EP3849729A1 - VERFAHREN ZUR STEUERUNG ODER REGELUNG DER TEMPERATUR EINES GIEßSTRANGS IN EINER STRANGGIEßANLAGE - Google Patents
VERFAHREN ZUR STEUERUNG ODER REGELUNG DER TEMPERATUR EINES GIEßSTRANGS IN EINER STRANGGIEßANLAGEInfo
- Publication number
- EP3849729A1 EP3849729A1 EP19758973.2A EP19758973A EP3849729A1 EP 3849729 A1 EP3849729 A1 EP 3849729A1 EP 19758973 A EP19758973 A EP 19758973A EP 3849729 A1 EP3849729 A1 EP 3849729A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strand
- casting
- supporting
- casting strand
- target temperature
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 185
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000009749 continuous casting Methods 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 110
- 239000000463 material Substances 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000003319 supportive effect Effects 0.000 claims 1
- 230000006870 function Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000004364 calculation method Methods 0.000 description 6
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 239000007921 spray Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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
- B22D11/16—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
-
- 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
Definitions
- the invention relates to a method for controlling or regulating the temperature of a casting strand in a continuous casting installation according to the preamble of claim 1 and claim 4, respectively.
- the operation of the secondary cooling is usually realized with spray or cooling water, the amount of water that is applied to the surfaces of the casting strand being set by specifying target temperature curves.
- a setpoint temperature curve determines the setpoints for the surface temperature to be reached, which the strand reaches within the supporting strand guide, for example at the end of individual cooling zones which are part of this supporting strand guide.
- the spray water quantities of the secondary cooling are regulated so that these target values are achieved.
- WO 2009/071236 A1 it is known to dynamically adapt the target temperature of the casting strand on the basis of data and / or signals, for example possibly changed casting parameters, in the operation of a continuous casting installation.
- the target temperatures are reset to their original values if the casting parameters return to the expected range.
- the object of the invention is to optimize the energy content of the casting strand at the end or when leaving the supporting strand guide during continuous casting. This object is achieved by a method having the features of claim 1 and by a method having the features of claim 4.
- Advantageous developments of the invention are defined in the dependent claims.
- a method according to the present invention is used to control or regulate the temperature of a casting strand in a continuous casting installation.
- the casting strand after the continuous exit from a mold is guided along a conveying direction by a supporting strand guide of the continuous casting installation, which has at least one segment with a secondary cooling, the secondary cooling being set by a control or regulating unit and thus the surfaces of the casting strand be cooled.
- a temperature field is calculated for the casting strand along its conveying direction within the supporting strand guide and a position of the bottom tip of the casting strand is determined therefrom.
- a plurality of target temperature curves for the surface of the cast strand are stored in a memory of the control unit for a material to be cast in the cast strand.
- the invention provides a method for controlling or regulating the temperature of a casting strand in a continuous casting installation, in which the casting strand, after continuously emerging from a mold, is supported by a supporting strand guide of the continuous casting installation, which has at least one segment with secondary cooling is guided in a conveying direction, wherein the secondary cooling is set by a control or regulating unit and thus the surfaces of the cast strand are cooled.
- a temperature field is calculated for the casting strand along its conveying direction within the supporting strand guide and a position of the bottom tip of the casting strand is determined therefrom.
- a plurality of setpoint temperature curves for the surface of the cast strand are stored in a memory of the control unit for a material of the cast strand to be cast.
- step (i) it is of particular importance that in step (i) it is checked whether the position of the bottom tip of the casting strand lies in a predetermined permissible range within the supporting strand guide.
- the predetermined time which is checked as a condition for a non-change of the set target temperature curve, can also be more than 5 minutes, for example 6 minutes, 7 minutes, 8 minutes, 9 minutes, 10 minutes, or is either longer than 10 minutes or lies between the values just mentioned.
- the coldest and warmest possible target temperature curve for each material to be cast on a casting strand can be redetermined, and on the basis of this, all further setpoint temperature curves between the coldest and warmest setpoint temperature curve can be determined or defined. Following this, these target temperature curves are then stored in the memory of the control or regulation unit in order to be able to carry out the invention.
