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EP1699573A1 - Fonctionnements et types de cages combines dans des trains de laminoir en tandem a froid - Google Patents

Fonctionnements et types de cages combines dans des trains de laminoir en tandem a froid

Info

Publication number
EP1699573A1
EP1699573A1 EP04803394A EP04803394A EP1699573A1 EP 1699573 A1 EP1699573 A1 EP 1699573A1 EP 04803394 A EP04803394 A EP 04803394A EP 04803394 A EP04803394 A EP 04803394A EP 1699573 A1 EP1699573 A1 EP 1699573A1
Authority
EP
European Patent Office
Prior art keywords
roll
rolls
work
technology
cvc
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.)
Granted
Application number
EP04803394A
Other languages
German (de)
English (en)
Other versions
EP1699573B1 (fr
Inventor
Andreas Ritter
Rüdiger Holz
Horst Oemkes
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 EP1699573A1 publication Critical patent/EP1699573A1/fr
Application granted granted Critical
Publication of EP1699573B1 publication Critical patent/EP1699573B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • 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
    • B21B1/24—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 continuous or semi-continuous process
    • B21B1/28—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 continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/028—Sixto, six-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips

Definitions

  • the invention relates to a method for the combined operation of individual roll stands within a cold tandem mill, each comprising a pair of work rolls and backup rolls in 4-roll stands and additionally a pair of intermediate rolls in 6-roll stands, at least the work rolls and the intermediate rolls interacting with devices for axial displacement.
  • the classic system concept of a cold tandem mill consists of lining up several 4-roll stands.
  • the number of scaffolds required is largely determined by the total acceptance and the final thickness to be achieved.
  • the horizontal deflection of the work rolls and intermediate rolls also plays an important role in the flatness of the strip.
  • the set of rolls is supported, which leads to a significant reduction in the horizontal deflection.
  • Another criterion for the quality of the end product is the surface quality of the sliver that runs out. Textured (roughened) and chrome-plated rollers allow the surface of the belt to be preset. In order to avoid markings on the end product by shifting wear edges or shading on the belt surface due to the occurrence of relative speed differences across the width of the sliver, it makes sense to design the last stand of a cold tandem mill as a 6-roll stand. The work rolls are cylindrical or have a slight crown. They are not shifted in the rolling process.
  • the patent specification DE 36 24241 C2 (method for operating a rolling mill for producing a rolled strip) combines both methods with one another.
  • the aim is to even out the disadvantageous deflection of the work rolls under rolling force over the entire range of bandwidths and to increase the effectiveness of the roll bending systems by shortening the displacement paths without having to interrupt the continuous rolling operation.
  • This goal is achieved by shifting intermediate or work rolls with an applied CVC cut.
  • the bale edges of the CVC rollers are positioned in the area of the belt edge.
  • the roller set consists of rollers of the same bale length.
  • the object of the invention is to implement these technologies / modes of operation by means of a stand design with a geometrically identical set of rolls, which is not only limited to a 6-roll stand and not only to the intermediate rolls.
  • a system for carrying out the method is characterized by the features of claim 5.
  • the roll configuration from the CVC / CVC plus technology for a 6-roll or 4-roll stand is used as the basis for the stand concept.
  • the displaceable intermediate or work roll has a bale that is longer by the CVC displacement stroke and is symmetrically located in the center of the stand for the neutral displacement position.
  • the work / intermediate roll with a longer and symmetrical bale is used either with a cylindrical or spherical cut during belt edge-oriented displacement.
  • bale areas within the set of rolls are selectively hidden from the force flow.
  • the resulting negative deformations are reduced because the "principle of the ideal framework" is approximated.
  • the load distributions that occur in the respective contact joints increase due to the reduced contact lengths.
  • the stand designs described are modified in accordance with the invention in such a way that the roll gap is influenced either by the displacement or the pivoting of the work / intermediate roll.
  • a 6-roll stand is imperative in any case if an additional actuator influencing the edge drop of the strip is to be implemented in the stand.
  • This requires two independent sliding systems for profile and flatness.
  • the plant layout is largely determined by these criteria.
  • the range of system configurations ranges from classic cold tandem mills, consisting of 4-roll stands, to combined plants, consisting of 4- / 6-roll stands, right up to cold tandem mills.
  • esse which consists exclusively of 6-roll stands.
  • the basic procedure for realizing a belt edge-oriented shifting strategy exclusively for the intermediate rolls and exclusively in a 6-roll stand using a geometrically identical set of rolls is described in detail in DE 100 37 004 A1.
  • Fig. 3 shows the one-sided setback in the area of the barrel edge of a work ⁇ roll / intermediate roll
