公开(公告)号：US08413474B2

公开(公告)日：2013-04-09

申请号：US12310818

申请日：2007-08-06

申请人： Hiroyuki Iwamoto

发明人： Hiroyuki Iwamoto

IPC分类号： B21B19/04

CPC分类号： B21C51/00 ,  B21B19/04 ,  B21B37/78 ,  B21B38/006 ,  B21B38/04 ,  B21B2261/04 ,  B21B2261/10 ,  B21B2261/20 ,  B21B2261/21 ,  B21J5/10 ,  G01B17/02 ,  G01B21/085

摘要： The monitoring apparatus of production conditions in a piercing-rolling mill for piercing and rolling a billet B to produce a pipe S comprises an ultrasonic thickness meter which is installed on an exit side of the piercing-rolling mill and measures a thickness of the pipe S produced by the piercing-rolling mill, a thermometer which is installed on the exit side of the piercing-rolling mill and measures a surface temperature of the pipe S produced by the piercing-rolling mill, and a computing and displaying device which is connected to the ultrasonic thickness meter and the thermometer and displays a thickness distribution in a circumferential direction of the pipe S based on the thickness of the pipe S measured by the ultrasonic thickness meter, and a surface temperature distribution in a circumferential direction of the pipe S based on the surface temperature of the pipe S measured by the thermometer.

摘要翻译： 用于穿孔轧制坯料B以生产管道S的穿孔轧机的生产条件的监控装置包括安装在穿孔轧机的出口侧的超声波测厚仪，并测量管道S的厚度 由穿孔轧机生产的温度计，安装在穿孔轧机的出口侧的温度计，测量由穿孔轧机生产的管S的表面温度，以及计算和显示装置，其连接到 超声波测厚仪和温度计，基于由超声波测厚仪测定的管S的厚度和管S的圆周方向的表面温度分布，在管S的周向上显示厚度分布，基于 由温度计测量的管道S的表面温度。

公开(公告)号：US20130074563A1

公开(公告)日：2013-03-28

申请号：US13542328

申请日：2012-07-05

申请人： Paolo Marin ,  Vincenzo Palma ,  Guido Emilio Zanella ,  Jacopo Grassino

发明人： Paolo Marin ,  Vincenzo Palma ,  Guido Emilio Zanella ,  Jacopo Grassino

IPC分类号： B21B19/04

CPC分类号： B21B19/04 ,  B21B13/04 ,  B21B17/04 ,  B21B19/08 ,  B21B23/00 ,  B21B25/00 ,  B21B37/78 ,  B21B38/006 ,  B21B38/04 ,  B21B2013/025

摘要： The present invention teaches rolling a seamless tube, typically with a large diameter. The system comprises a furnace for heating billets produced by continuous casting. The system comprises a piercing mill for longitudinally piercing the heated billets to obtain a pierced blank. The system comprises an expanding-elongating mill for expanding the pierced blank diameter and for elongating the pierced blank to obtain a semi-finished tube. The system comprises a continuous main rolling mill with adjustable rolls for mandrel-rolling a semi-finished tube. The system comprises a fixed-roll extracting-reducing mill positioned downstream of the main rolling mill. The extracting-reducing mill extracts the semi-finished tube from the mandrel, reducing the diameter to a predetermined value close to that desired for the finished tube. The system comprises an adjustable-roll sizing mill to adjust the radial position of the rolls and define the diameter of the outgoing tube.

摘要翻译： 本发明教导了通常具有大直径的无缝管的轧制。 该系统包括用于加热由连续铸造产生的坯料的炉。 该系统包括用于纵向刺穿加热的坯料的穿孔机，以获得穿孔的坯料。 该系统包括用于扩大穿孔毛坯直径并延伸穿孔毛坯以获得半成品管的扩张延伸磨机。 该系统包括连续主轧机，其具有用于心轴轧制半成品管的可调节辊。 该系统包括位于主轧机下游的固定辊提取 - 减少磨机。 提取还原机从心轴提取半成品管，将直径减小到接近成品管所需的预定值。 该系统包括可调节辊尺寸调节机，以调节辊的径向位置并限定输出管的直径。

