EP0834363A2 - Method and device for producing a polygonal or profiled section in a continuous casting plant - Google Patents
Method and device for producing a polygonal or profiled section in a continuous casting plant Download PDFInfo
- Publication number
- EP0834363A2 EP0834363A2 EP97116323A EP97116323A EP0834363A2 EP 0834363 A2 EP0834363 A2 EP 0834363A2 EP 97116323 A EP97116323 A EP 97116323A EP 97116323 A EP97116323 A EP 97116323A EP 0834363 A2 EP0834363 A2 EP 0834363A2
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- Prior art keywords
- mold
- continuous casting
- format
- strand
- casting plant
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000007711 solidification Methods 0.000 claims abstract description 6
- 230000008023 solidification Effects 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract 4
- 238000005266 casting Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 5
- 238000007373 indentation Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0406—Moulds with special profile
Definitions
- the invention relates to a process for the production of Rolling long products, especially wire, section steel, bar steel, Rails or the like suitable strands using a Continuous caster with casting mold.
- the invention relates to a Continuous caster with mold to carry out the process.
- the billet continuous casting plants usually pour with an open one Pouring stream between distributor and mold and with oil as a lubricant.
- These continuous casting plants are predominantly for continuous sheet caster with vertically arranged mold, which in turn can be divided into vertical, vertical bend and Circular arc systems.
- Blocks also become a certain but small one Percentage also cast on horizontal caster.
- the ones here cast strands are mainly special steel grades, which can only absorb small bending stresses when cast.
- the continuous casting machines described are used depending on the dimensions a maximum operationally realistic casting speed of operated at approx. 1.5 - 3.0 m / min.
- the object of the invention is to seek a solution that both Advantages of a round mold as well as the advantages of a square billet with minimal use of additional devices such as e.g. B. has forming frames in the strand guide.
- the object according to claim 1 is achieved in that that the strand enters the mold at the beginning of its solidification Has round format or oval format and this round format or Oval format when conveying over the remaining mold length until the mold is released to an essentially equal extent Polygonal or profile strand format is molded.
- the continuous caster is structurally characterized according to claim 7 characterized in that the continuous casting mold with a round mold format or also oval mold format in the upper mold half is provided and an indentation area starting at the latest in the middle of the mold has that over the lower half of the mold a polygonal or profile format up to the mold exit at the latest about the same size as the original round mold format Has.
- the continuous casting arch system shown in Figure 1 contains the Oscillating mold according to the invention (1) with liquid steel is supplied from a distributor (2).
- the steel can either be free falling from the distributor (2) (Fig. 1A) or with the help of a dip tube (3) using mold powder (4) (Fig. 1B) in the Chill mold (1) are passed.
- the mold (1) according to the invention shows that in the first half (5) from the top edge (5.1) to max. a round or oval format (6) of z. B. 127 mm and in the second half (7) until the mold exit (7.1) the strand on a polygonal format of the same size (8) or the same profile (8.1).
- the 127 mm round format (6) can become a 100 mm Square billet (9), which has the same circumference of 400 mm as the 127 mm round format.
- the square stick can easily convex surfaces and / or have rounded corners (9.1).
- the round format in the Chill to a polygon (10) such. B. like an octahedron To be circumferentially shaped.
- Forming the strand from a round (6) to a polygon (8) or profile (8.1) within the continuous casting mold is easily possible, since the strand with its hot strand shell and the liquid one
- the core is very ductile, has a low deformation resistance and hugs the mold well.
- the billet format molded in this way then comes on the conventional one Continuous casting plant (11) for solidification (11.1) and is Rolling mill (13) fed upstream furnace (12).
- the oven (12) can with a favorable arrangement of the continuous caster and a favorable choice of the strand cross-section to the strand surface be a pure temperature compensation furnace that does not leave the strand Must supply energy.
- the continuous caster can be a billet system as well as one Be a pre-block system.
- a typical blooming unit pours e.g. B. one Strand with the rectangular format 320 x 250 mm, for example for rail generation is used.
- the corresponding round format According to the invention, a diameter would be in the mold of the mold of 363 mm and would have the same size in the mold Pre-block (14) of 320 x 350 mm molded.
- the round profile of the same size can be saved in accordance with the Roll stands are getting smaller.
- Such a casting profile (8.1) close to the final dimensions would correspond, for. B. the eighth intermediate profile within a classic rail calibration of 18 passes, which means that the lengthening of the rolling stock is reduced Ensuring the rail quality reduced from approx. 10 to 6 can be.
- the second part of the mold which is the molding of the Stranges makes consist of mold segments.
- the indentation is then carried out with the help of cooled segment plates (7.2), which are position and force controlled.
- mold segments (7.2) can preferably made of copper, but also made of cast steel.
- Figure 2 shows that the mold according to the invention also at Horizontal continuous casting machines can be used. Either can the strand (15) ( Figure 2A) with the help of the pulling machine (16) Hydraulic jaw drive or electric roller drive from the Mold (1), which is firmly connected to the distributor (17), conveyed out be, or the strand (15) ( Figure 2 B) with the help the pull-out machine (18) with an electric roller drive the oscillating mold (1) with flanged distributor (19) promoted.
