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EP0080998B1 - Installation pour la coulée continue horizontale des métaux ou alliages - Google Patents

Installation pour la coulée continue horizontale des métaux ou alliages Download PDF

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Publication number
EP0080998B1
EP0080998B1 EP19820890177 EP82890177A EP0080998B1 EP 0080998 B1 EP0080998 B1 EP 0080998B1 EP 19820890177 EP19820890177 EP 19820890177 EP 82890177 A EP82890177 A EP 82890177A EP 0080998 B1 EP0080998 B1 EP 0080998B1
Authority
EP
European Patent Office
Prior art keywords
strand
withdrawal
mold
continuous casting
take
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
Application number
EP19820890177
Other languages
German (de)
English (en)
Other versions
EP0080998A1 (fr
Inventor
Manfred Dipl.-Ing. Haissig
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.)
Haissig Manfred Dipl-Ing
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0080998A1 publication Critical patent/EP0080998A1/fr
Application granted granted Critical
Publication of EP0080998B1 publication Critical patent/EP0080998B1/fr
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/14Plants for continuous casting
    • B22D11/143Plants for continuous casting for horizontal casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12Accessories for subsequent treating or working cast stock in situ
    • B22D11/128Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1284Horizontal removing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/12Straight saw blades; Strap saw blades
    • B23D61/123Details of saw blade body

