EP1112129B1 - Procede de production des produits ayant certaines proprietes lors du laminage d'acier de qualite austenitique, mixte austenitique-ferritique et ferritique - Google Patents

Procede de production des produits ayant certaines proprietes lors du laminage d'acier de qualite austenitique, mixte austenitique-ferritique et ferritique Download PDF

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Publication number
EP1112129B1
EP1112129B1 EP99969358A EP99969358A EP1112129B1 EP 1112129 B1 EP1112129 B1 EP 1112129B1 EP 99969358 A EP99969358 A EP 99969358A EP 99969358 A EP99969358 A EP 99969358A EP 1112129 B1 EP1112129 B1 EP 1112129B1
Authority
EP
European Patent Office
Prior art keywords
roll
rolling
rollers
rolls
roller
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
EP99969358A
Other languages
German (de)
English (en)
Other versions
EP1112129A1 (fr
Inventor
Wilfried Runde
Ulrich Skoda-Dopp
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 EP1112129A1 publication Critical patent/EP1112129A1/fr
Application granted granted Critical
Publication of EP1112129B1 publication Critical patent/EP1112129B1/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
    • B21B37/58—Roll-force control; Roll-gap control
    • 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
    • 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
    • B21B38/12—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 camber
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/02—Austenitic rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/04—Ferritic rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/16—Two-phase or mixed-phase rolling

Definitions

  • the invention relates to a method for generating defined product properties when rolling steel grades in austenitic, mixed austenitic-ferritic and ferritic range using a measuring method to determine the Roll gap of a pair of work rolls by detecting the absolute position of the Support or work rolls on the side facing away from the roll gap optical position measurement.
  • the gauge method has been used for thickness control for many years.
  • the strength of the rolling stock (c mat ) in the working area of the rolling stand has a linear characteristic, i.e. a larger or smaller rolling force, neglecting the temperature compensation at the working point, a measure of one Larger or smaller stitch reduction in the roll gap.
  • OGC process which is a more precise one Thickness control allowed.
  • OGC process the deflection of Position sensors measured that correlate directly with the nip opening, so that a value corresponding to the rolling stock thickness is obtained.
  • a four or Sexto scaffolding can be the springing up or change in position of the support roller, which is measured directly.
  • a corresponding measuring method is in the DE 42 03 469 C2 described.
  • a further control loop is required to control the rolling temperatures.
  • the Controlling a certain rolling temperature is an important prerequisite for the Preservation of a certain structure and thus for achieving the desired one mechanical properties of the rolling stock. For example, in a continuous Rolling mill for a given pass acceptance distribution by regulating the Rolling speed and the intermediate stand cooling to the final rolling temperature set the desired value. In a reversing line, certain Rolling temperatures etc. achieved by cooling phases between the rolling passes.
  • the gauge method is based on a linear one Rolling force characteristics. But it is known that with different steels below the austenite area a characteristic of the yield stress of the rolling stock is present, which has a non-linear profile in this temperature range (FIG. 4). In This means that the drop in rolling force does not always mean less Stitch reduction in the roll gap, i.e. the relationship between rolling force and There is no longer a clear change in thickness. Also with the so-called "Flying Gauge Change "(Fig.
  • the gauge method cannot be used because some of the Influencing factors determining the rolling process (e.g. roll speed, rolling force, Outlet thickness) change what is not exactly reproduced by the gauge method can be .
  • This also works when rolling in a thin strip casting and rolling line Gauge method only limited. Because due to the casting process can Thickness and temperature fluctuations occur in the rolling stock that affect the work area a conventional gauge control.
  • This rolling mill (see Fig. 1) consists of at least three in a row arranged horizontal frames 2 to 3 (quartos and / or sextos), each with hydraulic positions 4 are equipped.
  • the work rolls are on and provided on the outlet side with a device 5 with which the width and in the Intensity controllable by means of a cooling and / or heating medium without contact or the roller shape can be influenced by contact.
  • Inlet and under are Above the scraper 6 feed systems 7 arranged by the width controllably a lubricant is sprayed onto the roll or into the roll gap.
  • a lubricant is sprayed onto the roll or into the roll gap.
  • the last and possibly penultimate scaffold is with the So-called OGCC system 8 according to the invention.
  • OGCC system 8 There is one in front of each scaffold Temperature measuring point 10 arranged with which the rolling stock temperature across the width and / or is measured at points.
  • Behind the last scaffolding is a measuring station 11 installed, the temperature and thickness profile as well as width, flatness and Surface quality recorded.
  • the rolling stock 1 enters the first stand and leaves the road from the last stand 3.
  • the rolling temperature in the passes can be in austenitic, mixed austenitic-ferritic and / or ferritic range.
  • OCC Optical Gauge & Crown Control
  • On the top of the upper support roller 22 and / or on The bottom of the lower backup roller has several sensors along the length of the bale 24 arranged, which measure the actual profile shape in segments.
  • This Sensors are mounted on a carrier.
  • This carrier on Sliding shoes on the roller, the distance to the roller is constant. Consequently sensors that have a high resolution and a small measuring range, be used; e.g. Sensors that work according to the induction principle Measure the roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Claims (8)

