EP0330646A1 - Procédé pour la coulée continue d'un feuillard mince ou d'une bramme mince et installation pour la mise en oeuvre du procédé - Google Patents

Procédé pour la coulée continue d'un feuillard mince ou d'une bramme mince et installation pour la mise en oeuvre du procédé Download PDF

Info

Publication number
EP0330646A1
EP0330646A1 EP89890013A EP89890013A EP0330646A1 EP 0330646 A1 EP0330646 A1 EP 0330646A1 EP 89890013 A EP89890013 A EP 89890013A EP 89890013 A EP89890013 A EP 89890013A EP 0330646 A1 EP0330646 A1 EP 0330646A1
Authority
EP
European Patent Office
Prior art keywords
casting
drum
casting drum
drums
pouring
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
EP89890013A
Other languages
German (de)
English (en)
Other versions
EP0330646B1 (fr
Inventor
Hermann Rametsteiner
Karl Dr. Schwaha
Franz Dipl.-Ing. Hirschmanner
Heinz Dipl.-Ing. Bramerdorfer
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
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 Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP0330646A1 publication Critical patent/EP0330646A1/fr
Application granted granted Critical
Publication of EP0330646B1 publication Critical patent/EP0330646B1/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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels

Definitions

  • the invention relates to a method for the continuous casting of a thin strip or a thin slab, in particular made of steel in a thickness between 1 and 20 mm, by pouring molten metal onto a drum surface of a first casting drum, forming a casting gap by means of a drum surface with the thickness of the
  • the second casting drum is arranged at a distance from the first casting drum, with strand shells being formed on the drum surfaces of the first and second casting drums by contact with the molten metal and formation of a sump between the two goat drums, and conveying them on the drum surfaces of the two Strand shells forming casting drums by rotating the first and second casting drums, and a device for carrying out the method with two casting drums delimiting a casting gap, a support frame which can be pivoted about the axis of a first casting drum by means of a pivoting device and in which the second casting drum is rotatably mounted, - a vessel which can be adjusted to the first casting drum with a pouring spout and -
  • AT-B - 331.435 describes how to apply melt to a rotating casting drum.
  • a complete solidification of the metal strip on the upwardly moving part of the casting drum must occur immediately after contact with the surface of the casting drum.
  • only extremely thin strips of aluminum can be produced. The thickness of the strips largely depends on the depth of the melt pool at the transition point to the drum surface.
  • the invention aims to avoid these disadvantages and has as its object to provide a method and an apparatus for carrying out the method of the types described in the introduction, which produce a strip in a thickness between 1 and 20 mm with high operational reliability for different metal or Allow steel qualities and different strip thicknesses, the strip being exactly the desired thickness.
  • This object is achieved in that the sump is formed at a distance from the pouring of the molten metal onto the drum surface of the first casting drum, between the sump and the pouring on the drum surface of the first casting drum, a strand shell of a predetermined thickness is formed and that the casting gap on the circumference the first casting drum is brought into a position in which the maximum length of the two strand shells formed on the drum surfaces corresponds in total to at least the thickness of the cast strip or slab.
  • a device of the type described at the outset for carrying out the method is characterized in that the pouring spout rests on the peripheral side of the first casting drum facing away from the second casting drum.
  • the mounting of the second casting drum in the support frame can advantageously be moved in the direction of and in the direction from the mounting of the first casting drum by means of an adjusting device.
