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公开(公告)号：KR100805065B1
公开(公告)日：2008-02-20
申请号：KR1020060098563
申请日：2006-10-10
IPC分类号： B21B39/14
摘要： A method and an apparatus for adjusting positions of preceding and following metal strips in the width direction and a continuous rolling mill used in the same are provided to reduce width displacement as much as possible at a joining position of the metal strips, make it possible to correct bending by a side guide unit displaced at the entrance side of a finish rolling mill, and perform a finish rolling operation while reducing bending of the entire lengths of the metal strips. An apparatus for adjusting positions of preceding and following metal strips in the width direction comprises: a joining unit for joining a tail end of a preceding sheet bar that proceeds in the pass line direction with a top end of the preceding sheet bar; first and second bending-measuring instruments(20,21) for detecting the bending state of the tail end of the preceding sheet bar and a top end of a following sheet bar before joining the tail end of the preceding sheet bar with the top end of the following sheet bar; fourth and fifth longitudinal roller pairs(25a,25b,26a,26b) for moving at least one of the preceding sheet bar and the following sheet bar in the width direction from a joining position; and a control device(30) for controlling driving of the fourth and fifth longitudinal roller pairs based on detection signals from the first and second bending-measuring instruments to reduce displacement in the width directional center of the tail end of the preceding sheet bar and the top end of the following sheet bar at the joining position.
摘要翻译： 提供一种用于调整宽度方向上的前后金属带的位置的方法和装置以及在其中使用的连续轧制机，以在金属带的接合位置尽可能地减小宽度位移， 通过在精轧机的入口侧移位的侧导向单元的正确弯曲，并且在减少金属带的整个长度的弯曲的同时进行精轧操作。 一种用于调整前后金属带在宽度方向上的位置的装置包括：接合单元，用于将在传送线方向上行进的前一个薄板坯的尾端与前一个薄板的顶端相接合; 第一和第二弯曲测量仪器（20,21），用于检测前面的薄板坯的尾端的弯曲状态，以及在将前一个薄板坯的尾端连接到前一个薄板的前端之前的后续薄板坯的顶端 以下表格栏; 用于从接合位置沿宽度方向移动前述板材和后续板材中的至少一个的第四和第五纵向辊对（25a，25b，26a，26b） 以及控制装置（30），用于基于来自第一和第二弯曲测量仪器的检测信号来控制第四和第五纵向辊对的驱动，以减少在前的薄板坯的尾端的宽度方向中心的位移，以及 在接合位置的下一个薄钢板的顶端。
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公开(公告)号：KR101629754B1
公开(公告)日：2016-06-21
申请号：KR1020140190127
申请日：2014-12-26
申请人： 주식회사 포스코
CPC分类号： B21B37/64
摘要： 본발명의일 실시예에의한에저롤영점조절방법은, 대폭압연기, 조압연기및 사상압연기를구비하여슬라브를강판으로압연하는압연장치에입력되는압연조건및 상기압연장치에서제조되는강판의압연실적을수집하는데이터수집단계; 상기조압연기에설치되며, 슬라브를폭방향으로압연하는에저롤을교체하는에저롤교체단계; 상기에저롤교체전후의상기압연조건을비교하는압연조건비교단계; 상기에저롤교체후의상기압연실적을측정하는압연실적측정단계; 상기에저롤교체전후의상기압연실적을비교하는압연실적비교단계; 상기압연실적비교결과에따라상기에저롤간간격의보상값을연산하는보상값연산단계; 및상기보상값에따라상기에저롤간의간격을조절하는보상단계를포함한다.
