[go: up one dir, main page]

EP0758277B1 - Procede et dispositif pour le chauffage d'une masse metallique en fusion - Google Patents

Procede et dispositif pour le chauffage d'une masse metallique en fusion Download PDF

Info

Publication number
EP0758277B1
EP0758277B1 EP95914277A EP95914277A EP0758277B1 EP 0758277 B1 EP0758277 B1 EP 0758277B1 EP 95914277 A EP95914277 A EP 95914277A EP 95914277 A EP95914277 A EP 95914277A EP 0758277 B1 EP0758277 B1 EP 0758277B1
Authority
EP
European Patent Office
Prior art keywords
melt
thermal energy
mould
casting
mold
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
Application number
EP95914277A
Other languages
German (de)
English (en)
Other versions
EP0758277A1 (fr
Inventor
Ewald Feuerstacke
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0758277A1 publication Critical patent/EP0758277A1/fr
Application granted granted Critical
Publication of EP0758277B1 publication Critical patent/EP0758277B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal

Definitions

  • the invention relates to a method for heating one over Immersion poured into a mold of a continuous caster metallic melt, especially one with a mold powder covered molten steel and a device for carrying out the Procedure.
  • JP-A-61-144 249 is the distance of frozen, on the mold wall caking slag e.g. by means of a Laser beam known.
  • the casting powder on the melt influences the Heat flow of the heat dissipated via the mold.
  • the differences in Heat flow due to the influence of the casting aids are in the Casting area is largest and decreases towards the mold exit. From this it can be concluded that the strand shell thickness by the Pouring aids essentially only in the area of the pouring level being affected.
  • the type and behavior of the mold powder influence the dissipated heat of the mold. It has been shown that from the Liquid steel contributes to the heat dissipated in the mold easily melting mold powder is larger than one melting. An even higher increase in the heat dissipated was found when using beet oil as permanent mold lubrication will.
  • Inadequate heat dissipation is one of the causes of breakthroughs in Continuous casting.
  • the breakthrough is regularly weakened Strand shell in the mold ahead, so there is a crack in the Strand shell or the slag has the heat dissipation through the Strand shell prevented. Cracks develop in the strand shell for example by hanging up during or after the mold overflows or if there is a bridge between the immersion nozzle and the strand shell.
  • the invention has therefore set itself the goal of a method and a to create appropriate device with which a uniform Heat dissipation via the mold and constant frictional forces between Strand shell and mold are guaranteed.
  • the invention achieves this aim by the characteristic features of process claim 1 and device claim 4.
  • the thermal energy is proposed in the surface to introduce the melting point in a punctiform manner and thereby Heat energy point on the surface on a predeterminable line to lead.
  • a laser beam is used, in which the energy a bundled light beam is used for heating.
  • a Laster beam differs from ordinary light by high Monochrome, coherence, parallelism and energy density.
  • the point energy introduced is not only in the amount of their thermal energy, but also in their temporal use predeterminable.
  • punctiform is not here to understand mathematically, the thermal energy point has the use usual finite expansion of lasers. So it is suggested that Thermal energy point in the areas between the immersion nozzle and the to move the corresponding long side of the mold edge. Free The starting point, the end point as well as the paths and the can be selected Speeds between these endpoints.
  • the devices for generating the laser beam can be placed in a safe place Arrange outside the mold and immersion nozzle, the laser beam via a mirror to the desired area on the surface of the Melt is feasible.
  • FIG 1a is a section and in Figure 1b) a plan view of the continuous casting device 10 is shown.
  • the melt S on which the casting powder G floats.
  • the immersion spout 12 is immersed in the melt S.
  • a laser energy source 21 is located outside the continuous casting device 10 arranged, of which a laser beam 27 via a laser optics movable central mirror 22 or a movable outside mirror 23 the surface of the molten bath S is guided.
  • the laser energy source 21 can be at any point outside the Arrange continuous caster, the laser beam over fixed mirrors 24 is conductive.
  • the mirrors 22 and 23 are pivotable about an axis 26.
  • the axis 26 is connected to a control unit 32 which is connected to a Calculator 31 is connected.
  • This computing element 31 is there measurement technology with a temperature sensor 33 and control technology with the laser energy source 21 connected.
  • Figure 2a shows the position of the energy point depending on the Time.
  • the position L is in the area between the mold 11 and the immersion spout 12 are shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Furnace Details (AREA)
  • Laser Beam Processing (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Coating With Molten Metal (AREA)
  • Tunnel Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (7)