  • the pivoting device expediently comprises a screw spindle acting on the support frame.
  • a preferred embodiment is characterized in that the pivoting device comprises an elastically deformable traction means which is fastened to the support frame at a distance from the axis of the first casting drum and which can be actuated by means of a pressure medium cylinder.
  • the pouring spout is expediently equipped with an overflow weir and the level of the melt level in the vessel can be adjusted with respect to the overflow weir.
  • the limiting devices are each advantageously formed by a plate that can be pressed laterally onto the end faces of the casting drums by means of an adjusting device.
  • the limiting devices are each formed by an endless belt that can be pressed against the end faces of the casting drums by means of a pressure plate, the limiting devices advantageously being provided with cooling.
  • At least one delimiting device is formed by a plate which is adapted to the drum surfaces of the casting drums and can be displaced along the latter by means of an actuating device.
  • the support frame can preferably be pivoted from the horizontal by approximately 80 ° while the casting gap is moved into a position inclined at approximately 80 °.
  • an inductor is expediently arranged between the pouring spout and the apex of the first casting drum or an inductor is arranged between the apex of the first casting drum and the casting gap.
  • FIG. 1 shows a schematically illustrated side view of a continuous casting plant
  • Fig. 2 shows a partially sectioned view in the direction of arrow II of Fig. 1.
  • 3 shows a detail of FIG. 1.
  • the continuous casting installation has a first casting drum 1, which is provided with an internal cooling system (not shown), which is rotatably mounted about a horizontal axis 2 and can be driven in the direction of arrow 4 by means of a drive 3.
  • the axis 2 is supported on the casting platform 5 by means of support rollers 6 rotatably mounted on the casting platform 5.
  • a support frame 10 engages on each of the two end faces 8, 9 of the first casting drum 1 and can be pivoted about the axis 2 of the first casting drum 1 by means of bearings 11.
  • the support frame 10 has on each end face 8, 9 of the first casting drum 1 lying and radially extending from the axis 2 of the first casting drum 1 frame 12, each in a disc-shaped end piece 13, which is arranged concentrically to the first casting drum 1 and which rests on two of the support rollers 6, pass over.
  • the frame 12 are rigidly connected to each other to the support frame 10 by means of cross members 12 '.
  • a flexible traction means acts on the outside, for example a band 14 or a rope, which is guided over a deflection roller 15 rotatably mounted on the casting platform 5 and is attached at its end to a piston rod 16 of a pressure medium cylinder 17.
  • the pressure medium cylinder 17 is articulated on the casting platform 5. When this pressure medium cylinder 17 is acted upon, the support frame 10 with the frame 12 can thus be pivoted about the axis 2 of the first casting drum 1 into the position shown in broken lines in FIG. 1.
  • a threaded spindle 18 is provided for each frame 12, which engages the frame 12 with one end.
  • a nut 19 which is articulated on the casting platform 5 and is penetrated by the threaded spindle 18 serves to be driven by means of a worm drive 20.
  • the frames 12 of the support frames 10 each hold a bearing 21 of a second casting drum 22, these bearings 21 being displaceable in the direction of the first casting drum 1 or in the opposite direction by means of pressure medium cylinders 23, which are each supported on the end crosshead 24 of the frame 12. This makes it possible to set a casting gap 25 of a predetermined size between the two casting drums 1 and 22.
  • a pouring spout 27 just below the apex 26 of a distributor 28 adjustable.
  • a dip pipe 29 of a pouring ladle 30 positioned above the distributor 28 opens into the distributor 28.
