EP0473499A1 - Verfahren und Einrichtung für ein Strahlschutzrohr beim Stranggiessen - Google Patents

Verfahren und Einrichtung für ein Strahlschutzrohr beim Stranggiessen Download PDF

Info

Publication number
EP0473499A1
EP0473499A1 EP91402296A EP91402296A EP0473499A1 EP 0473499 A1 EP0473499 A1 EP 0473499A1 EP 91402296 A EP91402296 A EP 91402296A EP 91402296 A EP91402296 A EP 91402296A EP 0473499 A1 EP0473499 A1 EP 0473499A1
Authority
EP
European Patent Office
Prior art keywords
tube
dispenser
protective tube
distributor
jet
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.)
Granted
Application number
EP91402296A
Other languages
English (en)
French (fr)
Other versions
EP0473499B1 (de
Inventor
Jean-Paul Grand
Daniel Juvigny
André Vinuesa
Serge Tortosa
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.)
Sollac SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9399968&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0473499(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Publication of EP0473499A1 publication Critical patent/EP0473499A1/de
Application granted granted Critical
Publication of EP0473499B1 publication Critical patent/EP0473499B1/de
Anticipated expiration legal-status Critical
Revoked 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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles

Definitions

  • the present invention relates to a jet protective tube located between the ladle and the liquid metal distributor of a continuous casting installation and a continuous casting method using such a tube.
  • the flow of liquid metal between the ladle and the distributor takes place by passage through a jet protective tube.
  • This tube fixed to the end of the ladle taphole, is immersed in the distributor in order to guide the jet, to avoid renitriding of the steel and its oxidation due to its contact with air, and avoid entrainment of dross and slag present on the surface of the liquid metal contained in the distributor either towards the bottom, due to the emulsion generated by the fall of the metal from the ladle towards the distributor, or towards outside the dispenser due to possible splashing due to said fall.
  • part of the jet is not protected and is in contact with the ambient air, which causes oxidation of the liquid metal in this unprotected part.
  • the subject of the invention is a jet protective tube of a continuous casting installation making it possible to remedy these drawbacks as well as a continuous casting process using such a tube.
  • It relates more particularly to a jet protective tube of a continuous casting installation, characterized in particular that the lower end of this tube is provided with at least one air outlet or air outlet.
  • a continuous casting installation is made up of a ladle 1 above a distributor or distributor 2. Between the ladle 1 and the distributor 2, the metal is guided by a jet protective tube 3.
  • the ladle 1 of known type, is provided at its bottom with a tap hole 4, of vertical axis x-x, circular and arranged in its middle in the embodiment shown.
  • the distributor 2 located under the ladle, is filled with a liquid metal bath 8 and is provided at its bottom with a hole connected in a known manner to a continuous casting line 5.
  • the jet protective tube 3 is a vertical tube of length L, of axis x-x coincident with the axis of the tap hole 4 of the bag 1.
  • the device 6 is a support plate.
  • the tube 3 has, in its lower part opposite the end provided with the device 6 at least one lumen or hole 7, of height h .
  • the tube has two holes of rectangular shape arranged opposite one another in the same cross section of the tube.
  • the tube has four circular holes distributed around the axis x-x and located in the same cross section of the tube 3.
  • the tube may have gills of geometrical shapes different from those shown in FIGS. 2 and 3, and arranged differently, for example four holes of triangular shape distributed around the periphery of the tube and located in different sections or at different levels.
  • the distance d between the upper end of the hearing, the highest when the tube has several openings arranged on different sections, and the lower end of the jet protective tube 3, is at most equal to the ferrostatic height at the overflow of the distributor used, that is to say substantially the height of the distributor.
  • the jet protective tube continues to be lowered into the distributor at a speed V until the openings 7 are completely immersed in the distributor bath (Fig. 5).
  • the entire jet is protected at all stages of the process, which prevents metal oxidation phenomena in the jet.
  • the desired objective is therefore achieved effectively and by particularly simple and inexpensive means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP91402296A 1990-08-30 1991-08-22 Verfahren und Einrichtung für ein Strahlschutzrohr beim Stranggiessen Revoked EP0473499B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9010829A FR2666257B1 (fr) 1990-08-30 1990-08-30 Tube protecteur de jet d'une installation de coulee continue et procede en comportant application.
FR9010829 1990-08-30

