EP0972590A1 - Continuous casting mould - Google Patents
Continuous casting mould Download PDFInfo
- Publication number
- EP0972590A1 EP0972590A1 EP99111052A EP99111052A EP0972590A1 EP 0972590 A1 EP0972590 A1 EP 0972590A1 EP 99111052 A EP99111052 A EP 99111052A EP 99111052 A EP99111052 A EP 99111052A EP 0972590 A1 EP0972590 A1 EP 0972590A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- continuous casting
- wall
- armor
- side walls
- 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
Links
- 238000009749 continuous casting Methods 0.000 title claims description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 description 11
- 210000001015 abdomen Anatomy 0.000 description 7
- 239000000161 steel melt Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000005499 meniscus Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010061217 Infestation Diseases 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- B22D11/059—Mould materials or platings
-
- 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
- B22D11/0408—Moulds for casting thin slabs
Definitions
- the invention relates to a continuous casting mold for producing slabs, the has water-cooled narrow and wide side walls, especially for manufacturing of thin slabs, in which case they consist of copper plates Broad side walls on the one hand inside, between one to the two narrow sides each area that runs parallel, a pouring funnel is formed and on the other hand cooling grooves are provided on the outside or on the back.
- the thin slabs produced on continuous casting plants serve as pre-strips for production of hot wide strip with final thicknesses between, for example, 1 to 12 mm.
- CSP Cosmetic Strip Production
- the casting machine with a compensating furnace and a downstream rolling mill is combined in one line (see e.g. DE-Z “steel u. Eisen 108 (1988), No. 3, pages 99 to 109 ").
- the funnel-shaped mold with the immersion tube immersed in the pouring funnel the core of the CSP casting process.
- the heat dissipation in the bathroom mirror area and the service life the mold is of particular importance here, because in the mold with that there the first solidification of the molten steel supplied through the dip tube significantly influences the surface quality of the thin slab strand becomes.
- These criteria apply equally to the production of slabs from the Dimension range 320 to 150 x 3,000 to 800 mm with the help of a then in the As a rule, the plate mold does not require a pouring funnel.
- the strand shell growth is essentially from the casting powder, the copper wall thickness between the cooling channel and the working side as well as the flow rate determined in the cooling channels. It has been shown that the main cause for the formation of longitudinal cracks in the strand shell an uneven and / or excessive heat dissipation across the width and height in the upper mold area. The uneven heat dissipation is due to different thicknesses of the lubricating film the strand shell and the copper wall.
- the invention has for its object a continuous casting mold of the beginning to create the type mentioned, with which the surface quality of the cast Improve thin slab, especially avoid longitudinal cracks, can at least be minimized.
- an advantageous embodiment of the invention in its length limited head end of the wall armor runs parallel to the mold wall, lets mitigate the drop in temperature further. Because this after short rise first, about 20 to 100 mm long section with maximum thickness of the Armor, which can be 3 to 15 mm depending on requirements, is there where the heat dissipation is otherwise too high, and the thicker armouring here thus prevents excessive heat dissipation from the cooling water side is forced.
- An embodiment of the invention provides that the armor up to the wall Transition from the pouring funnel to the adjoining one in the continuous casting direction format-determining mold end section decreases. That way achieved that the copper wall thickness before water over the length of the cooling grooves decreases and thus the heat dissipation over the mold height can be influenced in a targeted manner can.
- the thickness of the wall armor varies across the mold width and height according to the temperature distribution in the mold.
- the different course of the groove geometry in the copper plate favors the desired temperature uniformity across the height and width the mold by a corresponding to the decrease in temperature depending on the Armor designed for casting parameters.
- FIG. 1 From a continuous casting mold 1, known as such, of a casting machine for the production of thin slabs, one of the two is complementary in FIG. 1 opposite broad side walls 2 shown schematically These are for Inclusion of a dip tube, not shown, on the inside with a Pouring funnel 3 formed and on the outside with water flowing through it Provide cooling grooves 4 (see also Fig. 3). Which is next to the pouring funnel 3 each edge regions 5 of the two complementary ones extending towards the narrow sides Broad side walls 2 run parallel to one another. In continuous casting direction 6 below of the pouring funnel 3 the mold walls go into the format-determining Pouring cross section 7 (see FIG. 3).
