[go: up one dir, main page]

EP0218855B1 - Procédé et appareil de coulée continue - Google Patents

Procédé et appareil de coulée continue Download PDF

Info

Publication number
EP0218855B1
EP0218855B1 EP86111710A EP86111710A EP0218855B1 EP 0218855 B1 EP0218855 B1 EP 0218855B1 EP 86111710 A EP86111710 A EP 86111710A EP 86111710 A EP86111710 A EP 86111710A EP 0218855 B1 EP0218855 B1 EP 0218855B1
Authority
EP
European Patent Office
Prior art keywords
mould
continuous
casting
gas
overhang
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
EP86111710A
Other languages
German (de)
English (en)
Other versions
EP0218855A1 (fr
Inventor
Wolfgang Dr. Dipl.-Ing. Schneider
Kurt Krämer
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke 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 Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to AT86111710T priority Critical patent/ATE47544T1/de
Publication of EP0218855A1 publication Critical patent/EP0218855A1/fr
Application granted granted Critical
Publication of EP0218855B1 publication Critical patent/EP0218855B1/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
    • B22D11/07—Lubricating the moulds
    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0401—Moulds provided with a feed head

Definitions

  • the invention relates to a method for continuous casting in a continuous casting mold with a mold attachment according to the preamble of claim 1.
  • a method and a device for performing the method of the type mentioned is known from DE-OS 27 34 388 (Showa).
  • the known method leads to reasonably smooth bar surfaces only under favorable conditions.
  • monitoring and regulating the pressure of gas and lubricating oil flow rate is required, as well as ongoing temperature measurement to set the casting parameters. This often leads to difficulties in operation - which are exacerbated by fluctuations in the metal level and changes in the metallostatic pressure during the casting process.
  • the object of the present invention is to avoid the disadvantages mentioned at the outset and to develop a method and a device for continuous casting, with which smooth and clean ingot surfaces can be achieved independently of the respective casting conditions.
  • the special surface quality is characterized by the prevention of glue points and the reduction of surface segregation to a level that enables further processing without turning off the bar.
  • the mold tread below the overhang is absolutely smooth and free of bores, steps or grooves.
  • a laminar flow parallel to the mold running surface must be maintained so that the incoming metal does not come into contact with the mold wall.
  • This effect is reinforced by the fact that a minimum distance of 2-5 mm is provided between the start-up block and the mold running surface and a negative pressure in this intermediate space, by means of which cooling water blown out at the mold outlet end (water jet pump effect) is generated.
  • FIG. 1 shows a cross section through the mold according to the invention.
  • the mold 1 with the mold attachment which consists of a hot head 2 and a gas guide block 3 with a gas channel 13.
  • a bore 4 for the separating and / or lubricant and a channel 5 for water cooling are contained in the mold 1.
  • An annular gap 6 is formed between the mold 1, the hot head 2 and the gas guide block 3, which runs parallel to the running surface 7 at least in the vicinity of the outlet opening. It is important that there are no shoulders, bores or grooves on the tread and in the exit area of the ring channel, so that an approximately laminar flow of the mixture of separating and / or lubricant and gas is made possible.
  • the gas is blown through the annular channel 6 into the space below the overhang 8 of the meniscal cavity 9.
  • Gas / oil mists (emulsions) form, which emerge in laminar flow below the overhang 8 in the withdrawal direction and parallel to the mold running surface and extend into the space between mold 1 and the start-up block.
  • the vacuum there generated by the water jet emerging from channel 5, provides for the formation of an annular gas / oil veil which completely shields the mold wall 7 from the liquid metal.
  • FIGS. 2 to 5 show further embodiments of the invention.
  • the mold attachment 22 in FIG. 2 is made in one piece.
  • the bore for the gas channel 14 is located in the mold attachment 22 and opens into a wide antechamber 15 between the overhang 8 and the mold running surface 7. This is where the mixture formation with the separating and / or lubricant takes place, which is introduced from the bore 4 in the mold 1.
  • water 11 is blown out of the channel 5.
  • FIG. 3 A further variant of the device according to the invention is shown in FIG. 3.
  • the mold attachment is divided horizontally into two partial areas 22a, 22b.
  • the gas line 16 also extends in the upper part 22a in the direction of the strand withdrawal and is only interrupted by a chamber 22c for gas distribution.
  • the mold 1 has a support wall 12 for the secure positioning of the mold attachment 22a, b.
  • the other parts, such as lubricant bore 4 and anteroom 15 correspond to the embodiment according to FIG.
  • a differently shaped gas guide block in the form of an insert 17 is provided between the mold 1 and the hot head 2.
  • an insert 18 is arranged between the mold 1 and the hot head 2 in a corresponding manner.
  • the gas line 19 is guided horizontally through the mold 1 and that and the insert part 18 into an antechamber 20, from which the gas reaches the annular gap 6.
  • the mixture with the lubricant, which is supplied via bore 4 is variable between 2 and 10 mm before the outlet of the annular gap opening. All other features correspond to the parts described in connection with the previous figures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Coating With Molten Metal (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Toys (AREA)

