EP0434488A1 - Vorrichtung zum Giessen von dünnen Metallbändern zwischen zwei drehenden und gleichlaufenden Walzen oder auf einer einzelnen Walze - Google Patents

Vorrichtung zum Giessen von dünnen Metallbändern zwischen zwei drehenden und gleichlaufenden Walzen oder auf einer einzelnen Walze Download PDF

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Publication number
EP0434488A1
EP0434488A1 EP90403401A EP90403401A EP0434488A1 EP 0434488 A1 EP0434488 A1 EP 0434488A1 EP 90403401 A EP90403401 A EP 90403401A EP 90403401 A EP90403401 A EP 90403401A EP 0434488 A1 EP0434488 A1 EP 0434488A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
cylinders
casting
speed
rotating
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.)
Withdrawn
Application number
EP90403401A
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English (en)
French (fr)
Inventor
Philippe Blin
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.)
USINOR SA
Original Assignee
USINOR Sacilor SA
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 USINOR Sacilor SA filed Critical USINOR Sacilor SA
Publication of EP0434488A1 publication Critical patent/EP0434488A1/de
Withdrawn legal-status Critical Current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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • 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
    • B22D11/0648—Casting surfaces
    • B22D11/0651—Casting wheels

Definitions

  • the subject of the present invention is a device for casting thin strips of metal, in particular steel, on a cylinder, or between two cooled parallel cylinders, rotating around their horizontal axis in opposite directions and placed at a short distance from one of the 'other so as to define between them a casting space.
  • the invention therefore aims to provide a casting device of the above type, which is arranged to solve the problem posed satisfactorily.
  • the device for casting thin strips of metal is characterized in that on the surface of each cylinder, parallel grooves are formed, inclined on the axis of the cylinder and joining in a transverse plane of the latter, so as to form a series of chevrons on the surface of the cylinder, the two streaks of each chevron converging downwards in the direction of extraction of the casting strip when they are turned towards the side of the casting space.
  • the inclination of the ridges being suitably chosen according to the characteristics of the device, and the withdrawal of the metal at its solidification being effected from the two ends of the cylinder towards the center of it, it is understood that it favors a sliding of the skin of solidified metal, towards the axially median plane of the cylinder, which prevents the formation of cracks.
  • the device is completed by a cage disposed under the cylinders and comprising a pair of strip extraction cylinders, which rotate at a speed slightly higher than the speed of rotation of the cylinders between which the liquid metal is poured.
  • the angle of inclination of the ridges on the horizontal and the amplitude of the overspeed of the cage extractor cylinders relative to the casting cylinders are suitably adjusted, thanks to the use of a crack detection system.
  • the persistence of longitudinal cracks means that the overspeed is insufficient
  • the formation of transverse cracks means that the overspeed is too high and that the web tension is therefore too strong.
  • Figure 1 is a schematic front elevational view of a device for casting thin strips of metal between two cylinders, equipped with an extraction cage in accordance with the preferred embodiment of the invention.
  • FIG. 2 is a view in longitudinal elevation of one of the cylinders of the device of FIG. 1 and streaks formed on its surface according to the invention.
  • the device shown in the drawings is intended for the casting of a thin strip 1 of steel, between two cylinders 2 and 3 energetically cooled, rotating in opposite directions, parallel and arranged horizontally. These cylinders are slightly spaced from each other so as to provide between them a pouring space 4 which can receive a bath of liquid metal from the top, and let it come out from the bottom after solidification of the metal in contact with the cold walls. cylinders, under the effect of their rotation.
  • the cylinders 2, 3 are rotated about their axis XX and internally cooled by well known means and not shown.
  • the casting space between them is supplied with liquid metal, for example by a nozzle 9 mounted on the bottom of a distributor, not shown, placed above.
  • each cylinder 2, 3 On the surface of each cylinder 2, 3 is formed a knurling formed by two series of parallel ridges 5 and 6, inclined on the axis XX of the cylinder and meeting at the center of the latter, in its median transverse plane M, so to form a series of rafters over the entire surface of the cylinder.
  • a first series of 5 parallel streaks between them is thus arranged on one half of each cylinder 2, 3 from one of its front faces, and the second half of ridges 6 parallel to each other is formed on the second half of the cylinder, from the other front face.
  • the streaks 5 and 6 have the same inclination A on the axis XX, each pair of streaks 5 and 6 forming a chevron whose two streaks converge downward in the direction of extraction of the product 1 identified by the arrow 10, when 'they are turned towards the casting space 4.
  • the depth of the ridges and their inclination A are suitably chosen as a function of the other parameters of the device.
  • the angle A can be of the order of 45 °, and the depth of the ridges can be a hundred microns, or even more.
  • the device is completed by a cage 7 placed under the casting cylinders 2, 3 and comprising a pair of cylinders 8 for extracting the strip 1 which is therefore pinched between these two cylinders 8.
  • the latter are rotated by means known per se and not shown, and rotate at a speed slightly higher than the speed of rotation of the casting rolls 2 and 3.
  • the magnitude of this "overspeed" of a few percent of the extractor rolls 8, as well as the angle tilt A streaks 5, 6 on the horizontal, can be adjusted using a crack detector, as indicated above.
  • the speed of rotation of the cylinders 8 is increased if the presence of longitudinal cracks is observed, and on the contrary it is decreased if we observe transverse cracks.
  • the invention is applicable to the case where the casting device comprises only one cylinder, the liquid metal being poured onto the cylinder from a container placed laterally thereon.
  • the invention also applies in the case where the cylinders are striated over only a portion of their width, for example the central part.
EP90403401A 1989-12-20 1990-11-29 Vorrichtung zum Giessen von dünnen Metallbändern zwischen zwei drehenden und gleichlaufenden Walzen oder auf einer einzelnen Walze Withdrawn EP0434488A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916915A FR2655893B1 (fr) 1989-12-20 1989-12-20 Dispositif de coulee de bandes minces de metal entre deux cylindres rotatifs et paralleles ou sur un seul cylindre.
FR8916915 1989-12-20

Publications (1)

Publication Number Publication Date
EP0434488A1 true EP0434488A1 (de) 1991-06-26

Family

ID=9388770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403401A Withdrawn EP0434488A1 (de) 1989-12-20 1990-11-29 Vorrichtung zum Giessen von dünnen Metallbändern zwischen zwei drehenden und gleichlaufenden Walzen oder auf einer einzelnen Walze

Country Status (19)

Country Link
US (1) US5082046A (de)
EP (1) EP0434488A1 (de)
JP (1) JPH04270033A (de)
KR (1) KR910011363A (de)
CN (1) CN1054550A (de)
AU (1) AU631952B2 (de)
BR (1) BR9006469A (de)
CA (1) CA2031338A1 (de)
CS (1) CS589090A3 (de)
FI (1) FI906276A (de)
FR (1) FR2655893B1 (de)
HU (1) HU206287B (de)
IE (1) IE904331A1 (de)
NO (1) NO905426L (de)
PL (1) PL288203A1 (de)
PT (1) PT96200A (de)
RU (1) RU1838034C (de)
YU (1) YU239090A (de)
ZA (1) ZA9010214B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0740972A1 (de) * 1995-05-05 1996-11-06 Ishikawajima-Harima Heavy Industries Co., Ltd. Verfahren und Vorrichtung zum Giessen von Stahlbändern

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995013889A1 (en) * 1993-11-18 1995-05-26 Bhp Steel (Jla) Pty Ltd Casting stainless steel strip on surface with specified roughness
AU2008100847A4 (en) * 2007-10-12 2008-10-09 Bluescope Steel Limited Method of forming textured casting rolls with diamond engraving
JP7056400B2 (ja) * 2018-06-18 2022-04-19 日本製鉄株式会社 冷却ロール、双ロール式連続鋳造装置、及び、薄肉鋳片の製造方法
CN112088845B (zh) * 2020-09-03 2022-08-19 张万容 一种自动下料式铅皮制作设备

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229031A2 (de) * 1986-01-09 1987-07-15 Ribbon Technology Corporation Texturiertes Substrat und Verfahren für das Direkt-Stranggiessen von Metallblech mit einer verbesserten Gleichmässigkeit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309585A (en) * 1941-02-12 1943-01-26 Daniel T Haddock Apparatus for making terne sheets or plates
CA1181558A (en) * 1982-04-08 1985-01-29 Takashi Onoyama Apparatus for producing flake particles
JPS60257954A (ja) * 1984-06-06 1985-12-19 Ishikawajima Harima Heavy Ind Co Ltd 鋼板の連続鋳造装置
KR910004078B1 (ko) * 1987-08-31 1991-06-22 미쯔비시마테리알 가부시기가이샤 주형부재 및 급냉응고용 수냉회전로울러부재

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229031A2 (de) * 1986-01-09 1987-07-15 Ribbon Technology Corporation Texturiertes Substrat und Verfahren für das Direkt-Stranggiessen von Metallblech mit einer verbesserten Gleichmässigkeit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 134 (M-479)(2191), 17 mai 1986; & JP - A - 60257954 (ISHIKAWAJIMA) 19.12.1985 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0740972A1 (de) * 1995-05-05 1996-11-06 Ishikawajima-Harima Heavy Industries Co., Ltd. Verfahren und Vorrichtung zum Giessen von Stahlbändern
CN1063368C (zh) * 1995-05-05 2001-03-21 石川岛播磨重工业株式会社 带钢连铸的方法及装置

Also Published As

Publication number Publication date
HU908273D0 (en) 1991-06-28
FR2655893A1 (fr) 1991-06-21
CN1054550A (zh) 1991-09-18
PT96200A (pt) 1992-09-30
YU239090A (sh) 1993-11-16
FI906276A (fi) 1991-06-21
AU631952B2 (en) 1992-12-10
RU1838034C (ru) 1993-08-30
AU6827290A (en) 1992-07-02
HUT56015A (en) 1991-07-29
FR2655893B1 (fr) 1992-04-17
ZA9010214B (en) 1992-07-29
NO905426L (no) 1991-06-21
FI906276A0 (fi) 1990-12-19
PL288203A1 (en) 1991-09-09
CA2031338A1 (fr) 1991-06-21
JPH04270033A (ja) 1992-09-25
NO905426D0 (no) 1990-12-17
HU206287B (en) 1992-10-28
IE904331A1 (en) 1991-07-03
CS589090A3 (en) 1992-03-18
KR910011363A (ko) 1991-08-07
BR9006469A (pt) 1991-10-01
US5082046A (en) 1992-01-21

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