- a temperature field is determined, preferably calculated, for the casting strand along its conveying direction within the supporting strand guide, so that the associated temperature is known for each calculated node of the casting strand, namely at a specific point on the Casting strand or the system length, in particular within the supporting strand guide and its cooling segments.
- An exact position of the bottom of the sump for the casting strand can then be determined.
- a method according to the present invention is based on the essential finding that the specific position of the bottom of the casting strand serves as an input variable in order to set or change a specific target temperature curve for the secondary cooling of the supporting strand guide.
- the current position of the sump tip of the casting strand and the associated check as to whether this position of the sump tip is either within the predetermined permissible range or where exactly within this range then lead to an adjustment or change of a selected target temperature curve such that the Energy content of the casting strand at the end of the supporting strand guide is as high as possible.
- a selected target temperature curve such that the Energy content of the casting strand at the end of the supporting strand guide is as high as possible.
- step (i) is the checking of the position of the bottom tip of the casting strand provides for the area within the supporting strand guide of the continuous caster in which a position of the sump tip is optimal, namely in connection with the metallurgical length (calculated from the casting level to the last pair of support rollers within the supporting strand guide).
- this “predetermined permissible range” is an area of the supporting strand guide in which, on the one hand, the casting strand is just sufficiently cooled and there is therefore no danger that the casting strand with its still liquid sump tip comes out of the supporting strand guide in the The pouring or conveying direction “migrates out” and in which, on the other hand, the casting strand is not cooled too much by selecting a suitable target temperature curve for the secondary cooling, so that the heat content of the casting strand remains as high as possible until it leaves the supporting strand guide.
- Limits of this “predetermined permissible range” are not rigid or unchangeable, but can be changed either before the program starts or during the casting operation.
- the bottom length of the casting strand is as long as possible in relation to the extent or length of the supporting strand guide and is always within the predetermined permissible range. This takes advantage of the fact that the
- the energy content of the casting strand depends directly on the length of the sump tip: the longer the sump tip, the greater the energy content of the casting strand, at least at the end of the supporting strand guide, before the (completely solidified) casting strand then leaves the strand guide. It is of further importance for the invention that the cooling set does not change continuously during operation of the continuous casting installation. In view of this, the setting or selection of a specific target temperature curve for the secondary cooling is not linked to an exact position at which the bottom of the casting strand is currently located, but to an area within which the bottom is located. This area is the “predetermined permissible area” of the supporting strand guide explained above.
- a setpoint temperature curve is then that was defined before the start of the casting process for a specific material, selected such that the sump tip remains within this predetermined permissible range during the casting process, which thus acquires the property of a “target area”.
- the cooling for the casting strand in the area of the supporting strand guide is only changed when it is determined that the bottom tip of the casting strand is no longer in a desired interval, ie the predetermined permissible area of the supporting strand guide.
- the invention is not based on the fact that the cooling capacity is already changed when the bottom tip of the casting strand already deviates from a precisely defined point.
- the aim of the present invention is that the energy content of the casting strand at the end of the supporting strand guide is or becomes as high as possible without the sump length of the casting strand becoming too large. On the one hand, this avoids the risk that the casting strand with its sump tip "runs out” of the last cooling segment of the supporting strand guide, and also achieves the advantage that the highest possible furnace inlet temperature is achieved for the casting strand. It is also pointed out that the “cold-critical” area of the supporting strand guide is the area which, viewed in the direction of conveyance of the casting strand, adjoins the predetermined permissible area upstream.
- the temperature of the casting strand is too low or “too cold” with regard to the length of the supporting strand guide if the (calculated) bottom tip of the casting strand is in this cold-critical area.
- the “warm-critical” area of the supporting strand guide is the area which, viewed in the direction of conveyance of the casting strand, adjoins the predetermined permissible area downstream.
