EP1161313B1 - Reglage de planeite permettant d'obtenir une bande a froid plane - Google Patents

Reglage de planeite permettant d'obtenir une bande a froid plane Download PDF

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Publication number
EP1161313B1
EP1161313B1 EP00929223A EP00929223A EP1161313B1 EP 1161313 B1 EP1161313 B1 EP 1161313B1 EP 00929223 A EP00929223 A EP 00929223A EP 00929223 A EP00929223 A EP 00929223A EP 1161313 B1 EP1161313 B1 EP 1161313B1
Authority
EP
European Patent Office
Prior art keywords
strip
distribution
temperature
stress distribution
stresses
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.)
Revoked
Application number
EP00929223A
Other languages
German (de)
English (en)
Other versions
EP1161313A1 (fr
Inventor
Folker Haase
Wolfgang Sauer
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
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Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1161313A1 publication Critical patent/EP1161313A1/fr
Application granted granted Critical
Publication of EP1161313B1 publication Critical patent/EP1161313B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • B21B2261/21—Temperature profile

Definitions

  • the invention relates to a method for rolling a rolled strip in a Belt mill with at least two roll stands or a single stand with each upper and lower, if necessary, adjustable work rolls, which may be immediate or Support on intermediate rollers on support rollers and in which to change the state of the rolled strip is rolled at least one pass, one for the rolled strip Target stress distribution or any target unevenness form specified and with the actually achieved voltage distribution is compared and available standing mechanically or physically effective actuators used in the way be that the difference between predetermined and factually achieved Stress distribution is minimized as much as possible.
  • the flatness measurement of cold rolled strip is usually done using Flatness measuring rollers, which show the current tension distribution over the bandwidth measure up.
  • the measurement is usually carried out on the outlet side of the roll stand, where average strip temperatures between 80 and 160 ° C occur. This applies analogously also for other metals such as aluminum or copper.
  • the contour of the roll gap is to be controlled in such a way that the strip flatness or a specific non-flatness shape is maintained or achieved.
  • the measured variable is the stress distribution in the warm band, which is associated with the temperature-induced stress described (in the example above, more than 25 N / mm 2 ). This means that the known flatness control with a target flatness or target function for flat strip will also regulate this temperature-induced tension in the warm strip. After the temperature difference has cooled and subsided, a voltage component corresponding to the temperature-induced voltage, but with the opposite sign, is additionally superimposed in the cooled band of the target unevenness form.
  • target stress distributions or target non-flatness forms could be for one given product together with a given rolling or special
  • cooling strategy can also be specified in such a way that an adequate one Flatness of the cooled product is preserved.
  • search for the required objective functions or unplanned forms an elaborate empirical Process that involves unwinding the federal government with sampling for each product makes necessary.
  • the aim of the present invention is to find a method for flatness control, with that no longer directly between the measurable flatness in the warm state behind the nip and for various products and strategies Different cold unevenness forms of the cooled coils can be distinguished must and with the same in the warm state the same flatness or non-flatness forms can be specified.
  • the advantage of this proposal according to the invention is that the Formulation of the target function for flatness can be done in such a way that on the best possible flatness of the cooled bundle is achieved directly.
  • the uses Invention the temperature measurement not as a directly linked to the flatness Measured variable (this task is performed by the tension measuring roller), but according to the technological knowledge of the causes of unplanarity as one Supplementary correction variable for the tensile stress in the warm, which can now be measured directly Strip, so that the control system specifically cooled cold strip in each individual case can achieve defined flatness.
  • Target flatness for the hot strip significantly simplified. Scatters of Cold unevenness due to temperature fluctuations are avoided. Differences in target unevenness for different products are reduced.
  • the target unevenness needs not to be adjusted. Bundles previously rolled in cold operation and consequently can cool off on the order of magnitude after each stitch can be rolled further after a shorter time, unless the permissible Total temperature is exceeded. Then also here applies that through the new Proceed the goal of unpredictability regardless of the waiting time between stitches becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electrotherapy Devices (AREA)
  • Outside Dividers And Delivering Mechanisms For Harvesters (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (7)