- the casting speed up to max. 10 m / min and thus the productivity of the continuous caster is strong can be raised.
- the invention also leads to a minimal additional investment and unchanged in the first approximation Operating costs compared to a conventional continuous caster Rectangle strand formats.
- the invention enables the simple conversion of already existing continuous casting plants with the aim of ensuring the continuous quality to improve both inside and on the surface.
Abstract
Description
Die Erfindung betrifft ein verfahren zur Herstellung von für das Walzen von Langprodukten, inbesondere von Draht, Profilstahl, Stabstahl, Schienen oder dergleichen geeigneten Strängen mit Hilfe einer Stranggießanlage mit Gießkokille. Die Erfindung betrifft auf eine Stranggießanlage mit Kokille zur Durchführung des Verfahrens.The invention relates to a process for the production of Rolling long products, especially wire, section steel, bar steel, Rails or the like suitable strands using a Continuous caster with casting mold. The invention relates to a Continuous caster with mold to carry out the process.
Beim Gießen von Strängen, die für das Walzen von Langprodukten wie z. B. Draht, Profil, Stabstahl und Schienen benötigt werden, werden im wesentlichen Quadratknüppel und Vorblöcke gegossen. Die Formate der Quadratknüppel bewegen sich in dem Abmessungsbereich zwischen 60 - 200 mm mit dem Schwerpunkt von ca. 100 mm, und die der Vorblöcke weisen Abmessungen von beispielsweise 250 x 320 mm auf.When casting strands that are suitable for rolling long products e.g. B. wire, profile, steel bars and rails are required essentially cast square billets and blooms. The formats the square billets move in the dimensional range between 60 - 200 mm with the center of gravity of approx. 100 mm, and that of the blooms have dimensions of, for example, 250 x 320 mm.
Die Knüppel-Stranggießanlagen gießen meistens mit einem offenen Gießstrahl zwischen Verteiler und Kokille und mit Öl als Schmiermittel. Die Vorblock-Stranggießanlagen dagegen gießen mit Tauchrohr und Gießpulver. Bei diesen Stranggießanlagen handelt es sich vorwiegend um Bogenstranggießanlagen mit vertikal angeordneter Kokille, die wiederum aufzuteilen sind in Senkrecht-, Senkrechtabbiege- und Kreisbogenanlagen.The billet continuous casting plants usually pour with an open one Pouring stream between distributor and mold and with oil as a lubricant. The blooms on the other hand, cast with immersion pipe and mold powder. These continuous casting plants are predominantly for continuous sheet caster with vertically arranged mold, which in turn can be divided into vertical, vertical bend and Circular arc systems.
Weiterhin werden auch Blöcke zu einem bestimmten, aber kleinen Anteil auch auf Horizontalstranggießanlagen gegossen. Bei den hier gegossenen Strängen handelt es sich vorwiegend um Sonderstahlgüten, die im Gußzustand nur geringe Biegebeanspruchung aufnehmen können. Blocks also become a certain but small one Percentage also cast on horizontal caster. The ones here cast strands are mainly special steel grades, which can only absorb small bending stresses when cast.
Die beschriebenen Stranggießanlagen werden je nach Abmessung mit einer maximalen betrieblich realistischen Gießgeschwindigkeit von ca. 1,5 - 3,0 m/min betrieben.The continuous casting machines described are used depending on the dimensions a maximum operationally realistic casting speed of operated at approx. 1.5 - 3.0 m / min.
Im Gegensatz zu den Knüppel- und Vorblock-Stranggießanlagen weisen Rundknüppel-Stranggießanlagen - bedingt durch das Rundformat in der Kokille und hier besonders im Bereich des Gießspiegels - höhere Gießgeschwindigkeiten von 2 - 4 m/min auf. Rundknüppel-Stranggießanlagen führen, neben der Möglichkeit einer verbesserten gleichförmigen Schlackenschmierung und damit gleichförmigeren und verringerten Wärmeabfuhr bei Einsatz eines Tauchrohres mit Gießpulver außerdem zu einer Verbesserung der Strangoberfläche und der Stranginnenqualität. Allerdings kommen Rundknüppel bisher nahezu ausschließlich in Nahtlosrohrwerken und nicht in Walzwerken zur Erzeugung von Draht-, Stab- oder Profilstahl zum Einsatz. Gründe hierfür sind die besseren Lager- und Transportmöglichkeiten von Quadratknüppeln bzw. Rechteckformaten in den dem Walzwerk vorgeschalteten Öfen wie Stoßöfen und Hubbalkenöfen. Dies gilt besonders für bereits existierende Mini Mills oder auch integrierte Hüttenwerke, die sehr häufig zwischen der Stranggießanlage und dem Walzwerk einen Stoßofen betreiben, der über ein Zwischenlager versorgt wird.In contrast to the billet and bloom block continuous casting machines Round billet caster - due to the round format in the Chill mold and especially in the area of the mold level - higher ones Pouring speeds of 2 - 4 m / min. Round billet caster lead, in addition to the possibility of improved uniform Slag lubrication and thus more uniform and reduced Heat dissipation when using a dip tube with casting powder also to improve the strand surface and the inner strand quality. So far, billets have come almost exclusively in seamless tube mills and not in rolling mills for the production of Wire, bar or profile steel for use. The reasons for this are better storage and transport options for square billets or Rectangular formats in the furnaces upstream of the rolling mill such as Push furnaces and walking beam furnaces. This is especially true for existing ones Mini mills or even integrated steelworks, which are very common a pusher furnace between the continuous caster and the rolling mill operate, which is supplied via an interim storage facility.
