EP0941787A1 - Element support pour une installation de coulée continue - Google Patents

Element support pour une installation de coulée continue Download PDF

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Publication number
EP0941787A1
EP0941787A1 EP99103619A EP99103619A EP0941787A1 EP 0941787 A1 EP0941787 A1 EP 0941787A1 EP 99103619 A EP99103619 A EP 99103619A EP 99103619 A EP99103619 A EP 99103619A EP 0941787 A1 EP0941787 A1 EP 0941787A1
Authority
EP
European Patent Office
Prior art keywords
guide
roller
element according
guide element
strand
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
EP99103619A
Other languages
German (de)
English (en)
Other versions
EP0941787B1 (fr
Inventor
Fritz-Peter Prof. Dr. Ing. Pleschiutschnigg
Joachim Schwellenbach
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
Priority claimed from DE19841841A external-priority patent/DE19841841C2/de
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0941787A1 publication Critical patent/EP0941787A1/fr
Application granted granted Critical
Publication of EP0941787B1 publication Critical patent/EP0941787B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • 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
    • B21B13/14—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
    • 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
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/14—Soft reduction
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B31/04—Rolling stand frames or housings; Roll mountings ; Roll chocks with tie rods in frameless stands, e.g. prestressed tie rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/008—Rollers for roller conveyors