- the temperature of the casting strand is too high or “too warm” with regard to the length of the supporting strand guide if the (calculated) bottom tip of the casting strand is in the warm-critical area.
- the cooling capacity of the secondary cooling is set to a maximum value, i.e. the secondary cooling is set to the coldest possible setpoint temperature curve, if it should be determined in step (ii) that the bottom tip of the casting strand is in a safety area which - seen in the direction of conveyance of the casting strand - is downstream of the warm-critical area.
- maximum cooling prevents the bottom of the casting strand from threatening to run out of the area of the supporting strand guide.
- the swamp tip is on the right edge of the predetermined permissible range, that is to say shifted from a center of the predetermined permissible range in the direction of the warm-critical range, but in any case is still within the predetermined allowable range. This is achieved in that if the target temperature curve set in the area of the supporting strand guide has been moving for a predetermined time, for example has not changed for at least 10 minutes, then the cooling capacity is reduced by setting the secondary cooling to the next warmer target temperature curve.
- This setting is made on the condition that the bottom length of both this selected next warmer target temperature curve and the next but one warmer target temperature curve are both still in the predetermined permissible range of the supporting strand guide.
- a predetermined time for example 10 minutes
- steps (i) and (ii) are expediently carried out fully automatically by the control or regulating unit.
- This ensures that the bottom of the casting strand always lies in the predetermined permissible range or returns there.
- This ensures that on the one hand the casting strand always has the highest possible energy content, especially at the end of the supporting strand guide, and that on the other hand the cooling is automatically increased if the bottom tip of the casting strand should become too long. Since the position or position of the sump tip can move in an interval, namely within the predetermined permissible range, constant process parameters can be poured over a longer period of time.
- the analysis-dependent calculation of the optimal limit and setpoint temperature curves enables a high energy content to be achieved at the end of the supporting strand guide for each material from which a casting strand is manufactured or cast.
- FIG. 1 shows a schematically simplified side view of a continuous casting installation with which a method according to the present invention can be carried out
- FIG. 2 shows a diagram for possible target temperature curves that can be selected when carrying out a method according to the invention for the secondary cooling of the continuous casting plant from FIG. 1,
- 5a, 5b show a flow chart to illustrate a step sequence of a
- Fig. 6 is a diagram for the solidification length
- Fig. 7 is a diagram for the average temperature at the oven inlet.
- FIGS. 1 to 7 Preferred embodiments for a method according to the invention, which is used to control or regulate the temperature of a casting strand 10 in a continuous casting installation 12, are explained below with reference to FIGS. 1 to 7.
- the same features in the drawing are provided with the same reference numerals. At this point, it is pointed out separately that the drawing is only simplified and in particular is shown without a scale.
- the Continuous casting plant 12 comprises a mold 14 which has a vertical exit downwards. Liquid metal is poured into the mold 14, a casting strand 10 then emerging from the mold 14 downward.
- the continuous casting plant 12 comprises a strand guide, along which the casting strand 10 is moved or transported in a conveying direction F.
- the strand guide can be divided into individual segments, as indicated in the illustration in FIG. 1 by the numbers 1-7.
- the segments 1-4 are designed as cooling segments and combined to form a supporting strand guide 16, in which the casting strand 10 is provided from both sides with secondary cooling (not shown), e.g. through spray nozzles, with a cooling medium, in particular in the form of water, and is thus specifically cooled.
- secondary cooling e.g. through spray nozzles
- the supporting strand guide 16 with the individual cooling segments 1 to 4 is - seen in the conveying direction F of the casting strand 10 - immediately downstream of the mold 14 or arranged downstream thereof. Accordingly, the
- the amounts of water of the secondary cooling are regulated in such a way that the temperatures at the surfaces of the ends of the cooling segments 1 -4 of the casting strand 10 correspond to the objectives of a target temperature curve set or selected for this purpose. This will be explained separately below.
- the continuous casting installation 12 further comprises a control or regulating unit 18, which is signaled over a signal path (symbolized in FIG. 1 by a dotted line 20) with the secondary cooling of the cooling segments 1 -4 the supporting strand guide 16 is connected.
