WO2002034431A2 - Machine de coulee en bande pour couler des metaux liquides, en particulier de l'acier - Google Patents

Machine de coulee en bande pour couler des metaux liquides, en particulier de l'acier Download PDF

Info

Publication number
WO2002034431A2
WO2002034431A2 PCT/EP2001/011364 EP0111364W WO0234431A2 WO 2002034431 A2 WO2002034431 A2 WO 2002034431A2 EP 0111364 W EP0111364 W EP 0111364W WO 0234431 A2 WO0234431 A2 WO 0234431A2
Authority
WO
WIPO (PCT)
Prior art keywords
casting
machine according
casting machine
cassette
belt
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.)
Ceased
Application number
PCT/EP2001/011364
Other languages
German (de)
English (en)
Other versions
WO2002034431A3 (fr
Inventor
Günter FLEMMING
Hans Streubel
Heinrich Marti
Jacques Barbé
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.)
Main Management Inspiration AG
SMS Siemag AG
Original Assignee
Main Management Inspiration AG
SMS Demag 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 DE10102822A external-priority patent/DE10102822A1/de
Application filed by Main Management Inspiration AG, SMS Demag AG filed Critical Main Management Inspiration AG
Priority to AU2002221639A priority Critical patent/AU2002221639A1/en
Priority to AT01988635T priority patent/ATE268237T1/de
Priority to EP01988635A priority patent/EP1333947B1/fr
Priority to DE50102497T priority patent/DE50102497D1/de
Publication of WO2002034431A2 publication Critical patent/WO2002034431A2/fr
Publication of WO2002034431A3 publication Critical patent/WO2002034431A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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 strip casting machine for casting liquid metals, in particular steel, with two cooled casting rolls forming an inlet funnel, spaced parallel to one another and spaced apart by a strand thickness, which are rotatably mounted and can be driven in rotation and which, together with narrow side parts, limit the casting gap.
  • the object of the invention is to considerably shorten the changing times when changing worn casting rolls or when changing the format.
  • the object is achieved according to the invention in that the casting rollers are mounted in an adjustable manner in a frame-like cassette, and in that the cassette can be quickly replaced or exchanged in or out of the casting position. This can save considerable change time for the casting rolls.
  • the casting rolls are ready in cassettes and after removing a cassette with worn casting rolls, the "new" cassette can be reinserted without having to loosen the connections, connections and measuring sensors be aligned.
  • the hydraulic adjustment means and water connections are arranged on the fixed frame. This significantly increases the system usage time.
  • the adjustment to the casting strand can be obtained without further effort by arranging the cassette in a fixed frame in the casting position.
  • the bearing housings for the casting rolls are arranged within the cassette and are guided at least on one side. This ensures an exact position of the roller end faces to each other.
  • bearing housings of the respective casting roller are connected to one another by means of crossbeams. This feature also contributes to the precise determination of the position of the roller axis.
  • bearing housings of the respective casting roll are connected to one another by means of cross members.
  • roller jacket of the cast rollers is rotatably mounted on a fixed roller axis. This favors the arrangement of a rotary drive.
  • the drive can be advantageously designed in such a way that the casting rollers can each be driven in rotation by drive means. It is provided that the drive means consist of a ring torque motor.
  • Another improvement is that the drive motors for the casting rolls are arranged in the cassette. When the cassette is removed, the drive is also removed, so that only electrical connections need to be disconnected.
  • the removal and installation direction of the cassettes can vary.
  • the cassette can be exchanged in the horizontal and / or vertical direction.
  • the cassette can be replaced by means of a lifting device.
  • the overhead crane or another existing hoist can be used for this.
  • means are provided for moving the cassette.
  • the cassette can thus be moved back and forth on a predetermined path.
  • the procedure can be such that the cassette can be exchanged by means of the displacement means and / or the lifting device. Both means of transport together allow advantageous movements in order to remove or install the cassette.
  • the displacement means consist of outer hydraulic piston-cylinder units or of spindle lifting units.
  • the units can be selected according to the necessary displacement and the specified load.
  • the cassette After moving the cassette into the casting position, it is advantageous according to further features that the cassette can be fixed in the casting position in the fixed frame.