Definitions

  • the present invention relates to a guide element of a continuous caster, especially a thin slab caster for Guide a metal strip in a strand guiding direction, with at least one pair opposite each other with respect to the metal strip Guide rollers that form a roller gap.
  • This type of strand concavity can be in the region of the strand Solidification and after solidification are not fair at the same time become.
  • Special reasons for this are e.g. B. the reduction of Strand thickness during solidification between the mold outlet and Final solidification, in the professional world as casting rolls with a liquid core, known as “cast rolling" or “liquid core reduction”.
  • the strand shell lies on the area where the strand solidifies the role profile completely, caused by the ruling ferrostatic pressure or the pending steel column between Casting level and the observed strand shell point.
  • the strand frozen in its shape e.g. B. with a profile of advantageously 1% increase in thickness in the middle of the strand opposite the narrow side area, which continues on the way of the strand no longer as a percentage up to the end of the strand guide changes.
  • the only change that still occurs in the strand geometry occurs due to the cooling of the entire strand due to cooling.
  • This shrinkage of the strand after solidification must follow strand guidance to make a roller contact to the strand and thus ensure the rotation of the rollers.
  • the object of the present invention is therefore a To design the guide element of a continuous caster such that the strand concavity both in the area of solidification and after the solidification is optimally adjustable.
  • the object is achieved in that the pair of guide roles an adjusting device for setting a crown of the roller gap assigned. Because this means the roller gap on one Defined crowning that can be selected as required.
  • the adjustment device is both pressure and position controlled can be operated or controlled in a particularly simple manner and on the one hand the shape in the strand area with liquid core and on the other hand the roller contact in the solidified metal strip be guaranteed.
  • the setting device should preferably be on act on the central bearing.
  • the influence of the support roller on the guide roller is special reliable if the support roller turns over the guide roller a non-zero support angle is twisted.
  • the setting device can also have an additional support roller act on the at least one leadership role, the Support roller and the additional support roller in the strand guide direction seen above or below the guide roller are arranged.
  • At least one of the frames has a crossbar, use which he arranged centrally over the crossbar Fastening device is connected to a base segment guide, can the frame - e.g. when heated - symmetrical and unimpeded expand.
  • the setting of the roller gap between the guide rollers is preferably carried out by means of a hydraulic cushion.
  • the hydraulic cushion is preferably just like the adjustment device both pressure and position controlled or regulated adjustable.
  • the guide rollers 1, 2 form a roller gap 3 and lie with respect to one another leading metal strip 4 opposite.
  • the metal strip 4 has one Thickness between 40 and 100 mm, e.g. B. 50 mm.
  • the guide rollers 1, 2 are mounted in frames 5, 6.
  • the frames 5, 6 are designed to withstand tensile and compressive loads and via tie rods 7 tense together.
  • Between the frames 5, 6 is a hydraulic one Cushions 8 arranged. By means of this hydraulic cushion 8 the frames 5, 6 are adjustable relative to each other.
  • the guide rollers 1, 2 are according to FIG. 1 as split guide rollers educated. They therefore have center bearings 9, 10. In the middle of crossbeams 5 ', 6' are hydraulic cylinder units 11, 12 mounted, which act on the central bearings 9, 10.
  • the cross members 5 ', 6' are part of the respective frame 5, 6.
  • the crowning is via the hydraulic cylinder units 11, 12 of the roller gap 3 adjustable.
  • the hydraulic cylinder units 11, 12 thus form an adjusting device for adjusting the crowning of the roller gap 3, the pair of guide rollers 1, 2nd assigned.
  • the crown of the guided metal strip is 4 targeted at e.g. 1% or 2% adjustable.
  • the hydraulic cylinder units 11, 12 are both pressure and can be operated with position control. Likewise, the hydraulic one Pillow adjustable both pressure and position controlled. Instead of of hydraulic cylinder units 11, 12 are self-evident other control elements can also be used, e.g. electromechanical. Instead of a regulation there is also a control for pressure and Position can be used.
  • the adjusting device is position-controlled operated and the hydraulic cushion 8 position-controlled set. Due to the ferrostatic pressure caused by the Liquid core 4 'is conditional, the metal strip 4 thus adapts to the set roller gap 3.
  • the position regulations both a defined liquid core reduction possible as well as a defined crowning adjustable. The reduction the strand thickness during the solidification of the metal strip 4 can up to 60%.
  • the setting device is preferably pressure-controlled operated.
  • the hydraulic cushion 8 is also in this case preferably set pressure-controlled. Because that fits Roller gap 3 to the now rigid metal strip 4. The turning on the guide rollers are thus ensured. If a so-called Soft reduction should be desired, this can be done by default correspondingly high pressure setpoints can be achieved.
  • the lower cross member 6 'in FIG. 1 has a fastening device 13 on.
  • the fastening device 13 is relative to the Crossbar 6 'arranged centrally.
  • the fastening device 13 is the crossbar 6 'and with it the frame 5, 6 with a base segment guide 14 connected.
  • the fastening device 13 can work hydraulically or mechanically.
  • the so fixed Crossbeam 6 'of the frame 6 can therefore - e.g. with thermal Extend warming symmetrically. This makes mechanical Tensions avoided.
  • the guide rollers 1, 2 can, as shown in FIGS. 2 and 3, also be designed as continuous guide rollers 1, 2.
  • the corresponding hydraulic cylinder unit 11 acts, 12 via at least one support roller 15, 16 onto the respective guide roller 1, 2 a.
  • the support roller 15 is the only support roller which acts on the guide roller 1 preferably the support roller 15 by a support angle ⁇ compared to respective guide roller 1 rotated.
  • the support angle ⁇ should Range up to a maximum of 10 °.
  • the adjustment device as in the case of the lower guide roller 2, also via an additional support roller 17 on the respective guide roller 2 acts, is a rotation of the support roller 16 and Additional support roller 17 is not required. Because in this case can For example, the support roller 16 seen in the strand guide direction x above the guide roller 2 may be arranged while the additional support roller 17 is arranged below the guide roller 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP99103619A 1998-03-09 1999-02-25 Element support pour une installation de coulée continue Expired - Lifetime EP0941787B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19809811 1998-03-09
DE19809811 1998-03-09
DE19841841 1998-09-12
DE19841841A DE19841841C2 (de) 1998-03-09 1998-09-12 Führungselement einer Stranggießanlage

Publications (2)

Publication Number Publication Date
EP0941787A1 true EP0941787A1 (fr) 1999-09-15
EP0941787B1 EP0941787B1 (fr) 2005-09-28

Family

ID=26044434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99103619A Expired - Lifetime EP0941787B1 (fr) 1998-03-09 1999-02-25 Element support pour une installation de coulée continue

Country Status (4)