摘要翻译： 本发明涉及一种根据本发明的一个实施例的调整卷边机的零点的方法。 调整修边辊的零点的方法包括：数据收集步骤，将输入到轧制装置的轧制装置的轧制条件收集到钢板中，以及通过在轧制装置中制造的钢板的轧制记录， 大型轧机，粗轧机，精轧机; 修边辊移位步骤，用于移动安装在粗轧机中的磨边辊，并在宽度方向上轧制板坯; 轧制条件比较步骤，比较在轧辊的位移前后的轧制条件; 轧制记录测量步骤，用于在轧辊移位之后测量轧制记录; 滚动记录比较步骤，用于比较在纬纱辊的位移之前和之后的轧制记录; 补偿值计算步骤，根据滚动记录的比较结果计算修边辊之间的间隙的补偿值; 以及补偿步骤，根据补偿值控制修边辊之间的间隙。
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公开(公告)号：KR101481621B1
公开(公告)日：2015-01-12
申请号：KR1020130110861
申请日：2013-09-16
申请人： 주식회사 포스코
发明人： 장영상
IPC分类号： B21B38/06
摘要： 본 발명은 스탠드별 압연하중 예측방법에 관한 것으로, 압연기의 스탠드별 압연하중 실적값(P₁) 및 상기 스탠드들 사이의 스트립에 걸리는 장력 실적값이 측정되는 실적측정단계와; 상기 스탠드별 압연하중 목표값(P)이 산출되는 목표산출단계와; 기설정된 장력 목표값과 상기 장력 실적값의 편차인 장력편차가 산출되는 편차산출단계와; 상기 장력편차가 상기 압연하중 목표값에 미치는 영향도가 산출되는 영향도 산출단계와; 상기 영향도와 상기 압연하중 실적값(P₁)을 이용하여 장력을 고려한 압연하중 값(P₂)이 산출되는 하중산출단계와; 상기 압연하중 목표값(P)과 상기 압연하중 값(P₂)을 이용하여 압연하중 보정값이 산출되는 보정값산출단계;를 포함한다.
摘要翻译： 本发明涉及一种用于预测每个支架的铣削负载的方法，包括以下步骤：测量铣床的每个支架的实际铣削负载值（P_1）以及施加到支架之间的带材的实际张力值; 计算每个支架的目标铣削负载值（P）; 计算目标张力值与实际张力值之间的张力偏差; 计算出一个影响，即张力偏差对目标铣削载荷值有影响; 通过使用效果和实际铣削负载值（P_1），考虑到张力来计算铣削负载值（P_2）; 以及通过使用目标铣削负载值（P）和铣削负载值（P_2）来计算铣削负载校正值。
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公开(公告)号：KR1020130128820A
公开(公告)日：2013-11-27
申请号：KR1020120052861
申请日：2012-05-18
申请人： 주식회사 포스코
发明人： 장영상
IPC分类号： B21B15/00
摘要： Disclosed are a method for dividing a hot rolled strip and a system thereof capable of producing at least two hot rolled coils by using one material without changing a manufacturing line. The method for dividing a hot rolled strip of the present invention includes: a strip division location determining process for determining a strip shearing location; a strip length calculating process for measuring the length of a strip which is transferred to a high speed shear part by passing through a finishing mill; a length comparing process for comparing the length of a strip which is to be divided and is resulted from the strip division location determining process with the length of a strip which is resulted from the strip length calculating process; and a strip dividing process for shearing the strip in the event where the length of the strip which is resulted from the strip length calculating process is the same as or larger than the length of the strip which is to be divided and is resulted from the strip division location determining process. [Reference numerals] (AA) Start;(BB) Division number determining process;(CC) Strip division location determining process;(DD) Length calculating process;(EE) Comparing process;(FF) Strip division process;(GG) Winding process;(HH) End
摘要翻译： 公开了一种用于分割热轧带材及其系统的方法，其能够通过使用一种材料而不改变生产线来生产至少两个热轧卷材。 本发明的热轧带材的分割方法包括：条带分割位置确定方法，用于确定带材剪切位置; 用于测量通过精轧机转移到高速剪切部分的条带的长度的条带长度计算过程; 用于比较由条带分割位置确定过程产生的待分割的条带的长度与由条带长度计算过程产生的条带的长度的长度比较处理; 以及在由条带长度计算过程产生的条带的长度等于或大于要被划分并由条带产生的条带的长度的情况下剪切条带的条带分割处理 分区位置确定过程。 （AA）开始;（BB）分割数确定过程;（CC）条带分割位置确定过程;（DD）长度计算过程;（EE）比较过程;（FF）条带分割过程;（GG） 过程;（HH）结束
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公开(公告)号：KR1020060075274A
公开(公告)日：2006-07-04
申请号：KR1020040114045
申请日：2004-12-28
申请人： 주식회사 포스코
发明人： 장영상
IPC分类号： B21B1/26
摘要： 본 발명은 연속 열간압연공정에서 선행재와 후행재의 압연순서를 사상압연기에서 압연시 걸리는 압연하중이 비슷한 순서로 압연할 수 있도록 하여 압연하중의 차이를 최소화시킴으로서 연속하는 선행재의 후단부와 후행재의 선단부인 접합부의 사상압연기에서의 통판성을 안정시킬 수 있는 연속 열간압연 공정의 압연순서 결정방법을 제공한다.
이를 위하여 본 발명은 선행재의 후단부와 후행재의 선단부를 중첩하여 접합기로 상기 중첩부를 접합한 상태로 다수의 압연재를 연속해서 열간압연공정을 실시하는 공정에 있어서, 상기 각 압연재에 대하여 사상압연시의 압연하중(P)을 이용하여 압연 순서를 결정하는 것을 특징으로 하는 연속 열간압연에서의 압연순서 결정방법을 제공한다.
연속 열간압연, 접합기, 압연 순서, 압연하중, 접합부 통판성-
公开(公告)号：KR1019980049997A
公开(公告)日：1998-09-15
申请号：KR1019960068749
申请日：1996-12-20
申请人： 주식회사 포스코 , 재단법인 포항산업과학연구원
IPC分类号： B21B37/00
摘要： 본 발명은 열갑 압연하중 예측정밀도 개선방법에 관한 것으로, HSS롤(High Speed Steel Roll)을 사용하여 압연할 경우 종래 Hi-Cr롤 열간 압연하중 예측식으로부터 기인된 압연하중 예측편자를 줄이기 위하여 편차발생의 주요인인 롤의 마찰계수(μ)를 보정함으로써 HSS롤 연간 압연하중 예측정밀도를 개선하는 방법을 그 요지로 하며, 상기 방법으로 롤갭의 크기 및 압연판의 두께를 더욱 정확히 조절할 수 있도록 한다.
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公开(公告)号：KR100423422B1
公开(公告)日：2004-03-19
申请号：KR1019990050107
申请日：1999-11-12
申请人： 주식회사 포스코
IPC分类号： B21B1/16
摘要： PURPOSE: A method for rolling hot tapered bar is provided to reduce temperature difference between the top portion and tail portion of the tapered bar by decreasing or increasing the thickness from the top portion to the tail portion. CONSTITUTION: A method comprises the steps of setting thickness decreasing or increasing volume from the top to the tail portion of the bar; obtaining the estimated length of the bar after rolling and calculating the time taken for roughing process; calculating a control frequency(n) by utilizing the calculated time taken for roughing process; calculating a unit control volume for the bar thickness by utilizing the control frequency and set thickness decreasing or increasing volume; and decreasing or increasing the thickness of the bar from the top to the tail portion of the bar at a predetermined control cycle in accordance with the calculated unit control volume.
摘要翻译： 目的：提供一种用于轧制热锥形棒的方法，以通过减小或增加从顶部到尾部的厚度来减小锥形棒顶部和尾部之间的温差。 组成：一种方法包括以下步骤：设定厚度减小或从杆的顶部到尾部增加体积; 获得轧制后棒料的估计长度并计算粗加工过程所需的时间; 利用计算出的粗加工处理所需的时间来计算控制频率（n） 通过利用控制频率和设定的厚度减小或增大的体积来计算钢坯厚度的单位控制量; 以及根据计算出的单位控制量，在预定的控制循环中减小或增加杆从杆的顶部到尾部的厚度。
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公开(公告)号：KR1020030037438A
公开(公告)日：2003-05-14
申请号：KR1020010068467
申请日：2001-11-05
申请人： 주식회사 포스코
IPC分类号： B21B37/72
CPC分类号： B21B37/72 , B21B37/22 , B21B38/00 , B21B2261/04 , B21B2275/02
摘要： PURPOSE: A method for compensating width shortage due to over-tension during finish rolling by increasing width and length of the bar in advance when rolling the width of the top and tail parts of bar in rough rolling process is provided. CONSTITUTION: The method for rolling width of top and tail parts of bar in hot rolling process comprises first step (S710) of setting the increased amount of width and length of the increasing part during rolling of the top and tail parts of the bar on the basis of actual results of width shortage of the top and tail parts per thickness of a strip completing finish rolling; second step (S702) of obtaining width increasing control length using the length of the width increasing part and thickness of the input side bar of each passes; third step (S703) of obtaining rough rolling threading time from the control initiation time point to width rolling completion time by setting a control initiation time point on the basis of the control length; fourth step (S704,S705) of obtaining total control number of times using the rough rolling threading time and obtaining control amount of bar width of one time using the obtained total control number of times; and fifth step (S706) of controlling the width to the tail part of the bar in a direction that the width is increased to a certain control cycle as much as the obtained control amount of bar width of one time at the width increasing control initiation time point of the bar.
摘要翻译： 目的：提供一种通过在粗轧过程中轧制棒的顶部和尾部的宽度而预先增加棒的宽度和长度来补偿精轧期间由于过度张力导致的宽度短缺的方法。 构成：热轧过程中棒材顶部和尾部轧制宽度的方法包括第一步骤（S710），其设置在棒材的顶部和尾部的轧制过程中增加部分的宽度和长度的增加量 根据完成轧制的钢带的每个厚度的顶部和尾部的宽度短缺的实际结果的基础; 使用每个通道的宽度增加部分的长度和输入侧栏的厚度获得宽度增加控制长度的第二步骤（S702） 通过基于控制长度设定控制开始时间点，从控制开始时间点到宽度滚动完成时间，获得粗轧时间的第三步骤（S703） 第四步骤（S704，S705），使用粗轧时间获得总控制次数，并使用获得的总控制次数获得一次的条宽控制量; 以及第五步骤（S706），其在宽度增加到一定的控制周期的方向上控制条的尾部的宽度，与获得的宽度增加控制开始时间的一次的条宽度的控制量一样多 点的点。
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公开(公告)号：KR100362662B1
公开(公告)日：2003-02-19
申请号：KR1019980053960
申请日：1998-12-09
申请人： 주식회사 포스코
IPC分类号： B21B37/00
摘要： PURPOSE: A method for controlling a widthwise shape of a hot rolling steel plate is provided to obtain a good widthwise shape of the hot rolling steel plate by controlling a roll bending force and preventing a profile defect caused by the excessive setup of a fair cross and a work roll bender. CONSTITUTION: A target plate profile is set up and is rolled under the initial bending force. This time of the plate profile is measured so that the measured plate profile is indicated as an approximate function. The coefficient of the approximate function is obtained by the minimum involution. Next, thickness to plural plate widthwise points is obtained by putting the coefficient in the approximate function, and an average profile is obtained. After, a gap between the target plate profile and the average is obtained, a calibration bending force is obtained by using the gap. Accordingly, the initial bending force is calibrated as much as the calibration bending force.
摘要翻译： 目的：提供一种用于控制热轧钢板的横向形状的方法，以通过控制辊弯曲力并防止由于过度设置正十字引起的轮廓缺陷而获得热轧钢板的良好的宽度方向形状，以及 工作辊弯曲机。 组成：目标板轮廓设置并在初始弯曲力下滚动。 测量该板轮廓的这个时间，使得测量的板轮廓被表示为近似的功能。 近似函数的系数由最小对合得到。 接下来，通过将该系数置于近似函数中获得多个板宽度点的厚度，并且获得平均轮廓。 之后，获得目标板轮廓和平均值之间的间隙，通过使用间隙获得校准弯曲力。 因此，初始弯曲力与校准弯曲力一样多地校准。
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公开(公告)号：KR100349164B1
公开(公告)日：2002-12-26
申请号：KR1019950068460
申请日：1995-12-30
申请人： 주식회사 포스코 , 재단법인 포항산업과학연구원
IPC分类号： B21B37/00
摘要： PURPOSE: A method for controlling temperature of strip in hot finishing mill is provided to increase accuracy of temperature control by analyzing a correlation between surface temperature of thickness direction and average temperature for a series of various conditions using numerical analyzing model. CONSTITUTION: The method for controlling temperature of strip in hot finishing mill comprises the steps of dividing hot finishing mill process into air cooling region between the outlet side of rough rolling and the inlet side of finishing rolling, air cooling region during rolling, water cooling region, rolling region, and air cooling region at the outlet side of finishing rolling; predicting surface temperature of rolling material in each of the regions and average temperature of the rolling material in the air cooling region after finishing rolling, and obtaining an error by comparing the predicted surface temperature of rolling material and average temperature of the rolling material with actually measured surface temperature of the rolling material; and controlling hot rolling conditions to minimize the obtained error.
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