公开(公告)号：US4404832A

公开(公告)日：1983-09-20

申请号：US348034

申请日：1982-02-11

申请人： Gerd Pfeiffer ,  Horst Biller ,  Manfred Bellmann ,  Karl Oberem ,  Alfred Lampe ,  Hermann-Josef Frentzen

发明人： Gerd Pfeiffer ,  Horst Biller ,  Manfred Bellmann ,  Karl Oberem ,  Alfred Lampe ,  Hermann-Josef Frentzen

IPC分类号： B21B17/02 ,  B21B17/04

CPC分类号： B21B17/04

摘要： It was discovered that a rolling mandrel holding a hollow which is rolled in a multistrand mill should be advanced in a particular manner that relates to the stretching the hollow undergoes in the first and second stand, as well as to the speed of the unrolled hollow. A velocity profile has been developed accordingly.

摘要翻译： 已经发现，保持在多级轧机中轧制的中空部的轧制心轴应以与在第一和第二台架中经历的中空的拉伸以及未卷绕的中空的速度有关的特定方式前进。 相应地开发了速度曲线。

公开(公告)号：US4848124A

公开(公告)日：1989-07-18

申请号：US173139

申请日：1988-03-24

申请人： Horst Biller ,  Manfred Bellmann ,  Wilhelm Nickel ,  Rolf Kuemmerling

发明人： Horst Biller ,  Manfred Bellmann ,  Wilhelm Nickel ,  Rolf Kuemmerling

IPC分类号： B21B19/08 ,  B21B19/04

CPC分类号： B21B19/04

摘要： Seamless tubing and pipes are made from solid rounds with a diameter not exceeding 0.8 of the diameter of the tubing or pipe to be made; the method includes the steps of piercing the solid with a mandrel such that a conical widening angle at the end of piercing has a particular value; a smoothing step is provided downstream from the piercing also with a particular cone angle; and between the piercing and the smoothing of the now pierced hollow is widened under reduction of the wall thickness at a conical angle of widening that is larger (blunter) than the widening angle of piercing and the particular cone angle.

摘要翻译： 无缝的管道和管道由直径不超过要制造的管道或管道直径的0.8的实心圆制成; 该方法包括以下步骤：用心轴刺穿固体，使得穿孔结束时的锥形加宽角具有特定值; 在穿孔的下游还具有特定的锥角提供平滑步骤; 并且在现在穿孔的中空部的穿孔和平滑之间在壁厚度减小的情况下以比穿孔的加宽角和特定锥角更大（襟翼）的锥形角度加宽。

公开(公告)号：US5115656A

公开(公告)日：1992-05-26

申请号：US665259

申请日：1991-03-06

申请人： Rolf Kummerling ,  Manfred Bellmann ,  Horst Biller

发明人： Rolf Kummerling ,  Manfred Bellmann ,  Horst Biller

IPC分类号： B21B19/02 ,  B21B19/04 ,  B21B19/10

CPC分类号： B21B19/10

摘要： A method of manufacturing seamless pipes having medium-thick or thin walls from an elongated hollow body of limited length which is reshaped by rolling to the desired final dimension, as well as a rolling apparatus for the carrying out of the method. This method of manufacturing seamless pipes having medium-thick or thin walls from an elongated hollow body is characterized by the fact that, with only one rolling pass the diameter of the hollow body is significantly reduced and by using an inner tool the inner surface is smoothed with only a slight change in wall thickness. Further, this method allows for the rolling of the axis of the hollow body to align with the axis of rolling. The rolling apparatus includes an inner tool which cooperates with two rolls to reduce the diameter of the pipe to a desired final dimension, the two rolls each having an inlet part, a feed part, a reducing part inclined at an angle within the range of more than 2.degree. and up to 10.degree. and adjoining same, with a transition in the form of a circular arc, and a substantially cylindrical reeler with a difference angle to the working part of the inner tool within the range of 0.degree. to 1.degree., followed by an outlet part.

摘要翻译： 一种由具有中等厚度或薄壁的无缝管制造方法，所述无缝管由具有限定长度的细长型中空体通过轧制至所需最终尺寸而重新成型，以及用于实施所述方法的轧制设备。 这种从细长的中空体制造具有中厚壁或薄壁的无缝管的方法的特征在于，仅通过一次轧制，中空体的直径显着减小，并且通过使用内部工具使内表面平滑 只有轻微的壁厚变化。 此外，该方法允许中空体的轴线的滚动与轧制轴线对齐。 滚动装置包括与两个辊配合以将管的直径减小到期望的最终尺寸的内部工具，每个辊具有入口部分，进给部分，在更多的范围内倾斜的减小部分 超过2度且最高10度并且相邻，具有圆弧形状的过渡，以及与内部工具的工作部分具有不同角度的大致圆柱形的卷取机，在0°至1°的范围内， 其次是出口部分。

公开(公告)号：US4099402A

公开(公告)日：1978-07-11

申请号：US697976

申请日：1976-06-21

申请人： Horst Biller

发明人： Horst Biller

IPC分类号： B21B17/14

CPC分类号： B21B17/14

摘要： A multistand, continuous stretch reducing mill is designed so that for the major reduction passes the largest to smallest diameter ratio changes by less than 0.4% from pass to pass and the squeeze length differential remains below 1.15 times the square root of the average logarithmic reduction (in millimeters) of the outer diameter of each pass. This way, polygonal inner contour and cracks in the pipe adjacent a roll gap is avoided.

摘要翻译： 设计了一种多段连续的拉伸减速机，以使主要的压下量通过从通过到通过的最小到最小直径比变化小于0.4％，并且挤压长度差异保持在平均对数减少的平方根的1.15倍以下 每通道外径的毫米）。 这样，避免了多边形的内轮廓和与轧辊间隙相邻的管中的裂缝。

公开(公告)号：US4033164A

公开(公告)日：1977-07-05

申请号：US608671

申请日：1975-08-28

申请人： Horst Biller ,  Friedrich Huls

发明人： Horst Biller ,  Friedrich Huls

IPC分类号： B21B17/14 ,  B21B17/00

CPC分类号： B21B17/14

摘要： Tubular billets are stretch-rolled in that the rolls of locations closer to the entrance have the speeds reduced temporarily from their respective normal operation speed by an amount, which is made dependent upon the mean longitudinal tension in the billet during rolling.

摘要翻译： 管状坯料被拉伸轧制，因为靠近入口的位置的辊的速度从其各自的正常操作速度暂时降低一定量，该量取决于轧制期间坯料中的平均纵向张力。