- This signal path can be wired or wireless, for example by a radio path or the like.
- the control or regulating unit 18 comprises a memory 19, in which a plurality of target temperature curves are stored.
- the diagram in FIG. 2 shows exemplary setpoint temperature curves i - x, 16 setpoints for the segments 1 - 4 of the supporting strand guide for those to be achieved
- the target temperature curve # i is the “warmest” temperature curve, which is characterized by the Secondary cooling of the supporting strand guide 16, comparatively little cooling water is sprayed onto the surfaces of the casting strand 10, and as a result the (surface) temperature of the casting strand is comparatively high.
- the target temperature curve # x is the “coldest” temperature curve, in which comparatively large amounts of cooling water are sprayed onto the surfaces of the casting strand 10 by the secondary cooling of the supporting strand guide 16, so that the (surface) temperature of the casting strand 10 is cooled more strongly and takes on lower values.
- the coldest and warmest possible target temperature curve are redetermined depending on the analysis of the material, and on the basis of this, all further target temperature curves between the coldest and warmest target temperature curve are determined, e.g. according to the principle of linear interpolation.
- many variation calculations are carried out for all possible material groups, strand thicknesses, casting speeds and casting temperatures.
- an assigned bottom length is calculated on the basis of a regression equation, namely
- Bottom length aO + a1 * strand thickness + a2 * casting speed + a3 * overheating + a4 * carbon content determined, the coefficients aO, a1, a2, a3, and a4 being stored in the memory 19 of the control and regulating unit 18 for all cooling curves.
- the calculation of a current sump length of the casting strand 10 for a currently set target temperature curve takes place only taking into account the current casting parameters, so that a current position of the sump tip for the casting strand 10 can be determined
- control or regulating unit 18 it is also possible to determine a temperature field for the casting strand 10 along its conveying direction F within the supporting strand guide 16, for example by calculation based on the known casting parameters. From the knowledge of the temperatures for the casting strand 10, a conclusion regarding the exact position of the bottom tip of the casting strand 10 can then be obtained, taking into account the solidus temperature of a respective material that is used for the continuous casting of the casting strand 10. To verify the temperatures calculated for the casting strand 10, it is possible to attach suitable (temperature) sensors at certain points along the supporting strand guide, with which the actual temperatures of the casting strand 10 are then determined, in particular on the surfaces thereof, and possibly with the previously calculated ones Values can be compared. In this regard, it goes without saying that the control or regulating unit 18 is also connected to the sensors (not shown) via a signal path in order to receive the measured values of these sensors.
- the coldest and warmest possible target temperature curves are determined anew depending on the analysis of the material.
- the length of the supporting strand guide 16 is divided into different areas, namely in a predetermined permissible area B, a cold-critical area K, a warm-critical area W, and a safety area S.
- the cold-critical area is seen in the conveying direction F of the casting strand 10 K upstream of the predetermined permissible range B, the warm-critical range W and the safety range S, in this order, each being downstream of the predetermined permissible range B.
- These four areas are illustrated in FIG. 3 on the basis of a circuit diagram, which will be explained below.
- the limits of these areas are preferably determined before the start of the continuous casting process, and can also be changed or adapted during the casting operation.
- the areas B, W and S of the areas K, B, W and S, or at least the predetermined permissible area B may or lie in the last cooling segment 4 of the supporting strand guide 16 should).
- the boundaries between the areas K, B, W and S can preferably also lie between the cooling segments.
- the aim of selecting or setting a suitable target temperature curve for the secondary cooling of the supporting strand guide 16 is that a position of the bottom tip of the casting strand 10, in FIG “PS” denotes, is always within the predetermined permissible range B. In the representation of FIG. 3, the position of the sump tip PS is approximately in the middle within the area B.
- the amount of spray water in the area of the supporting strand guide 16 varies so that at the ends of the cooling zones of the supporting strand guide 16 the surface temperatures of the casting strand 10 match the values of the currently set target temperature. This is illustrated in the diagram of FIG. 2 and corresponds to step S3 in FIG. 5a.
