EP0049239B1 - Dispositif de coulée en continu - Google Patents

Dispositif de coulée en continu Download PDF

Info

Publication number
EP0049239B1
EP0049239B1 EP81890156A EP81890156A EP0049239B1 EP 0049239 B1 EP0049239 B1 EP 0049239B1 EP 81890156 A EP81890156 A EP 81890156A EP 81890156 A EP81890156 A EP 81890156A EP 0049239 B1 EP0049239 B1 EP 0049239B1
Authority
EP
European Patent Office
Prior art keywords
nozzle block
molten metal
seal
metal container
alloys
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
EP81890156A
Other languages
German (de)
English (en)
Other versions
EP0049239A1 (fr
Inventor
Max Ahrens
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.)
Max Ahrens En Manfred Haissig Beiden Te Irvine Ca
Original Assignee
Boehler 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 Boehler AG filed Critical Boehler AG
Priority to AT81890156T priority Critical patent/ATE9286T1/de
Publication of EP0049239A1 publication Critical patent/EP0049239A1/fr
Application granted granted Critical
Publication of EP0049239B1 publication Critical patent/EP0049239B1/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
    • B22D11/14—Plants for continuous casting
    • B22D11/143—Plants for continuous casting for horizontal casting
    • 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
    • B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
    • B22D11/047—Means for joining tundish to mould

Definitions

  • the invention relates to a continuous casting device for high-melting metals and their alloys, for. B. steel.
  • the continuous casting devices for high-melting alloys differ significantly from those for metals with a low melting point. Due to the higher thermal stress different materials, e.g. B. the usual refractory linings, steel fittings and the like are no longer used. Other materials with a higher thermal resistance have to be used, whereby these usually have a lower mechanical strength, so that other constructive solutions have to be sought.
  • the continuous casting devices for low-melting metals it is an essential factor that the best possible thermal insulation is achieved between the mostly water-cooled mold and the melt container. For this purpose, asbestos is arranged between the mold and the melt container, for example.
  • a casting device with a horizontal sliding mold in which a slide is provided.
  • the slide consists of three plates of a ceramic material, e.g. As aluminum oxide, zirconium oxide or a nitrogen-containing boron compound, which are each arranged in a metal frame. The plates are pressed against each other.
  • the middle plate is designed to be movable and has a cylindrical opening which is aligned with those of the other plates in the open state.
  • the outer plate has a cone which cooperates with that of the nozzle stone.
  • the mold and thus the nozzle block are pressed against the outer plate, which is intended to seal the nozzle block in the conical bore.
  • conical sealing surfaces have the disadvantage that they have to match completely, since otherwise the nozzle stone or the outer plate is destroyed before a seal is achieved.
  • a horizontal continuous casting device with a melt container which has at least one channel which, with the cavity of an essentially horizontally arranged mold, has at least one essentially flat sealing surface (s) between itself and the melt container penetrating and in the channel part reaching nozzle stone is connected to refractory material.
  • the nozzle stone which is in close contact with the mold, forms part of the cooling zones for the strand of the metal to be cast and is therefore made from a low-friction material having a refractory material.
  • Only graphite is specifically mentioned as such, while only copper is mentioned as the casting metal.
  • a separate protective tube is expediently required to protect the graphite and the nozzle block is necessarily in several parts.
  • the object of the invention is to provide a quickly releasable connection between the melt container and the continuous casting mold, which does not have the disadvantages of the above-mentioned devices, in particular high sensitivity of the nozzle stone material and the risk of carbon being released into the casting metal, and which is suitable for casting high-melting metals and their Alloys, e.g. B. steel is suitable.
  • the invention thus relates to a horizontal continuous casting device of the type described above, which is characterized in that for casting high-melting metals and their alloys, for. B steel, the nozzle stone is ceramic, preferably made of zirconium oxide, and the seal is formed by a fleece made of aluminum oxide fibers.
  • the arrangement and use of the nozzle block with fleece seal prevents direct contact between the molten metal and the fleece, so that dissolution of the fleece and thus contamination of the molten metal is hindered, which is reinforced by the use of extremely inert aluminum oxide. Due to the flat sealing surfaces, essentially only compressive forces act on the ceramic material.
  • the fiber fleece made of aluminum oxide also compensates for unevenness on the one hand and on the other hand it acts as a seal for the molten metal that may still be able to penetrate between the nozzle stone and the inner surface of the channel.
  • the nozzle block made of ceramic material is also inert to high-melting metals, which is optimally achieved with zirconium oxide.
  • a one-piece nozzle block made of zirconium oxide is provided. This extends into the mold and into the channel of the melt container. This allows a particularly simple connection between the mold and the melt container to be obtained, with no impurities such. B. can get into the molten metal along gaps and at the same time an adjustment is made.
  • the seal 3 provided according to the invention is arranged in a ring on the basis of A1 2 0 3 fibers.
  • the thickness of the seal is approx. 3 mm, if it has not yet been pressed between the duct and the nozzle block, but becomes approx. 1.5 mm when pressurized.
  • the section 5 of the nozzle block has an opening which is cylindrical towards the distributor and towards the mold has a conically widening opening.
  • the outer surface of the mold stone is also slightly inclined in the shape of a cylinder jacket, so that the stone 5 is “stuck” along a circular sealing line in the end region of the continuous casting mold 6 that is cooled by a cooling liquid 7.
  • the circular ridge 5a of the mold block is advantageously replaced by an annular plane 5b, as a result of which the erosion is significantly reduced.
  • the nozzle block consists of zirconium oxide, at least the surface 5c of the flow opening being formed from fine-grained zirconium oxide.
  • the one-piece design of the zirconium oxide nozzle stone avoids all problems arising as a result of different coefficients of expansion of the two parts of the stone, and in particular the erosion of the gap between the parts.
  • the mold 6, the possibly one-piece nozzle block 4, 5 and the distributor 1 can, for example, be firmly connected to one another by bolts and screws (not shown), the compressive pressure occurring when the screw connection being tightened being sufficient to use the seal according to the invention based on A1 2 0 3 Fibers to achieve a secure seal of the sealing surfaces provided with it.
  • the mold 6 can also be mounted on a movable carriage and pressed by spring force against the nozzle block and this against the distributor, as a result of which the seal based on A1 2 0 3 based on at least one sealing surface is held in position and there its sealing function exercises.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Claims (2)

