EP3197618B1 - Method for quickly converting a single-train continuous casting plant for slabs into a multi-train continuous casting plant for billets, and vice versa - Google Patents
Method for quickly converting a single-train continuous casting plant for slabs into a multi-train continuous casting plant for billets, and vice versa Download PDFInfo
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- EP3197618B1 EP3197618B1 EP15748193.8A EP15748193A EP3197618B1 EP 3197618 B1 EP3197618 B1 EP 3197618B1 EP 15748193 A EP15748193 A EP 15748193A EP 3197618 B1 EP3197618 B1 EP 3197618B1
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- Prior art keywords
- continuous casting
- strand
- billet
- mould
- casting plant
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- 238000009749 continuous casting Methods 0.000 title claims description 124
- 238000000034 method Methods 0.000 title claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 238000010276 construction Methods 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 27
- 230000008878 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 description 18
- 238000009434 installation Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
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- 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
- B22D11/14—Plants for continuous casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
-
- 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
-
- 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
- B22D11/14—Plants for continuous casting
- B22D11/141—Plants for continuous casting for vertical casting
-
- 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
- B22D11/14—Plants for continuous casting
- B22D11/147—Multi-strand plants
Definitions
- the present invention relates to the technical field of continuous casting.
- Continuous casting today casts the majority of the world steel produced annually in continuously operated continuous casters into strands of varying cross-sections (e.g., slabs, billets, billets, profiles).
- the present invention relates to a method for the rapid conversion of a single-strand slab caster (ie, a continuous caster for continuous casting of liquid steel into a slab cross section) into a multi-strand billet continuous caster (ie, a continuous caster for continuous casting of liquid steel into multiple strands having billet cross section ).
- the invention also relates to a method for the rapid conversion of a multi-strand billet continuous casting into a single-strand slab continuous casting.
- Both methods for converting a single-strand slab continuous casting into a multi-strand billet continuous casting and vice versa are basically known.
- a continuous casting of a type by a time-consuming conversion converted into a continuous casting plant of the other type since the replacement of the mold (s), the oscillating unit (s) for the mold (s) and the strand guide takes a long time, the plant operator can not respond promptly to cyclical variations in the demand for slab or billet strings.
- the plant operator can not fully utilize his existing continuous casters or sell the strands, which are currently in less demand, with maximum profit, or, on the other hand, he can not cover a temporary demand. Both cases are unsatisfactory for the plant operator.
- the plant operator can not operate his continuous caster during the conversion, resulting in significant output losses (which are proportional to the conversion time).
- WO 2009/141210 A1 is a strand guide for a single-strand billet or bloom described.
- the first strand guide segment alone and a subsequent strand guide segment can be expanded together with the segment frame.
- the object of the present invention is to provide a method for the rapid conversion of a single-strand slab continuous casting into a multi-strand billet continuous casting and to provide a method for rapidly converting a multi-strand billet continuous caster into a single-strand continuous slab caster.
- the conversion process according to the invention can both continuous slab caster with a straight or a curved Mold are quickly converted into a multi-strand billet continuous casting.
- the machine head (ie the mold and the oscillating unit) of the slab continuous casting plant is rebuilt.
- a common support frame is installed and connected to the mainland of the continuous caster.
- the oscillating units and the oscillating molds of the billet continuous casting are used. Due to the common support frame, the installation and removal of the machine head of the multi-strand billet continuous casting can be done very quickly.
- the oscillating units and molds of the multi-strand billet continuous casting machine are not even solved by the common support frame, but installed and removed as a module.
- the segments of the continuous slab caster are released from the rear construction and removed, preferably extended over rails.
- To guide and support the billet strands pairs of rollers are connected to the existing rear construction.
- the cooling nozzles of the roller pairs are connected to the existing water supply of the continuous casting machine.
- at least one extraction unit - e.g. in the form of a pair of rollers with driven rollers - connected to pull out a plurality of billet strands from the molds with the rear construction of the continuous casting and the pull-out unit connected to the hydraulic supply of the continuous casting.
- a bending device for deflecting the vertical billet strand is arranged on an arcuate path with radius.
- the machine head of the multi-strand billet continuous casting can be quickly removed by the common support frame and the machine head of the slab continuous casting can be used quickly.
- the existing rear construction and the existing water and hydraulic supplies can be reused.
- a bending device for deflecting the vertical slab strand is arranged on a circle arc path with radius.
- the segments in the strand guide of the slab continuous casting machine are connected to the rear structure in such a way that for the radius of curvature R 1 of the slab continuous casting machine R 101 ⁇ R 1 ⁇ 2 * R 101 , where R 101 is the radius of curvature of the billet continuous casting machine.
- Fig. 1 is a single-strand slab continuous casting 1 with a straight mold 2, an oscillating unit 3, a strand guide 4, consisting of a bending device 5 for bending the vertical slab strand B on a circular arc with radius R and a total of 14 hydraulically adjustable segments 4a ... 4n shown
- the segments 4a ... 4h serve to guide the slab strand B on the circular arc R or R 1 and to cool the slab strand by cooling nozzles and possibly to reduce its thickness (for example by a soft core or liquid core reduction ).
- the following segments 4i ... 4n serve to guide the slab strand B horizontally and, if necessary, to further reduce the thickness of the slab strand B.
- the oscillating unit 3 is mechanically connected to the mainland 6 of the continuous casting and fluidly connected to a hydraulic supply; Furthermore, of course, the mold 2 is connected to the water supply.
- the segments 4 a ... 4 n are each mechanically detachably mechanically connected to the rear construction 7 and fluidly connected to a respective hydraulic and water supply.
- the slab strand B can be reduced in thickness by the at least four hydraulic cylinders of each segment. Through the supply of water, the slab strand B can be cooled by cooling nozzles.
- the procedure is as follows: First, the water supply from the mold 2 and the hydraulic supply from the oscillating unit 3 are disconnected. This is done by uncoupling quick couplings. Subsequently, the mold 2 and the oscillating unit 3 is removed and instead a common support frame 111 (please refer Fig. 4 ) for three billet strands K. In the common support frame 111, three oscillating units 103 and three molds 102 are used with billet format. The common support frame 111 is connected to the mainland 6.
- the operability of the machine head of the billet continuous caster 101 is established.
