EP3986638A1 - Procédé pour équilibrer un écoulement d'acier liquide dans une lingotière et système de coulée continue d'acier liquide - Google Patents
Procédé pour équilibrer un écoulement d'acier liquide dans une lingotière et système de coulée continue d'acier liquideInfo
- Publication number
- EP3986638A1 EP3986638A1 EP20731891.6A EP20731891A EP3986638A1 EP 3986638 A1 EP3986638 A1 EP 3986638A1 EP 20731891 A EP20731891 A EP 20731891A EP 3986638 A1 EP3986638 A1 EP 3986638A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- flow
- nozzle
- steel
- distributor
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 238000005266 casting Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 239000013307 optical fiber Substances 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 12
- 238000009749 continuous casting Methods 0.000 claims description 8
- 239000012809 cooling fluid Substances 0.000 claims description 4
- 230000001131 transforming effect Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 17
- 229910001338 liquidmetal Inorganic materials 0.000 description 10
- 238000001228 spectrum Methods 0.000 description 6
- 238000005253 cladding Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000005058 metal casting Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 210000002816 gill Anatomy 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B22D11/18—Controlling or regulating processes or operations for pouring
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
- B22D11/182—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by measuring temperature
-
- 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
- B22D2/006—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the temperature of the molten metal
Definitions
- the invention relates to an installation for the continuous casting of metals. More particularly, the invention relates to a method for balancing a flow of liquid steel in an ingot mold. According to another of its aspects, the invention relates to a system for continuously casting liquid steel.
- a continuous metal casting installation for example a continuous steel casting installation, generally comprises an ingot mold into which a liquid metal is poured from a distributor or distributor for its solidification in a suitable form. It may for example be a bottomless ingot mold, in which case the metal cools to form a slab.
- the walls of the ingot mold are contiguous or backed up by cooling devices, for example of the liquid type.
- the ingot mold and the cooling devices are sized according to the flow speed of the metal so that the slab, when it leaves the mold, has a solidified external surface of sufficient thickness to trap the still liquid metal. located at the heart of the slab.
- the distributor is fitted with one or more nozzles below the steel level in the ingot mold to protect the liquid metal as it flows into the ingot mold.
- the nozzle is arranged symmetrically with respect to the mold so that the flow is as homogeneous as possible during continuous casting operations. Indeed, an unbalanced flow in the mold can have negative consequences on the quality of the slab, such as risks of breakthrough, heterogeneity of the cast steel, poor distribution of the lubricating powder, etc.
- An object of the invention is to allow the detection of incidents disturbing the flow of liquid steel and to restore the symmetry of the flow.
- a method for balancing a flow of liquid steel in an ingot mold in which the steel is introduced into the ingot mold from a distributor through a protective nozzle opening below the level d. 'steel in the mold, comprising the following steps:
- steps a) to c) are repeated continuously during the casting operations.
- the method can thus be implemented throughout the period of operation of the continuous casting plant.
- the characteristics of the flow are obtained by an analysis of the thermal characteristics of the steel in the ingot mold.
- the ingot mold temperature being easily measurable in a large number of positions, this contributes to making the process easy to carry out.
- the ingot mold is of the type constituted by an assembly of metal plates backed by cooling devices configured to allow the cooling of the metal plates by the circulation of a cooling fluid, comprising an optical fiber, comprising a plurality of Bragg filters. , extending in a wall of at least one of said plates, the optical fiber extending in a direction not parallel to the casting axis of the mold.
- the method further comprises the following steps:
- the temperature is thus measured thanks to the optical fiber, which is reliable and easy to install in the mold.
- it is possible to use an ingot mold as described in Belgian patent application 2018/5193 or in the Belgian patent application filed simultaneously with the present application.
- the flow adjustment is carried out by operating a relative movement between the nozzle and the mold.
- the relative movement between the nozzle and the mold is effected in a direction parallel to the longitudinal axis of the mold.
- the nozzle is integral with the distributor and the relative movement between the nozzle and the mold is achieved by moving the distributor relative to the mold. For example by operating a slight movement of the distributor trolley.
- the relative movement between the nozzle and the ingot mold is effected by angular displacement of the nozzle along the longitudinal axis of the ingot mold. It is also possible to combine the two movements (linear and angular).
