EP3002068A1 - Voie de laminage dotée d'une pré-commande fondée sur la modélisation pour des pauses de refroidissement - Google Patents

Voie de laminage dotée d'une pré-commande fondée sur la modélisation pour des pauses de refroidissement Download PDF

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Publication number
EP3002068A1
EP3002068A1 EP14187277.0A EP14187277A EP3002068A1 EP 3002068 A1 EP3002068 A1 EP 3002068A1 EP 14187277 A EP14187277 A EP 14187277A EP 3002068 A1 EP3002068 A1 EP 3002068A1
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EP
European Patent Office
Prior art keywords
rolling
control device
rolled
thermal
time
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.)
Withdrawn
Application number
EP14187277.0A
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German (de)
English (en)
Inventor
Johannes Dr. Dagner
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.)
Primetals Technologies Germany GmbH
Original Assignee
Primetals Technologies Germany GmbH
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Filing date
Publication date
Application filed by Primetals Technologies Germany GmbH filed Critical Primetals Technologies Germany GmbH
Priority to EP14187277.0A priority Critical patent/EP3002068A1/fr
Publication of EP3002068A1 publication Critical patent/EP3002068A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls

Definitions

  • the present invention is further based on a computer program comprising machine code which can be processed by a control device for a rolling train having at least one rolling mill, wherein the processing of the machine code by the control device causes the control device operates the mill train according to such an operating method.
  • the present invention is further based on a control device for a rolling train with at least one rolling stand, wherein the control device is programmed with such a computer program, so that the control device operates the rolling mill in accordance with such an operating method.
  • the present invention is further based on a rolling mill with at least one rolling stand, wherein the rolling train has a control device which operates the rolling mill according to such an operating method.
  • Such a method, the associated control device and the associated rolling train are from the DE 196 18 995 A1 or the corresponding one US 5,855,131 A known.
  • profile and flatness are important quality features of the rolled flat rolled stock. It is known that when rolling a flat rolled stock, the shape of the rolls - in particular of the work rolls - has a considerable influence on the flatness and profile of the rolled rolled stock.
  • the shape of the rolls is influenced (inter alia) by their thermal expansion (thermal crowning) and their wear.
  • the thermal crowning can be actively influenced, above all when the influencing takes place via segmented controllable influencing devices, for example nozzles or nozzle groups.
  • the object of the present invention is to provide means by which the productivity can be increased over the prior art.
  • the initial ballot is related to the time of the investigation.
  • the thermal target influencing of the rolls of the roll stand from the time of determination to an intermediate point in time is predetermined. This can be caused, for example, by the fact that other rolled goods are to be rolled before rolling the rolling stock to be rolled in the roll stand.
  • there is a thermal influence by these rolling goods on the other hand possibly a thermal influence by the influencing device.
  • the thermal influence of the rolling stock is concerned, this must simply be accepted.
  • the thermal influence by the influencing device this is often determined in previous embodiments of the operating method according to the invention for these rolling stock.
  • the output crowning is related to the intermediate point in time, and the control device determines the thermal target influencing of the rolls of the roll stand from the intermediate time to the starting time.
  • the control device should preferably be known as much as possible of the thermal output crowning of the rolls of the roll stand.
  • the control device preferably continuously takes a thermal Istbeeinlung the rolling of the rolling mill and performs the thermal crown using the model of the rolling mill on the basis of the thermal Istbeein kgung continuously.
  • control device determines the start time and the thermal target influence by means of an optimizer.
  • the optimizer may use an SQP algorithm, genetic algorithms, and / or controller-based methods.
  • the control device For determining the start time and the thermal target influencing, the control device generally sets initial values as a rule.
  • the initial values for the start time and / or the thermal target influence as a function of the output crowning of the rolls of the roll stand, the geometry of the rolling stock to be rolled, material properties of the rolling stock to be rolled, a temperature of the rolling stock to be rolled and / or a temperature of the rolls of the rolling mill determined.
  • the control device When determining the output crowning, the control device preferably takes into account the geometry of a rolling stock rolled before the rolling stock to be rolled, material properties of the rolling stock rolled before the rolling stock to be rolled, and / or a temperature of the rolling stock rolled before the rolling stock to be rolled. This approach leads to an even better first approach. This is especially true if the rolling stock rolled in front of the rolling stock to be rolled is not yet rolled at the time of determination, for example, because it is being rolled until the intermediate time.
  • the controller uses an initializer to determine the initial start and / or target thermal values.