Claims (7)

1. Procédé de coulée continue dans un lingotière comportant un réservoir d'alimentation (22) dont la paroi intérieure fait saillie sur la paroi intérieure de la lingotière en formant un surplomb (8), la paroi intérieure de la lingotière étant refroidie et lubrifiée, un gaz sous pression tel que l'air, l'azote ou un gaz inerte étant introduit au niveau du surplomb (8) du réservoir d'alimentation (22) en même temps qu'un lubrifiant dans l'espace creux dans la lingotière et un bloc de démarrage étant utilisé lors de la coulée, caractérisé en ce que l'on produit dans le passage entre le bloc de démarrage et la surface d'écoulement (7) de la lingotière un vide partiel, en ce que l'on mélange l'agent de démoulage et/ou le lubrifiant et le gaz avant l'entrée dans l'espace creux de la lingotière (1) dans un rapport en volume de 1-4:1000 en formant un brouillard gaz/huile et en ce que l'on envoie ce mélange, en partant du surplomb du réservoir d'alimentation (22) dans la direction d'extraction parallèlement à la surface d'écoulement (7) de la lingotière et le long de celle-ci, un écoulement laminaire étant ainsi maintenu.
2. Procédé selon la revendication 1, caractérisé en ce que l'on introduit, lors de la coulée et de la coulée continue, des quantités constantes d'agent de démoulage et/ou de lubrifiant et de gaz.
3. Dispositif pour la mise en oeuvre du procédé de coulée continue selon l'une des revendications précédentes, dans une lingotière comportant un réservoir d'alimentation (22) dont la paroi intérieure fait saillie sur la paroi intérieure de la lingotière en formant un surplomb (8), la paroi intérieure de la lingotière étant refroidie et lubrifiée, un gaz sous pression tel que l'air, l'azote ou un gaz inerte étant introduit au niveau du surplomb (8) du réservoir d'alimentation (22) dans l'espace creux dans la lingotière et de l'eau sortant à l'extrémité de la lingotière dans la direction d'extraction du lingot, caractérisé en ce que sont disposés, entre le surplomb (8) du réservoir d'alimentation (22) se trouvant sur la lingotière (1) et la lingotière (1), des passages sous forme de conduites pour le mélange gaz/huile, s'étendant - partant de l'espace creux du ménisque (9) - vers le haut parallèlement le long de la direction d'extraction du lingot et en ce que la surface d'écoulement de la lingotière (7) derrière le surplomb (8) est lisse et fermée partout.
4. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications précédentes, caractérisé en ce qu'un passage annulaire (6) est disposé entre le surplomb (8) du réservoir d'alimentation (22) et la lingotière (1) dont la paroi est orientée, au moins dans la zone de l'ouverture de sortie, essentiellement parallèlement à la direction d'extraction et le long de la surface d'écoulement (7) de la lingotière.
5. Dispositif selon la revendication 4, caractérisé en ce que l'embouchure du passage annulaire (6) jusqu'à l'ouverture de sortie est sur 10-30 mm parallèle à l'axe de la lingotière.
6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la jonction de l'agent de démoulage et/ou du lubrifiant et du gaz s'effectue à une distance de 2-10 mm avant l'ouverture de sortie de l'embouchure (21) du passage annulaire.
7. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'entre la surface d'écoulement (7) de la lingotière et le bloc de démarrage se trouve un passage de 2-5 mm et en ce que le bloc de démarrage présente sur son bord supérieur une arête sur tout son pourtour, surélevée.
EP86111710A 1985-09-20 1986-08-23 Procédé et appareil de coulée continue Expired EP0218855B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86111710T ATE47544T1 (de) 1985-09-20 1986-08-23 Verfahren und vorrichtung zum stranggiessen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853533517 DE3533517A1 (de) 1985-09-20 1985-09-20 Verfahren und vorrichtung zum stranggiessen
DE3533517 1985-09-20

Publications (2)

Publication Number Publication Date
EP0218855A1 EP0218855A1 (fr) 1987-04-22
EP0218855B1 true EP0218855B1 (fr) 1989-10-25

