EP1536900A1 - Procede et dispositif pour debuter un processus de coulee - Google Patents

Procede et dispositif pour debuter un processus de coulee

Info

Publication number
EP1536900A1
EP1536900A1 EP03798105A EP03798105A EP1536900A1 EP 1536900 A1 EP1536900 A1 EP 1536900A1 EP 03798105 A EP03798105 A EP 03798105A EP 03798105 A EP03798105 A EP 03798105A EP 1536900 A1 EP1536900 A1 EP 1536900A1
Authority
EP
European Patent Office
Prior art keywords
casting
strip
speed
casting speed
rolls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03798105A
Other languages
German (de)
English (en)
Other versions
EP1536900B1 (fr
EP1536900B2 (fr
Inventor
Gerald Hohenbichler
Gerald Eckerstorfer
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.)
SIEMENS VAI METALS Technologies GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29274633&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1536900(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Priority to SI200330195T priority Critical patent/SI1536900T1/sl
Priority to AT03798105T priority patent/ATE312676T1/de
Publication of EP1536900A1 publication Critical patent/EP1536900A1/fr
Publication of EP1536900B1 publication Critical patent/EP1536900B1/fr
Application granted granted Critical
Publication of EP1536900B2 publication Critical patent/EP1536900B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • 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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/161—Controlling or regulating processes or operations for automatic starting the casting process