  • the necessary accuracy of the fixation can be achieved according to one embodiment in that the cassette can be fixed by means of bolts and bushings.
  • the cassette can be fixed in the stationary frame by means of stops.
  • the employment of at least one casting roll takes place via position-controlled hydraulic cylinders which are arranged in the stationary frame and act on one side on the bearing housing.
  • Pressurized hydraulic cylinders are arranged between the bearing housings, which are operatively connected to the position-controlled hydraulic cylinders and thus ensure play-free roller adjustment. This ensures that the required high setting accuracy is reproducibly achieved.
  • an operating window consists of the minimum and maximum values of the contact force, at least in the dependence of the casting width, the casting thickness and the steel quality for the position control in tabular form or as a function can be stored in a computer.
  • the further control takes place in such a way that the control can be switched from position control to pressure control outside the operating window.
  • the operating window can be set to the existing values by changing the casting thickness and / or the casting speed.
  • the piston-cylinder units arranged between the bearing housings for the casting rolls serve as pressure cylinders, e.g. can be used with a constant pressure on the piston side. This creates a constant force between the bearing housings, which has a favorable effect on the positioning accuracy of the casters and on the metal strip product.
  • a further development provides that the pressure in the pressure cylinder can be regulated as a function of the casting width and / or the casting thickness of the metal strip.
  • adjusting means are directed on one side against at least one bearing housing of the casting rolls.
  • positioning means form position-controlled piston-cylinder units.
  • load cells are arranged between the support surfaces in the stationary frame and the bearing housings of the casters which are not in use. This further improves the accuracy of the casting roll gap.
  • the positional accuracy of the casting rollers is ensured by the fact that the bearing housings of the casting rollers are supported against one another by means of piston-cylinder units.
  • Another improvement of the invention is that a water supply is provided for cooling the casting rolls, which is carried out via a water clamping plate.
  • the function of the water clamping plate can be improved further by the water clamping plate being tightly connected to the cassette by means of adjusting or clamping means.
  • Another development of the invention consists in that a narrow side plate which closes the casting rolls at the end of the casting area can be removed and reinstalled essentially perpendicular to the end plane of the casting rolls.
  • the casting rolls are always cooled by the roller jacket. It is advantageous here that the cooling water supply is connected via the end faces of the casting rolls.
  • the pressure in the outer adjusting means can be adjusted in a controlled manner as a function of a constant casting roll gap.
  • Fig. 1 is a plan view of the band casting machine with casting platform
  • FIG. 3 shows a section A-B according to FIG. 2,
  • Fig. 5 is a side view of the cassette like Fig. 2, but with two-sided
  • Fig. 6 is an axial longitudinal section through the casting roller
  • 6A shows a detail "C" from FIG. 6.
  • a band casting machine for casting liquid metal, in particular steel, to form a metal band 1 with the casting width 1 a is (FIG. 1) on a casting platform 2 and is operated from a ladle turret 3 with ladles 4 via a tundish 5 by a regulated one Spout 6 supplied with liquid steel.
  • the strip casting machine essentially consists of casting rolls 8a and 8b arranged in parallel on a strip thickness 7 of, for example, 1-6 mm, which are rotatably supported and can be driven in rotation and which, together with narrow side parts 9, form the casting roll gap 10.
  • the narrow side plates 9 are each pressed against the end faces 8d of the casting rolls 8a, 8b in a sealing manner by means of adjusting and tensioning means 32. 5, the adjustment plane 35 for the narrow-side sealing is visible.
  • the casting rolls 8a, 8b are rotatably supported in a frame-like cassette 11 and are set to one another on the casting roll gap 10 in the casting position 34.
  • the casting roller 8a is the fixed roller and the casting roller 8b is the adjustable casting roller.
  • the casting rollers 8a, 8b are adjustable with their casting roller traverses 15 in a stationary frame 12, arranged in the frame-like cassette 11 and easily expandable from the stationary frame 12. 1, the cassette 11 can be moved to the left (removal of a cassette 11 with used casting rolls 8a, 8b) and from the right (installation of another cassette 11 with new casting rolls 8a, 8b) out of the frame 12 or into the frame 12 the.
