EP4499324A1 - GIEßWALZANLAGE UND VERFAHREN ZU DEREN BETRIEB - Google Patents
GIEßWALZANLAGE UND VERFAHREN ZU DEREN BETRIEBInfo
- Publication number
- EP4499324A1 EP4499324A1 EP23710005.2A EP23710005A EP4499324A1 EP 4499324 A1 EP4499324 A1 EP 4499324A1 EP 23710005 A EP23710005 A EP 23710005A EP 4499324 A1 EP4499324 A1 EP 4499324A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- slabs
- process line
- strand
- ferry
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/22—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting, i.e. in-line rolling of steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/004—Transverse moving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
Definitions
- the invention relates to a casting-rolling plant and a method for operating it.
- German utility model DE 20 2012 102 639 U1 discloses the arrangement of a scarfing machine for scarfing warm slabs, arranged downstream of a casting machine.
- furnace rollers are installed in the known tunnel furnace, which have spaced support rings on which a casting strand or a slab rests during its transport through the tunnel furnace.
- the support rings are arranged at a distance from one another in the width direction of the casting strand or slab, i.e. in the axial direction.
- the spaced support rings prevent the oven rollers from overheating.
- due to their distance from each other i the contact surface of the casting strand or slabs on these support rings is smaller than on a furnace roll that is continuous in the width direction.
- the support rings in question lead to undesirable rolling-in of scale or undesirable impressions in the underside of the casting strand due to the increased contact pressure or the slab.
- This is particularly undesirable for surface-critical steel grades such as those required by the automotive industry. At the same time, these surface-critical steel grades also have to be flamed regularly.
- the invention is based on the object of developing a known casting-rolling system and a known method for its operation in such a way that, particularly for surface-critical steel grades, a possibility is created to eliminate surface defects and defects close to the surface, such as. B. Errors from the casting process or said unwanted rolling in of scale or e.g. B. to avoid the formation of impressions of the support rings on the undersides of the corresponding casting strands or slabs in the tunnel furnace before a subsequent rolling process.
- the casting-rolling plant according to claim 1 represents a first variant for solving the problem. It is characterized by a second process line arranged parallel to the first process line and a first ferry which can be landed at a landing site between the first separation device and the tunnel furnace and has an associated first control device for directly transferring the first slabs from the first process line to a landing site in the parallel second Process line. Furthermore, the casting-rolling plant according to the invention is characterized by one in the second process line in the casting direction behind the landing place of the first ferry provided scarfing device for conditioning the surface of the first slabs separated from the first casting strand.
- the above-mentioned defects can advantageously be removed from the surfaces of the slabs.
- first ferry alone is sufficient. This applies if the scarfing device and an optional downstream rolling stand can work reversibly in the second process line. A slab flamed and/or rolled in the second process line can also be moved back into the first process line via the first ferry.
- the casting rolling plant has, in addition to the first ferry, also a second ferry for transferring the slabs from the second process line into the first process line behind the tunnel furnace and in front of or into the rolling plant, preferably in front of the first rolling stand.
- a bypass is created with which the tunnel oven can be bridged in the first process line.
- the scarfing device and optionally also the rolling stand in the second process line are operated unidirectionally, only in the direction of the second casting direction.
- the claimed bypass advantageously makes it possible to carry out necessary or advantageous surface conditioning by scarfing outside the first process line and thus not disadvantage production due to possibly slower process speeds.
- the bypass arrangement can prevent an disadvantageous loss of temperature.
- the first variant according to claim 1 essentially reduces the second process line to the scarfing device, preferably as a bypass for the tunnel furnace in the first process line, without an upstream second casting machine.
- claim 7 with the second variant claims a fully-fledged second casting machine in front of the scarfing device.
- the second casting machine enables the production of second casting strands or second slabs in the second process line, which are flamed and optionally rolled there and are subsequently transferred to the first process line.
- the rolling stand and/or the scarfing device in the second process line can optionally also be operated in a reversing manner. Then the second slabs can also be conveyed in the roll stand and/or in the scarfing device in the opposite direction second pouring direction possible. It is then optionally possible to transfer the second slabs from the second to the first casting line using the first ferry.
- both the first and second ferries are preferably present.
- the second variant also offers the same advantages as those described above for the first variant.
- a second ferry arranged downstream of the scarfing device or optionally also the third separating device is provided for transferring the second slabs from the second process line into the first process line behind the tunnel furnace and in front of or into the rolling mill, preferably in front of that first rolling stand.
- the claimed bypass in the form of the second process line with the first and second ferry advantageously offers the possibility of first slabs, if z. B. are cast from surface-critical steel grades, past the tunnel furnace and into the downstream rolling mill.
- the slabs diverted in this way are then not guided over the said support rings on the furnace rollers of the tunnel furnace and in this way the rolling in of scale and the formation of undesirable marks on the surface of the slabs is avoided. This completely avoids contact between the flamed slabs and the support rings in the tunnel kiln.
- the deflected slabs are flamed as desired using the stressed scarfing device in the second process line before they are fed into the rolling mill.
- the possible product portfolio of the casting-rolling systems according to the invention is expanded compared to a known casting-rolling system.
- the possibility is created of being able to produce surface-critical steel grades. Surface defects that result from the casting process can be removed or at least largely reduced before hot rolling in the rolling mill - without interrupting the direct use of the slabs become.
- the claimed system concept increases productivity, energy efficiency and surface quality.
- parallel is not limited to its strict geometric meaning, but also includes an angle of up to +/-45° between the first and second process lines.
- the tunnel furnace is designed to homogenize the casting strands or slabs moving through it with regard to their respective temperature, to keep them at their respective entry temperature into the tunnel furnace or to heat them to a necessary rolling temperature that is higher than their entry temperature into the tunnel furnace.
- the term “tunnel oven” also includes a heated or unheated roller table, preferably encapsulated with a thermal insulation hood.
- the tunnel kiln or roller table has rollers, preferably with said axially spaced support rings.
- a first surface inspection device between the first casting machine and the first ferry offers the possibility of detecting defects in the surface of the first casting strand or the first slab. This in turn opens up the possibility of deciding whether a slab should be subsequently flamed or not, depending on the errors detected.
- the result of the surface inspection can be improved by cleaning, in particular descaling, the surface of the casting strand or slab before inspecting its surface using a first slab cleaning device.
- a target for the surface quality of the slabs can only be achieved by scarfing. If none of the said four criteria are met, the first control device is designed to activate the landing site in the first process line with or without the first ferry landed in order to pass the first casting strand or the first slabs into the tunnel furnace.
- first surface leveling device between the outlet of the casting machine and the first ferry for leveling or surface of the first casting strand or the first slabs.
- a second slab cleaning device and a downstream second surface inspection device can also be provided in the second process line - analogous to the first process line - between the output of the second casting machine and the first ferry to detect errors on the surface of the second casting strand or the second slabs.
- the first control device is also designed to control the first ferry in such a way that the second slabs are transferred with the first ferry from the second to the first process line and further processed there if none of the four following ones Criteria is met:
- the second melt is a surface-critical steel grade.
- a second surface leveling device between the exit of the second casting machine and the scarfing device, preferably in front of the landing site of the first ferry, for leveling the surface of the second casting strand or the second Slabs.
- Roller table sections must be provided to transfer the casting strands or slabs from one unit to another unit or to pass the casting strand or slabs through individual units within a process line or across process lines. These can be encapsulated or unencapsulated and heated or unheated. They can also have roller table rollers without support rings.
- the rolling mill can have a roughing stand and/or a finishing stand rolling mill, preferably with an upstream descaling device.
- the rolling mill can be followed by a cooling section for cooling the rolled metal strip and the cooling section can be followed by a coiling device for winding up the cooled metal strip.
- Figure 3 shows a second exemplary embodiment of the method according to the invention
- Figure 4 shows a third exemplary embodiment of the method according to the invention.
- the rolling mill consists of a roughing mill and/or a finishing mill, each of which can have several rolling mills.
- the second ferry 180 is controlled by an assigned controller 182. Downstream of the rolling mill 190 is typically a cooling line 196, a fourth separating device 195 and a reel device 197, shown in Figure 1 with a metal strip wound into a coil 198.
- the second process line 200 preferably comprises a second casting machine 210, which in turn also has a mold (not shown here) for casting a second metal melt into a second casting strand with a second casting thickness and a downstream strand guide device for transferring the second casting strand, preferably horizontally.
- a second separating device 240 is arranged downstream of the second casting machine 210 in the second casting direction 2.G. Behind this is a 160' landing place for the first ferry 160 as part of a bypass.
- the bypass further comprises a scarfing device 260, on the input side and/or output side of which heating devices 262 can be provided for heating the casting strand or slabs entering the scarfing device 260.
- the bypass can also have a roll stand 270, preferably in the form of a reversing roll stand, and a third separating device 280. The bypass ends with the landing place 180' for the second ferry 180.
- the second ferry 180 is optional in the event that the possible surface impairments caused by the support rings are acceptable to the extent that it is qualitatively sufficient to process the surface by scarfing and minor running marks on the surface caused by the support rings of the tunnel furnace 170 are qualitatively acceptable. This is particularly the case if the scarfing device 260 is intended to preferably remove casting defects and particularly stubborn scale. For particularly surface-sensitive steel grades, the second ferry 180 and the bypass of the tunnel furnace 170 are used.
- Figure 2 shows the casting-rolling plant 1000 according to the invention in the first variant for operation according to a first operating mode. It can be seen that for the first operating mode in the second process line, all units upstream of the first ferry 160 or from its landing place 160 'are unnecessary. All that is required of the second process line 200 is the bypass shown, in particular with the scarfing device 260 and the first ferry 160. The second ferry 180 is optional, as described further below.
- the first operating mode is as follows:
- the first operating mode provides that the first slabs are then transferred back to the first process line 100.
- Either ferry 160 can be used for this purpose. This means that the scarfing device 260 is run through in a reversing manner. In this case there is no need to provide a second ferry.
- an improved surface can be achieved with the help of a second ferry 180.
- the first slab is moved in only one direction by the scarfing device 160 and then transferred back into the first process line 100 with the help of the second ferry.
- they are placed in the first process line behind the tunnel furnace and preferably in front of the first rolling stand 190-1, for example a first roughing stand then immediately rolled into a metal strip by this first roll stand 190-1 and possibly also other roll stands of the rolling mill 190.
- the metal strip can optionally be portioned in the fourth separating device 195 to a predetermined length for individual coils 198.
- the method described according to the first operating mode with two ferries is particularly suitable for surface-critical steel grades.
- the tunnel furnace 170 arranged in the first process line between the two ferries is bridged. This has the advantage that these first slabs diverted in this way do not have to be guided over the slim support rings on the furnace rollers within the tunnel furnace 170, which effectively prevents the rolling in of scale and the formation of marks on the surface of the first slabs.
- FIG. 3 illustrates the second operating mode for the casting-rolling plant according to the invention according to the 2nd variant.
- the second casting machine 210 is in operation instead of or in addition to the first casting machine 110. It produces a second casting strand, which is transported in the second casting direction 2.G in the second process line 200 and processed there as follows.
- the second casting strand or second slabs separated therefrom fulfill(s) at least one of the above-mentioned criteria for scarfing and is/are therefore scarfed in the scarfing device 260 according to the invention.
- the second casting strand is divided into second slabs either upstream of the scarfing device 260 in the second separating device 250 or downstream of the scarfing device 260 in the third separating device 280.
- the second slabs are transferred with the aid of the second ferry 180 from the second process line 200 into the first process line 100 preferably in front of the rolling mill 190.
- the subsequent procedure then takes place analogously to the first operating mode.
- the second casting strand in the second process line 200 can be cleaned, in particular descaled, using the second slab cleaning device and examined for possible surface defects using the second surface inspection device 230.
- the surface of the second casting strand or the second slabs can be further conditioned using the second surface leveling device 250.
- the second casting machine 210 can in particular serve to work with a different, in particular shorter, metallurgical length than the first casting machine 110.
- the second casting machine 210 can also use a mold for casting casting strands with a greater casting thickness compared to the first casting machine 110. In this case, it may be advantageous to reduce the thickness of the second casting strand or the second slabs in front of or behind the scarfing device 260 in the second process line with the aid of the rolling stand 270, for example also reversibly, for example down to the first casting thickness the first casting strand is cast in the first casting machine.
- the second slabs can then be introduced into the rolling mill 190 with the same casting thickness as the first slabs or the first casting strand.
- the advantage mentioned for the first operating mode also applies to the second operating mode described here, namely that the second casting strand or the second slabs do not have to be guided through the tunnel furnace 170 in the first process line. In this way, the formation of undesirable rolling-in of scale or the undesired formation of indentations of the support rings on the surfaces of the second slabs can be effectively prevented.
- the first control device 162 is programmed so that the second slabs are moved from the second process line 200 without burning into the first process line 100 in front of the tunnel furnace 170 using the first ferry 160. These second slabs then pass through the tunnel furnace in the first process line 100 and are then threaded via the second ferry 180 into the rolling mill 190 in order to be reduced in thickness there.
- the following procedure again corresponds to the procedure as described for the first slabs in the first exemplary embodiment.
- the semi-continuous operation provides that the first casting strand is divided into larger slabs, so-called jumbo slabs or super slabs, with the aid of the first separating device 140, the weight of which is greater than a single coil weight 198.
- the metal strip resulting from these slabs at the exit of the rolling mill 190 is initially longer than a single coil 198; the Metal strip is therefore portioned into corresponding individual coil lengths at the exit of the rolling mill 190 using the fourth separating device 195.
- the endless operation ultimately provides that the cast first casting strand as a whole passes through the first process line to the exit of the rolling mill 190. Only then is the resulting metal strip portioned into suitable coil lengths using the fourth separating device 195. i.e. In continuous operation, the first casting strand is not already divided into first slabs with the aid of the first separating device 140.
- the first casting strand or the first slabs can optionally be cleaned with the aid of the first slab cleaning device 120 and/or their surface can be inspected with the aid of the first surface inspection device 130.
- they can also be leveled using the first surface leveling device 150 before they enter the tunnel oven 170.
- the fourth operating mode just like the previously described third operating mode, is preferably only suitable for first casting strands or first slabs which, due to their respective steel quality and/or due to their low inlet temperature into the tunnel furnace, are not at risk of the said undesirable rolling-in of scale or form undesirable impressions on their respective surfaces when passing through the tunnel furnace 170.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022203091 | 2022-03-29 | ||
| DE102022208817.4A DE102022208817A1 (de) | 2022-03-29 | 2022-08-25 | Gießwalzanlage und Verfahren zu deren Betrieb |
| PCT/EP2023/055835 WO2023186471A1 (de) | 2022-03-29 | 2023-03-08 | GIEßWALZANLAGE UND VERFAHREN ZU DEREN BETRIEB |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4499324A1 true EP4499324A1 (de) | 2025-02-05 |
| EP4499324B1 EP4499324B1 (de) | 2026-05-06 |
Family
ID=85556342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23710005.2A Active EP4499324B1 (de) | 2022-03-29 | 2023-03-08 | Giesswalzanlage und verfahren zu deren betrieb |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4499324B1 (de) |
| WO (1) | WO2023186471A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4537950A1 (de) * | 2023-10-10 | 2025-04-16 | Primetals Technologies Austria GmbH | Anlage und verfahren zum herstellen eines metallbandes im endlosbetrieb oder im batchbetrieb |
