EP3256276A1 - GIEßANLAGE - Google Patents
GIEßANLAGEInfo
- Publication number
- EP3256276A1 EP3256276A1 EP16700043.9A EP16700043A EP3256276A1 EP 3256276 A1 EP3256276 A1 EP 3256276A1 EP 16700043 A EP16700043 A EP 16700043A EP 3256276 A1 EP3256276 A1 EP 3256276A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- roller segment
- input
- output
- segment
- 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
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
- B22D11/12—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
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1282—Vertical casting and curving the cast stock to the horizontal
-
- 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
- B22D11/14—Plants for continuous casting
- B22D11/141—Plants for continuous casting for vertical casting
-
- 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
- B22D11/14—Plants for continuous casting
- B22D11/142—Plants for continuous casting for curved casting
Definitions
- the invention relates to a casting plant for the casting of liquid metal, in particular steel to a casting strand.
- Casting plants are basically known in the prior art, for example from Austrian Pat. No. 2,445,222 and German
- Laid-Open Specification 2,117,110 Both documents disclose a casting installation with a mold for producing a casting strand from supplied molten metal and a strand guide for transferring the casting strand into the horizontal.
- the strand guide has at least one of the mold in the casting direction downstream input roller segment and the input roller segment downstream in the casting direction output roller segment.
- the invention has the object, the strand guide of a known casting plant to the effect
- the structurally identical design of the two segments in the strand guide saves the development and production of different roller segments.
- the development and production costs of the strand guide are therefore lower than in a strand guide, which has only each different roll segments.
- For the operator of the casting plant is also the maintenance of each Roller segments cheaper, because only one type of role segment held and maintained.
- roller segment means in each case a segment consisting of a top frame and a bottom frame, on each of which a plurality of strand guide rollers are rotatably mounted. while the subframe, with its strand guide rollers mounted thereon, faces the underside of the cast strand, the top frame and the subframe are
- roller segment expressly does not mean single rollers or individual roller pairs, but exclusively the said segment construction
- a driving device is arranged in the casting direction behind the strand guide for pulling the casting strand out of the strand guide.
- the mold can be used as a funnel mold or as a parallel mold with parallel
- the mold may be straight or curved.
- the strand guide has only two roller segments, namely the said input roller segment and the identical output roller segment, wherein the two roller segments are then arranged directly behind one another in the casting direction and wherein the
- Input roller segment corresponds.
- the longitudinal section of the input roller segment and the output roller segment can each extend over an angular range of 45 °.
- the two successively arranged roller segments then cover a quarter circle completely.
- the input roller segment and the output roller segment can also be designed such that their longitudinal sections only extend over an angular range of less than 45 °.
- Input roller segment and the identical output roller segment also have an intermediate roller segment, wherein the input radius of the
- Input roller segment and the output radius of the intermediate roller segment should then correspond to the input radius of the Harmonensegmentes to a smooth as possible, d. H. kink-free transition of the casting strand in the
- the Swiss-Tensegment is then preferably formed with a circular arc or Doppelklothoidenförmigen longitudinal section.
- the input roll segment and the output roll segment are in their
- Longitudinal section each formed in a circular arc or in the form of a clothoid or each with a straight and a subsequent arcuate section.
- Input roller segment is arranged in the strand guide.
- the said mirror offset arrangement of the output roller segment in the strand guide is required.
- the output roller segment in the casting direction is followed by a separate straightening device for transferring the
- Casting strand in the horizontal This is typically required, in particular, if the starting roll segment-just like the identical entry roll segment-is formed with a circular-arc-shaped or clothoid-shaped longitudinal cut.
- the straightening device and the driver device can be designed as a structural unit, which reduces costs.
- the input and the output roller segment are each formed with a circular longitudinal section, they may, for example, have a radius of 2,100 mm and 10 strand guide roller pairs each.
- insects or the output roller segment can be designed as axle or as a pin rollers.
- the strand guide may be followed by a furnace device in the casting direction for homogenizing the temperature of the casting strand.
- the driver device, the straightening device or the structural unit can be arranged either between the strand guide and the furnace device or within the furnace device.