Country Link
EP (1) EP0941787B1 (fr)
JP (1) JPH11314143A (fr)
AT (1) ATE305348T1 (fr)
DE (1) DE59912592D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002013994A1 (fr) * 2000-08-17 2002-02-21 Sms Demag Aktiengesellschaft Dispositif de coulee continue de metaux, notamment d'acier
WO2009118222A1 (fr) * 2008-03-28 2009-10-01 Siemens Vai Metals Technologies Gmbh & Co Segment de guidage de barre coulée
AT506824B1 (de) * 2008-05-26 2013-01-15 Siemens Vai Metals Tech Gmbh Mehrstrang-stranggiessanlage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100596474B1 (ko) 2004-09-07 2006-07-03 주식회사 포스코 연속주조기의 구동롤 받침 프레임
DE102007045201A1 (de) 2007-08-04 2009-02-05 Sms Demag Ag Verfahren und Vorrichtung zum Ausgleich von Rollenverschleiß bei Stranggießanlagen

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167964A (en) * 1975-05-30 1979-09-18 Escher-Wyss Limited Continuous casting plant
JPS59113963A (ja) * 1982-12-21 1984-06-30 Kawasaki Steel Corp 連続鋳造鋳片支持装置
JPS63273504A (ja) * 1987-05-01 1988-11-10 Sumitomo Metal Ind Ltd クラウン調整ロ−ル
US4955428A (en) * 1986-08-18 1990-09-11 Mannesmann Ag Device for continuous casting of slabs
JPH04187307A (ja) * 1990-11-19 1992-07-06 Ube Ind Ltd 圧延機
WO1995020447A1 (fr) * 1994-01-28 1995-08-03 Mannesmann Ag Rouleaux de cadre de guidage pour metal coule en continu
WO1996033826A1 (fr) * 1995-04-25 1996-10-31 Voest Alpine Industrieanlagenbau Gmbh Procede a deux rouleaux pour la fabrication d'un produit continu sous forme d'une bande metallique et dispositif pour la mise en ×uvre de ce procede
US5609054A (en) * 1991-09-10 1997-03-11 Nippon Steel Corporation Rolling mill for flat products
EP0647486B1 (fr) * 1993-10-07 1998-01-28 Mitsubishi Jukogyo Kabushiki Kaisha Laminoir

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167964A (en) * 1975-05-30 1979-09-18 Escher-Wyss Limited Continuous casting plant
JPS59113963A (ja) * 1982-12-21 1984-06-30 Kawasaki Steel Corp 連続鋳造鋳片支持装置
US4955428A (en) * 1986-08-18 1990-09-11 Mannesmann Ag Device for continuous casting of slabs
JPS63273504A (ja) * 1987-05-01 1988-11-10 Sumitomo Metal Ind Ltd クラウン調整ロ−ル
JPH04187307A (ja) * 1990-11-19 1992-07-06 Ube Ind Ltd 圧延機
US5609054A (en) * 1991-09-10 1997-03-11 Nippon Steel Corporation Rolling mill for flat products
EP0647486B1 (fr) * 1993-10-07 1998-01-28 Mitsubishi Jukogyo Kabushiki Kaisha Laminoir
WO1995020447A1 (fr) * 1994-01-28 1995-08-03 Mannesmann Ag Rouleaux de cadre de guidage pour metal coule en continu
WO1996033826A1 (fr) * 1995-04-25 1996-10-31 Voest Alpine Industrieanlagenbau Gmbh Procede a deux rouleaux pour la fabrication d'un produit continu sous forme d'une bande metallique et dispositif pour la mise en ×uvre de ce procede

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 234 (M - 334) 26 October 1984 (1984-10-26) *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 076 (M - 800) 21 February 1989 (1989-02-21) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 507 (M - 1327) 20 October 1992 (1992-10-20) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002013994A1 (fr) * 2000-08-17 2002-02-21 Sms Demag Aktiengesellschaft Dispositif de coulee continue de metaux, notamment d'acier
US6913065B2 (en) 2000-08-17 2005-07-05 Sms Demag Ag Device for continuously casting metals, especially steel
WO2009118222A1 (fr) * 2008-03-28 2009-10-01 Siemens Vai Metals Technologies Gmbh & Co Segment de guidage de barre coulée
AT506824B1 (de) * 2008-05-26 2013-01-15 Siemens Vai Metals Tech Gmbh Mehrstrang-stranggiessanlage

Also Published As

Publication number Publication date
JPH11314143A (ja) 1999-11-16
DE59912592D1 (de) 2006-02-09
EP0941787B1 (fr) 2005-09-28
ATE305348T1 (de) 2005-10-15

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