[go: up one dir, main page]

EP0832989A2 - Procédé et appareil pour fabriquer des barres métalliques revêtues, en particulier des bandes métalliques - Google Patents

Procédé et appareil pour fabriquer des barres métalliques revêtues, en particulier des bandes métalliques Download PDF

Info

Publication number
EP0832989A2
EP0832989A2 EP97116321A EP97116321A EP0832989A2 EP 0832989 A2 EP0832989 A2 EP 0832989A2 EP 97116321 A EP97116321 A EP 97116321A EP 97116321 A EP97116321 A EP 97116321A EP 0832989 A2 EP0832989 A2 EP 0832989A2
Authority
EP
European Patent Office
Prior art keywords
melt
nozzle
crystallizer
metal
vessel
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
EP97116321A
Other languages
German (de)
English (en)
Other versions
EP0832989B1 (fr
EP0832989A3 (fr
Inventor
Fritz-Peter Professor Dr. Pleschiutschnigg
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.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag 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 SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0832989A2 publication Critical patent/EP0832989A2/fr
Publication of EP0832989A3 publication Critical patent/EP0832989A3/fr
Application granted granted Critical
Publication of EP0832989B1 publication Critical patent/EP0832989B1/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
    • B22D11/008—Continuous casting of metals, i.e. casting in indefinite lengths of clad ingots, i.e. the molten metal being cast against a continuous strip forming part of the cast product
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0035—Means for continuously moving substrate through, into or out of the bath
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0036—Crucibles
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0036—Crucibles
    • C23C2/00361—Crucibles characterised by structures including means for immersing or extracting the substrate through confining wall area