- the segments 4a ... 4n are disconnected from the water and hydraulic supply, the segments released from the rear structure 7 and extended from the continuous casting over the rails shown;
- the bending device 5 is removed. Instead of the bending device 5 and the segments 4 of the slab continuous casting is in Fig.
- the roller pairs 104a... 104i are connected to the existing rear construction 7 and the cooling nozzles of the roller pairs are connected to the existing water supply.
- a plurality of pairs of rollers are formed as pull-out units, wherein the pairs of rollers are driven by a motor.
- these pairs of rollers are connected to a hydraulic connection.
- Out Fig. 2 shows that not all slab segments have been replaced by pairs of rolls. In general, this is not necessary since the billet strands are typically not reduced in thickness in the horizontal outlet region.
- Fig. 3 In contrast to the straight dies 102 of the billet continuous casting machine in Fig. 2 has the billet continuous casting the Fig. 3 curved molds 102 on.
- the bent molds 102 eliminate the need for a bending device for the billet strands K to install. This will further accelerate the conversion.
- a machine head of a multi-strand billet continuous casting machine 101 with curved molds 102 is shown.
- Each bent mold 102 is oscillated by an oscillating unit 103, with three oscillating units 103 again supported on the common support frame 111.
- the common support frame 111 is installed below the slab mold 2, which of course is removed prior to installation.
- the procedure is as follows: First, the pull-out units 108 are disconnected from the hydraulic supply of the continuous casting machine 101, the pull-out units 108 are released from the rear construction 7 and removed from the continuous casting plant. Subsequently, the cooling nozzles of the roller pairs 104a ... 104g are decoupled from the water supply, the pairs of rollers released from the rear construction 7 and removed from the continuous casting. Furthermore, several hydraulically adjustable segments 4a ... 4n (see Fig. 1 ) for guiding and cooling the slab strand B introduced into the continuous casting and the segments 4a ... 4n connected to the rear construction 7. Finally, the segments 4a ...
- the slab strand B in the segments 4a ... 4n can be cooled by cooling nozzles and optionally reduced in thickness.
- the water supply to the dies 102 and the hydraulic supply is disconnected from the oscillating units 103 of the continuous casting. Then, the common support frame 111 and the molds 102 and oscillating units 103 inserted therein are removed, and instead, a mold 2 for casting liquid steel into a slab strand B and an oscillating unit 3 for oscillating the mold 2 are installed.
- the functionality of the machine head is restored.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
Die vorliegende Erfindung betrifft das technische Gebiet des Stranggießens. Durch das Stranggießen wird heute der Großteil der jährlich produzierten Weltstahlmenge in kontinuierlich betriebenen Stranggießanlagen zu Strängen mit unterschiedlichen Querschnitten (z.B. Brammen, Knüppeln, Vorblöcke, Profile) vergossen.The present invention relates to the technical field of continuous casting. Continuous casting today casts the majority of the world steel produced annually in continuously operated continuous casters into strands of varying cross-sections (e.g., slabs, billets, billets, profiles).
Sowohl Stranggießanlagen zum kontinuierlichen Vergießen von flüssigem Stahl zu einem Strang mit Knüppel- (engl. billet) oder Brammen- (engl. slab) Querschnitt sind bekannt.Both continuous casting machines for continuously casting molten steel into a strand with billet (engl. Billet) or slab (engl. Slab) cross-section are known.
Einerseits betrifft die vorliegende Erfindung ein Verfahren zum raschen Umbau einer einsträngigen Brammen-Stranggießanlage (d.h. einer Stranggießanlage zum Stranggießen von flüssigem Stahl in einen Strang mit Brammenquerschnitt) in eine mehrsträngige Knüppel-Stranggießanlage (d.h. einer Stranggießanlage zum Stranggießen von flüssigem Stahl in mehrere Stränge mit Knüppelquerschnitt).On the one hand, the present invention relates to a method for the rapid conversion of a single-strand slab caster (ie, a continuous caster for continuous casting of liquid steel into a slab cross section) into a multi-strand billet continuous caster (ie, a continuous caster for continuous casting of liquid steel into multiple strands having billet cross section ).
Andererseits betrifft die Erfindung aber auch ein Verfahren zum raschen Umbau einer mehrsträngigen Knüppel-Stranggießanlage in eine einsträngige Brammen-Stranggießanlage.On the other hand, however, the invention also relates to a method for the rapid conversion of a multi-strand billet continuous casting into a single-strand slab continuous casting.
Sowohl Verfahren zum Umbau einer einsträngigen Brammen-Stranggießanlage in eine mehrsträngige Knüppel-Stranggießanlage und umgekehrt sind grundsätzlich bekannt. Dabei wird eine Stranggießanlage des einen Typs durch einen zeitaufwändigen Umbau in eine Stranggießanlage des anderen Typs umgebaut. Da jedoch der Umbau durch den Austausch der Kokille(n), der Oszilliereinheit(en) für die Kokille(n) und der Strangführung lange dauert, kann der Anlagenbetreiber auf zyklische Schwankungen der Nachfrage nach Brammen- oder Knüppelsträngen nicht zeitgerecht reagieren. Somit kann der Anlagenbetreiber einerseits seine existierenden Stranggießanlagen nicht vollständig auslasten bzw. die gerade weniger stark nachgefragten Stränge nicht mit maximalem Gewinn verkaufen, oder er kann andererseits eine temporär bestehende Nachfrage nicht decken. Beide Fälle sind für den Anlagenbetreiber nicht zufriedenstellend. Schließlich kann der Anlagenbetreiber seine Stranggießanlage während des Umbaus nicht betreiben, sodass sich signifikante Ausbringungsverluste (die sich proportional zur Umbauzeit verhalten) ergeben.Both methods for converting a single-strand slab continuous casting into a multi-strand billet continuous casting and vice versa are basically known. In this case, a continuous casting of a type by a time-consuming conversion converted into a continuous casting plant of the other type. However, since the replacement of the mold (s), the oscillating unit (s) for the mold (s) and the strand guide takes a long time, the plant operator can not respond promptly to cyclical variations in the demand for slab or billet strings. Thus, on the one hand, the plant operator can not fully utilize his existing continuous casters or sell the strands, which are currently in less demand, with maximum profit, or, on the other hand, he can not cover a temporary demand. Both cases are unsatisfactory for the plant operator. Finally, the plant operator can not operate his continuous caster during the conversion, resulting in significant output losses (which are proportional to the conversion time).