- the liquid steel melt introduced into the continuous casting mold 1 up to the bath level 8 cools down over the height of the mold with a very rapid drop in temperature, the to tensions in the increasingly developing in the continuous casting direction 6
- Strand shell leads, which cause longitudinal cracks, which in the strand shell primarily up about 150 mm below the bath level 8.
- the bathroom mirror 8 is located at a distance of e.g. 20 to 60 mm from the The upper edge of the mold and, based on this, the cooling behavior is characterized the molten steel melt, which forms a so-called in the mold plates, in Fig. 2 leads schematically drawn temperature belly 9, which characterizes it Curve which shows a significant drop in temperature below.
- the back 10 of the Broad side walls 2 compared to the previously common, indicated by dashed lines in Fig. 1 Contour has been reinforced by a wall armor 11, which is in Continuous casting direction tapers and with its wedge tip approximately in the transition 12 (see FIG. 3) from the pouring funnel 3 to the subsequent format-determining pouring cross section 7 ends.
- the wall armor 11 sets about 20 to 50 mm below the deepest bath level 8, as in Fig. 3 corresponding to the developing Meniscus of the bathroom mirror clarifies and its course across the width of the Adjusted mold.
- the head end 11a - the one rising over a short distance Transition is upstream - the wall armor 11 still protrudes into the Area of the temperature belly 9 and extends in this uppermost Section over a length 13 of approximately 20 to 100 mm parallel to the mold wall, before it then changes into the tapering slope
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Led Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Stranggießkokille zum Herstellen von Brammen, die wassergekühlte Schmal- und Breitseitenwände aufweist, insbesondere zum Herstellen von Dünnbrammen, wobei dann in deren aus Kupferplatten bestehenden Breitseitenwänden einerseits innen, zwischen einem zu den beiden Schmalseiten hin jeweils parallel auslaufenden Bereich, ein Eingießtrichter ausgebildet ist und andererseits außen bzw. rückseitig Kühlnuten vorgesehen sind.The invention relates to a continuous casting mold for producing slabs, the has water-cooled narrow and wide side walls, especially for manufacturing of thin slabs, in which case they consist of copper plates Broad side walls on the one hand inside, between one to the two narrow sides each area that runs parallel, a pouring funnel is formed and on the other hand cooling grooves are provided on the outside or on the back.
Die auf Stranggießanlagen hergestellten Dünnbrammen dienen als Vorbänder zur-Erzeugung von Warmbreitband mit Enddicken zwischen beispielsweise 1 bis 12 mm. Dies geschieht in einer Hitze auf bekannten, sogenannten CSP-(Compact Strip Production) Anlagen, bei denen die Gießmaschine mit einem Ausgleichsofen und einer nachgeschalteten Walzstraße in einer Linie kombiniert wird (vgl. z.B. DE-Z "Stahl u. Eisen 108 (1988), Nr. 3, Seiten 99 bis 109"). Hierbei stellt die trichterförmige Kokille mit dem in den Eingießtrichter eintauchenden Tauchrohr das Kernstück des CSP-Gießprozesses dar. Der Wärmeabfuhr im Badspiegelbereich und der Standzeit der Kokille kommt hierbei eine besondere Bedeutung zu, da in der Kokille mit der dort einsetzenden ersten Erstarrung der über das Tauchrohr zugeführten flüssigen Stahlschmelze die Oberflächenqualität des Dünnbrammenstranges maßgeblich beeinfußt wird. Diese Kriterien gelten in gleichem Maße bei der Erzeugung von Brammen des Abmessungsbereiches 320 bis 150 x 3.000 bis 800 mm mit Hilfe einer dann in der Regel keinen Eingießtrichter erfordernden Plattenkokille.The thin slabs produced on continuous casting plants serve as pre-strips for production of hot wide strip with final thicknesses between, for example, 1 to 12 mm. This is done in a heat on known, so-called CSP (Compact Strip Production) systems in which the casting machine with a compensating furnace and a downstream rolling mill is combined in one line (see e.g. DE-Z "steel u. Eisen 108 (1988), No. 3, pages 99 to 109 "). Here, the funnel-shaped mold with the immersion tube immersed in the pouring funnel, the core of the CSP casting process. The heat dissipation in the bathroom mirror area and the service life the mold is of particular importance here, because in the mold with that there the first solidification of the molten steel supplied through the dip tube significantly influences the surface quality of the thin slab strand becomes. These criteria apply equally to the production of slabs from the Dimension range 320 to 150 x 3,000 to 800 mm with the help of a then in the As a rule, the plate mold does not require a pouring funnel.