1. Dispositif de coulée continue pour métaux et alliages avec un récipient de métal fondu (1) qui possède au moins un canal qui est -relié avec l'espace intérieur d'une lingotière (6) disposée sensiblement horizontalement par au moins une buse (4) en matériau réfractaire traversant entre elle-même et le récipient de métal fondu une garniture d'étanchéité (3) qui passède une surface d'étanchéité ou des surfaces d'étanchéité (2a, 4b) sensiblement planes, et s'engageant à l'intérieur de son canal (2), caractérisé en ce que, pour couler des métaux et leurs alliages à point de fusion élevé, par exemple de l'acier, la buse (4) est faite en céramique, de préférence en oxyde de zirconium, et la garniture d'étanchéité (3) est formée par une nappe de fibres d'oxyde d'aluminium.
2. Dispositif de coulée continue selon la revendication 1, caractérisé en ce que la buse (4) est en une seule pièce et est faite en oxyde de zirconium.
EP81890156A 1980-10-01 1981-09-28 Dispositif de coulée en continu Expired EP0049239B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81890156T ATE9286T1 (de) 1980-10-01 1981-09-28 Stranggussvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3037059 1980-10-01
DE19803037059 DE3037059A1 (de) 1980-10-01 1980-10-01 Stranggussvorrichtung

Publications (2)

Publication Number Publication Date
EP0049239A1 EP0049239A1 (fr) 1982-04-07
EP0049239B1 true EP0049239B1 (fr) 1984-09-12

Family

ID=6113335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81890156A Expired EP0049239B1 (fr) 1980-10-01 1981-09-28 Dispositif de coulée en continu

Country Status (3)

Country Link
EP (1) EP0049239B1 (fr)
AT (1) ATE9286T1 (fr)
DE (2) DE3037059A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT373178B (de) * 1982-04-20 1983-12-27 Voest Alpine Ag Horizontalstranggiessanlage zum kontinuierlichen giessen eines stranges mit brammenquerschnitts- format
DE3401024C2 (de) * 1984-01-13 1986-01-16 Fried. Krupp Gmbh, 4300 Essen Aus mehreren Längsabschnitten bestehende Gießdüse zum Zuführen von Metallschmelze in eine Stranggießkokille und Verfahren zur Herstellung des Mundstücks einer derartigen Gießdüse
GB8401976D0 (en) * 1984-01-25 1984-02-29 Imi Refiners Ltd Casting apparatus
US4799533A (en) * 1986-06-20 1989-01-24 Steel Casting Engineering, Ltd. Horizontal continuous casting mold
AT407350B (de) * 1998-02-18 2001-02-26 Thoeni Industriebetriebe Gmbh Vorrichtung zum horizontalen stranggiessen von profilen, insbesondere von metallbändern

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH440571A (fr) * 1965-05-14 1967-07-31 Machin Anstalt Dispositif d'alimentation d'une lingotière à coulée continue
FR2213121B1 (fr) * 1972-11-06 1975-04-25 Siderurgie Fse Inst Rech