In der
Die Aufgabe der bestehenden Erfindung besteht darin, ein Verfahren zum raschen Umbau einer einsträngigen Brammen-Stranggießanlage in eine mehrsträngige Knüppel-Stranggießanlage und ein Verfahren zum raschen Umbau einer mehrsträngigen Knüppel-Stranggießanlage in eine einsträngige Brammen-Stranggießanlage anzugeben.The object of the present invention is to provide a method for the rapid conversion of a single-strand slab continuous casting into a multi-strand billet continuous casting and to provide a method for rapidly converting a multi-strand billet continuous caster into a single-strand continuous slab caster.
Diese Aufgabe wird durch das Verfahren nach Anspruch 1 gelöst. Bevorzugte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This object is achieved by the method according to claim 1. Preferred embodiments are subject of the dependent claims.
Konkret erfolgt die Lösung der Aufgabe durch ein Verfahren zum Umbau einer einsträngigen Brammen-Stranggießanlage in eine mehrsträngige Knüppel-Stranggießanlage, wobei die Brammen-Stranggießanlage umfasst:
- eine Kokille zum Vergießen von flüssigem Stahl in einen Brammenstrang und eine Oszilliereinheit zum Oszillieren der Kokille;
- eine Strangführung zum Stützen, Führen und Abkühlen des Brammenstrangs, wobei die Strangführung mehrere hydraulisch verstellbare Segmente aufweist, der Brammenstrang in den Segmenten durch Kühldüsen abgekühlt und gegebenenfalls in seiner Dicke reduziert wird, die Segmente mit einer Hinterkonstruktion mechanisch und mit je einer Hydraulik- und einer Wasserversorgung fluidtechnisch verbunden sind; aufweisend die Verfahrensschritte:
- i) Abkoppeln der Wasserversorgung von der Kokille und Abkoppeln der Hydraulikversorgung von der Oszilliereinheit;
- ii) Ausbau der Kokille und der Oszilliereinheit und Einbau eines gemeinsamen Stützrahmens für mehrere Knüppelstränge im Bereich des Maschinenkopfs der Stranggießanlage, wobei der gemeinsame Stützrahmen mit dem Festland der Stranggießanlage verbunden wird;
- iii) Einbau je einer Kokille zum Vergießen von flüssigem Stahl in einen Knüppelstrang und je einer Oszilliereinheit zum Oszillieren der Kokille pro Knüppelstrang, wobei mehrere Oszilliereinheiten mit dem gemeinsamen Stützrahmen verbunden werden;
- iv) Ankoppeln der Wasserversorgung an die Kokillen und Ankoppeln der Hydraulikversorgung an die Oszilliereinheiten;
- v) Abkoppeln der Wasserversorgung und Hydraulikversorgung von den Segmenten;
- vi) Lösen der Segmente von der Hinterkonstruktion der Stranggießanlage und Ausbau der Segmente aus der Stranggießanlage;
- vii) Verbinden von Rollenpaaren zum Führen mehrerer Knüppelstränge mit der Hinterkonstruktion, wobei die Knüppelstränge durch ein Rollenpaar beidseitig gestützt und durch Kühldüsen abgekühlt werden;
- viii) Ankoppeln der Kühldüsen der Rollenpaare an die Wasserversorgung;
- ix) Verbinden von zumindest einer Auszugseinheit zum Ausziehen mehrerer Knüppelstränge aus den Kokillen mit der Hinterkonstruktion;
- x) Ankoppeln der Auszugseinheit an die Hydraulikversorgung.
- a mold for casting liquid steel into a slab strand and an oscillating unit for oscillating the mold;
- a strand guide for supporting, guiding and cooling the slab strand, wherein the strand guide several hydraulically having adjustable segments, the slab strand is cooled in the segments by cooling nozzles and optionally reduced in thickness, the segments are mechanically connected to a rear structure and each with a hydraulic and a water supply; comprising the method steps:
- i) disconnecting the water supply from the mold and uncoupling the hydraulic supply from the oscillating unit;
- ii) removal of the mold and the oscillating unit and installation of a common support frame for a plurality of billet strands in the region of the machine head of the continuous casting plant, wherein the common support frame is connected to the mainland of the continuous casting plant;
- iii) installation of a mold for pouring liquid steel into a billet strand and a respective oscillating unit for oscillating the mold per billet strand, wherein a plurality of oscillating units are connected to the common support frame;
- iv) coupling the water supply to the dies and coupling the hydraulic supply to the oscillating units;
- v) disconnecting the water supply and hydraulic supply from the segments;
- vi) releasing the segments from the rear construction of the continuous casting plant and removing the segments from the continuous casting plant;
- vii) connecting pairs of rollers for guiding a plurality of billet strands to the rear structure, the billet strands being supported on both sides by a pair of rollers and cooled by cooling nozzles;
- viii) coupling the cooling nozzles of the pairs of rollers to the water supply;
- ix) connecting at least one pull-out unit for pulling out a plurality of billet strands from the molds with the rear construction;
- x) coupling the pull-out unit to the hydraulic supply.
Durch das erfindungsgemäße Umbauverfahren können sowohl Brammen-Stranggießanlage mit einer geraden oder einer gebogenen Kokille rasch in eine mehrsträngige Knüppel-Stranggießanlage umgebaut werden. Hierzu wird zuerst der Maschinenkopf (d.h. die Kokille und der Oszilliereinheit) der Brammen-Stranggießanlage umgebaut. Nach dem Abkoppeln der Wasserversorgung von der Kokille und der Hydraulikversorgung von der Oszilliereinheit und dem Ausbau des Maschinenkopfs der Brammen-Stranggießanlage, wird ein gemeinsamer Stützrahmen eingebaut und mit dem Festland der Stranggießanlage verbunden. In den gemeinsamen Stützrahmen werden die Oszilliereinheiten und die zu oszillierenden Kokillen der Knüppel-Stranggießanlage eingesetzt. Durch den gemeinsamen Stützrahmen kann der Ein- und Ausbau des Maschinenkopfs der mehrsträngigen Knüppel-Stranggießanlage sehr rasch erfolgen.By the conversion process according to the invention can both continuous slab caster with a straight or a curved Mold are quickly converted into a multi-strand billet continuous casting. For this purpose, first the machine head (ie the mold and the oscillating unit) of the slab continuous casting plant is rebuilt. After uncoupling the water supply from the mold and the hydraulic supply from the oscillating unit and removing the machine head of the continuous slab caster, a common support frame is installed and connected to the mainland of the continuous caster. In the common support frame, the oscillating units and the oscillating molds of the billet continuous casting are used. Due to the common support frame, the installation and removal of the machine head of the multi-strand billet continuous casting can be done very quickly.
