EP0112969A2 - Procédé pour laminer des rubans métalliques - Google Patents

Procédé pour laminer des rubans métalliques Download PDF

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Publication number
EP0112969A2
EP0112969A2 EP83109368A EP83109368A EP0112969A2 EP 0112969 A2 EP0112969 A2 EP 0112969A2 EP 83109368 A EP83109368 A EP 83109368A EP 83109368 A EP83109368 A EP 83109368A EP 0112969 A2 EP0112969 A2 EP 0112969A2
Authority
EP
European Patent Office
Prior art keywords
rolls
roll
roll stand
bending
work rolls
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
EP83109368A
Other languages
German (de)
English (en)
Other versions
EP0112969A3 (en
EP0112969B2 (fr
EP0112969B1 (fr
Inventor
Wilfried Bald
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
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6179920&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0112969(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT83109368T priority Critical patent/ATE38480T1/de
Publication of EP0112969A2 publication Critical patent/EP0112969A2/fr
Publication of EP0112969A3 publication Critical patent/EP0112969A3/de
Application granted granted Critical
Publication of EP0112969B1 publication Critical patent/EP0112969B1/fr
Publication of EP0112969B2 publication Critical patent/EP0112969B2/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
    • 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
    • B21B13/02—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

Definitions

  • the invention relates to a method for rolling metal strips in a four-roll stand using axially displaceable and bending moment loadable work rolls and a four-roll stand for performing the method.
  • a disadvantage here is the high effort required, which not only consists in increasing the space requirement, lengthening the stands and interposing two additional rollers with chocks and arranging corresponding guide and displacement devices, increased costs and increased idle times also arise during operation, because now two more rollers have to be changed and then refurbished when changing the rollers.
  • the service life of the backup rolls increases slightly, but the wear on the work rolls increases, and the disadvantage is that the intermediate rolls are also subject to relatively high wear.
  • DE-PS 22 60 256 is recommended for four and six-roll stands to reduce the influence of the deflection of the work rolls on the profile of the rolling stock, to keep one end of the working surface of a work roll between an edge of the rolling stock and the end of the associated backup roll.
  • the profile improvements possible with the four-roll stand do not reach the desired extent, and the distribution of the areas of greatest wear that was previously possible through the program selection is no longer possible.
  • the invention is therefore based on the object, the possibilities of acting on the band profile while lowering the to increase the scaffolding to be driven construction and operating expenses.
  • the object is further achieved in a method of the type corresponding to the rolling of metal strips, in which the work rolls are shifted in opposite directions until a bale end of one of the work rolls is flush with each of the two strip edges, in order to achieve a predetermined profile of the rolling stock the bending devices attacking the work rolls for both positive and negative bending moments are set to their optimum value for the strip width and the profile, and the back-up rolls are axially displaced into an optimal position in the present strip width in order to achieve the profile.
  • the possibilities that result from the application of torque to the work rolls are increased by the fact that either positive or negative bending moments can be specified, and the possibilities that result are considerably increased by the support rolls also being designed to be axially displaceable.
  • the chocks of both the backup rolls and the work rolls are designed to be axially displaceable, and their actuating devices which control them are assigned to them, and furthermore the bending cylinders provided for bending the work rolls are arranged and designed such that they can cause both positive and negative bending moments.
  • FIG. 1 shows a section through the stands 1 and 2 of a four-roll stand, in the stand window 3 of which a cross member 4 is placed on the lower stand yokes, on which in the area of the stand rest slides 5, on which the chocks 6 of the lower support rolls 7 are supported.
  • On the top of the chocks 6 provided sliding surfaces - rest of chocks 8 of the lower work roll, above which the chocks 9 of the upper work roll 11 are provided, which abut on sliding surfaces of chocks 12 for the upper support roll.