  • the initial value transmitter uses a multi-dimensional table, a self-learning system and / or a simplified model compared to the model, under the use of which the control device determines the start time and the thermal target influence of the rolls up to the start time.
  • the procedure according to the invention leads to even better results when the control device determines a starting time based on the determined starting time and controls a device upstream of the rolling mill such that the rolling stock to be rolled exits the upstream device at the starting time.
  • the controller may output the start time to the operator of the mill train.
  • the upstream device may for example be a furnace in which the rolling stock to be rolled is heated prior to rolling.
  • the object is further achieved by a computer program having the features of claim 13.
  • the execution of the machine code by the control device causes the control device to operate the rolling train in accordance with an operating method according to the invention.
  • control device for a rolling train with the features of claim 14.
  • the control device is programmed with a computer program according to the invention, so that the control device operates the rolling train in accordance with an operating method according to the invention.
  • the rolling train has a control device according to the invention which operates the rolling train in accordance with an operating method according to the invention.
  • a rolling train comprises at least one rolling mill 1.
  • the rolling mills 1 are, for example, components of a finishing train 2.
  • a plurality of flat rolled goods 3 are sequentially rolled successively.
  • the rolling of the rolling stock 3 in the rolling train - in particular in the rolling stands 1 - is carried out under the control of a control device 4 of the rolling train.
  • At least one of the rolling stands 1 of the finishing train 2 corresponds to the rolling mill 1 of the present invention.
  • the rolling train additionally comprises further units, for example a roughing 5 and / or a furnace 6.
  • the roughing train 5 is present, the flat rolled goods 3 are rolled before rolling in the rolling stands 1 of the finishing train 2 in the roughing 5, often reversing rolled.
  • the furnace 6 is present, the rolling stock 3 before rolling in rolling stands 1 of the finishing train 2 - if present, even before rolling in the roughing 5 - heated in the furnace 6 to rolling temperature.
  • the rolled goods 3 are made of metal, for example aluminum or an aluminum alloy or steel.
  • the control device 4 is programmed with a computer program 7. Due to the programming with the computer program 7, the control device 4 operates the rolling mill in accordance with an operating method which will be explained in more detail below.
  • the computer program 7 comprises machine code 8 which can be processed by the control device 4. The execution of the machine code 8 by the control device 4 thus causes the control device 4 to operate the rolling train according to such an operating method.
  • the computer program 7 can be supplied to the control device 4 in any desired manner.
  • a data carrier 9 is shown, on which the computer program 7 is stored in (exclusively) machine-readable form, for example in electronic form.
  • the representation of the data carrier 9 as a USB memory stick is purely exemplary and not restrictive.
  • the rolled goods 3 often have mutually different properties.
  • the rolled goods 3 may differ, for example, before rolling in their widths, in their thicknesses, their thickness profiles and / or in their temperatures.
  • the rolled goods can differ in their chemical compositions and other material properties.
  • FIG. 2 a thermal crown B of the rolls 10 of the at least one roll stand 1. This is shown in FIG. 2 only for a single roller 10 of the at least one rolling mill 1. In principle However, this also in an analogous manner for the other rolls 10 of the roll stand 1. The extent of the crown B is in FIG. 2 clearly exaggerated for the sake of clarity. An effective width of the thermal crown B is approximately equal to the width of the rolled material 3.
  • transition areas of the thermal crown B would be as shown in FIG. 3 lie within a range covered by the now rolled rolling stock 3 until the thermal crown B has settled due to the rolling of the now rolled flat rolled stock 3 on the now rolled rolled stock 3. If this procedure were taken, therefore, the now rolled rolled stock 3 would initially be rolled only with a thermal crown B, which corresponds to the width of the rolled stock 3 rolled first. Such rolling would usually result in prescribed profile and flatness values would not be met. In extreme cases, this can even lead to a flat rolling 3 can not be rolled because of emerging medium waves or due to emerging edge cracks.
  • This crowning is hereinafter referred to as target crowning and provided with the reference symbol B *.
  • the rolls 10 of the roll stand 1 should already have this target crown B * when starting to roll the flat rolled stock 3 to be rolled later in the roll stand 1.
  • the flat rolling stock 3 to be rolled continues to be heated in the furnace 6, while another flat rolling stock 3 is already rolled in the roughing mill 5 and another rolling stock 3 is already rolled in the rolling stands 1 of the finishing train 2.
