EP0694356B1 - Procédé et dispositif de correction de l'ovalisation de cylindres de coulée continue de bande métallique - Google Patents

Procédé et dispositif de correction de l'ovalisation de cylindres de coulée continue de bande métallique Download PDF

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Publication number
EP0694356B1
EP0694356B1 EP95420218A EP95420218A EP0694356B1 EP 0694356 B1 EP0694356 B1 EP 0694356B1 EP 95420218 A EP95420218 A EP 95420218A EP 95420218 A EP95420218 A EP 95420218A EP 0694356 B1 EP0694356 B1 EP 0694356B1
Authority
EP
European Patent Office
Prior art keywords
fluid
cooling
roll body
port
discharge
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 - Lifetime
Application number
EP95420218A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0694356A1 (fr
Inventor
Jacques Charpentier
Marcel Cortes
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.)
Constellium Issoire SAS
Original Assignee
Pechiney Rhenalu SAS
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 Pechiney Rhenalu SAS filed Critical Pechiney Rhenalu SAS
Publication of EP0694356A1 publication Critical patent/EP0694356A1/fr
Application granted granted Critical
Publication of EP0694356B1 publication Critical patent/EP0694356B1/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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
    • 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
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/08—Lubricating, cooling or heating rolls internally

Definitions

  • the invention relates to a method and a device for correcting thermal ovalization (or runout) appearing on cylinders continuous metal strip casting.
  • a continuous metal strip casting machine generally contains two identical cylinders located face to face, separated by a space of the thickness of the metal strip to be produced and turning in the opposite direction one of the other.
  • the liquid metal is fed on one side of the space while the strip comes out on the other side at its nominal thickness.
  • Figures 1 (longitudinal section) and 2 (cross section) give the general structure of a cylinder.
  • Cooling is usually carried out using a cooling (generally water) circulating in at least one circuit inside the cylinder body (1).
  • a cooling generally water
  • This circuit includes at least one cold water supply hole (3), under shape of a tube drilled in the cylinder body (1), parallel to its axis, opening to the outside by one of its ends, the other being closed, and extending to the right of the hoop (2) over its entire width.
  • a plurality of smaller diameter tubes (4) connect each hole supply (3) to a distribution manifold (5) sort of groove located under the hoop (2) and substantially parallel to the supply tube (3); each collector supplies water to a cooling device proper comprising a network of small channels (5) machined to the peripheral surface of the cylinder body (1) and located under the hoop in a transverse plane; the water circulates there and comes into thermal contact with the hoop and ensures its cooling.
  • the water After the water has heated up, it is removed using a identical to the power supply. It includes (see part low of fig. 1 and fig. 2) a water drain collector (7) hot, a plurality of small diameter tubes (8) connecting it to the tube evacuation (9).
  • a cylinder body has two or three or four water supply circuits and as many drainage circuits interconnected by the channels (6) of the cooling device.
  • the reciprocal arrangement of the cold and hot water circuits is good visible in particular in fig. 2 which represents the case of 2 circuits. We see their interconnection and their alternate and offset arrangement one relative to the other by 90 °. The arrows illustrate the meaning of water circulation. In the case of three or four circuits, the offset is 60 ° or 45 °
  • the cold water arriving in one of the distribution collectors (5) is then distributed in the cooling channels (6) located on the on the other side of the collector (5), heats up and is evacuated by the collectors (7) which thus collect water from two collectors distribution (5) located on either side.
  • a cooling device of this type is described in the patent FR-A-2 217 098. It shows a cylinder comprising a core (1) surrounded a hoop (7), the whole being cooled by a circulation of water in channels (2, 3, 4, 6) formed in said core (1) and opening into grooves (5) located at the core-hoop interface.