- step (i) of a method according to the invention it is first checked whether the position of the sump tip PS is within the predetermined permissible range B. 5a, this corresponds to a sequence of steps S4, S6, S8 and S10.
- Set temperature curve is set (steps S4 + S5 of Fig. 5a). This is symbolized in FIG. 3 for the temperature curves which are indicated in the area K by the arrow pointing obliquely upward to the right.
- the position of the swamp tip PS then “migrates” in the conveying direction F back into the predetermined permissible range B.
- Steps S6 + S7 of Fig. 5a Steps S6 + S7 of Fig. 5a.
- the position of the sump tip PS then also “moves” back to the predetermined permissible range B against the conveying direction F.
- Steps S8 + S9 of Fig. 5a so that in any case it is avoided that the sump tip comes out of the supporting strand guide 16.
- the position of the sump tip PS within the predetermined permissible range B becomes according to a further embodiment of a method according to the invention optimized.
- Border areas are defined along the supporting strand guide 16, namely a first border area G1 between areas B and K, and a second border area G2 between areas B and W. These two border areas G1 and G2 are each completely within the predetermined permissible area B, and make part of it from, for example, 20% each.
- the optimization just mentioned within the permissible range B now works as follows:
- the use of the quantities stored in the memory 19 at the beginning of the continuous casting process and the said regression equation (s) in order to determine the bottom length of the two adjacent next higher target temperature curves in the last-mentioned embodiment is based on the fact that these neighboring curves have other target temperature curves and thus have a cooling different from the current casting process.
- the sump positions of the adjacent curves can also be determined using a further computing module, in which case the current casting parameters in combination with the cooling changed by the other target temperature curves are included in the calculation or are taken into account accordingly.
- the position of the sump tip PS is shifted within the predetermined permissible range B - as shown in FIG. 3 - in the direction of the right edge or in the direction of the warm-critical area W.
- Said predetermined time can also deviate from said 10 minutes, and e.g. either take a value of> 5 minutes, have a value between 5 and 10 minutes, or 1 1 minutes, 12 minutes, 13 minutes, 14 minutes, 15 minutes, 16 minutes, 17 minutes, 18 minutes, 19 minutes or 20 minutes amount, or assume values of> 20 minutes.
- step (ii) of this method is carried out in accordance with step (ii) of this method as to whether it is then possible to switch to the target temperature curve # iii.
- step (ii) of this method it is pointed out that it is not possible at all casting speeds to select the warmest target temperature curve from the plurality of possible target temperature curves, which are shown, for example, in FIG. 2. This is due to the fact that the cooling of the casting strand in the area of the supporting strand guide should always be sufficiently high or intensive that the strand shell between the support rollers in the individual segments of the supporting strand guide does not bulge.
- the cooling of the casting strand, in particular in the first (inlet) segments of the supporting strand guide 16, must not be set too low, because otherwise the casting strand would undesirably bulge between the support rollers due to the strand shell being too thin.
- step ii shows a circuit diagram according to a further embodiment of a method according to the invention. If it should now be recognized in step ii that the position of the sump tip PS of the casting strand 10 should lie in one of these boundary regions G1, G2 (fulfillment of the “YES” condition, in step S1 1 of FIG.
- the cooling capacity becomes Secondary cooling suitably changed (ie reduced if the position of the sump tip PS is in the first border area G1; and increased if the position of the sump tip PS is in the second border area G2), namely on the condition that an additional query should be made to determine that the position of the swamp tip (or the swamp length) “wanders” at a relatively high or significant speed and moves either in the direction of the cold-critical area K or in the direction of the warm-critical area W.
- the bottom of the cast strand is achieved according to the invention 10 does not even get into the critical areas K or W when their position in one of the border areas G1 or G2 is recognized.
- step S15 or S16 can also go directly to step S12 (see FIG. 5b).