  1. Procédé pour chauffer une matière fondue métallique introduite, par l'intermédiaire d'une busette de coulée à immersion, dans une coquille d'une installation de coulée continue, en particulier une matière fondue d'acier recouverte d'une poudre de coulée, caractérisé en ce que l'énergie thermique est appliquée à la surface de la matière fondue de façon ponctuelle, et en ce que le point d'énergie thermique est guidé sur la surface de la matière fondue sur une ligne pouvant être prédéfinie.
  2. Procédé selon la revendication 1,
    caractérisé en ce qu'au moins un point d'énergie thermique est déplacé dans les zones entre la busette de coulée à immersion et le côté longitudinal correspondant du bord de la coquille.
  3. Procédé selon la revendication 2,
    caractérisé en ce que le point d'énergie thermique est guidé, en suivant l'écoulement naturel de la matière fondue au centre de la surface de la matière fondue en commençant dans la zone de superposition busette de coulée à immersion et coquille, dans la zone de surface libre de la matière fondue.
  4. Dispositif pour chauffer une matière fondue métallique introduite, par l'intermédiaire d'une busette de coulée à immersion, dans une coquille d'une installation de coulée continue, en particulier une matière fondue d'acier recouverte d'une poudre de coulée, pour la mise en oeuvre du procédé selon la revendication 1,
    caractérisé en ce qu'une source d'énergie laser (21), ainsi qu'une optique laser (27), sont agencées à l'extérieur de la coquille (11), et en ce qu'un miroir mobile (22,23) est prévu, grâce auquel l'énergie thermique peut être appliquée, de façon pouvant être prédéterminée localement, sur la surface de la matière fondue (S).
  5. Dispositif selon la revendication 4,
    caractérisé en ce que le miroir (22,23) est suspendu sur un axe rotatif (26), pouvant être entraíné par l'intermédiaire d'une unité de commande (32).
  6. Dispositif selon la revendication 5,
    caractérisé en ce que l'unité de commande (32) est couplée à un élément de calcul (31) et pivote le miroir (22,23) suivant un programme pouvant être prédéfini et répété.
  7. Dispositif selon la revendication 6,
    caractérisé en ce que l'élément de calcul (31) est relié à des éléments de mesure (33), en particulier des capteurs de température, qui guident le rayon laser en formant avec l'unité de commande (32) un circuit de réglage.
EP95914277A 1994-04-26 1995-03-30 Procede et dispositif pour le chauffage d'une masse metallique en fusion Expired - Lifetime EP0758277B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4415212 1994-04-26
DE4415212A DE4415212C1 (de) 1994-04-26 1994-04-26 Verfahren und Vorrichtung zum Erwärmen einer metallischen Schmelze
PCT/DE1995/000427 WO1995029022A1 (fr) 1994-04-26 1995-03-30 Procede et dispositif pour le chauffage d'une masse metallique en fusion

Publications (2)

Publication Number Publication Date
EP0758277A1 EP0758277A1 (fr) 1997-02-19
EP0758277B1 true EP0758277B1 (fr) 1998-03-18

Family

ID=6516920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95914277A Expired - Lifetime EP0758277B1 (fr) 1994-04-26 1995-03-30 Procede et dispositif pour le chauffage d'une masse metallique en fusion

Country Status (12)

Country Link
US (1) US5791399A (fr)
EP (1) EP0758277B1 (fr)
JP (1) JPH09512213A (fr)
CN (1) CN1146170A (fr)
AT (1) ATE164101T1 (fr)
AU (1) AU681022B2 (fr)
BR (1) BR9507531A (fr)
CA (1) CA2188938A1 (fr)
DE (1) DE4415212C1 (fr)
RU (1) RU2120836C1 (fr)
WO (1) WO1995029022A1 (fr)
ZA (1) ZA953359B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2626406A1 (fr) * 2012-02-13 2013-08-14 Prosimet S.p.A. Composition lubrifiante pour un procédé de coulée continue

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131941A (en) * 1959-04-08 1992-07-21 Lemelson Jerome H Reaction apparatus and method
JPS61144249A (ja) * 1984-12-18 1986-07-01 Kawasaki Steel Corp 連続鋳造方法
US4750947A (en) * 1985-02-01 1988-06-14 Nippon Steel Corporation Method for surface-alloying metal with a high-density energy beam and an alloy metal
EP0235340B1 (fr) * 1986-03-07 1989-10-11 Nippon Steel Corporation Système d'anode pour réchauffage du plasma utilisé dans un panier intermédiaire
WO1989007499A1 (fr) * 1988-02-09 1989-08-24 The Broken Hill Proprietary Company Limited Procedes de surchauffage et de micro-alliage de metal fondu par contact avec un arc de plasma
US5314003A (en) * 1991-12-24 1994-05-24 Microelectronics And Computer Technology Corporation Three-dimensional metal fabrication using a laser

