EP3398696B1 - Kühleinrichtung und -verfahren - Google Patents

Kühleinrichtung und -verfahren Download PDF

Info

Publication number
EP3398696B1
EP3398696B1 EP18159076.1A EP18159076A EP3398696B1 EP 3398696 B1 EP3398696 B1 EP 3398696B1 EP 18159076 A EP18159076 A EP 18159076A EP 3398696 B1 EP3398696 B1 EP 3398696B1
Authority
EP
European Patent Office
Prior art keywords
ingot
cooling
spray
plate
ramps
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.)
Active
Application number
EP18159076.1A
Other languages
English (en)
French (fr)
Other versions
EP3398696A1 (de
Inventor
Vincent Duhoux
Bruno Magnin
Daniel BELLOT
José ROCHE
Pierre AUCOUTURIER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Constellium Neuf Brisach SAS
Original Assignee
Constellium Neuf Brisach SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=51610169&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3398696(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Constellium Neuf Brisach SAS filed Critical Constellium Neuf Brisach SAS
Publication of EP3398696A1 publication Critical patent/EP3398696A1/de
Application granted granted Critical
Publication of EP3398696B1 publication Critical patent/EP3398696B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or 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
    • B21B45/004—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
    • B21B45/02—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
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for cooling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B2001/225—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 plates, strips, bands or sheets of indefinite length by hot-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/001—Aluminium or its alloys
    • 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
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/04—Thickness, gauge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/06—Width
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/12—Length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature

Definitions

  • the invention relates to the field of rolling plates or trays made of aluminum alloys.
  • the invention relates to a particularly rapid, homogeneous and reproducible cooling process for the plate between the homogenization and hot rolling operations.
  • DE 198 23 790 A1 discloses a method according to the preamble of claim 1.
  • the invention also relates to the installation or equipment allowing the implementation of said method.
  • the transformation of the aluminum alloy rolling plates resulting from the casting requires, before hot rolling, a metallurgical homogenization heat treatment.
  • This heat treatment is carried out at a temperature close to the solvus of the alloy, higher than the hot rolling temperature.
  • the difference between the homogenization temperature and the hot rolling temperature is between 30 and 150 ° C, depending on the alloys.
  • the plate must therefore be cooled between its exit from the homogenization furnace and its hot rolling. For reasons either of productivity or of metallurgical structure, in particular to avoid certain surface defects on the finished sheet, it is very desirable to be able to cool the plate quickly between its exit from the homogenization furnace and the hot rolling mill. .
  • This desired plate cooling rate is between 150 and 500 ° C / h.
  • the air cooling is particularly slow: the air cooling speed of a 600 mm plate thickness is included between 40 ° C / h in still air or under natural convection, and 100 ° C / h in ventilated air or forced convection.
  • Cooling by means of a liquid or a mist is much faster because the value of the exchange coefficient, known to those skilled in the art under the name HTC (Heat Transfer Coefficient), between a liquid or a mist and the hot surface of the metal plate is clearly greater than the value of this same coefficient between the air and the plate.
  • HTC Heat Transfer Coefficient
  • the liquid chosen alone or in the mist is for example water and, in this case, ideally deionized water.
  • the HTC coefficient is between 2000 and 20,000 W / (m 2 .K) between water and the hot plate while it is between 10 and 30 W / (m 2 .K) between air and hot platter.
  • Thermal heterogeneity is a major handicap in cooling using a liquid or a mist. It poses a problem not only for the following process, that is to say the hot rolling, but it is also potentially harmful for the final quality of the product, namely the aluminum alloy sold in the form of coils or high sheets. mechanical characteristics.
  • the subject of the invention is a process for cooling a rolling plate made of aluminum alloy with typical dimensions of 250 to 800 mm in thickness, 1000 to 2000 mm in width and 2000 to 8000 mm in length according to claim 1.
  • thermal difference is understood to mean the maximum difference between temperatures recorded over the entire volume of the plate, or else DTmax.
  • the cooling is carried out in at least two phases: A first spraying phase during which the plate is cooled in an enclosure comprising ramps of nozzles or nozzles for spraying liquid or cooling mist under pressure, distributed in the upper and lower parts of said cell, so as to spray the two large faces, upper and lower of said plate,
  • this time is about 30 min for a total cooling of the order of 150 ° C from substantially 500 ° C, and a few minutes for a cooling of the order of 30 ° C.
  • the spraying and thermal uniformization phases are repeated, in the case of very thick plates and for an overall average cooling greater than 80 ° C.
  • the coolant including in a mist, is water, and preferably deionized water.
  • the head and the foot of the plate that is typically the 300 to 600 mm at the ends, are less cooled than the rest of the plate, so as to maintain a hot head and foot, a configuration favorable to the plate engagement during reversible hot rolling.
  • the cooling of the head and of the foot can be modulated either by starting or switching off the nozzle ramps or spray nozzles, or by the presence of screens preventing or reducing the spraying by said nozzles or nozzles.
  • the phases of spraying, and no thermal uniformization can be repeated, and the head and the foot of the plate, typically 300 to 600 mm at the ends, cooled differently than the rest of the plate at least in one spray cells.
  • the first spraying pass is carried out with a zero heel, that is to say a continuous watering of the plate as in figure 14 , followed, without a first phase of thermal uniformization, by a second spraying pass with a heel of a couple of ramps as in figure 12 , thus making it possible to significantly reduce the duration of the final uniformization phase necessary for the thermal balancing of the plate.
  • the longitudinal thermal uniformity of the plate is improved by a relative movement of the plate with respect to the sprinkling system: scrolling or back and forth of the plate facing a fixed sprinkling system or vice versa, displacement of the nozzles or nozzles relative to the plate.
  • the plate scrolls horizontally in the spray cell and its scroll speed is greater than or equal to 20 mm / s, ie 1.2 m / min.
  • the transverse thermal uniformity of the plate is ensured by modulating the sprinkling across the width of the plate by switching on / off nozzles or nozzles, or screening said sprinkling.
  • the subject of the invention is also an installation for carrying out the method as above, comprising a spray cell provided with ramps of nozzles or spray nozzles for liquid or pressurized cooling mist arranged in upper parts and bottom of said cell, so as to spray the two large faces, upper and lower of said plate,