  1. Procédé pour laminer un feuillard dans un train à feuillards, comportant au moins deux cages de laminoir ou une cage individuelle avec, à chaque fois, des cylindres de travail supérieur et inférieur, le cas échéant réglables, qui s'appuient le cas échéant directement ou par des cylindres intermédiaires sur des cylindres d'appui et dans lesquels, pour modifier l'état du feuillard, au moins une passe est effectuée, une répartition de contrainte visée ou une forme de non planéité visée quelconque étant prédéfinie pour le feuillard et étant comparée à la répartition de contrainte réellement atteinte, et des organes de réglage disponibles efficaces de façon mécanique ou physique étant utilisés de façon que la différence entre la répartition de contrainte prédéfinie et la répartition de contrainte réellement atteinte soit le plus largement possible minimisée,
    caractérisé en ce que, à côté de la répartition de contrainte proprement dite dans le feuillard chaud, également la répartition de température du feuillard est détectée sur la largeur du feuillard et, de là, la répartition de contrainte est déterminée par calcul, laquelle a été réglée après le refroidissement du feuillard lorsque le feuillard, dans l'état chaud, était sans contrainte avec la répartition de température existant derrière la fente des cylindres, et en ce que cette répartition de contrainte induite par la température est utilisée pour corriger la contrainte réellement atteinte avant que celle-ci soit comparée avec la forme de non planéité visée.
  2. Procédé selon la revendication 1,
    caractérisé en ce que la répartition de contrainte induite par la température est soustraite de la répartition de contrainte réelle, la répartition de contrainte résultante est comparée avec la forme de non planéité visée, de là, la différence est calculée, et des organes de réglage disponibles efficaces mécaniquement ou physiquement sont utilisés de façon que la différence soit le plus largement possible minimisée.
  3. Procédé selon la revendication 1,
    caractérisé en ce que la répartition de contrainte induite par la température est ajoutée à la forme de non planéité visée, la répartition de planéité réellement détectée est comparée à cette répartition de somme, la différence est calculée à partir de là, et des organes de réglage disponibles efficaces mécaniquement ou physiquement sont utilisés de manière que la différence soit le plus largement possible minimisée.
  4. Procédé selon la revendication 1 à 3,
    caractérisé en ce que, dans le sens d'un compromis technologique de plusieurs points de vue du réglage de planéité, la répartition de contrainte induite par la température, avant le traitement ultérieur, est multipliée par un facteur d'amplification.
  5. Procédé selon la revendication 4,
    caractérisé en ce que, dans le sens d'une pondération de profil technologique, ce facteur d'amplification présente une valeur différente pour chaque bande de feuillard.
  6. Procédé selon une des revendications 1 - 5,
    caractérisé en ce que la répartition de température du feuillard est détectée derrière la fente des cylindres par une technique de mesure, avantageusement sans contact.
  7. Procédé selon une des revendications 1 - 5,
    caractérisé en ce que la répartition de température du feuillard derrière la fente des cylindres est dérivée d'un modèle de calcul.
EP00929223A 1999-03-15 2000-03-14 Reglage de planeite permettant d'obtenir une bande a froid plane Revoked EP1161313B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19912796A DE19912796A1 (de) 1999-03-15 1999-03-15 Planheitsregelung zur Erzielung von planem Kaltband
DE19912796 1999-03-15
PCT/DE2000/000831 WO2000054900A1 (fr) 1999-03-15 2000-03-14 Reglage de planeite permettant d'obtenir une bande a froid plane

Publications (2)

Publication Number Publication Date
EP1161313A1 EP1161313A1 (fr) 2001-12-12
EP1161313B1 true EP1161313B1 (fr) 2002-11-27

Family

ID=7901905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00929223A Revoked EP1161313B1 (fr) 1999-03-15 2000-03-14 Reglage de planeite permettant d'obtenir une bande a froid plane