Definitions

  • the invention relates to a method for producing metal strands, in which in particular a metal band made of steel through the floor passage device a vessel filled with melt, in particular made of steel, is promoted and after crystallization of the melt the coated metal strand, in particular the coated metal strip, is withdrawn above the vessel and the crystallization carrier, the mother tape, through a floor passage device of the vessel with clear width between the mother tape and the passage device to be led.
  • the invention also relates to a device to carry out the procedure.
  • the method and device deal with the coating of mainly tapes but also profiles and wire, preferably made of Stole.
  • the tape such as Carbon steel is through the bottom a melt vessel filled with a steel melt of the same type Grade like the band or another steel grade like e.g. rustier Steel, with the melt, controls its temperature brought into contact for coating during a certain time.
  • Such methods and devices are used in the Method and device for producing thin metal strands according to EP 0 311 602 B1.
  • the bottom of the Crystallizer (vessel with melt) against the continuous belt mechanically closed.
  • This mechanical contact can with a Solid matter bodies such as a refractory stone, or steel can also be produced sliding or rolling.
  • DE 44 26 705 C1 describes an inversion casting device with a crystallizer known. This is an uncooled, cleaned metal strip low heat content removed from a metal roll and passed through a molten metal located in the crystallizer. When the metal strip comes into contact, the melt crystallizes on the relatively cool metal profile. The crystallization thickness is depending on the length of the contact time and the temperatures of the Metal profile and the molten metal. With the previously known inversion casting device is a crystallizer close to the ground horizontally encompassing template provided. Lead from the template Nozzles to the interior of the crystallizer.
  • the nozzle orifices are arranged so that the outflowing melt in a flat Angle in the strip take-off direction should strike the carrier strip, around the melt at a relative speed of almost zero to crystallize on the tape.
  • a passage for the metal strip is provided, which through a mechanical seal a leak of the melt from the Crystallizer prevented.
  • DE 195 09 691 C1 is for an inversion casting device With a crystallizer, a floor duct for the metal strip in the Crystallizer through a slot-shaped channel with little contact provided such that the molten metal in the region of the mouth of the channel is cooled to a temperature at which Two-phase area, there is a crystal content between 50 and 90%, the metal strip then in the region of the mouth of the channel this cool amount of melt is contacted.
  • the two-phase area should have such a high viscosity that it Function of a self-renewing seal takes over and one Prevent the melt from entering the gap and the floor outlet should.
  • a further inversion casting device is included a melt-filled crystallizer known, in which the Carrier tape is preheated to a temperature of about 200 ° C before the tape is introduced into the melt bath.
  • the preheating of the Carrier tape is done through an indirect heat exchange in oxygen-free environment.
  • the carrier tape is in a longer channel arranged vertically in the crystallizer passed through.
  • In the vicinity of the entry point of the carrier tape forms from the heat transfer channel into the molten metal a meniscus that lies in the two-phase area of the melt an isotherm between liquidus temperature and solidus temperature lies.
  • This two-phase area of the melt shows as in DE 195 09 691 C1 has such a high viscosity that it functions as a self-renewing seal should take over to spill to prevent the melt from the crystallizer.
  • the object of the invention is a method and an apparatus which it regardless of the steel grade, i.e. regardless of training of the two-phase area allow, both friction-free and without precise temperature control of +/- 2 ° K in the supercooling area to be able to pour the melt without problems.
  • Controlled cooling takes place in the bottom area of the melt vessel, the crystallizer.
  • a melt temperature which is greater than the liquidus temperature of the melt is set at the nozzle outlet of the bottom outlet device.
  • a meniscus in the pure melting phase is formed at the nozzle outlet of the bottom outlet device.
  • a distance is formed between the meniscus of the melt at the nozzle outlet and the start of solidification.
  • the heat dissipation in the area of the floor outlet device is regulated in dependence on the belt speed, bath temperature and gap width in such a way that the meniscus forms free and stationary at the nozzle outlet.
  • FIG. 1 gives an overall view (section) of the coil coating system schematically again.
  • the crystallizer (1) filled with Melt (2) which essentially consists of a steel structure (1.1), a refractory lining (1.2), a steel inlet (1.3) and an emergency outlet (1.4) takes the crystallization carrier, the mother tape (3) over the floor passage device (4) with nozzle (4.1).
  • the melt (2) which has a temperature in the Opening area of the nozzle, nozzle outlet (4.2) larger than T - Liquidus must have, forms a meniscus (5) at the gap between Mother tape (3) and nozzle outlet (4.2), which prevents the Prevents melt. This formation of the meniscus (5) can only then take place trouble-free when the melt temperature above T - is liquidus, i.e.
  • the melt should have an average temperature of approximately T - Liquidus + 10 ° K.
  • the course of the T - li isotherm (7) is like this adjust that the isotherm the mother tape (3) above the Menus (5) reached in point (7.1).
  • a temperature control solidification begins above the nozzle outlet (4.2) i.e. above the meniscus (5) or above the isotherm (7) and of point (7.1) and that in point (8), which is a clear one Distance (8.1) to the meniscus (5).
  • These thermal conditions allow even with temperature fluctuations of the Melting bath, which lead to changes in the distance (8.1) trouble-free, uniform coating profile (9) on the To let mother tape (3) arise.
  • the steel belt (3) is driven by pairs of rollers (10) and also a roller guide (11), which is in an inert and temperature controlled Are located vertically through the melt with an upward direction of movement (3.1).
  • a roller guide (11) which is in an inert and temperature controlled Are located vertically through the melt with an upward direction of movement (3.1).
  • the Floor passage area (4) which is equipped with the nozzle, must the heat transfer into the base plate (12) of the crystallizer (1) be controlled in such a way that in the area of the meniscus (5) no solidification at the nozzle outlet (4.2), i.e. a melt temperature prevails, which is larger than T - Liquidus and which does not drop below T - Liquidus during the casting time.
  • Figures 2 and 3 represent the crystallizer (1) with possible Floor passage devices (4) for the mother tape (3). Im Bottom can for free formation of the meniscus (5) at the nozzle exit (4.2) different devices alternatively or in combination are used.
  • a melt temperature is required on the meniscus from T -ist> T- liquidus, around a single-phase Ensure melt state.
  • the distance, gap (13) between the crystallization support, the mother tape (3) and the Nozzle outlet (4.2) should be between 0.2 and 3 mm, on the one hand jamming of the mother tape (3) in the nozzle (4.1) and on the other hand a leakage of the melt (2) from the crystallizer (1) to prevent.
  • the gap (13) at the nozzle outlet (4.2) and at the nozzle inlet (4.3) can be parallel (Fig. 2) but also conical (Fig. 3) be.
  • the conical shape leads to a trouble-free run the mother ligament (3) and free formation of the meniscus (5).
  • the nozzle width (21) when using a belt with adjustable width limits (22) can be selected as required.
  • the gap (13) between the nozzle (4.1) and mother tape (3) can be adjusted by adjusting the width (21) for a given bandwidth (23) optimally over the width below Inclusion of column (13) can be set. Still allowed this device also a change in bandwidth during a casting campaign.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
  • Continuous Casting (AREA)
  • Nonmetallic Welding Materials (AREA)
EP97116321A 1996-09-23 1997-09-19 Procédé et appareil pour fabriquer des barres métalliques revêtues, en particulier des bandes métalliques Expired - Lifetime EP0832989B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19638905 1996-09-23
DE19638905A DE19638905C1 (de) 1996-09-23 1996-09-23 Verfahren zur Erzeugung von beschichteten Metallsträngen, insbesondere Metallbändern und Beschichtungsanlage