Das Strangschalenwachstum wird im wesentlichen vom Gießpulver, der Kupferwandstärke zwischen dem Kühlkanal und der Arbeitsseite sowie der Strömungsgeschwindigkeit in den Kühlkanälen bestimmt. Es hat sich gezeigt, daß die wesentiche Ursache für das Entstehen von Längsrissen in der Strangschale eine ungleichmäßige und/oder zu hohe Wärmeabfuhr über die Breite und Höhe im oberen Kokillenbereich ist. Die ungleiche Wärmeabfuhr ist durch unterschiedliche Dicken des Schmierfilms zwischen der Strangschale und der Kupferwand bedingt.The strand shell growth is essentially from the casting powder, the copper wall thickness between the cooling channel and the working side as well as the flow rate determined in the cooling channels. It has been shown that the main cause for the formation of longitudinal cracks in the strand shell an uneven and / or excessive heat dissipation across the width and height in the upper mold area. The uneven heat dissipation is due to different thicknesses of the lubricating film the strand shell and the copper wall.
Aus Qualitätsgründen werden auf CSP-Anlagen für die Kokillen Kupferwände mit einer Dicke von z.B. 25 mm und 15 mm eingesetzt; die jeweilige Auslegung hängt wesentlich von den Strangabmessungen und der Gießgeschwindigkeit. ab, aus denen sich die für die Strangschalenbildung erforderliche Wärmeabfuhr ergibt.For quality reasons, copper walls with a die are used on CSP systems for the molds Thickness of e.g. 25 mm and 15 mm used; the respective interpretation depends essentially from the strand dimensions and the casting speed. from which the heat dissipation required for the formation of strand shells results.
Der Erfindung liegt die Aufgabe zugrunde, eine Stranggießkokille der eingangs genannten Art zu schaffen, mit der sich die Oberflächenqualität der zu gießenden Dünnbramme verbessern, insbesondere das Auftreten von Längsrissen vermeiden, zumindest minimieren läßt.The invention has for its object a continuous casting mold of the beginning to create the type mentioned, with which the surface quality of the cast Improve thin slab, especially avoid longitudinal cracks, can at least be minimized.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Rückseiten der Breitseitenwände ausgehend von unterhalb der tiefsten Badspiegellage durch eine dort größte, in Stranggießrichtung sich zunehmend verjüngende Wand-Aufpanzerung verstärkt sind. Beim Stranggießen führt die in die Kokille eingeleitete; an den Kokillenwänden erstarrende Stahlschmelze zu dem bekannten Temperaturprofil, dem sogenannten Temperaturbauch in der Kokillenplatte. Im Gegensatz zu einem ansonsten über die Höhe sehr schnellen Temperaturabfall im Anschluß an diesen Temperaturbauch im Bereich bis etwa 100 mm unterhalb des Badspiegels läßt sich durch die erfindungsgemäße Aufpanzerung, deren Ausgangspunkt unter Berücksichtigung der Kontur des von der Gießgeschwindigkeit abhängigen Badspiegels festgelegt wird und die nach einem vorherigen Anstieg bzw. Übergang über eine kurze Strecke in Gießrichtung etwa 20 bis 50 mm unter dem Meniskus mit ihrer größten Dicke beginnt, der recht schnelle Temperaturabfall unterhalb des Temperaturbauches verringern.This object is achieved in that the back of the Broad side walls starting from below the deepest bath level by a there the largest wall armor, which is increasingly tapering in the continuous casting direction are reinforced. During continuous casting, the one introduced into the mold leads; to the Steel melt solidifying mold walls to the known temperature profile, the so-called temperature belly in the mold plate. In contrast to one otherwise very rapid temperature drop following this Temperature belly in the range up to about 100 mm below the bath level can be by the armor according to the invention, the starting point taking into account the contour of the bath level, which is dependent on the casting speed and after a previous climb or transition over a short distance in Pouring direction begins about 20 to 50 mm below the meniscus with its greatest thickness, reduce the rather rapid temperature drop below the temperature belly.