Definitions

  • the invention relates to a device for the horizontal continuous casting of metals or alloys, in particular steels, which has a fixed, cooled sliding mold, optionally connected to this aftercooler and a strand extraction device which can be displaced in the direction of the longitudinal axis of the strand.
  • C-2 340 636 a device for the horizontal continuous casting of metals or alloys, in particular steels, which has a fixed, cooled sliding mold, optionally connected to this aftercooler and a strand extraction device which can be displaced in the direction of the longitudinal axis of the strand.
  • the strand which has not yet fully solidified in the casting mold is pulled out of the mold by means of the strand withdrawal device.
  • the strand is advantageously withdrawn step by step.
  • Exact strand withdrawal is achieved today primarily by means of drive rollers or pairs of drive rollers which act directly on the strand. Driving rollers ensure constant contact between the strand and the take-off device, which ensures an exact strand withdrawal.
  • the strand In the continuous casting process, while the metal strand to be cast is subjected to shaping in the mold after leaving the melt container and possibly a cooling process in aftercoolers, the strand continuously cools and the thickness of the strand skin increases.
  • phase transformations can also occur during the cooling and progressive solidification of the strand, also different from metal to metal or from alloy to alloy, during which, apart from the usually occurring shortening of the strand, possibly also Dimensional consistency can occur despite cooling.
  • DE-C-1583611 describes a strand pull-off device in which the frame carrying the driving rollers is pushed back and forth in the strand axis direction during the strand pull-off process.
  • a strand withdrawal stand which is also oscillating in the strand axis direction, but is equipped with clamping jaws, is also provided in the device described in AT-B-277 489.
  • the reversal points of the oscillating movement of the scaffold or of the strand withdrawal elements are constantly predefined, that is to say the first detection of the strand by the strand withdrawal elements takes place constantly at the same point with each back and forth movement.
  • the take-off device is designed to be movable and moves during the removal, a pulling off of the strand which is individually tailored to the metal or alloy to be cast and its specific behavior during the cooling process can take place exactly at the point at which the Strand skin is already strong enough to rule out a possible strand break or the like.
  • the aim of the invention is to provide a device for horizontal continuous casting, which makes it possible to set the location of the attack on the strand take-off precisely on the metal or alloy to be cast, and possibly also on the cross-sectional dimension of the strand, and on these How to exactly take into account its individual behavior and properties during the controlled cooling in the aftercooler and especially when cooling on the way after leaving the mold and aftercooler.
  • the invention relates to a device for the horizontal continuous casting of metals and alloys, in particular steels, which has a fixed, cooled slide mold, optionally connected to this aftercooler and a strand extraction device which can be displaced in the direction of the longitudinal axis of the strand, and is characterized in that the strand take-off stand for setting a desired, constant distance between the location of the exit of the strand from the mold or from the aftercooler and the strand take-off element which detects the strand, in particular a pair of drive rollers, is displaceable into the corresponding position and can be ascertained there, and, if appropriate, that Strand take-off device, in particular the driven drive roller of the pair of drive rollers, on the longitudinally displaceable take-off frame, on which the horizontally guided strand rests, is designed to be height-adjustable transversely to the strand take-off direction.
  • the inventive longitudinal displaceability of the fume cupboard to both sides and lockability enable the system to be set in a targeted manner to the “metallurgical length of the strand that has been drawn off, that is, the path of the strand that it has to go through after leaving the mold or the aftercooler , before it is caught safely by the strand withdrawal elements on the scaffold.
  • the practical embodiments of the longitudinally displaceable arrangement of the strand take-off stand have no limits; This is usually mounted on rails via wheels or rollers.
  • a particular advantage of the invention consists in the fact that each already existing extraction device in use only needs to be supplemented, and the described improvement in the strand production can be achieved with this less complex measure.
  • the adjustment of the position of the fume cupboard to the previously described distance from the end of the aftercooler can be carried out, for example, by means of a screw drive, which is advantageously driven by a, preferably step-by-step, DC motor.
  • a stepper motor can be operated via a central control unit, e.g. B. a microprocessor, easily control according to a predetermined program, making a simple and very low demands on the operating personnel, each matched to the metal to be cast and the strand dimension, very exact setting of the "metallurgical length on the strand, that is, the distance from that location , where the strand withdrawal device or the strand withdrawal member acts on the strand without impairing it and the place where the strand leaves the mold or the aftercooler is reached.
  • the height adjustment of the strand take-off elements can be carried out, for example, by means of a screw drive, as can the longitudinal displacement of the frame.
  • the drive for this can advantageously also take place with a, preferably step-by-step, DC motor.
  • the height adjustability of the extraction elements of the longitudinally displaceable extraction scaffold is also important if strands of different cross-sectional dimensions are to be produced on one and the same installation, and the height of the bottom of the strand due to the use of molds and aftercoolers of different cross-sectional dimensions.
  • the height of the pull-out can be optimally adjusted to the cross-sectional dimension of the strand currently being cast, so that when the strand enters the take-off elements, in particular driving rollers, the strand lies optimally without bending and thus also Extensive constancy in the transmission of the forces of the take-off element, in particular the drive rollers, can be achieved on the strand to be drawn off.
  • a the exactness of the strand withdrawal process increasing, favorable design of the device, which is particularly suitable for an oscillating strand withdrawal, consists in the fact that the withdrawal elements are formed by pairs of drive rollers, with at least one drive roller on the longitudinally displaceable trigger frame in a known manner either directly on the axis of the arranged driving motor, or is directly coupled to it, a step-by-step direct current motor being preferred as the motor.
  • the continuous casting installation according to FIGS. 1 and 2 is formed from the melt distributor 1 located on the distribution carriage, above which the ladle carriage with the ladle 2 for loading the distributor is located in the illustration.
  • the metal to be cast reaches the horizontal mold 3, also mounted on a carriage, in which the strand is shaped and cooled.
  • the strand which has a solidified strand skin and a molten core, is guided through the stirring coils 4, which are also mounted on trolleys and which induce inductive circulation of the liquid strand core, and is then designed and displaceable by the take-off member or the take-off members of the roller, which is mounted on rolls each individually detected on the metal to be cast in its distance from the end of the mold and in the corresponding position lock strand 5.
  • FIG. 1 another position of the displaceably designed trigger frame 5 is indicated in FIG. 1, in which this z. B. is brought when the metal to be cast tends to delay strand formation and at a position closer to the mold 3 damage to the strand could not be completely excluded.
  • the individual control of the individual parts of the continuous casting system such as. B. the opening of the mold inlet slide as a function of the height of the melt in the distributor 1, the cooling of the mold 3, the position and loading of the stirring coils 4, the respective position of the strand take-off stand 5, the position height of the drive rollers 5a on the stand, the control of their drive unit, the control of the position of the scissors 6 and their function and finally that of the removal of the cut material via the rollers 7 and 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Sawing (AREA)