  • a uniformization tunnel with calm air coming out of the spray cell in a tunnel with interior walls and the roof in an internally reflective material, allowing thermal uniformization of the plate by diffusion of heat in said plate, the heart by warming the surfaces.
  • the pairs of upper and lower nozzle ramps are placed substantially facing each other, so that the upper and lower spray lengths are substantially equal and facing each other.
  • the spraying length is controlled so as to promote the lateral evacuation of the liquid or mist sprayed on the upper face, by guiding it towards the banks of the plate where it is evacuated in the form of a cascade without touching the small faces of the plate thus allowing a very homogeneous cooling in temperature in the longitudinal and transverse directions of the plate.
  • the liquid alone or contained in the cooling mist it can be recovered, typically in a container located under the installation, recycled and thermally controlled.
  • the entire installation, spray cell and uniformization tunnel is controlled by a thermal model coded on a PLC, the thermal model determining the settings of the installation as a function of the temperature estimated by thermal measurement at the start of the spray cell and depending on the target outlet temperature, in general the temperature at the start of hot rolling.
  • the Figure 19 illustrates the thermal field of a 600 mm thick AA6016 type alloy plate cooled by about 50 ° C in one pass in the sprinkler machine set with a sprinkler head of a single boom at the ends of the table, in accordance with figure 13 . This adjustment results in a very uniform thermal field with slightly hotter ends, which is favorable for rolling.
  • the invention essentially consists of a cooling process using a cooling liquid or mist for a plate or a rolling plate of aluminum alloy, from 30 to 150 ° C in a few minutes, that is to say at an average cooling rate of between 150 and 500 ° C / hour.
  • the plate is cooled in an enclosure comprising nozzles or nozzles for spraying liquid or mist cooling under pressure, typically water and preferably deionized.
  • the nozzles or nozzles are distributed in the upper and lower parts of said cell, so as to spray the two large faces, upper and lower, of the plate.
  • the option of a step-by-step process makes it possible to limit the risks of hot spots linked to the contacts between the plate and its support, generally made up of cylindrical or conical rollers.
  • the average cooling of the tray ( ⁇ Tmoy tray) is controlled by the sprinkling time seen by each section of the tray.
  • the plate is thermally very heterogeneous in its thickness, due to a high Biot number value.
  • the spraying phase is therefore designed to limit thermal heterogeneities in the three directions of the plate.
  • the invention makes it possible in particular to control the thermal profiles in the transverse direction and in the long direction of the plate, which is very appreciable since possible thermal gradients along these two large dimensions would be difficult to absorb in a short time.
  • the thermal uniformization phase of the plate follows: After sprinkling, the plate is kept for a few minutes in a configuration of low heat exchange with its environment. These thermal conditions allow the thermal uniformization of the tray, in a few minutes for cooling of less than 30 ° C and in approximately 30 minutes maximum for cooling of 150 ° C. This phase is essential to achieve the required thermal uniformity specifications. It makes it possible to achieve a thermal difference DTmax of less than 40 ° C on a large plate.
  • the invention can also be adapted to high absolute values of cooling.
  • the average cooling of the desired plate is typically greater than 80 ° C, it is possible to cycle several times all of the “spraying” and “uniformization” phases, reducing at each “spraying-uniformization” cycle the average temperature of a very thick tray.
  • the method thus described ensures rapid and controlled cooling of a thick plate, in particular a rolling plate, made of aluminum alloy. It is also robust and avoids the known risks of local over-cooling.
  • the machine, or cooling installation itself consists of at least one spray cell, typically horizontal to the parade, on the one hand and, on the other hand, of at least one thermal uniformization tunnel.
  • the spray cell allows the implementation of phase 1 of the process described above.
  • the spray cell is made up of ramps fitted with nozzles or nozzles for pressurized distribution of the liquid or cooling mist.
  • the spraying machine can advantageously, for reasons of economy in particular, operate in a closed cycle, for example with a collecting basin placed under the spraying machine.
  • the travel speed of the plate is greater than or equal to 20 mm / s, ie 1.2 m / min.
  • the tray On leaving the spray cell, the tray is transferred, for example using automatic trolleys, into one or more uniformization tunnel (s).
  • the objective of the tunnel is to reduce as much as possible the heat transfers between the plate and the air, which is favorable to a better thermal uniformization of the plate. This thermal uniformization takes place by diffusion of heat in the plate, the core heating the surfaces of the plate.
  • the standardization tunnel consists of vertical walls and a roof in an ideally reflective material on the inside of the tunnel.
  • the machine or cooling installation made up of the spray cell and the standardization tunnel is controlled by a thermal model coded on the machine's PLC.
  • the thermal model determines the machine settings as a function of the temperature at the start of the spray cell, or inlet temperature, and as a function of the target outlet temperature, in general the rolling temperature.
