EP4122622A1 - Dispositif de guidage de brin et procédé de coulée continue d'un produit métallique dans une installation de coulée continue doté d'un tel dispositif de guidage de brin - Google Patents

Dispositif de guidage de brin et procédé de coulée continue d'un produit métallique dans une installation de coulée continue doté d'un tel dispositif de guidage de brin Download PDF

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Publication number
EP4122622A1
EP4122622A1 EP22181798.4A EP22181798A EP4122622A1 EP 4122622 A1 EP4122622 A1 EP 4122622A1 EP 22181798 A EP22181798 A EP 22181798A EP 4122622 A1 EP4122622 A1 EP 4122622A1
Authority
EP
European Patent Office
Prior art keywords
segment
strand
strand guide
guide device
roller
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.)
Pending
Application number
EP22181798.4A
Other languages
German (de)
English (en)
Inventor
Thomas Heimann
Esra Erdem-Hornauer
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.)
SMS Group GmbH
Original Assignee
SMS Group 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
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP4122622A1 publication Critical patent/EP4122622A1/fr
Pending legal-status Critical Current

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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
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • 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
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • 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
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1285—Segment changing devices for supporting or guiding frames
    • 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
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
    • 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
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/208—Controlling or regulating processes or operations for removing cast stock for aligning the guide rolls
    • 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
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary cooling