公开(公告)号：US20110174034A1

公开(公告)日：2011-07-21

申请号：US13075522

申请日：2011-03-30

申请人： Hiroyuki IWAMOTO

发明人： Hiroyuki IWAMOTO

IPC分类号： B21B37/78 ,  B21B37/56

CPC分类号： B21B37/78 ,  B21B38/08

摘要： An elongation rolling control method is provided which can manufacture a hollow shell of high dimensional accuracy and can suppress rolling problems. It is an elongation rolling control method in which the groove bottom wall thickness of a hollow shell P in stand #1 having an ultrasonic wall thickness wall gauge 1 installed between it and stand #2 is measured, the outer diameter of a mandrel bar B is calculated based on the set value of the roll gap in stand #1 and the groove bottom wall thickness of the hollow shell P, the location in the lengthwise direction of the mandrel bar B for which the outer diameter was calculated is determined based on positional information on a bar retainer BR, the distribution in the lengthwise direction of the outer diameter of the mandrel bar is calculated by repeating the above steps, the location in the lengthwise direction of the mandrel bar which contacts the hollow shell in a subsequent stand is determined based on positional information on the bar retainer, and the roll gap in the subsequent stand is set based on the outer diameter of the determined location in the lengthwise direction of the mandrel bar.

摘要翻译： 提供一种能够制造高尺寸精度的中空壳并能够抑制轧制问题的伸长率轧制控制方法。 作为延伸轧制控制方法，其中测量具有安装在其与支架＃2之间的超声波壁厚壁规1的支架＃1中的中空壳体P的槽底壁厚度，芯棒B的外径为 基于支架＃1中的辊间隙的设定值和中空壳体P的槽底壁厚度计算出的，计算出外径的芯棒B的长度方向的位置基于位置信息 在棒保持器BR上，通过重复上述步骤来计算芯棒的外径的长度方向的分布，基于随后的支架中的与中空壳接触的芯棒的长度方向的位置确定 关于杆保持器上的位置信息，并且后续支架中的辊间隙基于在m的长度方向上的确定位置的外径来设定 rel吧。

公开(公告)号：US07707865B2

公开(公告)日：2010-05-04

申请号：US12068044

申请日：2008-02-01

申请人： Kenichi Sasaki

发明人： Kenichi Sasaki

IPC分类号： B21B37/00

CPC分类号： B21C51/00 ,  B21B17/04 ,  B21B37/78 ,  B21B38/04 ,  B21B38/08 ,  B21B2261/04 ,  B21B2265/12

摘要： A flaw detection apparatus and flaw detection method for automatically detecting the occurrence of a flaw in a mother tube manufactured by rolling a hollow shell using a mandrel mill are provided. A flaw detection apparatus (100) according to the present invention includes a wall thickness gauge (1) which is installed on the exit side of a mandrel mill (M) and which measures the tube wall thickness in each of the reducing directions of a hollow shell (P) in the #1-#5 stands of the mandrel mill, rolling load measuring devices (2) which measure the rolling load in the #1-#5 stands, and a decision unit (3) which determines whether there are flaws in the mother tube based on the measured value of the tube wall thickness in each of the reducing directions of the hollow shell (P) and the measured value of the rolling load in each stand. The decision unit (3) determines that a flaw has occurred in the mother tube when the measured value of the tube wall thickness in any of the reducing direction in the #1-#5 stands locally varies by at least a predetermined amount and the measured value of the rolling load in any of the #1-#5 stands locally varies by at least a predetermined amount.

摘要翻译： 提供了一种用于自动检测通过使用芯棒式无缝管轧机轧制中空壳而制造的母管中的缺陷的发生的缺陷检测装置和缺陷检测方法。 根据本发明的探伤装置（100）包括安装在芯棒式无缝管轧机（M）的出口侧的壁厚计（1），其测量中空部的每个还原方向的管壁厚度 芯棒式无缝管轧机＃1＃5机架中的壳体（P），测量＃1-＃5机架中的轧制负荷的轧制负载测量装置（2），以及决定单元（3） 基于中空壳（P）的每个还原方向的管壁厚度的测量值和每个支架中的滚动负载的测量值，母管中的缺陷。 判定单元（3）判定当＃1＃5站中的任一个减少方向的管壁厚度的测量值在局部变化至少预定量时，母管中已经发生了缺陷， ＃1＃5站中的任一个中的轧制负载值在本地变化至少预定量。