Definitions

  • the invention relates to a method for starting a casting process in a two-roll casting device without using a start-up strand and a device for carrying out this method.
  • essentially chilled molds with a continuous mold cavity are used, in which the molten metal introduced on the inlet side solidifies, at least in the contact area with the mold cavity walls.
  • a substantially solidified metal strand is pulled out of the mold.
  • an initial filling of the mold cavity with molten metal is to be carried out, with a completely rigid starting piece having to be achieved in particular with a predominantly vertical alignment of the mold cavity, so that the molten metal does not flow uncontrollably through the mold and exit from it.
  • the casting thickness of the metal strand to be produced, the solidification conditions and the amount of heat that can be dissipated through the mold cavity walls during the short residence time are of particular importance.
  • a start-up line is usually introduced into the mold before the start of casting, which largely but not necessarily completely closes the exit cross section of the mold cavity and only after a firm connection of the introduced melt has been formed with the start-up strand head and a pronounced strand shell of sufficient thickness along the mold cavity walls with a pair of drive rollers from the mold.
  • This start-up procedure requires at least one new start-up head to be coupled to the start-up line each time the casting system is restarted.
  • Such a start-up strand as is used in strip steel casting molds formed by broad side walls and narrow side walls, is known, for example, from US Pat. No. 4,719,960.
  • a start-up strand for the special application in a two-roll casting installation is described in EP-A 208642.
  • This start-up line contains a start-up head with two flanges formed by thin sheet metal strips, which abut the lateral surfaces of the casting rolls and thus form a space for receiving the incoming molten metal.
  • the starting strand and the cast strip are conveyed out of the casting gap formed by the casting rolls.
  • a start-up strand is not absolutely necessary, since the open casting gap is bridged within a very short time due to the rapid solidification of the molten metal on the mold walls. Starting procedures in which no starting line is required are also known several times.
  • a starting method is known from JP-A 61-266 159, in which the two co-operating casting rolls are brought into a starting position before the start of casting, in which there is no casting gap and the casting rolls stand still. Immediately after the melt feed begins and a first strand shell is formed on the two lateral surfaces of the casting rolls, they are moved apart onto the operating casting gap (strip thickness) and the casting speed is brought up to the operating casting speed along a ramp-up curve.
  • a starting process with stationary casting rolls is, however, very unreliable because the actual casting level in the melt chamber cannot be measured with the necessary accuracy up to the narrowest cross section between the casting rolls. Neither an increase in force between the two casting rolls nor the degree of filling of the mold can therefore be regulated reasonably.
  • a different degree of solidification of the melt along the bandwidth and especially in the vicinity of the side plate can cause substantial wedge formation due to solidified metal above the narrowest cross section and subsequently lead to side plate damage. Furthermore, with such a starting method with upright casting rolls, there is an increased risk of section shell adhesives on the lateral surface of the casting rolls.
  • a casting process for a two-roll casting device in which the casting gap between the two casting rolls is set to a value which is reduced compared to the operating casting gap before the melt is supplied.
  • the melt is supplied with rotating casting rolls, the Casting speed is set so that the thickness of the strip produced is greater than the previously set casting gap.
  • the tendency to drip through molten metal is reduced by a reduced casting gap.
  • the disadvantages described above with regard to JP-A 61-266 159 increasingly occur in the case of small casting gaps, in particular the tendency to damage side plates.
  • EP-A 867 244 describes a control with which, in the starting phase of the casting process, the successive time periods of the casting rolls are first regulated as a function of a bath height measurement in the melt pool between the casting rolls and then the molten metal supply as a function of a roll speed measurement.
  • the object of the present invention is therefore to avoid the disadvantages of the prior art described at the outset and to propose a method for starting a casting process in a two-roll casting device and a device for carrying out the method, the passage of molten metal through the casting gap being kept low can and at the same time the tendency to wedge formation and thickening at the beginning of the cast strip is avoided as far as possible.
  • a separation of a first piece of the cast strip which does not meet the quality requirements of a continuous production, from the strip subsequently produced under largely stationary operating conditions, is to be achieved without the need for mechanical separation devices.
  • the casting speed is always determined by the casting roll circumferential speed, since the strand shells formed and adhering to the casting roll shells are transported at this speed through the narrowest cross section between the casting rolls and are connected to one another.
  • the starting casting speed is a low casting speed, at which, due to the longer dwell time of the strand shells that form in the melt chamber, an increased strand shell growth occurs and the casting gap which is open at the bottom can therefore be bridged particularly quickly.
  • the band formation casting speed is a casting speed which is dependent in particular on the current liquid metal casting level and also on the solidification conditions and the casting roll separation force required by the steel analysis, at which band formation and the removal of the formed strip takes place downwards and at which the band forming conditions remain largely unchanged can be.
  • the continuous filling of the melt space with molten metal takes place to the level of the operating casting level, the band forming casting speed increasing continuously with increasing casting level.
  • a reduced starting casting speed means that a low strip throughput is achieved until the target operating casting level is completely reached, and thus the proportion of rejects is kept low .
  • the operational casting thickness which is not reduced in the start-up phase, leads to fewer disturbances, which, as a result of solidification on the narrow side walls, lead to widening of the casting gap when passing through the casting cross section and possibly uncontrolled tearing of the cast strand.
  • the starting casting speed is chosen to be less than half the operating casting speed, the casting rolls usually rotating.
  • the start phase can also be initiated with upright casting rolls, so that the starting casting speed is still 0 m / min at the start of the supply of molten metal and the casting rolls are then accelerated quickly.
  • Particularly favorable conditions for the rapid bridging of the casting gap due to solidified metal melt in the starting phase result when the starting casting speed is less than 12 m / min.
  • a start casting speed in this range enables a good timing between the melt feed until the operating casting level is reached and the starting casting speed is increased to a band forming casting speed which corresponds approximately to the operating casting speed. This is achieved by a moderate, steady increase in the casting roll peripheral speed to a banding casting speed that matches a measurable target casting level, in order to ensure reliable banding (strand shell formation on the casting roll surfaces in the melt pool).
  • the band formation casting speed is set or regulated in accordance with a measurable target casting level.
  • the band formation casting speed is regulated as a function of the separating force occurring between the casting rolls.
  • the separating force between the two casting rolls is a measure of the strand shell thickness and the current state of solidification in the narrowest cross section between the casting rolls. It is higher the further the solidification process has progressed in this area.
