WO2005044487A1 - Electromagnetic agitation method for continuous casting of metal products having an elongate section - Google Patents
Electromagnetic agitation method for continuous casting of metal products having an elongate section Download PDFInfo
- Publication number
- WO2005044487A1 WO2005044487A1 PCT/FR2004/002728 FR2004002728W WO2005044487A1 WO 2005044487 A1 WO2005044487 A1 WO 2005044487A1 FR 2004002728 W FR2004002728 W FR 2004002728W WO 2005044487 A1 WO2005044487 A1 WO 2005044487A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal
- mold
- product
- nozzle
- currents
- Prior art date
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
-
- 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
- B22D11/16—Controlling or regulating processes or operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/02—Use of electric or magnetic effects
-
- 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
- Electromagnetic stirring process for the continuous casting of metallic products of elongated section.
- the present invention relates to the continuous casting of metals, in particular steel. It relates more particularly to the electromagnetic stirring of products with an elongated straight section during casting, and more precisely still the establishment, within the part still in the liquid state of the metal being cast, of a particular distribution of the flows at l using applied magnetic fields.
- product with an elongated cross section means metallurgical products whose width is at least twice the thickness, in particular slabs, slabs, thin slabs, etc. Appeared in the field of the continuous casting of steel at the beginning of the seventies, the electromagnetic stirring quickly asserted itself there as an almost essential tool for the control of the flows in the well of liquid metal in the course of solidification.
- MHD Magneto-HydroDynamics
- these inductors Suitably placed on the metallurgical height of the casting machine, these inductors, supplied with electric current at adjustable frequency, then allow various brewing modes, adaptable to the needs of the metallurgist.
- the constant progress made in understanding the mechanisms of metal solidification during continuous casting show the importance that the circulation movements of liquid metal have precisely on quality in general (ie internal health, surface cleanliness or inclusionary , solidification structure, etc.) of the solidified product obtained.
- the movements imparted to molten metal during continuous casting can schematically be classified into two distinct categories, depending on whether one considers the ingot mold or, below, the stages of the secondary cooling of the casting machine.
- loops 42, 43 are established parallel to the large faces and are staggered according to the height of the product poured on either side of a common transverse motor action area of the magnetic field, the currents of each loop going up along of a small face and descending along the small opposite face.
- Such a configuration of movements is conventionally referred to as a "butterfly wing configuration”. It is possible, as shown in the attached figure 4 extracted from the document FR 82.10844, to multiply the transverse motor action zones 51, 52 ... of the magnetic fields according to the height of the casting machine. In this case, they are given opposite directions of rotation two by two between the nearest neighboring loops, in order for example to concern a volume stirred as large as possible for a given available stirring power.
- a topology of movements is thus produced, known as a "triple zero configuration" formed by three adjacent loops rotating in opposite directions two by two: a central loop 60 located between the two transverse motor zones 51 and 52 and two external loops 61 and 62, on either side of the central loop and rotating in the same direction.
- a central loop 60 located between the two transverse motor zones 51 and 52 and two external loops 61 and 62, on either side of the central loop and rotating in the same direction.
- inductors placed behind the support rollers of the secondary cooling zone of the casting machine, and between these rollers (FR 72.20547), or housed within even of these (FR 72.20546). It is also the same with regard to the means of implementing the invention which will be explained below.
- the other, 22, - is reflected upwards so as to bring in the vicinity of the free surface 23 of the metal in the mold the enthalpy necessary to avoid freezing phenomena of the metal cast at the meniscus, which very often are the because of accidental stops of the casting.
- the aim is thus to produce in a mold a circulation mode known as a "double loop", as opposed to the "single loop" mode.
- the latter shown in FIG. 7, results first of all in a phenomenon of the metal rising towards the meniscus as soon as it leaves the vents of the nozzle, very often resulting from an injection of anti-clogging argon in the nozzle from the flow distributor located above. This immediate ascent upwards is then extended by a surface current towards each small face and a descent along it.
