WO2024252030A1 - Einrichtung und verfahren zum aufheizen einer bramme - Google Patents
Einrichtung und verfahren zum aufheizen einer bramme Download PDFInfo
- Publication number
- WO2024252030A1 WO2024252030A1 PCT/EP2024/065984 EP2024065984W WO2024252030A1 WO 2024252030 A1 WO2024252030 A1 WO 2024252030A1 EP 2024065984 W EP2024065984 W EP 2024065984W WO 2024252030 A1 WO2024252030 A1 WO 2024252030A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating device
- slab
- temperature
- heating
- forming
- 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
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
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- 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
- B22D11/1213—Accessories for subsequent treating or working cast stock in situ for heating or insulating strands
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
Definitions
- the invention relates to a device and a method for heating a slab made of a steel material. Furthermore, the invention also relates to a system with such a heating device.
- Cold slabs are traditionally heated in different furnaces to the rolling temperature before the first pass.
- the heating process before the first pass in a rolling mill requires around 80% of the total energy consumption to produce a hot strip. This energy is currently provided largely from fossil fuels.
- WO 2020/115 781 A1 describes a process in which different slab dimensions can be formed into a hot strip in a common rolling mill.
- a continuous casting plant is directly connected to the rolling mill line and provides hot slabs from the rolling mill's casting process.
- other slab dimensions can be fed into the line as cold slabs.
- EP 0 610 028 A2 shows a method for producing a hot strip with a continuous casting and rolling mill, whereby hot slabs can be temporarily stored in an insulated storage facility.
- the insulated storage facility is arranged parallel to the preheating furnaces of the rolling mill and can exchange slabs laterally to the direction of movement of the slabs in the rolling mill.
- WO 2023/052 500 A 1 discloses a method for producing flat rolled products from thick steel or non-ferrous metal slabs.
- different electrical heating devices are used to heat the edges and surfaces of the slabs.
- the application at least implicitly discloses the features of the preamble of claim 1.
- the invention is based on the object of developing a known heating device and a known method for heating slabs, as well as a known system, in such a way that the heating of a slab to a forming temperature required for forming is made more energy efficient and flexible.
- slab is representative of a preliminary product made of steel.
- casting plant includes a cross-cutting device which is used to separate an initially endlessly cast cast strand into individual slabs, i.e. to separate the individual slabs from the cast strand.
- the term forming device refers in particular to a rolling stand, a rolling mill and/or an upsetting device.
- the term forming temperature refers to the temperature that the slab must have when it is subjected to a first forming step within the forming device.
- the third target temperature to which the slab is heated within the third heating device must be dimensioned such that this forming temperature of the slab is reached in the forming device; any temperature losses on the transport route between the outlet of the third heating device and the forming device must be taken into account. For the sake of simplicity, however, these losses are neglected in the present description and instead the target temperature of the third heating device is equated to the forming temperature for simplicity.
- the heating device to which the slab to be heated should first be fed from outside the heating device, not only this one (number word) selected heating device is selected, but also all subsequent heating devices and thus an entire heating sequence or heating route for the slab until the necessary forming temperature is reached are individually selected and determined. In this way, the best heating sequence can be selected for each slab depending on its current actual temperature; in this respect, the selection claimed is flexible. Also, not every slab always has to go through all the heating devices; this is energy efficient. Running through one or more of the different heating devices can take place without changing the furnace curves.
- the core of the invention is the definition of an energy-optimized sequence of different heating steps, depending on the actual temperature of the slab.
- the first heating device is a preheating device to which a first input temperature range is assigned.
- the first heating device slowly heats the slabs up to a maximum of a first target temperature.
- the The first target temperature can correspond to the final temperature of the first input temperature range.
- the slow heating prevents the formation of cracks during the subsequent inductive heating phase.
- the slow heating is also advantageous compared to holding the slab in the third heating device for a longer period at a temperature close to the forming temperature, as this would lead to undesirable structural changes.