  • the metal bath level which predominantly rises in the start-up phase and which has a significant influence on the formation of strand shells, is also taken into account here.
  • the measured values of a bath level measurement and a separation force measurement in combination can also be used to regulate the banding casting speed.
  • the strip separation casting speed is to be understood as the casting speed at which the first part of the cast metal strip, which was produced under transient casting conditions in the starting phase of the casting process and is therefore to be regarded as scrap material, is separated from the continuously following metal strip produced under largely stationary casting conditions. According to a possible embodiment, this separation takes place exclusively under the influence of the dead weight of the starting piece of the cast metal strip, which leaves the narrowest cross section between the casting rolls and hangs down by tearing it off in the casting gap.
  • the solidification conditions and thus the mechanical properties of the cast strip in the casting cross section are changed so that the strip breaks off in this cross section without additional mechanical measures.
  • the cast metal strip can be separated at the strip separation casting speed under the influence of a strip tension which is increased compared to the force of gravity and is applied by a driver arrangement which is arranged on the outlet side below the casting gap of the two-roll casting device.
  • a strip tension which is increased compared to the force of gravity and is applied by a driver arrangement which is arranged on the outlet side below the casting gap of the two-roll casting device.
  • the belt separation casting speed is higher than the operating casting speed, preferably it is 5% to 40% higher than the operating casting speed.
  • This strip separation casting speed is set briefly as soon as almost stationary casting conditions are reached. It is preferred that a constant strip quality is already ensured.
  • the strip separating casting speed is expediently set in the starting phase when the molten metal in the melt chamber has essentially reached the desired operating casting level.
  • the casting speed is increased to approximately the operating casting speed in the melt chamber before the desired operating casting level is reached.
  • the proposed method enables the stationary casting operation to be achieved within 5 to 60 seconds after the start of the supply of molten metal into the melt chamber.
  • a starting casting thickness that is larger than the operating casting thickness is set, and this starting casting thickness is reduced to the operating casting thickness at the earliest after forming a cast metal strip with a constant cross-sectional format.
  • This method is preferably used for casting thicknesses below 2.5 mm, since the difficulties described at the outset with side plate solidifications and wedge formation and subsequent uncontrolled band breaks can occur especially in this thickness range and the band following the band separation thus has a better inherent rigidity for guiding through the system.
  • Mathematical models for the starting process are generated for the casting speed, for the position of a strip guiding device and for the transport speed of the cast metal strip in a strip transport device and are transmitted to the drive units of these devices.
  • the separation conditions for the separation of the first piece of the cast metal strip in the casting cross-section are improved if, based on current input data, such as steel quality, operating casting thickness, temperature conditions, quality-related solidification conditions, etc., an additional manipulated variable for the spacing positioning of the two casting rolls to one another, in particular an increased starting casting thickness, is generated.
  • the quality of the metal strip produced can generally and continuously be optimized during the casting process and adapted to changing operating conditions if the mathematical model comprises a metallurgical model for forming a certain structure in the cast metal strip and / or for influencing the geometry of the cast metal strip.
  • a two-roll casting device for carrying out the described method for starting a casting process without a starting strand consists of two casting rolls which are coupled with rotary drives and rotate in opposite directions and side plates which bear against the casting rolls and which together form a melt space for receiving the metal melt, as well as at least one displaceable strip guide device and at least one strip transport device. It is characterized by
  • a speed measuring device for determining the instantaneous casting speed is assigned to the casting rolls
  • a level measuring device for determining the instantaneous level of the metal melt is assigned to the melt chamber
  • the speed measuring device and the level measuring device by Signal lines are connected to an arithmetic unit and - the arithmetic unit is connected by signal lines to the rotary drive of the casting rolls, to a position adjusting device of the strip guiding device and to the drive of a strip transport device.
  • the two casting rolls can also be coupled to a common rotary drive with the interposition of a transfer case.
  • a two-roll casting device equipped in this way enables current production data from the steel production process to be taken over and processed together with measurement data on the casting device in a computing model to optimize the starting process.
  • An appropriate course of the method according to the invention is also possible if, instead of continuously measuring the level of the casting level in the melt chamber with a level measuring device, alternatively a separating force measuring device for determining the instantaneous separating force between the two casting rolls, which is essentially caused by the banding, or a position measuring device for determining the current gap width between the casting rolls or a measuring device is used to determine the current strip thickness.
  • Each of these measurements provides reference data that, at least indirectly, establish a mathematically describable connection with the strand shell formation in the melt pool and thus with the metal strand formation in the narrowest cross-section between the casting rolls and which can therefore be used in a mathematical model to calculate manipulated variables in order to minimize or minimize the starting process to optimize the shape and manageability of the tear-off edge.
  • a further improvement of the starting method can be achieved by combining at least two of these measurement methods, the measurements being carried out simultaneously and processed in a correspondingly expanded mathematical model.
  • a further optimization of the method results if at least one of the two casting rolls is coupled to a casting roll adjusting device and the computing unit is additionally connected to a casting roll adjusting device by means of a signal line for setting a starting casting thickness.
  • a specific higher starting casting thickness is determined and set on the casting system.
  • the present method and the associated two-roll casting installation are suitable for the casting of metal melts, preferably Fe-containing metal alloys, in particular for steels.
  • FIG. 1 is a schematic representation of a two-roll casting device for performing the method according to the invention
  • Fig. 3 shows the course of the casting speed, the casting gap, the
  • a two-roll caster with the facilities necessary for carrying out the method according to the invention is shown schematically in FIG. It consists of two casting rolls 1, 2 which are arranged at a distance from one another in a horizontal plane and are equipped with internal cooling (not shown). These are rotatably supported in shaft bearings 3, 4 and coupled to rotary drives 5, 6 which rotate the casting rolls 1, 2 in opposite directions Casting roll axes 1 ' , 2 ' with an adjustable peripheral speed that corresponds to the casting speed. To determine the current casting speed, at least one of the casting rolls 1, 2 or the associated rotary drives 5, 6 or even the cast metal strip itself is assigned a speed measuring device 34.
  • One of the two casting rolls 2 is slidably supported in the horizontal plane transversely to the casting roll axis 2 ' and is coupled to a casting roll adjusting device 7, whereby the distance between the two casting rolls 1, 2 to one another is adjustable adjustable.