- ingot mold flows which are either of the "double loop” type. , ' either of the "single loop” type, or of unstable flows due to "left-right” asymmetries. It is in particular because of these difficulties in controlling flows in the upper part of continuous casting machines that we have seen more recently appear electromagnetic stirring systems already acting in the mold on the lateral outlet jets of the nozzle. As shown in the diagrams in FIGS.
- horizontally movable magnetic fields are produced by polyphase linear inductors 30a, 30b and 30a ', 30b' arranged on the large walls of the mold 32 opposite the exit path of the metal jets on either side of the nozzle 31.
- polyphase linear inductors 30a, 30b and 30a ', 30b' arranged on the large walls of the mold 32 opposite the exit path of the metal jets on either side of the nozzle 31.
- it is then possible to slow the current of the jet concerned sliding of the fields against current, going from the small wall to the nozzle -fig 3b j
- accelerate it sliding in co-current in the direction going from the nozzle to the small wall-fig 3b 2 ).
- the invention aims, via an overall mixing movement studied of the molten metal according to the metallurgical height, to provide a good exchange of the metal still liquid in both directions between the secondary cooling zone and the mold. Therefore, both thermal and chemical homogeneity will be achieved between the top and bottom of the poured liquid metal well without disturbing the flow mode in the ingot mold and, if necessary, without depriving itself of the cumulative beneficial effects proper mixing in an ingot mold and mixing in secondary cooling respectively.
- a further aim of the invention is to contribute to the improvement of the metallurgical quality of steel grades for which good internal health is sought, such as grades for heavy plates or for large welded tubes, ferritic stainless steels, or electrical steels with silicon.
- Another additional aim is to be able to act on the flows in the secondary to use them at the level of the casting jets coming from the nozzle either as an accelerating agent, or on the contrary as a braking agent for the metal arriving in the ingot mold, or even as a means to counteract the inclinations of "left-right" asymmetry of the movements of the metal within the ingot mold.
- the invention relates to an electromagnetic stirring process in the secondary cooling zone of an installation for continuous casting of slabs, or other similar products with an elongated straight section, the ingot mold of which has a immersed pouring nozzle with lateral outlet openings directed towards the small faces, stirring process implemented using sliding magnetic fields generated by polyphase inductors placed near the cast metal, characterized in that one forces, in said secondary cooling zone, the establishment of a longitudinal flow of the liquid metal located in the middle region of the product poured according to two antagonistic collinear currents.
- these two longitudinal antagonistic collinear currents are created in the middle part of the product which converge towards one another so that the two upper lobes which extend in the mold up to the level of the jets coming from the Outlets of the pouring nozzle are superimposed on them against the current to brake them.
- the location of the longitudinal flow in the secondary is shifted laterally towards one or the other of the small walls of the cast product in order to counteract the tendencies to the "left-right" asymmetry of the movements of metal within the mold.
- the longitudinal metal flow is created in the middle region of the product poured according to two antagonistic collinear currents using collinear mobile magnetic fields sliding longitudinally in said median region, or by approaching the from each other, either by moving away.
- the longitudinal metal flow is created in the middle region of the cast product according to two antagonistic collinear currents using mobile collinear magnetic fields sliding transversely along the width of the cast product, ie by approaching the 'from each other from the edge towards the center of the cast product, or by moving away from each other from the center towards the edge of the cast product.
- the sliding magnetic fields are generated using polyphase linear inductors which are placed opposite the large faces of the cast product.
- the inductors are supplied with electric currents of different intensities, in order to regulate differently the action on the two antagonistic collinear metallic currents created by the sliding magnetic fields which they generate.
- colllinear sliding of the metal fields or flows it should be understood that the magnetic fields, respectively the currents of metal, slide not in parallel with each other but in the same line, like two collinear vectors with respect to two parallel vectors.
- the invention consists, in its main foundations, in creating in the secondary cooling zone a cross-stitch with two transverse branches and two longitudinal branches.
- transverse branches (or horizontal if we assume the vertical pouring axis) develop according to the width of the cast product and the two longitudinal (or vertical) branches develop in the middle region (most often axial) of the cast product . And it is the formation in the secondary of such a stirring cross which, due to the recirculation flows in the four-lobed figure which results therefrom within the liquid well, will create a global configuration of the movements also concerning the region of the ingot mold such that the aforementioned aims of the invention will be achieved.