Durch die Erhöhung der Kupferwanddicke unterhalb des Badspiegels wird dort die Wärmeabfuhr reduziert und der Entstehung von Längsrissen durch eine geringere thermische Belastung der Strangschale entgegengewirkt. Die schon im Abschnitt des Temperaturbauches einsetzende Aufpanzerung bzw. dickere Wandstärke verhindert dort nämlich eine übermäßig hohe Wärmeabfuhr, die erst mit der sich zunehmenden, nach unten keilförmig auslaufenden Verjüngung und der dort dünner werdenden Platten- bzw. Wanddicke entsprechend stetig wieder vergrößert wird, so daß sich insgesamt eine Angleichung im Sinne eines für den Längsrißbefall unschädlichen Temperaturunterschieds erreichen läßt.By increasing the copper wall thickness below the bath level, the Reduced heat dissipation and the development of longitudinal cracks due to less counteracted thermal stress on the strand shell. The already in the section of the Preventive armouring or thicker wall thickness prevented there is an excessively high heat dissipation, which only increases with the increasing downwards wedge-shaped taper and thinning there Plate or wall thickness is continuously increased accordingly, so that overall an adjustment in the sense of a harmless to the longitudinal crack infestation Temperature difference.
Wenn naph einer vorteilhaften Ausgestaltung der Erfindung ein in seiner Länge begrenztes Kopfende der Wand-Aufpanzerung parallel zur Kokillenwand verläuft, läßt sich die Milderung des Temperaturabfalls weiter begünstigen. Denn dieser nach dem kurzen Anstieg erste, etwa 20 bis 100 mm lange Abschnitt mit maximaler Dicke der Aufpanzerung, die je nach Anforderung 3 bis 15 mm betragen kann, liegt damit dort, wo die Wärmeabfuhr ansonsten zu hoch ist, und die hier dickere Aufpanzerung verhindert somit, daß die Wärmeabfuhr von der Kühlwasserseite her über Gebühr forciert wird.If naph an advantageous embodiment of the invention in its length limited head end of the wall armor runs parallel to the mold wall, lets mitigate the drop in temperature further. Because this after short rise first, about 20 to 100 mm long section with maximum thickness of the Armor, which can be 3 to 15 mm depending on requirements, is there where the heat dissipation is otherwise too high, and the thicker armouring here thus prevents excessive heat dissipation from the cooling water side is forced.
Eine Ausführung der Erfindung sieht vor, daß die Wand-Aufpanzerung bis hin zum Übergang vom Eingießtrichter zu dem sich diesem in Stranggießrichtung anschließenden, formatbestimmenden Kokillenendabschnitt abnimmt. Auf diese Weise wird erreicht, daß die Kupferwandstärke vor Wasser über die Länge der Kühlnuten abnimmt und damit die Wärmeabfuhr über die Kokillenhöhe gezielt beeinflußt werden kann.An embodiment of the invention provides that the armor up to the wall Transition from the pouring funnel to the adjoining one in the continuous casting direction format-determining mold end section decreases. That way achieved that the copper wall thickness before water over the length of the cooling grooves decreases and thus the heat dissipation over the mold height can be influenced in a targeted manner can.