Publications (3)

Publication Number Publication Date
EP0832989A2 true EP0832989A2 (fr) 1998-04-01
EP0832989A3 EP0832989A3 (fr) 1999-02-10
EP0832989B1 EP0832989B1 (fr) 2004-07-21

Family

ID=7806557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97116321A Expired - Lifetime EP0832989B1 (fr) 1996-09-23 1997-09-19 Procédé et appareil pour fabriquer des barres métalliques revêtues, en particulier des bandes métalliques

Country Status (4)

Country Link
US (1) US6051278A (fr)
EP (1) EP0832989B1 (fr)
AT (1) ATE271619T1 (fr)
DE (2) DE19638905C1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6037011A (en) * 1997-11-04 2000-03-14 Inland Steel Company Hot dip coating employing a plug of chilled coating metal
DE19902066A1 (de) * 1999-01-20 2000-08-03 Sms Demag Ag Verfahren und Vorrichtung zur Erzeugung von beschichteten Strängen aus Metall, insbesondere von Bändern aus Stahl
DE10201175B4 (de) * 2001-02-27 2005-07-14 Sms Demag Ag Verfahren und Vorrichtung zum Beschichten eines Bandes aus Stahl, insbesondere aus Kohlenstoffstahl, mit ankristallisierbaren Anteilen aus Stahlschmelze

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB992426A (en) * 1962-04-27 1965-05-19 Gen Electric Improvements in method and apparatus for accreting molten material
US3470939A (en) * 1965-11-08 1969-10-07 Texas Instruments Inc Continuous chill casting of cladding on a continuous support
US3483030A (en) * 1966-12-19 1969-12-09 Texas Instruments Inc Chill cladding method and apparatus
US3977842A (en) * 1968-08-27 1976-08-31 National Steel Corporation Product and process
US3709722A (en) * 1970-04-06 1973-01-09 Kennecott Copper Corp Process for accreting molten copper on a moving core member
US3995679A (en) * 1974-12-20 1976-12-07 General Electric Company Continuous casting apparatus, and a method of casting
FR2561139B1 (fr) * 1984-03-16 1986-09-12 Comp Generale Electricite Dispositif pour deposer une couche de silicium sur un ruban de carbone
EP0311602B1 (fr) * 1986-05-27 1991-07-24 MANNESMANN Aktiengesellschaft Procede pour fabriquer des barres metalliques minces
DE4426705C1 (de) * 1994-07-20 1995-09-07 Mannesmann Ag Inversionsgießeinrichtung mit Kristallisator
DE19509681C1 (de) * 1995-03-07 1996-05-02 Mannesmann Ag Verfahren und Anlage zur kontinuierlichen Erzeugung bandförmiger Bleche
DE19509691C1 (de) * 1995-03-08 1996-05-09 Mannesmann Ag Bodendurchführung eines Inversionsgießgefäßes