  1. Procédé pour obtenir des caractéristiques de produits définies lors du laminage d'acier de qualité austénitique, mixte austénitique-ferritique et ferritique, par la mise en oeuvre d'un procédé de mesure pour déterminer l'espace entre un couple de cylindres par détection de la position absolue des cylindres de travail ou des cylindres d'appui du côté opposé à l'espace entre cylindres au moyen d'une mesure optique de position,
    caractérisé en ce que le bord supérieur du cylindre supérieur, respectivement le bord inférieur du cylindre inférieur, est détecté par segments sur la longueur du corps de cylindre par rapport à la position absolue mesurée des cylindres au moyen de capteurs disposés les uns à côté des autres le long du cylindre, et en ce que les résultats de mesure interviennent dans une régulation appropriée influant sur la géométrie de l'espace entre cylindres et du produit laminé par l'intermédiaire d'un modèle qui prend en considération, outre les influences des systèmes de flexion et de réglage des cylindres, la flexion des cylindres, les aplatissements entre les cylindres, l'aplatissement entre cylindre de travail et produit laminé, ainsi que l'usure et le bombement thermique des cylindres.
  2. Procédé selon la revendication 1,
    caractérisé en ce que, pour régler convenablement la géométrie de l'espace entre cylindres et du produit laminé, on peut influer sur la forme des cylindres de travail côté entrée et côté sortie, de manière contrôlable sur la largeur et en intensité, au moyen d'un fluide de refroidissement et/ou de chauffage, sans contact ou avec contact.
  3. Procédé selon les revendications 1 et 2,
    caractérisé en ce que, du côté entrée, un lubrifiant est injecté sur le cylindre, respectivement dans l'espace entre cylindres, au-dessous ou au-dessus des racleurs agissant sur les cylindres de travail, de manière contrôlable sur la largeur.
  4. Procédé selon la revendication 2,
    caractérisé en ce que l'influence, sans contact ou avec contact, de la température du produit laminé a lieu en amont et en aval du train de laminage et entre les cages.
  5. Procédé selon les revendications 1 à 4,
    caractérisé en ce qu'il est utilisé dans le cas d'au moins une cage.
  6. Procédé selon les revendications 1 à 5,
    caractérisé en ce que la température du produit laminé est mesurée sur la largeur et/ou ponctuellement en amont de chaque cage.
  7. Procédé selon les revendications 1 à 6,
    caractérisé en ce que le profil de température et d'épaisseur, ainsi que la largeur, la planéité et la qualité de surface sont détectés en aval de la dernière cage.
  8. Procédé selon les revendications 1 à 7,
    caractérisé en ce qu'on utilise une bande de coulée comme produit de départ pour le processus de laminage.
EP99969358A 1998-09-17 1999-09-14 Procede de production des produits ayant certaines proprietes lors du laminage d'acier de qualite austenitique, mixte austenitique-ferritique et ferritique Revoked EP1112129B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19844305A DE19844305A1 (de) 1998-09-17 1998-09-17 Kombiniertes Regelungssystem zur Erzeugung bestimmter Produkteigenschaften beim Walzen von Stahlqualitäten im austenitischen, gemischt austenitisch-ferritischen und ferritischen Bereich
DE19844305 1998-09-17
PCT/DE1999/002970 WO2000016919A1 (fr) 1998-09-17 1999-09-14 Systeme de regulation combine permettant de produire des produits ayant certaines proprietes lors du laminage d'acier de qualite austenitique, mixte austenitique-ferritique et ferritique

Publications (2)

Publication Number Publication Date
EP1112129A1 EP1112129A1 (fr) 2001-07-04
EP1112129B1 true EP1112129B1 (fr) 2002-08-28