Bei einer besonders vorteilhaften Ausführungsform werden die Oszilliereinheiten und die Kokillen der mehrsträngige Knüppel-Stranggießanlage nicht einmal vom gemeinsamen Stützrahmen gelöst, sondern als Modul ein- und ausgebaut.In a particularly advantageous embodiment, the oscillating units and molds of the multi-strand billet continuous casting machine are not even solved by the common support frame, but installed and removed as a module.
Nach dem Ankoppeln der Wasserversorgung an die Kokillen und dem Ankoppeln der Hydraulikversorgung an die Oszilliereinheiten ist die Funktionsfähigkeit des Maschinenkopfs wiederhergestellt. Anschließend werden die Segmente der Brammen-Stranggießanlage von der Hinterkonstruktion gelöst und ausgebaut, vorzugsweise über Schienen ausgefahren. Zum Führen und Stützen der Knüppelstränge werden Rollenpaaren mit der bestehenden Hinterkonstruktion verbunden. Um die Knüppelstränge im Bereich der Rollenpaare abkühlen zu können, werden die Kühldüsen der Rollenpaare an die bestehende Wasserversorgung der Stranggießmaschine angeschlossen. Schließlich wird zumindest eine Auszugseinheit - z.B. in Form eines Rollenpaares mit angetriebenen Rollen - zum Ausziehen mehrerer Knüppelstränge aus den Kokillen mit der Hinterkonstruktion der Stranggießanlage verbunden und die Auszugseinheit an die Hydraulikversorgung der Stranggießanlage verbunden.After the coupling of the water supply to the molds and the coupling of the hydraulic supply to the oscillating units, the functioning of the machine head is restored. Subsequently, the segments of the continuous slab caster are released from the rear construction and removed, preferably extended over rails. To guide and support the billet strands pairs of rollers are connected to the existing rear construction. In order to cool the billet strands in the area of the roller pairs, the cooling nozzles of the roller pairs are connected to the existing water supply of the continuous casting machine. Finally, at least one extraction unit - e.g. in the form of a pair of rollers with driven rollers - connected to pull out a plurality of billet strands from the molds with the rear construction of the continuous casting and the pull-out unit connected to the hydraulic supply of the continuous casting.
Sowohl bei den Wasser- und Hydraulikversorgungen ist es vorteilhaft, wenn das An- und Abkoppeln dieser Verbindungen durch das An- bzw. Abkoppeln von sog. Schnellkupplungen erfolgt. Dadurch kann die Umbauzeit weiter reduziert werden.Both in the water and hydraulic supplies, it is advantageous if the coupling and uncoupling of these compounds by coupling or uncoupling so-called quick couplings. As a result, the conversion time can be further reduced.
Falls ein Knüppelstrang die Kokille der Knüppel-Stranggießmaschine gebogen mit einem Krümmungsradius verlässt, ist es vorteilhaft, wenn die Rollenpaare in der Strangführung der Knüppel-Stranggießmaschine derart mit der Hinterkonstruktion verbunden werden, dass für den Krümmungsradius R101 der Knüppel-Stranggießmaschine gilt 0,9*R1 ≤ R101 ≤ 1,1*R1, bevorzugt R101=R1, wobei R1 der Krümmungsradius der Brammen-Stranggießmaschine ist. Durch diese Maßnahme wird der bestehende Platz in der Stranggießanlage bestens ausgenutzt; außerdem ermöglich diese Wahl hohe Gießgeschwindigkeiten.If a billet strand leaves the mold of the billet continuous casting machine bent with a radius of curvature, it is advantageous if the pairs of rolls in the strand guide of the billet continuous casting machine are connected to the rear construction such that the radius of curvature R 101 of the billet continuous casting machine is 0.9 * R 1 ≤ R 101 ≤ 1.1 * R 1 , preferably R 101 = R 1 , where R 1 is the radius of curvature of the slab continuous casting machine. This measure makes the best use of the existing space in the continuous casting plant; In addition, this choice allows high casting speeds.
Falls ein Knüppelstrang die Kokille der Knüppel-Stranggießmaschine gerade in vertikaler Richtung verlässt, ist es vorteilhaft, wenn nach der Kokille der Knüppel-Stranggießmaschine eine Biegeeinrichtung zum Umlenken des vertikalen Knüppelstrangs auf eine Kreisbogenbahn mit Radius angeordnet wird.If a billet strand leaves the mold of the billet continuous casting machine in the vertical direction, it is advantageous if, after the mold of the billet continuous casting machine, a bending device for deflecting the vertical billet strand is arranged on an arcuate path with radius.
Um den vorgegebenen Platz bestens auszunutzen und hohe Gießgeschwindigkeiten zu ermöglichen, ist es vorteilhaft, wenn die Rollenpaare in der Strangführung der Knüppel-Stranggießmaschine derart mit der Hinterkonstruktion verbunden werden, dass für den Krümmungsradius R101 der Knüppel-Stranggießmaschine gilt 0,5*R1 ≤ R101 ≤ R1, wobei R1 der Krümmungsradius der Brammen-Stranggießmaschine ist.In order to make best use of the given space and to enable high casting speeds, it is advantageous if the pairs of rolls in the strand guide of the billet continuous casting machine are connected to the rear construction in such a way that 0.5 * R 1 holds for the radius of curvature R 101 of the billet continuous casting machine ≤ R 101 ≤ R 1 , where R 1 is the radius of curvature of the slab continuous casting machine.
