[go: up one dir, main page]

EP1259343B1 - Vorrichtung zur beschickung von flüssigem metall in eine stranggusskokille und verfahren zu deren verwendung - Google Patents

Vorrichtung zur beschickung von flüssigem metall in eine stranggusskokille und verfahren zu deren verwendung Download PDF

Info

Publication number
EP1259343B1
EP1259343B1 EP01903983A EP01903983A EP1259343B1 EP 1259343 B1 EP1259343 B1 EP 1259343B1 EP 01903983 A EP01903983 A EP 01903983A EP 01903983 A EP01903983 A EP 01903983A EP 1259343 B1 EP1259343 B1 EP 1259343B1
Authority
EP
European Patent Office
Prior art keywords
mold
outlets
magnetic field
nozzle
molten metal
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.)
Expired - Lifetime
Application number
EP01903983A
Other languages
English (en)
French (fr)
Other versions
EP1259343A1 (de
Inventor
Siebo Kunstreich
Marie-Claude Nove
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rotelec SA
Original Assignee
Rotelec SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rotelec SA filed Critical Rotelec SA
Publication of EP1259343A1 publication Critical patent/EP1259343A1/de
Application granted granted Critical
Publication of EP1259343B1 publication Critical patent/EP1259343B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/122—Accessories for subsequent treating or working cast stock in situ using magnetic fields
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles

Definitions

  • the present invention relates to the continuous casting of metals, in particular of steel. It relates more particularly to the arrival of molten metal from above in a continuous casting mold and, more specifically, the techniques using work of the magnetic fields applied on the level of the ingot mold to modify the flows of molten metal when it arrives there.
  • the molten metal is brought into an ingot mold from a distributor placed at a distance above by a conduit plunging, called "submerged nozzle", the outlet openings of which substantially open in the main casting plane parallel to the large faces under the free surface of molten steel in the mold conventionally covered by a liquid sheet of active dairy.
  • the steelmaker Faced with the problem posed by these hydrodynamic disturbances, the steelmaker has today mainly of two axes of response: one using tools available magnetohydrodynamics suitable for the continuous casting of metals; the other focusing on the very geometry of the pouring nozzle.
  • the electromagnetic actuators that we develop for this purpose can influence the flow of recirculation of liquid metal in the ingot mold after it leaves the nozzle for the brake, or accelerate them, or to make them symmetrical on both sides of the submerged nozzle.
  • electromagnetic brakes were initially developed consisting, in apply a field to a determined height level of the interior space of the mold magnetic through which will create braking forces within the moving metal when it passes through this region (Laplace's forces).
  • a magnetic pole designed as an electromagnet with a salient pole wound, having the form of either a localized stud on either side of the nozzle between it and the small end faces of the mold (EP-A-0040383), either of a horizontal bar extending over the entire width of the large face (WO 92/12814) or two parallel bars spaced along the height in order to frame the outlet openings of the nozzle (WO 96/26029, WO 98/53936).
  • the goal is the same: on the one hand, create with the matched pole of opposite sign arranged opposite on the other side of the mold a through magnetic field whose effect is to slow down the too energetic flow flows which go up towards the free surface, and, on the other hand, to better distribute throughout the section of the mold the main flow of liquid metal going down.
  • liquid metal feed jets of the ingot mold having the ability to be able to dose locally the effect of the electromagnetic action by simple adjustment of the parameters of operation of inductors, such as the intensity of the electric current primary supply, or the pulse frequency, so the sliding speed of the magnetic field.
  • such a sliding magnetic field is generally produced by an inductor having several independent phase windings, of type "polyphase linear motor stator" (generally two or three phase) and which is placed opposite a large face of the mold so parallel to the main plane of casting (FR-A-2.324.395; FR-A-2.324.397).
  • phase windings are connected to a different phase of a polyphase power supply, according to a connection order adequate ensuring the desired slip of the magnetic field along the active face from the inductor in a direction orthogonal to the conductors.
  • the other axis of solutions consists in optimizing the geometry of the submerged part pouring nozzles, in particular outlet openings for molten metal.
  • the goal is always the same: check the distribution of liquid metal flows arriving in the mold.
  • nozzles of the type "caisson" US-A- 464.698, JP-A- 63.76753
  • the submerged part of which has a shape general bulbous like that of a painter's brush or a watering can flattened, from which it is supposed to take over the function.
  • nozzles are in fact fairly wide open at the bottom to favor a loudness in the main plane of casting of the casting jets at low speed but on a large passage section.
  • Their main property is to tend to deliver the metal liquid in an ingot mold in a uniform flow, approaching the ideal flow, said "piston", in which the speed gradient between any two points in a section right would be close to zero and said section would quickly become as close as possible from that of the mold.
  • These box-shaped nozzles are beginning to be widespread industrially, especially on continuous casting installations for thin slabs.
  • the metal recirculation flows towards the free surface of the cast metal can indeed be very attenuated, so much so that we could provide, if necessary, additional openings on the top of the box or on the side to allow emission of molten metal threads directed upwards to ensure thermal input of regular support to the free surface, which we know to be necessary for the smooth running of the casting.
  • This category of solutions also includes straight nozzles with two differentiated pairs of lateral outlets which are oriented according to the main plane of casting, parallel to the large faces of the mold.
  • Gills placed in position bass on the barrel barrel generally deliver down the main metal flow to extract from the mold.