- the invention will be well understood and other aspects will appear more clearly in the light of the description which follows given with reference to the accompanying drawing plates in which: - Figures 1 to 4 are representative of the prior art already considered before. More precisely: * FIG.
- FIG. 1 is a usual diagram showing summarily in median vertical section parallel to the large walls of the ingot mold the known map of the movements of circulation of the liquid metal arriving in- an ingot mold for continuous casting of slabs by an immersed nozzle provided with 'side outlet openings facing the small side walls;
- Figures 2a, 2b ! and 2b 2 are diagrams, according to two views (in perspective on the left and in section on the right), of known modes of electromagnetic mixing in the mold for continuous casting of slabs with submerged nozzle with lateral outlets (cf.
- FIG. 1 is a simplified diagram showing in perspective "a slab during continuous casting in the secondary cooling zone of the casting machine.
- This zone is provided with a pair of linear inductors arranged opposite one on the other on each side of the product along the width thereof and generating a horizontally sliding magnetic field so as to achieve an electromagnetic mixing mode in the form of "butterfly wings" known is for example from the document FR 72.20546 cited above
- Figure 4 is a diagram similar to the previous one in Fig. 3, but showing a mode of electromagnetic mixing in "triple loop", as achieved for example by implementing the teaching of the document FR 82.10844 pre- - the other figures, numbered from 5 to 9 are specific to the invention.
- FIG. 5 is a general diagram, seen in axial vertical section parallel to the large walls of an ingot mold for continuous casting of slabs provided with an immersed nozzle with lateral outlet openings opening opposite the small side walls, showing the principle of global four-lobe clover mixing in the secondary cooling zone according to one of the two embodiments of the invention in which the longitudinal opposing currents move away from each other, and the mapping of the movements circulation of the resulting liquid metal within this zone just below the mold;
- Figure 6 is a diagram similar to that of Figure 5, but in the case where the flow mode in the mold is no longer in "double loop", but in "single loop”;
- Figure 7a is a diagram which, on the basis of a reproduction of Figure 5, shows a means of carrying out stirring in four-lobe clover using linear inductors with a magnetic field sliding horizontally;
- Figure 7b is a diagram similar to Figure 7a, but illustrating another embodiment of this implementation of the invention using this time linear inductors with magnetic field sliding vertically;
- Figure 8 is also a
- FIGS. 1 to 4 served as a support for the presentation of the prior art already made at the start of this thesis. We will not come back to this in the following.
- FIGS. 5 to 9 representative of the mode of mixing in the secondary proper to the invention in these two variants (divergent or convergent in the center), the sliding magnetic fields, just like the linear inductors which produce them, are represented by thick vertical or horizontal arrows.
- the convection movements produced are themselves represented by their main trajectories in the form of lines carrying arrowheads indicating the direction of movement movement on the carrier path.
- the solid lines represent active convection zones, therefore of circulation subjected to the action of sliding magnetic fields.
- a submerged nozzle 4 centered on the casting axis A feeds the ingot mold in molten metal from a distributor not shown located above.
- This nozzle is provided with gills of lateral outlets 5 and 5 ′ each turned opposite one and the other of the small walls 3 and 3 ′ respectively.
- the form of the cast product is determined by the internal dimensions of the mold defining the casting space into which the molten metal arrives in the form of jets 7, 7 ′ emerging from the openings of the nozzle 4 conventionally in a more or less average direction. horizontal, or slightly tilted downwards.
- the cast product thus progresses from the top, from the level of the meniscus 8, downwards, in the direction of extraction of the casting machine, vertically or along a curved path in a plane orthogonal to that of the figure, with an extraction speed (casting speed) usually of the order of one meter per minute.
- the metallurgical height (or depth of the solidification well), is conventionally defined as the difference in dimensions on the vertical between the level of the free surface of the metal cast in an ingot mold (or meniscus) and that of the bottom of the solidification well. at the bottom of the secondary cooling zone, where the finishing solidification fronts which meet on each of the large faces of the cast product meet as the solidification progresses.
