EP1858662B1 - Verfahren zum stranggiessen eines metalls mit verbesserter mechanischer festigkeit und durch das verfahren erhaltenes produkt - Google Patents

Verfahren zum stranggiessen eines metalls mit verbesserter mechanischer festigkeit und durch das verfahren erhaltenes produkt Download PDF

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Publication number
EP1858662B1
EP1858662B1 EP06701517A EP06701517A EP1858662B1 EP 1858662 B1 EP1858662 B1 EP 1858662B1 EP 06701517 A EP06701517 A EP 06701517A EP 06701517 A EP06701517 A EP 06701517A EP 1858662 B1 EP1858662 B1 EP 1858662B1
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EP
European Patent Office
Prior art keywords
nozzle
metal
nanoparticles
ceramic
continuous casting
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.)
Not-in-force
Application number
EP06701517A
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English (en)
French (fr)
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EP1858662A1 (de
Inventor
Paul Naveau
Astrid De Ro
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Centre de Recherches Metallurgiques CRM ASBL
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Centre de Recherches Metallurgiques CRM ASBL
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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
    • B22D11/108—Feeding additives, powders, or the like

Definitions

  • the present invention relates to a new process for the continuous casting of a molten metal, in particular steel, to obtain an intermediate product such as slab, billet, wire, etc., before further thermomechanical treatment such as rolling, continuous annealing, etc., so that its chemical composition has been modified by addition of elements, in order to give it a higher mechanical strength.
  • the invention also relates to the product with improved mechanical characteristics obtained by the process.
  • the technique of continuous casting of steel is well known. It essentially consists in supplying, with molten steel coming from a ladle or a tundish , a cooled copper or copper alloy mold, called a continuous casting mold, the latter being open. at its lower end, and to extract through this opening an ingot in the form of a continuous strand partially solidified.
  • the molten steel is introduced into the mold by means of at least one nozzle, that is to say a generally tubular element disposed between the tundish and the mold.
  • the lower end of the nozzle is usually provided with one or two outlets located in the axis of the nozzle or laterally, and opens under the free level of liquid steel present in the mold.
  • nozzles for obtaining a better cooling of the superheated liquid steel from the tundish.
  • the goal is to obtain pasty steel at the inlet of the mold.
  • These nozzles may in particular have a heat exchanger consisting of a water-cooled copper tube or a deflector or dome. It acts to force the superheated steel to flow in a thin layer along the walls of the nozzle, which significantly increases the heat exchange surface.
  • the cooling of the conduit ensures the elimination of the overheating of the steel and causes the appearance of a solid fraction which makes the pasty steel at its entrance into the mold.
  • Another evolution, described in the patent EP-B-605 379 relates to the injection into the hollow jet of a certain quantity of finely divided metallic material, using as vector a non-oxidizing gas at a slight excess pressure with respect to the atmospheric pressure, to prevent any entry of air.
  • the aim is to obtain, as the case may be, a refinement of the solidification structure by creating new solidification nuclei or a modification of the basic chemical composition of the steel.
  • a continuous casting nozzle rotating jet composed of a vertical duct comprising in its upper part a distributor or dome, whose function is also to divert the metal entering the nozzle towards the inner surface of said duct and which comprises three arms arranged in a star with respect to the axis of the nozzle and inclined relative to the horizontal. These arms are configured to impart to the liquid steel a helical twist movement along the inner wall. The liquid steel then leaves by two lateral openings of the nozzle with a much lower speed than that obtained with a conventional nozzle for the same flow, which improves the quality of the ingots extracted (fewer inclusions and gas bubbles) .