Definitions

  • the invention relates to a strand guiding device according to the preamble of claim 1, and to a method for continuously casting a metallic product in a continuous casting plant with such a strand guiding device according to the preamble of claim 11.
  • continuous casting plants for thick or thin slabs, billets or round plants are defined not only by their mold but also by the number of segments and support rollers.
  • the entire system configuration with all segments, roller and nozzle positions and roller diameters is stored electronically for a calculation process.
  • the operation of the secondary cooling of a continuous casting plant is usually realized with spray or cooling water, with the amount of water on the Surfaces of the cast strand is applied, is set under specification of target temperature curves.
  • the progression of these target temperature curves can vary depending on the material of the material to be cast and, for example, depending on certain cooling zones of the supporting strand guide and/or the casting speed.
  • a corresponding target temperature curve is then selected and the secondary cooling for applying the spray or cooling water to the surfaces of the cast strand to be cooled is thus set.
  • the 16 shows a part of a conventional continuous casting installation 110 with an associated secondary cooling system 111, which is formed from nine individual strand guide segments 102.
  • the strand guide segment arranged at position #1 comprises a total of 13 pairs of support rollers arranged opposite one another.
  • the strand guide segments at positions #2 through #7 each include six pairs of support rolls, with the two strand guide segments at positions #8 and #9 each including seven pairs of support rolls.
  • this secondary cooling system 111 which at the same time forms the supporting strand guide for the continuous casting installation 110, comprises a total of 63 pairs of supporting rollers
  • the invention is based on the object of being able to adapt a configuration of the supporting strand guide and at least one segment thereof to different steel grades in a simple manner during the continuous casting of metal products.
  • a strand guide device is intended for use in a continuous casting installation in which a metal product in the form of a cast strand can be moved in a transport direction.
  • a strand guide device comprises a plurality of separate supporting strand guide segments, which are arranged next to or one behind the other, viewed in the direction of transport, and each have a plurality of support rollers, preferably in the form of pairs of support rollers arranged opposite one another, with at least one strand guide segment being designed to be exchangeable at a predetermined position of the strand guide device and thus being able to be exchanged for a change segment .
  • Such an exchangeable segment differs from the strand guide segment that was previously or originally inserted at the predetermined position of the strand guide device in at least one feature, with this feature being selected from a group of features made up of the number of rolls, roll spacing, roll diameter, and roll type , roller drive, roller spacing, type and number of nozzles for strand cooling, contact forces of the segmented cylinders, type and number of roller stirrers and/or quality of at least one frame element.
  • the changing segment differs in at least one feature from the strand guide segment previously used or inserted at this predetermined position, as just explained.
  • the present invention also provides a method of continuously casting a metallic product in a continuous caster having a strand guide assembly comprising a plurality of separate supporting strand guide segments.
  • the metallic product in the form of a cast strand is moved in a transport direction, with the strand guide segments of the strand guide device being arranged next to or behind one another, viewed in the transport direction, and each having a plurality of support rollers, preferably in the form of pairs of support rollers arranged opposite one another .
  • This method is characterized in that at least one strand guide segment is exchanged for a change segment at a predetermined position of the strand guide device during a batch change for the metallic product.
  • Such a changing segment differs in comparison to the strand guide segment, which was previously or originally used at the predetermined position of the strand guide device, in at least one feature, this feature being selected from a group of features formed from the number of rolls, roll spacing, roll diameter, roll type, roll drive, roll pitch, type and number of nozzles for strand cooling, contact forces of the segment cylinders, type and number of roller stirrers and/or quality of at least one frame element.
  • the present invention is based on the essential finding that the use of an interchangeable segment in the strand guide device makes it possible to adapt to other types or grades of steel and their different material properties in the production of metallic products by means of continuous casting.
  • an interchangeable segment by using at least one interchangeable segment, it is also possible to cast special grades with a high strand quality (e.g. ultra low carbon grades, peritects, tubular or silicon steels, ferritic stainless steels).
  • the use of such a changeable segment in the supporting strand guide of a continuous casting plant means that, thanks to the change in at least one feature of this changeable segment compared to a strand guide segment that was originally or previously used instead of the changeable segment at the predetermined position of the strand guide device, then an adaptation to another steel grade, for example in the form of the above-mentioned special grades, can be achieved in order to realize the manufacturability or castability of such a different steel grade with changed material properties. As a result, an improvement in the quality of the manufactured metallic products is achieved with certain steel grades.
  • the present invention is based on the fact that the length of the strand guide device with its respective supporting strand guide segments is not changed, but that this strand guide device is changed in relation to at least one of its associated Segments "rebuilt", namely the fact that at least one strand guide segment is replaced by a change segment.
  • This changing segment differs - as already explained above - in at least one feature from the strand guiding segment, which was originally used in the predetermined position of the strand guiding device and has now been replaced by the changing segment..
  • the positions the "neighboring segments”, ie those strand guide segments that have not been replaced by a change segment are not changed by the use of a change segment.
  • a changing segment has the same basic geometry as compared to the strand guiding segment which is originally present or used at the predetermined position of the strand guiding device. This ensures that at a predetermined position of the strand guide device, i.e. at a specific point of it, an existing strand guide segment can be selectively exchanged or replaced with a change segment.