  • a casting roll adjusting device 7 At the end of the casting rolls 1, 2, side plates 8 are pressed, which, together with a section of the lateral surfaces 9, 10 of the rotating casting rolls, form a melt space 11 for receiving metal melt 12.
  • the molten metal 12 is introduced from an intermediate vessel 13 through a dip tube 14 into the melt chamber 11 continuously and in a controlled manner, so that during the stationary casting operation, the melt is supplied through the dip tube outlets in submerged form, ie always below a pouring level 15 which is kept at a constant level.
  • the level of the casting level is continuously monitored by means of a level measuring device 16 arranged above the melt chamber 11.
  • the melt space 11 is delimited by the casting gap 18, which is defined by the distance between the two casting rolls 1, 2 and determines the casting thickness D of the cast metal strip.
  • the solidified strand shells 19, 20 formed on the lateral surfaces 9, 10 of the casting rolls in the melt chamber 11 are connected in the casting gap 18 to form a largely solidified metal strip 21, which is conveyed downward from the casting gap 18 by the rotational movement of the casting rolls 1, 2, by a downstream one pivotable belt guide device 22 and belt guide rollers 23 are deflected in a largely horizontal transport direction and a belt transport device 24 formed by a pair of drive rollers is conveyed out of the two-roll casting device.
  • the arcuate tape guide 22 is connected to a drive unit 25, which enables the tape guide 22 to be pivoted from a retracted position A to an operating position B and back.
  • the strip guide device is in the retracted position A and, after a first piece of the cast metal strip has been cut off, is pivoted into the operating position B and can remain there during the entire stationary production process.
  • a scrap pick-up carriage 26 is arranged vertically below the casting gap 18, in which at most metal melt which initially drips through and the first section of the cast strip can be collected and, if necessary, transported away.
  • the scrap pick-up truck can also be designed without wheels. It can be positioned within a chamber wall that surrounds the path of the cast metal strip from the casting rolls to the first driver. This too must the first section of the cast strip does not necessarily fall directly into the scrap pick-up carriage, but can also be fed indirectly to it.
  • the cast metal strip After the cast metal strip emerges from the strip transport device 24 equipped with a drive unit 27, it is refined in further treatment devices 28 (not shown in any more detail) and finally wound into coils 29 and / or divided into sheets.
  • the further treatment devices 28 can be formed, for example, by rolling stands, trimming devices, surface treatment devices, thermal treatment devices of various types, such as heating devices, holding furnaces, temperature compensation furnaces, and cooling sections.
  • the two-roll casting device is equipped with an arithmetic unit 36, which makes it possible to carry out the starting process in an automated manner as a function of predefined input variables and current measured variables determined on the device.
  • arithmetic unit 36 which makes it possible to carry out the starting process in an automated manner as a function of predefined input variables and current measured variables determined on the device.
  • optimal manipulated variables such as the start casting speed v gSt , the position of the strip guiding device , the drive speed of the strip transport device and, if applicable, the starting casting thickness D st and other manipulated variables are generated in the computing unit and the starting process is continuously regulated and supervised.
  • Actuating variables that are generated from the computing unit 36 to carry out the starting process are based on currently collected measurement data from the casting installation, which are directly or indirectly related to the strand shell growth.
  • the instantaneous level of the casting level 15 is predestined for this, ie the level of the casting level in the melt chamber 11, which can be determined continuously using a level measuring device 16.
  • the separating force F Tr between the two casting rolls 1, 2 represents a reaction force on the strand shells passed through and likewise provides a reference value for the degree of solidification in the narrowest cross section between the casting rolls. It is to be determined with a separating force measuring device 30, which is assigned to the casting roll bearings 3, 4 or is installed in the casting roll adjusting device 7.
  • a further possibility for determining a reference quantity is provided by the instantaneous gap width G between the casting rolls, which is closely related to the separating force F Tr , since a higher separating force causes the casting rolls 1, 2 to deflect from one another radially or to deform them.
  • This can be done directly through a position measuring device 31 can be measured on the casting rolls or indirectly via a strip thickness measuring device 32.
  • the simultaneous measurement and processing of the measurement data from several of the measuring systems described minimizes the time required to start the system and in particular increases the quality of the strip tear-off edge of the subsequent metal strip with regard to its geometry and its manageability through the system, as well as the quality of the product produced from the start of production.
  • FIGS. 2a and 2b The solidification conditions on the lateral surfaces 9, 10 of the two casting rolls and in the casting gap 18 at a steady operating casting speed and at a strip cutting casting speed are compared in FIGS. 2a and 2b.
  • a steady operating casting speed FIG. 2a
  • the two casting rolls 1, 2 are set on a casting gap 18 which corresponds in particular to the stationary casting level and the operating casting thickness D of the desired cast metal strip.
  • an increasingly thicker strand shell 19, 20 is formed in the direction of rotation of the casting rolls, thus oriented towards the casting gap 18.
  • the two strand shells 19, 20 are joined together in the casting cross section 18 and a solidified metal strip is formed under stationary casting conditions.
  • the V-shaped lines 37 here illustrate the transition from 100% melt to a mixing area with an increasing solid content and the V-shaped line 38 illustrates the transition to 100% solid content, thus the solidified strand part.
  • 2b shows the changed solidification conditions at a strip separation casting speed which is increased compared to the operating casting speed. This means that the peripheral speed of the casting rolls is increased. The cooling conditions were not changed here. As a result, the available strand shell formation time in the melt space and thus the strand shell growth is reduced, so that the solidification point 39 shifts in the casting direction and in the casting cross section there is either still an increased proportion of liquid body fraction and / or the average strip temperature is at least higher than at the operating casting speed. In both cases, the tensile strength of the hanging metal strip piece at the strip separation casting speed is reduced to such an extent that the metal strip breaks off in the casting cross section under the influence of its weight.
  • the casting speed is increased to such a high strip separation casting speed and then immediately lowered again, that temporarily no separation force is measured.
  • molten metal flows into the space below the narrowest cross-section between the casting rolls due to the lack of connection between the two strand shells and under the effect of the ferrostatic pressure. This leads to local bulging of the metal strip and considerable rewarming of the strip layers near the surface, and tearing under the influence of the strip's own weight hanging downwards.
  • the casting gap position G is measured on the hydraulic piston of an AGC system.
  • the mold level h Gsp can only be measured after a certain degree of filling has been reached, since the melt chamber is narrowed in a funnel shape towards the pouring cross-section due to the arrangement of the casting rollers and level measurement in this very narrow area is not technically feasible.
  • the cast metal strip tears under the influence of its own weight in the narrowest cross section between the casting rolls.
  • the Casting roll separation force F Tr briefly returns to zero.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

