EP0114293B1 - Procédé et dispositif de réglage de la conicité des petits côtés de lingotières de coulée continue - Google Patents

Procédé et dispositif de réglage de la conicité des petits côtés de lingotières de coulée continue Download PDF

Info

Publication number
EP0114293B1
EP0114293B1 EP83112501A EP83112501A EP0114293B1 EP 0114293 B1 EP0114293 B1 EP 0114293B1 EP 83112501 A EP83112501 A EP 83112501A EP 83112501 A EP83112501 A EP 83112501A EP 0114293 B1 EP0114293 B1 EP 0114293B1
Authority
EP
European Patent Office
Prior art keywords
narrow side
side wall
side walls
billet
underside
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
EP83112501A
Other languages
German (de)
English (en)
Other versions
EP0114293A1 (fr
Inventor
Hans-Peter Kaiser
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.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag 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
Application filed by SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT83112501T priority Critical patent/ATE23462T1/de
Publication of EP0114293A1 publication Critical patent/EP0114293A1/fr
Application granted granted Critical
Publication of EP0114293B1 publication Critical patent/EP0114293B1/fr
Expired legal-status Critical Current

Links

Images

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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/168—Controlling or regulating processes or operations for adjusting the mould size or mould taper

Definitions

  • the invention relates to a method for adjusting the taper of the narrow side walls of continuous casting molds, the taper of two narrow side walls arranged between two broad side walls being adapted when the changing strand shrinkage is being cast. (Steel and iron 10/82 p. 77 “Konti Kokille”). In addition, the invention relates to a device for performing the method.
  • the aim is to dissipate heat as uniformly as possible on all sides of the strand so that the strand has a uniform shell thickness on all sides when it leaves the mold.
  • the strand shrinks differently depending on the format, casting speed and material on the narrow and broad sides. It is therefore customary to set the narrow sides of the mold cavity in a converging manner in the direction of the mold exit and to design the broad sides of the mold cavity in parallel or with a casting cone that is different from the narrow sides.
  • the prior art includes a method and a device for adapting the taper of the narrow side walls of the mold to the strand shrinkage which changes with the casting speed during the casting.
  • the position of the narrow side is continuously transmitted to the process computer with a conicity meter, which compares the respective casting conditions with the stored values that define the shrinkage of the strand and, if necessary, automatically adjusts the conicity of the narrow side to the requirements and thus keeps the gap at the mold outlet constant .
  • a major disadvantage of this method is that the actual shrinkage between the mold wall and the strand shell cannot be determined exactly due to uneven, constantly changing conditions of installation and cooling, whereby the setting of a constant shrinkage gap between the strand shell and the narrow side wall of the mold is prevented.
  • the consequences of this are uneven shell growth with the risk of breakthrough and cracking.
  • the invention has for its object to provide a method and an apparatus for performing the method, which result in an optimal and uniform cooling within the mold, especially on the narrow side walls with changing casting parameters, especially the casting speed, the casting temperature and the strand width. This should improve the strand quality and reduce the risk of breakthrough at high casting speeds and changes in casting speed.
  • this is achieved in a method of the type mentioned above in that the underside of each narrow side wall is adjusted with a force causing the contact of the narrow side wall with the edge region of the strand shell and this counteracts the bulging of the strand shell by adjusting the underside of the narrow side wall in accordance with changing strand shrinkage during casting is kept constant.
  • the new process prevents the formation of a shrink gap and the bulging of the strand crust, regardless of the respective casting conditions.
  • the elimination of the shrink gap leads to better cooling, so that the casting speed is increased, the strand quality is improved and the formation of cracks and breakthroughs is counteracted.
  • the underside of the narrow side walls against the strand shell is only started after the start-up head has emerged from the mold.
  • the force between the underside of the narrow side wall and the associated adjusting device is measured, compared with a desired value and, in the event of a deviation, an actuating variable for the adjusting device is formed.
  • the setpoint value of the force acting between the underside of the narrow side wall and the associated adjusting device is advantageously determined from the ferrostatic pressure on the portion of the area of the narrow side wall attributable to the adjusting device, a possible friction of the narrow side wall between the wide side walls and an additional safety factor.
  • the method can be designed in such a way that a support guide for the casting strand narrow sides immediately downstream of the mold is adjusted depending on the respective position of the narrow side walls of the mold. This prevents an offset between the mold and the support guide and thus harmful deformations of the strand shell below the mold.
  • a plate mold is known from DE-B2415224, which forms the preamble of device claim 5, in which narrow side walls arranged between broad side walls are provided with devices for adjusting the mold cavity to different strand widths and with devices for adjusting the casting cone.
  • the Schmais sidewalls are adjusted as a function of the cooling capacity of the mold, with a signal flow from measuring elements via average value and difference value generator to a computer that runs controls the actuators for the taper of the narrow sides. The actual investment conditions between the mold wall and the strand shell are not taken into account.
  • a device for carrying out the method has a pressure measuring cell arranged between the underside of the narrow side wall and the associated adjusting device, a setpoint generator and a computer.
  • a device for carrying out the method consists of a pressure measuring cell arranged between the underside of the narrow side wall and the associated adjusting device, a setpoint generator and a computer.
  • a spindle drive provided with a motor can be provided as an adjusting device for an underside of the narrow side wall.
  • distance measuring devices are provided, the measuring signals of which are fed to the computer to limit the inclination.
  • a cavity which receives the molten steel 1 is formed by two broad side walls 2, 3 and two narrow side walls 4, 5 arranged between them.
  • the melt 1 solidifies on the cooled mold walls 2, 3, 4, 5 to form the strand shell 6.
  • a spindle 7 is articulated in the upper region for setting the casting format and is moved in the axial direction by a motor 8 via a gear 9.
  • the spindle 7 and the gear 9 are mounted on a carrier 10.
  • the narrow side walls 4, 5 are provided in the lower region with an adjusting device which consists of a spindle 13 driven by a motor 11 via a gear 12, which are likewise mounted on the carrier 10.
  • a pressure measuring cell 15 is arranged between a joint 14 attached to the spindle 13 and the underside of the narrow side wall 4 or 5.
  • pressure medium cylinders can be provided as adjusting devices.
  • Pulse generators 18 for measuring the adjustment path from the top and bottom of the narrow side walls 4, 5 are attached to the gears 9, 12.
  • the measurement signals are input to the computer 17 as additional information to limit the inclination.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Fencing (AREA)
  • Body Structure For Vehicles (AREA)