Publications (2)

Publication Number Publication Date
EP0473499A1 true EP0473499A1 (de) 1992-03-04
EP0473499B1 EP0473499B1 (de) 1994-06-22

Family

ID=9399968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91402296A Revoked EP0473499B1 (de) 1990-08-30 1991-08-22 Verfahren und Einrichtung für ein Strahlschutzrohr beim Stranggiessen

Country Status (6)

Country Link
US (1) US5180537A (de)
EP (1) EP0473499B1 (de)
AT (1) ATE107553T1 (de)
DE (1) DE69102601T2 (de)
ES (1) ES2059081T3 (de)
FR (1) FR2666257B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109916348A (zh) * 2019-03-21 2019-06-21 广西大学 一种基于立式储罐本体泄漏口处液体落地水平距离s计算模型

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845943A (en) * 1973-10-26 1974-11-05 J Shapland Refractory pouring tube
EP0211476A2 (de) * 1985-07-30 1987-02-25 Allegheny Ludlum Steel Corporation Tauchausguss gebraucht beim Stranggiessen von Brammen
EP0264809A1 (de) * 1986-10-15 1988-04-27 British Steel plc Feuerfestes Giessrohr

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH445034A (de) * 1966-10-18 1967-10-15 Metacon Ag Ausgussvorrichtung
US4510191A (en) * 1982-09-30 1985-04-09 Toshiba Ceramics Co., Ltd. Casting nozzle
US4887748A (en) * 1986-12-29 1989-12-19 J. W. Hicks, Inc. Apparatus and method for attachment of submerged nozzle to lower plate of sliding gate valve mechanism for a continuous casting operation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845943A (en) * 1973-10-26 1974-11-05 J Shapland Refractory pouring tube
EP0211476A2 (de) * 1985-07-30 1987-02-25 Allegheny Ludlum Steel Corporation Tauchausguss gebraucht beim Stranggiessen von Brammen
EP0264809A1 (de) * 1986-10-15 1988-04-27 British Steel plc Feuerfestes Giessrohr

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109916348A (zh) * 2019-03-21 2019-06-21 广西大学 一种基于立式储罐本体泄漏口处液体落地水平距离s计算模型

Also Published As

Publication number Publication date
DE69102601T2 (de) 1994-11-24
DE69102601D1 (de) 1994-07-28
ES2059081T3 (es) 1994-11-01
FR2666257A1 (fr) 1992-03-06
EP0473499B1 (de) 1994-06-22
US5180537A (en) 1993-01-19
ATE107553T1 (de) 1994-07-15
FR2666257B1 (fr) 1992-12-11