Nach einer weiteren Ausgestaltung der Erfindung variiert die Dicke der Wand-Aufpanzerung über die Kokillenbreite und -höhe entsprechend der Temperaturverteilung in der Kokille. Der somit unterschiediche Verlauf der Nutgeometrie in der Kupferplatte begünstigt die angestrebte Temperatur-Vergleichmäßigung über die Höhe und Breite der Kokille durch eine entsprechend der Temperaturabnahme in Abhängigkeit der Gießparameter ausgelegte Aufpanzerung. According to a further embodiment of the invention, the thickness of the wall armor varies across the mold width and height according to the temperature distribution in the mold. The different course of the groove geometry in the copper plate favors the desired temperature uniformity across the height and width the mold by a corresponding to the decrease in temperature depending on the Armor designed for casting parameters.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Patentansprüchen und der nachfolgenden Beschreibung, in der ein Ausführungsbeispiel des Gegenstandes der Erfindung mit einer Kokille zum Herstellen von Dünnbrammen näher erläutert ist. Es zeigen:
- Fig. 1
- einen Längsschnitt durch eine Breitseitenwand einer Stranggießkokille;
- Fig. 2
- als Einzelheit den in Fig. 1 strichpunktiert eingekreisten oberen Teil der Kokillenwand; und
- Fig. 3
- die Kokillen-Breitseitenwand gemäß Fig 1 von links her gesehen mit darüber abgesetzt als Einzelheit schematisch dargestellten rückseitigen Kühlnuten.
- Fig. 1
- a longitudinal section through a broad side wall of a continuous casting mold;
- Fig. 2
- as a detail the upper part of the mold wall which is circled by dash-dotted lines in FIG. 1; and
- Fig. 3
- the mold broad side wall according to FIG. 1 seen from the left with the cooling grooves shown schematically as a detail on the back.
Von einer als solche hinlänglich bekannten Stranggießkokille 1 einer Gießmaschine
zum Herstellen von Dünnbrammen ist in Fig 1 eine der beiden sich komplementär
gegenüberliegenden Breitseitenwände 2 schematisch dargestellt Diese sind zur
Aufnahme eines nicht dargestellten Tauchrohres an den Innenseiten mit einem
Eingießtrichter 3 ausgebildet und an ihren Außenseiten mit von Wasser durchströmten
Kühlnuten 4 versehen (vgl. auch Fig. 3). Die sich neben dem Eingießtrichter 3 jeweils
zu den Schmalseiten hin erstreckenden Randbereiche 5 der beiden komplementären
Breitseitenwände 2 verlaufen parallel zueinander. In Stranggießrichtung 6 unterhalb
des Eingießtrichters 3 gehen die Kokillenwände in den formatbestimmenden
Gießquerschnitt 7 (vgl. Fig. 3) über.From a
Die in die Stranggießkokille 1 bis zum Badspiegel 8 eingeleitete flüssige Stahlschmelze
erkaltet über die Höhe der Kokille mit einem sehr schnellen Temperaturabfall, der
zu Spannungen in der sich in Stranggießrichtung 6 zunehmend ausbildenden
Strangschale führt, die Längsrisse verursachen, die in der Strangschale vorrangig bis
etwa 150 mm unterhalb der Badspiegels 8 festzustellen sind. Der Badspiegel 8
befindet sich je nach Gießparameter in einem Abstand von z.B. 20 bis 60 mm von der
Oberkante der Kokille, und ausgehend davon charakterisiert sich das Abkühlverhalten
der flüssigen Stahlschmelze, die in den Kokillenplatten zu einem sogenannten, in Fig.
2 schematisch eingezeichneten Temperaturbauch 9 führt, wobei der diesen kennzeichnenden
Kurve der darunter deutliche Temperaturabfall zu entnehmen ist.The liquid steel melt introduced into the
Um eine bei herkömmlichen Stranggießkokillen gemäß der Kurve im Anschluß an den
Temperaturbauch 9 deutlich abfallende Kokillentemperatur zu vermeiden und eine
Temperatur-Vergleichmäßigung, d.h. eine über die Höhe der Stranggießkokille 1
angenähert gleiche Wärmeabfuhr zu erreichen, sind die Rückseiten 10 der
Breitseitenwände 2 gegenüber der bisher üblichen, in Fig. 1 gestrichelt angedeuteten
Kontur durch eine Wand-Aufpanzerung 11 verstärkt worden, die sich in
Stranggießrichtung verjüngt und mit ihrer Keilspitze etwa im Übergang 12 (vgl. Fig. 3)
vom Eingießtrichter 3 zu dem sich anschließenden formatbestimmenden Gießquerschnitt
7 endet. Die Wand-Aufpanzerung 11 setzt etwa 20 bis 50 mm unterhalb der
