公开(公告)号：US09597718B2

公开(公告)日：2017-03-21

申请号：US14405612

申请日：2013-07-18

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Akihito Yamane

IPC分类号： B21B19/04 ,  B21B17/02 ,  B21B25/00 ,  B21B19/02 ,  B21B25/06 ,  B21B17/00 ,  B21B19/00 ,  B21B13/10 ,  B21B25/02 ,  B21B17/04 ,  B21B17/14 ,  B21B37/78

CPC分类号： B21B19/04 ,  B21B13/10 ,  B21B17/00 ,  B21B17/02 ,  B21B17/04 ,  B21B17/14 ,  B21B19/00 ,  B21B19/02 ,  B21B25/00 ,  B21B25/02 ,  B21B25/06 ,  B21B37/78 ,  B21B2261/04 ,  B21B2261/08

摘要： A manufacturing method of a seamless metal pipe includes determining whether a preceding-stage stand group is used in outer diameter reduction or in thickness reduction of a hollow shell; and performing elongating on the hollow shell, into which a mandrel bar is inserted, based on the determination. In addition, in the elongating, when the preceding-stage stand group is used in the outer diameter reduction, the hollow shell is rolled in a state where an inner surface of the hollow shell does not come into contact with the mandrel bar in the preceding-stage stand group, and the hollow shell is rolled in a state where the inner surface of the hollow shell comes into contact with the mandrel bar in the succeeding-stage stand group.

公开(公告)号：US09248483B2

公开(公告)日：2016-02-02

申请号：US13505326

申请日：2010-10-25

申请人： Rolf Kümmerling ,  Frank Hagemann ,  Gabriel Moniz Pereira ,  Nils Schäfer ,  Ken Johnson ,  Brad Chamberlain

发明人： Rolf Kümmerling ,  Frank Hagemann ,  Gabriel Moniz Pereira ,  Nils Schäfer ,  Ken Johnson ,  Brad Chamberlain

IPC分类号： B21B17/04 ,  B21B25/06 ,  B21B25/00

CPC分类号： B21B17/04 ,  B21B25/00 ,  B21B25/06

摘要： A device for the optimized circulation of mandrels includes a presentation and/or cooling table for mandrel rods, a lubricating station for the mandrel rods, optionally an additional drying station for the lubricant applied to the mandrels, and associated roller conveyors. An additional secondary rod circulation of is arranged upstream of the standard rod circulation and includes two redundantly operating transfer tables connected to the presentation and/or cooling table by a third roller conveyor or the first roller conveyor for the discharge of no longer needed rods from the standard rod circulation. The third roller conveyor either forms the continuation of the first roller conveyor or is arranged parallel thereto with an offset. A fourth roller conveyor for accommodating mandrel rods or passing mandrel rods intermittently into the standard circulation via an intermediate buffer is arranged on the opposite side of the transfer tables parallel to the first roller conveyor.

摘要翻译： 用于心轴的优化循环的装置包括用于芯棒的表示和/或冷却台，用于芯棒的润滑站，可选地用于施加到心轴的润滑剂的附加干燥站以及相关联的辊式输送机。 附加的辅杆循环设置在标准杆循环的上游，并且包括通过第三辊式输送机或第一辊式输送机连接到展示和/或冷却台的两个冗余操作的转移台，用于从不再需要的杆排出 标准杆循环。 第三辊式输送机或者形成第一辊式输送机的延续，或者与偏移平行布置。 通过中间缓冲器间歇地容纳芯棒或间歇地插入标准循环中的第四辊式输送机布置在平行于第一辊式输送机的转台上的相对侧。

公开(公告)号：US09205473B2

公开(公告)日：2015-12-08

申请号：US13438107

申请日：2012-04-03

申请人： Ettore Cernuschi ,  Claudio Maria Scalmana

发明人： Ettore Cernuschi ,  Claudio Maria Scalmana

IPC分类号： B21B17/02 ,  B21B25/02 ,  B21B17/04 ,  B21C45/00

CPC分类号： B21B17/02 ,  B21B17/04 ,  B21B25/02 ,  B21C45/00

摘要： A rolling plant (R) for rolling tubes having a multi-stand rolling mill (5) with two or more rolls, in order to implement a controlled speed mandrel rolling process, comprises a hooking and releasing device (61) which is arranged in the inlet area of the rolling mill (5) to cooperate with the rear tang of the mandrel (31) and a hooking and releasing device (71) which is arranged in the outlet area of the rolling mill (5) to cooperate with the front tang of the mandrel (31) in coordinated manner with the first hooking and releasing device (61).