  • Fig. 4 stand conceptual with elongated intermediate roll barrel
  • FIG. 3 shows schematically the appearance and the geometrical arrangement of a one-sided backward d in the area of the bale edge of a work / intermediate roll 10, 11.
  • DE 100 37 004 A1 describes a one-sided regrinding, as used here, in detail and shown in a drawing figure.
  • the length I of the one-sided relief grinding d in the area of a bale edge of the work / intermediate roll 10, 11 is divided into two areas a and b placed against one another.
  • the transition between areas a and b can be carried out with or without a continuously differentiable transition. Furthermore, this transition of the regrinding can also be carried out with a sequential reduction of the dimension d resulting from the flattening according to a table previously determined. The regrind d is then, for example, flatter than a radius in the transition area and is much steeper at the end. The transition is due to grinding reasons to the cylindrical part via a correspondingly larger shoulder in the transition between a and b (approx. 2d).
  • the reduction in diameter 2d due to the relief grinding is predetermined such that the work roll 10 can freely bend around the relief grinding d of the intermediate roller 11 in a 6-roll stand, without fear of contact in the region b.
  • the regrinding d only serves to locally reduce the load peaks that occur.
  • the one-sided relief grinding d is located on the upper work / intermediate roll 10, 11 on the operating side BS and on the lower work / intermediate roll 10, 11 on the drive side AS, as shown in FIGS. 4 and 5.
  • the principle of operation does not change, however, if the reverse grinding d is reversed on the upper work / intermediate roll 10, 11 on the drive side AS and on the lower work / intermediate roll 10, 11 on the operating side BS.
  • FIG. 6a to 6c show the axial displacement of the intermediate roller 11 by a displacement stroke m.
  • the positioning depends on the bandwidth and the material properties, which means that the elastic behavior of the roll set and the effectiveness of the positive work roll bending (6-roll stand) can be set.
  • FIGS. 7a to 7c show the strip edge-oriented displacements of the work roll 10 which are carried out in the same way as for the intermediate roll 11 in FIGS. 6a to 6c.
  • the shift position is specified by piecewise linear approach functions, which are based on different positions of the beginning do of the regrinding d relative to the band edge.
  • a major advantage of the stand design described is that the CVC / CVC plus technology and the technology of belt edge-oriented displacement can be realized with only one geometrically identical set of rolls. Different types of rollers are no longer necessary. The only differences are in the applied roller grinding or a regrinding upwards. It is possible to combine both technologies with a swiveling of the work / intermediate rolls in the strip level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Prostheses (AREA)
  • Toys (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé pour le fonctionnement combiné de cages de laminoir individuelles dans un train de laminoir en tandem à froid comprenant deux cylindres de travail (10) et deux cylindres d'appui (12) pour les cages à 4 cylindres, et deux cylindres intermédiaires (11) supplémentaires pour les cages à 6 cylindres, au moins les cylindres de travail (10) et les cylindres intermédiaires (11) coopérant avec des dispositifs de déplacement axial. L'invention est caractérisée par la combinaison de différentes technologies, à savoir: l'application de la technologie CVC/CVC<plus> avec des profils de cylindres CVC d'ordre supérieur, chaque cylindre de travail/intermédiaire (10, 11) ayant un corps prolongé de la longueur de la course de déplacement ; l'application de la technologie Pair Cross (PC), chaque cylindre de travail/intermédiaire (10, 11) pouvant être déplacé parallèlement au plan du feuillard ; le déplacement des cylindres de travail/intermédiaires (10, 11) relativement au bord du feuillard, chaque cylindre de travail/intermédiaire (10, 11) ayant un corps prolongé de la longueur de la course de déplacement et un polissage cylindrique ou bombé, lesdits cylindres étant déplacés l'un contre l'autre relativement à une position de déplacement neutre (sZW = 0 ou sAW = 0) au milieu de la cage (Y-Y), de manière symétrique et de la même distance, dans le sens de leur axe de rotation (X-X). L'invention est aussi caractérisée en ce que, avec un concept d'installation correspondant comprenant seulement un jeu de cylindres de même géométrie, on peut appliquer la technologie CVC/CVC<plus>, la technologie du déplacement relativement au bord du feuillard, et éventuellement la technologie PC.
EP04803394A 2003-12-19 2004-12-01 Fonctionnements et types de cages combines dans des trains de laminoir en tandem a froid Expired - Lifetime EP1699573B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10359838 2003-12-19
DE102004020131A DE102004020131A1 (de) 2003-12-19 2004-04-24 Kombinierte Fahrweisen und Gerüsttypen in Kalttandemstraßen
PCT/EP2004/013623 WO2005063417A1 (fr) 2003-12-19 2004-12-01 Fonctionnements et types de cages combines dans des trains de laminoir en tandem a froid

Publications (2)

Publication Number Publication Date
EP1699573A1 true EP1699573A1 (fr) 2006-09-13
EP1699573B1 EP1699573B1 (fr) 2009-03-25

Family

ID=34740506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04803394A Expired - Lifetime EP1699573B1 (fr) 2003-12-19 2004-12-01 Fonctionnements et types de cages combines dans des trains de laminoir en tandem a froid

Country Status (13)