Eine mögliche Lösung mit dem Ziel, die Vorteile einer Rundstranggießkokille und eines Quadratknüppels zu kumulieren, ist in den Patentschriften DE 4139242 und WO 93/04802 beschrieben. Diese Erfindungen haben außerdem das Ziel, die Innenqualität des Stranges durch die Querschnittsreduktion während der Erstarrung unterhalb der Kokille im Bereich der Strangführung zu verbessern. Hier wird unterhalb der Oval- oder Rundstranggießkokille der Strang durch Gerüste auf ein Polygonal- oder ein Knüppelformat eingeformt. Hierzu werden drei Gerüste benötigt, die - bedingt durch Strangdurchbrüche - besonders unterhalb der Kokille sehr gefährdet sind und sowohl die Betriebskosten als auch die Investitionskosten der Stranggießanlage erhöhen. Außerdem ist zu bemerken, daß unterhalb der Kokille mit steigendem Abstand die Strangschale dicker und kälter wird und damit schwerer einzuformen ist. One possible solution with the aim of taking advantage of a continuous casting mold and to accumulate a square stick is in the Patent specifications DE 4139242 and WO 93/04802 described. This Inventions also aim to improve the inner quality of the strand due to the reduction in cross-section during solidification below to improve the mold in the area of the strand guide. Here will below the oval or round continuous casting mold Scaffolds molded into a polygonal or billet format. For this three scaffolds are required, which - due to strand breakthroughs - are particularly at risk below the mold and both the operating costs as well as the investment costs of the continuous caster increase. It should also be noted that below the mold with increasing distance the strand shell becomes thicker and colder and making it harder to mold.
Aufgabe der Erfindung ist es, eine Lösung zu suchen, die sowohl die Vorteile einer Rundkokille als auch die Vorteile eines Quadratknüppels bei minimalem Einsatz von zusätzlichen Vorrichtungen wie z. B. Einformgerüsten in der Strangführung aufweist.The object of the invention is to seek a solution that both Advantages of a round mold as well as the advantages of a square billet with minimal use of additional devices such as e.g. B. has forming frames in the strand guide.
Eine unerwartete Lösung für die oben beschriebene Aufgabe stellen
die im Verfahrensanspruch 1 sowie die im Vorrichtungsanspruch 7
beschriebenen Merkmale dar. Die Unteransprüche 2 bis 6 sowie 8 bis
16 enthalten zweckmäßige Ausgestaltungen der Erfindung bezüglich
Verfahren und Vorrichtung.Provide an unexpected solution to the task described above
those in
Verfahrensmäßig wird die Aufgabe nach Anspruch 1 dadurch gelöst,
daß der Strang bei Beginn seiner Erstarrung in der Kokille ein
Rundformat oder auch Ovalformat aufweist und dieses Rundformat oder
Ovalformat bei der Ausförderung über die restliche Kokillenlänge
bis zum Kokillenaustritt auf ein im wesentlichen umfanggleiches
Vielkant- oder Profil-Strangformat eingeformt wird.In terms of method, the object according to
Die Stranggießanlage zeichnet sich konstruktiv nach Anspruch 7 dadurch aus, daß deren Stranggießkokille mit einem Rundkokillenformat oder auch Ovalkokillenformat in der oberen Kokillenhälfte versehen ist und einen Einformungsbereich spätestens beginnend in der Mitte der Kokille aufweist, der über die untere Kokillenhälfte bis spätestens zum Kokillenausgang ein Vielkantformat oder Profilformat etwa gleichen Umfangs wie das Ausgangs-Rundkokillenformat hat.The continuous caster is structurally characterized according to claim 7 characterized in that the continuous casting mold with a round mold format or also oval mold format in the upper mold half is provided and an indentation area starting at the latest in the middle of the mold has that over the lower half of the mold a polygonal or profile format up to the mold exit at the latest about the same size as the original round mold format Has.
Beigefügte Zeichnungen dienen zur Veranschaulichung der Erfindung mit der folgenden beispielhaften Beschreibung. Es zeigen:
- Figur 1:
- Eine Darstellung der Stranggießanlage mit der erfindungsgemäßen Kokille und Vertikalanordnung beispielsweise in einer Bogenstranggießanlage.