La présente invention concerne un procédé pour améliorer les conditions au début d'un processus de coulée dans un système de coulée à deux rouleaux, sans utiliser de fausse barre. Ce procédé consiste à régler une épaisseur de coulée de fonctionnement, à mettre en rotation les rouleaux de coulée à une vitesse périphérique qui correspond à une vitesse de coulée de début réduite par rapport à la vitesse de coulée de fonctionnement fixe, à amener une masse fondue métallique dans une chambre à masse fondue formée par les rouleaux de coulée en rotation et par les plaques latérales qui leur sont adjacentes, à former une bande métallique coulée présentant un format de section transversale prédéfini, sensiblement constant, tout en augmentant la vitesse de coulée jusqu'à une vitesse de coulée de formation de bande, à augmenter ensuite la vitesse de coulée jusqu'à une vitesse de coulée de séparation de bande, nettement supérieure à la vitesse de coulée permettant les conditions de solidification courantes, à séparer la bande métallique coulée, à régler la vitesse de coulée de fonctionnement fixe, à diriger la bande métallique coulée vers un système de transport de bande, puis à initier un fonctionnement de coulée fixe. La présente invention concerne également un système de coulée à deux rouleaux permettant de mettre en oeuvre ledit procédé.
EP03798105A 2002-09-12 2003-08-18 Procede pour debuter un procedure de coulee Expired - Lifetime EP1536900B2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200330195T SI1536900T1 (sl) 2002-09-12 2003-08-18 Postopek in naprava za zacetek postopka litja
AT03798105T ATE312676T1 (de) 2002-09-12 2003-08-18 Verfahren und vorrichtung zum starten eines giessvorganges