  • the Applicant has sought a method and a device aimed at reducing temperature differences in the cylinder which is effective and easy to carry out or to implement and inexpensive.
  • the invention is a method of cooling continuous rolls of metal strip using a fluid
  • said metal cylinders comprising a cylinder body and a metallic hoop consisting essentially of a tube or an envelope metallic, the inner face of which surrounds said body, the other face used to receive liquid metal and to produce the strip by cooperation of two cylinders, said cylinder body comprising at minus a cooling circuit leading to the outside of the body cylinder by two inlet / outlet ends and comprising at least one cold fluid supply device (usually water), a actual cooling device where the fluid is in contact thermal with the underside of the hoop and a device evacuation of the heated fluid in contact with the hoop, characterized in which we periodically reverse the direction of circulation of the fluid in the cylinder body, the cold fluid supply device becoming the hot fluid evacuation device and vice versa.
  • the invention is particularly suitable for cylinders having the configuration described above using fig. 1 and 2, their body of cylinder with two or three or four feed devices cold water alternated with as many hot water evacuation devices, these devices being offset by 90 ° (two devices), by 60 ° (three devices) or 45 ° (four devices) and connected by a device proper cooling.
  • Continuous strip casting generally takes place between two cylinders identical, reversing the direction of the coolant according to the invention is advantageously practiced on the two cylinders. Such a process is also applicable to casting on a single cylinder by example, film casting.
  • the process according to the invention is particularly advantageous when one runs thin strips for example from 1 to 12 mm thick, or even more thin, specifically in the usual range of thickness from 5 to 12 mm where the process is very efficient, or even in the area of the weak thicknesses for example from 1 to 5 mm for which a cylinder runout is all the more harmful as the thickness is low. It is particularly suitable for casting aluminum strip or its alloys.
  • the frequency of reversing the direction of water circulation must be set in depending on the characteristics of the installation, for example diameter of cylinders, coolant flow etc ...
  • the method according to the invention has been applied to a 8 mm thick aluminum strip continuous casting installation, on cylinders with an outside diameter of 96 cm, the hoop of which had a 8 cm thick, and having an internal cooling circuit identical to that given in fig. 1 and 2.
  • the buffer tank can receive the hot fluid if it is large sufficient to cool it or if it has a autonomous cooling device.
  • valve V is assigned to supply the cylinder with cold fluid
  • valve W is assigned to the evacuation of the fluid warmed up.
  • the simultaneous operation of the three-way valves makes it possible to reverse the direction of circulation of the fluid in the cylinder without modifying the circuit fluid from the pump and discharge to the basin.
  • maneuvers can advantageously be automated or managed by microprocessor, computer ... etc ...
  • the casting machine has two cylinders (upper and lower)
  • the hot fluid evacuation circuit can be connected to said second cylinder in diversion on track V3 or W2 of the valves respective V and W which already collect the hot fluid from the first cylinder.
  • FIG. 3 illustrates a device according to the invention for a casting machine comprising two cylinders: C (upper cylinder), D (lower cylinder).
  • C1, C2 and D1, D2 represent the input / output ends, interchangeable during the reversal of direction of the fluid, of the fluid cooling circuit located inside each of the cylinders C and D respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)
EP95420218A 1994-07-29 1995-07-26 Procédé et dispositif de correction de l'ovalisation de cylindres de coulée continue de bande métallique Expired - Lifetime EP0694356B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409667A FR2723014B1 (fr) 1994-07-29 1994-07-29 Procede et dispositif de correction de l'ovalisation de cylindres de coulee continue de bande metallique
FR9409667 1994-07-29