摘要翻译： 为了实现受控速度的心轴轧制过程，为了实现受控速度的心轴轧制过程，具有具有两个或更多个轧辊的多台轧机（5）的轧制管轧机（R）包括一个挂钩和释放装置（61） 轧制机（5）的入口区域与心轴（31）的后柄部配合，以及配置在轧机（5）的出口区域中以与前刀柄配合的钩卸装置（71） 与第一钩挂释放装置（61）协调地形成心轴（31）。

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：US20150121982A1

公开(公告)日：2015-05-07

申请号：US14403241

申请日：2013-07-18

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Akihito Yamane

IPC分类号： B21B25/02 ,  B21B17/02 ,  B21B13/10

CPC分类号： B21B25/02 ,  B21B13/10 ,  B21B17/02 ,  B21B17/04 ,  B21B25/06 ,  B21B2261/04 ,  B21B2261/08

摘要： A manufacturing method of a seamless metal pipe includes: preparing a plurality of mandrel bars in which lengths of work portions which come into contact with a hollow shell during elongating are different from one another; selecting a mandrel bar including a work portion having a length corresponding to the number of stands used in thickness reduction, among the plurality of mandrel bars; inserting the mandrel bar selected in the selecting into the hollow shell; and performing the elongating on the hollow shell into which the mandrel bar is inserted. Moreover, in the elongating, outer diameter reduction is performed by one of a preceding-stage stand group and a succeeding-stage stand group and the thickness reduction is performed by the other of the preceding-stage stand group and the succeeding-stage stand group, or the thickness reduction is performed by both of the preceding-stage stand group and the succeeding-stage stand group.

摘要翻译： 无缝金属管的制造方法包括：准备多个芯棒，其中在延长期间与中空壳接触的长度的工作部分彼此不同; 在所述多个芯棒中选择包括具有对应于在厚度减少中使用的台架数量的长度的工件的芯棒; 将选择的芯棒插入中空壳体中; 并且在插入有芯棒的中空壳体上进行伸长。 此外，在伸长的情况下，通过前级架组和后级架组之一进行外径削减，并且由前级架组和后段架组合中的另一个进行厚度减小 ，或者由前级架组和后段架组两者进行厚度的削减。

公开(公告)号：US20130333433A1

公开(公告)日：2013-12-19

申请号：US13885914

申请日：2011-09-19

申请人： Rolf Kümmerling ,  Christoph Prasser ,  Gerd Homberg ,  Frank Hagemann ,  Gabriel Pereira ,  Winfried Braun

发明人： Rolf Kümmerling ,  Christoph Prasser ,  Gerd Homberg ,  Frank Hagemann ,  Gabriel Pereira ,  Winfried Braun

IPC分类号： B21B19/04

CPC分类号： B21B19/04 ,  B21B17/04 ,  B21B23/00

摘要： In a method for producing seamless pipes, a hot hollow block created previously in a piercing mill is stretched by means of a continuous rolling mill on a mandrel bar to form a parent pipe and the parent pipe is fed directly to a stretch reducing mill or sizing mill as a finishing mill, while forgoing an extracting mill and a reheating furnace, and is rolled there to the required final pipe diameter. The hollow block is pre-dimensioned in its length in such a manner that only a single length is produced as the required parent pipe length during the stretching in the continuous rolling mill and the parent pipe is pulled off of the mandrel rod by the finishing rolling during the subsequent finishing rolling, wherein the rolling is performed using rolling mill components that are designed in the dimensions thereof for handling single lengths.

摘要翻译： 在制造无缝管的方法中，先前在穿孔机中制造的热空心块通过连续轧机在芯棒上拉伸以形成母管，并将母管直接进给到减速磨或上浆 作为精轧机，同时进行提取碾磨机和再热炉，并将其轧制到所需的最终管道直径。 中空块的长度尺寸如下，使得在连续轧机中拉伸过程中只需要一个长度作为所需的母管长度，并且母管通过精轧将其从芯棒拉出 在随后的精轧期间，其中使用在尺寸上设计用于处理单个长度的轧机部件进行轧制。

公开(公告)号：US08601844B2

公开(公告)日：2013-12-10

申请号：US13425749

申请日：2012-03-21

申请人： Akihito Yamane

发明人： Akihito Yamane

IPC分类号： B21B17/08 ,  B21B19/08

CPC分类号： B21B17/04 ,  B21B27/024

摘要： A multi-roll mandrel mill comprises a plurality of grooved roll bodies as a roll pass for elongation rolling of a shell and a plurality of roll stands, each having roll shafts and roll chock portions for driving the grooved roll bodies for driving the grooved roll bodies, wherein bearings are internally contained in each grooved roll body. Optimizing the design of roll chock portions for every setup is achieved by a tube-making setup of the mandrel mill, wherein at least one of either or both of the roll shafts and the roll chock portions is replaced with a part(s) having a different shape(s) in addition to changing of the grooved roll bodies. The optimization of the design is effective in preventing underfill and overfill.