Similar Documents

Publication Publication Date Title
FR2499229A1 (fr) Dispositif pour boucher le trou de coulee d'un recipient metallurgique
EP0269180A2 (de) Vorrichtung zum Giessen eines pastenartigen Metalles
CA1302045C (fr) Procede de moulage sous pression de pieces metalliques contenant eventuellement des fibres en ceramiques
EP0847821A1 (de) Beschickbehälter für die Aufnahme schmelzflüssigen Metalls, insbesondere Stahlschmelzen
EP0473499B1 (de) Verfahren und Einrichtung für ein Strahlschutzrohr beim Stranggiessen
FR2568152A1 (fr) Perfectionnement apporte aux busettes de coulee continue
EP0446152B1 (de) Paket zum Einführen von Leichtmetall in Aluminiumlegierungsschmelze
FR2642679A3 (fr) Dispositif d'elimination des inclusions non metalliques dans un repartiteur de coulee continue de l'acier
EP0120045B1 (de) Verfahren zur überwachung und zum öffnen der giessöffnungen von flüssige metalle enthaltenden gefässen und vorrichtung zur durchführung des verfahrens
EP0242347A2 (de) Vorrichtung zum Giessen einer flüssig-festen Mischung
EP0498684B1 (de) Ausstosseinrichtung für eine Giessschutzrohr-Trageinrichtung in eine Stranggiessvorrichtung
CA1119377A (fr) Procede de coulee continue centrifuge electromagnetique des metaux en fusion
EP0528724B1 (de) Vorrichtung zum automatischen Entschlacken des Giessstrahlschutzrohres beim Stranggiessen
WO1986003147A1 (fr) Perfectionnements aux poches de coulee pour metal en fusion
EP0030910B1 (de) Tauchrohre für elektrorotierendes Stranggiessen von Metallen
EP0382701A1 (de) Vorrichtung um das Mitlaufen von Schlacke zu verhindern
BE1000227A6 (fr) Dispositif permettant de couler un metal en phase pateuse.
EP0028569A1 (de) Verfahren zum Spülen einer Metallschmelze durch Einblasen von Gas
CA1206752A (fr) Procede et dispositif pour vidanger des recipients metallurgiques
FR2669567A1 (fr) Dispositif d'ouverture et de fermeture d'un recipient contenant un metal a l'etat liquide.
FR2651160A1 (fr) Procede et dispositif pour couler des barres metalliques ou analogues.
EP0943380A1 (de) Verfahren und Vorrichtung zum Stranggiessen von Metallen
EP0032347A2 (de) Automatische Sprühvorrichtung für den Sicherheitsbehälter eines Druckwasserreaktors
RU2009002C1 (ru) Способ разливки стали
BE1005416A6 (fr) Dispositif pour le nettoyage d'un tube de poche.

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: 19911125

AK Designated contracting states

Kind code of ref document: A1

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

17Q First examination report despatched

Effective date: 19931013

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 DK ES FR GB GR IT LI LU NL SE

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

Ref country code: DK

Effective date: 19940622

REF Corresponds to:

Ref document number: 107553

Country of ref document: AT

Date of ref document: 19940715

Kind code of ref document: T

ITF It: translation for a ep patent filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19940714

Year of fee payment: 4

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940622

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

Ref country code: AT

Payment date: 19940722

Year of fee payment: 4

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

Ref country code: DE

Payment date: 19940727

Year of fee payment: 4

REF Corresponds to:

Ref document number: 69102601

Country of ref document: DE

Date of ref document: 19940728

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

Ref country code: LU

Payment date: 19940731

Year of fee payment: 4

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

Ref country code: ES

Payment date: 19940801

Year of fee payment: 4

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

Ref country code: SE

Payment date: 19940816

Year of fee payment: 4

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

Ref country code: FR

Payment date: 19940829

Year of fee payment: 4

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

Ref country code: NL

Payment date: 19940831

Year of fee payment: 4

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

Ref country code: BE

Payment date: 19940909

Year of fee payment: 4

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19940923

EPTA Lu: last paid annual fee
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2059081

Country of ref document: ES

Kind code of ref document: T3

EAL Se: european patent in force in sweden

Ref document number: 91402296.7

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: DIDIER-WERKE AG

Effective date: 19950310

26 Opposition filed

Opponent name: VESUVIUS FRANCE S.A.

Effective date: 19950320

Opponent name: DIDIER-WERKE AG

Effective date: 19950310

NLR1 Nl: opposition has been filed with the epo

Opponent name: DIDIER WERKE AG

NLR1 Nl: opposition has been filed with the epo

Opponent name: VESUVIUS FRANCE S.A.

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: 19950822

Ref country code: GB

Effective date: 19950822

Ref country code: AT

Effective date: 19950822

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

Ref country code: SE

Effective date: 19950823

Ref country code: ES

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

Effective date: 19950823

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: 19950831

Ref country code: CH

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

Effective date: 19950831

Ref country code: BE

Effective date: 19950831

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

BERE Be: lapsed

Owner name: SOLLAC

Effective date: 19950831

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

Ref country code: NL

Effective date: 19960301

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 19950822

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

Ref country code: FR

Effective date: 19960430

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960301

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

Ref country code: DE

Effective date: 19960501

EUG Se: european patent has lapsed

Ref document number: 91402296.7

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19960808