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DE102012017684A1 - Continuous casting of non-ferrous metals, comprises casting a melt of non-ferrous metal on movable metallic sheath, which is made of band, subjecting band edges to continuous welding to form melt, and wrapping continuous cast block - Google Patents

Continuous casting of non-ferrous metals, comprises casting a melt of non-ferrous metal on movable metallic sheath, which is made of band, subjecting band edges to continuous welding to form melt, and wrapping continuous cast block Download PDF

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DE102012017684A1
DE102012017684A1 DE201210017684 DE102012017684A DE102012017684A1 DE 102012017684 A1 DE102012017684 A1 DE 102012017684A1 DE 201210017684 DE201210017684 DE 201210017684 DE 102012017684 A DE102012017684 A DE 102012017684A DE 102012017684 A1 DE102012017684 A1 DE 102012017684A1
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continuous
melt
band
casting
ferrous
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Anmelder Gleich
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • B22D19/04Casting in, on, or around objects which form part of the product for joining parts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

Continuous casting of non-ferrous metals, comprises casting a melt (S) of a non-ferrous metal on a continuously formed, movable metallic sheath, which is made of at least one band (B), subjecting the band edges to continuous welding to form the melt and wrapping a continuous cast block. The sheathing of a low carbon (non-alloy) steel is performed and is subjected to the removal at the end of processing of the continuously cast product.

Description

Die Erfindung betrifft Verfahren zum Stranggießen der NE-Metalle.The invention relates to methods for continuous casting of non-ferrous metals.

Es sind Verfahren bekannt, die für Stranggießen der Verbundgussblöcke vorausgesetzt sind, Oberfläche und Kern derer aus unterschiedlichen Metallen ausgeführt sind:
Patentschriften WO: 95/26241 , EP: 0 852 165 ,
von Deutschland: 3 440 237 , 3 440 235 , 3 440 234 , 3 406 730 , 3 032 789 , 1 508 876 , 742 180 , 69 909 332 ,
von USA: 507 709 4 , 4 945 974 , 4 529 628 , 4 326 579 , 4 323 419 , 4 321 289 , 4 326 579 , 4 323 419 , 4 321 289 , 4 224 978 , 4 177 326 , 4 171 394 , 4 152 471 , 3 971 123 , 3 479 210 , 3 457 984 , 3 349 830 , 3 201 275 , 2 931 082 , 2 055 980 ,
von Franckreich: 884 516 , von Schweiz: 203 489 .
Methods are known which are required for continuous casting of the composite cast blocks, surface and core of which are made of different metals:
patents WO: 95/26241 . EP: 0 852 165 .
from Germany: 3 440 237 . 3 440 235 . 3 440 234 . 3 406 730 . 3 032 789 . 1 508 876 . 742 180 . 69 909 332 .
from USA: 507 709 4 . 4,945,974 . 4 529 628 . 4,326,579 . 4,323,419 . 4,321,289 . 4,326,579 . 4,323,419 . 4,321,289 . 4,224,978 . 4 177 326 . 4,171,394 . 4,152,471 . 3,971,123 . 3 479 210 . 3,457,984 . 3 349 830 . 3,201,275 . 2 931 082 . 2 055 980 .
from Franconia: 884 516 , from Switzerland: 203 489 ,

Es sind folgende Schwierigkeiten bei Verarbeitung der Stranggussblöcke der NE-Metalle bekannt:

  • – kleine Querschnittsabnahmen,
  • – Nutzung teuerer Schutzatmosphären bei Wärmebehandlung und bei Erwärmung zum Warmwalzen wegen aktiver Reaktion der NE-Metalle mit Gasen der Atmosphäre,
  • – Verwendung des Homogenisierungsglühens vor erstem Walzen,
  • – Verlust des NE-Metalls bei dem Putzen/Hobeln der Gussblöcke, dem Beizen von Bunden und von Rollen,
  • – schlechte Schweißbarkeit der NE-Metalle – im Falle des Schweißens der Umhüllung.
The following difficulties in processing the continuous cast blocks of non-ferrous metals are known:
  • - small cross-sectional decreases,
  • Use of expensive protective atmospheres during heat treatment and heating for hot rolling due to active reaction of the non-ferrous metals with gases of the atmosphere,
  • Use of homogenizing annealing before first rolling,
  • Loss of non-ferrous metal in the cleaning / planing of cast blocks, pickling of coils and rolls,
  • - poor weldability of non-ferrous metals - in case of welding the cladding.