Claims (7)

1. Procédé de réglage de la conicité des parois latérales étroites (4, 5) des lingotières de coulée continue, la conicité de deux parois latérales étroites (4, 5) situées entre deux parois latérales larges (2, 3) s'adaptant, au cours de la coulée, au retrait variable de la billette, caractérisé en ce que la partie inférieure de chaque paroi latérale étroite (4, 5) est soumise à l'action d'une force qui assure le contact de la paroi latérale étroite avec la zone des bords de la croûte (6) de la billette et en ce que cette force qui s'oppose au renflement vers l'extérieur de la croûte (6) de la billette est maintenue constante du fait que la partie inférieure de la paroi latérale étroite (4, 5) se déplace suivant les variations du retrait de la billette au cours de la coulée.
2. Procédé selon la revendication 1, caractérisé en ce que la force exercée entre la partie inférieure de la paroi latérale étroite (4, 5) et le dispositif de déplacement (13) correspondant est mesurée, comparée à une valeur de consigne U et, en cas d'écart, donne lieu à une grandeur de réglage destinée au dispositif de déplacement (13).
3. Procédé selon les revendications 1 et 2, caractérisé en ce que la valeur de consigne U de la force agissant entre la partie inférieure de la paroi latérale étroite (4, 5) et le dispositif de déplacement (13) correspondant est déterminée d'après la pression ferrostatique exercée sur la partie de surface latérale étroite (4, 5) correspondant au dispositif de déplacement (13), d'après un frottement éventuel de la paroi latérale étroite (4, 5) entre les parois latérales larges et d'après un facteur de sécurité supplémentaire.
4. Procédé selon la revendication 1, caractérisé en ce qu'un dispositif de guidage et d'appui des côtés étroits de la billette situé immédiatement à la suite de la lingotière se déplace en fonction de la position des parois latérales étroites (4, 5) de la lingotière.
5. Dispositif pour l'application du procédé selon l'une des revendications 1 à 3, qui comprend, entre deux parois latérales larges (2, 3) d'une lingotière de coulée continue, deux parois latérales étroites (4, 5) à chacune desquelles correspondent un dispositif de déplacement supérieur (7) qui détermine la largeur de la billette et un dispositif de déplacement inférieur (13) commandé par calculateur qui détermine la conicité, caractérisé en ce qu'il comprend une cellule (15) de mesure de la pression située entre la partie inférieure d'une paroi latérale étroite et le dispositif de déplacement (13) correspondant, un organe indiquant les valeurs de consigne et un calculateur (17).
6. Dispositif selon la revendication (5), caractérisé en ce que le dispositif de déplacement assurant le réglage des parois latérales étroites (4, 5) est constitué par un dispositif d'entraînement à broche (12, 13) comportant un moteur (11).
7. Dispositif selon la revendication 5, caractérisé en ce que l'enregistrement de la position des côtés étroits est assuré par des dispositifs de mesure de trajets (18) dont les signaux de mesure sont envoyés au calculateur (17).
EP83112501A 1982-12-21 1983-12-13 Procédé et dispositif de réglage de la conicité des petits côtés de lingotières de coulée continue Expired EP0114293B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112501T ATE23462T1 (de) 1982-12-21 1983-12-13 Verfahren und vorrichtung zur einstellung der konizitaet von schmalseitenwaenden von stranggiesskokillen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823247207 DE3247207A1 (de) 1982-12-21 1982-12-21 Verfahren und vorrichtung zur einstellung der konizitaet von schmalseitenwaenden von stranggiesskokillen
DE3247207 1982-12-21