  • Said basic geometry can be defined by a radius of the roller guide and--seen in the transport direction--by a respective segment length. In other words, the radius of the roller guide, the segment length and the jaw width of a change segment remain the same compared to the strand guide segment that is then to be exchanged for the change segment at the predetermined position of the strand guide device.
  • the aforementioned replacement of at least one existing strand guide segment of the strand guide device with a respective changeable segment can take place in a curved area of the strand guide device and/or in a straight or linear area of the strand guide device, for example in its vertical or horizontal area. In the latter case, it goes without saying that such an alternating segment then also runs straight or linear and has no radius of curvature.
  • two segments of the strand guide device can also be exchanged or replaced by an exchangeable segment, which has the same dimensions as these two exchanged segments, but has at least one frame element with greater rigidity, for example.
  • an exchangeable segment which has the same dimensions as these two exchanged segments, but has at least one frame element with greater rigidity, for example.
  • an exchangeable segment is equipped with a roller stirrer.
  • a roller stirrer By means of such a roller stirrer, it is possible to generate an alternating magnetic field in the area of the cast strand that is still liquid. This takes place against the background that during the solidification of the liquid melt in a continuous casting plant, round grains (globulites) or oval grains (dendrites) can form, depending on the respective solidification rate. If ferritic stainless steels have too low a proportion of globulites, an undesired so-called tension cracking forms on the surface of the cold strip. But even with steel that is not frost-free, a higher proportion of globulites leads to a stronger structure and reduced central segregation.
  • By providing the aforesaid roller stirrer in the interchangeable segment it is possible to increase the globular structure proportion of certain grades when such an interchangeable segment is used in the strand guide device of a continuous casting plant.
  • a target temperature curve determines the target values for the surface temperature to be achieved, which the strand achieves within the supporting strand guide, eg at the end of individual cooling zones which are part of this supporting strand guide.
  • the amount of spray water from the secondary cooling system is regulated in such a way that these target values are achieved.
  • Some high quality steel grades tend to bulge severely between the strand guide support rollers. This tendency can last-mentioned possible developments of the invention are countered by an increased cooling capacity, for example by a larger number of secondary nozzles for cooling the cast strand and/or by larger amounts of water, which are supplied to the secondary nozzles.
  • an increase in the size of the strand shells of the cast strand is achieved by increased cooling, which reduces the bulging effect between the support rollers and thus also reduces the risk of internal cracks forming on the solidification front of the cast strand.
  • the interchangeable segment can have at least two adjacent ones with regard to its basic geometry strand guide segments which are arranged adjacent to one another in the original strand guide device.
  • the present invention also provides a continuous casting plant for producing a metallic product in the form of a cast strand.
  • a continuous casting plant comprises a strand guiding device as explained above, in which the cast strand can be moved in a transport direction.
  • a changing segment of a strand guide device is used here, as explained above.
  • steel grades that are sensitive to internal cracks can be processed, with static bulging being reduced through the use of the changing segment for the metallic product, while it is being moved within the supporting strand guiding device, and thus an improvement in the quality of the metallic product being achieved.
  • support rollers can be used in the changing segment, the roller diameter of which is smaller and the number of which is greater than in comparison to the supporting rollers of the strand guiding segment, which was originally present or used at the predetermined position of the strand guiding device and through the changing segment has been replaced.
  • steel grades can be processed with a casting speed of at least 2 m/min, with the use of the exchangeable segment reducing dynamic bulging for the cast strand and thereby improving plant safety. It may be useful that in the Exchange segment used support rollers each have a different roller spacing relative to each other.
  • roller spacing of the support rollers used in a change segment can be different in comparison to the support rollers of the strand guide segment that was previously present at the predetermined position of the strand guide device and has now been replaced by the change segment.
  • a process model can receive information regarding the arrangement of the used strand guide segments of the strand guide device and the at least one change segment used and compile the system configuration in relation to a roller and nozzle plan from a segment and nozzle catalogue. On the basis of this, the temperature of the cast strand along the supporting segments of the strand guide device is then calculated by the process model, preferably in the manner of a control.
  • a process model can receive information regarding the arrangement of the used strand guide segments of the strand guide device and the at least one change segment used and compile the system configuration in relation to a roller and nozzle plan from a segment and nozzle catalogue. Based on this, a sump tip position for the cast strand along the supporting segments of the strand guide is then calculated by the process model.
  • the plant configuration ie the configuration of a continuous casting plant, for example with regard to its associated support rollers and secondary nozzles for cooling the cast strand
  • the plant configuration is automatically reassembled.
  • These are in a segment catalogue for all strand guide segments of the strand guide device, also including at least one change segment, the positions and types of support rollers and nozzles are described.
  • the roller and nozzle plans are then recompiled internally.
  • steel grades or secondary steel with a copper content of ⁇ 0.15% can be processed.
  • a grain refinement and thus an improvement in quality is achieved through the use of an exchangeable segment with increased spray water cooling for the cast strand.
  • ferritic high-grade steels or silicon steels with a silicon content of at least 0.5% can also be processed.
  • an exchangeable segment with at least one roller stirrer By using an exchangeable segment with at least one roller stirrer, an increased proportion of globular primary structure and thus an improvement in quality is achieved for the cast strand.
  • FIG. 1 shows a basically simplified side view of the strand guide device 100 and an associated continuous casting plant 110 according to a first embodiment of the present invention.
