EP0383413B1 - Procédé de coulée continue - Google Patents
Procédé de coulée continue Download PDFInfo
- Publication number
- EP0383413B1 EP0383413B1 EP90250020A EP90250020A EP0383413B1 EP 0383413 B1 EP0383413 B1 EP 0383413B1 EP 90250020 A EP90250020 A EP 90250020A EP 90250020 A EP90250020 A EP 90250020A EP 0383413 B1 EP0383413 B1 EP 0383413B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mould
- billet
- immersion nozzle
- steel
- bath level
- 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 - Lifetime
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
- B22D11/20—Controlling or regulating processes or operations for removing cast stock
- B22D11/201—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level
-
- 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
- B22D11/161—Controlling or regulating processes or operations for automatic starting the casting process
Definitions
- the invention relates to a method for the continuous casting of steel according to the preamble of claim 1.
- the invention has for its object to avoid the existing difficulties and to provide measures with which a trouble-free operation of a continuous caster for flat slabs is possible.
- a distribution channel with immersion spouts and a height adjustment by a lifting device is known, the lifting device being program-controlled.
- the adjustability serves to determine a specific predetermined pouring position of the distributor or the immersion spout.
- the system described there is operated with a mold level control.
- the lifting device and the mold level control work independently of each other.
- Stahl und Eisen (1988), pages 284 to 285, describes a control device for distributors with immersion spouts in the case of small billet formats, the pouring and height adjustment of the distributor being included in the control during the casting.
- the height adjustment of the distributor is used to influence the wear of the immersion spout in the slag zone.
- the steel flows out of a distributor 1, which is mounted for height adjustment on hydraulic cylinders 2, through the immersion nozzle 3 into a mold 4.
- the immersion nozzle 3 protrudes into the mold 4 during casting to below the bath level 5.
- the mold is provided with a bath level measuring device 8 consisting of transmitters 6 and receivers 7, which is also able to monitor the start-up process, ie the filling of the mold with melt.
- the filling and further casting process can be controlled by a slide closure 9 arranged below the distributor 1, which is adjusted to a specific flow rate by means of a hydraulic cylinder 10 is adjustable.
- the control is carried out via a slide control 11.
- the height of the distributor 1 can be regulated by influencing the hydraulic cylinders 2 by means of a position controller 12.
- the height controller 12 cooperates with a measuring device 13 which determines the height of the distributor 1.
- the strand withdrawal speed is also measured at 14.
- the measured values about the position of the slide, the bath level in the mold and the transport rollers are fed to a bath level controller 15 and controlled by this controller 15 according to predetermined values.
- the bath level controller 15, the position controller 12 of the distributor and the measuring device 13 for the height of the distributor are connected to a superordinate guide controller 16, into which data on the temperature of the steel and the steel quality are also fed.
- the factor K takes into account the temperature and quality of the steel, as well as the strand withdrawal speed and the position of the casting level.
- the invention is of course also applicable to distributors without stopper or slide control of the outflow.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Claims (1)
- Procédé de coulée continue pour de l'acier, dans lequel le bain de fusion est guidé à partir d'un distributeur (1), à travers une buse de plongée (3), dans une coquille (4) présentant une section transversale rectangulaire,
caractérisé en ce que, pour une coquille (4) présentant un écartement entre les grands côtés de 40 à 100 mm et un écartement entre les petits côtés de 200 à 2000 mm,a) le processus de coulée, en relation avec la mise en oeuvre de l'extraction de la barre de coulée (14), est réglé ou commandé automatiquement,a1) l'extraction de la barre de coulée étant-mise en route par l'atteinte d'une hauteur souhaitée de la surface du bain d'acier dans la coquille, eta2) l'entraînement de la barre de coulée, défini par un régulateur, étant amené à une vitesse d'extraction souhaitée de la barre de coulée,b) l'état de la surface du bain (5) dans la coquille est détecté par un système d'un dispositif de réglage connu (15) de la surface du bain,c) la buse de plongée (3), tout d'abord introduite dans une position effective différente de la position de fonctionnement prescrite, est amenée, vers le haut, en accord avec la surface (5) montante du bain, dans la position de fonctionnement prescrite, par l'intermédiaire d'une modification de la position du distributeur (1),c1) la position de fonctionnement prescrite de la buse de plongée étant une variable par rapport à la surface de la coquille, variable qui dépend de la température du bain de fusion d'acier, de la qualité de l'acier, de la valeur K de la solidification de la barre de coulée, de la vitesse d'extraction de la barre de coulée, et de la hauteur de la surface du bain et qui, pendant la coulée continue, fixe l'écartement d'un bord externe inférieur de la buse entre le front de solidification de l'enveloppe de la barre de coulée et la surface du bain.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90250020T ATE92806T1 (de) | 1989-02-17 | 1990-01-26 | Verfahren zum stranggiessen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3905328 | 1989-02-17 | ||
DE3905328A DE3905328C1 (fr) | 1989-02-17 | 1989-02-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0383413A2 EP0383413A2 (fr) | 1990-08-22 |
EP0383413A3 EP0383413A3 (fr) | 1991-01-30 |
EP0383413B1 true EP0383413B1 (fr) | 1993-08-11 |
Family
ID=6374608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90250020A Expired - Lifetime EP0383413B1 (fr) | 1989-02-17 | 1990-01-26 | Procédé de coulée continue |
Country Status (8)
Country | Link |
---|---|
US (1) | US5004040A (fr) |
EP (1) | EP0383413B1 (fr) |
JP (1) | JP2963481B2 (fr) |
CN (1) | CN1018804B (fr) |
AT (1) | ATE92806T1 (fr) |
CA (1) | CA2010107C (fr) |
DE (2) | DE3905328C1 (fr) |
ES (1) | ES2045777T3 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0611618A1 (fr) * | 1993-02-13 | 1994-08-24 | Inteco Internationale Technische Beratung Gesellschaft mbH | Procédé et dispositif pour coulée continue d'un lingot |
CN1116138C (zh) * | 1995-02-28 | 2003-07-30 | 日本钢管株式会社 | 连续铸造的操作控制方法及其装置 |
JP3197230B2 (ja) * | 1997-04-08 | 2001-08-13 | 三菱重工業株式会社 | ビレット連続鋳造機及び鋳造方法 |
CN100344395C (zh) * | 2005-07-28 | 2007-10-24 | 西安重型机械研究所 | 结晶器全液压夹紧液压*** |
CN105983673B (zh) * | 2015-02-28 | 2018-07-06 | 宝山钢铁股份有限公司 | 一种基于钢包下渣检测***的连铸钢包终浇控制***及工艺控制方法 |
CN104722731A (zh) * | 2015-04-17 | 2015-06-24 | 中冶赛迪工程技术股份有限公司 | 一种消除铸坯中心疏松和提高铸坯致密度的方法 |
US10913108B2 (en) * | 2017-09-12 | 2021-02-09 | Wagstaff, Inc. | Dynamically positioned diffuser for metal distribution during a casting operation |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2825104A (en) * | 1954-03-16 | 1958-03-04 | Askania Regulator Co | Method and apparatus for controlling gravity liquid flow, and for continuous metal billet casting |
US3480073A (en) * | 1967-11-29 | 1969-11-25 | United States Steel Corp | Apparatus for controlling discharge of metal from a vacuum degassing chamber |
DE2557769C3 (de) * | 1975-12-20 | 1985-01-03 | Mannesmann AG, 4000 Düsseldorf | Zwischenbehälterwagen für Metall-, insbesondere Stahlstranggießanlagen |
JPS5376926A (en) * | 1976-12-21 | 1978-07-07 | Nippon Kokan Kk | Molten metal level monitor controller of continuous casting machine that use eddy flow system range finder for measurement of molten metal level |
JPS57202952A (en) * | 1981-06-04 | 1982-12-13 | Nippon Steel Corp | Controller for continuous casting of molten metal |
JPS58199652A (ja) * | 1982-05-19 | 1983-11-21 | Mitsubishi Heavy Ind Ltd | 加圧式連鋳設備 |
DE3247002C1 (de) * | 1982-12-18 | 1983-12-22 | Mannesmann AG, 4000 Düsseldorf | Verfahren und Vorrichtung zum Angiessen von duennen Straengen aus Stahl beim Stranggiessen |
DE3423475C2 (de) * | 1984-06-26 | 1986-07-17 | Mannesmann AG, 4000 Düsseldorf | Verfahren und Einrichtung zum Stranggießen von flüssigen Metallen, insbesondere von flüssigem Stahl |
LU85878A1 (de) * | 1985-05-07 | 1986-12-05 | Arbed | Verfahren zur automatischen steuerung des anfahrbetriebes einer metall-stanggiessanlage |
-
1989
- 1989-02-17 DE DE3905328A patent/DE3905328C1/de not_active Expired - Fee Related
-
1990
- 1990-01-26 EP EP90250020A patent/EP0383413B1/fr not_active Expired - Lifetime
- 1990-01-26 AT AT90250020T patent/ATE92806T1/de not_active IP Right Cessation
- 1990-01-26 ES ES90250020T patent/ES2045777T3/es not_active Expired - Lifetime
- 1990-01-26 DE DE9090250020T patent/DE59002233D1/de not_active Expired - Lifetime
- 1990-02-14 US US07/480,099 patent/US5004040A/en not_active Expired - Lifetime
- 1990-02-15 CA CA002010107A patent/CA2010107C/fr not_active Expired - Fee Related
- 1990-02-15 CN CN90100716A patent/CN1018804B/zh not_active Expired
- 1990-02-16 JP JP2036007A patent/JP2963481B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1018804B (zh) | 1992-10-28 |
JP2963481B2 (ja) | 1999-10-18 |
CN1044911A (zh) | 1990-08-29 |
EP0383413A3 (fr) | 1991-01-30 |
CA2010107C (fr) | 2000-04-04 |
JPH02258151A (ja) | 1990-10-18 |
DE3905328C1 (fr) | 1990-07-19 |
EP0383413A2 (fr) | 1990-08-22 |
ES2045777T3 (es) | 1994-01-16 |
US5004040A (en) | 1991-04-02 |
DE59002233D1 (de) | 1993-09-16 |
ATE92806T1 (de) | 1993-08-15 |
CA2010107A1 (fr) | 1990-08-17 |
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