- the distributor is provided with a device for replacing the casting nozzle or for regulating the flow of steel by throttling by means of a plate moved perpendicular to the direction of the flow, it is sufficient to move such a device relative to the mold.
- the flow adjustment is thus achieved by a simple operation to implement.
- a system for continuously casting liquid steel from a distributor to a continuous casting mold comprising:
- a protective nozzle the lower end of which opens below the level of steel in the mold during the casting of the steel, the nozzle being integral with the distributor,
- transceiver designed to send light into the optical fiber and receive light reflected and / or transmitted by the optical fiber
- Adjustment means arranged to receive the control signal and to adjust the flow of steel in the mold as a function of the control signal.
- the adjustment means comprise a distribution trolley.
- the adjustment means are thus formed by simple means.
- FIG. 1 is an overview of a continuous metal casting installation allowing the implementation of a process for balancing a flow of liquid steel in an ingot mold according to the invention
- Figures 2a and 2b are diagrams illustrating the operation of the installation of Figure 1,
- Figure 3 is a sectional view of the mold of the installation of Figure 1,
- FIG. 4 is a perspective view of a plate of the mold of Figure 3
- FIG. 5 is a longitudinal sectional view of an optical fiber contained in the wall of Figure 4,
- FIG. 6 is a diagram explaining the operation of the optical fiber of Figure 5.
- Figure 7 is a view on a larger scale of the installation of Figure 1 illustrating the implementation of the method to balance the flow of liquid steel in the mold.
- FIG. 1 shows an installation for the continuous casting of metals 2. It has a conventional configuration, so that most of its constituent elements will be presented only briefly.
- the installation 2 comprises pockets 4 containing liquid metal that it is desired to cool.
- the pockets 4 are here two in number and are carried by a motorized arm 6.
- This motorized arm 6 is in particular able to move the pockets 4 which are brought full into the casting zone by a transport system (for example an overhead crane. , not shown) from a filling zone where molten metal can be poured therein, for example an oven or a converter (not shown) before bringing them to the position shown in figure 1.
- a transport system for example an overhead crane. , not shown
- the motorized arm 6 After emptying the ladle 4 , the motorized arm 6 also makes it possible to position the empty bag in a position where the transport system can pick it up and bring it to the preparation zone where it will be reconditioned before returning to the filling zone.
- the installation 2 comprises a distributor or distributor basin 8 located below the pockets 4. The latter have an openable bottom allowing the liquid metal to flow into the distributor 8.
- the distributor 8 includes a flow orifice which can be closed by a stopper rod 10 which makes it possible to control the flow of liquid metal.
- the flow opening of the distributor is extended by a protective nozzle 11 (also called submerged inlet pouring tube, SEN) to protect the liquid metal spilled.
- the nozzle 1 1 is integral with the distributor 8.
- the nozzle 11 opens into an upper opening of an ingot mold 12.
- This is a bottomless mold having a casting axis which is vertical.
- the mold 12 will be described in more detail below.
- the installation 2 comprises cooling devices 14 positioned on an external surface of the mold 12. These are liquid-type cooling devices. For this purpose, they include conduits in which a refrigerant fluid, for example water, flows.
- the refrigerant fluid absorbs the heat from the liquid metal in the mold 12 in order to cool and solidify it.
- the metal solidifies in the form of a slab having a solidified outer surface 18 enclosing a liquid core 20.
- the installation 2 comprises a roller guide 16 located downstream of the mold 12.
- the guide 16 is used to guide the slab, an outer surface 18 of which is solidified, out of the mold 12.
- the slab gradually solidifies as it moves in the guide 16. In other words, the further away from the mold 12, the more the solidified outer surface 18 of the slab increases in volume and the more the core. liquid of the slab decreases in volume.
- the mold 12 is shown in more detail in Figure 3. It has here four plates 22 (the fourth not being visible due to the position of the cutting plane).
- the plates 22 are made of copper or a copper alloy, which are materials exhibiting high thermal conductivity and therefore facilitate heat exchange between the cooling devices 14 and the mold 12.
- the plates 22 are arranged so that the mold 12 has a generally rectangular or square cross section. However, provision could be made to arrange the plates so that the mold has a completely different shape of cross section or not. For example, a funnel-shaped top section conventionally used for thin slab casting.