  • the continuous caster 110 after 1 comprises a mold 112 having a lower opening 113 and thereby a vertical outlet downwards. Liquid metal is poured into the mold 112 up to a casting level or bath level 114, e.g. As steel or a steel alloy.
  • the continuous casting plant 110 comprises the supporting strand guiding device 100, which is connected to the lower opening 113 of the mold.
  • the supporting strand guide device 100 of the mold 112 is arranged immediately downstream or downstream thereof.
  • a cast or metal strand 101 emerges downwards from the lower opening 113 of the mold 112 and is then moved or transported along the strand guide device 100 in a transport direction T.
  • the secondary cooling system 111 comprises individual cooling segments (not specified) along the strand guide device 100, which ensure that a cooling medium, in particular in the form of water, is applied to both sides of the metal strand 101, e.g targeted cooling.
  • These cooling segments are each fed with cooling liquid via lines (not shown) and are each equipped with spray or secondary nozzles (to be explained below). Accordingly, it is possible to apply cooling liquid to the surfaces of the metal strand 101 through the spray nozzles of the individual cooling segments, namely on its upper side and/or lower side.
  • the continuous casting plant 110 comprises a control or regulation unit 132 which is connected to the cooling segments of the supporting strand guide device 100 via a signal path 134 for signaling purposes, among other things.
  • This signal path 134 can be wired or wireless, e.g. by a radio link or the like.
  • the control or regulation unit 132 includes a process computer 133 on which suitable software is installed.
  • the control or regulation unit 132 is connected to a data memory 136 in which the required process data for the continuous casting plant 110 are stored. Furthermore, current process data from the continuous casting plant 110 can also be collected or stored in the data memory. To this extent, this data memory 136 forms a database. It is possible to input or read individual process data PD into the data memory 136 via an interface (not shown). This input option is in the 1 symbolized by an arrow with "PD".
  • the continuous casting plant 110 is equipped with at least one (unspecified) temperature sensor, or a plurality of such sensors, which is/are arranged adjacent to the supporting strand guide device 100 .
  • the temperature of the metal strand 101 can be determined in order, for example, to compare the previously calculated temperature of the metal strand 101 with the to adjust the measurement.
  • the temperature data from the sensor or sensors are first fed to a data acquisition unit 138 and sent from there to the open-loop or closed-loop control unit 132 via the signal path 134 .
  • Variables or parameters are stored in the data memory 136, on the basis of which setpoint temperatures can be set or specified for the individual cooling segments along the supporting strand guide device 100.
  • a specific setpoint temperature and a predetermined distance from the bath or meniscus 114 can belong to these variables. These variables depend on a specific material or a specific group of materials from which the metal strand 101 is produced, and in any case independently of a specific continuous casting plant.
  • control and regulation unit 132 can be used for the individual cooling segments along supporting strand guide device 100 in the area of secondary cooling 111 of a specific continuous casting plant, e.g. continuous casting plant 110 from 1 , Target temperatures can be set or specified.
  • the strand guiding device 100 comprises a plurality of supporting strand guiding segments, which in the embodiment of FIG 1 are each denoted by the numbers 1-9. These strand guide segments 1-9 are arranged next to or one behind the other as seen in the transport direction T and each have a plurality of support rollers 118 .
  • the strand guide segment at position #1 of the strand guide device 100 comprises a total of 13 pairs of support rollers 118, with the two strand guide segments at positions #8 and #9 each being equipped with seven pairs of support rollers 118. Furthermore, the strand guide segments are at positions #2 through #7, at least in one original plant configuration of the continuous casting plant 110, each equipped with six pairs of support rollers 118.
  • the 3 1 shows a strand guide segment which can be originally arranged at position #4 of the strand guide device 100 and - as explained - is equipped with six pairs of support rollers 118 . If, as explained, the strand guide device 110 is equipped with the above-mentioned strand guide segments 1-9 at its positions #1 to #9, the total number of support roller pairs for the strand guide device 110, taking these nine strand guide segments 1-9 into account, is 63, in the same way as in the representation of 16 .
  • a standard strand-guiding segment can be exchanged or replaced by an interchangeable segment W in the strand-guiding device 100 at a predetermined position thereof. Details on this are explained below: A comparison of 2 with 3 clarifies that a segment length L of a change segment W ( 2 ) with that of strand guiding segment #4 ( 3 ) matches. The same applies to a radius around which the changing segment W and the strand guide segment #4 are each curved. The match in terms of segment length L and radius of curvature, with which a basic geometry of the respective segments of the strand guide device is defined, makes it possible in the present case for strand guide segment #4 to be replaced by interchangeable segment W, as explained. For this example, it is understood that the predetermined position of the strand guide device 100 at which a previously existing strand guide segment is exchanged for the changing segment W corresponds to position #4.
  • the embodiment of 1 is now characterized in that the strand guide segment at position #4 can be exchanged for an interchangeable segment W, which differs from the previously used strand guide segment at position #4 in at least one feature.
  • this distinguishing feature is formed, inter alia, by a larger number of pairs of support rollers 118 - namely, the changing segment W is equipped here with a total of seven pairs of support rollers 118, as can be seen from the simplified view of FIG 2 is illustrated. Taking into account this larger number of support roller pairs 118 of the changing segment W, if this according to the representation of 1 is inserted into the strand guide device 110 at position # 4, there is then a total of 64 pairs of support rollers 118.
  • the changing segment W comprises an upper frame element 116 and a lower frame element 117.
  • Support rollers 118 are rotatably mounted on these frame elements 116, 117 in each case.
  • these supporting rollers 118 which are respectively attached to the upper frame member 116 and the lower frame member 117, are arranged opposite to each other, thereby forming respective pairs of supporting rollers.
  • this changer segment W can differ in at least one of these features from a standard strand guide segment of a strand guide device 100, for which the changer segment W is used at the predetermined position of the strand guide device 100.