Family

ID=7882426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99969358A Revoked EP1112129B1 (fr) 1998-09-17 1999-09-14 Procede de production des produits ayant certaines proprietes lors du laminage d'acier de qualite austenitique, mixte austenitique-ferritique et ferritique

Country Status (10)

Country Link
EP (1) EP1112129B1 (fr)
KR (1) KR20010075183A (fr)
CN (1) CN1323248A (fr)
AT (1) ATE222819T1 (fr)
AU (1) AU1150500A (fr)
BR (1) BR9913854A (fr)
CA (1) CA2344194A1 (fr)
DE (2) DE19844305A1 (fr)
ES (1) ES2178502T3 (fr)
WO (1) WO2000016919A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10059321A1 (de) * 2000-11-29 2002-06-13 Sms Demag Ag Konturmeßeinrichtung zur Messung der Kontur einer in einem Walzengerüst angeordneten Walze
DE10063773A1 (de) * 2000-12-21 2002-06-27 Sms Demag Ag Konturmeßeinrichtung und Verfahren zur Messung einer Kontur
DE50301499D1 (de) * 2002-03-15 2005-12-01 Siemens Ag Rechnergestütztes ermittlungsverfahren für sollwerte für profil- und planheitsstellglieder
DE102012218353A1 (de) 2012-10-09 2014-04-10 Siemens Ag Breitenbeeinflussung eines bandförmigen Walzguts
CN103128099B (zh) * 2013-02-25 2016-01-06 南通职业大学 一种热轧系统和方法
KR101399886B1 (ko) * 2013-03-28 2014-05-27 현대제철 주식회사 캠버 제어 장치 및 그 방법
JP2016157313A (ja) * 2015-02-25 2016-09-01 東芝三菱電機産業システム株式会社 鉄鋼プラントの傾向監視装置
EP3426418B1 (fr) * 2016-03-08 2020-11-18 Novelis Inc. Procédé et appareil pour commander un profil de bande métallique pendant un laminage avec une mesure directe de paramètres de processus
CN110947788A (zh) * 2019-11-29 2020-04-03 浙江摩多巴克斯科技股份有限公司 一种实现全工位高精度自动在线检测的焊管生产线
CN113102496A (zh) * 2020-12-31 2021-07-13 鞍钢冷轧钢板（莆田）有限公司 一种控制冷轧带钢中部起筋方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1307823A (en) * 1969-09-03 1973-02-21 British Iron Steel Research Rolling of strip or plate material
US4274273A (en) * 1979-10-03 1981-06-23 General Electric Company Temperature control in hot strip mill
JPS5884606A (ja) * 1981-11-12 1983-05-20 Kawasaki Steel Corp 鋼板の圧延荷重予測方法
DE3419261C3 (de) * 1984-05-23 1994-12-15 Achenbach Buschhuetten Gmbh Walzenkühl- und/oder Schmiervorrichtung für Kaltbandwalzwerke, insbesondere Feinbandwalzwerke
JPS61219822A (ja) * 1985-03-27 1986-09-30 Nippon Kokan Kk <Nkk> 圧延ロ−ルプロフイ−ル測定における圧延ロ−ル変位補正装置
DE19503363A1 (de) * 1994-02-15 1995-09-07 Siemens Ag Einrichtung und Verfahren zum Regeln der Planheit und/oder Spannungsverteilung von gewalzten Metallbändern
FR2726210B1 (fr) * 1994-10-28 1997-01-10 Usinor Sacilor Mise en forme de produits metalliques minces entre deux cylindres
DE19547438C2 (de) * 1995-12-11 2001-08-16 Sms Demag Ag Sensorträger
DE19618712B4 (de) * 1996-05-09 2005-07-07 Siemens Ag Regelverfahren für ein Walzgerüst zum Walzen eines Bandes
DE19618995C2 (de) * 1996-05-10 2002-01-10 Siemens Ag Verfahren und Einrichtung zur Beeinflussung relevanter Güteparameter, insbesondere des Profils oder der Planheit eines Walzbandes

Also Published As

Publication number Publication date
CA2344194A1 (fr) 2000-03-30
ES2178502T3 (es) 2002-12-16
DE19844305A1 (de) 2000-03-30
DE59902485D1 (de) 2002-10-02
WO2000016919A1 (fr) 2000-03-30
AU1150500A (en) 2000-04-10
EP1112129A1 (fr) 2001-07-04
ATE222819T1 (de) 2002-09-15
KR20010075183A (ko) 2001-08-09
CN1323248A (zh) 2001-11-21
BR9913854A (pt) 2001-07-17

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