- the preheating also significantly reduces the energy consumption in the third heating device, which is more energy efficient overall.
- the slabs are heated to a second target temperature that is matched to the third heating device.
- the easily adjustable electrical energy of the slab which can be provided by renewable energy sources, means that the second heating step can be specifically adjusted to the input temperature and the specific properties of the material in terms of magnetic properties. It is also possible to specifically control the heating steps in terms of time, taking into account the core and surface temperatures. This is particularly advantageous if the second furnace is made up of several inductors arranged in series. This means that heating can be used effectively even if the Curie temperature is exceeded.
- the slabs are heated to a third target temperature, typically the forming temperature required for forming the slabs, in particular for rolling in the forming device.
- a third target temperature typically the forming temperature required for forming the slabs, in particular for rolling in the forming device.
- This heating device is fired with natural or artificial gas, oil, hydrogen or similar. If a simulation or pre-calculation of the temperature of the slab in the third heating device using a temperature model or a measurement of this temperature shows that the required If the forming temperature has not yet been reached, the residence time of the slab in the third heating device is extended until the forming temperature is reached.
- the different heating devices can preferably be used to carry out specific heat treatments on the slabs in an energy-optimized manner in order to specifically create specific microstructures, especially before forming.
- specific microstructures especially before forming.
- precipitations at grain boundaries can be specifically created or suppressed in this way.
- a cooling device in particular a cooling device with water, water-air or air as a coolant, can preferably be used for the targeted and energy-optimized cooling of a slab made of a special, e.g. micro-alloyed material, before this slab is then later fed back to the first or second heating device.
- a higher-level control in the form of a pure control or a regulation, controls/regulates the processes in the heating device or the system according to the invention, preferably by means of a process model or a production planning model for carrying out the method according to the invention.
- the latter model optimizes, for example, the production sequence of production orders, in particular the feeding of the slabs with their different actual temperatures, using an optimization algorithm and/or self-learning artificial intelligence so that the energy consumption of the heating equipment is minimized in relation to the total energy consumption or the slab-related energy consumption.
- the production planning model provides the controls for each individual slab, e.g. a specific time-temperature curve.
- the heating device can provide a recuperation system for transferring the waste heat from the third heating device to the first heating device, ie from the more energy-intensive heating device with the greatest waste heat to a less energy-intensive heating device.
- the second heating device does not require any additional heat supply due to its inductive mode of operation.
- a particular advantage of the method according to the invention lies in the calculation of a start time for feeding the slab to the selected heating device with the aid of the process model so that the slab is heated to the forming temperature and has reached the forming device at the forming time.
- This calculation is carried out, for example, with the aid of a product planning, temperature and/or process model of the control system, optimized in terms of time and/or energy.
- Optimized in terms of time means that as little time as possible passes between the start time and reaching a forming time at which the slab enters the forming device with the forming temperature.
- Energetically optimized means that as little energy as possible is consumed during this time, both in relation to the energy consumption of an individual slab and in relation to the overall energy consumption of the system.
- the third heating device Due to its design, the third heating device has the advantage that disruptions in the rolling operation can be buffered so that delays do not immediately lead to the unnecessary removal of a slab from the third furnace, combined with undesirable cooling effects. Further advantageous embodiments of the heating device, the system and the method according to the invention are the subject of the dependent claims.
- Figure 1 illustrates the system according to the invention with the heating device according to the invention and the method according to the invention.
- Fig.1 shows the system 100 according to the invention, for example a steelworks. It has a first storage facility 21, in particular an open-air storage facility without a (heat) insulation hood, in which the slabs are stored, for example, at an actual temperature equal to the ambient temperature or at an actual temperature of, for example, up to 400°C.
- the system 100 can have a second storage facility 2T that is covered with a (heat) insulation hood, for storing slabs with an actual temperature of, for example, up to 900°C.
- the storage facilities can also be slab pits.
- the system 100 can have a casting facility 22 for producing slabs 2 with an actual temperature of, for example, >900°C at the outlet of the casting facility.
