利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

72 条记录 (耗时 0.023 秒)

    열간 압연 방법
    2.
    发明公开
    열간 압연 방법 无效
    热轧方法

    公开(公告)号：KR1020160101153A

    公开(公告)日：2016-08-24

    申请号：KR1020167019708

    申请日：2013-12-24

    申请人： 아르셀러미탈

    发明人： 모레토크리스티앙 ,  페뜨니꼴라 ,  쿠뛰리에앙드레

    IPC分类号： B21B37/00 ,  B21B27/10 ,  B21B45/02

    CPC分类号： B21B1/22 ,  B21B27/10 ,  B21B37/00 ,  B21B45/0251 ,  B21B2001/225 ,  B21B2265/12 ,  B21B2265/20 ,  B21B2275/04 ,  B21B2275/06

    摘要： 본발명은, 적어도두 개의작업롤들을포함하는압연기의적어도하나의스탠드를통해반가공된금속제품의열간압연방법의파라미터들중 적어도하나 (a) 의조절방법에관한것으로, 조절방법은: - 이하의식을이용한전방슬립비 (FWS) 의계산단계;(여기서, υ은스탠드를통과하는반가공된금속제품의속도이고, 또한υ는작업롤들의선속도임), - 이전단계에서계산된전방슬립비 (FWS) 의그리고스탠드에서의작업롤들의클램핑힘 (F) 의측정된값의함수로서의추정마찰계수 (μ) 의계산단계; 및 - 계산된추정마찰계수 (μ) 에기초한파라미터들중 적어도하나 (α) 의조절단계를포함한다. 또한, 본발명은관련압연방법, 관련압연기및 관련컴퓨터프로그램에관한것이다.

    냉간압연기의 통판 시 롤압하력 제어방법
    6.
    发明公开
    냉간압연기의 통판 시 롤압하력 제어방법 有权
    冷轧过程中轧制力控制方法

    公开(公告)号：KR1020040056552A

    公开(公告)日：2004-07-01

    申请号：KR1020020083053

    申请日：2002-12-24

    申请人： 주식회사 포스코

    发明人： 이왕재 ,  홍종배 ,  구자전

    IPC分类号： B21B37/48

    CPC分类号： B21B37/58 ,  B21B2261/04 ,  B21B2265/12

    摘要： PURPOSE: A method for controlling roll force during threading in cold rolling mill is provided to prevent fracture, breakage or twisting of strip that can be generated during the initial threading operation by slowly increasing roll force from initial threading operation of the cold rolling mill to normal rolling operation of the cold rolling mill. CONSTITUTION: The method comprises a roll force initial value setting step of setting an initial roll force value in which a preset roll force value during normal rolling operation is reduced to a certain ratio according to thickness of strip manufactured by pressing of rolls; a threading time setting step of setting a threading time required from the initial threading operation to the normal operation; and a roll force control step of threading the strip as constantly increasing roll force from the initial roll force value to the set roll force value during the set threading time, wherein the certain ratio in the initial value setting step is 50 to 60%, and wherein the initial roll force value is a predetermined roll force lower limit value or more.

    摘要翻译： 目的：提供一种在冷轧机中进行螺纹加工时控制轧制力的方法，以通过将冷轧机的初始螺纹加工的轧制力缓慢提高到正常，防止在初始螺纹加工过程中产生的轧制断裂，破裂或扭曲 冷轧机的轧制操作。 构成：该方法包括：辊力初始值设定步骤，根据通过辊压制造的带材的厚度，将正常轧制操作期间的预设辊力值降低到一定比例的初始辊力值; 线程时间设定步骤，其将从初始穿线操作所需的穿线时间设置为正常操作; 以及辊设定步骤中的一定比例为50〜60％的轧制力控制步骤，其中，所述轧制力控制步骤将所述钢带作为不断增加的轧制力从所述初始轧制力值旋转到所述设定轧制力值， 其中，所述初始侧倾力值为预定的滚动力下限值以上。

    압연재 소성계수 보정에 의한 예측압연하중 보정방법
    7.
    发明公开
    압연재 소성계수 보정에 의한 예측압연하중 보정방법 有权
    通过校正滚动材料的塑性系数校正预测滚动力的方法