  • the other gills are arranged in the upper part in order to deliver a secondary flow intended to thermally supply the free surface, via a regular supply but at low flow rate of "new" molten metal barely reaching the ingot mold, therefore at high enthalpy.
  • the relatively low cost of this type of nozzle can be a significant economic advantage for such wear elements which must be renewed regularly.
  • the electromagnetic actuators are by more flexible in use, therefore better suited to follow such variations. In return, they are not optimized for any particular operating mode. They control the flow of liquid metal once it reaches the mold and sometimes act as an accelerator, sometimes as a flow brake. But, they don't unlike some of the tips seen above, there is absolutely no concern distribution of the incoming flow rate of molten metal between the upper region of the mold (in direction of the free surface) and the bottom (direction of extraction of the cast product). In moreover, they are relatively expensive in investment cost and in consumption cost. of electrical energy, and involve complex and financially heavy modifications of the ingot mold technology that receives them.
  • the object of the present invention is precisely to provide steelmakers with a means for supplying molten metal to a continuous casting ingot mold which allows easily a quick and precise adjustment of the incoming distribution of the metal flow between the upper and lower regions of the mold.
  • said inducing unit is a unit electromagnetic consisting of at least one electromagnet.
  • said inducing unit is constituted by inductors with multi-winding phase of the "sliding field" type facing either side of said main casting plane, and by a supply associated electric supplying each of said windings with direct current separately, and the means for adjusting the relative intensity of the magnetic field include means for moving the location of the magnetic poles in the air gap of said electromagnetic unit.
  • the pole magnetic field must always deliver a directed magnetic field perpendicular to the wall of the mold opposite which the inductor is mounted. Otherwise, the desired effect is not obtained.
  • the opposite magnetic poles have opposite signs in order to create a magnetic field crossing, that is to say whose lines of force connect the two poles by extending perpendicular to the main casting plane in which the jets of metal through the outlet openings of the nozzle placed in the air gap of the two inducers.
  • a magnetic pole of an inductor as the region of the active face of the inductor where the magnetic field it produces is maximum.
  • the pole is the often protruding end of the metallic mass ferromagnetic coil which characterizes the device.
  • the magnetic pole has no fixed material representation attached to a given ferromagnetic mass of the cylinder head, but can move on the active face of the inductor according to the instantaneous intensity phase alternating currents which supply the conductors and their phase shift.
  • a magnetic field "covers" the gills of nozzles, when these are in a region of the interior of the mold where the maximum prevails magnetic induction produced by this field.
  • the first operating variant cited may be preferred if, compared to the size and distance from the magnetic pole used, the gills of the two categories are distant enough from each other on the body of the nozzle so that the values of the magnetic induction in their respective places can be very different whereas the intensity of the field is maximum for example on the gills covered by this field.
  • the second variant cited is better suited to the case, probably the most inevitably frequent, where all the gills are covered and where only the displacement of the pole can provide sufficient field differential between them to obtain marked the results sought by the invention.
  • the displacement of the magnetic pole will be obtained by a mobile mounting of the electromagnet on a chassis secured to the casting machine provided with means which allow it to be moved on the face of the ingot mold on which it is mounted and immobilize it on the chosen location.
  • the loudspeakers will be covered by the magnetic field main, namely those with the highest output rate of molten metal, (generally those directed downwards), because the variations of the action of this field on outlet flows will be more sensitive than those where the metal flow is weaker.
  • the field magnetic covers downward main outlet openings.
  • the invention uses a traversing magnetic field, displaceable in height at the level of the nozzle, but produced by a fixed inductor unit: a pair of inductors opposite one on the other, each of the type “linear motor stator with sliding magnetic field", paired to be in phase opposition and thus each produce a magnetic field whose lines of force are oriented in the same direction (condition specific to obtaining of a magnetic field called "traversing"), but whose phase windings are connected to individual DC power supplies, independently adjustable each other.