Technisches Ergebnis vorgeschlagener Idee findet Ausdruck in der Erhöhung von Produktivität der Verarbeitung der Stranggussblöcke.The technical result of the proposed idea finds expression in increasing the productivity of processing the continuous casting blocks.

Dieses Ergebnis wird dadurch erreicht, dass Herstellungsverfahren des Stranggießens der NE-Metalle auf folgende Weise verwirklicht wird:
Gießen der Schmelze eines NE-Metalls erfolgt auf/in eine kontinuierlich formierte, sich bewegliche metallische Umhüllung, die mindestens aus einem Band ausgeführt ist, wobei werden die Bandkanten (Bänderkanten) kontinuierlichem Schweißen unterzogen, dabei bilden die Schmelze und die Umhüllung einen Stranggussblock, und dadurch gekennzeichnet, dass die Umhüllung aus einem niedriggekohlten (unlegierten) Stahl ausgeführt ist, und sie der Entfernung am Ende der Verarbeitung des Stranggussproduktes unterzogen wird.
This result is achieved by realizing the production process of continuous casting of the non-ferrous metals in the following manner:
Casting the melt of a non-ferrous metal takes place on / in a continuously formed, movable metallic casing, which is made of at least one band, wherein the band edges (strip edges) are subjected to continuous welding, thereby forming the melt and the casing a continuous casting block, and characterized in that the enclosure is made of a low carbon (unalloyed) steel and subjected to removal at the end of processing of the continuous casting product.

Die Kontur der Umhüllung ist geschlossen, weil die Bandkanten (Bänderkanten) kontinuierlichem Schweißen unterzogen werden.The contour of the envelope is closed because the band edges (band edges) undergo continuous welding.

Die Entfernung der Umhüllung erfolgt bei letztem Beizen des Bunds oder der Rolle gerade vor dem letzten Drahtziehen bzw. Walzen, dabei Beizlösung (billigste Beizlösung: 10%-H2SO4) enthält Beizinhibitor nicht – zwecks der Entfernung der stählernen Umhüllung.The removal of the coating takes place at the last pickling of the collar or roll just before the last wire drawing or rolling, while pickling solution (cheapest pickling solution: 10% -H 2 SO 4 ) contains pickling inhibitor not - for the purpose of removing the steel casing.

Das Schweißen der Bandkontur – Stromübertragung an die längsnahtgeschweißte Umhüllung – erfolgt entweder durch stromleitenden Kontakt oder Wirbelströme. Wenn dabei ein Nahtgrat stattfindet, soll er entfernt werden.The welding of the strip contour - current transmission to the longitudinally welded enclosure - is carried out either by current-conducting contact or eddy currents. If there is a seam burr, it should be removed.

Am Anfang des Einfüllens der Schmelze soll eine Stirnkontur der Umhüllung aus dem/den zu schweißenden Band/Bändern ausgeführt werden.At the beginning of the filling of the melt to a front contour of the envelope of the / to be welded band / bands are performed.

Ein Beispiel der Verwirklichung vorgeschlagener Idee:

  • 1. Auswickeln eines Bands mit der Bildung seines Vorrats zur Gewährleistung ununterbrochenen Schweißens; das Band: 1 mm-Dicke und 500 mm-Breite aus unlegiertem Stahl mit Gehalt an C = 0,06%.
  • 2. Bearbeitung der Bandkanten zum Schweißen.
  • 3. Folgegemäßes Formen des Bandes zu einem Zylinder.
  • 4. Widerstandsschweißen der Bandkanten mit Herausbildung einer geschlossenen ringförmigen Hülle mit Außendurchmesser 160 mm.
  • 5. Gießen der Schmelze eines NE-Metalls in die geschweißte Umhüllung.
  • 6. Entfernung des Schweißgrats.
  • 7. Das Walzen bekommenen Stranggussblocks bei flüssigem (1/4 seines Querschnitts) Kern mit Abnahmegraden: 35% + 30% + 25% in 3 Walzengerüsten.
An example of the realization of proposed idea:
  • 1. unwrapping a tape with the formation of its stock to ensure uninterrupted welding; the strip: 1 mm thick and 500 mm wide, carbon steel grading C = 0.06%.
  • 2. Processing of the strip edges for welding.
  • 3. Subsequent shaping of the band to a cylinder.
  • 4. Resistance welding of the strip edges with formation of a closed annular shell with an outer diameter of 160 mm.
  • 5. pour the melt of a non-ferrous metal into the welded enclosure.
  • 6. Removal of the weld burr.
  • 7. Rolling continuously cast block with liquid (1/4 of its cross-section) core with grading grades: 35% + 30% + 25% in 3 roll stands.