- This cross 9 is a cross with four branches, collinear two by two: two longitudinal branches (here vertical) 10a, 10b, forming a pair aligned on the casting axis A, and two transverse branches (here horizontal) l ia, 11b forming a pair developing along the width of the cast product .
- the liquid metal flows there in opposite directions two by two. Furthermore, the circulation of metal in one pair is opposite to that of the other pair.
- these branches Due to the necessarily “finished” dimensional nature of the cast product, these branches, as can be seen, are connected in a way with each other by recirculation loops to form an overall flow developing in the plane of the large faces of the product cast in the shape of a four-leaf clover, the leaves constituting lobes L1, L2, L3, L4, the upper two of which, L1 and L4, extend to the mold at the outlet jets 7 and 7 '.
- the pair of vertical branches is in "divergent" type convection. The metal streams move away from each other from the center P.
- the convection of the metal is then of the "convergent" type: the metallic currents converge towards each other in the direction of the center of confluence P by flowing from the small lateral faces of the product towards the longitudinal axis A.
- the metal currents which form these branches are created by sliding magnetic fields, themselves generated by linear inductors arranged in the immediate vicinity of the product cast opposite these large faces (preferably the two faces) .
- the implementation of the invention maximizes the exchanges of metallic material between the bottom and the top of the liquid well.
- the looping circulation of the metal in any lobe takes place in a direction of rotation opposite to that which is established in the two closest neighboring lobes.
- the strength of the casting jets 7 and 7 ′ then being systematically reinforced by the central flow 10a rising co-current, the recirculation loops L5 and L6 in the mold towards the meniscus 8 will be reinforced in their turn. Consequently, the "double loop" mode L5, L1, L4 and L6 present within the mold is thus moreover stabilized.
- any element of liquid metal (which one will isolate by thought at an arbitrary place of the metallurgical height) will have a high probability of finding itself, by random borrowing of ascending or successive descending currents, at the at least once in the mold before going back down if it is initially in the secondary cooling zone and vice versa if it is initially chosen in the mold, it being understood that overall it will necessarily undergo an average downward movement in the direction of extraction with an average speed equal to the casting speed.
- this implementation of the invention maximizes the exchange of molten metallic material between the hot zones of the ingot mold and those colder of the secondary and this by reinforcing in the ingot mold the known means capable of stabilizing the "double" mode there. loop".
- FIG. 7a illustrates a first implementation of the invention according to which two identical linear inductors 12 and 13 are placed horizontally at the same level in height on the machine of casting (collinear inductors) on either side of the casting axis and mounted in opposition so as to create transverse sliding collinear magnetic fields depending on the width of the cast product, small faces 18, 18 'towards the center.
- FIG. 7b illustrates a second implementation, equivalent to the previous one as regards the effects obtained.
- the collinear linear inductors 14 and 15 mounted in opposition are arranged vertically, on the casting axis.
- Figure 8 illustrates a preferred embodiment of the invention. It consists in transforming the upper edge of the upper recirculation lobes L1 and L4 reinforcing the pouring jets 7 and 7 ′ into zones of active convection.
- FIG. 9 similar to FIG. 5, is essentially distinguished from it by the fact that the directions of circulation of the metal in each of the four " branches of the cross 9 are reversed. This FIG.
- FIG. 9 thus illustrates the second main variant for implementing the invention which consists in creating longitudinal antagonistic collinear currents 20a, 20b in the middle part of the cast product 6 which this time converge towards each other in the direction of point P so as to provide circulation of the liquid metal which extends into the mold 1 by currents rising along the small faces 18, 18 'up to the level of the metal jets 7, 7' coming from the outlet gills 5, 5 'of the nozzle with which they oppose against the current to slow them down.
- the invention consists, in short, in judiciously using the electromagnetic stirring means currently available to carry out in the secondary a cutting in the long direction of the product into two strands juxtaposed and, in each strand, to install a butterfly wing type brewing configuration. In doing so, an overall flow system is created in the secondary with four lobes, the heart of which is the cross cross 9 with its center P.