- the invention will be described in more detail on the basis of a mold arrangement as described in the application for Belgian patent 2018/5193, namely with an optical fiber housed in a channel formed in the wall of the mold. It should however be understood that according to another embodiment of the invention, the optical fiber may be housed in a groove formed on the surface of the mold and closed by a tab, as described in the Belgian patent application filed. simultaneously with the present application.
- the plate 22 comprises in its wall at least one channel 24 extending in a direction not parallel to the casting axis of the mold 12. More precisely, the channel 24 has an angle with the casting axis of between 75 °. and 105 °. Here, channel 24 is perpendicular to the casting axis.
- the channels 24 are here four in number.
- a protective cover 26 is installed on the area of the plate 22 where the channels 24 open out to protect them.
- each optical fiber 28 comprises an optical cladding 30 as well as a core 32 surrounded by the optical cladding 30.
- the optical fiber 28 comprises in its core 32 several Bragg filters 34.
- the optical fiber 28 comprises at least ten Bragg filters 10 per meter, preferably at least twenty Bragg filters per meter, preferably at least thirty Bragg filters per meter, and even more so. preferred at least forty Bragg filters per meter.
- Bragg filters 34 are filters which make it possible to reflect light over a range of wavelength centered on a predetermined value, called the reflected wavelength, adjustable by the constructor of the filter. This predetermined value is also a function in particular of the temperature at which the filter is located, so that we can write for each filter:
- echie is the wavelength actually reflected by the filter
- f is a known function
- T is the temperature of the filter
- a 0 is the wavelength reflected by the filter at a predetermined temperature, for example at temperature ambient.
- optical fiber 28 makes it possible to use the optical fiber 28 as a temperature sensor.
- Bragg filters 34 having distinct and chosen values of reflected wavelength A 0 are installed in optical fiber 28, for example shifted one by one by 5 nanometers.
- a light beam exhibiting a polychromatic spectrum 35a, for example white light in the optical fiber 28, then the peaks of wavelengths represented in the spectrum of the reflected beam 35b are determined.
- the measured value ⁇ reflected is compared with the theoretical value of the wavelength reflected at ambient temperature 0 , and the temperature T of the filter in question is calculated by means of the function f.
- the installation of the optical fiber 28 in one of the plates 22 of the mold 12 makes it possible to measure the temperature of this plate, in particular of its wall in contact with the cast metal, in predetermined positions to follow its evolution over time.
- the installation 2 further comprises:
- a transceiver arranged to send light into the optical fiber 28 and receive light reflected and / or transmitted by the optical fiber 28,
- an adjustment system designed to adjust the flow of steel in the mold 12 as a function of a control signal emitted by the processor.
- the transceiver sends light into the optical fiber 28 and the temperature is measured. of the wall of the mold 12 by virtue of the light reflected and / or transmitted by the optical fiber 28.
- the thermal characteristics of the steel present in the mold 12 are analyzed.
- the measurement of these characteristics is compared with a predefined model. It may for example be measurements of these same characteristics previously carried out under normal flow conditions, that is to say when the flow is not disturbed. If the measurement does not deviate from the model by a predetermined distance, the comparison is interpreted to mean that no flow disturbance has occurred. No flow adjustment measure is therefore to be undertaken. These measuring and comparison steps are preferably continuously repeated throughout the flow.
- the comparison is interpreted to mean that at least one disturbance has taken place and therefore the flow must be adjusted. Taking the comparison into account, the processor determines adjustment actions to be taken to balance the flow and then issues a control signal to adjustment means which allow the adjustment actions to be performed.
- the processor detects a measurement which deviates too much from the model, it is possible to provide for the emission of an alarm signal, or even to stop the casting operations.
- the adjustment actions may consist of moving the distributor 8 in a direction parallel to the longitudinal axis of the mold 12 using a distributor carriage 36 of the installation 2. Since the nozzle 1 1 is integral with the distributor 8, this movement allows movement of the nozzle 11 relative to the mold 12. In doing so, symmetry is restored in the flow of the liquid metal.
- the measurement and comparison steps are then carried out again to determine whether the displacement of the nozzle 11 has had the desired effect.
