EP0040383A1 - Method and apparatus for stirring the molten metal in a continuous-casting strand - Google Patents
Method and apparatus for stirring the molten metal in a continuous-casting strand Download PDFInfo
- Publication number
- EP0040383A1 EP0040383A1 EP81103569A EP81103569A EP0040383A1 EP 0040383 A1 EP0040383 A1 EP 0040383A1 EP 81103569 A EP81103569 A EP 81103569A EP 81103569 A EP81103569 A EP 81103569A EP 0040383 A1 EP0040383 A1 EP 0040383A1
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- Prior art keywords
- pouring
- mold
- melt
- jet
- magnetic field
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003756 stirring Methods 0.000 title claims abstract description 9
- 239000002184 metal Substances 0.000 title claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 6
- 238000009749 continuous casting Methods 0.000 title claims description 4
- 239000000155 melt Substances 0.000 claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000035515 penetration Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000013467 fragmentation Methods 0.000 claims 2
- 238000006062 fragmentation reaction Methods 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 239000002893 slag Substances 0.000 description 15
- 239000002245 particle Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/114—Treating the molten metal by using agitating or vibrating means
- B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
Definitions
- the invention relates to a method for stirring in a casting strand according to the preamble of claim 1 and an apparatus for performing the method.
- the walls of the mold consist of copper plates up to 80 mm thick, which makes it very difficult for the magnetic field to penetrate the melt, even at low frequencies.
- the penetration depth in copper is 50-60 mm at, for example, 1.5 Hz, and thus at least this penetration depth must be overcome by the field before it reaches the melt. The difficulty of interrupting or reducing the penetration of the pouring jet with conventional stirrers in the mold is thus evident.
- the invention has for its object to develop a method and implementation arrangement by which the difficulties outlined above are eliminated.
- a method is proposed according to the preamble of claim 1, which according to the invention has the features mentioned in the characterizing part of claim 1.
- a device for performing the method is characterized by the features mentioned in claim 7.
- a static magnetic field with a large penetration depth is thus generated and the high speed of the steel in the pouring jet is used when penetrating into the melt in the mold (penetration speed).
- This penetration speed is of the order of 1 to 1.5 m / sec.
- the movement of the steel is slowed down by the magnetic field and the pouring jet splinters.
- the mode of operation is comparable to an eddy current brake.
- the penetration depth is reduced and the majority of the slag is deposited on the surface and no longer gets stuck on the inside of the strand shell that has already solidified.
- the static magnetic field can also be generated by one or more permanent magnets.
- a simple and effective device for "stirring" in the mold is thus obtained, the slag being separated off without getting caught in the blank.
- the poles (the attack surface of the field) are arranged at an acute angle to the pouring jet in such a way that the pouring jet essentially splits upwards. This prevents slag from being pressed downwards in the casting direction, where it can get caught.
- more heat is supplied to the surface in the mold, especially on the pouring tube.
- the momentum exerted by the pouring jet on the melt in the mold is reduced and its effect is spread out from the point of entry into the melt in such a way that the stream of the pouring jet does not hit the narrow side of the blank, as a result of which slag accumulation at the edge of the blank and one Shell erosion can be reduced.
- the invention therefore makes it possible to also produce steel with a high surface quality in terms of slag purity.
- FIG. 1 shows how a pouring stream comes out of a pouring box 1 or another melt container via a pouring tube 1.
- the pouring tube has a downward double drain, and the impulse is directed to the narrow side of the mold 4, where Schlakke settles in the strand shell. There is also a risk of slag penetration further down in the pouring direction (arrows 5).
- FIG. 2 shows the penetration with pouring jets directed upwards from a pouring tube 8, indicated by the arrows 9.
- FIG. 3 shows how the pouring jets 10 coming from a pouring tube-11 are directed in the melt and are broken up, whereby slag particles are more easily separated on the surface.
- the stirring can also be carried out by conventional multiphase, alternating current-supplied stirrers, which are arranged behind the mold in (on) or in the casting direction, in order to obtain the usual stirring effects during continuous casting.
- the device according to the invention is illustrated in Figures 4 and 5, where a static magnetic field B is shown by a stirrer in the form of an iron core 15 which carries coils 16 'supplied with direct current.
- the field can be directed inward to the left of the pouring tube 18, which has a double drain, and outward to the right of the pouring tube.