| WO2026028388A1 (en) * | 2024-08-01 | 2026-02-05 | Primetals Technologies Japan, Ltd. | Transportation device, raising device, rolling facility, transportation method, and temperature raising method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19953252A1 (de) * | 1999-11-04 | 2001-05-10 | Sms Demag Ag | Verfahren zur Oberflächenbearbeitung eines kontinuierlich gegossenen Stahlproduktes und Einrichtung hierzu |
| DE10252246A1 (de) * | 2002-11-07 | 2004-05-27 | Sms Demag Ag | Verfahren und Anlage zur Oberflächenbehandlung innerhalb einer Stranggießanlage |
| KR101189516B1 (ko) * | 2010-02-08 | 2012-10-10 | 주식회사 포스코 | 주편 처리 방법 및 주편 처리 시스템 |
| DE202012102639U1 (de) | 2012-07-17 | 2012-08-06 | Gega Lotz Gmbh | Flämmmaschine zum Flämmen von warmen und kalten Werkstücken, wie Brammen, Blöcke und Knüppel aus Stahl |
| US20170002439A1 (en) * | 2014-01-17 | 2017-01-05 | Danieli & C. Officine Meccaniche Spa | Plant and method for the production of metal |
| KR101998966B1 (ko) * | 2017-11-03 | 2019-07-10 | 주식회사 포스코 | 연주압연장치 및 연주압연방법 |
-
2023
- 2023-03-08 EP EP23710005.2A patent/EP4499324B1/de active Active
- 2023-03-08 WO PCT/EP2023/055835 patent/WO2023186471A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP4499324B1 (de) | 2026-05-06 |
| WO2023186471A1 (de) | 2023-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2176010B1 (de) | Verfahren zum herstellen eines bandes aus stahl | |
| EP1097764B1 (de) | Verfahren zur Oberflächenbearbeitung eines kontinuierlich gegossenen Stahlproduktes und Einrichtung hierzu | |
| EP0867239B1 (de) | Verfahren und Anlage zum Auswalzen von Warmbreitband aus stranggegossenen Brammen | |
| DE69710945T2 (de) | Verfahren und Vorrichtung zur Herstellung von warmgewalztem Stahlblech | |
| WO2002024355A1 (de) | Verfahren und anlage zum herstellen von bändern und blechen aus stahl | |
| AT501314A1 (de) | Verfahren und vorrichtung zum kontinuierlichen herstellen eines dünnen metallbandes | |
| EP2651578B1 (de) | WALZSTRAßE ZUR RÖHRENSTAHL- UND DÜNNBANDERZEUGUNG | |
| EP3341142B1 (de) | Verfahren zum betreiben einer anlage nach dem csp-konzept | |
| DE3730471A1 (de) | Kompaktwalzwerk und arbeitsverfahren zum walzen von formstahl | |
| EP4499324B1 (de) | Giesswalzanlage und verfahren zu deren betrieb | |
| EP1982134A1 (de) | Rollenherdofen zum aufheizen und/oder temperaturausgleichen von stranggiessprodukten aus stahl oder stahllegierungen und dessen anordnung vor einer warmband-fertigwalzstrasse | |
| DE4234454A1 (de) | Verfahren und Anlage zur Herstellung von warmgewalzten Bändern oder Profilen aus stranggegossenem Vormaterial | |
| EP2516079A2 (de) | Verfahren zum warmwalzen einer bramme und warmwalzwerk | |
| DE102022208817A1 (de) | Gießwalzanlage und Verfahren zu deren Betrieb | |
| WO2011067315A1 (de) | Warmwalzwerk und verfahren zum warmwalzen eines metallbandes oder -blechs | |
| DE69818512T2 (de) | Vorrichtung und verfahren zur herstellung von stahlband | |
| EP2663412B1 (de) | Anlage und verfahren zum erzeugen von warmband | |
| DE4009860C2 (de) | Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband, insbesondere für Edelstähle, aus bandförmig stranggegossenem Vormaterial | |
| WO2015014864A1 (de) | GIEßWALZANLAGE UND VERFAHREN ZUM HERSTELLEN VON BRAMMEN | |
| EP0919296B1 (de) | Nachrüstung von Warmwalzstrassen zum Walzen von dünnen Bändern | |
| DE102011078829A1 (de) | Verfahren zur Herstellung von Magnesiumband | |
| EP2353742A1 (de) | Warmwalzstraße zum Walzen von Warmband, Verfahren zum Betrieb einer Warmwalzstraße zum Walzen von Warmband, Steuer- und/oder Regeleinrichtung | |
| AT523062B1 (de) | Produktionsanlage und Verfahren zum Betrieb solch einer Produktionsanlage | |
| DE19639298A1 (de) | Verfahren und Vorrichtung zur Erzeugung von dünnen Brammen mit direkt anschließendem Walzprozeß/Walzwerk | |
| WO2025186006A1 (de) | GIEßWALZANLAGE UND VERFAHREN |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20241029 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Free format text: CASE NUMBER: APP_12103/2025 Effective date: 20250312 |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20251008 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |