EP0091540B1 - Cage de laminoir à cylindres déplaçables axialement - Google Patents

Cage de laminoir à cylindres déplaçables axialement Download PDF

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Publication number
EP0091540B1
EP0091540B1 EP83101219A EP83101219A EP0091540B1 EP 0091540 B1 EP0091540 B1 EP 0091540B1 EP 83101219 A EP83101219 A EP 83101219A EP 83101219 A EP83101219 A EP 83101219A EP 0091540 B1 EP0091540 B1 EP 0091540B1
Authority
EP
European Patent Office
Prior art keywords
rolls
roll
backing
working
work
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
Application number
EP83101219A
Other languages
German (de)
English (en)
Other versions
EP0091540A1 (fr
Inventor
Hugo Dr. Feldmann
Friedrich Dr. Hollmann
Gerd Beisemann
Horst Gärtner
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 Schloemann Siemag 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 Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT83101219T priority Critical patent/ATE17663T1/de
Publication of EP0091540A1 publication Critical patent/EP0091540A1/fr
Application granted granted Critical
Publication of EP0091540B1 publication Critical patent/EP0091540B1/fr
Expired 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
    • 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

Definitions

  • the invention relates to a four-high rolling mill with work rolls which are supported on support rolls, the work rolls being axially displaceable relative to one another and both the work rolls and the support rolls being provided with a curved contour which extends over the entire length of the bale and consists of a convex and a concave region composed and which has a shape in which the bale contours of mutually supporting or cooperating rollers complement each other only in a certain relative axial position of these rollers.
  • Such a four-high mill stand is known from "Patent Abstracts of Japan Volume 5, No. 83, May 30, 1981 page 5M71 & JP-A-56-30014".
  • the work rolls are axially displaceable against each other, while the backup rolls are immovable, i.e. the support rollers are fixed in the axial direction.
  • the particular advantage of this type of stand is that the shape of the roll gap and thus the cross-sectional shape of the rolling stock can already be influenced by the small displacement paths of the contoured rolls.
  • the roll gap is changed by the axial relative displacement of the two contoured work rolls.
  • This change in roll gap is superimposed by a bending of the work rolls, which is caused by the fact that an axial displacement of a work roll also means a relative displacement with respect to the fixed contoured support roll supporting it. Since after the work roll shift the contours of the two supporting rolls no longer complement each other, the pressure distribution changes over the length of the contact section of both roll bales; the work rolls are bent. The bending of the work gap, which results from the axial relative displacement of the work rolls relative to one another, increases the effect of the roll gap.
  • a disadvantage of this type of scaffolding is that the pressure distribution between each work roll and the supporting roll supporting it changes with the axial displacement of the work rolls. This leads to the creation of marking zones on the bale surface of the work roll, which are also transferred to the surface of the rolling stock. This is particularly undesirable when dressing tapes.
  • the invention is concerned with the development of the known four-high mill stand. It is based on the task of improving the possibility of influencing the roll gap profile, but also of ensuring, if necessary, an optimal equalization of the pressure distribution.
  • the work rolls and backup rolls can be moved independently of one another.
  • the roll gap profile can be influenced much more sensitively than in the known four-high roll stand with supporting rolls fixed in the axial direction.
  • the invention also includes a six-high rolling stand, the rolling stand coming closest to EP-A2-49798 [Art. 54 (3) EPC], which has work rolls which are supported on backup roll-supported intermediate rolls.
  • the work rolls and / or intermediate rolls and / or backup rolls are axially displaceable.
  • Each roller of one of these roller pairs is provided with a curved contour running in the direction towards the end of the bale. This contour extends over the entire length of the bale of both rollers on opposite sides and has a shape in which the two bale contours complement each other exclusively in a certain relative axial position.
  • the object is to not only improve the uniformity of the pressure distribution over the contact length of two adjacent rolls, but also to increase the continuous mechanical influence on the shape of the roll gap.
  • a six-high roll stand with work rolls is proposed, which are supported on support roll-supported intermediate rolls, the work rolls and / or support rolls and / or intermediate rolls being axially displaceable relative to one another and providing the rolls of at least two pairs of rolls with a curved contour extending over the entire length of the bale are, which is composed of a convex and a concave area, the bale contours of mutually supporting or interacting rollers complement each other exclusively in a certain relative axial position of these rollers.
  • a configuration option for a six-high roll stand is that only the back-up rolls have cylindrical or conventionally crowned roll balls, while according to claim 4 only the work rolls are provided with cylindrical or conventionally crowned roll balls.
  • roller sets of the four-high mill stand according to FIG. 1 and the six-high mill stands according to FIGS. 2 to 4 are shown in the drawing.