- the splitting of the pouring jets 16 and 17 takes place in the manner indicated by arrows in FIG. 3, and the slag only settles to a small extent on the narrow sides of the mold and further down in the pouring direction.
- the device for carrying out the method can be equipped with one or more controllable DC stirrers. It can also contain one or more multi-phase AC stirrers, which are arranged on the mold or in the casting direction behind the mold, with their stirring direction being oriented perpendicularly or in the longitudinal direction to the casting direction.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum Umrühren und zur Beeinflussung der nicht erstarrten Bereiche in einem Gießstrang, der in einer Kokille geformt wird und dem geschmolzener Stahl beispielsweise über ein Gießrohr oder in einem direkten freien Strahl aus einer Pfanne oder einem Zwischenbehälter zugeführt wird. Das Verfahren ist gemäß der Erfindung dadurch gekennzeichnet, daß in der Kokille dort, wo der Gießstrahl (10) in die in der Kokille bereits befindliche Schmelze eindringt, mindestens ein in der Schmelze wirkendes statisches Magnetfeld (19) erzeugt wird, welches die Bewegung des den Gießstrahl bildenden strömenden Metalls ausnutzt und die Geschwindigkeit dieses Metalls in der Schmelze bremst und den Gießstrahl derart zersplittert, ein Impuls geschwächt oder aufgezerrt wird. Das statische Magnetfeld wird dabei entweder durch Gleichstrom gespeiste, auf Eisenkernen sitzenden Spulen oder durch Dauermagnete erzeugt. Zur Erfindung gehört auch eine entsprechende Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for stirring and for influencing the non-solidified areas in a casting strand, which is formed in a mold and is supplied to the molten steel, for example via a pouring tube or in a direct free jet from a pan or an intermediate container. The method according to the invention is characterized in that at least one static magnetic field (19) acting in the melt is generated in the mold where the pouring jet (10) penetrates into the melt already in the mold, which acts on the movement of the Pouring stream forming flowing metal exploits and brakes the speed of this metal in the melt and the pouring stream splinters, an impulse is weakened or distorted. The static magnetic field is generated either by DC-fed coils sitting on iron cores or by permanent magnets. The invention also includes a corresponding device for carrying out the method.
Description
Die Erfindung betrifft ein Verfahren zur Umrührung in einem Gießstrang gemäß dem Oberbegriff des Anspruches 1 sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for stirring in a casting strand according to the preamble of
Beim Stranggießen, bei dem ein Gießstrahl direkt oder durch ein Gießrohr aus einem Gießkasten oder einem anderen Metallschmelzenbehälter mit einer gewissen kinetischen Energie in eine Schmelze, d.h. in die nicht erstarrten Bereiche eines Gießstrangs gelangt, dringt der Gießstrang einschließlich der mitgeführten Schlackenteilchen tief in den Sumpf ein, was eine Abscheidung bzw. ein Hochfließen der Schlacke an die Oberfläche unmöglich macht. Eine große Eindringtiefe des Gießstrahls erhöht die Gefahr, daß Schlackenteilchen an den Seiten des Strangs hängen bleiben und somit ihre Abscheidung an der Oberfläche erschweren.In continuous casting, in which a pouring jet directly or through a pouring tube from a casting box or other metal melt container with a certain kinetic energy into a melt, i.e. If it reaches the non-solidified areas of a casting strand, the casting strand, including the slag particles carried along, penetrates deep into the sump, which makes it impossible for the slag to separate or flow up to the surface. A large penetration depth of the pouring jet increases the risk that slag particles get caught on the sides of the strand and thus make their deposition on the surface more difficult.
Aufgrund des Impulses, den der Gießstrahl der Schmelze versetzt (wir sprechen hier also nicht von dem freien Gießstrahl vor dem Auftreffen auf die Schmelze) wird auch Schlacke an die Kokillenwand und dort in erstarrte und erstarrende Bereiche der Schmelze geschoben, wo sich die Schlacke festsetzen und folglich nicht abgeschieden werden kann.Due to the impulse that the pouring jet gives off the melt (we are not talking about the free pouring jet before it hits the melt), slag is also pushed onto the mold wall and into solidified and solidifying areas of the melt, where the slag settles and consequently cannot be deposited.