  • a traversing magnetic field displaceable in height at the level of the nozzle, but produced by a fixed inductor unit: a pair of inductors opposite one on the other, each of the type “linear motor stator with sliding magnetic field", paired to be in phase opposition and thus each produce a magnetic field whose lines of force are oriented in the same direction (condition specific to obtaining of a magnetic field called "traversing"), but whose phase windings are connected to individual DC power supplies, independently adjustable each other.
  • This change of position of the poles is obtained by selectively activating the windings of the inductor by simply adjusting the operating parameters of the elementary power supplies, namely, in practice, the intensity of the electric currents they deliver.
  • These settings are achievable instantly, during casting itself if desired, away from the machine completely safe for the operators and completely transparent, that is to say without risk of disruption, even minimal, of the smooth running of the operation of casting.
  • the structure of this type of inductor has been known for a long time, and we also know its use in continuous casting of slabs as a means setting the molten metal in motion according to the height of the mold (see par example the aforementioned patents FR-A-2,324,395; FR-A-2324397).
  • the subject of the invention is also a method of implementing the preferred equipment defined above, which consists of adjusting the intensity of the field magnetic, either by moving the position of the poles of the inductor unit, or by modifying the intensity of the electric current supplying the inductor unit.
  • main casting plane means the vertical median plane P passing through the casting axis S in the center of the mold and parallel to the large faces 22 of it.
  • Figures 1 and 5 are precisely in the casting plane principal P.
  • the other analogous plane, but parallel to the small lateral faces 13 of the ingot mold, is he called secondary casting plan.
  • Figures 3a and 3b are in the secondary flow plan.
  • an inductor unit constituted by a pair of inductors electromagnetic 14, 15, is arranged opposite the end portion of the nozzle.
  • These two inductors are paired so as to each produce a magnetic pole making facing each other, of opposite sign in order to create a crossing magnetic field, perpendicular to the large faces 22.
  • this field through is located in "M” in the lower part of the air gap in order to "cover” the gills of category 7 located at the lower end of the body of the nozzle 6.
  • these inductors are designed so that their magnetic poles can be moved together in the air gap.
  • the displacement will be done according to the height of the mold, since the conductors 16 ... 17 'are arranged horizontally.
  • This joint displacement poles of the inductor over a distance of about 10 or 15 cm approximately, will cause a corresponding displacement of the magnetic field passing through the air gap, therefore a correlative modification of the local magnetic conditions at the level of the outlets differentiated 7 and 8 of the nozzle.
  • the consequence is a sought-after redistribution of metal flows leaving its two categories of gills, the total flow remaining unchanged or almost unchanged.
  • an initial position has been represented at M low magnetic field in the air gap, and in N, a high end position after a vertical displacement operation over a distance "d" towards the openings 8 delivering metal jets up.
  • the displacement of the magnetic field can be obtained by means of a couple "electromagnet” type inductors, therefore with a protruding magnetic pole serving as support for a wired conductor wound around, and mounted movable in translation on a chassis secured to the casting installation.
  • This realization therefore requires a physical displacement of the inducing unit.
  • inductor unit as shown schematically in Figure 2, constituted, opposite one on the other on both sides of the large faces 22 of the mold, by a two inductors with multi-winding phases of the "sliding magnetic field” type.
  • the inductor shown here is a flat inductor of the "linear motor stator” type and two-phase (therefore with two phase windings). Its conductors are straight bars of copper 16, 17, 16 ', 17', four in number, mutually parallel, spaced and arranged horizontally.
  • Each winding is composed of two bars connected between it in series-opposition so that the electric current flows through them in directions opposed.
  • the connected bars can be immediately bars neighboring, such as 17 with 16 'and 16 with 17' (inductor with adjacent poles), or offset, such as 16 with 16 'and 17 with 17' (inductor with distributed poles), as shown in the Fig.
  • each phase winding is connected to an elementary current power supply continuous (or straightened) and alone and which is independent of that of the other winding.