  • the continuous casting of steel products of mixed or two-component chemical composition has also attracted a great deal of interest in a large number of specific applications, both for long products and for flat products (eg the silicon content at the slab surface, in order to improve the galvanizing ability of the rolled products, the modification of the surface carbon content of the peritectic steels to improve their flowability, the casting of products whose mechanical properties vary along their thickness, such as a high surface resistance and high ductility to the core, etc.).
  • the term "two-component” refers to products whose chemical composition of steel is different according to the location of the investigated product, for example different in skin relative to the heart.
  • a continuous casting nozzle having in its upper part a dome distributor arranged to separate the liquid steel in two jets, an inner jet and an outer jet, in two physically separated well areas.
  • Finely divided gaseous, liquid or solid material injecting means under the dome in the inner zone allow the formation of a steel of different chemical composition from that of the base steel, poured into the outer zone.
  • thermomechanical treatments aimed at increasing the mechanical properties of a steel, for example by the microstructure (martensite, bainite, etc.) or by endogenous precipitation, have the disadvantage that the structure of the steel
  • the steel finally obtained can be altered by a thermal after-treatment of the product (eg welding, galvanizing, etc.). It would therefore be desirable, at least in certain cases, to be able to directly cast a product whose structure and consequently the mechanical properties are stable throughout the subsequent treatments that the product could undergo.
  • the document DE-A-102 53 577 relates to a process for manufacturing dispersion-hardened ferrous products, wherein a powder is mixed with the ferrous products.
  • the process according to the invention is characterized in that the said powder is composed of ceramic particles whose diameter is between 1 and 200 nm and in that controlled solidification is effected by means of a supercooling of the fusion.
  • the present invention aims to provide a solution that makes it possible to overcome the disadvantages of the state of the art.
  • the present invention is aimed in particular at providing a continuous casting process which makes it possible to obtain slabs or billets of composition adapted to give the steel a higher mechanical strength before rolling.
  • the invention aims in particular to obtain a steel of homogeneous chemical composition and / or structure stabilized vis-à-vis a rolling process and / or thermomechanical treatment after casting.
  • a particular object of the present invention is to use the hollow jet technique to inject finely divided ceramic particles through the continuous casting nozzle.
  • a first object of the present invention relates to a method for the continuous casting of a metal in the form of a hollow jet in a nozzle located between a ladle or a tundish and a continuous casting mold, said nozzle comprising in its upper part a distributing member capable of deflecting at least a portion of the liquid metal arriving at the inlet of the nozzle to an inner wall of the nozzle before it enters the ingot mold, said method comprising an injection into a interior volume of the hollow jet of finely divided solid material comprising nanoparticles of technical ceramic, of characteristic size less than 200 nm, and preferably 100 nm, said nanoparticles being agglomerated, prior to their injection into the nozzle, into microparticles of size between 10 and 1000 microns, and preferably between 100 and 200 microns, characterized in that said nanoparticles are agglomerated microparticles in a metal matrix whether or not the same metal as the cast metal.
  • the technical ceramic nanoparticles comprise nanoparticles of oxides, nitrides, carbides; borides, silicides and / or compounds thereof.
  • the oxides are Al 2 O 3 , TiO 2 , SiO 2 , MgO, ZrO 2 or Y 2 O 3 .
  • the size of the nanoparticles is between 10 and 100 nm.
  • the amount of nanoparticles incorporated in the liquid metal is less than or equal to 5 percent, preferably between 0.1 and 1 percent, by weight of cast metal.
  • the ceramic nanoparticles injected into the interior volume of the hollow jet of the nozzle are suspended in a non-oxidizing gas, preferably argon, said gas being slightly overpressured by relative to the atmospheric pressure and at most equal to the static pressure of the cast metal at the inlet thereof in the mold.