Auf den sind drei Herstellungsverfahren dargestellt.On the - Three production processes are shown.

Ihr Prinzip beruht sich auf kontinuierliches Formwalzen des/der stählernen Bands/Bänder zu einem geschlossenen Hohlschlitzkörper. Seine Kanten werden durch Schweißnaht/Schweißnähten verbunden.Their principle is based on continuous forming rolling of the / the steel bands / bands to a closed hollow slot body. Its edges are connected by welds / welds.

Auf der ist ein Herstellungsverfahren runder Stranggussblöcke SB, auf den und sind zwei Herstellungsverfahren rechteckiger Stranggussblöcke SB.On the is a manufacturing process of round billets SB, to which and are two production methods of rectangular continuous cast blocks SB.

Auf den fließt Schmelze S eines NE-Metalls aus einem Zwischenbehälter Z in einen Hohlkörper H, der mit Druckrollen DR aus einem stählernen Band B ( ) oder aus zwei stählernen Bändern B ( und ) gebildet wird.On the - melt S of a non-ferrous metal flows from an intermediate container Z into a hollow body H, which is provided with pressure rollers DR from a steel band B (FIG. ) or two steel bands B ( and ) is formed.

Bänderkanten K sollen so vorbereitet sein, um sie mit Rollenelektroden E sicher schweißen werden zu können. Der Grat G ist mit Abschneidrollen AR zu entfernen.Ribbon edges K should be prepared so that they can be welded securely with roller electrodes E. to be able to. The burr G is to be removed with cut-off rollers AR.

Für das Gießen von Ti-Al- und Cu-Legierungen ist es sinnvoll/notwendig, den Stranggussblock SB abzukühlen: er ist in den Kühlkammern W mit Wasser besprüht.For the casting of Ti-Al and Cu alloys, it is useful / necessary to cool the continuous casting block SB: it is sprayed in the cooling chambers W with water.

Das vorgeschlagene Verfahren zum Stranggießen ist für das Gießen der NE-Metalle vorausgesetzt, Solidustemperatur derer weniger als Solidustemperatur des niedriggekohlten Stahls: Al, Ti-Al, Mg, Li und Cu.The proposed continuous casting method is presupposed for the casting of the non-ferrous metals, solidus temperature of which less than the solidus temperature of the low-carbon steel: Al, Ti-Al, Mg, Li and Cu.

Das vorgeschlagene Verfahren hat auch folgende Vorteile:

  • – Verwendung des Homogenisierungsglühens vor erstem Walzen entfällt,
  • – kein Verlust des NE-Metalls bei dem Putzen/Hobeln der Gussblöcke, dem Beizen von Bunden und von Rollen,
  • – kein Bedarf auf Nutzung der Schutzatmosphäre bei der Verarbeitung der Stranggussblöcke, weil kein Kontakt des NE-Metalls mit der Atmosphäre dank der stählernen Umhüllung stattfindet.
The proposed method also has the following advantages:
  • Use of homogenizing annealing prior to first rolling is eliminated
  • No loss of non-ferrous metal in the cleaning / planing of the ingots, the pickling of bundles and rolls,
  • No need to use the protective atmosphere in the processing of the continuous casting blocks, because no contact of the non-ferrous metal with the atmosphere takes place thanks to the steel casing.

