EP4028181A1 - Kaltwalzen eines walzguts in einer walzstrasse mit mehreren walzgerüsten - Google Patents
Kaltwalzen eines walzguts in einer walzstrasse mit mehreren walzgerüstenInfo
- Publication number
- EP4028181A1 EP4028181A1 EP20768550.4A EP20768550A EP4028181A1 EP 4028181 A1 EP4028181 A1 EP 4028181A1 EP 20768550 A EP20768550 A EP 20768550A EP 4028181 A1 EP4028181 A1 EP 4028181A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- rolling stock
- stock
- pass
- roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- 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
- 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
- B21B1/24—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 in a continuous or semi-continuous process
- B21B1/28—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 in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- 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
- B21B1/30—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 in a non-continuous process
- B21B1/32—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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/36—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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-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
-
- 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
- B21B37/46—Roll speed or drive motor control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
-
- 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
-
- 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
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, 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
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
-
- 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
-
- 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
Definitions
- the invention relates to the cold rolling of a rolling stock in a rolling train with a plurality of rolling stands.
- a rolling stock In a rolling stand, a rolling stock, usually a metallic rolled strip, is rolled in a roll gap between two work rolls of the rolling stand in order to reduce the thickness of the rolling stock.
- a number of rolling stands are arranged in a so-called rolling train, through which the rolling stock traverses one after the other in order to successively reduce the thickness of the rolling stock.
- the rolling of the rolling stock in one of the rolling stands is referred to as a rolling pass.
- several rolling passes are carried out one after the other.
- the reduction in the thickness of the rolling stock during a rolling pass is referred to as the decrease in the rolling pass.
- cold rolling the rolling stock is rolled at a rolling stock temperature below the recrystallization temperature.
- electrical sheets with a high silicon content are becoming more and more important.
- the high brittleness of these electrical sheets can lead to numerous difficulties, especially during cold forming, for example frequent strip tears and therefore unstable production conditions during cold rolling.
- By increasing the rolling stock temperature of the rolling stock its brittleness can be reduced.
- the temperature of the rolling stock during cold rolling must not exceed the recrystallization temperature of the rolling stock due to the principle involved.
- the temperature of the rolled stock should generally also be limited for other reasons during cold rolling.
- cold rolling is mostly used a lubricant is applied to the work rolls of the roll stands and / or to the rolling stock in order to reduce friction between the rolling stock and the work rolls.
- the lubricant is or contains a rolling oil which can crack at high temperatures, for example above 200 ° C.
- the cold rolling can be followed by processing steps for processing the cold-rolled stock, for example coating the rolling stock, for which an excessively high rolling stock temperature is disadvantageous (in the case of coating the rolling stock, for example, reduced adhesion of the coating).
- a high rolling stock temperature can lead to increased wear of plant equipment, for example plastic-coated deflection rollers for the rolling stock or depositing saddles for the rolled rolling stock, or to a thermal deformation of the work roll contour in the axial direction, which impairs the flatness of the rolling stock.
- JP H01218710 A proposes heating a rolled strip entering a cold rolling stand to a temperature between 100 ° C - 500 ° C, and applying lubricant to the work rolls of the rolling stand on the inlet side and water as a coolant on the outlet side.
- the heating is intended to reduce the deformation resistance of the rolled strip and, on the other hand, the application of cooling water is intended to prevent destruction of the lubricating film on the work rolls due to overheating and excessive thermal deformation of the work rolls.
- the invention is based on the object of specifying a method and a rolling train for cold rolling a rolling stock with a plurality of rolling stands, which are improved with regard to the temperature control of the rolling stock during rolling and / or after rolling.
- an upper limit temperature and / or a lower limit temperature for a rolling stock temperature of the rolling stock is specified for at least one selected rolling pass, in particular for each rolling pass and the rolling stock temperature is controlled and / or regulated by at least one of the following control or regulation measures in such a way that the
- the rolled stock temperature in each selected rolling pass does not exceed the upper limit temperature specified for the rolling pass and / or does not fall below the lower limit temperature specified for the rolling pass:
- the invention therefore provides for the rolling stock temperature to be controlled in at least one rolling pass so that it does not exceed a rolling pass-specific upper limit temperature and / or does not fall below a rolling pass-specific lower limit temperature.
- This can generally reduce operational disruptions such as strip tears and thus the throughput of a rolling train can be increased.
- the production conditions for cold rolling of critical rolling stock such as electrical steel sheets with a high silicon content are improved or even created in the first place.
- the limit temperatures the end temperature of the rolled stock at the exit of the rolling train can also be influenced in a targeted manner, so that flexible further processing of the cold-rolled stock can be achieved.
- an inlet temperature of the rolling stock required at the entrance to the rolling train can be minimized and, as a result, energy for heating the rolling stock before the first rolling pass can be saved.
- the system equipment can be protected in order to reduce its wear and tear.
- control or regulation measures mentioned are particularly suitable for influencing the rolling stock temperature during cold rolling. Heating the rolling stock before the first rolling pass reduces the brittleness of the rolling stock and thus the risk of strip tears in the rolling stock.
- the cooling of work rolls and / or the rolling stock between rolling passes counteracts heating of the work rolls and the rolling stock during cold forming of the rolling stock.
- the amount of heat dissipated from the work rolls can be determined from the modeling of the heat transfer (determination of the heat transfer coefficient between a roll surface and the roll coolant) and is, for example from F. Hell: Basics of heat transfer, VDI-Verlag 1982, ISBN number 978-3-18-400529-0, pages 77-85 known.
- the heat transfer coefficient can also be determined empirically as a function of the roll coolant flow and the roll coolant pressure (so-called table model).
- the temperature of the work rolls can be determined, from which the heat flow between the rolling stock and the work rolls - i.e. the amount of heat given off by the rolling stock to the work rolls - in the roll gap can be determined and regulated by appropriate control or regulation of the roll coolant flow and / or the roll coolant pressure so that the rolling stock temperature in the roll gap can be set in a targeted manner.
- the amount of heat dissipated from the rolling stock to the rolling stock coolant can be determined by modeling the heat transfer if the rolling stock coolant flow and the rolling stock coolant pressure are known, either by a model-based coefficient mentioned above or by an empirical determination of the heat transfer coefficient between the rolling stock coolant and the rolling stock surface acted upon by it as a function of the rolling stock coolant flow and the rolling stock coolant pressure.
- a lubricant By applying a lubricant to the work rolls and / or to the rolling stock in at least one rolling pass, the friction between the rolling stock and the work rolls is reduced and thus a heating of the rolling stock and / or the work rolls is counteracted.
- Latter is basically calculated from an applied rolling force, a coefficient of friction and a differential speed between the rolled strip and the work rolls in the roll gap of the respective roll stand.
- the rolling force is usually specified by an automation system of the rolling train to achieve the desired pass reduction on the relevant stand and is therefore known.
- the current rolling force for example in the case of thickness control, can also be continuously measured online using devices that generate the rolling force on the roll stand in question (for example hydraulic cylinders).
- devices that generate the rolling force on the roll stand in question for example hydraulic cylinders.
- formula (3.13) is known in H. Hoffmann: Handbuch Umformen, 2012, ISBN 978-3-446-42778-5, in which the entry and exit speed of the rolling stock at the roll stand and the roll gap geometry, which depends on the roll diameters of the work rolls and the pass decrease on the corresponding stand.
- empirical values can be used to determine the coefficient of friction in the roll gap.
- the known parameters of surface quality, material properties and lubricant application in a special rolling process determine the coefficient of friction.
- a model of the coefficient of friction from JBAF Smeulders: Lubrication in the Cold Rolling Process Described by a 3D Stribeck Curve, AISTech 2013 Proceedings is known.
- the reduction in thickness of the rolling stock to be achieved in the rolling train is distributed to the individual rolling stands by a pass schedule distribution for the pass acceptance of the individual rolling passes.
- rolling stock is heated in every roll stand by plastic deformation of the rolling stock.
- the deformation heat generated in the rolling stock can be determined in a simple manner by a person skilled in the art from the pass decrease on the respective roll stand and from the material properties of the rolling stock.
- all stands of the rolling mill taken into account, it can be achieved, for example, that a predetermined temperature range for the rolling stock temperature is maintained over the entire rolling train.
- the rolling speed is understood to mean a speed at which the rolling stock passes through the rolling stands of the rolling train.
- the rolling speed can directly influence the above-mentioned frictional power loss on the individual rolling stands, since the rolling speed also directly affects the differential speeds in the individual rolling stands.
- the rolling speed therefore also influences the temperature of the rolling stock in the individual rolling passes.
- control or regulation measures are available according to the method according to the invention, which influence the rolling process in each case via a corresponding manipulated variable and which enable the To keep the rolling stock temperature during the entire passage of the rolling stock through the rolling train within a certain temperature range, which is predetermined by a lower and an upper limit temperature.
- These manipulated variables include the heating power of a heating device for setting an inlet temperature of the rolled strip before the first rolling pass, the cooling parameters for setting the amount of heat that is removed from the rolling stock through the contact of the rolling stock with the work rolls and by the coolant applied to the rolling stock, the lubrication parameters to adjust the frictional power loss in the roll gap of the respective roll stands that
- Pass schedule distribution for setting the deformation heat generated during pass acceptance in the respective roll stands, as well as the rolling speed, which also influences the frictional power loss during pass acceptance in the individual roll stands.
- the above-mentioned control or regulation measures can be carried out independently of one another.
- the resulting rolling stock temperatures can be determined in advance using a simulation by a computing unit, ie before the actual implementation of the rolling process itself.
- This computing unit can be identical to the control that carries out the control or regulation measures on the rolling train during the actual rolling process.
- - is determined: for example, is
- the friction loss in the roll gap of the first roll stand is also determined on the basis of the lubrication parameters preset on the first roll stand and the rolling speed preset on the first roll stand, and
- the deformation heat that arises on the basis of the preset pass schedule distribution on the first roll stand is determined from the pass decrease on the first roll stand and from the material properties of the rolled stock.
- the resulting rolling stock temperature behind the first roll stand after the rolling stock coolant has been applied can be determined.
- the rolled stock temperature behind the first roll stand determined in this way can be used as a starting point to determine the rolled stock temperature behind the second roll stand in the same way on the basis of the preset rolling speed, pass decrease and To determine cooling and lubrication parameters. This successive determination of the rolling stock temperature can be continued until the rolling stock emerges from the last rolling stand of the rolling train.
- one of the above-mentioned control or regulation measures can be applied with values deviating from the preset values for the respective manipulated variable and the rolling stock temperature can be calculated again to check whether the specified limit temperatures with changed parameters for the control or regulation measures are adhered to. The check can be carried out again after each change to the set manipulated variables.
- the applied lubrication and / or the cooling on this stand can be increased by the
- a solution is sought in which several criteria are to be observed at the same time under specification of an objective function, the objective function weighting the individual criteria individually and these criteria e.g. a desired temperature control over the entire rolling mill, an optimized pass schedule in With regard to desired material properties, the highest possible throughput rate through the rolling train, compliance with a specific rolling force distribution or the lowest possible use of coolants and lubricants.
- the computational effort to find a solution to a global optimization problem increases disproportionately with the number of variable parameters.
- the independent execution of one or more of the above-mentioned control or regulating measures does not necessarily provide the optimal solution in relation to such a global optimization problem, but an independent implementation of the execution of one or more of the above-mentioned control or regulating measures from one another, for example as a retrofit solution for existing ones
- Controls of rolling mills are suitable, as checking whether an applied control or regulating measure ensures compliance with the limit temperatures is in any case only proportional to the rolling stands of the rolling mill, but does not depend on the number of variable parameters themselves.
- the computing power required in such a case can therefore also be provided by a control of the rolling train itself.
- a model-based calculation of the inlet temperature of the rolling stock, the cooling and lubrication parameters, the pass schedule distribution and the rolling speed takes place as a solution to a global optimization problem, specifying a target function.
- a global optimization problem there can be a multitude of solutions, among which the most suitable, for example, is only determined on the basis of a model, for example only taking into account further criteria, for example by additionally maximizing the rolling speed or maintaining a specific rolling force distribution on the rolling stands 3 to 7.
- an upper limit temperature in the range between 140 ° C. and 250 ° C. and / or a lower limit temperature in the range between 20 ° C. and 140 ° C. is specified for at least one rolling pass.
- Such an upper limit temperature can in particular avoid the above-mentioned cracking of rolling oil, which is used as a lubricant or a component of a lubricant.
- the lower limit temperature depends on the material and is therefore adapted to the rolling stock.
- a common upper limit temperature and / or a common lower limit temperature are specified for all rolling passes. This simplifies the method according to the invention compared to an embodiment with pass-dependent limit temperatures.
- the rolling stock is heated to an inlet temperature with a heating device, in particular with induction heating, before the first rolling pass.
- a heating device in particular with induction heating
- the heating of the rolling stock can be determined simply from the power of the induction heating, the efficiency and the duration of action, which results from the rolling stock speed and the overall length of the heating, as well as the material properties of the rolling stock, in particular its specific heat capacity.
- the work rolls of at least one roll stand are cooled by applying a roll coolant to the work rolls only on the outlet side.
- the exit side of a roll stand is understood to mean that side of the roll stand on which the rolling stock leaves the roll stand.
- the entry side of a roll stand is understood to mean that side of the roll stand on which the rolling stock enters the roll stand.
- a lubricant is applied to the work rolls and / or to the rolling stock in at least one pass by generating a mixture of the lubricant and a carrier gas in an atomization device and applying the mixture to the work rolls and / or using lubricant nozzles the rolling stock is sprayed.
- Such an application of lubricant is known, for example, from EP 2651 577 B1 and has the advantage over the application of a lubricating emulsion, for example, that the lubricant can be applied very specifically and sparingly.
- a lubricant is applied to the work rolls and / or to the rolling stock with at least one rolling pass only in a running-in form. This is particularly advantageous in the case of roller passes, in which coolant is only applied in a soapy manner, because then no lubricant is washed off the coolant and thus lubricant is saved.
- a parameter value is determined offline using a computational model of at least part of the rolling train and the parameter is set to the parameter value when the rolling train is in operation.
- the parameters that can be determined by a computer model include an inlet temperature of the rolling stock, cooling parameters (e.g.
- lubrication parameters e.g. lubricant flows and lubricant pressures
- pass schedule distribution ie the Pass reductions of the individual rolling passes
- At least a subset of the parameters for controlling or regulating the rolling stock temperature is determined in advance (in particular calculated).
- At least two parameter values determined offline are determined as a solution to a global optimization problem by specifying an objective function.
- at least one further criterion can advantageously be taken into account during the rolling process of the rolling stock.
- At least one measured value of the rolling stock temperature is recorded during operation of the rolling train, and at least one parameter of a control or regulation measure is set online as a function of at least one measured value.
- at least a subset of the parameters for controlling or regulating the rolling stock temperature is set online as a function of a measured rolling stock temperature of the rolling stock. This can in particular relate to the cooling and lubrication of the work rolls and / or the rolling stock.
- a rolling train according to the invention comprises a plurality of rolling stands for cold rolling a rolling stock and a control which is set up to carry out at least one of the above-mentioned control or regulating measures.
- the rolling train can also include in particular:
- a heating device that can be controlled or regulated by the controller and is set up to heat the rolling stock before the first rolling pass, and / or
- a cooling system which can be controlled or regulated by the controller and which is set up to apply a roll coolant to the work rolls of at least one roll stand and / or a To dispense rolling stock coolant onto the rolling stock between at least two successive rolling passes, and / or
- a lubrication system that can be controlled or regulated by the controller, which is set up to dispense a lubricant onto the work rolls and / or onto the rolling stock during at least one rolling pass, and / or
- At least one measuring unit which is set up to detect a rolling stock temperature of the rolling stock at any point on the rolling train.
- FIG. 2 shows a flow chart of an exemplary embodiment of the method according to the invention.
- Figure 1 shows schematically an embodiment of a rolling train 1 according to the invention with five roll stands 3 to 7 for cold rolling a rolling stock 2.
- Each roll stand 3 to 7 has two stacked work rolls 9, 10, which are spaced from one another by a roll gap 11.
- each roll stand 3 to 7 for each Work roll 9, 10 has two back-up rolls 15 to 18 which are arranged one above the other on a side of the respective work roll 9, 10 facing away from the rolling stock 2, a first back-up roll 15, 17 contacting the second back-up roll 16, 18 and the work roll 9, 10 .
- a rolling pass is carried out by each roll stand 3 to 7, in which the thickness of the rolling stock 2 is reduced by the so-called pass decrease of the rolling pass.
- a heating device 19 is arranged at the entrance of the rolling train 1 and is set up to heat the rolling stock 2 before the first rolling pass, which is carried out by a first rolling stand 3.
- the heating device 19 is designed, for example, as an induction heater with which the rolling stock 3 can be inductively heated.
- the rolling train 1 also has a cooling system which is set up to apply a roll coolant 21 to the work rolls 9, 10 of the rolling stands 4 to 6, which carry out the second, third and fourth rolling passes, and a rolling stock coolant 23 between the second and third rolling passes, the third and fourth rolling pass and the fourth and fifth rolling pass on the rolling stock 2.
- the cooling system comprises an upper cooling beam 25 and a lower cooling beam 27 for each of the roll stands 4 to 6. With the upper cooling beam 25, roll coolant 21 is on the outlet side of the upper work roll 9 of the respective roll stand 4 to 6 and rolling stock coolant 23 is applied to an upper surface of the rolling stock 3 outputable.
- roll coolant 21 can be output on the outlet side to the lower work roll 10 of the respective roll stands 4 to 6 and rolling stock coolant 23 can be applied to a lower rolling stock surface of the rolling stock 3.
- Each cooling beam 25, 27 comprises, for example, several roll coolant nozzles, with which the roll coolant 21 can be applied to the respective work roll 9, 10, and / or several roll coolant nozzles with which the rolling stock coolant 23 can be output to the rolling stock 2.
- the roller coolant 21 is, for example, water or a cooling emulsion.
- the rolling stock coolant 23 is likewise, for example, water or a cooling emulsion and can override the roll coolant 21.
- a cooling emulsion consists of a cooling liquid and a lubricant, for example water as the cooling liquid and oil as the lubricant, and possibly emulsifiers.
- the main component of the cooling emulsion is the cooling liquid, while the lubricant content of the cooling emulsion is only a few percent, for example two to three percent.
- the amount of roll coolant 21 applied to the two work rolls 9, 10 of a roll stand 4 to 6 (in total, i.e. on both work rolls 9, 10 together) in liters per minute corresponds approximately to a motor output of the roll stand 4 to 6 in kW, with the Motor power is the power of a motor that drives the work rolls 9, 10 of the roll stand 4 to 6.
- the rolling train 1 also has a lubrication system which is set up to dispense a lubricant 29 onto the work rolls 9, 10 of all of the rolling stands 3 to 7 on the inlet side.
- the lubrication system has an upper lubrication bar 31 and a lower lubrication bar 33 for each roll stand 3 to 7. With the upper lubrication bar 31, lubricant 29 can be dispensed on the inlet side onto the upper work roll 9 of the respective roll stand 3 to 7. With the lower lubrication bar 33, lubricant 29 can be dispensed on the inlet side onto the lower work roll 10 of the respective roll stand 3 to 7.
- each lubrication bar 31, 33 comprises an atomization device in which a mixture of the lubricant 29 and a carrier gas can be generated, and several lubricant nozzles with which the mixture can be sprayed onto the respective work roll 9, 10.
- the lubricant 29 is, for example, pure rolling oil and the carrier gas is, for example, air.
- the lubricant 29 is a lubricating emulsion, which consists of a carrier liquid and rolling oil and possibly emulsifiers, and each lubricating bar 31, 33 has
- collecting devices 35 are arranged which are set up to collect roll coolant 21, rolling stock coolant 23 and lubricant 29 flowing off from the roll stands 3 to 7.
- the mixture of roll coolant 21, rolling stock coolant 23 and lubricant 29 collected by the collecting devices 35 is preferably broken down into its constituent parts, which are then reused.
- the rolling train 1 also has a plurality of measuring units 37, each of which is set up to detect a rolling stock temperature of the rolling stock 2.
- a measuring unit 37 is arranged between the heating device 19 and the first roll stand 3, further measuring units 37 are each arranged between two adjacent roll stands 3 to 7, and a measuring unit 37 is at the end of the rolling train 1 behind the roll stand 7 that carries out the fifth rolling pass, arranged.
- the rolling train 1 also has a control 39 with which the heating device 19, the cooling system, that is to say the roll coolant flows, roll coolant pressures, roll coolant flows and roll coolant pressures output by the cooling bars 25, 27, and the lubrication system, that is to say that from the lubrication bars 31, 33 lubricant flows and
- Lubricant pressures each controllable or regulatable, in order to control or regulate the rolling stock temperature of the rolling stock 2 in each rolling pass.
- a temperature window for the rolling stock temperature between one predetermined upper limit temperature and a lower limit temperature, and the rolling stock temperature is controlled and / or regulated in such a way that the rolling stock temperature in each rolling pass assumes a temperature value lying in the temperature window specified for the rolling pass.
- a pass schedule distribution for the pass acceptance of the individual rolling passes is created and implemented.
- the roll stands 3 to 7, that is to say the gap heights of the roll gaps 11 of the roll stands 3 to 7, are set according to the pass schedule distribution.
- a rolling speed at which the rolling stock 2 runs through the rolling train 1 is controlled or regulated in order to influence the rolling stock temperature in the rolling passes.
- the rolling speed is set by the speeds of the work rolls 9, 10.
- the parameters of the temperature control and / or regulation are an inlet temperature of the rolling stock 2 to be set with the heating device 19, the roll coolant flows, roll coolant pressures, roll coolant flows and rolling stock coolant pressures (cooling parameters) which are respectively output by the cooling bars 31, 33 Lubricant flows and lubricant pressures (lubrication parameters), the pass schedule distribution and the rolling speed.
- These parameters are each determined offline, for example, using a computational model of at least part of the rolling train 1. For example, there is a model-based calculation of the inlet temperature of the rolling stock 2, the cooling and lubrication parameters, the pass schedule distribution and the rolling speed as a solution to a global optimization problem, specifying a target function.
- the parameters determined in this way are each set manually or by the controller 39.
- some or all of the parameters can be regulated online as a function of the measured values of the measuring units 37 in such a way that the rolling stock temperature in each rolling pass assumes a temperature value within the temperature window specified for the rolling pass.
- the pass schedule distribution, the inlet temperature of the rolling stock 2 and the rolling speed are determined offline, while the cooling and lubrication parameters are regulated online as a function of the measured values of the measuring units 37.
- FIG. 2 shows a flow chart 100 of an exemplary embodiment of the method according to the invention for cold rolling a rolling stock 2 in a rolling train 1 with method steps 101 to 106.
- a temperature window for the rolling stock temperature of the rolling stock 2 in the rolling pass is specified for each rolling pass.
- the offline parameters are determined using a computer model of at least part of the rolling train 1, for example the pass schedule distribution, the inlet temperature of the rolling stock 2 and the rolling speed.
- a third method step 103 the cold rolling of the rolling stock 2 in the rolling train 1 is started with the offline parameters determined in the second method step 102 and predetermined initial values of the online parameters.
- a rolling stock temperature of the rolling stock 2 is determined for each rolling pass.
- the rolling stock temperature is recorded for a rolling pass with at least one measuring unit 37 or the rolling stock temperature in the rolling pass is calculated, For example, as described above, with a calculation of the heat flow between the rolling stock and the work rolls in the roll gap based on a modeling of the heat transfer and / or with a calculation of the deformation heat that arises when the rolling stock is heated by the plastic deformation of the rolling stock.
- a fifth method step 105 it is checked whether the rolling stock temperature in each rolling pass assumes a temperature value lying in the temperature window specified for the rolling pass. If the check shows that the rolling stock temperature in each rolling pass assumes a temperature value lying in the temperature window specified for the rolling pass, the fourth method step 104 is carried out again. Otherwise, a sixth method step 106 is carried out.
- the value of at least one online parameter is changed in order to guide the rolling stock temperature in each rolling pass, in which the rolling stock temperature is outside the temperature window predetermined for the rolling pass, into the predetermined temperature window.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19196307.3A EP3791971A1 (de) | 2019-09-10 | 2019-09-10 | Kaltwalzen eines walzguts in einer walzstrasse mit mehreren walzgerüsten |
| PCT/EP2020/074901 WO2021048038A1 (de) | 2019-09-10 | 2020-09-07 | Kaltwalzen eines walzguts in einer walzstrasse mit mehreren walzgerüsten |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4028181A1 true EP4028181A1 (de) | 2022-07-20 |
| EP4028181B1 EP4028181B1 (de) | 2023-09-06 |
| EP4028181C0 EP4028181C0 (de) | 2023-09-06 |
Family
ID=67909289
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19196307.3A Withdrawn EP3791971A1 (de) | 2019-09-10 | 2019-09-10 | Kaltwalzen eines walzguts in einer walzstrasse mit mehreren walzgerüsten |
| EP20768550.4A Active EP4028181B1 (de) | 2019-09-10 | 2020-09-07 | Kaltwalzen eines walzguts in einer walzstrasse mit mehreren walzgerüsten |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19196307.3A Withdrawn EP3791971A1 (de) | 2019-09-10 | 2019-09-10 | Kaltwalzen eines walzguts in einer walzstrasse mit mehreren walzgerüsten |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12103061B2 (de) |
| EP (2) | EP3791971A1 (de) |
| JP (1) | JP7326594B2 (de) |
| KR (1) | KR102714779B1 (de) |
| CN (1) | CN114340809A (de) |
| WO (1) | WO2021048038A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112337984B (zh) * | 2020-10-19 | 2021-10-15 | 太原理工大学 | 一种基于摩擦辊作用的复合带异温轧制方法及设备 |
| EP4124398B1 (de) * | 2021-07-27 | 2024-04-10 | Primetals Technologies Austria GmbH | Verfahren zur bestimmung mechanischer eigenschaften eines walzgutes mit hilfe eines hybriden modells |
| CN115283444B (zh) * | 2022-10-09 | 2022-12-20 | 江苏常宝钢管股份有限公司 | 一种连轧机轧辊冷却的方法 |
| TWI830575B (zh) * | 2023-01-11 | 2024-01-21 | 中國鋼鐵股份有限公司 | 鋼材軋延的方法 |
| CN117000763A (zh) * | 2023-08-08 | 2023-11-07 | 中冶南方工程技术有限公司 | 柔性精轧机组、连铸连轧柔性生产线以及对应的生产方法 |
| EP4599953A1 (de) | 2024-02-12 | 2025-08-13 | Primetals Technologies Austria GmbH | Verfahren zur auslaufseitigen bandkühlung an einer reversierwalzanlage für kaltgewalztes metallband |
| EP4732969A1 (de) | 2024-10-22 | 2026-04-29 | Primetals Technologies Austria GmbH | Verfahren zur bestimmung von verbesserten setupwerten für ein walzgerüst zum kaltwalzen eines bandes |
| CN120094970B (zh) * | 2025-05-08 | 2025-08-19 | 常州同泰高导新材料有限公司 | 一种超高压用铜杆轧制控制方法 |
Family Cites Families (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61132205A (ja) | 1984-12-03 | 1986-06-19 | Kawasaki Steel Corp | 珪素鋼板の冷間圧延方法 |
| JPS6272412A (ja) * | 1985-09-27 | 1987-04-03 | Nippon Steel Corp | 冷間圧延における板温度制御方法 |
| JPH01218710A (ja) * | 1988-02-29 | 1989-08-31 | Nippon Steel Corp | 冷間タンデム圧延における圧延潤骨およびロール冷却方法 |
| JPH0361325A (ja) | 1989-07-31 | 1991-03-18 | Nkk Corp | 難加工材の温間圧延方法 |
| SU1678480A2 (ru) | 1989-12-19 | 1991-09-23 | Киевский институт автоматики им.ХХУ съезда КПСС | Способ автоматического управлени комплексом механических свойств прокатываемых стальных листов |
| JPH05186828A (ja) | 1992-01-10 | 1993-07-27 | Sumitomo Metal Ind Ltd | 低鉄損方向性電磁鋼板の製造方法 |
| JP2655991B2 (ja) * | 1993-07-22 | 1997-09-24 | 川崎製鉄株式会社 | 方向性けい素鋼板の冷間圧延方法および冷間圧延機のロール冷却装置 |
| JP3240035B2 (ja) | 1994-07-22 | 2001-12-17 | 川崎製鉄株式会社 | コイル全長にわたり磁気特性に優れた方向性けい素鋼板の製造方法 |
| JP3635914B2 (ja) | 1998-03-24 | 2005-04-06 | Jfeスチール株式会社 | ストリップを温間圧延する圧延機のクーラント装置 |
| JP3614295B2 (ja) | 1998-04-08 | 2005-01-26 | Jfeスチール株式会社 | 搬送中の導電材の誘導加熱温度制御方法 |
| JP3441988B2 (ja) | 1998-12-08 | 2003-09-02 | 新日本製鐵株式会社 | 冷間タンデム圧延機における圧延方法 |
| JP4309501B2 (ja) * | 1999-01-13 | 2009-08-05 | 新日本製鐵株式会社 | 冷間タンデム圧延機の圧延方法 |
| JP4561810B2 (ja) * | 2002-06-18 | 2010-10-13 | Jfeスチール株式会社 | 鋼材の熱処理方法及び製造方法並びに製造設備 |
| JP4505231B2 (ja) | 2004-01-21 | 2010-07-21 | 新日本製鐵株式会社 | 冷間圧延における潤滑油供給方法 |
| JP4259335B2 (ja) | 2004-01-30 | 2009-04-30 | 住友金属工業株式会社 | 鉄鋼プロセスにおけるモデルのパラメータ修正方法及びその方法を用いた熱延鋼板の製造方法 |
| DE102006048427B3 (de) | 2006-10-12 | 2008-05-21 | Siemens Ag | Walzanlage, nachgerüstete Walzanlage, Walzwerk oder Walzstraße, Verfahren zum Ansteuern einer Walzanlage und Verwendung eines ersten Gerüsts einer Walzanlage |
| JP2009106975A (ja) | 2007-10-30 | 2009-05-21 | Sumitomo Metal Ind Ltd | 冷延鋼板の製造方法 |
| AT507663B1 (de) * | 2009-04-09 | 2010-07-15 | Siemens Vai Metals Tech Gmbh | Verfahren und vorrichtung zum aufbereiten von warmwalzgut |
| DE102009056262A1 (de) | 2009-12-01 | 2011-06-09 | Sms Siemag Aktiengesellschaft | Verfahren zum Walzen eines Walzguts |
| DE102009056264A1 (de) * | 2009-12-01 | 2011-06-09 | Sms Siemag Aktiengesellschaft | Verfahren zum Walzen eines Walzguts |
| CN102834191B (zh) | 2010-03-31 | 2017-03-29 | 新日铁住金株式会社 | 热轧钢板的制造装置及制造方法 |
| CN102476131A (zh) | 2010-11-26 | 2012-05-30 | 宝山钢铁股份有限公司 | 一种防止高硅带钢断带的冷轧方法 |
| EP2465619A1 (de) | 2010-12-16 | 2012-06-20 | Siemens VAI Metals Technologies GmbH | Verfahren und Vorrichtung zum Aufbringen eines Schmiermittels beim Walzen eines metallischen Walzgutes |
| JP6069877B2 (ja) | 2012-04-19 | 2017-02-01 | Jfeスチール株式会社 | 冷間タンデム圧延機における圧延方法および冷間タンデム圧延機の制御装置 |
| DE102014207859A1 (de) | 2013-04-26 | 2014-10-30 | Sms Siemag Ag | Verfahren und Walzgerüst zum Kaltwalzen von Walzgut |
| DE102016200077A1 (de) | 2015-11-30 | 2017-06-01 | Sms Group Gmbh | Verfahren und System zum Steuern und/oder Regeln einer Erwärmung eines gegossenen oder gewalzten Metallprodukts |
| CN107433284B (zh) | 2016-05-25 | 2019-03-29 | 宝山钢铁股份有限公司 | 一种冷连轧机高速轧制过程的工艺润滑制度优化方法 |
| JP6272412B1 (ja) | 2016-08-18 | 2018-01-31 | 株式会社スクウェア・エニックス | ゲームプログラム、及びゲームシステム |
| CN108284130A (zh) | 2017-01-09 | 2018-07-17 | 宝山钢铁股份有限公司 | 一种冷轧变厚度板材的轧制方法 |
| EP3461566A1 (de) * | 2017-10-02 | 2019-04-03 | Primetals Technologies Austria GmbH | Walzen eines walzguts |
| EP3517228A1 (de) | 2018-01-29 | 2019-07-31 | Primetals Technologies Austria GmbH | Regeln eines walzprozesses |
| CN109622619B (zh) | 2018-12-27 | 2020-07-07 | 武汉乾冶工程技术有限公司 | 冷连轧生产高牌号无取向电工钢的方法及其制品 |
| JP7032006B2 (ja) | 2020-06-18 | 2022-03-08 | 株式会社大一商会 | 遊技機 |
-
2019
- 2019-09-10 EP EP19196307.3A patent/EP3791971A1/de not_active Withdrawn
-
2020
- 2020-09-07 KR KR1020227010961A patent/KR102714779B1/ko active Active
- 2020-09-07 US US17/641,477 patent/US12103061B2/en active Active
- 2020-09-07 WO PCT/EP2020/074901 patent/WO2021048038A1/de not_active Ceased
- 2020-09-07 EP EP20768550.4A patent/EP4028181B1/de active Active
- 2020-09-07 JP JP2022515752A patent/JP7326594B2/ja active Active
- 2020-09-07 CN CN202080063610.XA patent/CN114340809A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021048038A1 (de) | 2021-03-18 |
| CN114340809A (zh) | 2022-04-12 |
| JP7326594B2 (ja) | 2023-08-15 |
| EP4028181B1 (de) | 2023-09-06 |
| EP3791971A1 (de) | 2021-03-17 |
| US12103061B2 (en) | 2024-10-01 |
| JP2022546871A (ja) | 2022-11-09 |
| KR20220062010A (ko) | 2022-05-13 |
| US20220355356A1 (en) | 2022-11-10 |
| KR102714779B1 (ko) | 2024-10-08 |
| EP4028181C0 (de) | 2023-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP4028181B1 (de) | Kaltwalzen eines walzguts in einer walzstrasse mit mehreren walzgerüsten | |
| EP0367967B1 (de) | Verfahren und Vorrichtung zur Kühlung und Schmierung von Walzen und Walzgut beim Kaltwalzen | |
| EP2697001B1 (de) | Steuerverfahren für eine walzstrasse | |
| EP0121148B1 (de) | Verfahren zum Herstellen von Walzband mit hoher Bandprofil- und Bandplanheitsgüte | |
| DE3036997A1 (de) | Verfahren zur steuerung und regelung der temperatur eines werkstueckes waehrend des walzens in einem warmbandwalzwerk | |
| EP0776710A1 (de) | Vorrichtung zur Beeinflussung des Profils von gewalztem Walzband | |
| EP2170535A1 (de) | Verfahren zur einstellung eines zustands eines walzguts, insbesondere eines vorbands | |
| DE202014011231U1 (de) | System für dynamische Reduktionsverschiebung (DSR) zum Regeln einer Temperatur in Tandem-Walzwerken | |
| DE69607534T2 (de) | Verfahren und Vorrichtung zur Steuerung des Ziehens von Walzgut zwischen Walzgerüste | |
| EP4281229B1 (de) | Kaltwalzvorrichtung und verfahren zum geregelten kaltwalzen von aluminiumfolie | |
| DE10110323A1 (de) | Verfahren zur gezielten Einstellung der Oberflächenstruktur von Walzgut beim Kaltnachwalzen in Dressier-Walzgerüsten | |
| DE3303829A1 (de) | Verfahren und vorrichtung zur steuerung eines kontinuierlich arbeitenden walzwerks | |
| DE3109536A1 (de) | "anordnung zum regeln eines quartowalzwerks fuer das metallwalzen" | |
| DE60206851T2 (de) | Warmwalzwerk und warmwalzverfahren | |
| EP0734795B1 (de) | Verfahren zur Dickenvorsteuerung beim Folienwalzen | |
| EP3448592B1 (de) | Verfahren zum walzen eines walzgutes | |
| DE3026229C2 (de) | ||
| EP1907145B1 (de) | Verfahren zum aufbringen eines kühlmittels | |
| EP0054172A2 (de) | Verfahren und Anordnung zum Walzen von spannungsfreiem Walzband | |
| WO2019145079A1 (de) | Regeln eines walzprozesses | |
| EP4249141B1 (de) | Betriebsverfahren für eine walzstrasse | |
| DE19500628B4 (de) | Betriebsverfahren und Walzstraße zur Herstellung von optimal planen Metallbändern | |
| DE102009060828A1 (de) | Walzanlage zum kontinuierlichen Walzen von bandförmigem Walzgut | |
| DE60021220T2 (de) | Vorrichtung und Verfahren zum Walzen von Stabmaterial | |
| EP4599953A1 (de) | Verfahren zur auslaufseitigen bandkühlung an einer reversierwalzanlage für kaltgewalztes metallband |
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: 20220411 |
|
| 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) | ||
| 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: 20230414 |
|
| 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: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502020005169 Country of ref document: DE |
|
| U01 | Request for unitary effect filed |
Effective date: 20231003 |
|
| 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: 20231012 |
|
| 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: 20231207 |
|
| 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: 20230906 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: 20231206 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: 20230906 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: 20231207 |
|
| U20 | Renewal fee for the european patent with unitary effect paid |
Year of fee payment: 4 Effective date: 20240122 |
|
| 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: 20240106 |
|
| 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: 20230906 |
|
| 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: 20230906 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: 20230906 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: 20240106 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: 20230906 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: 20230906 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: 20230906 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R026 Ref document number: 502020005169 Country of ref document: DE |
|
| PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20230906 |
|
| 26 | Opposition filed |
Opponent name: SMS GROUP GMBH Effective date: 20240513 |
|
| PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
| 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: 20230906 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
| 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: 20230907 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230930 |
|
| 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: 20230906 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230907 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230930 |
|
| PLBB | Reply of patent proprietor to notice(s) of opposition received |
Free format text: ORIGINAL CODE: EPIDOSNOBS3 |
|
| U20 | Renewal fee for the european patent with unitary effect paid |
Year of fee payment: 5 Effective date: 20240930 |
|
| PLCK | Communication despatched that opposition was rejected |
Free format text: ORIGINAL CODE: EPIDOSNREJ1 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20240907 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20240907 |
|
| 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; INVALID AB INITIO Effective date: 20200907 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20200907 |
|
| PLBN | Opposition rejected |
Free format text: ORIGINAL CODE: 0009273 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: OPPOSITION REJECTED |
|
| 27O | Opposition rejected |
Effective date: 20250521 |
|
| U20 | Renewal fee for the european patent with unitary effect paid |
Year of fee payment: 6 Effective date: 20250930 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR 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: 20230906 |