  • figure 5 shows a basically simplified side view of the strand guide device 100 and an associated continuous casting plant 110 according to a second embodiment of the present invention.
  • a change segment W can be used at positions #2 and #4 in the strand guide device 100 in order to replace a standard strand guide segment there, as explained.
  • the two changing segments W are each equipped with a total of seven pairs of support rollers 118, in accordance with the representation of FIG 2 or 4 . If the other standard strand guide segments those of 1 correspond, arise for the example of the strand guide device 100 according to figure 5 then a total of 65 pairs of support rollers.
  • the predetermined position of the strand guide device 100 at which a previously existing strand guide segment is replaced by a replacement segment W, in the present case corresponds to positions #2 and #4.
  • FIG. 6 shows a basically simplified side view of the strand guide device 100 and an associated continuous casting plant 110 according to a third embodiment of the present invention.
  • a change segment W can be used at positions #2, #3 and #4 in the strand guide device 100 in order to replace a standard strand guide segment there, as explained. This is in the 6 each with "W" and symbolized by corresponding arrows.
  • the three changing segments W are each equipped with a total of seven pairs of support rollers 118, in accordance with the representation of FIG 2 or 4 . If the other standard strand guide segments of the strand guide device 100 those of 1 correspond, arise for the example of the strand guide device 100 according to 6 then a total of 66 pairs of support rollers.
  • the predetermined position of the strand guide device 100 at which a previously existing strand guide segment respectively is replaced by a change segment W, here corresponds to positions #2, #3 and #4.
  • a plurality of interchangeable segments W are used at predetermined positions of the strand guide device 100, it is also possible here for these interchangeable segments W to differ from one another by at least one feature.
  • one of the pairs of support rollers 118 is provided with an additional drive, referred to here simply as "122".
  • the roll diameter D of the support rollers 118, which are equipped with the additional drive 122 is selected to be larger in comparison to the adjacent support rollers without a drive.
  • FIG. 9 shows a schematically simplified arrangement of support rollers 118 of a strand guide segment of the strand guide device 100, either a standard strand guide segment or a change segment W.
  • these support rollers 118 in the change segment W are undivided along their longitudinal extent.
  • the hydrostatic pressure of the still liquid melt in the core of the cast strand exerts pressure on the strand guide segments of the strand guide device, which causes them to spring open and the supporting rollers involved to bend slightly outwards between the associated supporting roller bearings.
  • this can lead to internal defects or defects on the surface.
  • the associated support rollers 118 are each formed twice or divided several times along their longitudinal extent.
  • the respective support rollers 118 according to 10 formed in their total length of three parts, with several bearing points are then provided accordingly.
  • the aforementioned effect of a possible spring-back of the segment also depends, among other things, on the strand width. If a greater strand width is now to be cast, the spring-back can increase and the strand thickness produced in the middle of the strand may be outside a tolerance range.
  • an interchangeable segment W can be used in the strand guide device 100, which segment reduces this spring-back through a reinforced segment frame. In the 11 (In the middle) such a change segment W is shown, which compared to standard strand guide segments 102 in the 11 disposed and shown adjacent thereto has reinforced frame members 116 and 117 of greater rigidity.
  • the deflections of the support rollers 118 which occur as a result of the hydrostatic pressure of the cast strand 101, are each shown by dashed lines with the designation "C Traverse ". It can be seen here that the deflection of the support rollers 118 for a changing segment W is less than for the adjacent standard strand guide segments 102, namely thanks to its reinforced upper and lower frame elements 116, 117.
  • the embodiment of 12 shows an exchangeable segment W, in which a total of seven rows of secondary nozzles 126 for cooling the cast strand 101 are provided along the segment length L.
  • nozzles with, for example, a larger spray angle in the casting or transport direction T (depth angle) can also be installed for certain grades in a change segment.
  • depth angle a larger spray angle in the casting or transport direction T
  • reinforced hydraulic or adjusting cylinders 120 can also be helpful in connection with carrying out a so-called "soft reduction".
  • soft reduction depending on the position of the bottom tip of the cast strand 101, selected segments of the strand guide device 100 are turned on, ie closed. Special soft reduction segments are required for this. If, for example, high-quality grades are to be processed during operation of the continuous casting plant 100, in this case at least one standard strand guide segment 102, or also a plurality of selected standard strand guide segments 102, can be replaced by a respective interchangeable segment W according to the embodiment of 15 be used, which thanks to its reinforced adjusting cylinder 120 is suitable for dynamic adjustment or soft reduction.
  • a continuous casting plant 110 as shown in figure 1 , figure 5 or. 6 has been shown and explained above to also shed high-quality grades by using at least one interchangeable segment W in the strand guide device 100 at selected positions to replace a standard strand guide segment 102 .
  • these interchangeable segments W have the same basic geometry, i.e., for example, the same segment length L and possibly the same radius of curvature, as the "old" standard strand guide segments 102 that were replaced the total number of support rollers 118 within the continuous casting plant 100 and thus the design of such a plant can be changed or adapted to a specific steel grade.
  • an interchangeable segment W can be used in an arched, ie curved area of the strand guide device 100 at different predetermined positions, for example and as explained at positions #2, #3 and/or #4.
  • a changing segment W in a horizontal part of the strand guide device 100 that has no curvature. If such interchangeable segments W have a smaller roller pitch, regardless of their exact position for use in the strand guide device 100, it is hereby possible to both achieve and maintain high casting speeds in the continuous casting process.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP22181798.4A 2021-07-09 2022-06-29 Dispositif de guidage de brin et procédé de coulée continue d'un produit métallique dans une installation de coulée continue doté d'un tel dispositif de guidage de brin Pending EP4122622A1 (fr)