- this division into two strands will be made half-width of the cast product, that is to say along the longitudinal axis thereof, since this axis generally merges with the casting axis. That said, it will suffice to unbalance the stirring forces between the two transverse branches 11 a, 11 b, for example via a differentiated adjustment of the intensities of the electric currents supplying the inductors 12, 13, to laterally move the middle position from the center P towards a small face 5 or towards the other 5 ′ and thus obtain a more selective effect on one side of the nozzle on the mold movements than on the other.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Continuous Casting (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Alcoholic Beverages (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602004006010T DE602004006010T2 (en) | 2003-10-27 | 2004-10-22 | ELECTROMAGNETIC STIRRING METHOD FOR THE CONTINUOUS CASTING OF METAL PRODUCTS WITH A LONG-SECTION CROSS-SECTION |
EP04805290A EP1677928B1 (en) | 2003-10-27 | 2004-10-22 | Electromagnetic agitation method for continuous casting of metal products having an elongate section |
CA002543368A CA2543368A1 (en) | 2003-10-27 | 2004-10-22 | Electromagnetic agitation method for continuous casting of metal products having an elongate section |
KR1020067008191A KR101089261B1 (en) | 2003-10-27 | 2004-10-22 | Electromagnetic agitation method for continuous casting of metal products having an elongate section |
AU2004286877A AU2004286877B2 (en) | 2003-10-27 | 2004-10-22 | Electromagnetic agitation method for continuous casting of metal products having an elongate section |
JP2006536133A JP4758903B2 (en) | 2003-10-27 | 2004-10-22 | Electromagnetic stirring method for continuous casting of metal products having an elongated cross section |
US10/577,461 US20070074845A1 (en) | 2003-10-27 | 2004-10-22 | Electromagnetic agitation method for continuous casting of metal products having an elongate section |
BRPI0415903-9A BRPI0415903B1 (en) | 2003-10-27 | 2004-10-22 | electromagnetic mixing process in the secondary cooling zone of a continuous casting plant and elongated straight section metal products. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0312555A FR2861324B1 (en) | 2003-10-27 | 2003-10-27 | ELECTROMAGNETIC BREWING PROCESS FOR CONTINUOUS CASTING OF EXTENDED SECTION METAL PRODUCTS |
FR0312555 | 2003-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005044487A1 true WO2005044487A1 (en) | 2005-05-19 |
Family
ID=34400826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2004/002728 WO2005044487A1 (en) | 2003-10-27 | 2004-10-22 | Electromagnetic agitation method for continuous casting of metal products having an elongate section |
Country Status (16)
Country | Link |
---|---|
US (1) | US20070074845A1 (en) |
EP (1) | EP1677928B1 (en) |
JP (1) | JP4758903B2 (en) |
KR (1) | KR101089261B1 (en) |
CN (1) | CN100371108C (en) |
AT (1) | ATE359886T1 (en) |
AU (1) | AU2004286877B2 (en) |
BR (1) | BRPI0415903B1 (en) |
CA (1) | CA2543368A1 (en) |
DE (1) | DE602004006010T2 (en) |
ES (1) | ES2285558T3 (en) |
FR (1) | FR2861324B1 (en) |
RU (1) | RU2357833C2 (en) |
TW (1) | TWI324952B (en) |
WO (1) | WO2005044487A1 (en) |
ZA (1) | ZA200604177B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009542439A (en) * | 2006-07-07 | 2009-12-03 | ロテレツク | Method and apparatus for continuous casting of flat metal products with electromagnetic stirring |
WO2011117479A1 (en) | 2010-03-23 | 2011-09-29 | Rotelec | Stirring roller for a continuous slab-casting machine |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2457064C1 (en) | 2011-03-03 | 2012-07-27 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" (Сфу) | Method of continuous and semicontinuous casing of aluminium alloys and device to this end |