    公开(公告)号：KR1020040056055A

    公开(公告)日：2004-06-30

    申请号：KR1020020082587

    申请日：2002-12-23

    申请人： 주식회사 포스코

    发明人： 홍성철 ,  박철재 ,  김관수

    IPC分类号： B21B37/16

    CPC分类号： B21B37/58 ,  B21B37/165 ,  B21B2261/04 ,  B21B2261/06 ,  B21B2265/12 ,  B21B2271/02

    摘要： PURPOSE: A method for correcting predicted rolling force by correcting plastic coefficient of rolling material is provided to advance roll gap setting and improve thickness control response by obtaining coefficient for optimally correcting plastic coefficient and correcting prediction rolling force and plastic coefficient using the coefficient. CONSTITUTION: The method comprises first step of initializing the number of coils that predicts plastic coefficient correcting coefficient, coil number and thickness variation better; second step of correcting plastic coefficient per the respective stands by multiplying plastic coefficient per respective stands by the plastic coefficient correcting coefficient after reading coil rolling actual result data (rolling force, roll gap and thickness) corresponding to the coil number; third step of calculating rolling force per the respective stands, output side thickness variation per the respective stands and thickness variation of the final stand by thickness error generating factors (input side thickness change, operator roll gap adjustment and rolling mill setting error) per the respective stands; fourth step of calculating the sum of thickness variation of the final stand by the respective thickness error generating factors obtained in the third step; fifth step of increasing one coil number which is capable of predicting thickness variation better if an error between the calculated sum of thickness variation of the final stand and actually measured thickness variation values of the final stand is less than a critical value; sixth step of repeatedly performing the second step to the fifth step for all coils; seventh step of storing the plastic coefficient correcting coefficient and the coil number that is capable of predicting thickness variation better; eighth step of repeatedly performing the second step to the seventh step as subtracting a certain constant from the plastic coefficient correcting coefficient until the plastic coefficient correcting coefficient becomes zero; and ninth step of selecting the optimum plastic coefficient correcting coefficient after performing the eighth step and correcting predicted rolling force and plastic coefficient using the plastic coefficient correcting coefficient.

    摘要翻译： 目的：通过校正轧制材料的塑性系数来校正预测的轧制力的方法是为了提高轧辊间隙的设定，通过获得最佳校正塑性系数的系数和使用该系数校正预测轧制力和塑性系数来提高厚度控制响应。 构成：该方法包括初始化预测塑性系数校正系数，线圈数和厚度变化的线圈数的第一步骤; 在对应于线圈数的线圈滚动实际结果数据（滚动力，滚动间隙和厚度）的读取之后，通过将每个支架的塑料系数乘以塑料系数校正系数来校正每个支架的塑性系数的第二步骤; 计算每个支架的滚动力的第三步骤，每个支架的输出侧厚度变化和最终支架的厚度变化的厚度误差产生因子（输入侧厚度变化，操作辊间隙调整和轧机设置误差） 站立; 计算最终支架的厚度变化量的总和的第四步骤，通过在第三步骤中获得的各自的厚度误差产生因子; 增加一个线圈数的第五步骤，如果最终机架的计算的厚度变化的总和与实际测量的最终机架的厚度变化值之间的误差小于临界值，则能够更好地预测厚度变化; 针对所有线圈重复执行第二步骤至第五步骤的第六步骤; 存储能够更好地预测厚度变化的塑性系数校正系数和线圈数的第七步骤; 重复执行第二步骤至第七步骤的第八步骤，从塑料系数校正系数减去一定常数直到塑性系数校正系数变为零; 以及在执行第八步之后选择最佳塑性系数校正系数并使用塑性系数校正系数校正预测滚动力和塑性系数的第九步骤。

    루퍼 하중차를 이용한 열연판 사행 제어방법
    8.
    发明公开
    루퍼 하중차를 이용한 열연판 사행 제어방법 有权
    通过使用LOOPER LOAD的差异来控制热轧条纹的测量方法