Claims (2)

1. Dispositif pour la coulée continue horizontale de métaux ou d'alliages, en particulier d'aciers, qui présente une coquille lisse (3) réfrigérée, en position fixe, des réfrigérants complémentaires, le cas échéant, raccordés à la coquille et un dispositif d'extraction du lingot (5) mobile dans le sens de l'axe longitudinal du lingot, caractérisé par le fait que la charpente d'extraction du lingot (5), en vue du réglage d'une distance constante, souhaitée selon le cas, entre le point de sortie du lingot de la coquille (3) ou du réfrigérant complémentaire et l'organe d'extraction saisissant le lingot, en particulier une paire de rouleaux d'entraînement (5a), est réalisée de manière à pouvoir coulisser vers la position correspondante et y être fixée et par le fait que, le cas échéant, l'organe d'extraction du lingot, en particulier le rouleau entraîné de la paire de rouleaux d'entraînement (5a) est monté de manière réglable en hauteur, sur la charpente d'extraction (5) mobile longitudinalement sur laquelle s'appuie le lingot conduit horizontalement, transversalement à la direction d'extraction du lingot.
2. Dispositif selon la revendication 1, caractérisé par le fait qu'au moins un rouleau d'entraînement (5a) est entraîné par un moteur à courant continu fonctionnant pas à pas, tandis que le moteur et le rouleau d'entraînement possèdent, d'une manière connue en soi, un axe commun ou bien un accouplement direct entre leurs axes respectifs.
EP19820890177 1981-11-27 1982-11-26 Installation pour la coulée continue horizontale des métaux ou alliages Expired EP0080998B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT5110/81 1981-11-27
AT511081A AT373179B (de) 1981-11-27 1981-11-27 Vorrichtung zum horizontalen stranggiessen von metallen oder legierungen

Publications (2)

Publication Number Publication Date
EP0080998A1 EP0080998A1 (fr) 1983-06-08
EP0080998B1 true EP0080998B1 (fr) 1985-08-28

Family

ID=3572042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820890177 Expired EP0080998B1 (fr) 1981-11-27 1982-11-26 Installation pour la coulée continue horizontale des métaux ou alliages

Country Status (4)

Country Link
EP (1) EP0080998B1 (fr)
JP (1) JPS5893542A (fr)
AT (1) AT373179B (fr)
DE (2) DE8219586U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8704939A (pt) * 1986-09-29 1988-05-17 Steel Casting Eng Ltd Tesoura para tarugos aperfeicoada

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1395479A (fr) * 1964-05-25 1965-04-09 Procédé et dispositif pour la coulée horizontale de métaux
GB1178981A (en) * 1966-02-15 1970-01-28 Campbell Gifford & Morton Ltd Improvements relating to the continuous casting of metals
DE1583611C3 (de) * 1967-09-29 1974-08-15 Demag-Elektrometallurgie Gmbh, 4100 Duisburg Vorrichtung zum absatzweisen Fördern eines metallischen Gießstranges
DE2340636C3 (de) * 1973-08-10 1980-04-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Einrichtung zum schrittweisen Ausziehen eines Stranges aus einer horizontalen Stranggießkokille
FR2374984A1 (fr) * 1976-12-22 1978-07-21 Uk Nii Metallov Machine horizontale pour la coulee continue de metaux et d'alliages

Also Published As

Publication number Publication date
AT373179B (de) 1983-12-27
DE3265902D1 (en) 1985-10-03
ATA511081A (de) 1983-05-15
EP0080998A1 (fr) 1983-06-08
DE8219586U1 (de) 1984-04-05
JPS5893542A (ja) 1983-06-03

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