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公开(公告)号：KR1020120063507A
公开(公告)日：2012-06-15
申请号：KR1020127008689
申请日：2009-10-07
Applicant: 신닛테츠스미킨 카부시키카이샤
CPC classification number: B21B45/0218 , B21B39/006 , B21B2261/20 , B21B2265/02
Abstract: 이 열연의 냉각 장치는, 연속 열간 압연의 마무리 압연기의 하류측에 배치되며, 상기 마무리 압연기에 의해 압연된 강판을 반송하면서 냉각하는 열연의 냉각 장치이며, 상기 마무리 압연기의 최종 스탠드로부터 송출된 상기 강판의, 상기 최종 스탠드의 위치로부터 상기 강판의 표면 온도가 850℃ 이하로 되는 위치에 걸친 사이에 대하여, 3.9㎫ 이상의 장력을 가하면서 상기 강판을 끼움 지지하는 제1 핀치롤을 구비한다.
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公开(公告)号：KR1020030054553A
公开(公告)日：2003-07-02
申请号：KR1020010084729
申请日：2001-12-26
Applicant: 주식회사 포스코
IPC: B21B37/48
CPC classification number: B21B37/52 , B21B38/08 , B21B2265/02 , B21B2275/04 , B21B2275/12
Abstract: PURPOSE: A tension operation control system and a tension operation control method are provided to control tension applied to rolled strip by controlling rolling speed of the front stand after operating tension applied to rolled strip between front and rear stands. CONSTITUTION: In a system for controlling tension generated between neighboring stands in hot rolling mill, the tension control system comprises a data collection part(11) for detecting speed of electric motor(5), armature voltage of the electric motor, armature current of the electric motor and roll force for a plural strips when strip bar is advanced into front stand(3a); a learning data operation/storage part(13) for storing results of operation of average roll force (Fs) and roll force coefficient (As) of the strips using roll force for a plural strips worked in pertinent stand; a surface average roll force operation part(15) for operating average roll force of unit surface area by the following expression (Fu=(Tl-AF)/BWΔH) by using rolling torque, average roll force, roll force coefficient and torque coefficient after operating electric motor torque (Ta) using the collected data, operating rolling torque (Tl) using the operated electric motor torque (Ta) and accelerated and decelerated torque (Tb), and operating torque coefficient considering frictional coefficient of roll and radius of flat roll; a speed conversion part(17) for converting the obtained average roll force of unit surface area into compensation speed for tension control; and an electric motor speed control part(19) for controlling driver of the front stand by the calculation results after calculating compensation speed obtained considering reference speed and converted speed VF.
Abstract translation: 目的：提供张力操作控制系统和张力操作控制方法，用于通过在施加到前架和后架之间的轧制带的操作张力之后控制前支架的轧制速度来控制施加到轧制带材的张力。 构成：在用于控制热轧机相邻支架之间产生的张力的系统中，张力控制系统包括用于检测电动机（5）的速度的数据收集部分（11），电动机的电枢电压，电动机的电枢电流 当条带推进到前支架（3a）中时，电动机和多个条带的滚动力; 一个学习数据操作/存储部分（13），用于在相关支架上加工的多个条带使用滚动力来存储条的平均滚动力（Fs）和滚动力系数（As）的操作结果; 通过使用滚动扭矩，平均滚动力，辊力系数和扭矩系数，通过以下表达式（Fu =（Tl-AF）/BWΔH）来操作单位表面积的平均滚动力的表面平均滚动力操作部分（15） 使用所收集的数据来操作电动机转矩（Ta），使用所操作的电动机转矩（Ta）和加速和减速转矩（Tb）来操作轧制转矩（Tl）以及考虑辊的摩擦系数和平辊半径的操作转矩系数 ; 用于将获得的单位表面积的平均滚动力转换成用于张力控制的补偿速度的变速部分（17） 以及电动机速度控制部（19），用于通过计算考虑了基准速度和转换速度VF的补偿速度之后的计算结果来控制前支架的驾驶员。
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公开(公告)号：KR1020030086844A
公开(公告)日：2003-11-12
申请号：KR1020020025039
申请日：2002-05-07
Applicant: 주식회사 포스코
IPC: B21B37/00
CPC classification number: B21B37/54 , B21B2265/02 , B21B2275/08
Abstract: PURPOSE: A controlling method of reel tension and speed of skin pass mill is provided to reduce slip inside coil, reduce slipping defects and improve actual yield of products accordingly by controlling initial operation tension in multistep for the top part of the coil and controlling rolling speed in multistep for the end part of the coil. CONSTITUTION: In a reel tension and speed control method applied to a skin pass mill which performs temper rolling by transferring coil coiled on payoff reel to work rolls through pressure roll and winds the coil as the top part of the coil is being gripped by tension reel, the method comprises first step (S61) in which when the coil arrives at the work rolls by advancing the coil mounted on the payoff reel, the work rolls are pushed up to turn on tension, and tension of the work rolls is increased to a set tension; second step (S62) in which when the tension of the work rolls reaches the set tension, tension control of the payoff reel is started, and tension of the payoff reel is increased and controlled stepwise at set time intervals from control time point; third step (S63) in which when the top part of the coil passing through the work rolls is gripped by the tension reel, output side tension and trading are turned on, and recoiling is started to perform operation at a normal operation speed of 270 to 400 m/min; fourth step (S64) of judging whether residual amount of the coil come to a set residual amount or not by continuously computing the residual amount of the coil of the payoff reel while performing operation of the third step (S63), and proceeding operation process at the normal operation speed of the third step (S63) before the residual amount of the coil come to the set residual amount; and fifth step (S65) of reducing speed of the payoff reel stepwise according to the preset residual amount if current residual amount of the coil come to a set residual amount in the fourth step (S64).