    公开(公告)号：KR1020030052426A

    公开(公告)日：2003-06-27

    申请号：KR1020010082380

    申请日：2001-12-21

    申请人： 재단법인 포항산업과학연구원 ,  주식회사 포스코

    发明人： 홍완기

    IPC分类号： B21B37/50

    CPC分类号： B21B37/68 ,  B21B38/08 ,  B21B2265/12 ,  B21B2273/04

    摘要： PURPOSE: A method for controlling meandering of a hot rolled strip is provided to control the meandering between stands by comparing algorithms predicting the meandering between the stands. CONSTITUTION: A meandering degree on a looper roll is assumed by replacing an equation, which is obtained based on a relationship between a camber angle derived from a mill integer deviation of a rolling stand(1) and a curvature due to the meandering, with a relation equation between mill integer and wandering pressure. A load difference between a working side and a driving side of a looper roll is detected by using a load difference sensing inter-stand looper so as to predict and calculate the meandering degree between rolling mills. If the meandering is not derived from a wedge of a stuff, driving pressure and wandering pressure are controlled in order to correct the meandering of the hot rolled strip.

    摘要翻译： 目的：提供一种用于控制热轧带材弯曲的方法，通过比较预测机架之间曲折的算法来控制机架之间的蜿蜒曲折。 构成：通过替换基于从轧机机架（1）的轧制整数偏差导出的外倾角与由于蜿蜒曲率而产生的曲率之间的关系而获得的等式来假设弯针辊上的曲折度， 轧制整数和流动压力之间的关系式。 通过使用负载差异检测支架触针来检测活套辊的工作侧和驱动侧之间的负载差，以便预测和计算轧机之间的曲折度。 如果蜿蜒不是源自一块东西，驱动压力和流动的压力被控制，以便纠正热轧带材的蜿蜒曲折。

    압력발신기를 이용한 압하제어장치
    9.
    发明公开
    압력발신기를 이용한 압하제어장치 有权
    使用压力变送器的滚动力控制系统

    公开(公告)号：KR1020030035564A

    公开(公告)日：2003-05-09

    申请号：KR1020010067674

    申请日：2001-10-31

    申请人： 주식회사 포스코

    发明人： 박상규 ,  신인섭 ,  박상범

    IPC分类号： B21B37/58

    CPC分类号： B21B37/62 ,  B21B38/08 ,  B21B2265/12 ,  B21B2267/06

    摘要： PURPOSE: A roll force control system using pressure transmitter is provided to obtain actual roll force by installing the pressure transmitter different from an existing magneto-elastic load cell for detecting strip roll force on hydraulic pipe of rolling mill cylinder and automatically compensating weight of lower back up roll and work roll. CONSTITUTION: The roll force control system using pressure transmitter comprises a power supply unit, a pressure transmitter(42), a first signal processing part(431), a second signal processing part(432), a first signal compensation part(441) and a second signal compensation part(442), wherein the power supply unit(41) supplies DC power to the pressure transmitter(42), the pressure transmitter(42) detects pressure of hydraulic cylinder of both sides, the first signal processing part(431) and the second signal processing part(432) receive output of the pressure transmitter(42) and convert the output of the pressure transmitter(42) into pressures (P1,P2) so that the converted pressures (P1,P2) are force signals (F1,F2) by mathematical expressions 1 and 2 (F1=P1xS1, where P1 is pressure, S1 is cross sectional area of cylinder)(F2=P2xS2, where P2 is pressure, S2 is cross sectional area of cylinder), the first signal compensation part(441) and second signal compensation part(442) receive force signals (F1,F2) from the first signal processing part(431) and second signal processing part(432) and receive back up roll diameter and work roll diameter from PLC (programmable logic controller) so that actual roll forces (Rf1,Rf2) are calculated by mathematical expressions 5 and 6 (Rf1=F1-(BRw+WRw)/2, where BRw is weight of back up roll, WRw is weight of work roll)(Rf2=F2-(BRw+WRw)/2, where BRw is weight of back up roll, WRw is weight of work roll) after calculating lower back up roll weight and lower work roll weight using mathematical expressions 3 and 4 (BRw=K1xX+K2, where K1, K2 is constant, respectively, X is diameter of back up roll)(WRw=K3xY+K4, where K3 and K4 is constant, respectively, Y is diameter of work roll), and the actual roll forces (Rf1,Rf2) are feedback inputted into a roll force control unit(24) again.

    摘要翻译： 目的：提供使用压力变送器的辊力控制系统，通过安装不同于现有的磁力测力传感器的压力变送器来获得实际的轧制力，用于检测轧制机筒液压管上的轧制力，并自动补偿下背面的重量 上卷和工作卷。 构成：使用压力变送器的辊力控制系统包括电源单元，压力变送器（42），第一信号处理部（431），第二信号处理部（432），第一信号补偿部（441）和 第二信号补偿部分（442），其中电源单元（41）向压力变送器（42）供应直流电力，压力变送器（42）检测两侧液压缸的压力，第一信号处理部分 ）和第二信号处理部分（432）接收压力变送器（42）的输出并将压力变送器（42）的输出转换成压力（P1，P2），使得转换压力（P1，P2）是力信号 （F1 = P1xS1，P1为压力，S1为圆筒的截面积）（F2 = P2xS2，P2为压力，S2为圆筒的截面积），第1 信号补偿部（441）和第二信号补偿部（442）接收fo 从第一信号处理部分（431）和第二信号处理部分（432）获取rce信号（F1，F2），并从PLC（可编程逻辑控制器）接收备份辊直径和工作辊直径，使得实际的卷力（Rf1，Rf2 ）通过数学表达式5和6（Rf1 = F1-（BRw + WRw）/ 2）计算，其中BRw是备份辊的重量，WRw是工作辊的重量）（Rf2 = F2-（BRw + WRw）/ 2 ，其中BRw是备份辊的重量，WRw是工作辊的重量），在使用数学表达式3和4（BRw = K1xX + K2，其中K1，K2分别是常数）计算较低的后备卷重和较低的工作辊重量之后 ，X是支撑辊的直径）（WRw = K3xY + K4，其中K3和K4分别为常数，Y是工作辊的直径），实际的辊力（Rf1，Rf2）被反馈输入到辊力 控制单元（24）。

    폭압하량 결정방법
    10.
    发明公开
    폭압하량 결정방법 无效
    用于确定宽度滚动减少的方法

    公开(公告)号：KR1020020051474A

    公开(公告)日：2002-06-29

    申请号：KR1020000080545

    申请日：2000-12-22

    申请人： 주식회사 포스코 ,  재단법인 포항산업과학연구원

    发明人： 천명식

    IPC分类号： B21B37/58

    CPC分类号： B21B37/22 ,  B21B37/58 ,  B21B2261/06 ,  B21B2265/12

    摘要： PURPOSE: A method is provided to appropriately distribute width rolling reduction per width rolling passes when additionally arranging a sizing press in hot rough rolling, and determine width rolling reduction per width rolling passes so as to reach to a target width of the rough rolling. CONSTITUTION: The method for determinating width rolling reduction in hot rough rolling comprises the steps of obtaining a target width variation(slab width-coil width) from rolling conditions of a slab size and a coil size, and deducing a width rolling reduction corresponding to the width variation by a sizing press; deducing a width rolling reduction in the allowable conditions in case that the reduction force exceeds a press allowable width reduction force by calculating a reduction force required in rolling reducing the target width rolling reduction of the first step with the sizing press; performing the large width rolling reduction from the width rolling reduction determined in the second step, and calculating thickness rolling reduction and width widened amounts per passes based on a horizontal reduction force distribution ratio; and determining target widths per passes by obtaining the width widened amounts per horizontal rolling passes in the third step, and repeatedly calculating width rolling reductions per width rolling passes reaching to the obtained width widened amounts per width rolling passes.

    摘要翻译： 目的：提供一种在热轧粗加工中另外设置施胶压榨机的情况下，适当地分配宽度轧制倍率的宽度轧制通过量，并且确定宽幅轧制每宽轧制通过以达到粗轧的目标宽度。 构成：用于确定热轧粗轧中的宽度压下率的方法包括以下步骤：从板坯尺寸和线圈尺寸的轧制条件获得目标宽度变化（板宽度线圈宽度），并且推导对应于 通过施胶压力机的宽度变化; 在压缩力超过压制容许宽度减小力的情况下，通过计算轧制所需的压下力来减小第一步骤的目标宽度轧制压下量，从而推定容许条件下的宽度压下率; 根据第二步骤确定的宽度压下率进行大幅度轧制压缩，并且基于水平减小力分配比计算每个通过的厚度轧制压下量和宽度加宽量; 并且通过获得第三步骤中的每个水平轧制道次的宽度加宽量来确定每道次的目标宽度，并且重复地计算每宽度轧制的宽度轧制减少量，达到所获得的每宽度轧制通过的宽度加宽量。