Die erfindungsgemäße Aufgabe wird ebenfalls durch ein Verfahren nach Anspruch 7 gelöst. Bevorzugte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.The object of the invention is also achieved by a method according to
Konkret erfolgt die Lösung der Aufgabe durch ein Verfahren zum Umbau einer mehrsträngigen Knüppel-Stranggießanlage in eine einsträngige Brammen-Stranggießanlage, wobei die Knüppel-Stranggießanlage umfasst:
- einen gemeinsamen Stützrahmen für mehrere Knüppelstränge, und pro Knüppelstrang je eine Kokille zum Vergießen von flüssigem Stahl in einen Knüppelstrang und je eine Oszilliereinheit zum Oszillieren der Kokille;
- eine Strangführung zum Stützen, Führen und Abkühlen der Knüppelstränge, wobei die Strangführung mehrere Rollenpaare zum Führen mehrerer Knüppelstränge und Kühldüsen zum Abkühlen der Knüppelstränge aufweist, wobei die Rollenpaare mit einer Hinterkonstruktion der Stranggießanlage verbunden sind;
- zumindest eine Auszugseinheit zum Ausziehen der Knüppelstränge aus den Kokillen;
- i) Abkoppeln der zumindest einen Auszugseinheit von der Hydraulikversorgung der Stranggießanlage, Lösen der Auszugseinheit von der Hinterkonstruktion und Entfernen der Auszugseinheit aus der Stranggießanlage;
- ii) Abkoppeln der Kühldüsen der Rollenpaare von der Wasserversorgung;
- iii) Lösen der Rollenpaare von der Hinterkonstruktion und Entfernen der Rollenpaare aus der Stranggießanlage;
- iv) Einbau mehrerer hydraulisch verstellbarer Segmente zum Führen und Kühlen des Brammenstrangs in die Stranggießanlage, Verbinden der Segmente mit der Hinterkonstruktion, und Ankoppeln der Segmente an die Wasser- und die Hydraulikversorgung der Stranggießanlage, sodass der Brammenstrang in den Segmenten durch Kühldüsen abgekühlt und gegebenenfalls in seiner Dicke reduziert wird;
- v) Abkoppeln der Wasserversorgung von den Kokillen und Abkoppeln der Hydraulikversorgung von der Oszilliereinheiten der Stranggießanlage;
- vi) Ausbau des gemeinsamen Stützrahmens und der darin eingesetzten Kokillen und Oszilliereinheiten der Stranggießanlage und Einbau einer Kokille zum Vergießen von flüssigem Stahl in einen Brammenstrang und einer Oszilliereinheit zum Oszillieren der Kokille;
- vii) Ankoppeln der Wasserversorgung an die Kokille und Ankoppeln der Hydraulikversorgung an die Oszilliereinheit der Stranggießanlage.
- a common support frame for a plurality of billet strands, and per billet strand per one mold for pouring liquid steel into a billet strand and a respective oscillating unit for oscillating the mold;
- a strand guide for supporting, guiding and cooling the billet strands, the strand guide having a plurality of pairs of rolls for guiding a plurality of billet strands and cooling nozzles for cooling the billet strands, the pairs of rolls being connected to a rear construction of the continuous casting plant;
- at least one extraction unit for removing the billet strands from the molds;
- i) decoupling the at least one extraction unit from the hydraulic supply of the continuous casting plant, releasing the extraction unit from the rear construction and removing the extraction unit from the continuous casting plant;
- ii) decoupling the cooling nozzles of the roller pairs from the water supply;
- iii) detaching the pairs of rollers from the rear construction and removing the pairs of rollers from the continuous casting machine;
- iv) incorporating a plurality of hydraulically adjustable segments for guiding and cooling the slab strand into the continuous casting plant, connecting the segments to the rear structure, and coupling the segments to the water and hydraulic supply to the continuous casting plant so that the slab strand in the segments is cooled by cooling nozzles and optionally in its thickness is reduced;
- v) decoupling the water supply from the molds and uncoupling the hydraulic supply from the oscillating units of the continuous casting plant;
- vi) removal of the common support frame and the dies used therein and oscillating units of the continuous casting plant and installation of a mold for pouring liquid steel into a slab strand and an oscillating unit for oscillating the mold;
- vii) coupling the water supply to the mold and coupling the hydraulic supply to the oscillating unit of the continuous caster.
Auch bei diesem Verfahren kann der Maschinenkopf der mehrsträngigen Knüppel-Stranggießanlage durch den gemeinsamen Stützrahmen rasch entfernt werden und der Maschinenkopf der Brammen-Stranggießanlage rasch eingesetzt werden. Außerdem können natürlich wieder die bestehende Hinterkonstruktion sowie die existierenden Wasser- und Hydraulikversorgungen weiterverwendet werden.Also in this method, the machine head of the multi-strand billet continuous casting can be quickly removed by the common support frame and the machine head of the slab continuous casting can be used quickly. In addition, of course, the existing rear construction and the existing water and hydraulic supplies can be reused.
Falls der Brammenstrang die Kokille der Brammen-Stranggießmaschine gebogen mit einem Krümmungsradius verlässt, ist es vorteilhaft, wenn die Segmente in der Strangführung der Brammen-Stranggießmaschine derart mit der Hinterkonstruktion verbunden werden, dass für den Krümmungsradius R1 der Brammen-Stranggießmaschine gilt R101/1,1 ≤ R1 ≤ R101/0,9, bevorzugt R1=R101, wobei R101 der Krümmungsradius der Knüppel-Stranggießmaschine ist. Dadurch wird wieder der bestehende Platz bestens ausgenutzt und eine hohe Gießgeschwindigkeit ermöglicht.If the slab strand leaves the mold of the slab continuous casting machine bent with a radius of curvature, it is advantageous if the segments in the strand guide of the slab continuous casting machine are connected to the rear structure such that the radius of curvature R 1 of the slab continuous casting machine is R 101 / 1.1 ≤ R 1 ≤ R 101 / 0.9, preferably R 1 = R 101 , where R 101 is the radius of curvature of the billet continuous casting machine. This makes the best use of the existing space and enables a high casting speed.
Falls der Brammenstrang die Kokille der Brammen-Stranggießmaschine gerade in vertikaler Richtung verlässt, ist es vorteilhaft, wenn nach der Kokille der Brammen-Stranggießmaschine eine Biegeeinrichtung zum Umlenken des vertikalen Brammenstrangs auf eine Kreisbogenbahn mit Radius angeordnet wird.If the slab strand leaves the mold of the slab continuous casting machine in the vertical direction, it is advantageous if, after the mold of the slab continuous casting machine, a bending device for deflecting the vertical slab strand is arranged on a circle arc path with radius.