  • the flat rolling stock 3 located in the furnace 6 is the flat rolling stock for which the target crown B * is to be set. This flat rolling stock 3 is subsequently supplemented by the letter a to distinguish it from other rolling stock 3, that is to say referred to as rolling stock 3 a.
  • the rolling stock 3, which is located in the finishing train 2 at this time, is referred to as rolling 3c.
  • the control device 4 the rolled goods to be rolled 3 including their geometry and their sequence are known. Due to the geometry of the rolling stock 3a, the control device 4 also knows which target crown B * must have the rolls 10 of the rolling stand 1 when the rolling stock 3a is being rolled. The control device 4 therefore carries the following in connection with FIG. 4 explained operating procedures.
  • the controller 4 implements a model 11 in a step S1 (see FIG FIG. 1 ) of the rolling mill.
  • the model 11 comprises at least one model of the rolling stand 1 by means of which the thermal crown B, including the crown caused by wear, can be determined. It often includes further models, for example a model for tracking the temperature of the flat rolled products 3 within the rolling train, for example from the exit of the furnace 6.
  • the model 11 may also include a material flow model and / or a forming model for determining the rolling conditions in the rolling stand 1.
  • the model 11 may optionally model the oven 6 with. Furthermore, it is possible that the model 11 can estimate the cycle time of a rolling stock 3 through the rolling train on the basis of the given pass plan and given strategy data.
  • the control device 4 is in particular able to determine the thermal crown B of the rolls 10 of the roll stand 1.
  • Suitable models 11 are known to those skilled in the art. Purely by way of example is on the WO 2013/127 982 A1 directed. The model described there indeed models the heat flow and the resulting thermal crowning in a casting roll. However, the model described therein can also be used in an analogous manner for the rolls 10 of the roll stand 1.
  • a step S2 the control device 4 becomes aware of the target crown B * for the rolling stock 3a.
  • the control device 4 determines an initial time t1 * and a thermal target influence K * in a step S3 using the model 11 of the rolling train. of the rolls 10.
  • the desired influence K * is determined until the start time t1 *.
  • the determination is made on the basis of a given thermal output crown B0 of the rolls 10 of the roll stand 1 and the target crown B *.
  • the determination takes place in such a way that the thermal crown B of the rolls 10 of the roll stand 1, which results at the start time t0, as shown in FIG. 6 lies in a predetermined Epsilonschlauch 12 to the Zielballmaschine B *. It continues to be such that the start time t0 is as early as possible.
  • the step S3 will be explained later in more detail.
  • step S4 the control device 4 controls a transporting device 13 for transporting the flat rolling stock 3a-for example a roller table or the oven 6 -on.
  • the control takes place in such a way that rolling of the flat rolling stock 3 a in the rolling stand 1 is started at the determined starting time t 1 *.
  • step S5 the controller 4 outputs the start time t1 * to an operator 14 of the rolling mill. Since of the steps S4 and S5 - at least in the rule - only one available is, steps S4 and S5 are in FIG. 4 shown side by side and dashed.
  • the control device 4 controls an influencing device 15 in a step S6.
  • the influencing device 15 can - see FIG. 7 -
  • the thermal crown B of the rollers 10 of the roll stand 1 are affected.
  • the influencing device 15 may be formed as a number of individual or group-wise controllable nozzles 16, by means of which a cooling medium - usually water or an oil-water mixture - is applied to the rollers 10 of the roll stand 1.
  • the number of nozzles 16 is - viewed transversely over the respective roller 10 - usually between 20 and 40.
  • the nozzles 16 upstream valves 16 ' can either be switched on and off or be continuously adjustable.
  • the control of the influencing device 15 takes place in accordance with the determined thermal target influencing K * and up to the starting time t1 *.
  • the control device 4 it is again possible for the control device 4 to output corresponding settings of the influencing device 15 to the operator 14 of the rolling train in a step S7. Since only one of the steps S6 and S7 is present, at least as a rule, the steps S6 and S7 are analogous to the steps S4 and S5 in FIG FIG. 4 shown side by side and dashed.
  • the flat rolling stock 3c is usually already rolled in the rolling stands 1 of the finishing train 2 at the determination time t0 at which the control device 4 determines the thermal target influence K *.
  • the thermal influence K * must be set in accordance with the requirements for the flat rolling stock 3c.
  • the flat rolling stock 3b is usually already rolled. The flat rolling 3b is indeed after the flat rolling 3c, but before the flat rolling 3a in the rolling stands 1 of Finish mill 2 rolled.