- the system 100 comprises a heating device 1 according to the invention with a first, second and third heating device 11, 12, 13.
- the first and third heating devices 11 are each designed as a heating device operated with a fuel, in particular with natural gas, hydrogen and/or petroleum.
- the second heating device 12 is operated inductively, i.e. with electrical current.
- the heating device 1 and thus also the system 100 has a transport device 14 with transport sections 14-1 to 14-6, eg in the form of driven roller tables, which are also designed, among other things, to feed the slabs 2 from outside the heating device 1, ie from one of the bearings 21, 21' or from the output of a
- a selected heating device of the heating device 1 At least some of the transport sections are suitably controlled by the control system.
- At least some of the transport sections in particular the intermediate transport sections 14-2, 14-3 between two of the transport sections
- Heating devices may have an insulation hood for forming thermally insulated areas 141 and/or thermally insulated storage locations 142 for the slabs 2.
- Each of the heating devices 11, 12, 13 has its own internal transport devices, e.g. in the form of driven roller tables for feeding, passing through and discharging the slabs.
- a temperature determination device 4 of the heating device 1 and thus also of the system 100 is used to determine the current actual temperature of the slab or to calculate its temperature in advance or retrospectively.
- the temperature can be determined by measurement in particular at locations in the system that are easily accessible, e.g. the storage area 21, 2T or a slab treatment device 23, the casting system 22, at the inlets or outlets of the heating devices 11, 12, 13 or the forming device 30 or on the transport sections.
- the temperature of the slab can also be determined by simulation using a temperature model that can be assigned to the control system or the temperature determination device, typically in locations that are difficult to access, such as inside the heating devices or inside the forming device.
- a higher-level control 3 of the heating device 1 and thus also of the system 100 is designed to control or regulate the heating devices 11, 12, 13 and the transport device 14 for the slabs 2 for carrying out the method according to the invention, preferably also taking into account the temperatures determined by the temperature determination device.
- the heating device 1 and thus also the system 100 can also be provided with a recuperation system 6 which is connected to the first and third heating devices 11, 13 for transferring the waste heat of the third heating device 11 to the first heating device 13 in order to save energy and costs in this way.
- a recuperation system 6 which is connected to the first and third heating devices 11, 13 for transferring the waste heat of the third heating device 11 to the first heating device 13 in order to save energy and costs in this way.
- the system 100 also includes a forming device 30 connected downstream of the heating device 1 and in particular its third heating device 13, in particular a rolling mill and/or an upsetting device, for forming the slabs 2 heated to the forming temperature in the third heating device 13.
- a forming device 30 connected downstream of the heating device 1 and in particular its third heating device 13, in particular a rolling mill and/or an upsetting device, for forming the slabs 2 heated to the forming temperature in the third heating device 13.
- the heating device 1 is used to heat the slab 2 made of a steel material. Its three heating devices 11, 12, 13 are arranged one behind the other in a direction of flow R. Its transport device 14 with the transport sections 14-1 ... .14-6 is used not only to transport the slab from outside the heating device 1 to the selected heating device, but also to transport the slab in the direction of flow R between the heating devices 11, 12, 13 and to transport the slab from the third heating device 13 to the forming device 30. All of this, as well as the interaction with the temperature determination device 4, is coordinated, in particular controlled or regulated, by the higher-level control system 3. In particular, all transport sections 14-1 ... - 6 - as far as necessary - are suitably controlled to carry out the (work) steps of the method according to the invention.
- the first heating device 11 with an associated first input temperature range for the slabs to be heated of, for example, up to 400°C is set up and designed to heat the slab to a first target temperature, for example ⁇ 450°C or ⁇ 400°C.
- the second heating device 12 is designed as an inductive heating device with an associated second input temperature range for the slab to be heated of, for example, 400°C to 900°C and is arranged and designed to heat the slab to a second target temperature of, for example, ⁇ 950°C or ⁇ 900°C.
- the third, conventional heating device 13 with an associated third input temperature range for the slab to be heated of, for example, > 900°C is set up and designed to heat the slab 2 to a third target temperature, typically a material-specific forming temperature Tu, for example from a range of 1230°C to 1250°C, in particular a rolling temperature.
- a third target temperature typically a material-specific forming temperature Tu, for example from a range of 1230°C to 1250°C, in particular a rolling temperature.
- the target temperatures preferably correspond to the maximum temperature of the respective input temperature range.
- the three input temperature ranges preferably adjoin one another without gaps. This has the advantage that each slab with an actual temperature up to the level of the temperature that defines the end of the third input temperature range, i.e. for example the third target temperature, can be clearly assigned to exactly one of the three heating devices that the slab should pass through first.
- the higher-level control 3 is designed to carry out the method according to the invention. This includes selecting the first, second or third heating device 11, 12, 13, in whose input temperature range the actual temperature of the slab to be heated, determined by the temperature determination device 4, falls; see the dashed selection area in Fig. 1.
- the slab to be heated is first fed from outside the heating device 1 to precisely this heating device selected in this way.
- the transport sections of the transport device are controlled accordingly, as previously described.
- a slab with an actual temperature of, for example, ⁇ 400°C, in particular with the ambient temperature as the actual temperature is first fed into the first heating device 11 in the form of a preheating device, before it subsequently passes through the second and third heating devices 12, 13.
- Slabs with such comparatively low actual temperatures typically come from the (slab) storage or from the (slab) pit without an insulation hood.
- a slab with an actual temperature between, for example, 400°C and 900°C is first fed into the second heating device 12 in the form of an induction heating device before it subsequently passes through the third heating device 13.
- Such slabs are preheated accordingly and can, for example, come from the slab storage area or the slab pit with an insulation hood.
- a slab with an actual temperature of, for example, > 900°C is first or directly fed into the third heating device 13 and is further heated there to the forming temperature that it must have for subsequent forming in the forming device 30.
- Slabs with such a high actual temperature typically come directly from a casting plant.
- the casting heat still present in the slab 2 is optimally utilized; the saves in particular energy costs for later reheating, which would be necessary if slab 2 were to cool down in the meantime.
- slabs - regardless of their origin - can be fed into the forming device at any actual temperature in an energy-efficient manner using the method according to the invention.
- This procedure is energy-efficient and flexible because not all slabs are treated the same and not all heating devices always have to pass through.
- This, i.e. the targeted, selective first feeding of the slabs to an individually and specifically selected heating device according to the invention advantageously means that energy can be saved in the first heating device, for example, approx. 80%, in the second heating device, for example, approx. 60%, and in the third heating device, for example, approx. 55%. This is in comparison to the situation where all slabs always pass through all heating devices.
- the actual temperature of the slab to be heated is determined at the beginning using the temperature determination device 4.
- the starting time at which the slab to be heated is fed to the selected heating device can be determined by performing the following steps:
- the calculation of the starting time is based on the forming time t u , taking into account the duration of the required heating steps and the duration of the transport times of the slab from outside the heating device 1 into the selected heating device. In any case, the duration of the transport time from the third heating device 13 to the forming device 30 is always taken into account. If necessary, ie if the material is not fed directly into the third heating device, the duration of the transport times between individual heating devices 11, 12, 13 is also taken into account.
- the process model 31 or a production planning model can optimize the starting time for feeding the slab 2 to the selected heating device 11, 12, 13 by means of an included optimization algorithm or by means of self-learning artificial intelligence in such a way that the amount of energy required to heat the slab 2 to the forming temperature Tu and/or the processing time, e.g. the number of necessary heating steps, is minimized.
- the third heating device 13 can be used as a time buffer in the event of a planned and/or unplanned interruption of one of the heating steps, by temporarily storing the slab therein until the forming device is available for forming it. Alternatively or simultaneously, the third heating device 13 can also be used to equalize the temperature of the slab therein.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480038410.7A CN121285433A (zh) | 2023-06-09 | 2024-06-10 | 加热板坯的装置和方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023205377.2 | 2023-06-09 | ||
| DE102023205377 | 2023-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024252030A1 true WO2024252030A1 (de) | 2024-12-12 |
Family
ID=91530124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/065984 Pending WO2024252030A1 (de) | 2023-06-09 | 2024-06-10 | Einrichtung und verfahren zum aufheizen einer bramme |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN121285433A (de) |
| DE (1) | DE102024205357A1 (de) |
| WO (1) | WO2024252030A1 (de) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0610028A2 (de) | 1993-01-29 | 1994-08-10 | Hitachi, Ltd. | Verfahren und Vorrichtung zum Stranggiessen und Warmwalzen |
| DE69407253T2 (de) * | 1993-10-19 | 1998-06-25 | Danieli Off Mecc | Mobiler isolierter Förderer für das Stranggiessen von Brammen |
| WO2020115781A1 (en) | 2018-12-06 | 2020-06-11 | Danieli & C. Officine Meccaniche S.P.A. | Apparatus and method for the production of strip |
| DE102020205077A1 (de) * | 2019-09-23 | 2021-03-25 | Sms Group Gmbh | Vorrichtung und Verfahren zur Herstellung und Weiterbehandlung von Brammen |
| DE102020206176A1 (de) * | 2019-12-11 | 2021-06-17 | Sms Group Gmbh | Vorrichtung und Verfahren zum flexiblen Beeinflussen der Prozessführung, insbesondere Temperaturführung, eines entlang einer einzelnen Durchlauflinie durchgeleiteten Metallproduktes mittels mindestens zweier benachbarter Segmente |
| DE102021211339A1 (de) * | 2020-10-13 | 2022-04-14 | Sms Group Gmbh | Vorrichtung und Verfahren zur Herstellung von warmgewalzten Metallbändern |
| WO2023052500A1 (de) | 2021-10-01 | 2023-04-06 | Sms Group Gmbh | Anlage und verfahren zur herstellung von flachwalzprodukten |
-
2024
- 2024-06-10 WO PCT/EP2024/065984 patent/WO2024252030A1/de active Pending
- 2024-06-10 DE DE102024205357.0A patent/DE102024205357A1/de active Pending
- 2024-06-10 CN CN202480038410.7A patent/CN121285433A/zh active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0610028A2 (de) | 1993-01-29 | 1994-08-10 | Hitachi, Ltd. | Verfahren und Vorrichtung zum Stranggiessen und Warmwalzen |
| DE69407253T2 (de) * | 1993-10-19 | 1998-06-25 | Danieli Off Mecc | Mobiler isolierter Förderer für das Stranggiessen von Brammen |
| WO2020115781A1 (en) | 2018-12-06 | 2020-06-11 | Danieli & C. Officine Meccaniche S.P.A. | Apparatus and method for the production of strip |
| DE102020205077A1 (de) * | 2019-09-23 | 2021-03-25 | Sms Group Gmbh | Vorrichtung und Verfahren zur Herstellung und Weiterbehandlung von Brammen |
| DE102020206176A1 (de) * | 2019-12-11 | 2021-06-17 | Sms Group Gmbh | Vorrichtung und Verfahren zum flexiblen Beeinflussen der Prozessführung, insbesondere Temperaturführung, eines entlang einer einzelnen Durchlauflinie durchgeleiteten Metallproduktes mittels mindestens zweier benachbarter Segmente |
| DE102021211339A1 (de) * | 2020-10-13 | 2022-04-14 | Sms Group Gmbh | Vorrichtung und Verfahren zur Herstellung von warmgewalzten Metallbändern |
| WO2023052500A1 (de) | 2021-10-01 | 2023-04-06 | Sms Group Gmbh | Anlage und verfahren zur herstellung von flachwalzprodukten |
Also Published As
| Publication number | Publication date |
|---|---|
| CN121285433A (zh) | 2026-01-06 |