Um den vorgegebenen Platz bestens auszunutzen und hohe Gießgeschwindigkeiten zu ermöglichen, ist es vorteilhaft, wenn die Segmente in der Strangführung der Brammen-Stranggießmaschine derart mit der Hinterkonstruktion verbunden werden, dass für den Krümmungsradius R1 der Brammen-Stranggießmaschine gilt R101 ≤ R1 ≤ 2*R101, wobei R101 der Krümmungsradius der Knüppel-Stranggießmaschine ist.In order to make best use of the given space and to enable high casting speeds, it is advantageous if the segments in the strand guide of the slab continuous casting machine are connected to the rear structure in such a way that for the radius of curvature R 1 of the slab continuous casting machine R 101 ≦ R 1 ≦ 2 * R 101 , where R 101 is the radius of curvature of the billet continuous casting machine.
Weitere Vorteile und Merkmale der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung nicht einschränkender Ausführungsbeispiele, wobei die folgenden Figuren zeigen:
-
Fig 1 eine Darstellung einer einsträngigen Brammen-Stranggießanlage -
Fig 2 eine Darstellung einer mehrsträngigen Knüppel-Stranggießanlage mit gerader Kokille -
Fig 3 eine Darstellung einer mehrsträngigen Knüppel-Stranggießanlage mit gebogenen Kokillen -
Fig 4 eine Darstellung eines Maschinenkopfs einer mehrsträngigen Knüppel-Stranggießanlage mit gebogenen Kokillen mit einem gemeinsamen Stützrahmen für drei Stränge
-
Fig. 1 a representation of a single-strand continuous slab caster -
Fig. 2 a representation of a multi-strand billet continuous casting with straight mold -
Fig. 3 a representation of a multi-strand billet continuous casting with curved molds -
Fig. 4 a representation of a machine head of a multi-strand billet caster with curved molds with a common support frame for three strands
In
Oberhalb der eigentlichen Brammen-Stranggießanlage 1 wurden bestimmte Teile, wie die Kokille 2, die Oszilliereinheit 3, die Biegeeinrichtung 5 und ein Segment 4a...4n im Detail dargestellt. Die dicke Linie zwischen der unten dargestellten Brammen-Stranggießanlage 1 und der Detaildarstellung symbolisiert den örtlichen Zusammenhang zwischen den unterschiedlichen Darstellungen.Above the actual continuous slab caster 1 certain parts, such as the mold 2, the
Wie in
Durch den Umbau der einsträngigen Brammen-Stranggießanlage 1 der
Beim Umbau wird wie folgt vorgegangen:
Zuerst wird die Wasserversorgung von der Kokille 2 und die Hydraulikversorgung von der Oszilliereinheit 3 abgekoppelt. Dies erfolgt jeweils durch das Abkoppeln von Schnellkupplungen. Anschließend wird die Kokille 2 und die Oszilliereinheit 3 entfernt und stattdessen ein gemeinsamer Stützrahmen 111 (siehe
First, the water supply from the mold 2 and the hydraulic supply from the
Im Unterschied zu den geraden Kokillen 102 der Knüppel-Stranggießanlage in
In
Da der Umbau einer mehrsträngigen Knüppel-Stranggießanlage 101 in eine einsträngige Brammen-Stranggießanlage 1 im Wesentlichen in umgekehrter Richtung zum Umbau von einer einsträngige Brammen-Stranggießanlage 1 in eine mehrsträngige Knüppel-Stranggießanlage 101 von statten geht, ist auch dieses Umbauverfahren für einen Fachmann ausreichend offenbart.Since the conversion of a multi-strand billet
Beim Umbau der mehrsträngigen Knüppel-Stranggießanlage 101 der
Zuerst werden die Auszugseinheiten 108 von der Hydraulikversorgung der Stranggießanlage 101 abgekoppelt, die Auszugseinheiten 108 von der Hinterkonstruktion 7 gelöst und aus der Stranggießanlage entfernt. Anschließend werden auch die Kühldüsen der Rollenpaare 104a...104g von der Wasserversorgung abgekoppelt, die Rollenpaare von der Hinterkonstruktion 7 gelöst und aus der Stranggießanlage entfernt. Weiters werden mehrere hydraulisch verstellbare Segmente 4a...4n (siehe
First, the pull-out
Für den Fachmann ist klar, dass es weder beim Umbauverfahren nach Anspruch 1 noch beim Umbauverfahren nach Anspruch 7, notwendig ist, die Verfahrensschritte genau in der angegebenen Reihenfolge, z.B. i bis x bei Anspruch 1 bzw. i bis vii bei Anspruch 7, durchzuführen. So könnten z.B. die Schritte v bis x bei Anspruch 1 auch vor den Schritten i bis iv durchgeführt werden. Ähnliches gilt für Anspruch 7.It is clear to a person skilled in the art that it is not necessary either in the conversion process according to claim 1 or in the conversion process according to
Unter den Schutzbereich der Erfindung soll auch der Umbau einer mehrsträngigen (z.B. zweisträngigen) Brammen-Stranggießanlage in mehrere (z.B. wiederum zwei) mehrsträngige Knüppel-Stranggießanlagen und vice versa fallen. In diesem Fall werden die Verfahrensschritte mehrfach, d.h. jeweils einmal pro Brammenstrang, durchgeführt.Within the scope of the invention is also the conversion of a multi-strand (eg two-strand) slab continuous casting into several (eg turn two) multi-strand billet continuous casting and vice versa fall. In this case, the process steps are performed multiple times, ie once each slab strand.
Obwohl die Erfindung im Detail durch die bevorzugten Ausführungsbeispiele näher illustriert und beschrieben wurde, ist die Erfindung nicht durch die offenbarten Beispiele eingeschränkt und andere Variationen können vom Fachmann hieraus abgeleitet werden, innerhalb des Schutzumfangs der beiliegenden Ansprüche.Although the invention has been further illustrated and described in detail by the preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art within the scope of the appended claims.