摘要翻译： 多辊心轴轧机包括多个槽轧辊体，作为用于壳体的伸长轧制的辊道和多个辊架，每个辊架具有辊轴和辊轴承座部分，用于驱动用于驱动带槽辊体的带槽辊体 其中轴承内部容纳在每个带槽辊体中。 通过芯棒式无缝管轧机的制管设备实现每个设置的辊轴承部分的设计优化，其中辊轴和辊轴承座部分中的一个或两个中的至少一个被替换为具有 除了改变带槽辊体之外，还有不同的形状。 设计的优化有效防止了底部填充和填充。

公开(公告)号：US20130180300A1

公开(公告)日：2013-07-18

申请号：US13728071

申请日：2012-12-27

申请人： Akihito YAMANE ,  Shigeru Kidani

发明人： Akihito YAMANE ,  Shigeru Kidani

IPC分类号： B21B37/78

CPC分类号： B21B37/78 ,  B21B17/04 ,  B21B37/58 ,  B21B37/62 ,  B21B38/00 ,  B21B2261/10 ,  B21B2271/02 ,  B21B2273/14 ,  B21B2273/16 ,  B21B2275/06

摘要： [Problem to be Solved]A device for adjusting the rolling positions of rolling rolls and restraining poor roll-biting of the front edge part of a pipe material rolled by a three-roll mandrel mill includes pressing-down devices 1 (P1 to P6) for moving rolling rolls R1 to R6 in the rolling direction and a control unit 2 for controlling the pressing-down devices 1. Immediately after the front edge part of a pipe material T has begun to be rolled by the rolling rolls disposed on at least one rolling stand of the rolling rolls R1 to R6, the control unit 2 controls the pressing-down device 1 to move the rolling rolls in the closing direction. Preferably, the rolling rolls disposed on at least one rolling stand of the rolling rolls R1 to R6 in the closing direction are moved at a speed of 16 mm/sec or higher using the pressing-down device 1.

摘要翻译： [待解决问题]用于调整轧辊的轧制位置并抑制由三辊心轴轧机轧制的管材的前边缘部分的不良滚动的装置包括压下装置1（P1至P6） 用于在轧制方向上移动轧制辊R1至R6;以及用于控制压下装置1的控制单元2.紧接着管材T的前边缘部分已经开始被设置在至少一个 轧制辊R1〜R6的轧制机架，控制单元2控制压下装置1使轧辊沿关闭方向移动。 优选地，使用压下装置1，使轧制辊R1〜R6的至少一个轧制机架以关闭方向设置在16mm / sec以上的速度。

公开(公告)号：US20130133392A1

公开(公告)日：2013-05-30

申请号：US13713620

申请日：2012-12-13

申请人： DANIELI & C. OFFICINE MECCANICHE S.P.A.

发明人： Ettore Cernuschi ,  Fabrizio Marini ,  Aristide Giacomo Bertelli

IPC分类号： B21B1/16 ,  B21B13/12 ,  B21B31/10

CPC分类号： B21B13/12 ,  B21B13/04 ,  B21B13/103 ,  B21B17/04 ,  B21B17/14 ,  B21B31/10 ,  B21B31/103 ,  B21B31/20 ,  B21B2203/06 ,  Y10T29/49815

摘要： A rolling mill stand and related rolling mill for rolling rod-shaped bodies, even large in size, which meets the requirement of stiffness uniformity of the rolling mill stands in the transversal direction, all the hydraulic capsules being firmly fixed to the external structure of the rolling mill and providing for the side change of the rolls of each stand. The arrangement of rolling rolls and related extensions of each rolling mill stand is such to avoid problems of corrosion and damaging to the extensions themselves and to the reducers due to the drainage of the cooling waters.

公开(公告)号：US20130118527A1

公开(公告)日：2013-05-16

申请号：US13735693

申请日：2013-01-07

申请人： SUMITOMO METAL INDUSTRIES, LTD.

发明人： Kouji Nakaike ,  Yasuyoshi Hidaka ,  Sumio Iida

IPC分类号： B08B3/02

CPC分类号： B08B3/022 ,  B21B17/04 ,  B21B17/14 ,  B21B23/00 ,  B21B25/00 ,  B21B25/04

摘要： It is an object of the present invention to provide a mandrel bar cleaning facility capable of effectively suppressing carburization generated on the inner surface of a pipe or tube while the pipe or tube is elongated and rolled without hindering an operation.A mandrel bar cleaning facility of the present invention cleans a mandrel bar B which is pulled out of a mandrel bar conveying line after being used for elongating and rolling a pipe or tube in a mandrel mill. The mandrel bar cleaning facility is provided with conveying devices that convey the mandrel bar B in the axial direction while revolving the mandrel bar B in the peripheral direction, and cleaning devices that are arranged oppositely to the side of the mandrel bar B conveyed by the conveying devices and jet high-pressure water having a water pressure of 0.2 to 150 MPa (preferably, 20 to 150 MPa) toward the outer surface of the mandrel bar B.

摘要翻译： 本发明的目的是提供一种芯棒清洗设备，能够有效地抑制管或管的内表面上产生的渗碳，同时在不妨碍操作的情况下延长和滚动管子。 本发明的芯棒清洗装置清洗在芯棒式无缝管轧机中用于延长和轧制管或管之后从芯棒输送线拉出的芯棒B。 芯棒清洗装置设有沿轴向传送芯棒B的输送装置，同时使芯棒B沿圆周方向旋转，以及与通过输送传送的芯棒B的相反侧配置的清洗装置 装置，并且向芯棒B的外表面施加水压为0.2至150MPa（优选为20至150MPa）的喷射式高压水。