Publications (2)

Publication Number Publication Date
EP0694356A1 EP0694356A1 (fr) 1996-01-31
EP0694356B1 true EP0694356B1 (fr) 2000-03-01

Family

ID=9466065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95420218A Expired - Lifetime EP0694356B1 (fr) 1994-07-29 1995-07-26 Procédé et dispositif de correction de l'ovalisation de cylindres de coulée continue de bande métallique

Country Status (13)

Country Link
US (1) US5642772A (enrdf_load_stackoverflow)
EP (1) EP0694356B1 (enrdf_load_stackoverflow)
JP (1) JPH0857598A (enrdf_load_stackoverflow)
KR (1) KR100200984B1 (enrdf_load_stackoverflow)
AT (1) ATE189982T1 (enrdf_load_stackoverflow)
BR (1) BR9503511A (enrdf_load_stackoverflow)
CZ (1) CZ290735B6 (enrdf_load_stackoverflow)
DE (1) DE69515225T2 (enrdf_load_stackoverflow)
FR (1) FR2723014B1 (enrdf_load_stackoverflow)
MY (1) MY113719A (enrdf_load_stackoverflow)
NO (1) NO310396B1 (enrdf_load_stackoverflow)
RU (1) RU2138362C1 (enrdf_load_stackoverflow)
TW (1) TW282426B (enrdf_load_stackoverflow)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO188696A0 (en) * 1996-08-27 1996-09-19 Bhp Steel (Jla) Pty Limited Twin roll casting
FR2763602B1 (fr) * 1997-05-20 1999-07-09 Pechiney Rhenalu Procede de fabrication de bandes en alliages d'aluminium par coulee continue mince entre cylindres
AUPO832897A0 (en) * 1997-07-30 1997-08-28 Bhp Steel (Jla) Pty Limited Twin roll casting
FR2799399B1 (fr) * 1999-10-06 2002-02-08 Pechiney Rhenalu Cylindre de coulee continue de bande metallique comprenant un circuit de refroidissement
US6435258B1 (en) * 2000-04-26 2002-08-20 Honda Giken Kogyo Kabushiki Kaisha Method and apparatus for cooling mold
US6374903B1 (en) * 2000-09-11 2002-04-23 Ag Industries, Inc. System and process for optimizing cooling in continuous casting mold
FR2832497B1 (fr) 2001-11-19 2004-05-07 Pechiney Rhenalu Bandes en alliage d'aluminium pour echangeurs thermiques
RU2226447C2 (ru) * 2002-05-27 2004-04-10 Закрытое акционерное общество "Ново-Краматорский машиностроительный завод" Охлаждаемый ролик
JP2006231378A (ja) * 2005-02-25 2006-09-07 Katagi Aluminum Products Ltd 連続鋳造によるアルミニウム合金板の製造方法
EP1844880A1 (en) * 2006-04-12 2007-10-17 So & So Sommerhofer OEG Strip casting
US8607848B2 (en) * 2008-08-05 2013-12-17 Nucor Corporation Method for casting metal strip with dynamic crown control
ES2397725B1 (es) * 2010-03-23 2014-01-17 Inasa Foil, S.A. Sistema de refrigeración de rodillos laminadores.
AT509688B1 (de) * 2010-03-26 2012-02-15 Siemens Vai Metals Tech Gmbh Lager und dreheinführung für eine gekühlte rolle
US8505611B2 (en) 2011-06-10 2013-08-13 Castrip, Llc Twin roll continuous caster
DE102011055066A1 (de) * 2011-11-04 2013-05-08 Hydro Aluminium Rolled Products Gmbh Walze mit Kühlsystem
TWI635917B (zh) * 2013-06-10 2018-09-21 奧地利商百德福鋼帶公司 Heatable or chillable steering drum for belt casting equipment
CN104368605A (zh) * 2014-11-19 2015-02-25 辽宁科技大学 一种适用于铸轧薄宽板带的铸轧辊冷却水道
US20170144218A1 (en) * 2015-11-20 2017-05-25 Nucor Corporation Method for casting metal strip with crown control
CN105328146A (zh) * 2015-12-15 2016-02-17 西南铝业（集团）有限责任公司 一种合金铸造冷却水系统
DK3638437T3 (da) 2017-06-15 2022-06-27 Nucor Corp Metode til støbning af metalbånd med kantkontrol
RU2770927C1 (ru) * 2020-12-14 2022-04-25 Александр Алексеевич Семенов Устройство охлаждения для ролика непрерывного литья
RU2767120C1 (ru) * 2020-12-21 2022-03-16 Александр Алексеевич Семенов Охлаждаемый ролик машины непрерывного литья заготовок

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2217098A1 (en) * 1973-02-13 1974-09-06 Scal Gp Condit Aluminium Continuous casting appts of improved output capacity - by lining surfaces in contact with liq metal with a highly heat conductive material eg copper (alloys)
FR2587247B1 (fr) * 1985-09-17 1988-08-12 Siderurgie Fse Inst Rech Cylindre pour coulee continue entre cylindres, a circulation de fluide de refroidissement
JPS62168650A (ja) * 1986-01-20 1987-07-24 Daido Steel Co Ltd 連続鋳造機用ロ−ル
CH674166A5 (enrdf_load_stackoverflow) * 1986-12-22 1990-05-15 Lauener Eng Ag
SU1560376A1 (ru) * 1987-12-14 1990-04-30 Андроповский авиационный технологический институт Водоохлаждаемый ролик
GB9100151D0 (en) * 1991-01-04 1991-02-20 Davy Distington Ltd Strip caster roll
SE501633C2 (sv) * 1992-03-30 1995-04-03 Dalforsaan Ab Kyld stödrulle

Also Published As

Publication number Publication date
DE69515225T2 (de) 2000-08-10
KR100200984B1 (ko) 1999-06-15
BR9503511A (pt) 1996-07-30
NO310396B1 (no) 2001-07-02
DE69515225D1 (de) 2000-04-06
FR2723014B1 (fr) 1996-09-20
MY113719A (en) 2002-05-31
NO952681D0 (no) 1995-07-06
CZ290735B6 (cs) 2002-10-16
FR2723014A1 (fr) 1996-02-02
KR960003855A (ko) 1996-02-23
CZ195795A3 (en) 1996-02-14
EP0694356A1 (fr) 1996-01-31
RU2138362C1 (ru) 1999-09-27
JPH0857598A (ja) 1996-03-05
TW282426B (enrdf_load_stackoverflow) 1996-08-01
NO952681L (no) 1996-01-30
ATE189982T1 (de) 2000-03-15
US5642772A (en) 1997-07-01

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