  • a non-oxidizing gas preferably argon
  • the agglomerated ceramic nanoparticles are injected into the interior volume of the hollow jet of the nozzle by means of a mechanical transport device such as a worm.
  • the nanoparticles are agglomerated, prior to their injection into the nozzle, into microparticles of size essentially between 10 and 1000 microns, preferably between 100 and 200 microns.
  • the nanoparticles Prior to injection into the nozzle, are agglomerated in a metal matrix whether or not the same metal as the cast metal.
  • the cast metal is liquid steel and the metal matrix is an iron matrix or the metal matrix comprises an alloy metal other than iron.
  • the agglomeration of the nanoparticles is obtained by mixing nanoparticles of ceramic with micrometric particles of iron, that is to say of size greater than 10 microns, and preferably less than 20 microns.
  • said mixing is carried out by prior mixing in a slip, followed by drying, milling, isostatic pressing and regrinding.
  • said mixture is produced by a high-energy "mechanical alloying" type beating to obtain an insertion of ceramics into the iron matrix.
  • the hollow jet nozzle used is of the rotating jet type, that is to say composed of a vertical duct comprising in its upper part a dome-shaped distributor member, whose function is to deflecting the liquid metal entering the nozzle towards the inner surface of said duct and which comprises a plurality of arms arranged symmetrically in a star with respect to the axis of the nozzle and inclined relative to the horizontal, said arms being configured to print at the liquid steel a helical twist movement along the inner wall of the nozzle.
  • the hollow jet nozzle used has in its upper part a dome-shaped distributor device designed to separate the liquid metal in two jets, an internal jet and an external jet, in two physically separated zones, injection of ceramic nanoparticles under the dome in the inner zone allowing the formation of a metal of chemical composition different from that of the base metal, cast in the external zone.
  • the injection of ceramic nanoparticles can be performed in the outer zone of the nozzle.
  • a second subject of the present invention relates to a metal, preferably a steel, of high mechanical strength which is after casting in the form of a continuous strand ingot at the outlet of a continuous casting mold, specially obtained at by the method described above, and comprising less than one percent by weight of technical ceramic homogeneously distributed in at least a portion of the ingot.
  • the idea underlying the invention is to develop a steel hardened by a fine dispersion of ceramic particles giving the steel properties stable and unalterable by the heat treatment or later.
  • the addition of particles in the liquid metal is carried out directly at the level of the continuous casting nozzle, since this, in the embodiments generally employed and described above, generally comprises means for the introduction alloying elements or oxides in at least a fraction of the liquid metal passing through the nozzle.
  • the added particles are ceramic particles. It is known to those skilled in the art that they are called technical ceramics or industrial class of manufactured materials that are non-metallic and inorganic. They are divided into two major families: oxides (for example Al 2 O 3 , TiO 2 , SiO 2 , MgO, ZrO 2 , Y 2 O 3 , etc.) and non-oxides (nitrides, carbides, borides, silicides). , etc.).
  • the nanometric nature of the inclusion particles is indeed essential for the reinforcement of the product. Conversely, micrometric inclusions are defects, heterogeneities that make the product more fragile.
  • the amounts of nanoparticles added to the liquid steel are 1 percent by weight.
  • the wettability of the particles in the liquid steel is the most important criterion for the choice of particles and the resolution of this technical problem is at the heart of the present invention.
  • a homogeneous distribution of the nanoparticles in the liquid steel is essential, which excludes a confinement of the powders injected on the surface of the liquid steel.
  • the particles can advantageously be agglomerated to a size of 100-200 ⁇ m in order to be injected through the HJN nozzle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Powder Metallurgy (AREA)
  • Forging (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Claims (19)