Family

ID=6281441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111710A Expired EP0218855B1 (fr) 1985-09-20 1986-08-23 Procédé et appareil de coulée continue

Country Status (7)

Country Link
EP (1) EP0218855B1 (fr)
JP (1) JPH06104267B2 (fr)
AT (1) ATE47544T1 (fr)
AU (1) AU588369B2 (fr)
CA (1) CA1282220C (fr)
DE (2) DE3533517A1 (fr)
NO (1) NO167443C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212531C1 (de) * 1992-04-15 1993-10-21 Vaw Ver Aluminium Werke Ag Gas- und Trennmittelzuführungs- und Verteilungssystem für eine Vorrichtung zum Stranggießen

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0741389B2 (ja) * 1987-10-02 1995-05-10 日本軽金属株式会社 鋳塊の半連続鋳造法及び鋳造装置
AU619759B2 (en) * 1988-09-14 1992-02-06 Showa Denko Kabushiki Kaisha Method for continuous casting a hollow metallic ingot and apparatus therefor
US5052469A (en) * 1988-09-20 1991-10-01 Showa Denko Kabushiki Kaisha Method for continuous casting of a hollow metallic ingot and apparatus therefor
CA2038233A1 (fr) * 1990-03-26 1991-09-27 Alusuisse Technology & Management Ltd. Methode programmee d'alimentation d'un metal en fusion dans les moules d'une machine a coulee continue
DE4203337C2 (de) * 1992-02-06 1994-07-07 Vaw Ver Aluminium Werke Ag Verfahren zum Stranggießen von Metallen
FR2747060B1 (fr) * 1996-04-05 1998-06-12 Ugine Savoie Sa Procede de coulee continue des metaux et installation de coulee pour sa mise en oeuvre
FR2747063B1 (fr) * 1996-04-05 1998-05-22 Ugine Savoie Sa Lingotiere de coulee continue en charge verticale des metaux
FR2765126B1 (fr) * 1997-06-26 1999-07-30 Lorraine Laminage Procede de coulee de metal liquide dans un conduit comprenant au moins deux pieces refractaires
FR2766394B1 (fr) * 1997-07-23 1999-09-03 Ascometal Sa Reglage de la tete d'une lingotiere de coulee continue en charge des metaux
EP0941786B1 (fr) * 1998-03-13 2004-01-21 Honda Giken Kogyo Kabushiki Kaisha Procédé et dispositif de lubrification pour la coulée continue d'alliages de métaux légers
DE10113345A1 (de) * 2001-03-20 2002-09-26 Sms Demag Ag Stranggießkokille für flüssige Metalle, insbesondere für flüssigen Stahl
DE10349132A1 (de) * 2003-10-17 2005-05-12 Loi Thermprocess Gmbh Verfahren und Vorrichtung zum Stranggießen von Metall
CN109014090B (zh) * 2018-08-31 2020-08-18 苏州铭恒金属科技有限公司 一种7系铝合金圆棒的热顶铸造工艺
CA3190061A1 (fr) * 2020-09-02 2022-03-10 Michael Kim Anderson Systeme, appareil et procede de purge de moulage direct en coquille

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1283442B (de) * 1965-07-24 1968-11-21 Vaw Ver Aluminium Werke Ag Verfahren zum waagerechten Stranggiessen von Aluminiumbaendern von weniger als 30 mm Dicke
US3533462A (en) * 1967-12-22 1970-10-13 United States Steel Corp Continuous-casting mold with refractory top liner
CA1082875A (fr) * 1976-07-29 1980-08-05 Ryota Mitamura Methode et appareil de coulee de premiere fusion en coquille
SE459325B (sv) * 1982-10-20 1989-06-26 Wagstaff Engineering Inc Saett och anordning foer metallgjutning
JP6039456B2 (ja) 2013-02-22 2016-12-07 大和ハウス工業株式会社 電力供給システム
JP6039458B2 (ja) 2013-02-25 2016-12-07 キヤノン株式会社 液体吐出ヘッド

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212531C1 (de) * 1992-04-15 1993-10-21 Vaw Ver Aluminium Werke Ag Gas- und Trennmittelzuführungs- und Verteilungssystem für eine Vorrichtung zum Stranggießen