| DE102024205357A1 (de) | 2024-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1960131B1 (de) | Verfahren und vorrichtung zum herstellen eines metallbandes durch giesswalzen | |
| DE69623210T2 (de) | Vorrichtung zur herstellung rostfreier stahlbänder | |
| DE69814513T2 (de) | Walzverfahren und Walzstrasse für dünne Flacherzeugnisse | |
| EP2806985B1 (de) | Verfahren zur herstellung eines metallbandes | |
| EP2456897B1 (de) | Verfahren zur steuerung und/oder regelung eines induktionsofens für eine walzanlage, steuer- und/oder regeleinrichtung für eine walzanlage und walzanlage zum herstellen von walzgut | |
| WO2003045599A1 (de) | Steuerverfahren für eine einer kühlstrecke vorgeordnete fertigstrasse zum walzen von metall-warmband | |
| WO2004076086A2 (de) | Verfahren zur regelung der temperatur eines metallbandes, insbesondere in einer fertigstrasse zum walzen von metallwarmband | |
| WO2009027045A1 (de) | Verfahren und vorrichtung zum herstellen eines metallbandes durch giesswalzen | |
| EP1596999B2 (de) | Verfahren zur regelung der temperatur eines metallbandes, insbesondere in einer kühlstrecke | |
| EP1982134A1 (de) | Rollenherdofen zum aufheizen und/oder temperaturausgleichen von stranggiessprodukten aus stahl oder stahllegierungen und dessen anordnung vor einer warmband-fertigwalzstrasse | |
| DE69818512T2 (de) | Vorrichtung und verfahren zur herstellung von stahlband | |
| EP2531624B1 (de) | Vorrichtung und verfahren zum wärmebehandeln von stahldrähten | |
| EP2480351B1 (de) | Steuerverfahren für eine behandlungsanlage für ein langgestrecktes walzgut | |
| EP2663412B1 (de) | Anlage und verfahren zum erzeugen von warmband | |
| WO2024252030A1 (de) | Einrichtung und verfahren zum aufheizen einer bramme | |
| EP3733323A1 (de) | Verfahren und stranggiessanlage zum giessen eines giessstrangs | |
| EP2718470B1 (de) | Verfahren und vorrichtung zur vorbehandlung eines walzguts vor dem warmwalzen | |
| AT413456B (de) | Verfahren zum optimalen betrieb eines erwärmungsofens | |
| EP4504983A1 (de) | Verfahren zum herstellen eines metallproduktes | |
| WO2023148191A1 (de) | Verzinkungsanlage und verfahren zur verzinkung von stückgut | |
| DE102011082205A1 (de) | Verfahren zum Betrieb eines regenerativ beheizten Industrieofens und regenerativ geheizter Industrieofen | |
| DE3908457A1 (de) | Verfahren und anlage zum herstellen von gewalztem material aus brammen | |
| DE2311616A1 (de) | Analogsimulator fuer waermetauschvorgaenge, insbesondere in einem metallurgischen ofen | |
| DE102023211721A1 (de) | Verfahren zur Regelung der Umformtemperatur in einem Warmwalzwerk sowie Warmwalzwerk | |
| DE19639298A1 (de) | Verfahren und Vorrichtung zur Erzeugung von dünnen Brammen mit direkt anschließendem Walzprozeß/Walzwerk |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24732615 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202647001335 Country of ref document: IN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024732615 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2024732615 Country of ref document: EP Effective date: 20260109 |
|
| WWP | Wipo information: published in national office |
Ref document number: 202647001335 Country of ref document: IN |
|
| ENP | Entry into the national phase |
Ref document number: 2024732615 Country of ref document: EP Effective date: 20260109 |
|
| ENP | Entry into the national phase |
Ref document number: 2024732615 Country of ref document: EP Effective date: 20260109 |
|
| ENP | Entry into the national phase |
Ref document number: 2024732615 Country of ref document: EP Effective date: 20260109 |
|
| ENP | Entry into the national phase |
Ref document number: 2024732615 Country of ref document: EP Effective date: 20260109 |