tiefsten Badspiegellage 8 an, wie in Fig. 3 entsprechend dem sich ausbildenden
Meniskus des Badspiegels verdeutlicht und wird dessen Verlauf über die Breite der
Kokille angepaßt. Das Kopfende 11a - dem ein über eine kurze Strecke ansteigender
Übergang vorgeschaltet ist - der Wandaufpanzerung 11 ragt damit noch in den
Bereich des Temperaturbauches 9 hinein und erstreckt sich in diesem obersten
Abschnitt über eine Streckenlänge 13 von ca. 20 bis 100 mm parallel zur Kokillenwand,
bevor sie dann in den sich verjüngenden Neigungsverlauf übergehtTo one in conventional continuous casting molds according to the curve following the
To avoid
Aufgrund der Wand-Aufpanzerung 11, die nicht nur über die Höhe sondern auch über
die Breite der Stranggießkokille variiert und in Stranggießrichtung 6 stetig abnimmt,
wird die Arbeitstemperatur in den Abschnitten mit einer dickeren Wand-Aufpanzerung
angehoben und damit insbesondere der schroffe Temperaturabfall unterhalb der
"Keule" des Temperaturbauches 9 deutlich abgeschwächt d.h. die Wärmeabfuhr über
die Höhe und Breite der Stranggießkokille 1 wird vergleichmäßigt.Because of the
Claims (4)
dadurch gekennzeichnet,
daß die Rückseiten (10) der Breitseitenwände (2) ausgehend von unterhalb einer tiefsten Badspiegellage (8) durch eine dort größte, in Stranggießrichtung (6) sich zunehmend verjüngende Wand-Aufpanzerung (11) verstärkt sind.Continuous casting mold for the production of slabs, which has water-cooled narrow and broad side walls, in particular for the production of thin slabs, in which case a pouring funnel is formed in the broad side walls, which consist of copper plates, on the one hand inside, between an area running parallel to the two narrow sides, and on the other hand outside or cooling grooves are provided on the rear,
characterized,
that the rear sides (10) of the broad side walls (2), starting from below a deepest level of the bath level (8), are reinforced by a wall armor (11) which is increasingly tapered there in the continuous casting direction (6).
dadurch gekennzeichnet,
daß die Wand-Aufpanzerung (11) bis hin zum Übergang (12) vom Eingießtrichter (3) zu dem sich diesem in Stranggießrichtung (6) anschließenden Kokillenendabschnitt (7) abnimmtContinuous casting mold according to claim 1,
characterized,
that the wall armor (11) up to the transition (12) from the pouring funnel (3) to the mold end section (7) adjoining this in the continuous casting direction (6) decreases
dadurch gekennzeichnet,
daß die Wand-Aufpanzerung (11) über die Kokillenbreite und -höhe entsprechend der Temperaturverteilung in der Kokille variiert. Continuous casting mold according to claim 1 or 2,
characterized,
that the wall armor (11) varies over the mold width and height according to the temperature distribution in the mold.
dadurch gekennzeichnet,
daß ein in seiner Länge begrenztes Kopfende (11a) der Wand-Aufpanzerung (11) parallel zur Kokillenwand verläuft.Continuous casting mold according to one of claims 1 to 3,
characterized,
that a length-limited head end (11a) of the armor (11) runs parallel to the mold wall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19831998 | 1998-07-16 | ||
| DE19831998A DE19831998A1 (en) | 1998-07-16 | 1998-07-16 | Continuous casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0972590A1 true EP0972590A1 (en) | 2000-01-19 |
| EP0972590B1 EP0972590B1 (en) | 2004-03-31 |
Family
ID=7874288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99111052A Expired - Lifetime EP0972590B1 (en) | 1998-07-16 | 1999-06-14 | Continuous casting mould |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6474401B1 (en) |
| EP (1) | EP0972590B1 (en) |
| JP (1) | JP4836303B2 (en) |
| AT (1) | ATE262993T1 (en) |
| DE (2) | DE19831998A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1445045A1 (en) * | 2003-02-04 | 2004-08-11 | SMS Demag Aktiengesellschaft | Process and apparatus for continuous casting of liquid metals in particular steels |