  • the four-high mill stand 51 according to FIG. 1 has a set of rolls consisting of the pair of backup rolls 52, 53 and the pair of work rolls 54, 55.
  • the pair of work rolls 54, 55 delimits the roll gap 56 for the rolled strip 57.
  • the height of the roll gap 56 is determined in a conventional manner by adjusting devices (not shown) which act on the chocks of the support roll pair 52 and 53.
  • the roll balls 52 'and 53' of the support rolls 52 and 53 have a curved contour over their entire length, in such a way that in the case of the upper support roll 52 this contour is convex over the left half of the roll roll 52 'and over the right one Half of the same is concave, while in the lower support roller 53 'it is concave over the left half of the roller barrel 53' and convex over the right half of the same.
  • Both sections of the roller bales 52 'and 53' are determined by the same curvature curves, and it can also be seen from FIG. 1 that both support rollers 52 and 53 have an identical - here bottle-like shape of the roller bale 52 'and 53' as well as in the roller stands of the roll stand 51 are accommodated relative to one another in the installation position turned through 180 °.
  • the two work rolls 54 and 55 of the work roll pair also have roll bales 54 'and 55' with a contour that is curved over their entire length, this being designed to be complementary to the contour of the roll bale 52 'and 53' of the adjacent support roll 52 and 53, respectively.
  • the roll bale 54 'of the upper work roll 54 has a concave course over its left half and a convex course over its right half
  • the roll bale 55' of the lower work roll 55 has a convex curve over the left half and a concave curve over the right half.
  • the two work rolls 54 and 55 have an identical — in this case bottle-like — shape of their roll bales 54 ′ and 55 ′ and are also accommodated in the roll stand relative to one another in an installed position turned through 180 °.
  • the roller gap 56 has a constant cross-sectional height over the entire bale length, although it runs slightly S-shaped welded.
  • the rolled strip 57 is therefore rolled out over its entire width with a uniform thickness.
  • a further influence on the shape of the roll gap 56 is possible, however, in that the work rolls 54 and / or 55 are also displaced axially relative to the support rolls 52 and / or 53.
  • the pressure distribution between the roll bales 52 'and 54' and 53 'of the backup roll set 52, 53 and the work roll set 54, 55, which are in contact with one another, can be influenced very sensitively and the shape of the roll gap 56 can thus be further optimized.
  • the basic structure of the six-high mill stand 61 according to FIG. 2 is the same as that of the four-high mill stand 51 according to FIG. 1.
  • the set of rolls here does not only consist of the support roll pair 62, 63 comprising the two support rolls 62 and 63, and that of the two Work rolls 64 and 65 comprising work roll pair 64, 65, but an additional pair of intermediate rolls 68, 69 consisting of the two intermediate rolls 68 and 69 is additionally provided.
  • the roll gap for the rolled strip 67 is limited between the two work rolls 64 and 65 of the work roll pair 64, 65.
  • the contours, which are each convex over one bale half and concave over the other bale half, are on the roller bales 62 ', 68', 64 'and 63', 69 ', 65' of the support rollers 62, 63, the intermediate rollers 68, 69 which are in contact with one another and the work rolls 64, 65 are coordinated with one another in such a way that they complement one another in the central axial position of all the roll pairs of the six-high mill stand 61 according to FIG. 2.
  • the roll gap 66 for the rolled strip 67 therefore, despite its slightly S-shaped cross-sectional shape, has the same height over its entire length.
  • the contour of the nip 66 can then be delicately influenced by relative axial displacement of the rollers of any one roller pair 62, 63 or 64, 65 or 68, 69 to one another and / or to the rollers of the other roller sets, specifically by the additional presence of the intermediate roller pair 68, 69 even more sensitive than in the case of the four-high mill stand 51 according to FIG. 1.
  • the support rollers 62 and 63 of the support roller pair 62, 63 as well as the work rollers 64 and 65 of the work roller pair 64, 65 and finally the intermediate rollers 68 and 69 of the intermediate roller pair 68 and 69 have an identical one , bottle-like shape of the roller barrel. They are accommodated in the roll stands of the rolling stand relative to each other in each case by 180 0 turned-over installation position.
  • six-high roll stands 71 and 81 can also be varied with respect to the design of their roll set compared to the design according to FIG. 2.
  • the back-up rolls 72 and 73 of the pair of back-up rolls use roll balls 72 'and 73' of cylindrical or conventionally spherical shape over their entire length in the design according to FIG. 3, the work rolls 74 and 75 of the work roll pair 74, 75 and the intermediate rolls 78 and 79 of the intermediate roller pair 78, 79 equipped with roller balls 74 ', 75' and 78 ', 79', which have a curved contour over their entire length.
  • the work rolls 84 and 85 of the work roll pair 84, 85 roll bales 84 'and 85' have a cylindrical or conventionally spherical shape over their entire length.
  • the roll balls 82 ', 83' of the support rolls 82 and 83 and the roll balls 88 'and 89' of the intermediate rolls 88 and 89 are provided with a contour that is curved over their entire length.
  • the influencing of the roll gap 86 for the rolled strip 87 takes place here through the axially displaceable arrangement of the support rolls 82 and 83 and / or the intermediate rolls 88 and 89, while the work rolls 84 and 85 are axially immovable in their chocks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (4)