  • the carriage 5 carrying the chocks 6 of the lower support roller 7 are coupled to one another by a link and can be axially displaced by a push rod 13.
  • the axes of the work rolls are overlapped by couplings and driven by means of spindles; push rods 14 and 15 continue to engage on the chocks shown lengthwise, and the chocks of the upper work roll can be displaced by a push rod 16.
  • the sliding surfaces provided at the top of the chocks 12 of the upper support roller are supported on a cross member 18 placed transversely through the stator window 3, which in turn is supported against the upper yokes of the stator 1 and 2 via pressure medium cylinders provided as adjusting devices. If necessary, one of the crossbeams 4 or 18 can additionally be supported by pressure measuring elements or the like.
  • the starting position during rolling can correspond to that of a conventional four-roll stand, in which the work and back-up rolls are symmetrical to the central vertical plane of the stand. Is rolled with such an arrangement essentially rolled material of the same width, there is increased erosion of the work rolls in the area of the strip edges, as is shown exaggerated in Fig. 2: In those surface areas of the work rolls 8, 9, in which mainly during rolling Strip edges of the rolling stock have run, zones 21 of increased erosion can be determined, the depth of which is decisive for changing the work rolls and reworking them, while in the intermediate zones 22 only a significantly lower erosion can be found.
  • the desired corrections of the roll gap are achieved here, if the displacement of the work rolls is essentially used to avoid strong local erosions of the work rolls, by a corresponding displacement of the support rolls in connection ... with a pre-bending of the work rolls.
  • a further correction of the crowning can be brought about in that the work rolls are additionally positioned horizontally in opposite directions from the horizontal plane having the support roll axes, both the mutually opposite chocks of a work roll and the two chocks of the work rolls held within a stand being set in opposite directions, so that there is a set effect.
  • the effective crossover point can be kept within the plane of symmetry of the stand even when the work rolls are axially displaced, or can be shifted against them if required.
  • FIGS. 2 and 5 to 8. 2 schematically shows the positions of the rolls which they assume in a conventional four-roll stand. Since the effect of the work roll bending is only moderate due to the support of the work rolls over their entire length by the relatively stiff backup rolls, it is common to use cambered rolls to compensate for the roll deflection.
  • FIG. 5 shows the same roller arrangement in a working state which can be achieved with a four-roll stand designed according to FIG. 1: the lower support roll 7 and the lower work roll 10 are jointly shifted to the right against the vertical plane of symmetry of the stand until the bale ends of the two rollers are flush with the left edge of the belt, and accordingly the upper work roller 10 and the upper support roller 17 shifted to the left until its right bale ends are flush with the right side edge of the rolling stock 20.
  • FIG. 6 Another possible operation is shown in FIG. 6.
  • the work rolls 10 and 11 are moved axially against one another in such a way that their bale ends are aligned with the edges of the rolling stock.
  • the support rollers 7 and 17, however, are either shifted to a lesser length of their bale or by a greater displacement so far that their bale ends are still displaced beyond the edges of the rolling stock 20, so that a short root piece of the bale of the work rolls runs without support.
  • the work rolls can be shifted or set horizontally at an angle, and such an inclination or setting can also be effected asymmetrically to the center of the stand or rolling stock.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Control Of Metal Rolling (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP83109368A 1982-12-06 1983-09-21 Procédé pour laminer des rubans métalliques Expired - Lifetime EP0112969B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83109368T ATE38480T1 (de) 1982-12-06 1983-09-21 Verfahren zum walzen von metallbaendern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3245090 1982-12-06
DE19823245090 DE3245090A1 (de) 1982-12-06 1982-12-06 Verfahren und einrichtung zum walzen von metallbaendern

Publications (4)

Publication Number Publication Date
EP0112969A2 true EP0112969A2 (fr) 1984-07-11
EP0112969A3 EP0112969A3 (en) 1984-09-26
EP0112969B1 EP0112969B1 (fr) 1988-11-09
EP0112969B2 EP0112969B2 (fr) 1997-03-19