公开(公告)号：US20060053855A1

公开(公告)日：2006-03-16

申请号：US11222798

申请日：2005-09-12

申请人： Akihito Yamane

发明人： Akihito Yamane

IPC分类号： B21B17/10

CPC分类号： G01B15/02 ,  B21B17/04 ,  B21B17/14 ,  B21B37/78 ,  B21B38/04

摘要： A complex Fourier transform is performed on measured values of wall thickness at points in a cross section of a pipe in an axial direction, types of thickness deviation are classified, thickness deviation amount is calculated from the absolute value of the complex Fourier component, the position of a thick or thin portion of thickness deviation is calculated from the phase of the complex Fourier component, and manufacturing conditions of the pipe are adjusted based on these variables. The relationship r·exp(jθ) between the thickness deviation amount r and phase θ of a first-order thickness deviation obtained for cross sections in the axial direction is subjected to a complex Fourier transform as a function of pipe longitudinal direction, the thickness deviation is further classified by the frequency of twist of the thickness deviation, and an action is taken to prevent the thickness deviation according to the classified thickness deviation.

公开(公告)号：US06526792B1

公开(公告)日：2003-03-04

申请号：US09786035

申请日：2001-02-28

申请人： Hans Joachim Pehle

发明人： Hans Joachim Pehle

IPC分类号： B21B3772

CPC分类号： B21B37/78 ,  B21B17/14

摘要： The invention relates to a method for minimizing thickened ends during the rolling of tubes in a stretch-reducing mill by means of a change in time of the torque of individual driven roll stands when the tube front end and the tube rear end run through the stretch-reducing mill, so that the tube ends are rolled with higher roll speeds than the steady-state speeds. At the same time, lower roll speeds than the steady-state roll speeds are set between the steady-state and the increased roll speeds.

摘要翻译： 本发明涉及一种方法，用于当管前端和管后端穿过拉伸时，借助于单个从动辊架的扭矩的时间变化，在拉伸力减小的轧机中轧制管道期间加厚端部的方法 使得管端以比稳态速度更高的辊速滚动。 同时，在稳态和增加的转速之间设定低于稳态辊速度的下辊速度。

公开(公告)号：US6128934A

公开(公告)日：2000-10-10

申请号：US334348

申请日：1999-06-16

申请人： David W. Houghton

发明人： David W. Houghton

IPC分类号： B21B17/14 ,  B21B35/02 ,  B21B37/52 ,  B21B37/78 ,  B21B37/58

CPC分类号： B21B37/52 ,  B21B37/78 ,  B21B17/14 ,  B21B35/025

摘要： A method and apparatus that provides a multiple-stand stretch reduction mill. A single master controller monitors and controls the roll speed at each roll stand in the mill, automatically and simultaneously maintaining each stand's roll speed at a pre-determined, calculated roll speed.

摘要翻译： 一种提供多台拉伸减速磨的方法和装置。 单个主控制器监测和控制轧机中每个轧辊架处的轧辊速度，并自动同时将轧机速度保持在预先确定的滚动速度。

公开(公告)号：US5501091A

公开(公告)日：1996-03-26

申请号：US155844

申请日：1993-11-23

申请人： Chihiro Hayashi

发明人： Chihiro Hayashi

IPC分类号： B21B17/02 ,  B21B17/04 ,  B21B17/14 ,  B21B25/00 ,  B21B37/78

CPC分类号： B21B37/78 ,  B21B17/04 ,  B21B17/14 ,  B21B25/00

摘要： In a method of elongating a metal tube by means of a mandrel mill, a tapered mandrel bar is inserted into a hollow piece and the feeding speed of the mandrel bar is controlled so as to change the length by which the mandrel bar projects beyond the delivery end of the final stand of the mandrel mill at the point of time when the leading end of the hollow shell is gripped by the rolls in the final stand. As a result, the wall thickness of the hollow shell is altered to permit the rolling of hollow shells of many sizes with different wall thicknesses using a single mandrel bar.