Publications (2)

Publication Number Publication Date
EP0114293A1 EP0114293A1 (fr) 1984-08-01
EP0114293B1 true EP0114293B1 (fr) 1986-11-12

Family

ID=6181237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112501A Expired EP0114293B1 (fr) 1982-12-21 1983-12-13 Procédé et dispositif de réglage de la conicité des petits côtés de lingotières de coulée continue

Country Status (4)

Country Link
EP (1) EP0114293B1 (fr)
AT (1) ATE23462T1 (fr)
DE (2) DE3247207A1 (fr)
ES (1) ES527560A0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117073A1 (de) * 1991-05-22 1992-11-26 Mannesmann Ag Temperaturmessung brammenkokille

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3407294C2 (de) * 1984-02-29 1986-04-24 SMS Schloemann-Siemag AG, 4000 Düsseldorf Vorrichtung zur Verstellung von Kokillenschmalseitenwänden
DE3643740A1 (de) * 1986-12-20 1988-06-30 Schloemann Siemag Ag Stahlstranggiesskokille
DE3721266A1 (de) * 1987-06-27 1989-01-12 Schloemann Siemag Ag Verstellbare stranggiesskokille zur erzeugung von vorprofilen fuer die traegerwalzung
DE3908328A1 (de) * 1989-03-10 1990-09-13 Mannesmann Ag Einrichtung zur regelung der konizitaet
JP2639758B2 (ja) * 1991-08-01 1997-08-13 新日本製鐵株式会社 スラブ連続鋳造のスタート方法
DE4210771C2 (de) * 1992-04-01 1994-07-21 Preussag Stahl Ag Verfahren und Vorrichtung zum Herstellen eines Profiles
CN1052929C (zh) * 1992-12-30 2000-05-31 新日本制铁株式会社 板坯连续浇铸的起动方法
AT405253B (de) * 1994-10-11 1999-06-25 Voest Alpine Ind Anlagen Stranggiesskokille
DE19748305A1 (de) * 1997-10-31 1999-05-06 Schloemann Siemag Ag Stranggießkokille
AT519154B1 (de) * 2016-09-26 2019-12-15 Primetals Technologies Austria GmbH Regelung der Schmalseitenkonizität einer Stranggusskokille
DE102017213067A1 (de) 2017-05-03 2018-11-08 Sms Group Gmbh Verfahren zum Einstellen einer Konizität einer Kokille einer Stranggießanlage und Vorrichtung für eine Stranggießanlage
DE102017111686A1 (de) * 2017-05-30 2018-12-06 Primetals Technologies Austria GmbH Automatisierte Übernahme der erfassten Schrägstellung von Seitenwänden von Stranggießkokillen
CN115338379B (zh) * 2022-08-19 2024-07-16 日照钢铁控股集团有限公司 窄面铜板锥度补偿方法、装置、介质、设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH552423A (de) * 1972-04-18 1974-08-15 Concast Ag Verfahren und vorrichtung zum steuern des waermeentzuges in kokillen beim stranggiessen.
JPS5340631A (en) * 1976-09-27 1978-04-13 Kawasaki Steel Co Method of changing width of casting in continuous casting
AT374128B (de) * 1978-06-14 1984-03-26 Voest Alpine Ag Stranggiesskokille