Abstract translation: 目的：通过控制线圈顶部的多段初始操作张力并控制轧制速度，提供了一种皮带磨机的卷轴张力和速度控制方法，以减少线圈内的滑动，减少滑动缺陷，提高产品的实际产量 在线圈的末端部分进行多步操作。 构成：在卷轴张力和速度控制方法中，应用于通过将通过压力辊卷绕在工作辊上的线圈传送卷绕的轧制辊进行调质轧制，并且当线圈的顶部被卷绕的线圈卷绕时，由张力卷轴 该方法包括第一步骤（S61），其中当线圈通过使安装在收益卷轴上的线圈前进来到达工作辊时，工作辊被向上推动以转动张力，并且将工作辊的张力增加到 设定紧张; 第二步骤（S62），其中当工作辊的张力达到设定张力时，启动卷轴的张力控制开始，并且从控制时间点以设定的时间间隔逐渐增加和控制送货卷轴的张力; 第三步骤（S63），其中当通过工作辊的线圈的顶部被张力卷轴夹住时，输出侧张力和交易被打开，并且开始回卷，以正常操作速度270至 400米/分钟; 第四步骤（S64），通过在执行第三步骤的操作期间连续计算发票卷轴的剩余量来判断线圈的剩余量是否达到设定的剩余量（S63），并且进行操作处理 在线圈的剩余量达到设定剩余量之前的第三步骤（S63）的正常操作速度; 以及第五步骤（S65），如果在第四步骤中线圈的当前剩余量达到设定的剩余量，则根据预设剩余量逐步降低发送卷轴的速度（S64）。
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公开(公告)号：KR1020030053706A
公开(公告)日：2003-07-02
申请号：KR1020010083654
申请日：2001-12-22
Applicant: 재단법인 포항산업과학연구원 , 주식회사 포스코
IPC: B21B38/02
CPC classification number: B21B38/02 , B21B39/084 , B21B2263/02 , B21B2265/02
Abstract: PURPOSE: A method for recognizing shape of workpiece by using tension profile detected by 7 segmented looper(2 dummy bar and 5 measuring roll) is provided which is capable of producing wave patterns even though error of load sensor is generated by using segmentation type looper system positioned between rolling mills in finish hot rolling process. CONSTITUTION: The method comprises first step of judging whether load sensor is abnormal or not; second step of determining width of workpiece on segmented rolls; third step of determining tension on the segmented rolls according to whether load sensor is abnormal or not judged in the first step and the width of workpiece determined in the second step; fourth step of determining position on the segmented rolls to which tension is applied if tension is determined in the third step; fifth step of curve fitting the tension profile if the position on the segmented rolls to which tension is applied is determined in the fourth step; and sixth step of determining tension profile coefficient (shape coefficient) of the tension profile expression derived in the fifth step.
Abstract translation: 目的：提供通过使用由7个分段弯针（2个虚拟条和5个测量辊）检测的张力轮廓来识别工件形状的方法，其能够产生波形图，即使通过使用分割类型活套系统产生负载传感器的误差 在精轧热轧过程中定位在轧机之间。 构成：该方法包括判断负载传感器是否异常的第一步骤; 确定分段辊上工件宽度的第二步; 根据负载传感器是否在第一步骤中判断负载传感器是否异常，以及在第二步骤中确定的工件宽度来确定分段轧辊上的张力的第三步骤; 在第三步骤中确定张力时，确定施加张力的分段辊上的位置的第四步骤; 在第四步中确定施加张力的分段辊上的位置时曲线拟合张力轮廓的第五步骤; 以及确定在第五步骤中导出的张力分布表达式的张力分布系数（形状系数）的第六步骤。
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公开(公告)号：KR1020010057931A
公开(公告)日：2001-07-05
申请号：KR1019990061351
申请日：1999-12-23
Applicant: 재단법인 포항산업과학연구원 , 주식회사 포스코
Inventor： 김근영
IPC: B21B39/00
CPC classification number: B21B37/52 , B21B38/06 , B21B39/082 , B21B2265/02
Abstract: PURPOSE: A method for controlling tension of a tension leveler is provided to strengthen a tension control efficiency of the tension leveler used in a steel cold smoke/surface processing equipment and improve productivity and manufacturing performance of the tension leveler. CONSTITUTION: A method for controlling tension of a tension leveler includes the steps of measuring tension from a tension measuring sensor mounted in front or rear of an operation roll of the tension leveler device in a real time, performing feedback control to a motor controller of a draw motor and a pinion motor driving a bridle roll of the tension measuring device, comparing the measured tension with tension designated in a special location of the tension leveler, applying a difference between the tensions to the tension controller, and making all motors driving the bridle roll perform tension feedback control.