  • elementary power supplies symbolized in 18 and 19 in FIG. 2, may have their neutral pooled for convenience. They are integrated in an electrical power supply unit 20 provided with means 2 la and 21b of autonomous adjustment of the intensities of the currents delivered by each power supply elementary 18, 19 in order to be able, for example, to pass a current of intensity maximum in one winding while the other is inactive (zero intensity), and conversely, as well as all the intermediate settings.
  • the field inductor 14 (15) will no longer be able to create a sliding field as it does ordinarily, but a static magnetic field, including the magnetic pole which can be moved on the active face of the inductor in a direction orthogonal to the conductors, simply by suitably modifying the intensities of current in the two windings.
  • a static magnetic field including the magnetic pole which can be moved on the active face of the inductor in a direction orthogonal to the conductors, simply by suitably modifying the intensities of current in the two windings.
  • the low position "M" of the magnetic pole corresponds to a current maximum in the winding 16.16 ', associated with a zero current in the winding 17.17'.
  • the high position "N" in FIG. 3 corresponds to a maximum current in the winding 17,17 'associated with a zero current in the winding 16,16'.
  • the two paired plane inductors 14 and 15 are configured so that their respective magnetic poles facing each other have opposite polarities. In this way, the magnetic field of one adds to the magnetic field of the other at any point in the air gap between the two inductors.
  • the configuration is of the "through field" type: as illustrated by the arrow marks B, the lines of force join the magnetic poles from one inductor to another while crossing perpendicularly to the main casting plane P, therefore the direction of the metal jets in fusion coming out of the nozzle.
  • the nozzle must have outlet openings in the main casting plane of the ingot mold so that the invention can be applied, it can also be provided with other gills placed elsewhere, for example diagonally in direction of the angles of the mold.
  • the more direction the exit jets are orthogonal to the lines of force of the field the more the invention produces its effects, since the efficiency of the electromagnetic action obtained is directly proportional to the vector product between the magnetic field and the velocity vector of the jets as they exit the nozzle openings.
  • the invention gives better results in the case of the nozzles type "box" seen above, it also accommodates straight nozzles, the main thing is that the submerged nozzles used for casting have outlet openings differentiated into at least two categories by directions - the most 5 often upwards and downwards - which they imprint on the jets of molten metal which come out parallel to the large faces.
  • the invention applies by example also for straight nozzles with differentiated side vents up-down on the barrel of the nozzle.
  • the intensity B of the field magnetic remains constant. However, as already indicated, it can very well vary, in modifying the intensity of the supply currents, the field being able to be moved in same time in the air gap, or separately.
  • the inductor 14 (likewise of course inductor 15) can be split into two identical parts 14a and 14b placed side by side side on the same face of the ingot mold on either side of the casting axis S on which is moreover, conventionally centered the pouring nozzle.
  • autonomous adjustments of the inductive parts 14a and 14b we thus arrive at to better symmetrize the flows in the ingot mold because we intervene on them at the moment they get out of the nozzle.
  • each part inductive is supplied with current by its own elementary power supply (not shown) so that different height adjustments can be made if necessary of the magnetic pole on each of them, as well as separate modifications of the intensities of current flowing through them.
  • inductors of the "sliding field” type we can opt not only for electromagnets, as already mentioned, but also for permanent, natural or industrial magnets.
  • the expression "elementary direct current power supplies" used in the presentation means, not necessarily an addition of unit feeds structurally independent, but still a single polyphase supply, two or three phases, and adjustable frequency, which is set at zero frequency to obtain a direct current.
  • Polyphase power supplies of this type are well known. They are of the inverter type with adjustable chopping threshold and are commonly used to activate electric motors with rotating or sliding magnetic field. Setting as a function of such a power supply to supply the windings of inductor 14, at the rate of one phase per winding, consists in adjusting the inverter to the zero frequency, making such adjustments at selected times so that the intensities of the currents in each phase are, at these times, those which one wishes to obtain in the windings connected to these phases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Confectionery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Claims (12)