  • Example 1 Uniform cooling of 40 ° C of an alloy plate of the AA3104 type.
  • the figure 5 illustrates the cooling of 40 ° C of an alloy plate of the AA3104 type according to the designations defined by the “Aluminum Association” in the “Registration Record Series” that it publishes regularly.
  • the thickness of the top is 600 mm, its width is 1850 mm and its length is 4100 mm.
  • the tray comes out of the homogenization oven at 600 ° C.
  • the plate cooling process is the one-pass process, described in figure 1 .
  • the surface spraying flow rate is 500 1 / (min.m 2 ) on the two large sides of the plate.
  • the spray heel is set to ramp torque, as described in figure 12 .
  • the tray is dry and transferred in 30 s to a uniformization tunnel for a period determined by the thermal model encoded in the automaton, here 300 s, ie 5 minutes.
  • the plate is transferred to the hot rolling mill, with a thermal uniformity better than 40 ° C on the complete plate.
  • the surface temperature of the tray drops to around 320 ° C, while the core of the tray remains almost isothermal during the spraying phase. Then, by diffusion of heat between the heart and the surface, the heart gives up heat to the surface, the plate becomes thermally uniform.
  • the thermal difference in the plate (DTmax) is maximum at the end of the spraying phase, its value is approximately 280 ° C for this configuration. It is rapidly reduced as soon as the spraying of the tray ceases: in 6 minutes of waiting (transfer then standardization in the tunnel), the thermal difference DTmax is reduced to less than 40 ° C.
  • Example 2 Uniform cooling of 135 ° C of an alloy plate of the AA6016 type.
  • the figure 6 illustrates the 135 ° C cooling of an AA6016 type alloy pan.
  • the thickness of the top is 600 mm, its width is 1850 mm and its length is 4100 mm.
  • the tray comes out of the homogenization oven at 530 ° C.
  • the platen cooling process is the two-pass process, described in figure 2 .
  • each point of the tray outside the ends (head and foot) undergoes watering for 51 seconds.
  • the surface spraying flow rate is 800 1 / (min.m 2 ) on the two large sides of the plate.
  • the watering heel is set to a ramp, as described in figure 13 .
  • the tray is transferred in 60 s to the second sprinkler cell without passing, in this example, through the optional intermediate standardization tunnel.
  • the plate then undergoes a second watering, identical to the first: each point of the plate excluding the ends is subjected to watering for 51 seconds, at a surface flow rate of 800 1 / (min.m 2 ).
  • the tray On leaving the second spray cell, the tray is transferred to the uniformization tunnel in 30 seconds. The plateau waits several minutes in the standardization tunnel. At the end, the plate is transferred to the hot rolling mill, with a thermal uniformity better than 40 ° C on the complete plate.
  • the surface temperature of the tray drops to about 60 ° C.
  • the heart of the tray remains almost isothermal during the first spraying phase and then cools down during the second spraying phase. Then, by diffusion of heat between the heart and the surface, the heart gives up heat to the surface, the plate becomes thermally uniform.
  • the thermal difference in the plate (DTmax) is maximum at the end of each of the spraying phases, its value is approximately 470 ° C for this configuration. It is rapidly reduced as soon as the spraying of the tray ceases: the thermal difference DTmax of the tray is 55 ° C after 13 minutes of waiting in the tunnel and becomes less than 40 ° C after 23 minutes spent in the tunnel.
  • Example 3 Uniform cooling of 125 ° C of an alloy plate of the AA6016 type.
  • the thickness of the top is 600 mm, its width is 1850 mm and its length is 4100 mm.
  • the tray comes out of the homogenization oven at 530 ° C.
  • the platen cooling process is the two-pass process, described in figure 2 .
  • each point of the tray is watered for 51 seconds.
  • the surface spraying flow rate is 500 1 / (min.m 2 ) on the two large sides of the plate.
  • the watering stub is zero, as described in figure 14 .
  • the tray is therefore sprayed entirely in the same way, which generates a longitudinal thermal profile with cold ends.
  • the tray is transferred in 60 s to the second sprinkler cell without passing, in this example, through the optional intermediate standardization tunnel.
  • the tray then undergoes a second watering, different from the first.
  • the plate, but this time outside the ends undergoes a second watering of 51 seconds, at a surface flow rate of 500 1 / (min.m 2 ).
  • the sprinkler stub is a couple of ramps, as described figure 12 . This adjustment tends to straighten the cold-ended thermal profile, thereby generating an almost flat longitudinal thermal profile exiting the second spray cell.
  • the tray is transferred to the standardization tunnel in 30 seconds. The plateau waits only 10 minutes in the standardization tunnel.
  • the plate is transferred to the hot rolling mill, with a thermal uniformity better than 40 ° C on the complete plate.
  • Example 3 shows that the judicious choice of the watering heels makes it possible to significantly reduce the duration of uniformization after sprinkling.
  • the choice of beads may differ from pass to pass.
  • the heel chosen in the first pass is better than the heel chosen in the second pass.
  • a first pass with a zero heel (continuous watering of the plate) followed by a second pass with a heel of a couple of ramps makes it possible to significantly reduce the uniformization time necessary for thermal balancing of the plate.

Claims (17)

  1. Verfahren zur Abkühlung einer Walzplatte aus Aluminiumlegierung mit typischen Abmessungen von 250 bis 800 mm Dicke, 1000 bis 2000 mm Breite und 2000 bis 8000 mm Länge nach der Wärmebehandlung zur metallurgischen Homogenisierung der Platte bei einer Temperatur typischerweise im Bereich von 450 bis 600°C je nach Legierung und vor ihrem Warmwalzen, wobei die Abkühlung mit einem Wert von 30 bis 150°C erfolgt, dadurch gekennzeichnet, dass die Abkühlung mit einer Geschwindigkeit von 150 bis 500°C/h durchgeführt wird, mit einem Temperaturunterschied von weniger als 40°C über die gesamte abgekühlte Platte ausgehend von ihrer Homogenisierungstemperatur, und wobei die Gleichmäßigkeit der Abkühlung in der Breite der Platte kontrolliert wird über
    a) die Steuerung der Sprühbreite in Querrichtung der Platte, durch die Anzahl der zugeschalteten Düsen oder den Einsatz von Schutzschirmen,
    b) eine Sprühmethode, die ein seitliches Abfließen der an der Oberseite aufgesprühten Kühlflüssigkeit begünstigt.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Abkühlung in mindestens zwei Phasen erfolgt:
    Einer ersten Sprühphase, in der die Platte in einem Behälter abgekühlt wird, welcher mit Sprühdüsen oder Sprühstrahlrohren für Kühlflüssigkeit oder Kühlsprühnebel unter Druck bestückte Sprühbalken aufweist, die im oberen und unteren Teil der Zelle so verteilt sind, dass die beiden großen Flächen der Platte - die obere und die untere Fläche - besprüht werden,
    Einer weiteren Phase zur thermischen Uniformisierung bei ruhiger Luft in einem Tunnel mit reflektierenden Innenwänden für eine Dauer von 2 bis 30 Minuten je nach Plattenformat und Kühlwert.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Uniformisierungsphase bei Abkühlungen um weniger als 30°C einige Minuten und bei Abkühlungen um 150°C maximal 30 Minuten dauert.
  4. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Sprühphase und die thermische Uniformisierungsphase bei sehr dicken Platten und bei einer Gesamtdurchschnittsabkühlung um mehr als 80°C wiederholt werden.
  5. Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Kühlflüssigkeit, einschließlich in einem Sprühnebel, vorzugsweise wenig mineralisiertes Wasser und bevorzugt entionisiertes Wasser ist.
  6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Kopf und der Fuß der Platte, d.h. typischerweise 300 bis 600 mm an den Enden, weniger abgekühlt werden als der Rest der Platte, um den Kopf und den Fuß warm zu halten, wobei diese Konfiguration für das Einführen der Platte bei reversiblem Warmwalzen günstig ist.
  7. Verfahren nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass die Abkühlung von Kopf und Fuß durch Einschalten oder Ausschalten der Sprühdüsen- oder Sprühstrahlrohrbalken moduliert wird.
  8. Verfahren nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass die Abkühlung von Kopf und Fuß durch das Vorhandensein von Schutzschirmen moduliert wird.
  9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, wobei die Kühlflüssigkeit zu den Kanten der Platte geführt wird und kaskadenförmig abfließt, ohne dabei die kleinen Flächen der Platte zu berühren.
  10. Verfahren nach Anspruch 9, wobei die oberen Düsenbalken gepaart in Laufrichtung der Platte angeordnet sind und wobei die oberen Balken in einem Paar so geneigt sind, dass
    - die Strahlen der beiden gepaarten oberen Düsenbalken gegeneinander gerichtet sind,
    - die Strahlen einen normalen Randabschluss zur oberen Fläche der Platte aufweisen,
    - die Überlappung der Strahlen 1/3 bis 2/3 und vorzugsweise etwa die Hälfte der Breite jedes Strahls beträgt,
    - die Umhüllende der beiden so ausgebildeten Strahlen ein M-förmiges Profil darstellt.
  11. Verfahren nach irgendeinem der Ansprüche 2 bis 10, wobei der Beginn und das Ende des Sprühvorgangs durch Auslösen der Sprühbalken an der gewünschten Stelle auf der Platte oder durch den Einsatz von Schutzschirmen gesteuert werden.
  12. Verfahren nach Anspruch 11, wobei der Kopf und der Fuß der Platte zu Beginn und am Ende des Sprühvorgangs nicht besprüht werden.
  13. Anlage zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass sie umfasst:
    Eine Sprühzelle, welche mit Sprühdüsen oder Sprühstrahlrohren für Kühlflüssigkeit oder Kühlsprühnebel unter Druck bestückten Sprühbalken ausgerüstet ist, die im oberen und unteren Teil der Zelle so angeordnet sind, dass die beiden großen Flächen der Platte - die obere und die untere Fläche - besprüht werden.
    Einen Tunnel zur thermischen Uniformisierung bei ruhiger Luft am Ausgang der Sprühzelle, in einem Tunnel mit Innenwänden und einem Dach aus innenseitig reflektierendem Material, der eine thermische Uniformisierung der Platte durch Verteilung der Wärme in dieser Platte, im Kern durch Erwärmen der Flächen gestattet.
  14. Anlage nach Anspruch 13, dadurch gekennzeichnet, dass:
    Die Kühlflüssigkeits- oder Kühlnebeldüsen der Sprühzelle Vollkegelstrahlen mit einem Winkel zwischen 45 und 60° erzeugen.
    Die Achsen der unteren Düsen normalerweise auf die untere Fläche ausgerichtet sind.
    Die oberen Düsenbalken in Laufrichtung der Platte gepaart sind. Im jeweils gleichen Paar sind die oberen Balken so geneigt, dass
    - die Strahlen der beiden gepaarten Düsenbalken gegeneinander gerichtet sind,
    - die Strahlen einen normalen Randabschluss zur oberen Fläche der Platte aufweisen,
    - die Überlappung der Strahlen der beiden gepaarten Balken 1/3 bis 2/3 und vorzugsweise etwa die Hälfte der Breite jedes Strahls beträgt,
    - die Umhüllende der beiden so ausgebildeten Strahlen ein M-förmiges Profil darstellt.
    Die oberen und unteren Düsenbalkenpaare im Wesentlichen gegenüberliegend angeordnet sind, so dass die oberen und unteren Sprühlängen im Wesentlichen gleich sind und sich gegenüberstehen.
  15. Anlage nach einem der Ansprüche 13 oder 14, dadurch gekennzeichnet, dass die Kühlflüssigkeit nach dem Besprühen typischerweise in einem unter der Anlage angeordneten Behälter gesammelt, recycelt und thermisch kontrolliert wird.
  16. Einsatz der Anlage nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, dass die gesamte Anlage - Sprühzelle und Uniformisierungstunnel - durch ein automatenkodiertes thermisches Modell gesteuert wird, wobei das thermische Modell die Einstellungen der Anlage in Abhängigkeit von der durch thermische Messung am Eingang der Sprühzelle erfassten Temperatur und in Abhängigkeit von der Zielausgangstemperatur, in der Regel der Temperatur zu Beginn des Warmwalzens, bestimmt.
  17. Einsatz der Anlage nach Anspruch 16, dadurch gekennzeichnet, dass er die folgenden Schritte umfasst:
    - Zentrierung der Platte am Eingang der Anlage,
    - Messung der Temperatur der oberen Fläche der Platte,
    - Berechnung durch den Automaten, mittels des thermischen Modells, der Einstellungen der Sprühzelle in Abhängigkeit von der Eingangstemperatur und der Zielausgangstemperatur, d.h. der Zielabkühlung der Platte, einschließlich der Bestimmung der Anzahl der eingeschalteten Sprühbalken, der Anzahl der kantenseitig eingeschalteten Düsen, der Laufgeschwindigkeit der Platte in der Sprühzelle, der Start- und Stoppvorgänge der Sprühbalken und der Verweilzeit im Uniformisierungstunnel,
    - Durchlauf der Platte in der Sprühzelle, oberes und unteres Besprühen nach den Berechnungen des Automaten,
    - Transport der Platte von der Sprühzelle zum Uniformisierungstunnel,
    - Verbleib der Platte im Uniformisierungstunnel für eine vom Automaten bestimmte Dauer.
EP18159076.1A 2014-07-23 2015-07-10 Kühleinrichtung und -verfahren Active EP3398696B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1401679A FR3024058B1 (fr) 2014-07-23 2014-07-23 Procede et equipement de refroidissement
PCT/FR2015/051915 WO2016012691A1 (fr) 2014-07-23 2015-07-10 Procédé et équipement de refroidissement
EP15753101.3A EP3171996B1 (de) 2014-07-23 2015-07-10 Kühleinrichtung und -verfahren

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
PCT/FR2015/051915 Previously-Filed-Application WO2016012691A1 (fr) 2014-07-23 2015-07-10 Procédé et équipement de refroidissement
EP15753101.3A Division EP3171996B1 (de) 2014-07-23 2015-07-10 Kühleinrichtung und -verfahren
EP15753101.3A Division-Into EP3171996B1 (de) 2014-07-23 2015-07-10 Kühleinrichtung und -verfahren

Publications (2)

Publication Number Publication Date
EP3398696A1 EP3398696A1 (de) 2018-11-07
EP3398696B1 true EP3398696B1 (de) 2021-05-12

Family

ID=51610169

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18159076.1A Active EP3398696B1 (de) 2014-07-23 2015-07-10 Kühleinrichtung und -verfahren
EP15753101.3A Active EP3171996B1 (de) 2014-07-23 2015-07-10 Kühleinrichtung und -verfahren

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15753101.3A Active EP3171996B1 (de) 2014-07-23 2015-07-10 Kühleinrichtung und -verfahren

Country Status (14)

Country Link
US (2) US10130980B2 (de)
EP (2) EP3398696B1 (de)
JP (1) JP6585155B2 (de)
KR (1) KR102336948B1 (de)
CN (1) CN106661648B (de)
BR (1) BR112017000205B1 (de)
CA (1) CA2954711C (de)
DE (1) DE15753101T1 (de)
FR (1) FR3024058B1 (de)
MX (1) MX2017000483A (de)
RU (1) RU2676272C2 (de)
SA (1) SA517380746B1 (de)
TW (1) TWI593476B (de)
WO (1) WO2016012691A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6208389B1 (ja) * 2016-07-14 2017-10-04 株式会社Uacj 曲げ加工性及び耐リジング性に優れたアルミニウム合金からなる成形加工用アルミニウム合金圧延材の製造方法
EP3363552B1 (de) 2016-10-19 2022-07-13 Nippon Steel Corporation Verfahren und vorrichtung zum kühlen von warmgewalztem stahlblech
CN108237182A (zh) * 2016-12-27 2018-07-03 天津市升发科技股份有限公司 一种铝型材冷却装置
DE102017127470A1 (de) 2017-11-21 2019-05-23 Sms Group Gmbh Kühlbalken und Kühlprozess mit variabler Abkühlrate für Stahlbleche
CN108225031A (zh) * 2017-12-30 2018-06-29 苏州博能炉窑科技有限公司 一种大型均热炉的汽化冷却设备
FR3076837B1 (fr) 2018-01-16 2020-01-03 Constellium Neuf-Brisach Procede de fabrication de toles minces en alliage d'aluminium 6xxx a haute qualite de surface
EP3743536B1 (de) 2018-05-15 2024-02-28 Novelis, Inc. Aluminiumlegierungsprodukte im f- und w-zustand und verfahren zur herstellung davon
EP3755820A1 (de) * 2018-06-13 2020-12-30 Novelis, Inc. Systeme und verfahren zum abschrecken eines metallbandes nach dem walzen
EP3825019B1 (de) * 2018-09-19 2023-06-14 Nippon Steel Corporation Kühlvorrichtung für heissgewalztes stahlblech und kühlverfahren von heissgewalztem stahlblech
EP3666915A1 (de) 2018-12-11 2020-06-17 Constellium Neuf Brisach Verfahren zur herstellung von aluminium magnesium silicium legierungen mit guter oberflächequalität
EP3808466A1 (de) * 2019-10-16 2021-04-21 Primetals Technologies Germany GmbH Kühleinrichtung mit kühlmittelstrahlen mit hohlem querschnitt
EP3842561B1 (de) 2019-12-23 2022-08-17 Novelis Koblenz GmbH Verfahren zur herstellung eines walzprodukts aus aluminiumlegierung
JP2023528070A (ja) 2020-06-04 2023-07-03 コンステリウム ヌフ－ブリザック リバース熱間圧延機上での冷却方法および設備
FR3112297B1 (fr) 2020-07-07 2024-02-09 Constellium Neuf Brisach Procédé et équipement de refroidissement sur un Laminoir réversible à chaud
FR3124196B1 (fr) 2021-06-17 2023-09-22 Constellium Neuf Brisach Bande en alliage 6xxx et procédé de fabrication
CN113432439B (zh) * 2021-07-29 2022-09-06 东北大学 一种铝电解槽停止运作后的冷却方法
FR3129408A1 (fr) 2021-11-25 2023-05-26 Constellium Muscle Shoals Llc Bande en alliage 6xxx et procédé de fabrication
FR3134119A1 (fr) 2022-04-02 2023-10-06 Constellium Neuf-Brisach Tôle en alliage 6xxx de recyclage et procédé de fabrication
CN116042969A (zh) * 2022-12-29 2023-05-02 东北轻合金有限责任公司 一种用于铝合金铸锭的冷却装置及其使用方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142954A (en) * 1977-05-19 1978-12-13 Kobe Steel Ltd Hot rolling method for slab of aluminum alloy
JPS60243226A (ja) * 1984-05-15 1985-12-03 Kawasaki Steel Corp 熱間圧延材の材質制御方法および装置
JPH0787928B2 (ja) * 1987-07-03 1995-09-27 古河電気工業株式会社 アルミニウム箔地の製造方法
ZA908728B (en) * 1989-11-23 1991-08-28 Alusuisse Lonza Services Ag Cooling of cast billets
US6159312A (en) * 1997-12-19 2000-12-12 Exxonmobil Upstream Research Company Ultra-high strength triple phase steels with excellent cryogenic temperature toughness
DE19823790A1 (de) * 1998-05-28 1999-12-02 Vaw Ver Aluminium Werke Ag Lithoband, Druckplattenträger und Verfahren zur Herstellung eines Lithobandes, eines Druckplattenträgers oder einer Offset-Druckplatte
CA2712356C (en) * 2001-03-28 2012-02-21 Sumitomo Light Metal Industries, Ltd. Aluminum alloy sheet with excellent formability and paint bake hardenability and method for production thereof
JP4200082B2 (ja) * 2003-11-18 2008-12-24 古河スカイ株式会社 成形加工用アルミニウム合金板およびその製造方法
CN100437076C (zh) 2005-08-24 2008-11-26 东北大学 一种在金属板带试样热处理试验中消除温度梯度的方法
FI20070622L (fi) 2007-08-17 2009-04-15 Outokumpu Oy Menetelmä ja laitteisto tasaisuuden kontrolloimiseksi ruostumatonta terästä olevan nauhan jäähdytyksessä
EP2028290A1 (de) * 2007-08-21 2009-02-25 ArcelorMittal France Verfahren und Vorrichtung zur sekundären Entzunderung der metallischen bandförmigen Behandlungsgut mit Wassersprühen unter niedrigen Druck
EP2656932A1 (de) * 2012-04-26 2013-10-30 Siemens Aktiengesellschaft Thermomechanisches Walzen einer Aluminiumplatte
CN202786334U (zh) * 2012-09-10 2013-03-13 苏州明特威机械设备有限公司 淬火冷却装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
BR112017000205B1 (pt) 2023-03-14
CN106661648A (zh) 2017-05-10
EP3398696A1 (de) 2018-11-07
RU2017105464A (ru) 2018-08-27
KR102336948B1 (ko) 2021-12-09
RU2017105464A3 (de) 2018-11-29
FR3024058A1 (fr) 2016-01-29
CA2954711C (fr) 2023-04-04
US20170189949A1 (en) 2017-07-06
JP6585155B2 (ja) 2019-10-02
BR112017000205A2 (pt) 2017-10-31
RU2676272C2 (ru) 2018-12-27
FR3024058B1 (fr) 2016-07-15
TWI593476B (zh) 2017-08-01
CA2954711A1 (fr) 2016-01-28
WO2016012691A1 (fr) 2016-01-28
EP3171996A1 (de) 2017-05-31
CN106661648B (zh) 2020-01-07
US10130980B2 (en) 2018-11-20
SA517380746B1 (ar) 2021-04-15
KR20170039166A (ko) 2017-04-10
DE15753101T1 (de) 2017-07-27
MX2017000483A (es) 2017-07-28
JP2017521260A (ja) 2017-08-03
US20180236514A1 (en) 2018-08-23
EP3171996B1 (de) 2018-04-11
TW201622843A (zh) 2016-07-01

Similar Documents

Publication Publication Date Title
EP3398696B1 (de) Kühleinrichtung und -verfahren
WO2014083292A1 (fr) Procédé de fusion de poudre avec chauffage de la zone adjacente au bain
EP0092477B1 (de) Verfahren und Vorrichtung zur Herstellung von Hohlblöcken aus Stahl
EP2802427B1 (de) Doppeldüsen-kühlvorrichtung für eine semikontinuierliche vertikale gussform
EP0620061B1 (de) Vorrichtung zum schnellen Wechseln und Halten einer Seitenwand einer Doppelrollenstranggiessvorrichtung beim Giessen eines Metallproduktes
FR2461741A1 (fr) Procede d'extinction d'une matiere en vrac chauffee, notamment de coke, et appareil pour sa mise en oeuvre
FR2833871A1 (fr) Procede et installation de fabrication de bandes metalliques a partir de bandes coulees directement a partir de metal liquide
WO2005054524A1 (fr) Procede et dispositif de refroidissement d'une bande d'acier
FR2500849A1 (fr) Dispositif de refroidissement rapide de tubes metalliques
EP1062065B1 (de) Verfahren und vorrichtung zum einstellen der dicke eines zwischen wandernden kokillen stranggegossenen dünnen metallbandes
EP0407323A1 (de) Verfahren und Vorrichtung zum Stranggiessen mit Doppelrollen von dünnen metallischen Produkten, geeignet zum Kaltwalzen
EP0709151B1 (de) Gussformoberfläche für eine Metallstranggiesskokille mit beweglichen Wänden
BE738234A (de)
LU87677A1 (fr) Dispositif pour solidifier du laitier metallurgique en fusion
WO1990007999A1 (fr) Entretoise arriere d'un moule de coulee sous pression de produits plats metalliques tels que des brames
BE1016113A3 (fr) Procede pour le refroidissement secondaire d'une brame coulee en continu et dispositif pour sa mise en oeuvre.
BE1018999A5 (fr) Procede et dispositif pour la fabrication d'une cible de pulverisation cathodique magnetron.
BE850801A (fr) Procede et dispositif de refroidissement d'elements continus
FR2618704A3 (fr) Procede et dispositif d'alimentation d'une lingotiere de coulee continue de produits minces
WO2002072893A1 (fr) Procede de rechauffage de brames et installation de mise en oeuvre
BE351423A (de)
FR2994870A1 (fr) Procede de coulee ameliore
SE184860C1 (de)

Legal Events

Date Code Title Description
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: THE APPLICATION HAS BEEN PUBLISHED

AC Divisional application: reference to earlier application

Ref document number: 3171996

Country of ref document: EP

Kind code of ref document: P

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

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: 20190502

RBV Designated contracting states (corrected)

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

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: 20191126

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: 20201207

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

AC Divisional application: reference to earlier application

Ref document number: 3171996

Country of ref document: EP

Kind code of ref document: P

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: 602015069351

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1391835

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210615

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

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: 20210512

Ref country code: FI

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: 20210512

Ref country code: BG

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: 20210812

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: 20210512

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20210721

Year of fee payment: 7

Ref country code: AT

Payment date: 20210621

Year of fee payment: 7

Ref country code: FR

Payment date: 20210726

Year of fee payment: 7

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: 20210912

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: 20210813

Ref country code: PT

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: 20210913

Ref country code: PL

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: 20210512

Ref country code: LV

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: 20210512

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: 20210812

Ref country code: SE

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: 20210512

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: 20210512

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20210727

Year of fee payment: 7

Ref country code: CH

Payment date: 20210804

Year of fee payment: 7

Ref country code: DE

Payment date: 20210728

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

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: 20210512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

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: 20210512

Ref country code: EE

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: 20210512

Ref country code: SK

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: 20210512

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: 20210512

Ref country code: CZ

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: 20210512

Ref country code: DK

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: 20210512

Ref country code: RO

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: 20210512

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015069351

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

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: 20210512

26N No opposition filed

Effective date: 20220215

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210812

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: 20210912

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210710

Ref country code: AL

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: 20210512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210710

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210812

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602015069351

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: UEP

Ref document number: 1391835

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210512

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1391835

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220710

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230201

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

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: 20210512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220710

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150710