Family

ID=6179920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83109368A Expired - Lifetime EP0112969B2 (fr) 1982-12-06 1983-09-21 Procédé pour laminer des rubans métalliques

Country Status (7)

Country Link
US (2) US4669296A (fr)
EP (1) EP0112969B2 (fr)
JP (1) JPS59110402A (fr)
AT (1) ATE38480T1 (fr)
DE (2) DE3245090A1 (fr)
RU (1) RU1787052C (fr)
UA (1) UA9902A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235769A2 (fr) * 1986-03-03 1987-09-09 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir
EP0239004A2 (fr) * 1986-03-20 1987-09-30 Hitachi, Ltd. Laminoir à cylindres de travail déplacable axialement

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325823A1 (de) * 1983-07-18 1985-01-31 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschiebbaren arbeitswalzen
JPS6297711A (ja) * 1985-10-24 1987-05-07 Nippon Steel Corp 圧延におけるエツジドロツプ防止方法
DE3624241C2 (de) * 1986-07-18 1996-07-11 Schloemann Siemag Ag Verfahren zum Betrieb eines Walzwerkes zur Herstellung eines Walzbandes
CA1286897C (fr) * 1987-01-09 1991-07-30 Mitsuhiro Ikeda Methode de laminage de la tole mince
JP2616917B2 (ja) * 1987-01-24 1997-06-04 株式会社日立製作所 ロールシフト圧延機による圧延方法
FR2613641B1 (fr) * 1987-04-09 1990-12-14 Clecim Sa Procede et installation de laminage d'un produit sous forme de bande, plus specialement une tole metallique ou un feuillard
US4898014A (en) * 1988-12-23 1990-02-06 United Engineering, Inc. Roll shifting system for rolling mills
US5093974A (en) * 1990-04-12 1992-03-10 United Engineering Inc. Bendable sleeved roll
DE4331261C2 (de) * 1992-10-15 1995-04-20 Achenbach Buschhuetten Gmbh Walzgerüst
US5970771A (en) * 1998-07-10 1999-10-26 Danieli United Continuous spiral motion system for rolling mills
DE10156087B4 (de) * 2001-11-16 2005-06-02 Müller Weingarten AG Vorrichtung zur Bearbeitung eines Metallbandes mit unterschiedlichen Dicken
DE102004020131A1 (de) * 2003-12-19 2005-07-21 Sms Demag Ag Kombinierte Fahrweisen und Gerüsttypen in Kalttandemstraßen
DE102004020132A1 (de) 2003-12-23 2005-07-28 Sms Demag Ag Verfahren und Walzgerüst zur mehrfachen Profilbeeinflussung
CN114260316B (zh) * 2020-09-16 2024-04-05 宝山钢铁股份有限公司 森吉米尔轧机第二中间辊的从动辊

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2260256A1 (de) * 1971-12-10 1973-06-20 Hitachi Ltd Walzgeruest und verfahren zum walzen von walzgut abnehmender breite
DE2334492A1 (de) * 1972-07-07 1974-01-17 Hitachi Ltd Steuergeraet fuer walzgerueste
DE2335809A1 (de) * 1972-07-17 1974-01-31 Hitachi Ltd Walzgeruest
EP0026903A1 (fr) * 1979-10-04 1981-04-15 Hitachi, Ltd. Laminoir
JPS56148405A (en) * 1980-04-18 1981-11-17 Ishikawajima Harima Heavy Ind Co Ltd Rolling mill