Also Published As

Publication number Publication date
EP0049239A1 (fr) 1982-04-07
DE3037059A1 (de) 1982-04-29
ATE9286T1 (de) 1984-09-15
DE3166053D1 (en) 1984-10-18

Similar Documents

Publication Publication Date Title
DE3875014T2 (de) Stranggiessofen und giessformanordnung in austauschbarer funktionseinheit.
AT392431B (de) Feuerfeste platte fuer einen gleitschieber-verschluss
DE69902943T2 (de) Stopfenstange
DE3207675C2 (fr)
EP0243384A1 (fr) Dispositif pour la filtration de metal fondu.
DE69903579T2 (de) Stopfenstange
DE68909892T2 (de) Pfannenschutzrohr mit zusammenpressbarem gasdurchlässigem ring.
EP0049239B1 (fr) Dispositif de coulée en continu
DE2820684A1 (de) Verfahren zur verbindung von zumindest zwei keramischen materialien
DE2715707C2 (de) Vorrichtung zur Wärmeableitung unter dem Schmelzenauftreffbereich in einem Zwischengefäß
CH617610A5 (en) Horizontal continuous casting machine for metals
DE3882041T2 (de) Feuerfestes rohrförmiges produkt.
DE3724995C2 (fr)
EP0859678B1 (fr) Procede et dispositif pour l'obturation d'un trou de coulee
CH639301A5 (en) Slide gate nozzle for metallurgical vessels
DE4231686C2 (de) Verschlußplatte für einen Schiebeverschluß an einem eine Metallschmelze enthaltenden Behälter
DE69608536T2 (de) Stopfenstange für Stranggusszwischengefässe
DE3026721C2 (de) Geschlossener Induktionsschmelz- und Gießofen mit auswechselbarem Schmelztiegel
DE3307193A1 (de) Feuerfeste platte, insbesondere fuer schieber- oder drehverschluesse an metallurgischen gefaessen
EP0249647B1 (fr) Burette de coulée réfractaire
DE10006939C1 (de) Ringförmiger Einsatz für eine Schieberplatte sowie zugehörige Schieberplatte
DE3805334C2 (fr)
DE2732094A1 (de) Schiebeverschluss fuer metallschmelze enthaltende gefaesse
DE2840398C2 (de) Schiebeverschlußanordnung für den Abstich an Metallschmelze enthaltenden Behältnissen
DE3511341C2 (de) Feuerfester Ausguß für Stahl-Konverter und -Elektroöfen

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

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

17P Request for examination filed

Effective date: 19820927

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

REF Corresponds to:

Ref document number: 9286

Country of ref document: AT

Date of ref document: 19840915

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: 19840930

REF Corresponds to:

Ref document number: 3166053

Country of ref document: DE

Date of ref document: 19841018

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19841221

Year of fee payment: 4

BECN Be: change of holder's name

Effective date: 19840912

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

Ref country code: BE

Payment date: 19841231

Year of fee payment: 4

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: HAISSIG, MANFRED, DIPL.-ING.

Owner name: AHRENS, MAX

RIN2 Information on inventor provided after grant (corrected)
RIN2 Information on inventor provided after grant (corrected)

Free format text: AHRENS, MAX *

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
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: DIPL.-ING. MANFRED HAISSIG

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

NLS Nl: assignments of ep-patents

Owner name: MAX AHRENS EN MANFRED HAISSIG BEIDEN TE IRVINE, CA

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

Ref country code: NL

Payment date: 19860930

Year of fee payment: 6

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

Ref country code: NL

Effective date: 19880401

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: LI

Effective date: 19880930

Ref country code: CH

Effective date: 19880930

Ref country code: BE

Effective date: 19880930

BERE Be: lapsed

Owner name: HAISSIG MANFRED

Effective date: 19880930

Owner name: AHRENS MAX

Effective date: 19880930

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: FR

Payment date: 19900803

Year of fee payment: 10

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

Ref country code: SE

Payment date: 19900926

Year of fee payment: 10

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: AT

Payment date: 19910916

Year of fee payment: 11

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

Ref country code: GB

Payment date: 19910920

Year of fee payment: 11

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

Ref country code: SE

Effective date: 19910929

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

Ref country code: DE

Payment date: 19911129

Year of fee payment: 11

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

Ref country code: FR

Effective date: 19920529

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: GB

Effective date: 19920928

Ref country code: AT

Effective date: 19920928

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

Effective date: 19920928

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

Ref country code: DE

Effective date: 19930602

EUG Se: european patent has lapsed

Ref document number: 81890156.3

Effective date: 19920408