Country Link
US (1) US20070095121A1 (fr)
EP (1) EP1699573B1 (fr)
JP (1) JP2007514548A (fr)
KR (1) KR101224940B1 (fr)
CN (1) CN1894053A (fr)
AT (1) ATE426469T1 (fr)
BR (1) BRPI0417703A (fr)
CA (1) CA2548777C (fr)
DE (2) DE102004020131A1 (fr)
ES (1) ES2322365T3 (fr)
RU (1) RU2358819C2 (fr)
TW (1) TWI324093B (fr)
WO (1) WO2005063417A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006048427B3 (de) * 2006-10-12 2008-05-21 Siemens Ag Walzanlage, nachgerüstete Walzanlage, Walzwerk oder Walzstraße, Verfahren zum Ansteuern einer Walzanlage und Verwendung eines ersten Gerüsts einer Walzanlage
CN101633000B (zh) * 2008-07-22 2011-05-11 中冶赛迪工程技术股份有限公司 一种中间辊轴向移动装置
RU2492946C1 (ru) * 2012-07-31 2013-09-20 Александр Иванович Трайно Способ холодной прокатки стальных полос
EP3124130A1 (fr) * 2015-07-28 2017-02-01 Primetals Technologies Austria GmbH Meule de cylindre destinee a l'evitement cible de quarts d'onde
CN110883102B (zh) * 2019-11-29 2021-08-20 山东交通学院 一种用于热轧带钢同宽轧制条件的工作辊窜辊方法
CN111633030B (zh) * 2020-04-30 2022-03-18 首钢京唐钢铁联合有限责任公司 酸连轧机辊型配置结构及酸连轧机组

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DE3245090A1 (de) * 1982-12-06 1984-06-07 SMS Schloemann-Siemag AG, 4000 Düsseldorf Verfahren und einrichtung zum walzen von metallbaendern
JPS63264204A (ja) * 1987-04-23 1988-11-01 Mitsubishi Heavy Ind Ltd 圧延機
US5174144A (en) * 1990-04-13 1992-12-29 Hitachi, Ltd. 4-high rolling mill
WO1992020471A1 (fr) * 1991-05-16 1992-11-26 Kawasaki Steel Corporation Laminoir a six etages
JP2807379B2 (ja) * 1992-02-14 1998-10-08 株式会社日立製作所 タンデム圧延機及び作業ロールクロスミル
JP3127650B2 (ja) * 1993-02-10 2001-01-29 株式会社日立製作所 タンデム圧延機
JP3209024B2 (ja) * 1995-01-13 2001-09-17 株式会社日立製作所 圧延機及び冷間圧延機
JPH08267114A (ja) * 1995-03-31 1996-10-15 Kawasaki Steel Corp 冷間圧延におけるエッジドロップ制御圧延方法
US5655398A (en) * 1995-05-11 1997-08-12 Danieli United, A Division Of Danieli Corporation Roll crossing and shifting system
DE69710817T2 (de) * 1996-07-18 2002-11-14 Kawasaki Steel Corp., Kobe Walzverfahren und Walzwerk für Band zur Reduzierung der Kantenanschärfung
IT1293773B1 (it) * 1997-07-24 1999-03-10 Demag Italimpianti Spa Gabbia di laminazione a rulli incrociati, con assetto variabile.
DE19736767C2 (de) * 1997-08-23 2003-10-30 Sms Demag Ag Walzgerüst zum Walzen von Bändern
JP3803761B2 (ja) * 1997-08-27 2006-08-02 Ｊｆｅスチール株式会社 圧延機、その制御方法及び圧延形状制御方法
WO1999043452A1 (fr) * 1998-02-27 1999-09-02 Nippon Steel Corporation Procede de laminage de toles et laminoir
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DE10037004B4 (de) * 2000-07-29 2004-01-15 Sms Demag Ag Walzgerüst für bandkantenorientiertes Verschieben der Zwischenwalzen in einem 6-Walzen-Gerüst
DE10359402A1 (de) * 2003-12-18 2005-07-14 Sms Demag Ag Optimierte Verschiebestrategien als Funktion der Bandbreite

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Also Published As

Publication number Publication date
JP2007514548A (ja) 2007-06-07
BRPI0417703A (pt) 2007-03-20
WO2005063417A1 (fr) 2005-07-14
RU2006126054A (ru) 2008-01-27
ATE426469T1 (de) 2009-04-15
TW200529944A (en) 2005-09-16
ES2322365T3 (es) 2009-06-19
DE502004009244D1 (de) 2009-05-07
DE102004020131A1 (de) 2005-07-21
RU2358819C2 (ru) 2009-06-20
KR101224940B1 (ko) 2013-01-22
CN1894053A (zh) 2007-01-10
EP1699573B1 (fr) 2009-03-25
CA2548777C (fr) 2011-10-11
CA2548777A1 (fr) 2005-07-14
TWI324093B (en) 2010-05-01
US20070095121A1 (en) 2007-05-03
KR20060130582A (ko) 2006-12-19

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