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2047883A (en) * 1935-09-03 1936-07-14 Charles W Phillips Rolling mill
US2566679A (en) * 1943-02-25 1951-09-04 Armzen Company Rolling mill and lubrication method and means therefor
DE1573407B1 (de) * 1965-10-05 1970-09-03 Asea Ab Anordnung bei Bandwalzwerken zum Messen der Verteilung des Bandzuges ueber die Bandbreite
GB1299181A (en) * 1969-02-20 1972-12-06 George Ernest Evans Warder Improved rotary hydraulic machines
US3943742A (en) * 1973-08-24 1976-03-16 Hitachi, Ltd. Rolling mill
JPS5946689B2 (ja) * 1974-07-24 1984-11-14 株式会社日立製作所 圧延方法
JPS52141458A (en) * 1976-05-21 1977-11-25 Hitachi Ltd Continuous hot rolling device
JPS5366849A (en) * 1976-11-26 1978-06-14 Hitachi Ltd Rolling machine
JPS6040928B2 (ja) * 1978-08-09 1985-09-13 株式会社日立製作所 圧延機
JPS5573403A (en) * 1978-11-28 1980-06-03 Nippon Steel Corp Rolling method for reducing local abrasion of roll
JPS6051921B2 (ja) * 1978-12-08 1985-11-16 川崎製鉄株式会社 形状制御圧延方法
JPS5577904A (en) * 1978-12-08 1980-06-12 Kawasaki Steel Corp Rolling method for shape control
JPS5938842B2 (ja) * 1979-07-03 1984-09-19 川崎製鉄株式会社 ホツトストリツプのハイスポツト防止圧延法
DE2946108C2 (de) * 1979-11-15 1985-02-14 Koch & Sterzel Gmbh & Co, 4300 Essen Strahlendetektor
SE446952B (sv) * 1980-04-25 1986-10-20 Asea Ab Regleranordning vid band- eller platvalsverk
JPS56163006A (en) * 1980-05-19 1981-12-15 Nhk Spring Co Ltd Driving method for rolling roll for flat spring
DE3038865C1 (de) * 1980-10-15 1982-12-23 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschiebbaren Walzen
DE3107693A1 (de) * 1981-02-28 1982-09-16 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest
DE3122128A1 (de) * 1981-06-04 1982-12-23 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest
JPS57181708A (en) * 1981-05-01 1982-11-09 Kawasaki Steel Corp Controlling method of crown of strip

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2260256A1 (de) * 1971-12-10 1973-06-20 Hitachi Ltd Walzgeruest und verfahren zum walzen von walzgut abnehmender breite
DE2334492A1 (de) * 1972-07-07 1974-01-17 Hitachi Ltd Steuergeraet fuer walzgerueste
DE2335809A1 (de) * 1972-07-17 1974-01-31 Hitachi Ltd Walzgeruest
EP0026903A1 (fr) * 1979-10-04 1981-04-15 Hitachi, Ltd. Laminoir
JPS56148405A (en) * 1980-04-18 1981-11-17 Ishikawajima Harima Heavy Ind Co Ltd Rolling mill

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan Band 6, Nr. 33, 27. Februar 1982 & JP-A-56-148405 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235769A2 (fr) * 1986-03-03 1987-09-09 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir
EP0235769A3 (en) * 1986-03-03 1989-04-12 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill stand
EP0239004A2 (fr) * 1986-03-20 1987-09-30 Hitachi, Ltd. Laminoir à cylindres de travail déplacable axialement
EP0239004A3 (en) * 1986-03-20 1988-03-23 Hitachi, Ltd. Working roll shift type rolling mill
US4770021A (en) * 1986-03-20 1988-09-13 Hitachi, Ltd. Working roll shift type rolling mill

Also Published As

Publication number Publication date
DE3378403D1 (en) 1988-12-15
US4711116A (en) 1987-12-08
JPS59110402A (ja) 1984-06-26
UA9902A (uk) 1996-09-30
US4669296A (en) 1987-06-02
JPH0361522B2 (fr) 1991-09-20
EP0112969A3 (en) 1984-09-26
EP0112969B2 (fr) 1997-03-19
RU1787052C (ru) 1993-01-07
ATE38480T1 (de) 1988-11-15
EP0112969B1 (fr) 1988-11-09
DE3245090A1 (de) 1984-06-07

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