| CN105057613A (en) * | 2015-09-15 | 2015-11-18 | 西峡龙成特种材料有限公司 | Chamfered crystallizer narrow-face copper plate for slab continuous casting |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1436106A2 (en) * | 2001-10-18 | 2004-07-14 | SMS Demag Aktiengesellschaft | Method and device for optimizing the cooling capacity of a continuous casting mold for liquid metals, particularly for liquid steel |
| CN1292858C (en) * | 2004-01-17 | 2007-01-03 | 宝山钢铁股份有限公司 | Water-cooled metal continuous-casting crystallizer |
| US7000676B2 (en) * | 2004-06-29 | 2006-02-21 | Alcoa Inc. | Controlled fluid flow mold and molten metal casting method for improved surface |
| DE102006036708A1 (en) * | 2006-08-05 | 2008-02-07 | Sms Demag Ag | Continuous casting mold for liquid metals, in particular for liquid steel materials |
| KR101892771B1 (en) * | 2011-02-25 | 2018-08-28 | 도호 티타늄 가부시키가이샤 | Melting furnace for smelting metal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995026839A1 (en) * | 1994-04-01 | 1995-10-12 | Acutus Industries | Continuous metal casting mold |
| EP0685279A1 (en) * | 1994-05-30 | 1995-12-06 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Method for the continuous casting of peritectic steels |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5280229A (en) * | 1975-12-27 | 1977-07-05 | Ono Atsumi | Mould for continuous casting |
| JPS6027572Y2 (en) * | 1981-09-03 | 1985-08-20 | 合同製鉄株式会社 | Continuous casting mold |
| JPS61195746A (en) * | 1985-02-25 | 1986-08-30 | Sumitomo Metal Ind Ltd | Mold for continuous casting |
| DE3627991A1 (en) * | 1986-08-18 | 1988-02-25 | Mannesmann Ag | METHOD FOR CONTINUOUSLY MOLDING SLABS AND DEVICE FOR CARRYING OUT THE METHOD |
| DE3640525C2 (en) * | 1986-11-27 | 1996-02-15 | Schloemann Siemag Ag | Mold for the continuous casting of steel strip |
| US5176197A (en) * | 1990-03-30 | 1993-01-05 | Nippon Steel Corporation | Continuous caster mold and continuous casting process |
| DE4233522A1 (en) * | 1992-04-04 | 1993-10-07 | Schloemann Siemag Ag | Process for producing a wide mold side wall for a thin slab caster |
| JPH1058093A (en) * | 1996-08-23 | 1998-03-03 | Sumitomo Metal Ind Ltd | Method for continuously casting steel |
-
1998
- 1998-07-16 DE DE19831998A patent/DE19831998A1/en not_active Withdrawn
-
1999
- 1999-06-14 EP EP99111052A patent/EP0972590B1/en not_active Expired - Lifetime
- 1999-06-14 DE DE59908998T patent/DE59908998D1/en not_active Expired - Lifetime
- 1999-06-14 AT AT99111052T patent/ATE262993T1/en active
- 1999-07-08 JP JP19476099A patent/JP4836303B2/en not_active Expired - Fee Related
- 1999-07-08 US US09/349,634 patent/US6474401B1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995026839A1 (en) * | 1994-04-01 | 1995-10-12 | Acutus Industries | Continuous metal casting mold |
| EP0685279A1 (en) * | 1994-05-30 | 1995-12-06 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Method for the continuous casting of peritectic steels |
Non-Patent Citations (1)
| Title |
|---|
| FLEMMING G ET AL: "WALZEN VON STRANGGEGOSSENEN VORBAENDERN UND ANLAGENTECHNISCHE KONSEQUENZEN FUER DEN BAU VON WARMBAND-PRODUKTIONSANLAGEN. ROLLING OF CONTINUOUSLY CAST STRIPS AND THE TECHNICAL CONSEQUENCES WITH RESPECT TO THE DESIGN OF HOT STRIP PRODUCTION PLANTS", STAHL UND EISEN, vol. 108, no. 3, 8 February 1988 (1988-02-08), pages 99 - 109, XP002014244, ISSN: 0340-4803 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1445045A1 (en) * | 2003-02-04 | 2004-08-11 | SMS Demag Aktiengesellschaft | Process and apparatus for continuous casting of liquid metals in particular steels |
| CN105057613A (en) * | 2015-09-15 | 2015-11-18 | 西峡龙成特种材料有限公司 | Chamfered crystallizer narrow-face copper plate for slab continuous casting |
| CN105057613B (en) * | 2015-09-15 | 2018-07-06 | 西峡龙成特种材料有限公司 | A kind of sheet billet continuous casting chamber crystallizer narrow-surface copper |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0972590B1 (en) | 2004-03-31 |
| ATE262993T1 (en) | 2004-04-15 |
| JP2000033461A (en) | 2000-02-02 |
| JP4836303B2 (en) | 2011-12-14 |
| US6474401B1 (en) | 2002-11-05 |
| DE19831998A1 (en) | 2000-01-20 |
| DE59908998D1 (en) | 2004-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0551311B1 (en) | Liquid-cooled mould for continuous casting of steel billets in slab form | |