Abstract translation: 目的：提供一种用于控制张力矫直机张力的方法，以增强钢制冷烟/表面处理设备中使用的张力矫直机的张力控制效率，并提高张力矫直机的生产率和制造性能。 构成：用于控制张力矫直机张力的方法包括以下步骤：实时地测量安装在张力矫直器装置的操作辊的前面或后面的张力测量传感器的张力，对马达控制器执行反馈控制 拉伸马达和小齿轮马达驱动张力测量装置的卡箍，将测得的张力与张力矫直机的特殊位置中指定的张力进行比较，应用张力控制器的张力之间的差异，并使所有马达驱动马 辊执行张力反馈控制。
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Patent Agency Ranking
公开(公告)号：KR1020000013630A
公开(公告)日：2000-03-06
申请号：KR1019980032601
申请日：1998-08-11
Applicant: 주식회사 포스코
IPC: B21B37/48
CPC classification number: B21B37/50 , B21B39/084 , B21B2265/02
Abstract: PURPOSE: A method for controlling strip tension in a delivery looping tower is provided to easily set the standard value of an outlet strip that keeps the balance between entrance tension and exit tension, and to improve tension hunting of the outlet strip. CONSTITUTION: The controlling device is composed of:an inlet strip tension control unit(410) setting a control value by integrating the deviation between real value and standard value of the inlet strip tension in proportion; a position control unit(420) controlling to meet the position of an exit carriage(124) and an entrance side carriage(123) when traveling the outlet strip at the right speed; outlet speed calibrating units(430,440) calibrating loss caused by the outlet speed by adding mechanical loss calibrating value(M.C) and inertia loss calibrating value(I.C) when the outlet strip accelerates and decelerates; and an outlet strip tension control unit(450).
Abstract translation: 目的：提供一种用于控制输送循环塔中的带钢张力的方法，以便容易地设定出口钢带的标准值，以保持进口张力和出口张力之间的平衡，并改善出口钢带的张力。 构成：控制装置包括：入口带张力控制单元，通过将入口带张力的实际值与标准值的偏差成比例地整合来设定控制值; 位置控制单元（420），当以正确的速度行驶所述出口条时，控制其满足出口托架（124）和入口侧托架（123）的位置; 出口速度校准单元（430,440）通过在出口板加速和减速时添加机械损耗校准值（M.C）和惯性损耗校准值（I.C）来校准由出口速度引起的损耗; 和出口带张力控制单元（450）。
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公开(公告)号：KR101444564B1
公开(公告)日：2014-09-24
申请号：KR1020127008689
申请日：2009-10-07
Applicant: 신닛테츠스미킨 카부시키카이샤
CPC classification number: B21B45/0218 , B21B39/006 , B21B2261/20 , B21B2265/02
Abstract: 이 열연의 냉각 장치는, 연속 열간 압연의 마무리 압연기의 하류측에 배치되며, 상기 마무리 압연기에 의해 압연된 강판을 반송하면서 냉각하는 열연의 냉각 장치이며, 상기 마무리 압연기의 최종 스탠드로부터 송출된 상기 강판의, 상기 최종 스탠드의 위치로부터 상기 강판의 표면 온도가 850℃ 이하로 되는 위치에 걸친 사이에 대하여, 3.9㎫ 이상의 장력을 가하면서 상기 강판을 끼움 지지하는 제1 핀치롤을 구비한다.