  • Bearing housings 13 are arranged in the cassette 11 within the cassette 11, a guide track 14 for the bearing housings 13 being present at least on one side (FIG. 3).
  • the bearing housings 13 of the respective casting rollers 8a, 8b are connected to one another by means of casting roller cross members 15.
  • the roller jacket 16 of the casting rollers 8a, 8b is in each case rotatably mounted on a fixed roller axis 17 (FIG. 6).
  • the casting rolls 8a, 8b are driven in rotation by means of a space-saving drive means 18, which can consist of a ring torque motor 18a.
  • the drive means 18 is on the fixed roller axis 17, e.g. supported on the bearing housing 13.
  • the cassette 11 can be replaced in the horizontal and / or vertical direction, i.e. removed and installed another cassette 11.
  • the cassette 11 can also be brought upwards by means of a lifting device (not shown), for example by means of a hall crane of the casting installation, and can be reinstalled in reverse.
  • the displacement means 19 for displacing the cassette 11 on one or more guideways is shown in FIG. 1.
  • the cassette 11 is moved from a waiting or transfer position 22 (FIG. 1) or vice versa.
  • the displacement means 19 are formed from outer piston-cylinder units 19a or from spindle lifting units 19b.
  • the casting rolls 8a, 8b are fixed in the casting position in the cassette 11.
  • bolts 23 and bushes 24 are provided in the fixed frame 12.
  • the bolts 23 are displaceable in the frame 12 and are pushed into the bushing 24 by means of displacement means 25 (FIG. 2).
  • the cassette 11 can also be fixed in the stationary frame 12 by means of stops.
  • the casting rolls 8a, 8b can also be set in the cassette 11.
  • Adjustment means 27 in the form of piston-cylinder units 27a serve for this purpose for at least one casting roller 8a, 8b. These adjustment means 27 can be secured on one side against the bearing housing 13 of the casting rolls 8a, 8b (FIG. 4).
  • the adjustment means 27 serve as cylinders 27b for pressing the roller cassette 11 off the load cells 28.
  • the load cells 28 are arranged on a stop side 33 in order to measure the casting roller forces.
  • Piston-cylinder units 30 are arranged between the bearing housings 13 of the casting rolls 8a, 8b. These piston-cylinder units 30 are pressure-controllable.
  • the narrow side parts 9 which close the casting rolls 8a, 8b at the casting gap 10 (in the pouring area 10a) are removed and reinstalled essentially vertically to the end plane 8c of the casting rolls 8a, 8b.
  • the narrow side parts 9, which close off the casting roll gap 10 can also be removed at an acute angle to the end plane 8c of the casting rolls 8a, 8b and be installed backwards in the same movement. In this case, the acute angle between the face plane 8c of the casting rolls 8a, 8b and the narrow side parts 9 between 1 9 and 40 s.
  • the narrow side parts 9 can also be removed perpendicularly to the plane 20 of the roller axes 17 from the end face 8d of the casting rollers 8a, 8b upwards or downwards and reinstalled in reverse.
  • the cooling water guide 31 runs e.g. over the end faces 8d of the casting rolls 8a, 8b.
  • a cooling water supply 31 which consists of a water clamping plate, is arranged.
  • the water clamping plate is tightly connected to the end face 8d of the casting roller 8a, 8b (FIG. 6).
  • the external adjustment means 27 are in operative connection with the piston-cylinder units 30 arranged between the bearing housings 13 (FIG. 5).
  • the piston-cylinder units 30 arranged between the bearing housings 13 for the casting rolls 8a, 8b work as pressure cylinders with a constant pressure on the piston side 30a.
  • the pressure in the pressure cylinder can be regulated as a function of the casting width 1a and / or the casting thickness 10 of the metal strip 1.
  • the pressure in the outer adjusting means 27, for example in piston-cylinder units 27a, which are provided in pairs on each strand side 29, is set in each case under a regulated pressure as a function of a constant casting roll gap 10. In the time period of the casting, that is before the end of the ramp, the casting rolls 8a, 8b are adjusted to the casting roll gap 10 in a pressure-controlled manner.
  • the pressure control is switched to position control. Furthermore, an operating window from the determined minimum and maximum values of the contact force of the casting rolls 8a, 8b, at least as a function of the casting width 1a, the casting thickness 10 and the steel quality for the position control, is stored in tables in a computer. In the event that the measured values reach outside this operating window, the control is switched from position control to pressure control. The operating window is further adjusted to the values stored in the table by changing the casting thickness 10 and / or the casting speed.
  • Positioning means a Piston-cylinder units b Cylinder for pressing load cells on the strand side