  1. Verfahren zum Stranggießen eines Metalls in Form eines hohlen Strahls in einer Düse, die sich zwischen einer Gießpfanne oder einem Verteilerkorb und einer Stranggussform befindet, wobei die Düse in ihrem oberen Teil ein Verteilerorgan umfasst, das dazu in der Lage ist, mindestens einen Teil des flüssigen Metalls, dass am Eintritt der Düse ankommt, auf eine Innenwand der Düse umzuleiten, bevor dieses in die Stranggussform eindringt, wobei das Verfahren eine Injektion in ein inneres Volumen des hohlen Strahls aus festem, fein aufgeteiltem Material umfasst, umfassend Nanopartikel aus technischer Keramik mit einer Größe, die typischerweise unter 200 nm liegt, wobei die Nanopartikel vor ihrer Injektion in die Düse zu Mikropartikeln mit einer Größe zwischen 10 und 1000 Mikron agglomeriert werden, dadurch gekennzeichnet, dass die Nanopartikel in einer Metallmatrix zu Nanopartikeln agglomeriert werden.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die charakteristische Größe der Nanopartikel unter 100 nm liegt.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Größe der Nanopartikel zwischen 10 und 100 nm liegt.
  4. Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Größe der Mikropartikel zwischen 100 und 200 Mikron liegt.
  5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Metallmatrix aus dem gleichen Metall wie das Gussmetall besteht.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Nanopartikel aus technischer Keramik Nanopartikel von Oxiden, Nitriden, Kohlenstoffen, Boriden, Siliziden und/oder Zusammensetzungen dieser umfassen.
  7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Oxide Al2O3, TiO2, SiO2, MgO, ZrO2 oder Y2O3 sind.
  8. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Menge der Nanopartikel, die in das flüssige Metall eingeschlossen ist, zwischen 0,1 und 1 Gew.% des Gussmetalls ist.
  9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die agglomerierten Keramiknanopartikel, die in das Innenvolumen des hohlen Strahls der Düse injiziert wurden, in einem nicht oxidierendem Gas in Suspension sind, wobei das Gas bezüglich des atmosphärischen Drucks unter leichtem Überdruck und höchstens gleich dem statischen Druck des Gussmetalls beim Eintritt in die Stranggusssform ist.
  10. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die agglomerierten Keramiknanopartikel in das Innenvolumen des hohlen Strahls der Düse mithilfe einer mechanischen Transportvorrichtung injiziert werden.
  11. Verfahren nach einem der vorhergehenden Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Gussmetall flüssiges Metall und die Metallmatrix eine Eisenmatrix ist.
  12. Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass die Metallmatrix ein Metall einer anderen Legierung als Eisen umfasst.
  13. Verfahren nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass die Agglomeration der Nanopartikel durch die Mischung von Keramiknanopartikeln mit mikrometrischen Eisenpartikeln, d.h. mit einer Größe über 10 Mikron, erhalten wird.
  14. Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass die mikrometrischen Partikel aus Eisen eine Größe unter 20 Mikron aufweisen.
  15. Verfahren nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass die Mischung durch eine vorherige Mischung in einem Schlicker durchgeführt wird, gefolgt von einem Trocknen, einem Zermahlen, einem isostatischen Pressen und einem Nachmahlen.
  16. Verfahren nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass die Mischung durch ein Schlagen mit hoher Energie erfolgt, um einen Einschluss der Keramiken in die Eisenmatrix zu erhalten.
  17. Verfahren nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass die verwendete Düse mit hohlem Strahl des Typs Drehstrahl ist, d.h. aus einer vertikalen Leitung zusammengesetzt ist, die in ihrem oberen Teil ein Verteilerorgan mit Kuppel umfasst, deren Funktion es ist, das flüssige Metall, das in die Düse eintritt, auf die Innenfläche der Leitung umzuleiten, und die eine Veilzahl von Armen umfasst, die symmetrisch sternförmig bezüglich der Achse der Düse angeordnet und bezüglich der Horizontale geneigt sind, wobei die Arme konfiguriert sind, um das flüssige Stahl in eine drehende, schraubenförmige Bewegung entlang der Innenwand der Düse zu versetzen.
  18. Verfahren nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass die verwendete Düse mit hohlem Strahl in ihrem oberen Teil ein Verteilerorgan mit Kuppel umfasst, das dazu entworfen ist, das flüssige Metall in zwei Strahlen zu teilen, einen inneren Strahl und einen äußeren Strahl, in zwei physisch gut unterteilten Bereichen, wobei die Injektion von Keramiknanopartikeln unter der Kuppel in den inneren Bereich die Bildung eines Metalls mit einer chemischen Zusammensetzung ermöglicht, die von derjenigen des Grundmetalls, gegossen im äußeren Bereich, verschieden ist.
  19. Verfahren nach Anspruch 18, dadurch gekennzeichnet, dass die Injektion von Keramiknanopartikeln alternativ im äußeren Bereich erfolgt.
EP06701517A 2005-03-16 2006-01-19 Verfahren zum stranggiessen eines metalls mit verbesserter mechanischer festigkeit und durch das verfahren erhaltenes produkt Not-in-force EP1858662B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2005/0139A BE1016550A3 (fr) 2005-03-16 2005-03-16 Procede pour couler en continu un metal a resistance mecanique amelioree et produit obtenu par le procede.
PCT/BE2006/000003 WO2006096942A1 (fr) 2005-03-16 2006-01-19 Procede pour couler en continu un metal a resistance mecanique amelioree et produit obtenu par le procede