Die nach der vorgeschlagenen Idee hergestellten Stranggussblöcke kann man

  • – mit mehrmals größerem Tempo walzen und
  • – mit wesentlich größerer Querschnittsabnahme deformieren dank dem Nichtvorhandensein der Anforderungen an Qualität der Oberfläche: ohnehin sie ist zu entfernen und dank dem, dass die Gefahr des Durchbruchs der Umhüllung fehlt.
The continuous casting blocks produced according to the proposed idea can be obtained
  • - with several times faster speed and
  • - deform with a much greater reduction in cross-section, thanks to the absence of surface quality requirements: anyway, they can be removed and thanks to the fact that the risk of breaking the envelope is missing.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • WO 95/26241 [0002] WO 95/26241 [0002]
  • EP 0852165 [0002] EP 0852165 [0002]
  • DE 3440237 [0002] DE 3440237 [0002]
  • DE 3440235 [0002] DE 3440235 [0002]
  • DE 3440234 [0002] DE 3440234 [0002]
  • DE 3406730 [0002] DE 3406730 [0002]
  • DE 3032789 [0002] DE 3032789 [0002]
  • DE 1508876 [0002] DE 1508876 [0002]
  • DE 742180 [0002] DE 742180 [0002]
  • DE 69909332 [0002] DE 69909332 [0002]
  • US 5077094 [0002] US 5077094 [0002]
  • US 4945974 [0002] US 4945974 [0002]
  • US 4529628 [0002] US 4529628 [0002]
  • US 4326579 [0002, 0002] US 4326579 [0002, 0002]
  • US 4323419 [0002, 0002] US 4323419 [0002, 0002]
  • US 4321289 [0002, 0002] US 4321289 [0002, 0002]
  • US 4224978 [0002] US 4224978 [0002]
  • US 4177326 [0002] US 4177326 [0002]
  • US 4171394 [0002] US 4171394 [0002]
  • US 4152471 [0002] US 4152471 [0002]
  • US 3971123 [0002] US 3,971,123 [0002]
  • US 3479210 [0002] US 3479210 [0002]
  • US 3457984 [0002] US 3,457,984 [0002]
  • US 3349830 [0002] US 3349830 [0002]
  • US 3201275 [0002] US 3201275 [0002]
  • US 3931082 [0002] US 3931082 [0002]
  • US 2055980 [0002] US 2055980 [0002]
  • FR 884516 [0002] FR 884516 [0002]
  • CH 203489 [0002] CH 203489 [0002]

Claims (1)

Verfahren zum Stranggießen der NE-Metalle beinhaltet Gießen der Schmelze eines NE-Metalls auf/in eine kontinuierlich formierte, sich bewegliche metallische Umhüllung, die mindestens aus einem Band ausgeführt ist, wobei werden die Bandkanten (Bänderkanten) kontinuierlichem Schweißen unterzogen, dabei bilden die Schmelze und die Umhüllung einen Stranggussblock, und dadurch gekennzeichnet, dass die Umhüllung aus einem niedriggekohlten (unlegierten) Stahl ausgeführt ist, und sie der Entfernung am Ende der Verarbeitung des Stranggussproduktes unterzogen wird.A method of continuously casting the non-ferrous metals involves casting the melt of a non-ferrous metal on / into a continuously formed, movable metallic casing made of at least one strip, whereby the strip edges are subjected to continuous welding, thereby forming the melt and the enclosure comprises a continuous casting block, and characterized in that the enclosure is made of a low carbon (unalloyed) steel and subjected to removal at the end of processing of the continuous casting product.
DE201210017684 2012-08-31 2012-08-31 Continuous casting of non-ferrous metals, comprises casting a melt of non-ferrous metal on movable metallic sheath, which is made of band, subjecting band edges to continuous welding to form melt, and wrapping continuous cast block Ceased DE102012017684A1 (en)

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CH203489A (en) 1937-03-24 1939-03-15 Kreidler Alfred Method and device for continuous casting of strands.
FR884516A (en) 1939-07-06 1943-08-19 Rener Metallwerke Ag Du Method and device for manufacturing plated metal plates
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WO1995026241A1 (en) 1994-03-29 1995-10-05 Reynolds Metals Company Twin roll cast clad material
EP0852165A2 (en) 1996-12-11 1998-07-08 Sms Schloemann-Siemag Aktiengesellschaft Method and apparatus for producing of coated continuous casting products
DE69909332T2 (en) 1999-04-07 2004-05-27 Giovanni Arvedi INTEGRATED CONTINUOUS CONTINUOUS CASTING AND INLINE HOT ROLLING METHOD AND CORRESPONDING METHOD WITH INTERLOCKING AND UNWINDING OF THE STRIP