Also Published As

Publication number Publication date
DE59711785D1 (de) 2004-08-26
EP0832989B1 (fr) 2004-07-21
DE19638905C1 (de) 1998-01-02
EP0832989A3 (fr) 1999-02-10
US6051278A (en) 2000-04-18
ATE271619T1 (de) 2004-08-15

Similar Documents

Publication Publication Date Title
DE69629742T2 (de) Verfahren zum Giessen von Metall
DE69724498T2 (de) Verfahren zum Giessen von Stahlbändern
DE3423834A1 (de) Verfahren und vorrichtung zum kontinuierlichen giessen von metallschmelze, insbesondere von stahlschmelze
EP0834364B1 (fr) Méthode et dispositif pour des machines de coulée continue à haute vitesse avec réduction d'épaisseur pendant la solidification
DE69706510T2 (de) Verfahren und Vorrichtung zum Giessen von Metallbändern
DE10042078A1 (de) Verfahren und Vorrichtung zum kontinuierlichen Gießen von Stahlband aus Stahlschmelze
DE2043882A1 (en) Flat cast object formed with a spray of - atomised metal
EP0238844B1 (fr) Procédé pour démarrer une machine de coulée continue d'acier en bande
DE3440236C2 (fr)
DE2548939C2 (de) Verfahren und Vorrichtung zum Stranggießen von Bändern
DE69323922T2 (de) Verfahren und Vorrichtung zum kontinuierlichen Giessen eines metallischen Bandes
EP0832989B1 (fr) Procédé et appareil pour fabriquer des barres métalliques revêtues, en particulier des bandes métalliques
DE3627196C2 (fr)
EP0814926B1 (fr) Passage dans le fond d'un recipient de coulee par retournement
DE19852275C2 (de) Anlage und Verfahren zum Bandgießen
WO1999059750A1 (fr) Dispositif et procede de coulee de metal, proche des cotes finales
EP0777757A1 (fr) Systeme de coulee par inversion avec cristallisateur
EP0832990B1 (fr) Procédé pour fabriquer des barres metalliques revêtues, en particulier de bandes en acier
DE60316568T3 (de) Bandtemperaturregelvorrichtung in einer kontinuierlichen bandgiessanlage
DD284175A5 (de) Verfahren zum kuehlen eines metallischen gegenstandes waehrend des stranggiessens
EP3993921A1 (fr) Acheminement de matière fondue pour installations de coulée en bande
DE3856161T2 (de) Verfahren und vorrichtung zum direkten giessen von metall zur bildung langer körper
EP0208890B1 (fr) Procédé de coulée continue d'un lingot métallique, en particulier d'une bande ou d'un profil, et installation pour réaliser ce procédé
EP0045365A1 (fr) Dispositif pour introduire le métal fondu dans un moule de coulée continu dont les parois sont mobiles
DE19826277A1 (de) Gießen von Stahlband

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: 19971010

AK Designated contracting states

Kind code of ref document: A2

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

AKX Designation fees paid

Free format text: AT BE DE FR GB IT NL

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SMS DEMAG AG

17Q First examination report despatched

Effective date: 20000808

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59711785

Country of ref document: DE

Date of ref document: 20040826

Kind code of ref document: P

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

Effective date: 20050422

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

Ref country code: DE

Payment date: 20070921

Year of fee payment: 11

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

Ref country code: AT

Payment date: 20070917

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: 20070914

Year of fee payment: 11

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

Ref country code: NL

Payment date: 20070913

Year of fee payment: 11

Ref country code: IT

Payment date: 20070925

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: 20071004

Year of fee payment: 11

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

Ref country code: FR

Payment date: 20070914

Year of fee payment: 11

BERE Be: lapsed

Owner name: *SMS DEMAG A.G.

Effective date: 20080930

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

Effective date: 20080919

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: 20090401

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

Effective date: 20090401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090529

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: 20080930

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

Effective date: 20080919

Ref country code: DE

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

Effective date: 20090401

Ref country code: AT

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

Effective date: 20080919

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: 20080930

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

Ref country code: GB

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

Effective date: 20080919