Publications (2)

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EP1858662A1 EP1858662A1 (de) 2007-11-28
EP1858662B1 true EP1858662B1 (de) 2010-10-27

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EP06701517A Not-in-force EP1858662B1 (de) 2005-03-16 2006-01-19 Verfahren zum stranggiessen eines metalls mit verbesserter mechanischer festigkeit und durch das verfahren erhaltenes produkt

Country Status (10)

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US (1) US20090266506A1 (de)
EP (1) EP1858662B1 (de)
JP (1) JP4906840B2 (de)
KR (1) KR101257326B1 (de)
AT (1) ATE485906T1 (de)
BE (1) BE1016550A3 (de)
CA (1) CA2599440C (de)
DE (1) DE602006017811D1 (de)
ES (1) ES2351886T3 (de)
WO (1) WO2006096942A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9004150B2 (en) 2005-03-16 2015-04-14 Centre de Recherches Metallurgiques ASBL—Centrum Voor Research in de Metallurgie VZW Method for continuous casting of a metal with improved mechanical strength and product obtained by said method
BE1017392A3 (fr) * 2006-12-12 2008-08-05 Ct Rech Metallurgiques Asbl Busette a jet creux pour coulee continue d'acier.
EP2047926A1 (de) 2007-10-10 2009-04-15 Ugine & Alz France Verfahren zur Herstellung von rostfreiem Stahl mit feinen Carbonitriden, und Produkt, das mit diesem Verfahren hergestellt wird
KR101269451B1 (ko) * 2011-06-27 2013-05-30 연세대학교 산학협력단 산소 원자 분산된 금속 기지 복합재 및 그 제조 방법
PL2830792T3 (pl) * 2012-03-28 2019-08-30 Arcelormittal Sposób ciągłego odlewania metalu
CN103243194B (zh) * 2013-05-31 2015-01-21 安徽工业大学 一种向钢液中加入纳米粒子以优化钢组织的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656551A1 (fr) * 1990-01-04 1991-07-05 Pechiney Recherche Procede et dispositif pour la coulee continue de composites a matrice metallique renforcee par des particules d'un materiau ceramique refractaire.
JP2863675B2 (ja) * 1992-09-01 1999-03-03 井上 明久 粒子強化複合材の製造方法
BE1006567A6 (fr) * 1992-12-28 1994-10-18 Centre Rech Metallurgique Procede de coulee d'un metal en phase pateuse.
JP3426425B2 (ja) * 1995-10-05 2003-07-14 新日本製鐵株式会社 耐火圧延形鋼用鋳片およびそれを素材とする耐火用圧延形鋼の製造方法
US6162530A (en) * 1996-11-18 2000-12-19 University Of Connecticut Nanostructured oxides and hydroxides and methods of synthesis therefor
BE1012037A3 (fr) * 1998-06-11 2000-04-04 Centre Rech Metallurgique Busette pour couler en continu de l'acier.
US6251159B1 (en) * 1998-12-22 2001-06-26 General Electric Company Dispersion strengthening by nanophase addition
BE1013745A3 (fr) * 2000-10-10 2002-07-02 Ct De Rech S Metallurg Ass San Procede et dispositif pour couler en continu de l'acier a composition chimique mixte.
DE10253577B4 (de) * 2002-11-15 2011-05-19 Ab Skf Verfahren zur Herstellung eines dispersionsgehärteten Eisenwerkstoffs
US7235118B2 (en) * 2003-04-16 2007-06-26 National Research Council Of Canada Process for agglomeration and densification of nanometer sized particles

Also Published As

Publication number Publication date
BE1016550A3 (fr) 2007-01-09
WO2006096942A1 (fr) 2006-09-21
KR101257326B1 (ko) 2013-04-24
KR20070110368A (ko) 2007-11-16
DE602006017811D1 (de) 2010-12-09
CA2599440A1 (en) 2006-09-21
JP4906840B2 (ja) 2012-03-28
JP2008532772A (ja) 2008-08-21
CA2599440C (en) 2014-08-19
US20090266506A1 (en) 2009-10-29
EP1858662A1 (de) 2007-11-28
ES2351886T3 (es) 2011-02-11
ATE485906T1 (de) 2010-11-15

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