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0136702A AT411822B (de) 2002-09-12 2002-09-12 Verfahren und vorrichtung zum starten eines giessvorganges
AT13672002 2002-09-12
PCT/EP2003/009110 WO2004028725A1 (fr) 2002-09-12 2003-08-18 Procede et dispositif pour debuter un processus de coulee

Publications (3)

Publication Number Publication Date
EP1536900A1 true EP1536900A1 (fr) 2005-06-08
EP1536900B1 EP1536900B1 (fr) 2005-12-14
EP1536900B2 EP1536900B2 (fr) 2012-08-15

Family

ID=29274633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03798105A Expired - Lifetime EP1536900B2 (fr) 2002-09-12 2003-08-18 Procede pour debuter un procedure de coulee

Country Status (9)

Country Link
US (1) US7156153B2 (fr)
EP (1) EP1536900B2 (fr)
KR (1) KR101143384B1 (fr)
CN (1) CN100577326C (fr)
AT (1) AT411822B (fr)
AU (1) AU2003258624B2 (fr)
DE (1) DE50301955D1 (fr)
MX (1) MXPA05002697A (fr)
WO (1) WO2004028725A1 (fr)

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AT501044B8 (de) 2004-10-29 2007-02-15 Voest Alpine Ind Anlagen Verfahren zum herstellen eines gegossenen stahlbandes
EP2283949B1 (fr) * 2005-10-28 2015-12-23 Novelis, Inc. Homogénéisation et traitement thermique des métaux moulés
US7562540B2 (en) * 2006-06-16 2009-07-21 Green Material Corporation Fiberizing device for producing fibers from molten waste
JP5103916B2 (ja) * 2007-02-01 2012-12-19 株式会社Ｉｈｉ 双ロール鋳造機の操業方法及びサイド堰支持装置
EP2581150A1 (fr) 2011-10-12 2013-04-17 Siemens Aktiengesellschaft Dispositif de laminage par coulée avec refroidissement cryogène des laminoirs par coulée
JP6511968B2 (ja) * 2015-06-03 2019-05-15 日産自動車株式会社 双ロール式縦型鋳造装置及び双ロール式縦型鋳造方法
CN104942251B (zh) * 2015-07-01 2017-01-11 重庆大学 炼钢厂连铸机的开浇时间确定方法
EP3202502A1 (fr) * 2016-02-04 2017-08-09 Primetals Technologies Germany GmbH Reglage de position de bande
US10618107B2 (en) 2016-04-14 2020-04-14 GM Global Technology Operations LLC Variable thickness continuous casting for tailor rolling
CN108145112B (zh) * 2016-12-05 2020-01-21 上海梅山钢铁股份有限公司 基于液位自动控制的板坯连铸塞棒控流自动开浇工艺

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ATA13672002A (de) 2003-11-15
EP1536900B1 (fr) 2005-12-14
KR101143384B1 (ko) 2012-05-23
DE50301955D1 (de) 2006-01-19
EP1536900B2 (fr) 2012-08-15
CN1681613A (zh) 2005-10-12
CN100577326C (zh) 2010-01-06
AU2003258624A1 (en) 2004-04-19
US7156153B2 (en) 2007-01-02
AU2003258624B2 (en) 2008-11-20
US20050224210A1 (en) 2005-10-13
KR20050057316A (ko) 2005-06-16
MXPA05002697A (es) 2005-05-27
WO2004028725A1 (fr) 2004-04-08
AT411822B (de) 2004-06-25

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