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EP0763391B1 - Procédé de compensation de forces résultant de mouvements horizontaux des rouleaux dans une cage de laminoir - Google Patents

Procédé de compensation de forces résultant de mouvements horizontaux des rouleaux dans une cage de laminoir Download PDF

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Publication number
EP0763391B1
EP0763391B1 EP96113055A EP96113055A EP0763391B1 EP 0763391 B1 EP0763391 B1 EP 0763391B1 EP 96113055 A EP96113055 A EP 96113055A EP 96113055 A EP96113055 A EP 96113055A EP 0763391 B1 EP0763391 B1 EP 0763391B1
Authority
EP
European Patent Office
Prior art keywords
forces
rolling
rolls
roll
axial forces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96113055A
Other languages
German (de)
English (en)
Other versions
EP0763391A1 (fr
Inventor
Wolfgang Prof. Dr. Rohde
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP0763391A1 publication Critical patent/EP0763391A1/fr
Application granted granted Critical
Publication of EP0763391B1 publication Critical patent/EP0763391B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B21B38/105—Calibrating or presetting roll-gap
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/12—Rolling load or rolling pressure; roll force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/04—Lateral deviation, meandering, camber of product

Definitions

  • the invention relates to a method for compensating forces or force components, resulting from horizontal movements of the rolls in roll stands for the hot and cold rolling of flat products, equipped with work rolls and with one or more backup rolls, with hydraulic adjustments and with Force measuring devices on the opposite side of the roll gap and with hydraulic devices for the horizontal displacement of the work rolls.
  • Figure 1 of the present application documents describes the basic problem of volatile and stray axial forces, for example on the upper one Back-up roller 1 of a four-high stand.
  • the horizontally acting forces T are line-volatile Vectors, that is, they can be shifted along their line of action become. It is therefore irrelevant on which side of the stand the roller is locked.
  • Such pairs of forces always arise from the axial force in the contact area to the neighboring roller.
  • the individual forces overlap and express themselves in different axial forces on all the rollers involved correspondingly difficult to overlook reaction forces in the roll stands.
  • reaction forces show in the roll stands extremely adverse effects.
  • the screwing direction of all the rollers involved also changes.
  • the rollers are running to the opposite side, which results in a reversal of the axial forces Has.
  • the reaction forces in the roll stands change accordingly with the result that the force measuring devices arranged in the stands Report changes that are not related to the actual rolling process stand.
  • the result is incorrect reactions of all control loops, which are carried out by the forces measured on the roll stands, such as the flatness control, the automatic calibration for parallel setting of the roll gap, the roll Alignment control to compensate for the effects of an off-center position of the Rolled product and other control loops, depending on the type of roll stand and the Rolled product.
  • the invention opens up the possibility of all in one roll stand occurring vagabond forces from horizontal movements of the Rolls to determine continuously and the resulting To compensate for force components in the measured rolling forces. Further Embodiments of the invention are the subject of claims 2 to 7.
  • Modern mill stands for cold and hot rolled flat products today almost exclusively with hydraulic adjustments 2 as Thickness control actuator equipped.
  • the pitch cylinders the hydraulic adjustment are above the upper one Back-up roll chocks 3 or below the lower back-up roll chocks 4.
  • Figure 2 shows an analysis of the forces in a roll stand. Recorded only the forces F from the rolling process and the axial forces T of the rollers. On the representation of balancing forces, Bending and weight forces have been omitted because of the compensation of these forces is known.
  • Figure 3 shows the composition of the equation set.
  • the derivation of a center deviation is of particular interest X for the position of the resulting rolling force in the roll gap (see Fig. 2).
  • This size can also be determined from the six measured values in the Derive rolling operation continuously.
  • the equation for the center deviation X is indicated in Fig. 3.
  • the size X can be used are used for automatic calibration, i.e. for the automatic Parallel positioning of the two work rolls by changing the rolls the stand is pre-tensioned with rolling rollers without rolling stock and the eccentricity X calculated from the six measured values becomes.
  • the Value X regulated to zero with the result of a flawless Parallel position of the upper and lower roller.
  • the center deviation X can be used to report such Events and used for a corresponding correction become.
  • the automatic calibration and monitoring of the rolling process can also take place in that instead of introducing a center deviation, the measured forces F 1 to F 4 are corrected (compensated) with the help of the calculable reaction forces from the axial forces.
  • the equations required for this for the sum of the reaction forces from all the rolls involved are indicated by R 1 to R 4 in FIG. 4.
  • the measured values F 1 to F 4 can be used in a manner known per se by forming the difference F 1 minus F 2 or F 3 minus F 4 for the roll calibration and for monitoring the rolling process.
  • Figure 4 shows the equation set for the reaction forces from the Axial forces and for the reaction forces from the eccentricity the rolling force.
  • FIG. 5 contains a calculation example with assumed roll stand data and rolling data and the data from them using the above Equations calculated roller axial forces and reaction forces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Press Drives And Press Lines (AREA)

Claims (7)

  1. Procédé pour compenser des forces ou des parts de forces (T) résultant de mouvements horizontaux des cylindres dans des cages de laminoir pour le laminage à chaud et à froid de produits plats, équipées de cylindres de travail (6) et d'un ou de plusieurs cylindres d'appui (1), de dispositifs de positionnement hydrauliques (2) et de dispositifs de mesure de forces (5) sur le côté opposé de l'emprise de laminage et de dispositifs hydrauliques (7) pour le déplacement horizontal des cylindres de travail (6), caractérisé en ce que l'on a recours aux pressions dans les deux vérins de positionnement (2) pour déterminer les forces de laminage (F) sur un côté de l'emprise, et aux forces affichées par les dispositifs de mesure de forces (5) pour déterminer les forces de laminage sur le côté opposé de l'emprise, et en ce qu'en prenant en compte les forces axiales (T) des cylindres de travail (6), déterminées via les pressions dans les vérins de déplacement (7) des cylindres de travail (6), on détermine par calcul toutes les forces axiales dans la cage pendant le fonctionnement des cylindres, et en ce qu'à partir des forces axiales (T) mesurées et calculées des cylindres, on en déduit des valeurs de correction pour les affichages de force de laminage (F) dans les deux montants, afin de compenser les forces de réaction (R) des forces axiales (T), dans lequel on détermine par calcul les allongements associés aux forces de réaction (R) résultant des forces axiales (T) dans les deux montants, et on les compense par un positionnement correspondant des deux dispositifs de positionnement hydrauliques (2).
  2. Procédé selon la revendication 1, caractérisé en ce que l'on détermine par calcul l'excentricité actuelle (x) de la force de laminage (Fw) à partir des quatre forces de laminage mesurées (F1 à F4) et à partir des deux forces axiales mesurées (T2, T3).
  3. Procédé selon les revendications 1 et 2, caractérisé en ce que lors du calibrage de la cage de laminoir pour mettre en parallèle les cylindres (1, 6), on régule à zéro l'excentricité calculée (x) de la force de laminage (Fw).
  4. Procédé selon la revendication 3, caractérisé en ce que l'on prend en compte les six valeurs mesurées pour les forces de laminage (F1 à F4) et pour les forces axiales (T2, T3) uniquement pendant des mouvements de déplacement dirigés dans le même sens et effectués sur les deux côtés de la cage lors de l'exécution du calibrage automatique.
  5. Procédé selon la revendication 1, caractérisé en ce que les forces axiales mesurées et calculées (T1 à T4) et la force tangentielle (Tw) dans l'emprise sont affichées en continu pour surveiller l'état de maintien.
  6. Procédé selon la revendication 1, caractérisé en ce qu'après compensation des affichages de forces de laminage (F1 à F4) par les forces de réaction (R) calculées à partir des forces axiales (T1 à T4), on régule à zéro la différence restante des affichages de forces de laminage dans la partie supérieure ou inférieure de la cage, pour mettre en parallèle les cylindres.
  7. Procédé selon la revendication 1, caractérisé en ce qu'après compensation des affichages de forces de laminage (F1 à F4) par les forces de réaction (R) calculées à partir des forces axiales (T1 à T4), on a recours à la différence restante des affichages de forces de laminage dans la partie supérieure ou inférieure de la cage, pour surveiller en continu le processus de laminage.
EP96113055A 1995-08-18 1996-08-14 Procédé de compensation de forces résultant de mouvements horizontaux des rouleaux dans une cage de laminoir Expired - Lifetime EP0763391B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19530424 1995-08-18
DE19530424A DE19530424A1 (de) 1995-08-18 1995-08-18 Verfahren zur Kompensation von aus Horizontalbewegungen der Walzen resultierenden Kräften an Walzgerüsten

Publications (2)

Publication Number Publication Date
EP0763391A1 EP0763391A1 (fr) 1997-03-19
EP0763391B1 true EP0763391B1 (fr) 2000-07-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113055A Expired - Lifetime EP0763391B1 (fr) 1995-08-18 1996-08-14 Procédé de compensation de forces résultant de mouvements horizontaux des rouleaux dans une cage de laminoir

Country Status (12)

Country Link
US (1) US5714692A (fr)
EP (1) EP0763391B1 (fr)
JP (1) JP4057666B2 (fr)
KR (1) KR100424527B1 (fr)
CN (1) CN1069235C (fr)
AT (1) ATE194932T1 (fr)
CA (1) CA2182832C (fr)
DE (2) DE19530424A1 (fr)
ES (1) ES2149408T3 (fr)
MY (1) MY120506A (fr)
RU (1) RU2194585C2 (fr)
TW (1) TW315331B (fr)

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DE102009030792A1 (de) 2008-12-18 2010-06-24 Sms Siemag Ag Verfahren zum Kalibrieren zweier zusammenwirkender Arbeitswalzen in einem Walzgerüst

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CN103203372B (zh) * 2012-01-11 2015-05-20 宝山钢铁股份有限公司 消除热连轧机静态偏差值的控制方法
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CN205659983U (zh) * 2016-06-15 2016-10-26 日照宝华新材料有限公司 一种esp生产线用长公里数轧制辊
TWI622435B (zh) * 2016-11-24 2018-05-01 財團法人金屬工業研究發展中心 金屬板材輥軋曲彎成形回彈補償機構
CN109604489A (zh) * 2017-08-11 2019-04-12 丽水市信裕机械制造有限公司 一种螺旋折流板的防折断旋轧装置
CN108284136B (zh) * 2018-01-19 2019-09-03 山东钢铁集团日照有限公司 一种提高精轧机辊缝标定精度的方法
JP6832309B2 (ja) * 2018-03-27 2021-02-24 スチールプランテック株式会社 圧延機及び圧延機の制御方法
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CN112453343B (zh) * 2020-11-30 2022-02-01 中冶赛迪技术研究中心有限公司 一种连铸扇形段辊缝在线补偿的方法
CN112808381B (zh) * 2021-01-04 2022-08-16 中冶长天国际工程有限责任公司 一种破碎机辊缝调节装置、破碎机及破碎机辊缝控制方法
CN113916279B (zh) * 2021-08-30 2023-04-21 北京科技大学 一种楔横轧成形轴向轧制力与轧件转速测量装置
CN114101340B (zh) * 2021-12-01 2022-07-29 燕山大学 一种轧辊横移位置误差的补偿方法
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009030792A1 (de) 2008-12-18 2010-06-24 Sms Siemag Ag Verfahren zum Kalibrieren zweier zusammenwirkender Arbeitswalzen in einem Walzgerüst
WO2010069575A2 (fr) 2008-12-18 2010-06-24 Sms Siemag Ag Procédé d'étalonnage de deux cylindres de travail coopérant entre eux dans une cage de laminoir
WO2010069575A3 (fr) * 2008-12-18 2010-08-19 Sms Siemag Ag Procédé d'étalonnage de deux cylindres de travail coopérant entre eux dans une cage de laminoir
CN102256717A (zh) * 2008-12-18 2011-11-23 Sms西马格股份公司 用于校正轧机机架中两个共同作用的工作辊子的方法
RU2476280C1 (ru) * 2008-12-18 2013-02-27 Смс Зимаг Аг Способ калибровки двух взаимодействующих друг с другом рабочих валков в прокатной клети
US8939009B2 (en) 2008-12-18 2015-01-27 Sms Siemag Aktiengesellschaft Method for calibrating two interacting working rollers in a rolling stand

Also Published As

Publication number Publication date
CA2182832A1 (fr) 1997-02-19
ES2149408T3 (es) 2000-11-01
MY120506A (en) 2005-11-30
JP4057666B2 (ja) 2008-03-05
EP0763391A1 (fr) 1997-03-19
CN1069235C (zh) 2001-08-08
TW315331B (fr) 1997-09-11
DE59605639D1 (de) 2000-08-31
CN1149512A (zh) 1997-05-14
US5714692A (en) 1998-02-03
DE19530424A1 (de) 1997-02-20
KR970009913A (ko) 1997-03-27
CA2182832C (fr) 2007-07-31
JPH09103815A (ja) 1997-04-22
RU2194585C2 (ru) 2002-12-20
ATE194932T1 (de) 2000-08-15
KR100424527B1 (ko) 2004-05-24

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