- 11
- einsträngige Brammen-StranggießanlageSingle-strand slab caster
- 22
- Kokille für die Brammen-StranggießanlageMold for slab caster
- 33
- Oszilliereinheit für die Brammen-StranggießanlageOscillating unit for the continuous slab caster
- 44
- Strangführung für die Brammen-StranggießanlageStrand guide for the continuous slab caster
- 4a...4n4a ... 4n
- Segment der StrangführungSegment of the strand guide
- 55
- Biegeeinrichtungbender
- 66
- FestlandMainland
- 77
- Hinterkonstruktionbehind construction
- 101101
- mehrsträngige Knüppel-Stranggießanlagemulti-strand billet continuous caster
- 102102
- Kokille für die Knüppel-StranggießanlageMold for the billet continuous caster
- 103103
- Oszilliereinheit für die Knüppel-StranggießanlageOscillating unit for the billet continuous casting plant
- 104104
- Strangführung für die Knüppel-StranggießanlageStrand guide for the billet continuous casting plant
- 104a...104i104a ... 104i
- Rollenpaarroller pair
- 105105
- Biegeeinrichtung für die Knüppel-StranggießanlageBending device for the billet continuous casting plant
- 108108
- Auszugseinheitpull-out unit
- 111111
- gemeinsamer Stützrahmencommon support frame
- BB
- Brammenstrangcontinuous slab
- KK
- Knüppelstrangstick strand
- R,R1,R101 R, R 1 , R 101
- Krümmungsradiusradius of curvature
Claims (12)
- Method for converting a single-strand continuous casting plant (1) for slabs into a multi-strand continuous casting plant (101) for billets, wherein the continuous casting plant (1) for slabs comprises- a mould (2) for casting liquid steel into a slab strand (B) and an oscillating unit (3) for oscillating the mould (2);- a strand guide (4) for supporting, guiding and cooling the slab strand (B), wherein the strand guide (4) has a plurality of hydraulically adjustable segments (4a...4n) the slab strand (B) is cooled in the segments (4a...4n) by cooling nozzles and, where appropriate, reduced in its thickness, and the segments (4a...4n) are mechanically connected to a rear construction (7) and fluidically connected to in each case a hydraulic supply and a water supply;comprising the following method steps:i) decoupling the water supply from the mould (2) and decoupling the hydraulic supply from the oscillating unit (3) of the continuous casting plant;ii) removing the mould (2) and the oscillating unit (3) and installing a common support frame (111) for a plurality of billet strands (K) in the region of the machine head of the continuous casting plant, wherein the common support frame (111) is connected to the main body (6) of the continuous casting plant;iii) installing in each case one mould (102) for casting liquid steel into a billet strand (K) and in each case one oscillating unit (103) for oscillating the mould (102) per billet strand (K), wherein a plurality of oscillating units (103) are connected to the common support frame (111);iv) coupling the water supply to the moulds (2) and coupling the hydraulic supply to the oscillating units (3) ;v) decoupling the water supply and hydraulic supply from the segments (4a...4n);vi) releasing the segments (4a...4n) from the rear construction (7) of the continuous casting plant and removing the segments (4a...4n) from the continuous casting plant;vii) connecting roller pairs (104a...104i) for guiding a plurality of billet strands (K) to the rear construction (7), wherein the billet strands (K) are supported on both sides by a roller pair (104a...104i) and cooled by cooling nozzles;viii) coupling the cooling nozzles of the roller pairs (104a...104i) to the water supply;ix) connecting at least one extraction unit (108) for extracting a plurality of billet strands (K) from the moulds (102) to the rear construction (7);x) coupling the extraction unit (108) to the hydraulic supply.
- Method according to Claim 1, characterized in that a billet strand (K) leaves the mould (102) of the continuous casting machine (101) for billets in a curved manner with a radius of curvature (R, R101).
- Method according to Claim 2, characterized in that the roller pairs (104a...104i) in the strand guide (104) of the continuous casting machine (101) for billets are connected to the rear construction (7) in such a way that the following holds for the radius of curvature R101 of the continuous casting machine (101) for billets: 0.9*R1 ≤ R101 ≤ 1.1 *R1, preferably R101 = R1, where R1 is the radius of curvature of the continuous casting machine (1) for slabs.
- Method according to Claim 1, characterized in that a billet strand (K) leaves the mould (102) of the continuous casting machine (101) for billets in a rectilinear manner in vertical direction.
- Method according to Claim 4, characterized in that a bending device (105) for deflecting the vertical billet strand (K) onto a circular arc with radius (R101) is arranged downstream of the mould (102) of the continuous casting machine (101) for billets.
- Method according to either of Claims 4 and 5, characterized in that the roller pairs (104a...104i) in the strand guide (104) of the continuous casting machine (101) for billets are connected to the rear construction (7) in such a way that the following holds for the radius of curvature R101 of the continuous casting machine (101) for billets: 0.5*R1 ≤ R101 ≤ R1, where R1 is the radius of curvature of the continuous casting machine (1) for slabs.
- Method for converting a multi-strand continuous casting plant (101) for billets into a single-strand continuous casting plant (1) for slabs, wherein the continuous casting plant (101) for billets comprises:- a common support frame (111) for a plurality of billet strands (K), and, per billet strand (K), in each case one mould (102) for casting liquid steel into a billet strand (K) and in each case one oscillating unit (103) for oscillating the mould (102);- a strand guide (104) for supporting, guiding and cooling the billet strands (K), wherein the strand guide (104) has a plurality of roller pairs (104a...104i) for guiding a plurality of billet strands (K) and cooling nozzles for cooling the billet strands (K), wherein the roller pairs (104a...104i) are connected to a rear construction (7) of the continuous casting plant;- at least one extraction unit (108) for extracting the billet strands (K) from the moulds (102);comprising the following method steps:i) decoupling the at least one extraction unit (108) from the hydraulic supply of the continuous casting plant, releasing the extraction unit (108) from the rear construction (7) and removing the extraction unit (108) from the continuous casting plant;ii) decoupling the cooling nozzles of the roller pairs (104a...104i) from the water supply;iii) releasing the roller pairs (104a...104i) from the rear construction (7) and removing the roller pairs (104a...104i) from the continuous casting plant;iv) installing a plurality of hydraulically adjustable segments (4a...4n) for guiding and cooling the slab strand (B) into the continuous casting plant, connecting the segments (4a...4n) to the rear construction (7), and coupling the segments (4a...4n) to the water supply and the hydraulic supply of the continuous casting plant, with the result that the slab strand (B) is cooled in the segments (4a...4n) by cooling nozzles and, where appropriate, reduced in its thickness;v) decoupling the water supply from the moulds (102) and decoupling the hydraulic supply from the oscillating units (103) of the continuous casting plant;vi) removing the common support frame (111) and the moulds (102) and oscillating units (103) of the continuous casting plant that are inserted therein and installing a mould (2) for casting liquid steel into a slab strand (B) and an oscillating unit (3) for oscillating the mould (2);vii) coupling the water supply to the mould (2) and coupling the hydraulic supply to the oscillating unit (3) of the continuous casting plant
- Method according to Claim 7, characterized in that the slab strand (B) leaves the mould (2) of the continuous casting machine (1) for slabs in a curved manner with a radius of curvature (R, R1).
- Method according to Claim 8, characterized in that the segments (4a...4n) in the strand guide (4) of the continuous casting machine (1) for slabs are connected to the rear construction (7) in such a way that the following holds for the radius of curvature R1 of the continuous casting machine (1) for slabs: R101/1.1 ≤ R1 ≤ R101/0.9, preferably R1 = R101, where R101 is the radius of curvature of the continuous casting machine (101) for billets.
- Method according to Claim 7, characterized in that a slab strand (B) leaves the mould (2) of the continuous casting machine (1) for slabs in a rectilinear manner in the vertical direction.
- Method according to Claim 10, characterized in that a bending device (5) for deflecting the vertical slab strand (B) onto a circular arc path with radius (R1) is arranged downstream of the mould (2) of the continuous casting machine (1) for slabs.
- Method according to either of Claims 10 and 11, characterized in that the segments (4a...4n) in the strand guide (4) of the continuous casting machine (1) for slabs are connected to the rear construction (7) in such a way that the following holds for the radius of curvature R1 of the continuous casting machine (1) for slabs: R101 ≤ R1 ≤ 2*R101, where R101 is the radius of curvature of the continuous casting machine (101) for billets.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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ATA50676/2014A AT516300B1 (en) | 2014-09-23 | 2014-09-23 | Process for the rapid conversion of a single-strand slab caster into a multi-strand billet continuous caster and vice versa |
PCT/EP2015/066820 WO2016045818A1 (en) | 2014-09-23 | 2015-07-23 | Method for quickly converting a single-train continuous casting plant for slabs into a multi-train continuous casting plant for billets, and vice versa |
Publications (2)
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EP3197618A1 EP3197618A1 (en) | 2017-08-02 |
EP3197618B1 true EP3197618B1 (en) | 2018-10-10 |
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EP15748193.8A Not-in-force EP3197618B1 (en) | 2014-09-23 | 2015-07-23 | Method for quickly converting a single-train continuous casting plant for slabs into a multi-train continuous casting plant for billets, and vice versa |
Country Status (4)
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EP (1) | EP3197618B1 (en) |
AT (1) | AT516300B1 (en) |
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WO (1) | WO2016045818A1 (en) |
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CN107790657A (en) * | 2017-10-24 | 2018-03-13 | 东北特钢集团大连特殊钢有限责任公司 | Big camber radius plectane base compatibility conticaster and its technique |
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CN108856309B (en) * | 2018-07-03 | 2024-03-22 | 宣化钢铁集团有限责任公司 | Steel rolling interface steering roller way adopting proportional servo control |
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DE1508971A1 (en) * | 1966-09-06 | 1969-12-04 | Schloemann Ag | Continuous caster for the optional production of slabs and billets |
DE1957689A1 (en) * | 1969-11-17 | 1971-05-27 | Demag Ag | Continuous casting plant for metals, especially steel |
DE1957690A1 (en) * | 1969-11-17 | 1971-05-27 | Demag Ag | Rail mounting for support frames for con- - tinuous casting plant |
JPS5290421A (en) * | 1976-01-27 | 1977-07-29 | Ishikawajima Harima Heavy Ind | Pinch roll apparatus in poly strand continuous casting equipment |
SU928717A1 (en) * | 1979-07-09 | 1986-08-23 | Предприятие П/Я Г-4986 | Multistrand continuous caster of billets |
AT373516B (en) * | 1982-06-23 | 1984-01-25 | Voest Alpine Ag | CONTINUOUS CASTING PLANT |
DE3706720C2 (en) * | 1987-03-02 | 1994-04-21 | Voest Alpine Ind Anlagen | Continuous caster with two continuous molds arranged side by side |
DE4316050C2 (en) * | 1993-05-13 | 1998-02-12 | Voest Alpine Ind Anlagen | Thin slab caster |
CN1096899C (en) * | 1997-08-08 | 2002-12-25 | 瑞士商康凯斯史丹股份公司 | Device and method for replacing interchangeable part of ingot arrangement |
AT414221B (en) * | 2004-06-09 | 2006-10-15 | Voest Alpine Ind Anlagen | CONTINUITY CASTING SYSTEM AND METHOD FOR OPTIONALLY CASTING A WIDE METAL STRIP OR MAXIMUM TWO MORE THAN MERRY METAL STRINGS |
AT506836B1 (en) * | 2008-05-23 | 2011-08-15 | Siemens Vai Metals Tech Gmbh | CONTINUOUS CASTING SYSTEM FOR CASTING A METAL STRUCTURE WITH BUTTON OR SURFACE CROSS SECTION |
-
2014
- 2014-09-23 AT ATA50676/2014A patent/AT516300B1/en not_active IP Right Cessation
-
2015
- 2015-07-23 RU RU2017107961A patent/RU2689259C2/en not_active IP Right Cessation
- 2015-07-23 EP EP15748193.8A patent/EP3197618B1/en not_active Not-in-force
- 2015-07-23 WO PCT/EP2015/066820 patent/WO2016045818A1/en active Application Filing
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CN107790657A (en) * | 2017-10-24 | 2018-03-13 | 东北特钢集团大连特殊钢有限责任公司 | Big camber radius plectane base compatibility conticaster and its technique |
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RU2017107961A (en) | 2018-10-24 |
RU2689259C2 (en) | 2019-05-24 |
RU2017107961A3 (en) | 2018-11-13 |
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WO2016045818A1 (en) | 2016-03-31 |
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