公开(公告)号：US09056341B2

公开(公告)日：2015-06-16

申请号：US13133518

申请日：2009-11-20

申请人： Rolf Kümmerling ,  Manfred Bellmann ,  Winfried Braun ,  Hidenori Kinugasa ,  Sasaki Kenichi

发明人： Rolf Kümmerling ,  Manfred Bellmann ,  Winfried Braun ,  Hidenori Kinugasa ,  Sasaki Kenichi

IPC分类号： B21B27/02 ,  B21B23/00 ,  B21B17/04 ,  B21B17/14

CPC分类号： B21B27/024 ,  B21B17/04 ,  B21B17/14 ,  B21B23/00

摘要： The invention relates to a method for producing seamless tubes from metal, particularly from steel, wherein a previously produced hot hollow block is stretched by means of a three-roll bar rolling mill on a mandrel to form a parent tube and, before running into the bar rolling mill, the hollow block is provided with a rolling step that makes the diameter more uniform by means of an upstream stand. It is in this case provided that the rolls of the upstream stand are moved apart and together to the same extent as the deforming stands of the bar rolling mill, wherein the calibrating base radius of the rolls of the upstream stand extends over 60° and this is followed by a flank radius with a tangential transition which is dimensioned such that even with the maximum setting of the rolls in the region of the flank there is virtually no diameter reduction of the largest hollow block diameter to be expected.

摘要翻译： 本发明涉及一种用于从金属，特别是钢制成无缝管的方法，其中先前制造的热空心块通过三辊棒轧机在心轴上拉伸以形成母管，并且在进入 中空块具有通过上游支架使直径更均匀的轧制步骤。 在这种情况下，上游支架的辊子与棒式轧机的变形架一样移动到一起，其中上游支架的辊的校准基座半径延伸超过60°， 其后面是具有切向过渡的侧面半径，其尺寸使得即使在侧面区域中的辊的最大设定也实际上没有预期的最大空心块直径的直径减小。

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：US4030333A

公开(公告)日：1977-06-21

申请号：US723695

申请日：1976-09-16

申请人： Manfred Bellmann ,  Hannes Goldberg

发明人： Manfred Bellmann ,  Hannes Goldberg

IPC分类号： B21B23/00 ,  B21C51/00 ,  B21B39/00

CPC分类号： B21C51/00 ,  B21B23/00 ,  B21C51/005

摘要： The method of gaplessly separating and identifying successive rolling lots of ingots or blooms in a production process for making tubes or the like wherein the stock is introduced into a furnace for heating and in a production line subsequently rolled, which comprises radio-actively marking the first or the last ingot of a given rolling lot of ingots at its subsequently lost end prior to being introduced into the furnace. A further step includes interposing a radio-active radiation responsive signal device in said production line before rolling. Apparatus for carrying out said method includes a device for imparting radioactivity to an ingot in advance of a rotary hearth furnace. Radiation counter-tubes are located in advance of a taper mill and a continuous rolling mill respectively. Further counter-tubes are arranged in advance of a stretch reducing or sizing mill. A non-radioactive marking device is arranged in registry with the rolled stock and operatively coupled with said further counter-tubes and located downstream of the sizing mill.

摘要翻译： 在制造管等的制造过程中无缝分离和识别锭或花纹的连续轧制的方法，其中将坯料引入加热炉中并在随后轧制的生产线中，其包括无线电主动地标记第一 或者在被引入炉内之前，其随后丢失的端部的给定轧制批次的锭的最后一锭。 进一步的步骤包括在轧制之前在生产线中插入无线电 - 有源辐射响应信号装置。 用于实施所述方法的装置包括一种用于在转底炉之前向铸块提供放射性的装置。 辐射对管分别位于锥形磨机和连续轧机之前。 进一步的对管在拉伸减小或定型磨机之前设置。 非放射性标记装置布置成与轧制坯料对准并且与所述另外的对管管连接并且位于上浆机的下游。

公开(公告)号：US20120125068A1

公开(公告)日：2012-05-24

申请号：US13133518

申请日：2009-11-20

申请人： Rolf Kümmerling ,  Manfred Bellmann ,  Winfried Braun ,  Hidenori Kinugasa ,  Sasaki Kenichi

发明人： Rolf Kümmerling ,  Manfred Bellmann ,  Winfried Braun ,  Hidenori Kinugasa ,  Sasaki Kenichi

IPC分类号： B21B23/00 ,  B21B19/06

CPC分类号： B21B27/024 ,  B21B17/04 ,  B21B17/14 ,  B21B23/00

摘要： The invention relates to a method for producing seamless tubes from metal, particularly from steel, wherein a previously produced hot hollow block is stretched by means of a three-roll bar rolling mill on a mandrel to form a parent tube and, before running into the bar rolling mill, the hollow block is provided with a rolling step that makes the diameter more uniform by means of an upstream stand. It is in this case provided that the rolls of the upstream stand are moved apart and together to the same extent as the deforming stands of the bar rolling mill, wherein the calibrating base radius of the rolls of the upstream stand extends over 60° and this is followed by a flank radius with a tangential transition which is dimensioned such that even with the maximum setting of the rolls in the region of the flank there is virtually no diameter reduction of the largest hollow block diameter to be expected.

摘要翻译： 本发明涉及一种用于从金属，特别是钢制成无缝管的方法，其中先前制造的热空心块通过三辊棒轧机在心轴上拉伸以形成母管，并且在进入 中空块具有通过上游支架使直径更均匀的轧制步骤。 在这种情况下，上游支架的辊子与棒式轧机的变形架一样移动到一起，其中上游支架的辊的校准基座半径延伸超过60°， 其后面是具有切向过渡的侧面半径，其尺寸使得即使在侧面区域中的辊的最大设定也实际上没有预期的最大空心块直径的直径减小。

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。