Country Status (11)

Country Link
EP (1) EP1161313B1 (fr)
JP (1) JP2003504206A (fr)
KR (1) KR20010112335A (fr)
CN (1) CN1343146A (fr)
AT (1) ATE228401T1 (fr)
AU (1) AU4741600A (fr)
BR (1) BR0009025A (fr)
DE (2) DE19912796A1 (fr)
ES (1) ES2182801T3 (fr)
TR (1) TR200102682T2 (fr)
WO (1) WO2000054900A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105689405A (zh) * 2016-01-28 2016-06-22 燕山大学 一种冷轧带材在线目标板形的智能设定方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100843964B1 (ko) * 2006-12-22 2008-07-04 주식회사 포스코 압연강판 선단부 휨 방지방법
CN101362154B (zh) * 2008-09-28 2010-06-23 东北大学 一种板带轧制中测量料卷卷径、带宽的装置及其方法
CN101507975B (zh) * 2009-03-20 2012-01-04 燕山大学 双机架ucm平整机组带钢表面色差缺陷综合治理方法
CN101623707B (zh) * 2009-08-05 2011-05-25 燕山大学 连轧机板形标准曲线设计方法
JP4918155B2 (ja) 2010-09-28 2012-04-18 三菱日立製鉄機械株式会社 熱延鋼帯の製造装置及び製造方法
CN108416171A (zh) * 2018-04-03 2018-08-17 中民筑友有限公司 工艺轮廓设计图生成方法、系统、装置及可读存储介质

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927769A1 (de) * 1979-07-10 1981-02-05 Schloemann Siemag Ag Verfahren und anlage zur planwalzung von bandmaterial aus stahl und nichteisenmetall
JPS57156821A (en) * 1981-03-24 1982-09-28 Toshiba Corp Controlling method for shape
JPS6021113A (ja) * 1983-07-15 1985-02-02 Nippon Steel Corp 熱間ストリツプ圧延における形状制御方法
DE3735022A1 (de) * 1987-06-02 1988-12-22 Escher Wyss Ag Verfahren und vorrichtung zum walzen von metallbaendern
JPH02207909A (ja) * 1989-02-06 1990-08-17 Sumitomo Metal Ind Ltd 熱間圧延材のオンラインでの形状測定方法
JPH02255209A (ja) * 1989-03-30 1990-10-16 Nippon Steel Corp 板の温間または冷間圧延における形状制御方法
JPH03285707A (ja) * 1990-03-30 1991-12-16 Kobe Steel Ltd 熱間圧延時の板クラウンの制御方法
JP2758490B2 (ja) * 1990-08-21 1998-05-28 新日本製鐵株式会社 板圧延における形状制御方法
JPH04300008A (ja) * 1991-03-28 1992-10-23 Nippon Steel Corp 板内幅方向温度分布制御法
JPH0615321A (ja) * 1992-06-30 1994-01-25 Kawasaki Steel Corp 厚板圧延における形状制御方法
DE19654068A1 (de) * 1996-12-23 1998-06-25 Schloemann Siemag Ag Verfahren und Vorrichtung zum Walzen eines Walzbandes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105689405A (zh) * 2016-01-28 2016-06-22 燕山大学 一种冷轧带材在线目标板形的智能设定方法

Also Published As

Publication number Publication date
EP1161313A1 (fr) 2001-12-12
TR200102682T2 (tr) 2002-04-22
ATE228401T1 (de) 2002-12-15
KR20010112335A (ko) 2001-12-20
JP2003504206A (ja) 2003-02-04
AU4741600A (en) 2000-10-04
DE50000828D1 (de) 2003-01-09
BR0009025A (pt) 2001-12-26
DE19912796A1 (de) 2000-10-12
CN1343146A (zh) 2002-04-03
WO2000054900A1 (fr) 2000-09-21
ES2182801T3 (es) 2003-03-16

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