- the sump tip would either run into the safety area S or even run out of the last segment 4 of the supporting strand guide 16 by further increasing the sump length. Otherwise, ie in the event that the position of the sump tip PS changes only slightly within the second limit range G2, namely with a value of ⁇ 1% of the total sump length of the casting strand 10, the method can then proceed from step S18 to step S12 ( see Fig. 5b) go.
- Step S3 of Fig. 5a goes back.
- this change can correspond to at least 1% of the change in the total bottom length of the casting strand 10.
- the "speed" at which the sump tip moves its position also a change in the total swamp length by 1, 1%, 1, 2%, 1, 3%, 1, 4%, 1, 5%, 1, 6%, 1, 7%, 1, 8%, 1, 9%, 2.0%, 2.1%, 2.2%, 2.3%, 2, 4%, 2, 5%, 2, 6%, 2, 7%, 2, 8%, 2.9%, 3.0%, or assume values that are either greater than 3.0% or between the above values.
- FIGS. 6 and 7 illustrate the advantages of the invention over the conventional operation of a continuous casting installation.
- 6 illustrates the solidification length of the casting strand
- FIG. 7 illustrates the average temperature of the casting strand 10 at the inlet of a furnace (not shown) after the casting strand 10 has left the supporting strand guide 16, as a function of time, respectively.
- the graphs according to the thick solid line are each achieved with a method according to the invention, the graphs according to the dotted lines in each case using a method or a method
- FIG. 6 illustrates that longer solidification lengths can be achieved with a method according to the present invention, synonymous with larger sump lengths and thus a higher energy content of the casting strand at the end of the supporting strand guide 16.
- Fig. 7 illustrates that with the invention a higher average temperature at Oven inlet is reached, which is on average above a desired target temperature.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018215583.6A DE102018215583A1 (de) | 2018-09-13 | 2018-09-13 | Verfahren zur Steuerung oder Regelung der Temperatur eines Gießstrangs in einer Stranggießanlage |
PCT/EP2019/072687 WO2020052944A1 (de) | 2018-09-13 | 2019-08-26 | VERFAHREN ZUR STEUERUNG ODER REGELUNG DER TEMPERATUR EINES GIEßSTRANGS IN EINER STRANGGIEßANLAGE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3849729A1 true EP3849729A1 (de) | 2021-07-21 |
EP3849729B1 EP3849729B1 (de) | 2022-11-02 |
Family
ID=67766172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19758973.2A Active EP3849729B1 (de) | 2018-09-13 | 2019-08-26 | Verfahren zur steuerung oder regelung der temperatur eines giessstrangs in einer stranggiessanlage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3849729B1 (de) |
DE (1) | DE102018215583A1 (de) |
WO (1) | WO2020052944A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020209794A1 (de) | 2020-08-04 | 2022-02-10 | Sms Group Gmbh | Verfahren zur Steuerung oder Regelung der Temperatur eines Gießstrangs in einer Stranggießanlage |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007058109A1 (de) | 2007-12-03 | 2009-06-04 | Sms Demag Ag | Vorrichtung zur Steuerung oder Regelung einer Temperatur |
DE102011082158A1 (de) * | 2011-09-06 | 2013-03-07 | Sms Siemag Ag | Gießverfahren, insbesondere Stranggießverfahren |
KR101709623B1 (ko) * | 2012-08-14 | 2017-02-23 | 제이에프이 스틸 가부시키가이샤 | 응고 완료 위치 제어 방법 및 응고 완료 위치 제어 장치 |
-
2018
- 2018-09-13 DE DE102018215583.6A patent/DE102018215583A1/de not_active Withdrawn
-
2019
- 2019-08-26 EP EP19758973.2A patent/EP3849729B1/de active Active
- 2019-08-26 WO PCT/EP2019/072687 patent/WO2020052944A1/de active Search and Examination
Also Published As
Publication number | Publication date |
---|---|
EP3849729B1 (de) | 2022-11-02 |
WO2020052944A1 (de) | 2020-03-19 |
DE102018215583A1 (de) | 2020-03-19 |
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