Aufgrund einer starken Abkühlung und einer geringen Wärmezufuhr kann auch an der Oberfläche am Gießrohr eine Erstarrung eintreten. Diese drei Faktoren tragen auf verschiedene Art zu einer schlechteren Qualität des fertigen Rohlings bei.Due to strong cooling and a low heat input, solidification can also occur on the surface of the pouring tube. These three factors contribute to the poorer quality of the finished blank in different ways.
Um u.a. die vorgenannten Probleme zu beheben, wäre es wünschenswert, das Strömungsbild in der Kokille steuern zu können, um dadurch einen schlackenfreieren Stahl mit geringerer Rohlingsbehandlung zu erhalten und um auch schwereren Stahl gießen zu können.To i.a. To solve the above-mentioned problems, it would be desirable to be able to control the flow pattern in the mold in order to obtain a slag-free steel with less blank treatment and to be able to cast heavier steel.
Bei der Umrührung der Schmelze in einer Kokille mit Wechselstromumrührern ist es wegen der abschirmenden Wirkung der dicken Kokillenwände schwierig, mit dem magnetischen Feld in die Schmelze einzudringen. Die Wände der Kokille bestehen aus bis zu 80 mm dicken Kupferplatten, wodurch das Eindringen des magnetischen Feldes in die Schmelze auch bei niedrigen Frequenzen sehr erschwert wird. Die Eindringtiefe in Kupfer -beträgt bei beispielsweise 1,5 Hz 50 - 60 mm, und somit muß vom Feld mindestens diese Eindringtiefe überwunden werden, bevor es die Schmelze erreicht. Die Schwierigkeit, mit üblichen Umrührern in der Kokille die Eindringung des Gießstrahls zu unterbrechen oder zu verringern, ist somit offensichtlich.When stirring the melt in a mold with AC stirrers, it is difficult to penetrate the melt with the magnetic field because of the shielding effect of the thick mold walls. The walls of the mold consist of copper plates up to 80 mm thick, which makes it very difficult for the magnetic field to penetrate the melt, even at low frequencies. The penetration depth in copper is 50-60 mm at, for example, 1.5 Hz, and thus at least this penetration depth must be overcome by the field before it reaches the melt. The difficulty of interrupting or reducing the penetration of the pouring jet with conventional stirrers in the mold is thus evident.
Es ist auch zu beachten, daß die Oberfläche der Schmelze in der Kokille nicht beunruhigt werden darf, daß die Wärmezufuhr an die Oberfläche trotzdem jedoch am liebsten verbessert werden soll.It should also be noted that the surface of the melt in the mold must not be disturbed, but that the supply of heat to the surface should nevertheless preferably be improved.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren nebst Durchführungsanordnung zu entwickeln, durch welches die oben aufgezeigten Schwierigkeiten beseitigt werden. Zur Lösung dieser Aufgabe wird ein Verfahren nach dem Oberbegriff des Anspruches 1 vorgeschlagen, welches erfindungsgemäß die im kennzeichnenden Teil des Anspruches 1 genannten Merkmale hat.The invention has for its object to develop a method and implementation arrangement by which the difficulties outlined above are eliminated. To solve this problem, a method is proposed according to the preamble of
Vorteilhafte Weiterbildungen des Verfahrens sind in den Ansprüchen 2 bis 6 genannt.Advantageous further developments of the method are mentioned in
Eine Vorrichtung zur Durchführung des Verfahrens ist durch die in Anspruch 7 genannten Merkmale gekennzeichnet.A device for performing the method is characterized by the features mentioned in
Vorteilhafte Weiterbildungen dieser Vorrichtung sind in den Ansprüchen 8 bis 12 genannt.Advantageous developments of this device are mentioned in claims 8 to 12.
Gemäß der Erfindung wird also ein statisches Magnetfeld mit großer Eindringtiefe erzeugt und die hohe Geschwindigkeit des Stahls im Gießstrahl beim Eindringen in die Schmelze in der Kokille (Eindringgeschwindigkeit) ausgenutzt. Diese Eindringgeschwindigkeit liegt in der Größenordnung von 1 bis 1,5 m/sec. Durch das Magnetfeld wird die Bewegung des Stahls gebremst und der Gießstrahl zersplittert. Die Wirkungsweise ist vergleichbar mit einer Wirbelstrombremse. Die Eindringtiefe wird vermindert und der größte Teil der Schlacke wird auf der Oberfläche abgeschieden und bleibt nicht mehr an der Innenseite der bereits erstarrten Strangschale hängen.According to the invention, a static magnetic field with a large penetration depth is thus generated and the high speed of the steel in the pouring jet is used when penetrating into the melt in the mold (penetration speed). This penetration speed is of the order of 1 to 1.5 m / sec. The movement of the steel is slowed down by the magnetic field and the pouring jet splinters. The mode of operation is comparable to an eddy current brake. The penetration depth is reduced and the majority of the slag is deposited on the surface and no longer gets stuck on the inside of the strand shell that has already solidified.