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公开(公告)号：KR101376007B1
公开(公告)日：2014-03-19
申请号：KR1020127014179
申请日：2009-12-15
Applicant: 미쯔비시 히다찌 세이떼쯔 기까이 가부시끼가이샤
CPC classification number: B21C47/247 , B21B1/36 , B21B15/0085 , B21B2015/0014 , B21B2015/0057 , B21B2015/0064 , B21B2263/20 , B21B2265/02 , B21B2275/06
Abstract: 냉간 압연재 설비 및 냉간 압연 방법에 있어서, 연간 생산량이 30만톤에서 60만톤 정도 중소규모의 생산 설비에 있어서, 고효율, 고수율을 유지하고, 또한 우수한 투자비용 대비 효과를 실현한다. 권출 장치(2)로부터 권출된 반입 코일(101a 내지 101c)은 접합 장치(5)에 의해 접합되고, 권취 권출 장치(6)에 있어서 외경이 φ3000 이하의 빌드업 코일(102)이 형성되고, 빌드업 코일(102)은 원하는 제품의 판 두께가 될 때까지 권취 권출 장치(3, 4) 사이에서 냉간 압연기(1)에 의해 소정 횟수 가역 압연되고, 최종 패스에서 빌드업 코일(102)은 냉간 압연기(1)에 의해 저속 압연(예를 들어 2mpm)되면서, 절단 장치(7a 또는 7b)에 의해 분단되어, 복수개의 반출 코일(103a 내지 103c)이 형성되고, 권취 권출 장치(3, 4)로부터 뽑아내져 반출된다.
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公开(公告)号：KR1020130055003A
公开(公告)日：2013-05-27
申请号：KR1020137007610
申请日：2011-09-05
Applicant: 미쯔비시 히다찌 세이떼쯔 기까이 가부시끼가이샤 , 신닛테츠스미킨 카부시키카이샤
CPC classification number: B21B1/26 , B21B37/76 , B21B38/02 , B21B39/006 , B21B39/08 , B21B45/0218 , B21B2261/20 , B21B2265/02 , B21C51/00
Abstract: 압연 직후의 급속 균일 냉각에 의해 원하는 재질이 얻어짐과 함께 조기의 판 장력 및 판 형상 계측에 의해 수율 향상이 가능한 열연 강대의 제조 장치 및 제조 방법을 제공하기 위해서, 마무리 압연기열 (11) 과, 그 마무리 압연기열의 출측 직후에 설치된 제 1 냉각 장치 (13) 와, 그 제 1 냉각 장치의 출측에 설치되어 스트립 (S) 의 상, 하 양면에 맞닿는 핀치 롤 (14) 을 구비함과 함께, 상기 제 1 냉각 장치와 핀치 롤 사이에 적어도 스트립 (S) 의 상방에 위치한 배수 롤 (15) 을 배치하고, 또한 그 배수 롤과 핀치 롤 사이에 스트립 (S) 의 장력 및 형상을 측정하는 장력/형상 측정 장치 (16) 를 설치하였다.
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公开(公告)号：KR1020050026100A
公开(公告)日：2005-03-15
申请号：KR1020030057912
申请日：2003-08-21
Applicant: 학교법인 건국대학교
IPC: B21B38/06
CPC classification number: B21B38/00 , B21B27/02 , B21B28/00 , B21B2261/04 , B21B2261/10 , B21B2265/02 , B21B2267/06 , B21B2275/06
Abstract: To provide a method for diagnosing a fault in shape of roll in a rolling system and identifying fault degree of roll shape such that parts having a certain level or more of fault degree are exchanged and repaired and exchanging rolls of which faults are found only to reduce expense incurred due to irregular roll replacement. The method for diagnosing a fault in roll shape comprises a step of inputting basic strip rolling conditions; a step of inputting thickness of strip at the output side after rolling; a step of obtaining rolling force corresponding to the input conditions and set value of changed roll radius; a step of dividing strip thickness inputted into N strip elements relative to a width direction of strip; a step of calculating an actual roll radius using thickness of the respective strip elements, the rolling force and the set value of the changed roll radius; and a step of obtaining a three-dimensional roll shape by linearly adding up information on roll radius corresponding to the respective strip elements, wherein the method further comprises a step of widthwise speed and tension of strip using information on thickness of strip at the input side ad the output side of a rolling mill, continuity equation and mathematical model on tension.
Abstract translation: 提供一种用于诊断轧制系统中辊的形状故障的方法，并且识别轧辊形状的故障程度，使得具有一定等级或更多的故障程度的部件被交换和修理，并且发现其中发现故障的辊只能减少 由于不规则的卷更换而产生的费用。 用于诊断辊状故障的方法包括输入基本条带滚动条件的步骤; 在轧制后的输出侧输入带材的厚度的步骤; 获得对应于输入条件的滚动力和改变的辊半径的设定值的步骤; 将条带厚度相对于条的宽度方向分割成N个条状元件的步骤; 使用各个带状元件的厚度计算实际辊半径的步骤，滚动力和变化的辊半径的设定值; 以及通过对与各个带状元件对应的辊半径线性相加的信息获得三维辊状的步骤，其中该方法还包括使用在输入侧的条带厚度的信息的条带的宽度方向和张力的步骤 广告轧机的输出端，张力的连续性方程和数学模型。
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