摘要翻译： 在通过芯棒式无缝管轧机拉伸金属管的方法中，将锥形芯棒插入中空件中，并且控制芯棒的进给速度以改变芯棒伸出超过输送的长度 在中空壳的前端被最终支架中的辊夹持的时刻，芯棒式无缝管轧机的最终支架的末端。 结果，中空壳的壁厚被改变以允许使用单个芯棒滚动具有不同壁厚的许多尺寸的中空壳。

公开(公告)号：US4589268A

公开(公告)日：1986-05-20

申请号：US603632

申请日：1984-04-25

申请人： Kazuyuki Sakurada ,  Takanori Fujiwara ,  Yutaka Funyu

发明人： Kazuyuki Sakurada ,  Takanori Fujiwara ,  Yutaka Funyu

IPC分类号： B21B17/02 ,  B21B17/08 ,  B21B19/04 ,  B21B23/00 ,  B21B37/00 ,  B21B37/78 ,  B21B45/00

CPC分类号： B21B37/78 ,  B21B37/005 ,  B21B17/02 ,  B21B17/08 ,  B21B19/04 ,  B21B23/00 ,  B21B45/004

摘要： According to the present invention, in a method of controlling a mill pacing in a rolling equipment wherein a plurality of serial rolling mills are provided downstream of a heating furnace in which a plurality of materials are rested on a furnace hearth integrally moving with the materials and can be successively extracted, respective rolling cycle times are sought from periods of time between the starts of rolling in respective rolling mills of a subsequent material to be extracted from the heating furnace and the readiness for rolling of the following material in the respective rolling mills, the maximum value of the above-described respective rolling cycle times is assumed as an extraction cycle time of the subsequent material to be extracted to thereby presuppose an extraction time of the subsequent material to be extracted from the heating furnace, allowable retard periods of time of the materials immediately before the respective rolling mills are predetermined, the presupposed retard periods of time of the subsequent materials to be extracted immediately before the respective rolling mills are confirmed to be within the aforesaid allowable retard periods of time, and further, a heating critical cycle time is confirmed to be securable which is sufficient for applying heat of a predetermined value to the subsequent material to be extracted through the latest material to be loaded, whereby the subsequent material is extracted at the aforesaid presupposed extraction time. As a result, the operating condition of the rolling line as a whole are optimized, so that the productivity can be improved.

摘要翻译： 根据本发明，在一种控制轧制设备中的轧机起搏方法中，其中多个串联轧机设置在加热炉的下游，其中多个材料搁置在与该材料一体移动的炉床上， 可以连续地提取各自的轧制循环时间，从在从各加热炉取出的后续材料的各轧机的轧制开始之间的时间段以及在各轧机中轧制后续材料的准备状态， 假定上述各滚动循环次数的最大值作为随后提取的材料的提取循环时间，从而预先确定从加热炉中提取的后续材料的提取时间，允许的延迟时间段 在各轧机之前的材料是预先确定的 在相应的轧机确认为在上述允许的延迟时间之前即将提取的随后的材料的等待时间段，此外，确认加热临界循环时间是足够的，其对于施加热量是足够的 通过最新的待加载材料提取的后续材料的预定值，由此在上述预先提取时间提取后续材料。 结果，轧制线整体的运行状态被优化，从而可以提高生产率。

公开(公告)号：US4578626A

公开(公告)日：1986-03-25

申请号：US714344

申请日：1985-03-21

申请人： Walter Richter

发明人： Walter Richter

IPC分类号： B21B19/06 ,  B21B37/78 ,  H02P7/298 ,  H02P23/16 ,  H02P5/16 ,  H02P7/00

CPC分类号： B21B37/78 ,  H02P23/16 ,  H02P7/2985 ,  B21B19/06 ,  Y10S388/902 ,  Y10S388/917

摘要： An electric control arrangement for controlling the speed of a roll driving motor for rolling mills for manufacturing hollow blocks is described. A power controller determines from the speed, field strength and armature current of the driving motor, the actual value of the motor power, compares the latter with a reference value, and generates a controlled variable which is fed to a current controller of the control arrangement to control the motor so that the motor delivers constant power.

摘要翻译： 描述用于控制用于制造空心块的轧机的辊驱动电机的速度的电控制装置。 功率控制器根据驱动电动机的速度，场强和电枢电流确定电动机功率的实际值，将其与参考值进行比较，并且生成被馈送到控制装置的电流控制器的受控变量 以控制电机，使电机输出恒定的功率。