Das statische Magnetfeld kann auch durch einen oder mehrere Dauermagnete erzeugt werden. Man erhält so eine einfache und wirksame Vorrichtung zum "Umrühren" in der Kokille, wobei die Schlacke abgeschieden wird, ohne im Rohling hängenzubleiben.The static magnetic field can also be generated by one or more permanent magnets. A simple and effective device for "stirring" in the mold is thus obtained, the slag being separated off without getting caught in the blank.
Bei einer bevorzugten Ausführung des Verfahrens beim Gießen mit einem Gießrohr werden die Pole (die Angriffsfläche des Feldes) derart in einem spitzen Winkel zu dem Gießstrahl angeordnet, daß eine Zersplitterung des Gießstrahls im wesentlichen nach oben hin erfolgt. Hierdurch wird vermieden, daß Schlacke in Gießrichtung nach unten gedrückt wird, wo sie hängen bleiben kann. Zugleich wird hierdurch der Oberfläche in der Kokille, insbesondere am Gießrohr, mehr Wärme zugeführt. Der vom Gießstrahl auf die Schmelze in der Kokille ausgeübte Impuls wird vermindert und in seiner Wirkung vom Eintritt in die Schmelze an derart in die Breite gezogen, daß der Strom des Gießstrahls nicht die Schmalseite des Rohlings trifft, wodurch eine Schlackenansammlung am Rand des Rohlings und eine Schalenerosion verringert werden. Durch die Erfindung ist es daher möglich, auch Stahl mit einer hinsichtlich der Schlackenreinheit hohen Oberflächengüte herzustellen.In a preferred embodiment of the method when casting with a pouring tube, the poles (the attack surface of the field) are arranged at an acute angle to the pouring jet in such a way that the pouring jet essentially splits upwards. This prevents slag from being pressed downwards in the casting direction, where it can get caught. At the same time, more heat is supplied to the surface in the mold, especially on the pouring tube. The momentum exerted by the pouring jet on the melt in the mold is reduced and its effect is spread out from the point of entry into the melt in such a way that the stream of the pouring jet does not hit the narrow side of the blank, as a result of which slag accumulation at the edge of the blank and one Shell erosion can be reduced. The invention therefore makes it possible to also produce steel with a high surface quality in terms of slag purity.
Anhand der Figuren soll die Erfindung näher erläutert werden. Es zeigen
Figur 1 und 2 das Eindringen des Gießstrahls in die Schmelze für-verschiedene Arten von Gießrohrm,Figur 3 die Wirkungsweise des Verfahrens und der Vorrichtung nach der Erfindung,Figur 4 und 5 Beispiele für die Anordnung und Ausbildung der Umrührer.
- 1 and 2 the penetration of the pouring jet into the melt for various types of pouring tube,
- FIG. 3 the mode of operation of the method and the device according to the invention,
- Figures 4 and 5 examples of the arrangement and design of the stirrer.
