travel. The blades are rotated in opposite directions to thereby cause coacting segments thereof to move repetitively along the cutting path in the direction of product movement. A switch (56) diverts the products from the path of travel across the cutting path for shearing by the coacting segments of the cutting blades.

    Single strand block-type rolling mill
    10.
    发明公开
    Single strand block-type rolling mill 失效
    单股块式轧机

    公开(公告)号:EP0659493A3

    公开(公告)日:1995-08-16

    申请号:EP94309604.0

    申请日:1994-12-21

    CPC classification number: B21B35/02 B21B13/005 B21B31/06 B21B31/26

    Abstract: A single strand block-type rolling mill has pairs of oppositely inclined work rolls (16) arranged successively along a mill pass line (18) to roll rod and bar products in a twist-free manner. A planar base structure extends in parallel relationship between the mill pass line. A plurality of housings (32) are arranged seriatim along the mill pass line. The housings are secured to the base structure and have mutually overlapping portions secured to one another. Each housing includes intermediate drive components for driving a pair of roll shafts (40) carrying one of the work roll pairs, with the intermediate drive components being mechanically coupled to each other and to a common mill drive.

    Abstract translation: 单股块型轧机具有一对相对倾斜的工作轧辊(16),它们沿轧机轧制线(18)依次排列,以无捻的方式轧制轧制棒材和棒材。 平面底座结构在轧机轧制线之间以平行关系延伸。 多个壳体(32)沿着轧制线顺次排列。 壳体被固定到基部结构并且具有彼此固定的相互重叠的部分。 每个壳体包括用于驱动承载工作辊对之一的一对辊轴(40)的中间驱动部件,其中中间驱动部件彼此机械联接并且联接到普通的磨机驱动。

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