RU2464123C1 (en) * | 2011-11-25 | 2012-10-20 | Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") | Method of adjusting conditions of electromagnetic mixing of ingot liquid phase in slab continuous casting machine and device to this end |
RU2600776C2 (en) * | 2012-03-27 | 2016-10-27 | Ротелек | Stirring-roll for a continuous cast machine of metallic products of large cross section |
JP6087155B2 (en) * | 2013-01-23 | 2017-03-01 | 株式会社神戸製鋼所 | Continuous casting method of slab made of titanium or titanium alloy |
CA2949837C (en) | 2014-05-21 | 2021-07-13 | Novelis Inc. | Mixing eductor nozzle and flow control device |
CN112687419B (en) * | 2020-12-18 | 2022-04-12 | 岭东核电有限公司 | Metal removing well for spent fuel and method for removing liquid metal on spent fuel |
CN112876043B (en) * | 2021-02-24 | 2022-08-02 | 成都贝施美生物科技有限公司 | Glass ceramic preparation mould capable of realizing rapid demoulding |
CN116121610B (en) * | 2022-12-30 | 2024-10-18 | 湖南稀土金属材料研究院有限责任公司 | Magnesium-zirconium intermediate alloy and preparation method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2358223A1 (en) * | 1976-07-13 | 1978-02-10 | Siderurgie Fse Inst Rech | PROCESS FOR ELECTROMAGNETIC BREWING OF MOLTEN METALS DURING CONTINUOUS CASTING OPERATIONS |
EP0909598A1 (en) * | 1996-05-13 | 1999-04-21 | Ebis Corporation | Method and apparatus for continuous casting |
JPH11320054A (en) * | 1998-05-20 | 1999-11-24 | Nippon Steel Corp | Continuous caster and continuous casting method |
JP2000317593A (en) * | 1999-05-12 | 2000-11-21 | Nippon Steel Corp | Method for continuously casting molten steel |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2358222A1 (en) * | 1976-07-13 | 1978-02-10 | Siderurgie Fse Inst Rech | NEW PROCESS AND DEVICE FOR THE ELECTROMAGNETIC BREWING OF CONTINUOUS FLOWING METAL PRODUCTS |
JPS5813263B2 (en) | 1977-01-11 | 1983-03-12 | 住友金属工業株式会社 | Continuous casting method |
US4158380A (en) * | 1978-02-27 | 1979-06-19 | Sumitomo Metal Industries Limited | Continuously casting machine |
FR2485411B1 (en) * | 1980-06-27 | 1985-11-08 | Siderurgie Fse Inst Rech | ELECTROMAGNETIC CONTINUOUS CASTING LINGOTIERE OF METAL PRODUCTS WITH EXTENDED RECTANGULAR SECTION |
JPS6037251A (en) * | 1983-08-11 | 1985-02-26 | Kawasaki Steel Corp | Electromagnetic stirring method of molten steel for continuous casting mold |
JPS6333160A (en) | 1986-07-28 | 1988-02-12 | Nippon Kokan Kk <Nkk> | Continuous casting method |
CA2059030C (en) * | 1992-01-08 | 1998-11-17 | Jun Kubota | Method for continuous casting of slab |
DE19542211B4 (en) * | 1995-11-13 | 2005-09-01 | Sms Demag Ag | Electromagnetic stirring device for a slab casting mold |
JPH11320051A (en) * | 1998-05-20 | 1999-11-24 | Nippon Steel Corp | Continuous casting apparatus and continuous casting method |
CN1142045C (en) * | 1999-09-22 | 2004-03-17 | 大连理工大学 | Continuous metal casting method with applied composite electromagnetic field |
KR100618362B1 (en) * | 2000-03-09 | 2006-08-30 | 제이에프이 스틸 가부시키가이샤 | Production method for continuous casting cast billet |
SE519840C2 (en) * | 2000-06-27 | 2003-04-15 | Abb Ab | Method and apparatus for continuous casting of metals |
JP4254576B2 (en) * | 2004-02-27 | 2009-04-15 | Jfeスチール株式会社 | Steel continuous casting apparatus and continuous casting method |
-
2003
- 2003-10-27 FR FR0312555A patent/FR2861324B1/en not_active Expired - Fee Related
-
2004
- 2004-10-22 ES ES04805290T patent/ES2285558T3/en not_active Expired - Lifetime
- 2004-10-22 CA CA002543368A patent/CA2543368A1/en not_active Abandoned
- 2004-10-22 AU AU2004286877A patent/AU2004286877B2/en not_active Ceased