| DE212009000056U1 (en) | Continuous casting plant for producing thick slabs | |
| DE2414514A1 (en) | CONTINUOUS CASTING | |
| AT412194B (en) | IMPROVED CHOCOLATE FOR A CONTINUOUS CASTING SYSTEM AND METHOD | |
| EP0615802A2 (en) | Coninuous casting machine for ingots suitable for rolling | |
| EP0972590B1 (en) | Continuous casting mould | |
| DE60000858T2 (en) | METHOD AND DEVICE FOR CONTINUOUSLY CASTING AT HIGH SPEED | |
| LU85485A1 (en) | DEVICE AND METHOD FOR CONTINUOUSLY POURING METAL | |
| EP2025432A1 (en) | Method for creating steel long products through strand casting and rolling | |
| EP1132161B1 (en) | Process for continuous casting slabs, especially thin slabs | |
| DE1583619A1 (en) | Transport or support roller for metal, especially steel continuous casting plants | |
| EP1918042A1 (en) | Mould for continuous casting of pre-profiled billets | |
| WO2021001495A1 (en) | Molten metal guide for strip casting systems | |
| EP3284550B1 (en) | Method for producing a mould for continuous casting of metallic products, and a mould | |
| EP0968778B1 (en) | Device and method for continuous casting of hollow profiles | |
| EP4122622A1 (en) | Strand guiding device and method for continuous casting of a metallic product in a continuous casting plant with such a strand guiding device | |
| EP1385656A1 (en) | Method and device for continuously casting ingots, slabs or thin slabs | |
| EP1539401B1 (en) | Continuous casting mould for liquid metals, especially for liquid steel | |
| DE19801728C1 (en) | Continuous casting mould | |
| EP1742751B1 (en) | Cooled continuous casting mold | |
| DE3427708A1 (en) | Apparatus for the lateral guidance of a strand in a continuous billet-casting plant | |
| DE19549275C1 (en) | Concasting mould for making profile sections | |
| WO2018060246A1 (en) | Method for the multiple casting of metal strands | |
| DE1433022A1 (en) | Method and device for continuous casting | |
| DE2735421A1 (en) | METHOD AND DEVICE FOR CONTINUOUS CASTING OF A STEEL STRAND |
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: 19990712 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE DE ES FR GB IT LU NL SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SMS DEMAG AG |
|
| AKX | Designation fees paid |
Free format text: AT BE DE ES FR GB IT LU NL SE |
|
| 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 ES FR GB IT LU NL SE |
|
| 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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040331 Ref country code: FR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040331 |
|
| 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: 59908998 Country of ref document: DE Date of ref document: 20040506 Kind code of ref document: P |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040630 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040712 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040721 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| BERE | Be: lapsed |
Owner name: SMS DEMAG AG Effective date: 20040630 |
|
| 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 |
|
| EN | Fr: translation not filed | ||
| 26N | No opposition filed |
Effective date: 20050104 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20120622 Year of fee payment: 14 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20120622 Year of fee payment: 14 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20120627 Year of fee payment: 14 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20120613 Year of fee payment: 14 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 262993 Country of ref document: AT Kind code of ref document: T Effective date: 20130614 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20130614 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59908998 Country of ref document: DE Effective date: 20140101 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140101 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130614 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130614 |