  • the thermal crown B of the rolls 10 of the rolling stand 1 must be set according to the requirements of the flat rolled stock 3b become.
  • the thermal influence K * must be set in accordance with the requirements for the flat rolled stock 3b.
  • the control device 4 determines the crowning B using the model 11 of the rolling train.
  • the determination takes place in the context of the step S3 as a prediction.
  • a soft sensor As is well known to those skilled in the art of rolling mill engineering, a modeling of a unit is one in which a different quantity is determined from measured quantities by means of a model which can not or at least can not readily be measured.
  • a soft sensor is the already mentioned determination of the crown B of the rollers 10.
  • the crown B can not be measured.
  • a thermal actual influencing K of the rolls 10 of the roll stand 1 can be detected, in particular the control of the nozzles 16 of the influencing device 15. It is possible to detect the thermal actual influencing K continuously and feed it to the control device 4. This can then continuously track the crown B at the determination time t0 using the model 11.
  • the output crown B0 is related to the detection timing t0, the crown B thus determined is the output crown B0.
  • the controller 4 can determine the output crown B0 based on the crown B at the determination time t0 based on the predetermined thermal influence K * from the detection time t0 to the intermediate time t2 * ,
  • the control device 4 implements according to FIG. 8 an optimizer 17, by means of which the control device 4 determines the start time t1 * and the thermal target influence K *.
  • the optimizer 17 determines and evaluates the deviations of the expected crown B resulting from the thermal target influence K * from the target crown B *. Furthermore, due to the deviations, the optimizer 17 determines an optimized thermal target influencing K *, preferably also an optimized starting time t1 *.
  • Variable parameters for the thermal target influencing K * are, for example, the coolant quantities of all or part of the coolant circuits. Another variable parameter may be the temperature be the cooling medium. Under certain circumstances, the optimizer 17 can also vary the starting time t1 *.
  • the optimizer 17 can according to FIG. 7 For example, use an SQP algorithm 17a. Alternatively or additionally, the optimizer 17 according to FIG. 7 use genetic algorithms 17b. Alternatively or additionally, the optimizer 17 according to FIG. 7 use controller-based methods 17c.
  • the optimizer 17 usually employs a so-called cost function and minimizes the cost function by varying the variable parameters. It is possible that the optimizer 17 directly and simultaneously optimizes both the start time t1 * and the thermal target influence K *. If this is not possible or too expensive, the controller implements the optimizer 17 according to FIG. 9 in the following way:
  • step S11 the control device 4 sets a flag F to the value 0. Then, in a step S12, the control device 4 sets provisional values for the starting time t1 * and the thermal target influencing K *.
  • step S13 the control device 4 optimizes the applied thermal target influencing K * by means of the optimizer 17. The optimization takes place in such a way that the actual crown B resulting at the scheduled start time t1 * is approximated as well as possible to the target crown B *.
  • step S13 is known and familiar to those skilled in the art.
  • step S14 the control device 4 checks whether the thermal crown B of the rolls 10 of the roll stand 1, determined in step S13, lies within the epsilon tube 12 about the target crown B *. If this is not the case, the control device 4 proceeds to a step S15. In step S15, the controller 4 increments the scheduled start time t1 *. Then, the controller 4 sets the flag F to the value 1 in a step S16. Then, the controller 4 returns to the step S13.
  • step S17 the control device 4 checks whether the flag F has the value 1. If this is not the case, the control device 4 proceeds to a step S18. In step S18, the controller 4 decrements the scheduled start time t1 *.
  • the procedure of FIG. 9 completed.
  • the control device 4 takes over the last scheduled start time t1 * and the last optimized thermal target influence K * as final values.
  • step S12 of FIG. 8 set values - for optimal results.
  • the values already set for the first time t1 * and the thermal target influencing K * are already optimal or at least almost optimal.
  • the controller 4 are therefore according to FIG.
  • the geometry of the rolling stock 3a to be rolled (in particular its width b3a and its thickness d3a), material properties M3a of the rolling stock 3a to be rolled, a temperature T3a of the rolled stock 3a to be rolled and / or a temperature T10 of the rolls 10 of the rolling stand 1 are supplied.
  • the control device 4 determines the initial values for the starting time t1 * and the thermal target influencing K *. These values are then used by the control device 4 as output values during the subsequent optimization.