- 2004-10-22 AT AT04805290T patent/ATE359886T1/en active
- 2004-10-22 KR KR1020067008191A patent/KR101089261B1/en active IP Right Grant
- 2004-10-22 DE DE602004006010T patent/DE602004006010T2/en not_active Expired - Lifetime
- 2004-10-22 RU RU2006118350/02A patent/RU2357833C2/en active
- 2004-10-22 US US10/577,461 patent/US20070074845A1/en not_active Abandoned
- 2004-10-22 EP EP04805290A patent/EP1677928B1/en not_active Expired - Lifetime
- 2004-10-22 WO PCT/FR2004/002728 patent/WO2005044487A1/en active IP Right Grant
- 2004-10-22 JP JP2006536133A patent/JP4758903B2/en not_active Expired - Lifetime
- 2004-10-22 BR BRPI0415903-9A patent/BRPI0415903B1/en active IP Right Grant
- 2004-10-22 CN CNB2004800290865A patent/CN100371108C/en not_active Expired - Lifetime
- 2004-10-22 ZA ZA200604177A patent/ZA200604177B/en unknown
- 2004-10-27 TW TW093132533A patent/TWI324952B/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2358223A1 (en) * | 1976-07-13 | 1978-02-10 | Siderurgie Fse Inst Rech | PROCESS FOR ELECTROMAGNETIC BREWING OF MOLTEN METALS DURING CONTINUOUS CASTING OPERATIONS |
EP0909598A1 (en) * | 1996-05-13 | 1999-04-21 | Ebis Corporation | Method and apparatus for continuous casting |
JPH11320054A (en) * | 1998-05-20 | 1999-11-24 | Nippon Steel Corp | Continuous caster and continuous casting method |
JP2000317593A (en) * | 1999-05-12 | 2000-11-21 | Nippon Steel Corp | Method for continuously casting molten steel |
Non-Patent Citations (5)
Title |
---|
FUJISAKI K ET AL: "PHASE CHARACTERISTICS OF ELECTROMAGNETIC STIRRING", IEEE TRANSACTIONS ON MAGNETICS, IEEE INC. NEW YORK, US, vol. 33, no. 5, PART 2, 1 September 1997 (1997-09-01), pages 4245 - 4247, XP000703324, ISSN: 0018-9464 * |
KUNSTREICH S: "ELECTROMAGNETIC STIRRING FOR CONTINUOUS CASTING - PART I BRASSAGE ELECTROMAGNETIQUE POUR COULEE CONTINUE. PARTIE I", REVUE DE METALLURGIE, REVUE DE METALLURGIE. PARIS, FR, vol. 100, no. 4, April 2003 (2003-04-01), pages 395 - 408, XP001186883, ISSN: 0035-1563 * |
KUNSTREICH S: "ELECTROMAGNETIC STIRRING FOR CONTINUOUS CASTING (PART 2) BRASSAGE ELECTROMAGNETIQUE POUR COULEE CONTINUE (PARTIE 2)", REVUE DE METALLURGIE, REVUE DE METALLURGIE. PARIS, FR, vol. 100, no. 11, November 2003 (2003-11-01), pages 1043 - 1061, XP001046813, ISSN: 0035-1563 * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 14 5 March 2001 (2001-03-05) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009542439A (en) * | 2006-07-07 | 2009-12-03 | ロテレツク | Method and apparatus for continuous casting of flat metal products with electromagnetic stirring |
WO2011117479A1 (en) | 2010-03-23 | 2011-09-29 | Rotelec | Stirring roller for a continuous slab-casting machine |
Also Published As
Publication number | Publication date |
---|---|
BRPI0415903A (en) | 2007-01-16 |
ZA200604177B (en) | 2007-12-27 |
EP1677928B1 (en) | 2007-04-18 |
RU2006118350A (en) | 2007-12-10 |
TWI324952B (en) | 2010-05-21 |
TW200533437A (en) | 2005-10-16 |
FR2861324A1 (en) | 2005-04-29 |
CA2543368A1 (en) | 2005-05-19 |
AU2004286877B2 (en) | 2009-09-10 |
DE602004006010D1 (en) | 2007-05-31 |
US20070074845A1 (en) | 2007-04-05 |
CN1863625A (en) | 2006-11-15 |
EP1677928A1 (en) | 2006-07-12 |
CN100371108C (en) | 2008-02-27 |
JP4758903B2 (en) | 2011-08-31 |
ATE359886T1 (en) | 2007-05-15 |
KR20060120054A (en) | 2006-11-24 |
ES2285558T3 (en) | 2007-11-16 |
RU2357833C2 (en) | 2009-06-10 |
KR101089261B1 (en) | 2011-12-02 |
JP2007509752A (en) | 2007-04-19 |
FR2861324B1 (en) | 2007-01-19 |
BRPI0415903B1 (en) | 2012-08-07 |
DE602004006010T2 (en) | 2007-12-13 |
AU2004286877A1 (en) | 2005-05-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1954427B1 (en) | Adjusting the mode of electromagnetic stirring over the height of a continuous casting mould | |