Figur 1 zeigt, wie ein Gießstrahl über ein Gießrohr 1 aus einem nicht gezeigten Gießkasten oder einem anderen Schmelzenbehälter kommt. Das Gießrohr hat einen nach unten gerichteten Doppelabfluß, und der Impuls wird auf die Schmalseite der Kokille 4 gerichtet, wo sich Schlakke in der Strangschale absetzt. Auch besteht die Gefahr einer Schlackenpenetration weiter unten in der Gießrichtung (Pfeile 5).FIG. 1 shows how a pouring stream comes out of a
Figur 2 zeigt die Penetration mit nach oben gerichteten Gießstrahlen aus einem Gießrohr 8, angedeutet durch die Pfeile 9.FIG. 2 shows the penetration with pouring jets directed upwards from a pouring tube 8, indicated by the
Figur 3 zeigt, wie die aus einem Gießrohr-11 kommenden Gießstrahlen 10 in der Schmelze gerichtet sind und zersplittert werden, wobei Schlackenpartikel leichter an der Oberfläche abgeschieden werden.FIG. 3 shows how the
Ein oder mehrere statische Magnetfelder 19, die durch gleichstromgespeiste "Umrührer" oder durch Dauermagnete erzeugt werden, liegen quer zur Gießrichtung mit der Angriffsfläche (den Polen) 12 in einem spitzen Winkel zum Gießstrahl 10, wobei der Strahl im wesentlichen in mehrere nach oben gerichtete Teilstrahlen 13 zersplittert wird und die Schlacke an der Oberfläche abgeschieden werden kann. Nur kleinere (oder gar keine) Teile der Schlackenpartikel bleiben an der Schmalseite oder im Rohling hängen. Man kann eine steuerbare Stabilisierung des Gießstrahls erreichen, indem man unter dem Feld 12 ein weiteres statisches Feld 14 anordnet.One or more static
Eventuell kann die Umrührung zusätzlich durch übliche mehrphasige, mit Wechselstrom gespeiste Umrührer erfolgen, die in (an) oder in Gießrichtung gesehen hinter der Kokille angebracht sind, um auch die üblichen Umrühreffekte beim kontinuierlichen Gießen zu erhalten.Possibly, the stirring can also be carried out by conventional multiphase, alternating current-supplied stirrers, which are arranged behind the mold in (on) or in the casting direction, in order to obtain the usual stirring effects during continuous casting.
Man kann den Gießstrahl auch zersplittern und beeinflussen, wenn dieser nicht durch ein Gießrohr, sondern in einem freien Strahl aus einem Gießkasten in die Schmelze abgegossen wird.You can also split and influence the pouring stream if it is poured into the melt from a pouring box rather than through a pouring tube.
Die Vorrichtung nach der Erfindung ist in den Figuren 4 und 5 veranschaulicht, wo ein statisches Magnetfeld B von einem Umrührer in Form eines Eisenkerns 15, der gleichstromgespeiste Spulen 16' trägt, gezeigt ist. Das Feld kann im Sinne der Zeichenebene links von dem Gießrohr 18, welches einen doppelten Abfluß hat, nach innen und rechts vom Gießrohr nach außen gerichtet sein. Die Zersplitterung der Gießstrahlen 16 und 17 geschieht in der in Figur 3 durch Pfeile angedeuteten Weise, und die Schlacke setzt sich nur in geringem Maße an den Schmalseiten der Kokille und weiter unten in Gießrichtung ab. Die Vorrichtung zur Durchführung des Verfahrens kann mit einem oder mehreren steuerbaren Gleichstromumrührern ausgerüstet sein. Sie kann außerdem einen oder mehrere mehrphasige Wechselstromumrührer enthalten, die an der Kokille oder in Gießrichtung hinter der Kokille angeordnet sind, wobei sie mit ihrer Rührrichtung senkrecht oder in Längsrichtung zur Gießrichtung orientiert sein können.The device according to the invention is illustrated in Figures 4 and 5, where a static magnetic field B is shown by a stirrer in the form of an
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES511019A ES8303148A3 (en) | 1980-05-19 | 1982-03-31 | Method and its corresponding device for agitating the unsolidified regions of a cast steel bar. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8003695 | 1980-05-19 | ||
SE8003695A SE436251B (en) | 1980-05-19 | 1980-05-19 | SET AND DEVICE FOR MOVING THE NON-STANDED PARTS OF A CASTING STRING |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0040383A1 true EP0040383A1 (en) | 1981-11-25 |