Also Published As

Publication number Publication date
AU681022B2 (en) 1997-08-14
ATE164101T1 (de) 1998-04-15
DE4415212C1 (de) 1995-11-09
RU2120836C1 (ru) 1998-10-27
US5791399A (en) 1998-08-11
BR9507531A (pt) 1997-09-02
AU2134695A (en) 1995-11-16
EP0758277A1 (fr) 1997-02-19
WO1995029022A1 (fr) 1995-11-02
CA2188938A1 (fr) 1995-11-02
ZA953359B (en) 1996-04-12
JPH09512213A (ja) 1997-12-09
CN1146170A (zh) 1997-03-26

Similar Documents

Publication Publication Date Title
JPH0675753B2 (ja) 電導液体流を制御する方法及び装置
DE3536879C2 (fr)
US3375862A (en) Machine for the continuous pouring of steel
DE69530567T2 (de) Verfahren und vorrichtung zum kontinuierlichen giessen von metallschmelze
KR100752693B1 (ko) 고속 연속 주조장치 및 그 작동방법
EP0758277B1 (fr) Procede et dispositif pour le chauffage d'une masse metallique en fusion
EP0033308A1 (fr) Procédé et dispositif pour éviter l'entraînement de scories vers une lingotière de coulée continue
CN87100985A (zh) 带钢浇注设备及其浇注方法
EP3993921B1 (fr) Alimentation de matière en fusion pour installations de coulée à bande
GB1559521A (en) Continuous casting
ATE92806T1 (de) Verfahren zum stranggiessen.
JP7226043B2 (ja) 連続鋳造方法
DE19752548A1 (de) Verfahren zur Vorrichtung zum Einstellen und Halten der Temperatur einer Stahlschmelze beim Stranggießen
DE3243650A1 (de) Schwimmer fuer metallschmelzen
EP0234491A2 (fr) Procédé pour terminer l'opération de coulée dans une installation de coulée de bandes d'acier
EP0276357B1 (fr) Procédé de fabrication de lingots métalliques, en particulier en acier
DE3100137C2 (de) Stranggießkokille zum Stranggießen von Metall mit einer Vibrationseinrichtung und Verfahren dazu
GB2029294A (en) Method of changing the cross sectional format of a strand being continuously cast
DE2935840A1 (de) Giesskopf fuer stranggiesskokillen
DE102005024843A1 (de) Verfahren zum Regeln der Schmalseitenkonizität einer Plattenkokille
DE1508991B2 (de) Vorrichtung zum Angießen von Verbindungsstegen zwischen Akkumulatorplatten an PolanschluBfahnen
JPH03118943A (ja) 低・中炭素鋼用連鋳鋳型およびその鋳造方法
KR200330997Y1 (ko) 침지노즐의 토출구개도 조정장치
CN117531990A (zh) 一种连铸机中间包的更换工具和方法
DE2415224C3 (de) Verfahren und Vorrichtung zum Steuern der Kühlleistung von Schmalseitenwänden bei Plattenkokillen beim Stranggießen

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: 19960911

AK Designated contracting states

Kind code of ref document: A1

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

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19970731

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

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 FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 164101

Country of ref document: AT

Date of ref document: 19980415

Kind code of ref document: T

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

Ref country code: SE

Payment date: 19980320

Year of fee payment: 4

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

ET Fr: translation filed
ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980514

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19980618

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

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

Ref country code: GB

Payment date: 19990212

Year of fee payment: 5

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

Ref country code: FR

Payment date: 19990216

Year of fee payment: 5

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

Ref country code: AT

Payment date: 19990225

Year of fee payment: 5

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

Ref country code: NL

Payment date: 19990228

Year of fee payment: 5

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

Ref country code: CH

Payment date: 19990301

Year of fee payment: 5

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

Ref country code: BE

Payment date: 19990319

Year of fee payment: 5

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

Ref country code: LU

Payment date: 19990331

Year of fee payment: 5

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: 20000330

Ref country code: GB

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

Effective date: 20000330

Ref country code: AT

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

Effective date: 20000330

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: 20000331

Ref country code: CH

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

Effective date: 20000331

Ref country code: BE

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

Effective date: 20000331

BERE Be: lapsed

Owner name: MANNESMANN A.G.

Effective date: 20000331

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 NON-PAYMENT OF DUE FEES

Effective date: 20001001

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: 20000330

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

Ref country code: FR

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

Effective date: 20001130

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

Effective date: 20001001

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: 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: 20050330