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Coating With Molten Metal (AREA)

Abstract

Une machine de coulée en bande pour couler des métaux liquides, en particulier de l'acier, comprend deux rouleaux de coulée (8a ; 8b) refroidis, disposés parallèlement de façon espacée sur la largeur de bande et formant une trémie d'alimentation. Ces rouleaux sont montés et entraînés de manière rotative et définissent, avec les parties de chant (9), l'interstice (10) des rouleaux de coulée. L'objectif de l'invention est de réduire significativement les temps de changement en cas de remplacement de rouleaux de coulée usés (8a ; 8b) ou en cas de changement de format. A cet effet, les rouleaux de coulée (8a ; 8b) sont montés dans une cassette (11) de type cadre de façon à être réglables l'un par rapport à l'autre et cette cassette (11) peut être rapidement mise en position de coulée (34) ou inversement.
PCT/EP2001/011364 2000-10-23 2001-10-02 Machine de coulee en bande pour couler des metaux liquides, en particulier de l'acier Ceased WO2002034431A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2002221639A AU2002221639A1 (en) 2000-10-23 2001-10-02 Strip casting machine for casting liquid metals, in particular steel
AT01988635T ATE268237T1 (de) 2000-10-23 2001-10-02 Bandgiessmaschine zum giessen von flüssigen metallen, insbesondere von stahl
EP01988635A EP1333947B1 (fr) 2000-10-23 2001-10-02 Machine de coulee en bande pour couler des metaux liquides, en particulier de l'acier
DE50102497T DE50102497D1 (de) 2000-10-23 2001-10-02 Bandgiessmaschine zum giessen von flüssigen metallen, insbesondere von stahl

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10052493 2000-10-23
DE10052493.1 2000-10-23
DE10102822.9 2001-01-23
DE10102822A DE10102822A1 (de) 2000-10-23 2001-01-23 Bandgießmaschine zum Gießen von flüssigen Metallen, insbesondere von Stahl

Publications (2)

Publication Number Publication Date
WO2002034431A2 true WO2002034431A2 (fr) 2002-05-02
WO2002034431A3 WO2002034431A3 (fr) 2002-09-19

Family

ID=26007460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/011364 Ceased WO2002034431A2 (fr) 2000-10-23 2001-10-02 Machine de coulee en bande pour couler des metaux liquides, en particulier de l'acier

Country Status (5)

Country Link
EP (1) EP1333947B1 (fr)
AT (1) ATE268237T1 (fr)
AU (1) AU2002221639A1 (fr)
RU (1) RU2003115201A (fr)
WO (1) WO2002034431A2 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60145253A (ja) * 1984-01-06 1985-07-31 Mitsubishi Heavy Ind Ltd 連続鋳造装置における水冷鋳造ロ−ルの交換方法
ATE282493T1 (de) * 1997-09-18 2004-12-15 Castrip Llc Metallbandgiessanlage und verfahren

Also Published As

Publication number Publication date
EP1333947A2 (fr) 2003-08-13
WO2002034431A3 (fr) 2002-09-19
RU2003115201A (ru) 2004-12-20
ATE268237T1 (de) 2004-06-15
EP1333947B1 (fr) 2004-06-02
AU2002221639A1 (en) 2002-05-06

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