Classifications

• • 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
  • B21B1/463—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 continuous process, i.e. the cast not being cut before rolling
• • 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
  • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
  • B21B15/0007—Cutting or shearing the product
  • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B2201/00—Special rolling modes
  • B21B2201/08—Batch rolling
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B2201/00—Special rolling modes
  • B21B2201/10—Endless rolling
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B2275/00—Mill drive parameters
  • B21B2275/02—Speed
  • B21B2275/06—Product speed
• • 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
  • B21B45/008—Heat shields
• • 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
• • 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
• • 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 method for operating a casting and rolling plant and to a casting and rolling plant.
• This operating mode is commonly referred to as batch operation.
• the disadvantage of this operating mode is that it is associated with greater mechanical stress on the components of the casting-rolling plant.
• this method allows a rolling speed to be decoupled from the material flow speed specified by the casting device. This allows high exit speeds of a finished rolled product to be achieved.
• rolled products with higher final thickness and/or increased strength can be coiled with low risk.
• the object of the present invention is to optimize the energy efficiency of a casting-rolling plant as a function of the final thickness and/or strength of the rolled product.
• the object of the present invention is to provide the kinetic energy required for coiling in the form of a sufficient exit speed of a finished rolled product.
• the method according to the invention for operating a casting-rolling mill is particularly advantageous for a casting-rolling mill that has a hot rolling mill.
• a continuous strand is produced by casting.
• This continuous strand is fed to a first rolling mill group.
• This first rolling mill group is preferably a roughing mill group, which is often referred to as a "high-reduction mill” (HRM).
• HRM high-reduction mill
• a section is severed from said continuous strand after passing through the first rolling mill group.
• said section is severed by means of a cutting device, which is particularly preferably designed as a pendulum shear.
• the section severed from the continuous strand is then fed to another rolling mill group for processing.
• the next rolling mill group is preferably a finishing mill group.
• This typically represents the last section of the casting-rolling mill before coiling. In English, this is often referred to as a “finishing mill” (FM).
• FM finishing mill
• the method according to the invention for operating the casting-rolling plant provides that the section separated from the endless strand is accelerated between the first rolling stand group and the further rolling stand group.
• acceleration should be understood as increasing the speed of the section separated from the endless strand between the first rolling stand group and the further rolling stand group.
• the separation of a section from the endless strand after the first rolling stand group makes it possible to combine the advantages of a continuous casting and rolling plant with the advantages of a continuous casting and rolling plant in batch operation.
• continuous operation can be used to avoid pass-through joints and achieve a greater reduction in the thickness of the rolled product, while still meeting specified gripping conditions.
• it can be used to decouple the throughput speed of the severed section from the speed determined by the material flow originating from a casting device.
• the disadvantages of continuous operation which arise with increasing final thicknesses or high strengths of the rolled product, can be minimized or even overcome by accelerating the severed section between the first roll stand group and the subsequent roll stand group.
• a temperature loss due to a low throughput speed or scale formation can be counteracted.
• a microstructural transformation that leads to a structure that deviates from the target structure can be prevented in this way.
• this can counteract a premature microstructural transformation from an austenite structure to an austenite-ferrite structure before the rolled product reaches the cooling section.
• the acceleration of the section severed from the continuous strand ensures that a finished rolled product has sufficient kinetic energy for coiling upon exiting a finishing stand group. This allows rolled products with a standard strength, for example, with a thickness of 10 mm or more, to be manufactured and coiled safely and energy-efficiently.
• the section severed from the endless strip is accelerated before it reaches the further rolling stand group.
• said section is accelerated before it reaches a cleaning device upstream of the further rolling stand group.
• the cleaning device is preferably a descaling device.
• a rolling stand group or the cleaning device is reached as soon as a head portion of the severed section enters this rolling stand group or this cleaning device. This makes it possible to minimize temperature losses caused by operation of the cleaning device.
• a section severed from the endless strip can be accelerated in a controlled manner before entering a further rolling stand group or the cleaning device. The severed section can therefore be reliably and precisely accelerated to a required entry speed before entering this rolling stand group.
• an exit speed from the further rolling stand group can be easily adapted to a final thickness and a minimum kinetic energy required for coiling. The energy requirements of the casting and rolling plant can thus be optimized.
• a further advantageous development provides that the said section is separated from the endless strand before the endless strand reaches the next rolling stand group.
• the said section is severed from the endless strand before the endless strand reaches a cleaning device upstream of the further rolling stand group.
• the fact that the endless strand reaches the further rolling stand group or the cleaning device should be understood to mean that a head section of the endless strand enters the rolling stand group or the cleaning device. Separation between the first and the further rolling stand group makes it possible to prevent bulging at a foot or head section of the severed section upon exiting the first rolling stand group. This can reduce malfunctions and interruptions in the operation of the casting and rolling plant. The casting and rolling plant can therefore be operated reliably and efficiently. Furthermore, the quality of rolled products to be manufactured can be improved.
• a constant speed of a portion of said section entering this rolling stand group is maintained. Acceleration by the additional rolling stand group can be dispensed with. This has a positive effect on product quality. Furthermore, deceleration of the severed section can be dispensed with.
• a constant final rolling temperature is advantageously achieved by controlling or regulating the temperature of the part of the cut-off section entering the next rolling stand group using a heating device. Temperature differences between the head and foot sections of the cut-off section can be easily and reliably compensated in this way. This allows for high quality with a uniform microstructure to be achieved.
• a speed of that part of the severed section of the endless strand entering said rolling stand group is changed by means of the further rolling stand group.
• a subsequent speed change temperature differences between a head region and a foot region of the severed section can be taken into account.
• the energy expenditure for adjusting temperature differences between the head and foot sections of the severed section can be kept low or even eliminated. This makes it possible to reduce energy consumption. Energy efficiency can therefore be increased in a simple manner.
• An advantageous embodiment provides that a constant final rolling temperature is achieved by a speed of the part entering the further rolling stand group of the separated section is reduced by means of the additional rolling stand group. This allows for simple and energy-saving control of the final rolling temperature. A temperature difference between a more rapidly cooled head section and a less cooled foot section of the separated section can thus be compensated.
• a second type of operating mode is provided.
• the continuous strand produced by casting is continuously fed to the next group of rolling stands after passing through the first rolling stand group.
• continuous operation can still be selected for operation of the casting-rolling plant in the case of thin rolled products or rolled products with low strength.
• the first type of operating mode can be selected for operation of the casting-rolling plant. This allows the advantages of continuous casting-rolling operation to be flexibly combined with the advantages of discontinuous casting-rolling operation as needed. Furthermore, in this way, a sufficiently high kinetic energy of an emerging finished rolled product can be provided for the purpose of coiling.
• the temperature control device is understood to be a device that counteracts cooling by radiant heat or convection.
• the temperature control device can be designed as an insulated tunnel, on the inside of which thermal radiation is preferably reflected and/or thermal radiation is absorbed and then re-radiated.
• the conveyor line has a length of at least 40 m, preferably at least 80 m, and particularly preferably at least 120 m. Temperature losses during transport along such an extended conveyor line can be minimized with the help of the temperature control device.
• the length of the section severed from the continuous strand can be selected depending on the reel capacity.
• the section separated from the endless strand and/or in the second type of operating mode is heated.
• temperature losses can be reduced in both Operating conditions can be reliably compensated for.
• special quality requirements can be met.
• thermal power is also increased linearly for heating purposes.
• the section separated from the continuous strand and/or in the second operating mode the uninterrupted continuous strand between the first rolling stand group and the further rolling stand group is heated inductively, electrically, and/or by gas firing.
• This allows the temperature of a rolled product to be manufactured to be easily and reliably controlled or regulated.
• Hydrogen is preferably used as the fuel in the aforementioned gas firing.
• the method according to the invention can be carried out by means of the casting and rolling plant according to the invention.
• the casting-rolling mill according to the invention comprises a continuous casting device for casting a continuous strand. Furthermore, the casting-rolling mill comprises a first rolling stand group and a separating device arranged downstream of the first rolling stand group.
• the separating device is designed as a pendulum shear. A section of the continuous strand can be severed by means of the separating device.
• a further rolling stand group is provided, which is arranged downstream of the first rolling stand group and the aforementioned separating device.
• a conveyor line is provided, which connects the first rolling stand group to the further rolling stand group.
• An acceleration device is also provided along the conveyor line, by means of which the speed of the section severed from the continuous strand can be varied before it reaches the further rolling stand group.
• the casting-rolling mill according to the invention is preferably a single-strand casting-rolling mill, which particularly preferably comprises a hot rolling mill.
• the first rolling stand group is expediently designed as a roughing stand group.
• the further rolling stand group is preferably designed as a finishing stand group.
• a receiving device for a finished rolled product is usually provided downstream of the further rolling stand group. If the severed section is accelerated in such a way that a sufficient distance is achieved between said section and a subsequent section, the casting and rolling mill can be operated with only one receiving device. For safety reasons, however, it is customary to provide two receiving devices.
• the receiving device is often at least one reel, onto which the rolled product is wound by means of bending.
• an outfeed device can also be provided along the conveyor line. This is often also referred to as a pusher-piler, with an associated separating device.
• the casting-rolling plant can have a cleaning device for removing scale, which is preferably arranged along the conveyor line.
• the casting-rolling mill enables the method for operating the casting-rolling mill to be carried out efficiently and reliably.
• the casting-rolling mill can be operated either in the previously described first-type operating mode or in the previously described second-type operating mode.
• a casting-rolling mill can be provided that can produce a wide variety of final thicknesses with optimized energy consumption. Furthermore, this makes it possible to decouple the speed of the severed section from the speed of the endless strip specified by the continuous casting device. By accelerating this section, it is easy to reduce temperature loss with increasing final thickness, minimize scale formation, and prevent microstructures that deviate from the target microstructure.
• the conveyor line has a length of at least 40 m.
• the conveyor line has a length of at least 80 m, and particularly preferably at least 120 m.
• the length of the sections cut from the endless strip can be easily adapted to a coiler capacity. Furthermore, this makes it possible to continue to provide the necessary kinetic energy for reliably winding the finished rolled product onto a coiler as the final thickness of a rolled product to be produced increases.
• the first roll stand group and the further roll stand group are expediently arranged as directly consecutive roll stand groups.
• the arrangement of said roll stand groups in directly consecutive order means that no further roll stand group is provided between the said roll stand groups.
• other components of the casting and rolling plant such as a separating device, a discharge device, a heating device, or the like, can be provided between the roll stand groups arranged directly consecutively. This makes it possible to further increase the energy efficiency and cost-effectiveness of the plant. Temperature losses can be kept to a minimum.
• a temperature-maintaining device is provided along at least one section of the conveyor line for the purpose of thermally shielding the endless strand or the section separated from the endless strand.
• Said temperature-maintaining device is, in particular, the temperature-maintaining device already explained above in connection with the method.
• a heating device is expediently arranged along at least one further section of the conveyor line, by means of which a temperature of the endless strand or of the severed section of the endless strand can be controlled or regulated. This allows the section severed from the endless strand to be heated in a simple manner in the first operating state and/or the uninterrupted endless strand between the first rolling stand group and the further rolling stand group to be heated in the second operating state.
• the heating device is advantageously provided for heating the endless strand or the section severed from the endless strand inductively, by gas firing, and/or by thermal radiation. This allows the temperature of the rolled product to be produced to be controlled or regulated in an energy-efficient and reliable manner.
• Figure 1 shows an embodiment of a casting and rolling plant 10 in a schematic representation.
• the exemplary embodiment of the casting-rolling plant 10 comprises a continuous casting device 28.
• a continuous strand 12 is cast by means of the continuous casting device 28.
• the casting-rolling plant 10 comprises a first rolling stand group 14. This is embodied, for example, as a roughing stand group.
• the continuous strand 12 produced by the continuous casting device 28 is rolled for the first time in the first rolling stand group 14.
• Downstream 30 of the first A cutting device 18 is arranged in the rolling stand group 14, by means of which a section 16 can be cut off from the continuous strand 12.
• This cutting device 18 is designed, for example, as a pendulum shear.
• a further rolling stand group 20 is provided, which is arranged downstream 30 of the first rolling stand group 14 and the cutting device 18.
• the further rolling stand group 20 is designed as a finishing rolling stand group.
• a conveyor line 32 is provided between the first roll stand group 14 and the further roll stand group 20.
• This conveyor line connects the first roll stand group 14 to the further roll stand group 20.
• a discharge device 38 which comprises a drum shear, is arranged, for example.
• a temperature-maintaining device 26, an acceleration device 36, a cleaning device 22, and a heating device 24 are arranged, for example, along this conveyor line 32.
• the sequence and position of the aforementioned components or of further components that may be required for the operation of the casting-rolling mill 10 can be rearranged as needed.
• the first roll stand group 14 and the further roll stand group 20 are directly connected to one another by means of the conveyor line 32.
• a cooling section (not shown in detail) and two receiving devices 34 are provided, for example.
• the cooling section can be designed, for example, as a strip cooling device, a laminar cooling device, a pressure cooling device, or a combination thereof.
• Each of the receiving devices 34 is designed, for example, as a coiler. A finished rolled product is wound onto each of the coilers by bending until a predetermined maximum capacity, such as a predetermined weight or a predetermined diameter, is reached.
• a further cutting device 18 is provided, for example.
• This can be designed, for example, as a pendulum shear, drum shear, or crank shear, which can also be designed as a high-speed shear or as a start/stop shear. This makes it possible to cut off an endless strand 12 or a section 16 separated therefrom if the maximum capacity of one of the two receiving devices 34 is reached or in the event of a fault.
• the conveyor line 32 has a length of at least 100 m. This allows a section 16 severed from the endless strand 12 to leave the additional rolling stand group 20 with sufficiently high kinetic energy by means of the aforementioned acceleration device 36 for the purpose of coiling, and allows the length of the section to be adjusted to a maximum capacity of the receiving device 34. Operation of the aforementioned additional separation device 18 can therefore generally be dispensed with.
• the temperature-maintaining device 26 is embodied, for example, as an insulated tunnel (not shown in detail), the interior of which reflects and/or absorbs thermal radiation and then re-radiates it. In this way, heat losses during transport of the section 16 along the conveyor line 32 can be minimized.
• Figure 2 illustrates a first example of a method 100a for operating a casting and rolling plant 10.
• the casting and rolling plant 10 is in particular the method associated with Figure 1 described casting and rolling plant 10.
• the first example of the method 100a provides that a continuous strand 12 is produced 102 by casting. In the present case, this is produced 102, for example, using the continuous casting device 28. The continuous strand 12 is then fed 104 to the first rolling stand group 14 of the casting and rolling mill 10.
• a section 16 is severed 106 from said endless strand 12 after passing through the first rolling stand group 14.
• This makes it possible to decouple a throughput speed of the severed section 16 from a speed of the endless strand 12 predetermined by a material flow of the continuous casting device 28.
• Such a decoupling is particularly advantageous in order to achieve high kinetic energy of the rolled product when the rolled product exits the further rolling stand group 20, even with a high strength and/or final thickness of the rolled product. This kinetic energy is necessary in order to reliably transfer a finished rolled product to the receiving device 34 by bending.
• the aforementioned section 16 is severed 106 from the endless strand 12 before the endless strand 12 reaches the further rolling stand group 20.
• the aforementioned section 16 is severed 106 from the endless strand 12 before the endless strand 12 reaches a cleaning device 22 upstream of the further rolling stand group 20.
• This makes it possible to convey the section 16 severed from the endless strand 12 through the cleaning device 22 at an increased speed, thereby minimizing any temperature loss due to cleaning.
• the section 16 severed from the endless strand 12 can thus be accelerated 110 in a simple and reliable manner between the first rolling stand group 14 and the further rolling stand group 20 to a predeterminable speed.
• the casting-rolling mill 10 For thin rolled products and/or rolled products with low strength, it is possible to operate the casting-rolling mill 10 in a second operating mode 120.
• the kinetic energy required for coiling can be provided based on the speed of the continuous strand 12 determined by the material flow of the continuous casting device 28.
• the continuous strand 12 is continuously fed 108 to the further rolling stand group 20.
• a conveyor line 32 connecting the first rolling stand group 14 and the further rolling stand group 20 is preferably greater than 100 m.
• the presently described first example of the method 100a provides that the section 16 severed from the endless strand 12 and/or the uninterrupted endless strand 12 passes through 122 the temperature-maintaining device 26 arranged along the conveyor line 32.
• said section 16 and/or said uninterrupted endless strand 12 is heated 124 by means of an inductive and/or electrical heating device 24 along at least a portion of the conveyor line 32.
• the heating device 24 can alternatively or additionally be designed as a gas-fired device. in which combustible gas, in particular hydrogen, is burned for the purpose of heating 124 said section 16 and/or said continuous strand 12. This can counteract temperature loss, undesired scale formation, and undesired structural changes.
• a constant speed of the part of said section 16 entering this rolling stand group 20 is maintained 112.
• a constant final rolling temperature is achieved by controlling or regulating the temperature of the part of said severed section 16 entering the further rolling stand group 20 by means of the heating device 24 114.
• a constant final rolling temperature is achieved by controlling or regulating the temperature of the part of the endless strip 12 entering this rolling stand group 20 by means of the heating device 24 114.
• Figure 3 illustrates a second example of a method 100b for operating a casting and rolling plant 10.
• the casting and rolling plant 10 is in particular the method associated with Figure 1 described casting and rolling plant 10.
• the second example of method 100b provides that, after the section 16 severed from the endless strand 12 enters the further rolling stand group 20, a speed of the part of said severed section 16 entering said rolling stand group 20 is changed 116 by means of the further rolling stand group 20.
• a constant final rolling temperature is achieved by reducing 116 the speed of the part of said severed section 16 entering the further rolling stand group 20 by means of the further rolling stand group 20. In this way, a temperature difference between a head region and a less cooled foot region can be easily compensated.
• the method described in connection with Figure 1 The heating 124 described above by means of the heating device 24 can be completely or partially dispensed with. This allows energy consumption to be optimized and energy efficiency to be increased during operation of the casting-rolling plant 10.
• the portion of the section 16 separated from the continuous strand 12 entering the further rolling stand group 20 can still be heated 124 by the heating device 24 after passing 122 through the temperature-maintaining device 26. Energy losses due to transport along the extended conveyor line 32 can be easily compensated. This can counteract structural changes or surface scaling.
• the described embodiment of the casting-rolling plant 10 can advantageously produce rolled products with a final thickness of 0.8 mm to 32 mm, a target width of 600 mm to 3000 mm, and a thickness of the endless strip 12 of 70 mm to 250 mm provided by the continuous casting device 28. This allows a maximum weight of one of the support devices 34 of 60 t or a maximum specific weight of the support device 34 of 25 kg/mm to be achieved.

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Citations (4)

• 2024
  • 2024-02-02 EP EP24155484.9A patent/EP4596128A1/fr active Pending
• 2025
  • 2025-01-23 WO PCT/EP2025/051622 patent/WO2025162803A1/fr active Pending

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