1. Cage de laminoir quarto comportant des cylindres de travail (54 et 55) qui prennent appui sur les cylindres d'appui (52 et 53), les cylindres de travail (54 et 55) pouvant être déplacés l'un par rapport à l'autre dans le sens axial et les cylindres de travail (54 et 55) comme les cylindres d'appui (52 et 53) ayant un contour incurvé sur toute la longueur de la table qui est composé d'une zone convexe et d'une zone concave et a une forme telle que les contours des tables des cylindres qui prennent appui les uns sur les autres (52, 54, 53, 55) ou coopèrent les uns avec les autres (52 et 53, 54 et 55) se complètent d'une manière complémentaire exclusivement dans une position axiale relative déterminée de ces cylindres, caractérisée en ce que les cylindres d'appui (52 et 53) peuvent, eux aussi, être déplacés dans le sens axial l'un par rapport à l'autre et en ce que le déplacement des cylindres d'appui (52 et 53) s'effectue soit indépendamment de celui des cylindres de travail (54 et 55) soit en même temps que lui.
2. Cage de laminoir sexto comportant des cylindres de travail (64 et 65) qui prennent appui sur des cylindres intermédiaires (68 et 69) prenant appui sur des cylindres d'appui, les cylindres de travail (64 et 65) et/ou les cylindres d'appui (62 et 63) et/ou les cylindres intermédiaires (68 et 69) pouvant être déplacés dans le sens axial les uns par rapport aux autres et les cylindres d'au moins deux paires de cylindres (62 et 63; 64, 65; 68, 69) comportant un contour incurvé sur toute la longueur de la table composé d'une zone convexe et d'une zone concave, les contours des tables des cylindres qui prennent appui les uns sur les autres (62 et 68, 64 et 68, 63 et 69, 65 et 69) ou coopèrent les uns avec les autres (62 et 63, 64 et 65, 68 et 69) se complétant d'une manière complémentaire exclusivement dans une position axiale médiane de ces cylindres.
3. Cage de laminoir selon la revendication 2, caractérisé en ce que seuls les cylindres d'appui (72 et 73) de la paire de cylindres d'appui (72, 73) comportent des tables (72', 73') cylindriques ou bombées d'une manière classique.
4. Cage de laminoir selon la revendication 2, caractérisé en ce que seuls les cylindres de travail (84 et 85) de la paire de cylindres de travail (84 et 85) comportent des tables (84', 85') cylindriques ou bombées d'une manière classique.
EP83101219A 1982-04-10 1983-02-09 Cage de laminoir à cylindres déplaçables axialement Expired EP0091540B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101219T ATE17663T1 (de) 1982-04-10 1983-02-09 Walzgeruest mit axial verschiebbaren walzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3213496 1982-04-10
DE19823213496 DE3213496A1 (de) 1982-04-10 1982-04-10 Walzgeruest mit axial verschiebbaren walzen

Publications (2)

Publication Number Publication Date
EP0091540A1 EP0091540A1 (fr) 1983-10-19
EP0091540B1 true EP0091540B1 (fr) 1986-01-29

Family

ID=6160772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101219A Expired EP0091540B1 (fr) 1982-04-10 1983-02-09 Cage de laminoir à cylindres déplaçables axialement

Country Status (6)

Country Link
EP (1) EP0091540B1 (fr)
JP (1) JPS58187207A (fr)
AT (1) ATE17663T1 (fr)
DE (2) DE3213496A1 (fr)
SU (1) SU1355112A3 (fr)
UA (1) UA5713A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19736767A1 (de) * 1997-08-23 1999-03-04 Schloemann Siemag Ag Walzgerüst zum Walzen von Bändern
DE19816602C1 (de) * 1998-04-15 1999-05-27 Schloemann Siemag Ag Walzgerüst mit axial verschiebbaren Walzen
AT410765B (de) * 2001-09-12 2003-07-25 Voest Alpine Ind Anlagen Walzgerüst zur herstellung von walzband
DE102012212532A1 (de) 2012-07-18 2014-01-23 Achenbach Buschhütten GmbH & Co. KG Walzgerüst mit konturierten Walzen