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2055980A (en) 1933-04-12 1936-09-29 Alfred J Liebmann Method of casting or molding metals
CH203489A (en) 1937-03-24 1939-03-15 Kreidler Alfred Method and device for continuous casting of strands.
FR884516A (en) 1939-07-06 1943-08-19 Rener Metallwerke Ag Du Method and device for manufacturing plated metal plates
DE742180C (en) 1939-11-09 1943-11-24 Velmet Veltener Leichtmetall G Chill mold for casting straights for plate-shaped bodies
US3201275A (en) 1961-12-21 1965-08-17 Gen Electric Method and apparatus for meniscus coating
US3349830A (en) 1963-11-21 1967-10-31 Sulzer Ag Method of making a casting mold
DE1508876A1 (en) 1965-03-08 1969-11-13 Siderurgie Fse Inst Rech Continuous casting process and equipment for carrying out the process
US3457984A (en) 1965-10-01 1969-07-29 Kawasaki Steel Co Process and apparatus for the continuous casting of steel
US3479210A (en) 1968-12-04 1969-11-18 Nat Steel Corp Method and apparatus for controlling coating metal temperature in a hot-dip coating bath
US3931082A (en) 1971-07-27 1976-01-06 Fmc Corporation Microcrystalline polyesters and dispersions thereof
US3971123A (en) 1973-03-05 1976-07-27 Olsson International Inc. Process of solidifying molten metal
US4152471A (en) 1976-03-18 1979-05-01 Armco Steel Corporation Method for continuously contact-coating one side only of a ferrous base metal strip with a molten coating metal
US4177326A (en) 1976-12-17 1979-12-04 Vallourec Usines A Tubes De Lorraine-Escaut Et Vallourec Reunies Process for coating stainless steel with a lead-based alloy and article
US4171394A (en) 1977-11-30 1979-10-16 Inland Steel Company Process of hot-dip galvanizing and alloying
US4224978A (en) 1978-06-19 1980-09-30 Manufacture Metallurgique De Tournus Method of manufacturing composite strips by continuous casting
US4529628A (en) 1979-07-31 1985-07-16 Battelle Memorial Institute Method for the continuous coating of at least one portion of at least one of the faces of a metallic substrate
US4321289A (en) 1979-09-14 1982-03-23 Norddeutsche Affinerie Aktiengesellschaft Method of and apparatus for the cladding of steel sheet or strip with lower melting metals or alloys
US4326579A (en) 1980-01-23 1982-04-27 National-Standard Company Method of forming a filament through melt extraction
US4323419A (en) 1980-05-08 1982-04-06 Atlantic Richfield Company Method for ribbon solar cell fabrication
DE3032789A1 (en) 1980-08-30 1982-04-15 Willi-Friedrich 3384 Liebenburg Oppermann Clad strip made by horizontal continuous casting and rolling - where metal strip is made into rectangular box filled with molten metal and then hot:rolled into clad strip
DE3440234A1 (en) 1983-11-03 1985-05-30 Hema Maschinen- Und Apparateschutz Gmbh, 6453 Seligenstadt Protective covering for parts on machines
DE3406730A1 (en) 1984-02-24 1985-08-29 Mannesmann AG, 4000 Düsseldorf Method and apparatus for the continuous casting of metals, especially steel
DE3440237A1 (en) 1984-11-03 1986-05-22 Mannesmann AG, 4000 Düsseldorf DEVICE FOR CONTINUOUSLY CASTING METALS, ESPECIALLY STEEL
DE3440235A1 (en) 1984-11-03 1986-05-22 Mannesmann AG, 4000 Düsseldorf Process and apparatus for the continuous strip casting of metals, especially steel
US4945974A (en) 1988-02-05 1990-08-07 Reynolds Metals Company Apparatus for and process of direct casting of metal strip
US5077094A (en) 1989-12-11 1991-12-31 Battelle Development Corp. Process for applying a metal coating to a metal strip by preheating the strip in a non-oxidizing atmosphere, passing the strip through a melt pool of the metal coating material, and rapidly cooling the back surface of the strip
WO1995026241A1 (en) 1994-03-29 1995-10-05 Reynolds Metals Company Twin roll cast clad material
EP0852165A2 (en) 1996-12-11 1998-07-08 Sms Schloemann-Siemag Aktiengesellschaft Method and apparatus for producing of coated continuous casting products
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