  • the distributor 28 and the pouring spout 27 are lined with refractory material 31.
  • the pouring spout 27 is equipped with an overflow weir 32.
  • the level 33 of the molten metal 34 poured into the distributor 28 lies at the height 35 of the overflow weir 32, so that a thin film 36 of molten metal 34 flows over the overflow weir 32 onto the drum surface 7 of the first casting drum 1.
  • a part of the molten metal solidifies on the casting drum 1, a strand shell 37 becoming increasingly thicker over the circumference of the casting drum.
  • a part of the still molten metal melt flows into the casting gap 25 formed by the two casting drums 1 and 22, where it forms a liquid sump 38 as a result of material jams.
  • a strand shell 39 likewise forms on the drum surface of the second casting drum 22 and is moved by means of a drive 40 to the casting gap 25 by rotating the second casting drum 22 in the opposite direction of rotation to the first casting drum 1 and the same or slightly different peripheral speed.
  • the casting gap 25 corresponds in its thickness 41 to the thickness 42 of the strip 43 drawn off.
  • the position of the casting gap 25 and the cooling of the casting drums are chosen such that the thicknesses 44, 45 are the same the casting drums 1 and 22 formed strand shells 37, 39 at the location of the casting gap 25 correspond in total to at least the thickness 42 of the strip 43 drawn off. This ensures that there is no longer any liquid core within the strip 43 which has been drawn off and that the strip 43 is supported after it has been removed from the casting drums 1 and 22 is only necessary for its management.
  • a lateral delimitation of the casting gap 25 can, as illustrated in FIG. 2 on the left half of the figure, be realized by a plate 46, optionally cooled, which can be pressed onto the end faces of the casting drums 1 and 22 in the region of the casting gap 25 and which are each on one end face of both casting drums 1 and 22 abrasive.
  • a pressure cylinder 47 for pressing the plate 46 against the end faces is articulated to the frame 12 of the support frame 10.
  • An embodiment shown in the right half of the figure in FIG. 2 for the lateral limitation of the casting gap has a continuous endless belt 48 which is pressed against the end faces of the casting drums 1 and 22 with a pressure plate 49 in the area of the casting gap 25.
  • the belt 48 rotates at approximately the circumferential speed of the casting drums 1 and 22. This avoids excessive grinding between the end faces of the casting drums 1 and 22 and the limiting device.
  • a cooling device 50 for the strip is shown schematically in FIG. 2.
  • the idler rollers 51 of the belt 48 are attached to the frame 12 of the support frame 10.
  • the position of the support frame 10 or its frame 12 is adjusted so that the thicknesses of the strand shells 37, 39 formed on the surfaces of the casting drums in the casting gap 25 total at least the thickness 42 of the finished strip 43 correspond.
  • the frames 12, as illustrated by dash-dotted lines in FIG. 1 can be inclined with their longitudinal axis 52 by approximately 80 ° with respect to the horizontal, ie The plane of connection of the axes of the two casting drums 1 and 22 can be moved from the horizontal plane to an approximately 80 ° inclined position.
  • inductors 53 can be arranged inside the first casting drum 1, which are then expediently provided in a stationary manner and depending on the length over which the liquid Metal melt 34 extends over the surface of the first casting drum, can be put into operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP89890013A 1988-01-26 1989-01-19 Procédé pour la coulée continue d'un feuillard mince ou d'une bramme mince et installation pour la mise en oeuvre du procédé Expired - Lifetime EP0330646B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3802202 1988-01-26
DE3802202A DE3802202A1 (de) 1988-01-26 1988-01-26 Verfahren zum stranggiessen eines duennen bandes oder einer duennen bramme sowie vorrichtung zur durchfuehrung des verfahrens

Publications (2)

Publication Number Publication Date
EP0330646A1 true EP0330646A1 (fr) 1989-08-30
EP0330646B1 EP0330646B1 (fr) 1990-10-31

Family

ID=6345995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89890013A Expired - Lifetime EP0330646B1 (fr) 1988-01-26 1989-01-19 Procédé pour la coulée continue d'un feuillard mince ou d'une bramme mince et installation pour la mise en oeuvre du procédé

Country Status (6)

Country Link
US (2) US4960164A (fr)
EP (1) EP0330646B1 (fr)
JP (1) JP2930597B2 (fr)
DE (1) DE3802202A1 (fr)
ES (1) ES2019139B3 (fr)
GR (1) GR3001402T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397478B (de) * 1991-10-03 1994-04-25 Voest Alpine Stahl Verfahren und vorrichtung zum stranggiessen eines dünnen bandes oder einer dünnen bramme

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1290603B1 (it) * 1997-05-02 1998-12-10 Voest Alpine Ind Anlagen Cilindro di colata
CN100400198C (zh) * 2003-08-07 2008-07-09 李华伦 镁薄板带材双辊高速连铸生产线
CN1647870B (zh) * 2004-01-20 2010-04-14 李华伦 金属薄板双辊异步铸轧机
US20080088065A1 (en) * 2006-10-12 2008-04-17 Fujifilm Corporation Cellulose resin film, method for producing the same and film product thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693012A (en) * 1950-09-08 1954-11-02 Gen Motors Corp Method and apparatus for manufacturing sheet material
US3817317A (en) * 1972-07-20 1974-06-18 Collins S Four-high roll casting machine
EP0154250A2 (fr) * 1984-03-01 1985-09-11 Concast Service Union Ag Procédé et dispositif pour la coulée continue des métaux entre deux tambours refroidis à axes parallèles
DE3725010C1 (de) * 1987-07-29 1988-09-29 Krupp Stahl Ag Verfahren zum Herstellen duenner Metallbaender

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450428A (en) * 1944-03-23 1948-10-05 Clarence W Hazelett Strip forming apparatus
AT331435B (de) * 1972-05-18 1976-08-25 Alcan Res & Dev Verfahren zur herstellung von gegossenen metallstreifen
YU43229B (en) * 1980-05-09 1989-06-30 Battelle Development Corp Device for continuous band casting
JPS58209451A (ja) * 1982-05-31 1983-12-06 Mitsubishi Heavy Ind Ltd 薄板の連続鋳造方法
JPS5997743A (ja) * 1982-11-26 1984-06-05 Furukawa Battery Co Ltd:The 鉛蓄電池用格子基板の製造方法
JPS61229445A (ja) * 1985-04-03 1986-10-13 Ishikawajima Harima Heavy Ind Co Ltd 連続鋳造方法及び装置
JPS61253149A (ja) * 1985-04-12 1986-11-11 Nippon Kinzoku Kogyo Kk 金属薄板の連続鋳造による製造装置
JPS6238745A (ja) * 1985-08-13 1987-02-19 Nippon Yakin Kogyo Co Ltd 金属薄板の直接製造装置
JPS63101056A (ja) * 1986-10-17 1988-05-06 Kawasaki Steel Corp 急冷金属薄帯の製造方法および装置
DE3721510A1 (de) * 1987-06-30 1989-01-19 Fink Gerdinand Vorrichtung und verfahren zum bandgiessen von stahl

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693012A (en) * 1950-09-08 1954-11-02 Gen Motors Corp Method and apparatus for manufacturing sheet material
US3817317A (en) * 1972-07-20 1974-06-18 Collins S Four-high roll casting machine
EP0154250A2 (fr) * 1984-03-01 1985-09-11 Concast Service Union Ag Procédé et dispositif pour la coulée continue des métaux entre deux tambours refroidis à axes parallèles
DE3725010C1 (de) * 1987-07-29 1988-09-29 Krupp Stahl Ag Verfahren zum Herstellen duenner Metallbaender

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 100 (M-470)[2157], 16. April 1986; & JP-A-60 234 744 (ISHIKAWAJIMA HARIMA JUKOGYO K.K.) 21-11-1985 *
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 81 (M-465)[2138], 29. März 1986; & JP-A-60 221 155 (ISHIKAWAJIMA HARIMA JUKOGYO K.K.) 05-11-1985 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 264 (M-423)[1987], 22. Oktober 1985; & JP-A-60 111 743 (MITSUBISHI JUKOGYO K.K.) 18-06-1985 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397478B (de) * 1991-10-03 1994-04-25 Voest Alpine Stahl Verfahren und vorrichtung zum stranggiessen eines dünnen bandes oder einer dünnen bramme

Also Published As

Publication number Publication date
ES2019139B3 (es) 1991-06-01
JP2930597B2 (ja) 1999-08-03
US5035279A (en) 1991-07-30
EP0330646B1 (fr) 1990-10-31
GR3001402T3 (en) 1992-09-25
DE3802202A1 (de) 1989-08-03
JPH01224146A (ja) 1989-09-07
US4960164A (en) 1990-10-02
DE3802202C2 (fr) 1992-11-12

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