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331055C2 (de) * 1983-08-29 1994-11-03 Schloemann Siemag Ag Walzgerüst mit axial verschieblichen Arbeitswalzen
JPS61209705A (ja) * 1985-03-14 1986-09-18 Ishikawajima Harima Heavy Ind Co Ltd 圧延方法および装置
DE3602698A1 (de) * 1985-04-16 1986-10-16 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschiebbaren walzen
JPH0763736B2 (ja) * 1985-07-18 1995-07-12 エスエムエス シユレ−マン・ジ−マグ アクチエン ゲゼルシヤフト ロ−ル胴が湾曲している複数個のロ−ルを備えた圧延機
JPH0673690B2 (ja) * 1986-05-30 1994-09-21 川崎重工業株式会社 圧延方法
DE3620197A1 (de) * 1986-06-16 1987-12-17 Schloemann Siemag Ag Walzwerk zur herstellung eines walzgutes, insbesondere eines walzbandes
JPS6320106A (ja) * 1986-07-11 1988-01-27 Kawasaki Heavy Ind Ltd 圧延機のロール及びその製造方法
DE3624241C2 (de) * 1986-07-18 1996-07-11 Schloemann Siemag Ag Verfahren zum Betrieb eines Walzwerkes zur Herstellung eines Walzbandes
DE3634367A1 (de) * 1986-10-09 1988-04-21 Schloemann Siemag Ag Walzen-anordnung zur verformungsfreien behandlung von bewegten bandfoermigen erzeugnissen
DE3638331C2 (de) * 1986-11-10 1995-07-13 Schloemann Siemag Ag Walzgerüst zum Walzen von Flachmaterial mit einem Paar von axial verschiebbaren Arbeitswalzen
JPS63238905A (ja) * 1987-03-27 1988-10-05 Sumitomo Metal Ind Ltd 薄板圧延用６段圧延機
DE3712043C2 (de) * 1987-04-09 1995-04-13 Schloemann Siemag Ag Walzgerüst mit axial verschiebbaren Walzen
JPS63264204A (ja) * 1987-04-23 1988-11-01 Mitsubishi Heavy Ind Ltd 圧延機
GB2222376B (en) * 1988-08-29 1993-04-07 Sendzimir Inc T Apparatus and method for cold rolling of metal strip
US5622073A (en) * 1991-05-16 1997-04-22 Kawasaki Steel Corporation Six high rolling mill
DE69226690T3 (de) * 1991-05-16 2005-02-10 Kawasaki Steel Corp., Kobe Sechs-walzen-walzwerk
DE19811633B4 (de) * 1998-03-18 2008-01-31 Sms Demag Ag Walzenanordnung zum Walzen von Bändern
DE102004020132A1 (de) * 2003-12-23 2005-07-28 Sms Demag Ag Verfahren und Walzgerüst zur mehrfachen Profilbeeinflussung
EP2026916B1 (fr) * 2006-06-14 2012-08-01 Siemens VAI Metals Technologies GmbH Cage de laminoir pour la fabrication de bande laminée ou de tôle
AT509107B1 (de) 2009-12-10 2011-09-15 Siemens Vai Metals Tech Gmbh Walzgerüst zur herstellung von walzband

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1452153A1 (de) * 1965-11-26 1968-12-12 Verwaltungsgesellschaft Moelle Walzwerk zur Herstellung von Flachprodukten,z.B. von Blechen und Baendern
JPS517635B2 (fr) * 1971-12-10 1976-03-09
JPS5630014A (en) * 1979-08-17 1981-03-26 Kobe Steel Ltd Rolling mill
DE3038865C1 (de) * 1980-10-15 1982-12-23 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschiebbaren Walzen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19736767A1 (de) * 1997-08-23 1999-03-04 Schloemann Siemag Ag Walzgerüst zum Walzen von Bändern
DE19736767C2 (de) * 1997-08-23 2003-10-30 Sms Demag Ag Walzgerüst zum Walzen von Bändern
DE19816602C1 (de) * 1998-04-15 1999-05-27 Schloemann Siemag Ag Walzgerüst mit axial verschiebbaren Walzen
AT410765B (de) * 2001-09-12 2003-07-25 Voest Alpine Ind Anlagen Walzgerüst zur herstellung von walzband
DE102012212532A1 (de) 2012-07-18 2014-01-23 Achenbach Buschhütten GmbH & Co. KG Walzgerüst mit konturierten Walzen
DE102012212532B4 (de) * 2012-07-18 2016-12-15 Achenbach Buschhütten GmbH & Co. KG Walzgerüst mit konturierten Walzen

Also Published As

Publication number Publication date
EP0091540A1 (fr) 1983-10-19
DE3361941D1 (en) 1986-03-13
JPH0547282B2 (fr) 1993-07-16
UA5713A1 (uk) 1994-12-28
SU1355112A3 (ru) 1987-11-23
ATE17663T1 (de) 1986-02-15
JPS58187207A (ja) 1983-11-01
DE3213496A1 (de) 1983-10-20

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