EP0040383B1 EP0040383B1 (en) | 1983-10-12 |
Family
ID=20340983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81103569A Expired EP0040383B1 (en) | 1980-05-19 | 1981-05-11 | Method and apparatus for stirring the molten metal in a continuous-casting strand |
Country Status (7)
Country | Link |
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US (1) | US4495984A (en) |
EP (1) | EP0040383B1 (en) |
JP (1) | JPS5717356A (en) |
BR (1) | BR8103058A (en) |
CA (1) | CA1178779A (en) |
DE (1) | DE3161171D1 (en) |
SE (1) | SE436251B (en) |
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EP0092126A1 (en) * | 1982-04-19 | 1983-10-26 | Asea Ab | Method of stirring the non-solidified areas in a cast billet |
FR2530511A1 (en) * | 1982-07-23 | 1984-01-27 | Pechiney Aluminium | METHOD OF CASTING METALS IN WHICH MAGNETIC FIELDS ARE ACTED |
FR2530510A1 (en) * | 1982-07-23 | 1984-01-27 | Pechiney Aluminium | METHOD FOR ELECTROMAGNETIC CASTING OF METALS IN WHICH AT LEAST ONE MAGNETIC FIELD DIFFERENT FROM THE FIELD OF CONFINEMENT IS EFFECTED |
EP0265796A1 (en) * | 1986-10-20 | 1988-05-04 | Asea Ab | Method and device for modifying the metal stream into a continuous casting mold by means of a magnetic field |
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FR2772294A1 (en) * | 1997-12-17 | 1999-06-18 | Rotelec Sa | ELECTROMAGNETIC BRAKING EQUIPMENT OF A MOLTEN METAL IN A CONTINUOUS CASTING SYSTEM |
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JPS5976647A (en) * | 1982-10-22 | 1984-05-01 | Kawasaki Steel Corp | Method and device for stirring molten metal for casting in continuous casting |
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CA531772A (en) * | 1956-10-16 | Continuous Metalcast Co. | Method and apparatus for the continuous casting of metal | |
CH500031A (en) * | 1969-12-12 | 1970-12-15 | Aeg Elotherm Gmbh | Arrangement for controlling the solidification process in the production of continuously cast profiles |
DE2141868A1 (en) * | 1970-08-20 | 1972-02-24 | Republic Steel Corp , Cleveland, Ohio (V St A ) | Method and device for the controlled solidification of cast structures |
FR2187465A1 (en) * | 1972-06-08 | 1974-01-18 | Siderurgie Fse Inst Rech | Continuously casting metal melts - with reduced amount of inclusions, has molten metal introduced below melt surface |
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JPS5419377A (en) * | 1977-07-14 | 1979-02-14 | Sharp Corp | Production of semiconductor device |
US4158380A (en) * | 1978-02-27 | 1979-06-19 | Sumitomo Metal Industries Limited | Continuously casting machine |
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1981
- 1981-05-11 DE DE8181103569T patent/DE3161171D1/en not_active Expired
- 1981-05-11 EP EP81103569A patent/EP0040383B1/en not_active Expired
- 1981-05-15 JP JP7237781A patent/JPS5717356A/en active Granted
- 1981-05-18 BR BR8103058A patent/BR8103058A/en not_active IP Right Cessation
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1982
- 1982-03-25 CA CA000399453A patent/CA1178779A/en not_active Expired
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1983
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CA531772A (en) * | 1956-10-16 | Continuous Metalcast Co. | Method and apparatus for the continuous casting of metal | |
CH500031A (en) * | 1969-12-12 | 1970-12-15 | Aeg Elotherm Gmbh | Arrangement for controlling the solidification process in the production of continuously cast profiles |
DE2141868A1 (en) * | 1970-08-20 | 1972-02-24 | Republic Steel Corp , Cleveland, Ohio (V St A ) | Method and device for the controlled solidification of cast structures |
FR2104863A1 (en) * | 1970-08-20 | 1972-04-21 | Republic Steel Corp | |
FR2187465A1 (en) * | 1972-06-08 | 1974-01-18 | Siderurgie Fse Inst Rech | Continuously casting metal melts - with reduced amount of inclusions, has molten metal introduced below melt surface |
DE2720391A1 (en) * | 1976-05-21 | 1977-12-01 | Asea Ab | ARRANGEMENT IN CONTINUOUS CASTING |