- the maximum height of the casting plant from the entrance of the mold to the horizontal outlet of the strand guide is 4 m.
- the horizontal extent of the casting plant from the mold to the end of the strand guide is advantageously 3 m.
- the low height and the short length of the casting advantageously allow a relatively high exit temperature of the casting from the casting machine, this exit temperature is already close to the required inlet temperature of the casting in a casting plant typically downstream rolling mill. For this reason, the energy costs for reheating the casting strand before rolling
- Figure 1 shows a first embodiment of the casting machine according to the invention with a straight mold and clothoid-shaped strand guide;
- Figure 2 shows a fifth embodiment of the casting machine according to the invention with a straight mold and a straight and an arcuate portion in the longitudinal section of the strand guide;
- Figure 3 shows a second embodiment of the casting machine according to the invention with a curved mold and in longitudinal section clothoid-shaped strand guide;
- Figure 4 shows the casting plant according to the invention with only two segments in the strand guide in a plan view;
- a third embodiment of the casting installation according to the invention with a bent mold and a circular strand guide and a scissors arranged between the strand guide and a furnace device arranged downstream in the casting direction,
- FIG. 6 shows a fourth embodiment of the casting machine according to the invention according to the third embodiment, wherein, however, the scissors is not arranged before, but in the casting behind the oven device; the temperature profile of the G fauxstrangs when passing through the strand guide according to the invention; and
- FIG. 8 shows a size comparison of the micro-ultrathin strip production USP plant according to the invention with other known continuous casting plants.
- FIG. 1 shows a first exemplary embodiment of the casting installation 100 according to the invention.
- the casting installation comprises a currently constructed and vertically oriented mold 1 10 and a strand guide 120 downstream in the casting direction of the mold.
- a cast strand 200 cast in the mold is moved into the horizontal with the aid of the strand guide 120 transferred or diverted.
- the strand guide in the first embodiment comprises only two segments, namely an input roller segment 122, which is arranged directly behind the mold.
- the input roller segment 122 is a Starting roller segment 124 downstream in casting.
- Input roller segment and the output roller segment are designed identical with, for example, each 12 Strangschreibungsrollencruen.
- the two segments are each formed in their longitudinal section klothoidenformig. None of the roller pairs of the two segments is rotationally driven and therefore the roller pairs of the segments are not suitable for conveying the strand out of the mold or out of the strand guide. This task is done by one of the
- the height H of the caster is a maximum of 4 m; Its horizontal extent L is from the mold to the beginning of the horizontal guidance of the casting strand a maximum of 3 m.
- the mold 1 10 may be formed as a funnel mold with a cone-shaped enlarged Eing mano réelle for the melt or as a parallel mold with two completely parallel broad side walls. In the one shown in FIG.
- both the input roller segment 122 as well as the output roller segment 124 in their longitudinal section each have a
- the last rolls in the casting direction R of the output roll segment 124 are also used in the first embodiment as counter-pressure rolls for the straightening unit 160.
- the straightening unit 160 and the drive unit 130 may consist of a single roll
- Figure 2 shows a fifth embodiment of the invention
- the input roller segment 122 and the output roller segment 124 are not strict in their longitudinal section are formed clothoid-shaped, but each has a straight section and a subsequent curved section, here, for example, clothoid-shaped curved section.
- the input segment 122 on the input side of the mold some additional trailing pairs of rollers - exemplified 3 - which are aligned as a straight portion of the input roller segment straight and connect the output of the mold 1 10 with the clothoid arcuate portion of the input roller segment 122.
- Input roller segment mirrored arranged in the strand guide
- Outgoing roll segment 124 comprises on the output side here by way of example three
- FIG. 3 shows a second exemplary embodiment of the invention
- Roller pairs is the arc length of the two roller segments 122, 124 chosen so that their transition is at a height of 45 ° of the four-circle; this corresponds to the point section A-A in Figure 3. But because the arc length of the two
- the transition to the horizontal must therefore be made in this second embodiment of an additionally provided straightening device 160.
- the straightening device 160 is advantageously provided with a Driver device 130 realized in a structural unit.
- the structural unit then consists of at least 2 at least partially driven roller pairs.
- a scissors 140 and a furnace device 150 connect to the driver device 130
- FIG. 4 shows a plan view of the casting installation 100 according to the invention, for example according to the first or second embodiment.
- the mold 1 can be seen on the left-hand edge of the picture.
- the mold is followed by the first input roller segment 122 and the output roller segment 124 in the casting direction.
- To recognize are also the connections 128 for the electrical power supply and the cooling water of the roller segments. Due to the different
- Roller segments 122, 124 in the example shown in Figure 4 and thus also in the first and second embodiments, mirrored in the
- Strand guide 120 are arranged. Especially in the training of the
- Input roller segment 122 and the output roller segment 124 each with a clothoid-shaped longitudinal section, it is necessary for a smooth, that is kink-free transition between the roller segments, that the input radius of the output roller segment 124 the output radius of the
- Input roller segment 122 corresponds. This is achieved by the mirror-offset arrangement of the roller segments according to FIG.
- FIG. 5 shows a third exemplary embodiment of the casting installation 100 according to the invention with a curved funnel mold 1 10 and a strand guide 120 adjoining it.
- Starting roller segment 124 are each formed with a circular longitudinal section. Therefore, the input radius of the output roller segment 124 is automatically equal to the output radius of the input roller segment 122 and It therefore does not require a mirror-offset use of the roller segment 124 in the strand guide 120.
- the curvature of the mold 1 10 also corresponds to the radius of the input roller segment, so that even in the transition between the mold 1 10 and the input roller segment 122 no kink in the leadership of the cast strand 200th occurs. The last roles of the
- Starting roller segment 124 act again in this third embodiment as an abutment to the sepratraten straightening unit 160.
- the first rollers of the input roller segment do not act as bending rollers, because the cast strand already has its own tendency to continue with the mold radius when exited from the curved hopper mold 1 10. It therefore requires no bending forces to the cast strand on another
- FIG. 6 shows a fourth exemplary embodiment of the invention
- Caster 100 It corresponds in its construction substantially to the third embodiment according to Figure 5, but with the difference that the scissors 140 is arranged in the casting direction not before, but behind the oven device 150.
- This offers the advantage that the cold strand, with the aid of which the cast strand is first conveyed out of the mold and through the strand guide at the beginning of each melting process, in an area between the strand guide and the kiln inlet from the guide line for the cast strand 200
- FIG. 6 shows how, after passing through the strand guide 120, the cold strand can be led upwards outside the casting line. Unlike the third embodiment according to FIG 5 is the
- Scissors 140 now no longer in the way the shown Abtrangsport the dummy strand. Due to the repositioning of the scissors, the oven device can be brought closer to the output of the strand guide 120 in this fourth embodiment, whereby advantageously the average temperature of the cast strand in the area between the end of the secondary cooling, ie the end of the output roll segment 124 and the kiln inlet only by approx 20 ° C drops.
- FIG. 7 shows a typical temperature profile of the cast strand 200
- the upper temperature line shows the core temperature
- the second or middle temperature line the average temperature
- the lower temperature line the temperature respectively in the middle of the upper side of the cast strand.
- the graph shows the Temperaturveraluf the cast strand in ° C above the casting direction R starting at the mold level in the mold 1 10.
- the input roller segment 122 and this the output roller segment 124 follows.
- the abscissa is, as I said, the casting direction, d. H. the strand guide length is plotted in meters. This size should not be confused with the horizontal extent of the casting plant, which is typically much shorter.
- Falling below the core temperature of the casting strand 200 below the line of solidus temperature at about 3.9 m from the casting level represents the position of the sump tip, d. H. the location of the solidification. In this position, which also depends on the casting speed of 5.80 m / min, which is chosen here by way of example, the sump tip is still located in front of the last roll of the strand guide 120, d. H. still within the output roll segment 124.
- the output of the output roller segment 124 and the kiln inlet at a distance of approx. 7.5 m from the casting level is only approx. 60 ° C.
- As a run-in temperature of the casting strand of 1 .210 ° C in the furnace means for the at the
- Furnace 150 subsequent rolling mill is high enough, is only at low casting speeds require a short furnace device 150 or inductive heating.