CA1091787A (en) | Process and apparatus for the electromagnetic stirring of continuous meltflow metallic compositions | |
EP1677928B1 (en) | Electromagnetic agitation method for continuous casting of metal products having an elongate section | |
EP1039979B1 (en) | Electromagnetic braking device for a smelting metal in a continuous casting installation | |
EP1551580B1 (en) | Method and device for controlling flows in a continuous slab casting ingot mould | |
CA2702639A1 (en) | Method and associated electromagnetic apparatus for rotating molten metal in a slab continuous-casting ingot mould | |
FR2801523A1 (en) | Method and installation for the vertical continuous casting of metal products using electromagnetic fields to control the shape of the liquid metal meniscus | |
EP0005676A2 (en) | Electromagnetic agitating process applied to continuous casting | |
WO2008003838A1 (en) | Process for the continuous casting of flat metal products with electromagnetic stirring and implementation installation | |
FR2574328A1 (en) | ROTARY FEEDING DEVICE IN CAST IRON OF A VERTICAL CONTINUOUS CASTING SYSTEM OF A SPEROID GRAPHITE CAST IRON PIPE | |
CA2398724C (en) | Equipment for supplying molten metal to a continuous casting ingot mould and method for using same | |
EP1712314A1 (en) | Continuous casting process of metallic profiles | |
EP0097561B1 (en) | Process and device for the electromagnetic stirring of continuously cast slabs, especially of steel | |
EP1351786B1 (en) | Nozzle equipped with a bar for introducing molten metal into an ingot mould for continuous metal casting | |
EP0010041A1 (en) | Process for the continuous casting of metals with stirring in the secundary cooling zone | |
EP0038275A1 (en) | Means for the continuous casting of hollow blanks | |
CH629127A5 (en) | Continuous-casting method | |
FR2521886A3 (en) | Casting pipe for continuous casting mould - has side outlets co-operating with mould walls to produce melt rotation | |
WO2017198500A1 (en) | Vertical semi-continuous casting mould comprising a cooling device | |
FR2460171A1 (en) | Electroslag remelting of large solid ingots - where axial cooling device lowered into molten metal pool produces fine crystals in middle of ingot | |
BE562298A (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480029086.5 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004805290 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006536133 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2543368 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007074845 Country of ref document: US Ref document number: 10577461 Country of ref document: US Ref document number: 1020067008191 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 582/MUMNP/2006 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004286877 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006/04177 Country of ref document: ZA Ref document number: 200604177 Country of ref document: ZA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006118350 Country of ref document: RU |
|
ENP | Entry into the national phase |
Ref document number: 2004286877 Country of ref document: AU Date of ref document: 20041022 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2004286877 Country of ref document: AU |
|
WWP | Wipo information: published in national office |
Ref document number: 2004805290 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067008191 Country of ref document: KR |
|
ENP | Entry into the national phase |
Ref document number: PI0415903 Country of ref document: BR |
|
WWP | Wipo information: published in national office |
Ref document number: 10577461 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 2004805290 Country of ref document: EP |