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Application Number Priority Date Filing Date Title
DE102021207301.8A DE102021207301A1 (de) 2021-07-09 2021-07-09 Strangführungseinrichtung und Verfahren zum Stranggießen eines metallischen Produkts in einer Stranggießanlage mit einer solchen Strangführungseinrichtung

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EP4122622A1 true EP4122622A1 (fr) 2023-01-25

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EP22181798.4A Pending EP4122622A1 (fr) 2021-07-09 2022-06-29 Dispositif de guidage de brin et procédé de coulée continue d'un produit métallique dans une installation de coulée continue doté d'un tel dispositif de guidage de brin

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DE (1) DE102021207301A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN117066467A (zh) * 2023-10-17 2023-11-17 唐山市方通冶金设备制造有限公司 连铸机弯曲段辊道半径校正装置及其校正方法

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WO2007121838A1 (fr) 2006-04-22 2007-11-01 Sms Demag Ag procÉdÉ et dispositif de dÉtermination des distances de rouleaux DE rouleaux d'appui et bâti de guidage de BARRE d'une installation de coulÉe continue
DE102008004915A1 (de) * 2008-01-18 2009-07-23 Sms Demag Ag Treibrichtsystem für Stranggießanlagen
DE102012201395A1 (de) * 2012-02-01 2013-08-01 Sms Siemag Ag Verfahren zum Stranggießen eines metallischen Stranges in einer Stranggießanlage und Stranggießanlage

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
DE102005058753A1 (de) * 2005-12-08 2007-06-14 Sms Demag Ag Einrichtung zum Wechseln eines Stützrollen-Segmentes der Strangführung einer Bogenstranggießmaschine für flüssige Metalle, insbesondere für flüssigen Stahl
WO2007121838A1 (fr) 2006-04-22 2007-11-01 Sms Demag Ag procÉdÉ et dispositif de dÉtermination des distances de rouleaux DE rouleaux d'appui et bâti de guidage de BARRE d'une installation de coulÉe continue
DE102008004915A1 (de) * 2008-01-18 2009-07-23 Sms Demag Ag Treibrichtsystem für Stranggießanlagen
DE102012201395A1 (de) * 2012-02-01 2013-08-01 Sms Siemag Ag Verfahren zum Stranggießen eines metallischen Stranges in einer Stranggießanlage und Stranggießanlage

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Publication number Priority date Publication date Assignee Title
CN117066467A (zh) * 2023-10-17 2023-11-17 唐山市方通冶金设备制造有限公司 连铸机弯曲段辊道半径校正装置及其校正方法
CN117066467B (zh) * 2023-10-17 2023-12-19 唐山市方通冶金设备制造有限公司 连铸机弯曲段辊道半径校正装置及其校正方法

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