- FIG. 8 shows a merely exemplary size comparison of FIG
- micro-USP system with known from the prior art continuous casting, on the one hand with a known standard continuous-slap production CSP system and a micro-CSP system.
- the dimensions given by way of example in tabular form should be self-explanatory.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015202608.6A DE102015202608A1 (de) | 2015-02-13 | 2015-02-13 | Gießanlage |
| PCT/EP2016/050067 WO2016128149A1 (de) | 2015-02-13 | 2016-01-05 | GIEßANLAGE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3256276A1 true EP3256276A1 (de) | 2017-12-20 |
| EP3256276B1 EP3256276B1 (de) | 2019-04-24 |
Family
ID=55071035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16700043.9A Active EP3256276B1 (de) | 2015-02-13 | 2016-01-05 | Giessanlage |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3256276B1 (de) |
| DE (1) | DE102015202608A1 (de) |
| WO (1) | WO2016128149A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018207137A1 (de) | 2018-05-08 | 2019-11-14 | Sms Group Gmbh | Gieß-Walz-Anlage, und Verfahren zu deren Betrieb |
| CN113649534B (zh) * | 2021-07-09 | 2022-09-09 | 中国冶金科工股份有限公司 | 一种板坯连铸扇形段空间定位测量方法 |
| DE102022202362A1 (de) * | 2022-03-09 | 2023-09-14 | Sms Group Gmbh | Bogensegment einer Strangführungseinrichtung |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT244522B (de) | 1964-02-03 | 1966-01-10 | Mannesmann Ag | Führung eines Bogenstranges in einer Stahlstranggießanlagen |
| SU349238A1 (de) | 1970-06-18 | 1974-05-05 | ||
| DE2511913A1 (de) * | 1975-03-19 | 1976-09-30 | Sack Gmbh Maschf | Stranggiessanlage fuer brammen |
| IN155878B (de) * | 1980-04-02 | 1985-03-23 | Nippon Steel Corp | |
| DE3839954A1 (de) * | 1988-11-26 | 1990-05-31 | Schloemann Siemag Ag | Anlage zur herstellung von warmgewalztem stahlband |
| AT398396B (de) * | 1993-02-16 | 1994-11-25 | Voest Alpine Ind Anlagen | Verfahren zum herstellen eines bandes, vorstreifens oder einer bramme |
| DE102008027496B4 (de) * | 2007-06-13 | 2023-05-25 | Sms Group Gmbh | Verfahren und Vorrichtung zum Stranggießen eines Metallstranges |
| DE102008003222A1 (de) * | 2007-09-13 | 2009-03-19 | Sms Demag Ag | Kompakte flexible CSP-Anlage für Endlos-, Semi-Endlos- und Batchbetrieb |
| DE102008004915A1 (de) * | 2008-01-18 | 2009-07-23 | Sms Demag Ag | Treibrichtsystem für Stranggießanlagen |
| AT506846B1 (de) * | 2008-05-23 | 2011-08-15 | Siemens Vai Metals Tech Gmbh | Strangführungssegment |
| EP2441538A1 (de) * | 2010-10-12 | 2012-04-18 | Siemens VAI Metals Technologies GmbH | Stranggießvorrichtung mit dynamischer Strangdickenreduzierung |
| DE102011088127A1 (de) * | 2011-06-07 | 2012-12-13 | Sms Siemag Ag | Strangführungssegment einer Strangführung einer Stranggießanlage und Verfahren zum Betreiben eines Strangführungssegments |
| DE102011077454A1 (de) * | 2011-06-14 | 2012-12-20 | Sms Siemag Ag | Stranggießanlage |
-
2015
- 2015-02-13 DE DE102015202608.6A patent/DE102015202608A1/de not_active Withdrawn
-
2016
- 2016-01-05 EP EP16700043.9A patent/EP3256276B1/de active Active
- 2016-01-05 WO PCT/EP2016/050067 patent/WO2016128149A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015202608A1 (de) | 2016-08-18 |
| WO2016128149A1 (de) | 2016-08-18 |
| EP3256276B1 (de) | 2019-04-24 |
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