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117073A1 (de) * 1991-05-22 1992-11-26 Mannesmann Ag Temperaturmessung brammenkokille

Also Published As

Publication number Publication date
DE3247207A1 (de) 1984-07-05
DE3367541D1 (en) 1987-01-02
EP0114293A1 (fr) 1984-08-01
ES8500780A1 (es) 1984-11-16
ATE23462T1 (de) 1986-11-15
ES527560A0 (es) 1984-11-16

Similar Documents

Publication Publication Date Title
EP0114293B1 (fr) Procédé et dispositif de réglage de la conicité des petits côtés de lingotières de coulée continue
EP0334802B1 (fr) Installation de coulée pour la fabrication continue de bande métallique et procédé
EP0515010B1 (fr) Mesure de la température à une lingotière pour brammes
DE60034273T2 (de) Verfahren und Vorrichtung zum Giessen eines Metallstranges
EP3515634B1 (fr) Réglage de la conicité de petit côté d'une lingotière de coulée continue, procédé et dispositif
DE3842789A1 (de) Giessvorrichtung fuer eine zweiwalzen-stranggiessmaschine
DE3842847A1 (de) Giessvorrichtung fuer eine zweiwalzen-stranggiessmaschine
EP0019114B1 (fr) Procédé et dispositif pour la coulée continue de plusieurs barres
EP0028766B1 (fr) Procédé et installation pour changer les dimensions d'une barre lors de la coulée continue
EP3993921B1 (fr) Alimentation de matière en fusion pour installations de coulée à bande
EP0627968B1 (fr) Procede de coulee continue de metal, notamment d'acier, pour la production de billettes et de blooms
DE3440236C2 (fr)
DE3142099A1 (de) Verfahren und vorrichtung zum stranggiessen von metall unter gesteuerter belastung
DE2451645A1 (de) Verfahren und vorrichtung zum vergiessen von metallschmelze in ein aufnahmegefaess
DE69802316T2 (de) Brammen-Stranggiessmaschine mit Vorrichtung zum Auswechseln eines Tauchgiessrohres und Verfahren zum Auswechseln eines Tauchgiessrohres
EP0560024B1 (fr) Procédé de coulée continue de métal
EP0083916B1 (fr) Dispositif pour la coulée continue horizontale de métaux et d'alliages, notamment d'acier
DE2853868C2 (de) Verfahren zum Stranggießen von Stahl sowie dementsprechend hergestellter Stahlstrang
EP0383413B1 (fr) Procédé de coulée continue
DE1504740B2 (de) Vorrichtung zum regeln des abstandes zwischen einer giesswalze und einem giessbehaelter
EP1057557A1 (fr) Procédé et dispositif pour la coulée continue de métal
EP0330646A1 (fr) Procédé pour la coulée continue d'un feuillard mince ou d'une bramme mince et installation pour la mise en oeuvre du procédé
CH646352A5 (en) Apparatus for regulating the secondary cooling in a continuous-casting installation with batchwise smelt supply via a tundish
EP0679460B1 (fr) Lingotière électromagnétique réglable pour la coulée continue
DE3009697A1 (de) Verfahren zur automatischen steuerung des betriebszustandes der kokille von metallstranggussanlagen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19831213

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT LU NL

REF Corresponds to:

Ref document number: 23462

Country of ref document: AT

Date of ref document: 19861115

Kind code of ref document: T

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19861231

REF Corresponds to:

Ref document number: 3367541

Country of ref document: DE

Date of ref document: 19870102

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19871231

Year of fee payment: 5

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890206

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19891013

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19891231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19891231

Year of fee payment: 7

BERE Be: lapsed

Owner name: SMS SCHLOEMANN-SIEMAG A.G.

Effective date: 19891231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19900701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19901213

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19910830

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19931228

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19941213

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990217

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001003