  1. Vorrichtung zur Beschickung von flüssigem Metall in eine Kokille einer Stranggussanlage zur Herstellung von brammenartigen Erzeugnissen rechteckigen Querschnitts
    mit einer eingetauchten Düse (6) mit Flüssigmetall-Auslässen, welche in oder im Wesentlichen in der Gießhauptebene (P) parallel zu den großen Seiten der Kokille angeordnet sind, wobei diese Auslässe sich aufgrund ihrer Auslassrichtung gemäß mindestens zwei verschiedenen Kategorien (7, 8) unterscheiden,
    sowie mit einer Induktionseinheit welche den großen Seiten der Kokille derart zugewandt ist, dass sie beidseitig der Gießhauptebene (P) einander gegenüber stehende Magnetpole mit entgegengesetztem Vorzeichen erzeugt,
    dadurch gekennzeichnet, dass
    der Luftspalt der Induktionseinheit (14, 15) weitestgehend durch die Düse (6) umschrieben ist und von der Induktionseinheit ein durchquerendes Magnetfeld ausgeht, welches die Auslässe mindestens einer (7) der verschiedenen Kategorien (7, 8) abdeckt und
    die Vorrichtung Mittel (20, 21) zur Regelung der relativen Intensität des Magnetfeldes am Ort der Auslässe der abgedeckten Kategorie (7) in Bezug auf die Auslässe der anderen Kategorie (8) enthält, so dass die Verteilung des gesamten Flüssigmetall-Durchflusses auf alle Auslässe der Düse (6) geändert werden kann.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Induktionseinheit eine elektromagnetische Einheit ist, welche aus mindestens einem Elektromagnet besteht.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Induktionseinheit aus beidseitig der Gießhauptebene (P) einander zugewandten Induktoren mit Phasen-Mehrfachwicklung des Typs "Gleitmagnetfeld" (14, 15) sowie aus einer zugehörigen elektrischen Speisung zur getrennten Gleichstromspeisung der jeweiligen Wicklungen besteht und dass die Mittel (20, 21) zur Regelung der relativen Intensität des Magnetfeldes Mittel zur Verschiebung der Lage der Magnetpole im Luftspalt der elektromagnetischen Einheit enthalten.
  4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Induktionseinheit aus Dauermagneten besteht.
  5. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Mittel zur Regelung der relativen Intensität des Magnetfeldes einen Variator zum Variieren der Intensität des elektrischen Stromes zur Speisung der Induktionseinheit enthalten.
  6. Vorrichtung nach Anspruch 2 oder 4, dadurch gekennzeichnet, dass die Mittel zur Regelung der relativen Intensität des Magnetfeldes eine bewegliche gleitende Schaltung aus Magneten oder Elektromagneten enthalten.
  7. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Mittel zur Änderung der Lage der Magnetpole im Luftspalt aus Mitteln zur getrennten Regelung der Intensitäten der elektrischen Gleichstrome zur individuellen Speisung der Phasenwicklungen der Induktoren (14, 15) bestehen.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Induktionseinheit beidseitig der Gießhauptebene (P) aus zwei ähnlichen, nebeneinander und beidseitig der Gießachse angeordneten Einheiten (14a, 14b) besteht.
  9. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die eingetauchte Düse eine Düse ist, welche in der Gießhauptebene (P) untere, zum unteren Teil der Kokille gerichtete Hauptauslässe (7) und obere, nach oben gerichtete Nebenauslässe (8) aufweist.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die unteren Hauptauslässe einen einzigen Hauptauslass bilden.
  11. Verfahren zum Einsatz einer Vorrichtung nach Anspruch 1 zur Beschickung von flüssigem Metall in eine Kokille einer Stranggussanlage zur Herstellung von Erzeugnissen rechteckigen Querschnitts, dadurch gekennzeichnet, dass die relative Intensität des von den Magnetpolen der Induktionseinheit erzeugten Magnetfeldes durch Verschiebung der Lage der Magnetpole geregelt wird.
  12. Verfahren zum Einsatz einer Vorrichtung nach Anspruch 1 zur Beschickung von flüssigem Metall in eine Kokille einer Stranggussanlage zur Herstellung von Erzeugnissen rechteckigen Querschnitts, dadurch gekennzeichnet, dass die relative Intensität des von den Magnetpolen der Induktionseinheit erzeugten Magnetfeldes durch Änderung der Intensität des elektrischen Stromes zur Speisung der Induktionseinheit geregelt wird.
EP01903983A 2000-02-29 2001-01-29 Vorrichtung zur beschickung von flüssigem metall in eine stranggusskokille und verfahren zu deren verwendung Expired - Lifetime EP1259343B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0002501A FR2805483B1 (fr) 2000-02-29 2000-02-29 Equipement pour alimenter en metal en fusion une lingotiere de coulee continue, et son procede d'utilisation
FR0002501 2000-02-29
PCT/FR2001/000263 WO2001064373A1 (fr) 2000-02-29 2001-01-29 Equipement pour alimenter en metal en fusion une lingotiere de coulee continue et son procede d'utilisation