DE2731238A1 (en) * | 1976-07-13 | 1978-01-26 | Siderurgie Fse Inst Rech | METHOD AND DEVICE FOR CONTINUOUS PASTING, IN PARTICULAR STEEL, UNDER THE EFFECT OF A MAGNETIC WALKING FIELD |
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Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0092126A1 (en) * | 1982-04-19 | 1983-10-26 | Asea Ab | Method of stirring the non-solidified areas in a cast billet |
FR2530511A1 (en) * | 1982-07-23 | 1984-01-27 | Pechiney Aluminium | METHOD OF CASTING METALS IN WHICH MAGNETIC FIELDS ARE ACTED |
FR2530510A1 (en) * | 1982-07-23 | 1984-01-27 | Pechiney Aluminium | METHOD FOR ELECTROMAGNETIC CASTING OF METALS IN WHICH AT LEAST ONE MAGNETIC FIELD DIFFERENT FROM THE FIELD OF CONFINEMENT IS EFFECTED |
EP0100290A2 (en) * | 1982-07-23 | 1984-02-08 | Cegedur Societe De Transformation De L'aluminium Pechiney | Process for casting metals using magnetic fields |
EP0100289A2 (en) * | 1982-07-23 | 1984-02-08 | Cegedur Societe De Transformation De L'aluminium Pechiney | Process for the electromagnetical casting of metals using at least one magnetical field differing from another bordering magnetical field |
EP0100290A3 (en) * | 1982-07-23 | 1984-04-11 | Aluminium Pechiney | Process for casting metals using magnetic fields |
EP0100289A3 (en) * | 1982-07-23 | 1984-04-11 | Aluminium Pechiney | Process for the electromagnetical casting of metals using at least one magnetical field differing from another bordering magnetical field |
EP0265796A1 (en) * | 1986-10-20 | 1988-05-04 | Asea Ab | Method and device for modifying the metal stream into a continuous casting mold by means of a magnetic field |
EP0523837A1 (en) * | 1991-06-05 | 1993-01-20 | Kawasaki Steel Corporation | Continuous casting method of steel slab |
EP0550785A1 (en) * | 1992-01-08 | 1993-07-14 | Nkk Corporation | Method for continous casting of slab |
US5540672A (en) * | 1994-06-13 | 1996-07-30 | Kimberly-Clark Corporation | Absorbent article having dual asymmetric leg elastics |
WO1996026029A1 (en) * | 1995-02-22 | 1996-08-29 | Asea Brown Boveri Ab | A method and a device for casting in a mould |
EP0820824A1 (en) * | 1996-06-28 | 1998-01-28 | Sms Schloemann-Siemag Aktiengesellschaft | Electromagnetic brake for a continuous casting mould |
WO1998012008A1 (en) * | 1996-09-19 | 1998-03-26 | Hoogovens Staal B.V. | Continuous casting machine |
EP0832704A1 (en) | 1996-09-19 | 1998-04-01 | Hoogovens Staal B.V. | Continuous casting machine |
AU711675B2 (en) * | 1996-09-19 | 1999-10-21 | Corus Staal B.V. | Continuous casting machine |
US6460606B2 (en) | 1996-09-19 | 2002-10-08 | Corus Staal Bv | Continuous casting machine |
US6332493B1 (en) | 1997-04-18 | 2001-12-25 | Abb Ab | Device for continuous casting of two strands in parallel |
WO1999011404A1 (en) * | 1997-09-03 | 1999-03-11 | Abb Ab | Method and device for continuous or semi-continuous casting of metal |
FR2772294A1 (en) * | 1997-12-17 | 1999-06-18 | Rotelec Sa | ELECTROMAGNETIC BRAKING EQUIPMENT OF A MOLTEN METAL IN A CONTINUOUS CASTING SYSTEM |
WO1999030856A1 (en) * | 1997-12-17 | 1999-06-24 | Rotelec S.A. | Electromagnetic braking device for a smelting metal in a continuous casting installation |
CN1112264C (en) * | 1997-12-17 | 2003-06-25 | 罗泰莱克公司 | Electromagnetic braking device for smelting metal in continuous casting installation |
WO2000007754A1 (en) * | 1998-08-04 | 2000-02-17 | Pohang Iron & Steel Co., Ltd. | Continuous casting method, and device therefor |
US6315029B1 (en) | 1998-08-04 | 2001-11-13 | Pohang Iron & Steel Co., Ltd. | Continuous casting method, and device therefor |
CN1096902C (en) * | 1998-08-04 | 2002-12-25 | 浦项综合制铁株式会社 | Continuous casting method, and device therefor |
Also Published As
Publication number | Publication date |
---|---|
JPH0220349B2 (en) | 1990-05-09 |
SE436251B (en) | 1984-11-26 |
DE3161171D1 (en) | 1983-11-17 |
US4495984A (en) | 1985-01-29 |
SE8003695L (en) | 1981-11-20 |
BR8103058A (en) | 1982-02-09 |
EP0040383B1 (en) | 1983-10-12 |
CA1178779A (en) | 1984-12-04 |
JPS5717356A (en) | 1982-01-29 |
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