- 35a polychromatic spectrum
- 35b spectrum of the reflected beam
- 36c spectrum of the transmitted beam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE20195406A BE1026740B1 (fr) | 2019-06-21 | 2019-06-21 | Procédé pour équilibrer un écoulement d'acier liquide dans une lingotière et système de coulée continue d'acier liquide |
PCT/EP2020/066604 WO2020254309A1 (fr) | 2019-06-21 | 2020-06-16 | Procédé pour équilibrer un écoulement d'acier liquide dans une lingotière et système de coulée continue d'acier liquide |
Publications (4)
Publication Number | Publication Date |
---|---|
EP3986638A1 true EP3986638A1 (fr) | 2022-04-27 |
EP3986638B1 EP3986638B1 (fr) | 2023-11-22 |
EP3986638C0 EP3986638C0 (fr) | 2023-11-22 |
EP3986638B8 EP3986638B8 (fr) | 2024-01-17 |
Family
ID=67383677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20731891.6A Active EP3986638B8 (fr) | 2019-06-21 | 2020-06-16 | Procédé pour équilibrer un écoulement d'acier liquide dans une lingotière et système de coulée continue d'acier liquide |
Country Status (12)
Country | Link |
---|---|
US (1) | US20220355371A1 (fr) |
EP (1) | EP3986638B8 (fr) |
JP (1) | JP2022537447A (fr) |
KR (1) | KR20220024523A (fr) |
AU (1) | AU2020296236A1 (fr) |
BE (1) | BE1026740B1 (fr) |
BR (1) | BR112021025296A2 (fr) |
CA (1) | CA3144776A1 (fr) |
ES (1) | ES2972170T3 (fr) |
MX (1) | MX2021015683A (fr) |
PL (1) | PL3986638T3 (fr) |
WO (1) | WO2020254309A1 (fr) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000051762A1 (fr) * | 1999-03-02 | 2000-09-08 | Nkk Corporation | Procede et dispositif permettant, en coulee continue, de predire et de reguler la configuration d'ecoulement de l'acier en fusion |
DE102008029742A1 (de) * | 2008-06-25 | 2009-12-31 | Sms Siemag Aktiengesellschaft | Kokille zum Gießen von Metall |
KR100997365B1 (ko) * | 2008-06-26 | 2010-11-29 | 현대제철 주식회사 | 침지노즐 센터링 장치 |
DE102011085932A1 (de) * | 2011-06-07 | 2012-12-13 | Sms Siemag Ag | Verfahren zum Regeln der Höhe des Gießspiegels in einer Kokille einer Stranggießanlage |
KR20130034299A (ko) * | 2011-09-28 | 2013-04-05 | 현대제철 주식회사 | 연속주조용 몰드 단변의 제어장치 및 그 방법 |
WO2017032392A1 (fr) * | 2015-08-21 | 2017-03-02 | Abb Schweiz Ag | Moule de coulée et procédé de mesure de la température d'un moule de coulée |
BE1025314B1 (fr) * | 2018-03-23 | 2019-01-17 | Ebds Engineering Sprl | Lingotière de coulée continue de métaux, système et procédé de détection de percée dans une installation de coulée continue de métaux |
-
2019
- 2019-06-21 BE BE20195406A patent/BE1026740B1/fr active IP Right Grant
-
2020
- 2020-06-16 JP JP2021576222A patent/JP2022537447A/ja active Pending
- 2020-06-16 MX MX2021015683A patent/MX2021015683A/es unknown
- 2020-06-16 PL PL20731891.6T patent/PL3986638T3/pl unknown
- 2020-06-16 KR KR1020227001171A patent/KR20220024523A/ko active Search and Examination
- 2020-06-16 US US17/619,986 patent/US20220355371A1/en active Pending
- 2020-06-16 WO PCT/EP2020/066604 patent/WO2020254309A1/fr active Application Filing
- 2020-06-16 AU AU2020296236A patent/AU2020296236A1/en active Pending
- 2020-06-16 BR BR112021025296A patent/BR112021025296A2/pt unknown
- 2020-06-16 EP EP20731891.6A patent/EP3986638B8/fr active Active
- 2020-06-16 CA CA3144776A patent/CA3144776A1/fr active Pending
- 2020-06-16 ES ES20731891T patent/ES2972170T3/es active Active
Also Published As
Publication number | Publication date |
---|---|
US20220355371A1 (en) | 2022-11-10 |
EP3986638B8 (fr) | 2024-01-17 |
BE1026740B1 (fr) | 2020-05-28 |
CA3144776A1 (fr) | 2020-12-24 |
KR20220024523A (ko) | 2022-03-03 |
BR112021025296A2 (pt) | 2022-02-01 |
AU2020296236A1 (en) | 2022-01-20 |
MX2021015683A (es) | 2022-02-03 |
EP3986638B1 (fr) | 2023-11-22 |
ES2972170T3 (es) | 2024-06-11 |
WO2020254309A1 (fr) | 2020-12-24 |
JP2022537447A (ja) | 2022-08-25 |
PL3986638T3 (pl) | 2024-04-08 |
EP3986638C0 (fr) | 2023-11-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2019180229A2 (fr) | Lingotière de coulée continue de métaux, système et procédé de détection de percée dans une installation de coulée continue de métaux | |
CH615609A5 (fr) | ||
CA2159475C (fr) | Procede et dispositif de regulation du niveau de metal liquide dans une lingotiere de coulee continue des metaux | |