Publications (2)

Publication Number Publication Date
EP1259343A1 EP1259343A1 (de) 2002-11-27
EP1259343B1 true EP1259343B1 (de) 2003-09-03

Family

ID=8847496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01903983A Expired - Lifetime EP1259343B1 (de) 2000-02-29 2001-01-29 Vorrichtung zur beschickung von flüssigem metall in eine stranggusskokille und verfahren zu deren verwendung

Country Status (15)

Country Link
US (1) US20020179281A1 (de)
EP (1) EP1259343B1 (de)
JP (1) JP4580135B2 (de)
KR (1) KR100751021B1 (de)
CN (1) CN1192833C (de)
AT (1) ATE248672T1 (de)
AU (1) AU771606B2 (de)
BR (1) BR0108754B1 (de)
CA (1) CA2398724C (de)
DE (1) DE60100707T2 (de)
ES (1) ES2206399T3 (de)
FR (1) FR2805483B1 (de)
RU (1) RU2248859C2 (de)
TW (1) TWI290070B (de)
WO (1) WO2001064373A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4585504B2 (ja) * 2006-12-05 2010-11-24 新日本製鐵株式会社 溶融金属の連続鋳造方法
PL2588262T3 (pl) * 2010-07-02 2020-06-01 Vesuvius U S A Corporation Zanurzeniowa dysza wlotowa
JP5669509B2 (ja) * 2010-07-16 2015-02-12 高橋 謙三 攪拌装置付き連続鋳造用鋳型装置
RU2741611C1 (ru) * 2020-02-27 2021-01-27 Федеральное государственное бюджетное образовательное учреждение высшего образования "Комсомольский-на-Амуре государственный университет" (ФГБОУ ВО "КнАГУ") Устройство для подачи и перемешивания стали в кристаллизаторе установки непрерывной разливки
CN112276025B (zh) * 2020-10-28 2022-03-08 安徽工业大学 一种通过加入电磁场抑制钢包水口形成旋涡的装置及方法
RU2760696C1 (ru) * 2021-02-09 2021-11-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Комсомольский-на-Амуре государственный университет" (ФГБОУ ВО "КнАГУ") Устройство для подачи и перемешивания стали в кристаллизаторе установки непрерывной разливки
CN113102686B (zh) * 2021-04-01 2022-11-29 杭州红山磁性材料有限公司 铝镍钴整体磁钢取向铸造方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4949778A (en) * 1987-12-16 1990-08-21 Kawasaki Steel Corporation Immersion nozzle for continuous casting
JP2773154B2 (ja) * 1988-09-30 1998-07-09 日本鋼管株式会社 鋼の連続鋳造方法
SE500745C2 (sv) * 1991-01-21 1994-08-22 Asea Brown Boveri Sätt och anordning vid gjutning i kokill
LU88034A1 (fr) * 1991-11-13 1993-05-17 Centrem Sa Procédé de brassage électromagnétique en coulée continue
IT1267242B1 (it) * 1994-05-30 1997-01-28 Danieli Off Mecc Scaricatore per bramme sottili
JPH08257692A (ja) * 1995-03-24 1996-10-08 Nippon Steel Corp 連鋳鋳片の製造方法および連続鋳造用浸漬ノズル
JP3410607B2 (ja) * 1996-04-23 2003-05-26 新日本製鐵株式会社 連続鋳造方法及び連続鋳造用浸漬ノズル
IT1290931B1 (it) * 1997-02-14 1998-12-14 Acciai Speciali Terni Spa Alimentatore di metallo fuso per lingottiera di macchine di colata continua.
JPH10263777A (ja) * 1997-03-26 1998-10-06 Nkk Corp 鋼の連続鋳造方法
JPH1147897A (ja) * 1997-07-31 1999-02-23 Nippon Steel Corp 薄肉広幅鋳片連続鋳造用浸漬ノズル
FR2772294B1 (fr) * 1997-12-17 2000-03-03 Rotelec Sa Equipement de freinage electromagnetique d'un metal en fusion dans une installation de coulee continue
JPH11197807A (ja) * 1998-01-08 1999-07-27 Kawasaki Steel Corp 複層鋳片鋳造用浸漬ノズルおよび複層鋳片の製造方法

Also Published As

Publication number Publication date
CA2398724A1 (fr) 2001-09-07
RU2002122721A (ru) 2004-02-20
KR100751021B1 (ko) 2007-08-22
US20020179281A1 (en) 2002-12-05
AU771606B2 (en) 2004-04-01
BR0108754B1 (pt) 2010-06-15
ATE248672T1 (de) 2003-09-15
AU3192501A (en) 2001-09-12
FR2805483B1 (fr) 2002-05-24
EP1259343A1 (de) 2002-11-27
BR0108754A (pt) 2002-12-10
DE60100707D1 (de) 2003-10-09
CN1192833C (zh) 2005-03-16
JP2003525129A (ja) 2003-08-26
CA2398724C (fr) 2008-10-07
FR2805483A1 (fr) 2001-08-31
WO2001064373A1 (fr) 2001-09-07
ES2206399T3 (es) 2004-05-16
RU2248859C2 (ru) 2005-03-27
TWI290070B (en) 2007-11-21
DE60100707T2 (de) 2004-07-29
KR20020086913A (ko) 2002-11-20
CN1392810A (zh) 2003-01-22
JP4580135B2 (ja) 2010-11-10

Similar Documents

Publication Publication Date Title
CA2312876C (fr) Equipement de freinage electromagnetique d'un metal en fusion dans une installation de coulee continue
EP1954427B1 (de) Einstellung des modus von elektromagnetischem rühren über die höhe einer stranggussform
CA1091787A (fr) Procede et dispositif pour le brassage electromagnetique de produits metalliques coules en continu
EP1259343B1 (de) Vorrichtung zur beschickung von flüssigem metall in eine stranggusskokille und verfahren zu deren verwendung
CA2852363C (fr) Procede de revetement au trempe d'une bande d'acier et installation pour sa mise en oeuvre
WO2011117479A1 (fr) Rouleau brasseur pour machine de coulée continue de brames
EP1239981B1 (de) Vertikales stranggiessverfahren für metalle unter verwendung elektromagnetischer felder und anlage zur dessen durchführung
CA1203069A (fr) Procede et dispositif de coulee electromagnetique de metaux
EP0005676A2 (de) Elektromagnetisches Rührverfahren beim Stranggiessen
EP1633512B1 (de) Stranggussanlage zur elektromagnetischen drehung von sich in der düse bewegender metallschmelze
EP0197482A2 (de) Vorrichtung zum Rühren des flüssigen Metalls in einer Stranggiessanlage
EP0542021B1 (de) Verfahren zum elektromagnetischen Führen beim stranggiessen
EP0286960B1 (de) Vorrichtung zum elektromagnetischen Rühren von flüssigem Metall in einer Stranggusslinie
EP2038082B1 (de) Verfahren zum stranggiessen von flachen metallprodukten mit elektromagnetischem rühren und anlage zur durchführung
EP1677928A1 (de) Elektromagnetisches rührverfahren zum stranggiessen von metallprodukten mit einem länglichen querschnitt
EP0010041B1 (de) Verfahren zum Stranggiessen von Metallen, mit Umrühren in der sekundären Kühlungszone
EP0097561B1 (de) Verfahren und Vorrichtung zum elektromagnetischen Rühren stranggegossener Brammen, insbesondere aus Stahl
EP0022711B1 (de) Verfahren und Rührvorrichtung zur qualitativen Verbesserung eines stranggegossenen Metalls
FR2473244A1 (fr) Procede et dispositif de chauffage electrique par induction de produits metalliques, utilisant des champs magnetiques pulses
FR2545017A1 (fr) Procede de coulee continue de metaux, dispositif pour sa mise en oeuvre et lingots obtenus par ledit procede
FR2894167A1 (fr) Equipement pour la coulee en repartiteur de coulee continue des metaux
EP3405301A1 (de) Verfahren für rotierendes elektromagnetisches rühren einer metallschmelze beim giessen eines produkts mit grossem querschnitt und vorrichtung zur durchführung des verfahrens
US6929055B2 (en) Equipment for supplying molten metal to a continuous casting ingot mould

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: 20020410

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROTELEC

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

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: 20030903

Ref country code: IE

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: 20030903

Ref country code: FI

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: 20030903

Ref country code: CY

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: 20030903

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 60100707

Country of ref document: DE

Date of ref document: 20031009

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

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: 20031203

Ref country code: GR

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: 20031203

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20031231

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: 20040129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

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: 20040203

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20030903

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2206399

Country of ref document: ES

Kind code of ref document: T3

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

26N No opposition filed

Effective date: 20040604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20140113

Year of fee payment: 14

Ref country code: ES

Payment date: 20140129

Year of fee payment: 14

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 248672

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150129

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: 20150129

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20160229

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20160120

Year of fee payment: 16

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 NON-PAYMENT OF DUE FEES

Effective date: 20150130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20160127

Year of fee payment: 16

Ref country code: DE

Payment date: 20160120

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20160120

Year of fee payment: 16

Ref country code: FR

Payment date: 20160121

Year of fee payment: 16

Ref country code: BE

Payment date: 20160120

Year of fee payment: 16

Ref country code: GB

Payment date: 20160120

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170131

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60100707

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20170201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170129

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170131

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: 20170801

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170201

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170129

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170130

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170129