Also Published As

Publication number Publication date
NO863097L (no) 1987-03-23
JPS6268657A (ja) 1987-03-28
NO167443C (no) 1991-11-06
ATE47544T1 (de) 1989-11-15
AU588369B2 (en) 1989-09-14
NO167443B (no) 1991-07-29
DE3533517A1 (de) 1987-04-02
NO863097D0 (no) 1986-07-31
CA1282220C (fr) 1991-04-02
AU6294686A (en) 1987-03-26
DE3666549D1 (en) 1989-11-30
JPH06104267B2 (ja) 1994-12-21
EP0218855A1 (fr) 1987-04-22

Similar Documents

Publication Publication Date Title
EP0218855B1 (fr) Procédé et appareil de coulée continue
DE60011474T2 (de) Giessen eines stahlbandes
DE2252722A1 (de) Verfahren und vorrichtung zum direkten kuehlen einer kontinuierlich gewalzten stange
US5325910A (en) Method and apparatus for continuous casting
DE2734388A1 (de) Verfahren und vorrichtung zum direkten hartschalen- bzw. kokillengiessen in einer zwangsgekuehlten kokille, beispielsweise einer stranggiesskokille
DE19637402C2 (de) Bandgießen
DE1252854B (de) Verfahren und Vorrichtung zum Einbringen von Zusatzstoffen beim Stranggiessen
EP1181997A1 (fr) Procédé et dispositif pour la coulée continue de bande d'acier à partir d'une masse d'acier en fusion
EP0062606B1 (fr) Dispositif pour refroidir une barre de coulée pendant la coulée continue
DE68906486T2 (de) Abstreifdüse.
DE4407873C2 (de) Verfahren und Vorrichtung zum Kühlen schmelzflüssigen Stahls
EP0019114B1 (fr) Procédé et dispositif pour la coulée continue de plusieurs barres
EP0566865B1 (fr) Système d'alimentation et de distribution pour gaz et fluide de lubrification pour un dispositif de coulée continue
EP0181567A1 (fr) Dispositif pour la coulée de bandes de métaux, en particulier d'acier
DE1458133A1 (de) Metall-Stranggussverfahren und Einrichtung zu seiner Durchfuehrung
EP2483014B1 (fr) Procédé de coulée de bandes d'acier et installation de coulée en bandes
DE68922285T2 (de) Stranggiesskokille mit direkter Kühlung mit verstellbarem Kühlmitteltreffpunkt.
DE69408603T2 (de) Vakuumdruckgiessvorrichtung
DE69913013T2 (de) Vorrichtung zum Stranggiessen mit Badbewegung
DE3210824A1 (de) Verfahren und vorrichtung zur herstellung eines langen duennen aluminiumprodukts
DE830387C (de) Verfahren und Vorrichtung zum stetigen Giessen eines Metallstranges
DE19852275A1 (de) Anlage und Verfahren zum Bandgießen
DE3856161T2 (de) Verfahren und vorrichtung zum direkten giessen von metall zur bildung langer körper
EP0107069A1 (fr) Procédé pour la coulée continue de métaux, en particulier de l'acier et installations de coulée continue pour la mise en oeuvre du procédé
DE2418853A1 (de) Verfahren und vorrichtung zum kontinuierlichen giessen und walzen eines products aus nichteisenmetall

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

AK Designated contracting states

Kind code of ref document: A1

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

17P Request for examination filed

Effective date: 19870609

17Q First examination report despatched

Effective date: 19880115

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 47544

Country of ref document: AT

Date of ref document: 19891115

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3666549

Country of ref document: DE

Date of ref document: 19891130

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
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
ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 86111710.9

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

Ref country code: GB

Payment date: 19960802

Year of fee payment: 11

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

Ref country code: BE

Payment date: 19960822

Year of fee payment: 11

Ref country code: AT

Payment date: 19960822

Year of fee payment: 11

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

Ref country code: LU

Payment date: 19960901

Year of fee payment: 11

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: 19970823

Ref country code: GB

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

Effective date: 19970823

Ref country code: AT

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

Effective date: 19970823

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

Ref country code: BE

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

Effective date: 19970831

BERE Be: lapsed

Owner name: VEREINIGTE ALUMINIUM-WERKE A.G.

Effective date: 19970831

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970823

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

Ref country code: SE

Payment date: 20020823

Year of fee payment: 17

Ref country code: CH

Payment date: 20020823

Year of fee payment: 17

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

Ref country code: SE

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

Effective date: 20030824

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

Ref country code: LI

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

Effective date: 20030831

Ref country code: CH

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

Effective date: 20030831

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: NL

Payment date: 20050812

Year of fee payment: 20

Ref country code: FR

Payment date: 20050812

Year of fee payment: 20

Ref country code: DE

Payment date: 20050812

Year of fee payment: 20

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050823

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20060823

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20060823

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA