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公开(公告)号:KR1020030053610A
公开(公告)日:2003-07-02
申请号:KR1020010083366
申请日:2001-12-22
申请人: 주식회사 포스코
IPC分类号: B21B37/16
CPC分类号: B21B37/42 , B21B2261/04 , B21B2265/02 , B21B2265/14 , B21B2267/28 , B21B2269/04 , B21B2269/16
摘要: PURPOSE: A method for controlling edge drop of high strength ultra-thin strip in tandem mill is provided to reduce thickness deviation of strip in profile direction during cold rolling of the high strength ultra-thin strip. CONSTITUTION: In a method for controlling thickness deviation of tandem mill in profile direction for rolling high strength ultra-thin strip, the method for controlling edge drop of high strength ultra-thin strip in tandem mill comprises a step of positioning rolling rolls at both end parts of strip to be rolled; and a step of reducing bending and elastic strain of work rolls for reducing the amount of edge drop, wherein rolling rolls both ends of which are formed in a conical shape are used as rolling rolls of the tandem mill, wherein the step of positioning rolling rolls at both end parts of strip to be rolled satisfies the following expression 1: WRδ=(BL-W)/2+EL-TL, where WRδ is horizontal moving distance of work rolls, BL is length of barrel of the work rolls, W is width of the work rolls, EL is length of a tapered part touching the strip, and TL is length of the tapered part, and wherein the step of reducing bending and elastic strain of work rolls for reducing the amount of edge drop satisfies the following expression 2: ED=-axDraft+bxTension+cxBender-dxShift, where ED is thickness deviation in profile direction, Draft is reduction ratio, Tension: tension, Bender: work roll bender, Shift: intermediate roll shift, and a, b, c and d: coefficients.
摘要翻译: 目的:提供一种用于控制串列式轧机中高强度超薄带边缘下降的方法,以减少高强度超薄带冷轧过程中钢带在型材方向上的厚度偏差。 构成:在用于轧制高强度超薄带材的纵向轧机的型材方向厚度偏差的方法中,用于控制串列式轧机中高强度超薄带材边缘下落的方法包括在两端定位轧辊的步骤 待轧条的部分; 以及将两端形成为圆锥状的轧制辊用作减少边缘落下量的工作辊的弯曲和弹性应变的工序,作为串列式轧机的轧制辊,其中定位轧辊的步骤 在轧制带的两端部满足以下表达式1:WRδ=(BL-W)/ 2 + EL-TL,其中WRδ是工作辊的水平移动距离,BL是工作辊的桶长度,W 是工作辊的宽度,EL是接触带的锥形部的长度,TL是锥形部的长度,并且其中减少边缘下降量的工作辊的弯曲和弹性应变的步骤满足以下 表达式2:ED = -axDraft + bxTension + cxBender-dxShift,其中ED是轮廓方向上的厚度偏差,牵伸是减速比,张力:张力,弯曲机:工作辊弯曲机,换档:中间辊位移,和a,b,c 和d:系数。
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公开(公告)号:KR1019950009910B1
公开(公告)日:1995-09-01
申请号:KR1019880000490
申请日:1988-01-22
申请人: 가부시끼가이샤 히다치 세이사꾸쇼
发明人: 오찌아이쓰네오
IPC分类号: B21B13/18
CPC分类号: B21B37/42 , B21B1/24 , B21B13/023 , B21B13/142 , B21B2263/02 , B21B2267/19 , B21B2267/24 , B21B2269/04 , B21B2269/14
摘要: 내용 없음.
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公开(公告)号:KR1020170100655A
公开(公告)日:2017-09-04
申请号:KR1020177021365
申请日:2015-12-03
发明人: 호헨비츨러,제랄드
IPC分类号: B22D11/128 , B21B27/08
CPC分类号: B21B37/32 , B21B27/05 , B21B27/08 , B21B37/42 , B21B39/10 , B22D11/0651 , B22D11/1287 , B65G13/065 , F16C2322/12
摘要: 본발명은야금플랜트용롤러(1)에관한것이다. 본발명의목적은, 롤러(1)의캠버가단순하고강건한방식으로설정될수 있도록롤러(1)를변경하는것이다. 본목적은, 롤러축(2)이링(4)을통해하나의지점에서, 바람직하게는적어도두 개의지점들에서롤러쉘(3)에연결되고, 링(4)이가열엘리먼트(5)를가지며, 링(4)의높이(H)가가열엘리먼트(5)의가열의결과로서ΔΗ만큼변화될수 있다는점에서달성된다.
摘要翻译: 本发明涉及用于冶金设备的辊子(1)。 本发明的一个目的是改变辊子1,从而能够以简单且坚固的方式设定辊子1的外倾角。 该目的通过以下方式实现,即辊轴2通过钻头4在一个点处,优选至少两个点与辊壳3连接,并且环4具有热元件5 由于加热元件5的加热,环4的高度H可以改变ΔHz。
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公开(公告)号:KR101631046B1
公开(公告)日:2016-06-15
申请号:KR1020157024705
申请日:2014-03-05
申请人: 에이비비 테크놀로지 리미티드
发明人: 모덴페르-에릭
IPC分类号: B21B37/42
摘要: 본발명은, 복수의액추에이터들에의해제어될수 있는롤들을포함하는밀에서스트립을압연하기위한평탄성제어를조정하는방법에관한것으로, 상기밀은밀 행렬에의해모델링된다. 상기방법은, a) 각각의액추에이터에대한등가이동범위를수득하는단계, b) 상기등가이동범위에기초하여상기밀 행렬을스케일링함으로써스케일링된밀 행렬을결정하는단계, 및 c) 상기액추에이터들에의해상기스트립의평탄성제어를제공하기위해상기스케일링된밀 행렬의특이값분해를수득하는단계를포함한다. 상기방법을수행하는컴퓨터프로그램및 제어시스템이또한본원에개시된다.
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公开(公告)号:KR1020040006538A
公开(公告)日:2004-01-24
申请号:KR1020020040838
申请日:2002-07-12
申请人: 주식회사 포스코
IPC分类号: B21B37/16
CPC分类号: B21B37/42 , B21B2263/04 , B21B2269/02
摘要: PURPOSE: A method for controlling shape of strip in pair cross rolling mill according to full length strain difference is provided to obtain the optimum shape of hot rolled strip and prevent actual yield reduction and quality deterioration due to shape defects by minimizing strain difference generated in width direction of strip as satisfying target crown of strip. CONSTITUTION: In a shape control method for controlling crown of strip by controlling pair cross and bender force, the method for controlling shape of strip in pair cross rolling mill is characterized in that shape of the strip is controlled by minimizing deviation of crown strain difference at a position having the highest crown deviation during controlling of strip crown by combination of pair cross angle and bender force, wherein the position having the highest crown deviation is positioned in the range of 0.5x£strip width/2| - 0.6x£strip width/2| from the center of the strip, and wherein the optimum strain difference (εqi) positioned in the range of 0.5x£strip width/2| - 0.6x£strip width/2| from the center of the strip is calculated by the following expression: εqi=1/2xεi, where εqi is strain difference at a position corresponding to 1/4 width from the edge of the strip, and εi is the conventional optimum strain difference at a position that is 25 mm distanced from the edge of the strip.
摘要翻译: 目的:提供一种根据全长应变差来控制成对轧制轧辊的形状的方法,以获得热轧带材的最佳形状,通过最小化宽度产生的应变差来防止由于形状缺陷导致的实际产量降低和质量劣化 条带的方向满足条带的目标冠。 构成:在通过控制对交叉和弯曲力来控制带材顶部的形状控制方法中,用于控制成对轧制机中的带材形状的方法的特征在于通过使顶板应变差的偏差最小化来控制带材的形状 通过组合交叉角度和弯曲力来控制带状凸起处理中具有最高冠部偏移的位置,其中具有最高冠部偏离的位置位于0.5×2×宽度/ 2 / - 0.6x£条宽/ 2 | 从条带的中心,并且其中位于0.5×£条宽度/ 2 |的范围内的最佳应变差(εqi) - 0.6x£条宽/ 2 | 从条带的中心通过以下表达式计算:εqi= 1 /2xεi,其中εqi是在与条带边缘对应的1/4宽度的位置处的应变差,εi是常规的最佳应变差 距离条带边缘25mm的位置。
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公开(公告)号:KR1020020087213A
公开(公告)日:2002-11-22
申请号:KR1020010026239
申请日:2001-05-14
申请人: 주식회사 포스코
IPC分类号: B21B37/68
CPC分类号: B21B37/42 , B21B27/10 , B21B38/02 , B21B2027/103 , B21B2263/04 , B21B2269/04
摘要: PURPOSE: A method for controlling local shape of ultra thin steel strip with high strength in cold rolling machine is provided to control in a continuous rolling machine in order to prevent failure of shape possibly being in central part of the ultra thin steel strip during rolling process. CONSTITUTION: The method comprises a step of receiving value of smoothness (εi) detected from a shape detector(5) mounted on lower portion of an ultra thin steel strip and calculating shape deviation (Δε) according to a specified equation of Δε = εi - εri (where εi is a practical smoothness and εri is a desired smoothness) to quantify the failed portion; and another step of opening/closing valves of two cooling machines(10, 11) for an upper working roll and a lower working roll(2, 2'), respectively, located at output side of a final stand to cool the rolls and to carry out roll-bender and shift procedure, so that it makes the shape deviation (Δε) to be substantially '0'.
摘要翻译: 目的:提供一种控制冷轧机高强度超薄钢带局部形状的方法,以控制轧制过程中的超薄钢带的中心部分形状的破坏, 。 构成:该方法包括从安装在超薄钢带的下部上的形状检测器(5)检测出的平滑度值(εi)的步骤,并根据指定的Δε=εi-Δ方程计算形状偏差(Δε) εri(其中εi是实际平滑度,εri是期望的平滑度)以量化失效部分; 以及分别位于最终机架的输出侧的用于上工作辊和下工作辊(2,2')的两个冷却机(10,11)的开/关阀的另一步骤,以冷却辊,并且 进行折弯和移位程序,使得形状偏差(Δε)大致为“0”。
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公开(公告)号:KR1019900009128B1
公开(公告)日:1990-12-22
申请号:KR1019850001288
申请日:1985-02-28
申请人: 제이에프이 스틸 가부시키가이샤
CPC分类号: B21B37/42 , B21B1/26 , B21B31/18 , B21B2027/022 , B21B2269/04 , B21B2269/14
摘要: 내용 없음.
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公开(公告)号:KR1020110071056A
公开(公告)日:2011-06-28
申请号:KR1020110056793
申请日:2011-06-13
申请人: 가부시키가이샤 히타치세이사쿠쇼
发明人: 핫또리사또시
IPC分类号: B21B37/42
CPC分类号: B21B37/42 , B21B31/20 , B21B38/00 , B21B2203/18 , B21B2263/04
摘要: PURPOSE: A shape control apparatus and a shape control method are provided to shift a second roll to a desired position when the second roll rolls at a shiftable rolling speed to supplement lack of warpage of a first roll. CONSTITUTION: A shape control apparatus comprises a first roll(11), a second roll(13), a third roll(14), and a roll location compensation part. The first roll changes warpage and varies pressure of roller between rolled materials. The second roll changes the location of a formed taper to vary the pressure of roller between the rolled materials. The third roll controls shape of the rolled material according to pressure of the second roll and the first roll. The roll location compensation part corrects the taper position of the second roll.
摘要翻译: 目的:提供一种形状控制装置和形状控制方法,当第二辊以可移动的滚动速度滚动以补充第一辊的翘曲不足时,将第二辊移动到期望位置。 构成:形状控制装置包括第一辊(11),第二辊(13),第三辊(14)和辊位置补偿部件。 第一辊变化翘曲并改变轧制材料之间的辊的压力。 第二辊改变形成的锥形的位置以改变轧制材料之间的辊的压力。 第三辊根据第二辊和第一辊的压力来控制轧制材料的形状。 辊位置补偿部分校正第二辊的锥形位置。
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公开(公告)号:KR100819834B1
公开(公告)日:2008-04-07
申请号:KR1020037007841
申请日:2002-01-18
申请人: 에스엠에스 그룹 게엠베하
IPC分类号: B21B13/14
CPC分类号: B21B13/142 , B21B13/04 , B21B27/00 , B21B35/00 , B21B35/10 , B21B37/42 , B21B2013/025 , B21B2031/206 , B21B2267/065
摘要: 작업 롤(1, 2)의 직경이 상이한 것을 특징으로 하는 공지의 롤 스탠드(10)를 거의 만능으로 사용될 수 있으면서도 원하는 스트립 프로파일 경사면을 갖고 응력 및 기복이 대폭 제거된 스트립이 얻어지도록 개선시키기 위해, 본 발명에 따라 지지 롤(3, 4) 및 작업 롤(1, 2)이 롤 스탠드(10, 11)에 축 방향으로 이동될 수 있게 배치되고, 작업 롤(1, 2) 중의 하나 이상이 압연 스트립(6)의 유출 방향(7)으로 조정될 수 있게 구성되며, 지지 롤(3, 4) 및 작업 롤(1, 2)이 롤 배럴의 거의 전 길이에 걸쳐 연장되는 곡면 윤곽(2차 이상의 다항식에 의해 결정되는 CVC 컷)을 구비하되, 그 곡면 윤곽이 서로 상대적으로 180°만큼 엇갈려 배치되고, 작업 롤의 양자의 배럴 윤곽을 롤 갭의 대칭 윤곽으로 상보시키게끔 각각 형성되도록 하는 조치가 취해진다.
롤 스탠드, 작업 롤, 지지 롤, 압연 스트립, 스트립 프로파일 경사면, 곡면 윤곽, CVC 컷-
公开(公告)号:KR1020020045697A
公开(公告)日:2002-06-20
申请号:KR1020000074982
申请日:2000-12-09
申请人: 주식회사 포스코
IPC分类号: B21B37/28
CPC分类号: B21B37/42 , B21B37/16 , B21B2261/04 , B21B2263/04 , B21B2269/02
摘要: PURPOSE: A method for manufacturing a strip having uniform widthwise thickness is provided to increase shape control accuracy of the strip and manufacture the strip having the uniform widthwise thickness by varying crown control accuracy of the strip according to thickness of a bar during manufacturing of the strip. CONSTITUTION: The method for manufacturing the strip having uniform widthwise thickness comprises the steps of determining a target bar thickness at a rough rolling setting and calculator(11) according to information on widths and thicknesses of a slab(1) and a strip(1b); measuring thickness of the rough rolled bar(1a) after rough rolling the slab(1) using a measuring instrument(12); calculating finishing rolling load at a finishing rolling setting and calculator(13) using the measured bar thickness and rolling information; calculating a target thickness correction value from a correction bar thickness calculation part(20) if the target crown is not within the controllable range by judging whether a preset target crown is within the strip crown controllable range or not after calculating the controllable strip crown range from the calculated finishing rolling load; and manufacturing the strip by performing finishing rolling by determining a pair cross(θ) and a work roll bender(B) for making the target crown by arbitrarily selecting the correction value or an initial target bar thickness from a target bar thickness determination part(22) after applying the correction value to the following bar in case of the same set by judging whether a current bar is the same set as a following bar or not at a set change confirmation part(21).
摘要翻译: 目的:提供一种用于制造具有均匀横向厚度的条带的方法,以增加带材的形状控制精度,并通过根据条的制造过程中根据条的厚度改变带材的冠部控制精度来制造具有均匀宽度厚度的条带 。 构成:具有均匀宽度方向厚度的带材的制造方法包括以下步骤:根据关于板坯(1)和带材(1b)的宽度和厚度的信息来确定粗轧设定时的目标棒厚度和计算器(11) ; 在使用测量仪器(12)对板坯(1)进行粗轧后测量粗轧板(1a)的厚度; 使用测量的棒厚度和滚动信息计算精轧结束轧制负荷和计算器(13); 如果目标表冠不在可控范围内,则从校正条厚度计算部分(20)计算目标厚度校正值,通过在计算可控条带冠范围 计算精轧轧制载荷; 以及通过从目标棒厚度确定部件任意选择校正值或初始目标棒厚度来确定用于制造目标顶部的成对交叉(&)和工作辊弯曲机(B),进行精轧,制造带材; 在通过在设定变更确认部(21)判断当前条是否与下一条相同的集合的情况下,在相同的集合的情况下将校正值应用于后一条之后,
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