EP3986638B1 (fr) | Procédé pour équilibrer un écoulement d'acier liquide dans une lingotière et système de coulée continue d'acier liquide | |
FR2566297A1 (fr) | Procede de coulee d'un bain metallique | |
BE1026975B1 (fr) | Lingotière de coulée continue de métaux, système de mesure de la température et système et procédé de détection de percée dans une installation de coulée continue de métaux | |
CA3020354C (fr) | Systeme et procede de controle de la coulee d'un produit | |
EP0564316B1 (fr) | Procédé de coulée continue | |
FR2698298A1 (fr) | Procédé d'injection automatisée de gaz dans une installation multicoulée de métaux équipée de lingotières à rehausse. | |
EP0391822B1 (fr) | Procédé et dispositif d'obtention de produits métalliques minces par coulée continue | |
EP1974069B1 (fr) | Tirage symétrique de rubans composites | |
EP0943380A1 (fr) | Installation de coulée en continu d'un produit métallique et procédés de mise en oeuvre d'une telle installation | |
EP0528723B1 (fr) | Procédé de coulée en source à remplissage régulé et moule pour la mise en oeuvre de ce procédé | |
FR2610855A1 (fr) | Procede pour la coulee d'alliages ferreux | |
BE899618A (fr) | Procede de conduite d'une operation de coulee de metal liquide. | |
EP1272298A1 (fr) | Procede et dispositif de controle du niveau de metal liquide dans une machine de coulee continue | |
FR2757430A1 (fr) | Lingotiere a largeur variable pour la coulee continue de produits metalliques | |
LU85883A1 (fr) | Procede de conduite d'une operation de coulee de metal liquide | |
FR2558589A1 (fr) | Procede et appareil de mesure du niveau d'un liquide, tel que l'acier en fusion, recouvert d'une couche surnageante de laitier ou autre | |
LU82210A1 (fr) | Perfectionnements aux procedes et dispositifs de controle de la coulee continue des metaux | |
FR2843056A1 (fr) | Procede de demarrage automatique d'une installation de coulee continu et ensemble pour la mise en oeuvre de ce procede |
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: 20220104 |
|
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 MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20221215 |
|
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: 20230719 |
|
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 |
|
AK | Designated contracting states |
Kind code of ref document: B1 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 MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602020021506 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PK Free format text: RECTIFICATION B8 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
RAP4 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: EBDS ENGINEERING |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PK Free format text: RECTIFICATION B8 |
|
U01 | Request for unitary effect filed |
Effective date: 20231215 |
|
U07 | Unitary effect registered |
Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI Effective date: 20231222 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240322 |
|
REG | Reference to a national code |
Ref country code: SK Ref legal event code: T3 Ref document number: E 43459 Country of ref document: SK |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240322 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231122 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240222 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231122 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2972170 Country of ref document: ES Kind code of ref document: T3 Effective date: 20240611 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20240621 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CZ Payment date: 20240611 Year of fee payment: 5 |
|
U1N | Appointed representative for the unitary patent procedure changed [after the registration of the unitary effect] |
Representative=s name: DEBLED, THIERRY; BE |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SK Payment date: 20240610 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231122 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: RO Payment date: 20240613 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20240523 Year of fee payment: 5 |
|
U20 | Renewal fee paid [unitary effect] |
Year of fee payment: 5 Effective date: 20240628 |