- Figur 2:
- Eine Darstellung von Horizontalstranggießanlagen mit
einem oszillierenden Strang (Figur 2 A) bzw. mit einer
oszillierenden Kokille (
Figur 2 B).
- Figure 1:
- A representation of the continuous caster with the mold and vertical arrangement according to the invention, for example in an arc continuous caster.
- Figure 2:
- An illustration of horizontal continuous casting plants with an oscillating strand (FIG. 2A) or with an oscillating mold (FIG. 2A).
Die in Figur 1 dargestellte Stranggießbogenanlage enthält die erfindungsgemäße oszillierende Kokille (1), die mit flüssigem Stahl aus einem Verteiler (2) versorgt wird. Der Stahl kann entweder frei fallend aus dem Verteiler (2) (Fig. 1A) oder mit Hilfe eines Tauchrohrs (3) unter Verwendung von Gießpulver (4) (Fig. 1B) in die Kokille (1) geleitet werden.The continuous casting arch system shown in Figure 1 contains the Oscillating mold according to the invention (1) with liquid steel is supplied from a distributor (2). The steel can either be free falling from the distributor (2) (Fig. 1A) or with the help of a dip tube (3) using mold powder (4) (Fig. 1B) in the Chill mold (1) are passed.
Die erfindungsgemäße Kokille (1) zeigt entsprechend der Erfindung, daß sie in der ersten Hälfte (5) von der Oberkante (5.1) bis max. zu Kokillenmitte (5.2) ein rundes bzw. ovales Format (6) von z. B. 127 mm aufweist und in der zweiten Hälfte (7) bis zum Kokillenaustritt (7.1) den Strang auf ein umfanggleiches Vielkantformat (8) oder umfanggleiches Profil (8.1) einformt.According to the invention, the mold (1) according to the invention shows that in the first half (5) from the top edge (5.1) to max. a round or oval format (6) of z. B. 127 mm and in the second half (7) until the mold exit (7.1) the strand on a polygonal format of the same size (8) or the same profile (8.1).
So kann beispielsweise das 127 mm Rundformat (6) zu einem 100 mm Quadratknüppel (9), der den gleichen Umfang von 400 mm aufweist wie das 127 mm Rundformat, eingeformt werden.For example, the 127 mm round format (6) can become a 100 mm Square billet (9), which has the same circumference of 400 mm as the 127 mm round format.
Außerdem kann der Quadratknüppel leicht konvexe Flächen und/oder abgerundete Ecken (9.1) aufweisen. Auch kann das Rundformat in der Kokille zu einem Vielkant (10) wie z. B. einem Oktaeder gleichen Umfangs umgeformt werden.In addition, the square stick can easily convex surfaces and / or have rounded corners (9.1). The round format in the Chill to a polygon (10) such. B. like an octahedron To be circumferentially shaped.
Das Einformen des Stranges von einem Rund (6) auf ein Vielkant (8) oder Profil (8.1) innerhalb der Stranggießkokille ist leicht möglich, da der Strang mit seiner heißen Strangschale und dem flüssigen Kern sehr duktiel ist, einen geringen Umformwiderstand aufweist und sich gut an die Kokillenform anschmiegt.Forming the strand from a round (6) to a polygon (8) or profile (8.1) within the continuous casting mold is easily possible, since the strand with its hot strand shell and the liquid one The core is very ductile, has a low deformation resistance and hugs the mold well.
Das so eingeformte Knüppelformat kommt dann auf der herkömmlichen Stranggießanlage (11) zur Durcherstarrung (11.1) und wird dem Walzwerk (13) mit vorgeschaltetem Ofen (12) zugeführt. Der Ofen (12) kann bei einer günstigen Anordnung der Stranggießanlage und bei einer günstigen Wahl des Strangquerschnittes zur Strangoberfläche ein reiner Temperaturausgleichsofen sein, der dem Strang keine Energie zuführen muß.The billet format molded in this way then comes on the conventional one Continuous casting plant (11) for solidification (11.1) and is Rolling mill (13) fed upstream furnace (12). The oven (12) can with a favorable arrangement of the continuous caster and a favorable choice of the strand cross-section to the strand surface be a pure temperature compensation furnace that does not leave the strand Must supply energy.
Die Stranggießanlage kann sowohl eine Knüppelanlage als auch eine Vorblockanlage sein. Eine typische Vorblockanlage gießt z. B. einen Strang mit dem Rechteckformat 320 x 250 mm, der beispielsweise für die Schienenerzeugung verwendet wird. Das entsprechende Rundformat im Gießspiegel der Kokille würde erfindungsgemäß einen Durchmesser von 363 mm aufweisen und würde in der Kokille zu dem umfanggleichen Vorblock (14) von 320 x 350 mm eingeformt. Würde man dagegen ein Profil (8.1) für die Schienenerzeugung in der Kokille einformen, so kann das umfanggleiche Rundprofil entsprechend der eingesparten Walzgerüste kleiner werden.The continuous caster can be a billet system as well as one Be a pre-block system. A typical blooming unit pours e.g. B. one Strand with the rectangular format 320 x 250 mm, for example for rail generation is used. The corresponding round format According to the invention, a diameter would be in the mold of the mold of 363 mm and would have the same size in the mold Pre-block (14) of 320 x 350 mm molded. Would you mind Form profile (8.1) for the rail production in the mold, the round profile of the same size can be saved in accordance with the Roll stands are getting smaller.
Ein solches endabmessungsnaheres Gießprofil (8.1) entspräche z. B. dem achten Zwischenprofil innerhalb einer klassischen Schienenkalibrierung von 18 Walzstichen, womit die Längung des Walzgutes unter Sicherstellung der Schienenqualität von ca. 10 auf 6 reduziert werden kann.Such a casting profile (8.1) close to the final dimensions would correspond, for. B. the eighth intermediate profile within a classic rail calibration of 18 passes, which means that the lengthening of the rolling stock is reduced Ensuring the rail quality reduced from approx. 10 to 6 can be.
Außerdem kann der zweite Teil der Kokille, der die Einformung des Stranges vornimmt, aus Kokillensegmenten bestehen. Die Einformung wird dann mit Hilfe von gekühlten Segmentplatten (7.2), die positions- und kraftgeregelt sind, vorgenommen.In addition, the second part of the mold, which is the molding of the Stranges makes consist of mold segments. The indentation is then carried out with the help of cooled segment plates (7.2), which are position and force controlled.
Zur Verringerung der Reibung kann zwischen den Kokillenplatten und dem Strang auch ein Gasfilm aufgebaut werden, der ein reibungsarmes Gleiten des Stranges unterstützt und den Verschleiß der Kokillenplatten mindert. Diese Kokillensegmente (7.2) können vorzugsweise aus Kupfer, aber auch aus Gußstahl sein. To reduce the friction between the mold plates and a gas film can also be built up on the strand, which is a low-friction Sliding of the strand supports and the wear of the mold plates diminishes. These mold segments (7.2) can preferably made of copper, but also made of cast steel.
Figur 2 zeigt, daß die erfindungsgemäße Kokille ebenfalls bei Horizontalstranggießanlagen zum Einsatz gelangen kann. Entweder kann der Strang (15) (Figur 2 A) mit Hilfe der Ausziehmaschine (16) mit Hydraulik-Klemmbackenantrieb oder Elektrorollenantrieb aus der Kokille (1), die mit dem Verteiler (17) fest verbunden ist, herausgefördert werden, oder der Strang (15) wird (Figur 2 B)mit Hilfe der Ausziehmaschine (18) mit Elektro-Rollenantrieb gleichförmig aus der oszillierenden Kokille (1) mit angeflanschtem Verteiler (19) herausgefördert.Figure 2 shows that the mold according to the invention also at Horizontal continuous casting machines can be used. Either can the strand (15) (Figure 2A) with the help of the pulling machine (16) Hydraulic jaw drive or electric roller drive from the Mold (1), which is firmly connected to the distributor (17), conveyed out be, or the strand (15) (Figure 2 B) with the help the pull-out machine (18) with an electric roller drive the oscillating mold (1) with flanged distributor (19) promoted.
Vorteil der Erfindung ist, daß die Gießgeschwindigkeit bis zu max. 10 m/min und damit die Produktivität der Stranggießanlage stark angehoben werden kann. Die Erfindung führt gleichzeitig zu einer minimalen Zusatzinvestition und in erster Näherung unveränderten Betriebskosten gegenüber einer herkömmlichen Stranggießanlage mit Rechteck-Strangformaten.Advantage of the invention is that the casting speed up to max. 10 m / min and thus the productivity of the continuous caster is strong can be raised. The invention also leads to a minimal additional investment and unchanged in the first approximation Operating costs compared to a conventional continuous caster Rectangle strand formats.
Weiterhin ermöglicht die Erfindung den einfachen Umbau von bereits bestehenden Stranggießanlagen mit dem Ziel, die Strangqualität sowohl innen als auch auf der Oberfläche zu verbessern.Furthermore, the invention enables the simple conversion of already existing continuous casting plants with the aim of ensuring the continuous quality to improve both inside and on the surface.
Somit kann zusammenfassend gesagt werden, daß die Erfindung sowohl für den Umbau von bestehenden Stranggießanlagen als auch für Neuanlagen von technischem und wirtschaftlichem Interesse ist. In summary, it can be said that the invention both for the conversion of existing continuous casting plants as well as for new plants is of technical and economic interest.
- (1)(1)
- KokilleMold
- (2)(2)
- VerteilerDistributor
- (3)(3)
- TauchrohrDip tube
- (4)(4)
- GießpulverMold powder
- (5)(5)
- erste Kokillenhälfte von Oberkante der Kokille bis etwa Kokillenmittefirst mold half from the upper edge of the mold to about Mold center
- (5.1)(5.1)
- Oberkante der KokilleUpper edge of the mold
- (5.2)(5.2)
- Mitte der KokilleMiddle of the mold
- (6)(6)
- Rundstrang-Format (rund/oval)Round strand format (round / oval)
- (7)(7)
- zweite Kokillenhälfte von etwa Kokillenmitte bis Kokillenaustrittsecond mold half from about mold center to mold outlet
- (7.1)(7.1)
- KokillenausgangMold exit
- (7.2)(7.2)
- Kokillensegmente, positions- und kraftgeregeltMold segments, position and force controlled
- (8)(8th)
- Vielkant-KnüppelstrangformatPolygonal billet strand format
- (8.1)(8.1)
- Profil-StrangformatProfile strand format
- (9)(9)
- Quadrat-KnüppelstrangformatSquare billet format
- (9.1)(9.1)
- Quadrat-Knüppelstrangformat mit konvexen Flächen und/oder abgerundeten EckenSquare billet strand format with convex surfaces and / or rounded corners
- (10)(10)
- Oktaederstrang-FormatOctahedron strand format
- (11)(11)
- kontinuierliche Knüppel- oder Vorblockstranggießanlagecontinuous billet or bloom caster
- (11.1)(11.1)
- Durcherstarrung, SumpfspitzeSolidification, swamp tip
- (12)(12)
- Ofenoven
- (13)(13)
- WalzwerkRolling mill
- (14)(14)
- Vorblockformat, z. B. 320 x 250 mmBlock format, e.g. B. 320 x 250 mm
- (15)(15)
- Strangstrand
- (16)(16)
- Ausziehmaschine mit Hydraulik-Klemmbackenantrieb oder Elektro-Rollenantrieb für die Strangoszillation und die Strangförderung bei HorizontalstranggießanlagenPuller with hydraulic jaw drive or Electric roller drive for strand oscillation and Strand conveying in horizontal continuous casting plants
- (17)(17)
- Verteiler fest verbunden mit der nicht oszillierenden Kokille (1)Distributor firmly connected to the non-oscillating Permanent mold (1)
- (18)(18)
- Ausziehmaschine mit Elektro-Rollenantrieb für Strangförderung bei Horizontal-stranggießanlagenExtracting machine with electric roller drive for strand conveying in horizontal continuous casting plants
- (19)(19)
- Verteiler fest verbunden mit der oszillierenden Kokille (1)Distributor firmly connected to the oscillating mold (1)
Claims (16)
dadurch gekennzeichnet,
daß der Strang bei Beginn seiner Erstarrung in der Kokille (1) ein Rundformat oder auch Ovalformat (6) aufweist und dieses Rundformat oder Ovalformat bei der Ausförderung über die restliche Kokillenlänge bis zum Kokillenaustritt auf ein im wesentlichen umfanggleiches Vielkant- oder Profil-Strangformat (8; 8.1) eingeformt wird.Process for the production of strands suitable for the rolling of long products, in particular wire, section steel, bar steel, rails or the like, with the aid of a continuous casting installation with casting mold,
characterized,
that the strand has a round format or oval format (6) at the start of its solidification in the mold (1) and this round format or oval format during the conveyance over the remaining mold length to the mold outlet to an essentially the same polygonal or profile strand format (8 ; 8.1) is molded.
dadurch gekennzeichnet,
daß die Kokille (1) der Stranggießanlage während des Gießens oszillierend bewegt wird.Method according to claim 1,
characterized,
that the mold (1) of the continuous caster is moved in an oscillating manner during the casting.
dadurch gekennzeichnet,
daß die Kokille (1) der Stranggießanlage während des Gießens ruhend ist und der Strang mittels einer oszillierenden Ausziehmaschine (16) ausgefördert wird. Method according to claim 1,
characterized,
that the mold (1) of the continuous casting plant is at rest during the casting and the strand is conveyed out by means of an oscillating pull-out machine (16).
dadurch gekennzeichnet,
daß der Strang mit Gießgeschwindigkeiten bis zu 10 m/min gegossen wird.Method according to at least one of claims 1 to 3,
characterized,
that the strand is cast at casting speeds of up to 10 m / min.
dadurch gekennzeichnet,
daß der Stahl mit offenem Gießstrahl aus einem Verteiler (2) in die Kokille (1) eingebracht wird.Method according to at least one of claims 1 to 4,
characterized,
that the steel is introduced with an open pouring jet from a distributor (2) into the mold (1).
dadurch gekennzeichnet,
daß der Stahl mit einem Tauchrohr (3) unter Verwendung von Gießpulver (4) in die Kokille (1) eingeleitet wird.Method according to at least one of claims 1 to 4,
characterized,
that the steel is introduced into the mold (1) using a dip tube (3) using casting powder (4).
zur Durchführung des Verfahrens nach den Ansprüchen 1 bis 6, wobei die Kokille durch folgende Merkmale gekennzeichnet ist:
to carry out the method according to claims 1 to 6, wherein the mold is characterized by the following features:
dadurch gekennzeichnet,
daß die Kokille (1) bis maximal bis in die Kokillenmitte den Rundquerschnitt (6) aufweist. Continuous casting plant with mold according to claim 5,
characterized,
that the mold (1) has a circular cross-section (6) up to a maximum of the mold center.
dadurch gekennzeichnet,
daß die Kokille (1) an ihrem Ausgang (7.1) ein Quadratknüppel(9), ein konvexes Quadratknüppel- (9.1), ein Oktaeder- (10), ein Vorblock- (14) oder auch ein Profil-Strangformat (8.1) aufweist.Continuous casting plant with mold according to claim 7 or 8,
characterized,
that the mold (1) has at its exit (7.1) a square billet (9), a convex square billet (9.1), an octahedron (10), a billet (14) or a profile strand format (8.1).
dadurch gekennzeichnet,
daß die Kokille (1) im Bereich der zweiten Kokillenhälfte (7) aus voneinander unabhängigen Segmenten (7.2) zwecks Einformung des Stranges besteht.Continuous casting plant with mold according to at least one of claims 7 to 9,
characterized,
that the mold (1) in the region of the second mold half (7) consists of mutually independent segments (7.2) for the purpose of molding the strand.
dadurch gekennzeichnet,
daß die Segmente (7.2) der Kokille (1) positions- und kraftgeregelt sind.Continuous casting plant with mold according to at least one of claims 7 to 10,
characterized,
that the segments (7.2) of the mold (1) are position and force controlled.
dadurch gekennzeichnet,
daß zwischen den Segmenten (7.2) der Kokille (1) und dem Strang eine Einrichtung zum Aufbau eines Gasfilms vorgesehen ist.Continuous casting plant with mold according to at least one of claims 7 to 11,
characterized,
that a device for building a gas film is provided between the segments (7.2) of the mold (1) and the strand.
dadurch gekennzeichnet,
daß die Segmente (7.2) aus Kupfer, aus einer Kupferlegierung oder auch aus Gußstahl bestehen. Continuous casting plant with mold according to at least one of claims 10 to 12,
characterized,
that the segments (7.2) consist of copper, a copper alloy or cast steel.
dadurch gekennzeichnet,
daß die Kokille (1) vertikal und oszillierend angeordnet ist und den Kopf einer Senkrecht-, Senkrechtabbiege- oder Bogen-Stranggießanlage (11) für das Gießen von Knüppeln, Vorblöcken oder Profilen darstellt.Continuous casting plant with mold according to at least one of claims 7 to 13,
characterized,
that the mold (1) is arranged vertically and oscillating and represents the head of a vertical, vertical bending or arc continuous casting installation (11) for the casting of billets, blooms or profiles.
dadurch gekennzeichnet,
daß die Kokille (1) horizontal angeordnet und mit dem Verteiler (17) fest verbunden ist und dem Strang (15) zwecks Ausförderung eine Oszillationseinrichtung zugeordnet ist.Continuous casting plant with mold according to at least one of claims 7 to 13,
characterized,
that the mold (1) is arranged horizontally and is firmly connected to the distributor (17) and an oscillation device is assigned to the strand (15) for the purpose of conveying out.
dadurch gekennzeichnet,
daß die Kokille (1) horizontal angeordnet und mit dem Verteiler (19) fest verbunden ist und Kokille und Verteiler einer Oszillationseinrichtung zugeordnet sind.Continuous casting plant with mold according to at least one of claims 7 to 13,
characterized,
that the mold (1) is arranged horizontally and firmly connected to the distributor (19) and the mold and distributor are assigned to an oscillation device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19639299 | 1996-09-25 | ||
| DE19639299A DE19639299C2 (en) | 1996-09-25 | 1996-09-25 | Device for producing a polygonal or profile format in a continuous caster |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0834363A2 true EP0834363A2 (en) | 1998-04-08 |
| EP0834363A3 EP0834363A3 (en) | 1999-01-07 |
| EP0834363B1 EP0834363B1 (en) | 2001-07-25 |
Family
ID=7806800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97116323A Expired - Lifetime EP0834363B1 (en) | 1996-09-25 | 1997-09-19 | Continuous casting plant for producing a polygonal or profiled section |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6070645A (en) |
| EP (1) | EP0834363B1 (en) |
| AT (1) | ATE203437T1 (en) |
| DE (2) | DE19639299C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2484921C2 (en) * | 2007-07-27 | 2013-06-20 | Смс Конкаст Аг | Method of producing long-length rolled stock by continuous casting and rolling |
| CN111266540A (en) * | 2017-06-16 | 2020-06-12 | 达涅利机械设备股份公司 | Continuous casting method and corresponding apparatus |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6857464B2 (en) * | 2002-09-19 | 2005-02-22 | Hatch Associates Ltd. | Adjustable casting mold |
| US20170137921A1 (en) * | 2015-11-18 | 2017-05-18 | Yuanji Zhu | Systems and Methods for Producing Hardwearing And IMPACT-RESISTANT ALLOY STEEL |
| EP3623074A1 (en) * | 2018-09-13 | 2020-03-18 | SMS Concast AG | Method for the preparation of long products which are close to final dimensions and a continuous casting and rolling installation for carrying out the method |
| IT201800011025A1 (en) * | 2018-12-12 | 2020-06-12 | Danieli Off Mecc | METHOD FOR REALIZING A CONTINUOUS CASTING APPARATUS AND CONTINUOUS CASTING APPARATUS SO OBTAINED |
| CN109794586B (en) * | 2019-02-27 | 2023-10-03 | 山东钢铁股份有限公司 | Crystallizer suitable for full-protection casting of special-shaped blank continuous casting machine |
| AT524482B1 (en) * | 2020-09-18 | 2022-07-15 | Primetals Technologies Austria GmbH | Continuous casting plant and method for operating the continuous casting plant |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0149734B1 (en) * | 1984-01-05 | 1988-04-20 | Sms Schloemann-Siemag Aktiengesellschaft | Continuous casting mould for steel slabs |
| WO1995020443A1 (en) * | 1994-01-28 | 1995-08-03 | Mannesmann Ag | Continuous casting ingot mould for guiding continuous castings |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT374128B (en) * | 1978-06-14 | 1984-03-26 | Voest Alpine Ag | CONTINUOUS CHOCOLATE |
| AT379093B (en) * | 1984-02-16 | 1985-11-11 | Voest Alpine Ag | CONTINUOUS CHOCOLATE FOR A CONTINUOUS CASTING SYSTEM |
| AT383066B (en) * | 1985-09-05 | 1987-05-11 | Voest Alpine Ag | METHOD FOR DISCONTINUOUSLY EXTENDING A STRAND AND DEVICE FOR IMPLEMENTING THE METHOD |
| US4716955A (en) * | 1986-06-11 | 1988-01-05 | Sms Concast Inc. | Continuous casting method |
| GB8814331D0 (en) * | 1988-06-16 | 1988-07-20 | Davy Distington Ltd | Continuous casting of steel |
| ES2056670T5 (en) * | 1991-02-06 | 2001-02-01 | Concast Standard Ag | LINGOTERA FOR CONTINUOUS METAL COLADA, PARTICULARLY STEEL. |
| DE4127331A1 (en) * | 1991-08-19 | 1993-02-25 | Schloemann Siemag Ag | Vibration device for concasting mould - involves two eccentric shafts passing through cross lever anchored at one end by pendulum joint |
| WO1993004802A1 (en) * | 1991-09-12 | 1993-03-18 | Giovanni Arvedi | A process and apparatus for the manufacture of billets and blooms from a continuously last steel showing high or excellent quality |
| DE4139242C3 (en) * | 1991-11-26 | 1999-08-19 | Mannesmann Ag | Process for the production of long steel products |
| DE4343124C2 (en) * | 1993-12-17 | 1996-05-23 | Schloemann Siemag Ag | Mold for the continuous casting of steel strip |
| DE4403045C1 (en) * | 1994-01-28 | 1995-09-07 | Mannesmann Ag | Continuous caster for guiding strands |
-
1996
- 1996-09-25 DE DE19639299A patent/DE19639299C2/en not_active Expired - Fee Related
-
1997
- 1997-09-19 EP EP97116323A patent/EP0834363B1/en not_active Expired - Lifetime
- 1997-09-19 AT AT97116323T patent/ATE203437T1/en not_active IP Right Cessation
- 1997-09-19 DE DE59704114T patent/DE59704114D1/en not_active Expired - Fee Related
- 1997-09-22 US US08/934,951 patent/US6070645A/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0149734B1 (en) * | 1984-01-05 | 1988-04-20 | Sms Schloemann-Siemag Aktiengesellschaft | Continuous casting mould for steel slabs |
| WO1995020443A1 (en) * | 1994-01-28 | 1995-08-03 | Mannesmann Ag | Continuous casting ingot mould for guiding continuous castings |
Non-Patent Citations (1)
| Title |
|---|
| MANFRED HAISSIG: "Horizontal continuous casting: A technology for the furture" IRON AND STEEL ENGINEER,Juni 1984, Seiten 65-71, XP002083884 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2484921C2 (en) * | 2007-07-27 | 2013-06-20 | Смс Конкаст Аг | Method of producing long-length rolled stock by continuous casting and rolling |
| CN111266540A (en) * | 2017-06-16 | 2020-06-12 | 达涅利机械设备股份公司 | Continuous casting method and corresponding apparatus |
| CN111266540B (en) * | 2017-06-16 | 2021-09-28 | 达涅利机械设备股份公司 | Continuous casting method and corresponding apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59704114D1 (en) | 2001-08-30 |
| DE19639299C2 (en) | 2001-02-22 |
| EP0834363B1 (en) | 2001-07-25 |
| US6070645A (en) | 2000-06-06 |
| ATE203437T1 (en) | 2001-08-15 |
| EP0834363A3 (en) | 1999-01-07 |
| DE19639299A1 (en) | 1998-03-26 |
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