  • the control device 4 takes into account the determination of the output crown B0 as shown in FIG FIG. 10 the geometry of a rolling stock 3b rolled in front of the rolling stock 3a to be rolled, in particular its width b3b and its thickness d3b, material properties M3b of the rolling stock 3b rolled before the rolling stock 3a to be rolled and / or a temperature T3b of the rolling stock 3b rolled before the rolling stock 3a to be rolled ,
  • the control device 4 uses for determining the initial values for the starting time t1 * and / or the thermal target influence K * according to FIG. 10 an initial value transmitter 18.
  • the initial value transmitter 18 can be used according to FIG. 11 Use a multidimensional table 18a.
  • the initial value transmitter 18 can according to FIG. 11 use a self-learning system 18b, such as a neural network.
  • the initial value transmitter 18 can according to FIG. 11 to use a model 18c.
  • the model 18c is simplified over the model 11, under the use of which the control device 4 determines the start time t1 * and the thermal target influence K * of the rollers 10 up to the start time t1 *.
  • the model 11 may be faulty.
  • the controller 4 therefore stores according to FIG. 12 in a step S21, an actual start time t1 and an actual actual influence K applied to the rollers 10 of the rolling mill 1 until the initial time t1.
  • the control device 4 acquires a profile PR and / or a flatness PL of the rolled rolled stock 3a.
  • Appropriate measuring devices in particular segmented tension measuring rollers
  • the control device 4 receives target values PR *, PL * for the profile PR and / or the flatness PL.
  • the step S23 is usually not as an independent step in the sequence according to FIG. 12 available. Rather, it is usually in the context of step S2 of FIG. 4 implemented.
  • the Presentation as part of FIG. 12 however, facilitates the understanding of the approach of FIG. 12 ,
  • a step S24 the control device 4 compares the detected profile PR and / or the detected flatness PL with the target values PR *, PL *. If the detected profile PR and / or the detected flatness PL coincide with the target values PR *, PL * (within predetermined tolerances), the control device 4 proceeds to a step S25.
  • step S25 the control device 4 supplies the actual influencing K and the initial time t1 to the initial value transmitter 18.
  • the initial value generator 18 is also supplied with the relevant quantities, by means of which the initial value transmitter 18 has previously determined the starting time t1 * and the thermal target influencing K * for the rolling stock 3a.
  • the initial value transmitter 18 is thus able to broaden its knowledge base, on the basis of which it determines the start times t1 * and thermal desired influences K *.
  • the control device 4 proceeds to a step S26.
  • the control device 4 performs at least one parameter P of the model 11.
  • the parameter P may be, for example, a heat transfer coefficient.
  • the start time t1 * in turn has repercussions on a start time t3 * (see FIG. 5 ), to which the rolling stock 3a to be rolled from a rolling mill 1 of the finishing train 2 upstream device 5, 6 - for example, from the oven 6 - should emerge.
  • the control device 4 therefore determines according to FIG. 13 in a step S31 based on the start time t1 * the associated start time t3 *.
  • the control device 4 controls the upstream device 5, 6 accordingly, so that the rolling stock 3a to be rolled exits the upstream device 5, 6 at the start time t3 *.
  • step S32 there may be a step S33, in which the control device 4 outputs the starting time t3 * to the operator 14 of the rolling mill. Since only one of the steps S32 and S33 is present, at least as a rule, the steps S32 and S33 in FIG FIG. 13 shown side by side and dashed.
  • the correction may consist in that the operator 14 always prescribes a longer heating in the furnace 6 or a rolling of the rolling stock 3 in the roughing 5 with more than the originally set stitches.
  • the cause of such corrections may be systematic deviations of properties of the real rolling stock 3 from corresponding expected properties.
  • Such control interventions have (among other things) the consequence that the starting times t1 * determined by the control device 4 for the individual rolling goods 3 are always systematically shifted in the same direction, for example later than planned.
  • Such a daily form of the rolling train can be taken into account in the context of the present invention. This will be described below in connection with FIG. 14 explained in more detail.
  • FIG. 14 stores the control device 4 first in a step S36 for each rolling stock 3 to be rolled the determined starting time t1 * and the determined target influence K *.
  • the control device 4 acquires the associated actual start times t1 and the associated actual actual influences K.
  • the control device 4 determines the deviations of the determined start times t1 * and the determined target influences K * from the associated actual start times t1 and the associated actual start times t1 actual Istbeein bathungen K.
  • the control device 4 checks whether there are rectified deviations within the sequence, so for example always the actual Actual influence K is greater than the determined target influencing K * or always the actual starting time t1 after the determined starting time t1 *.
  • control device 4 determines in a step S40 correction values for future starting times t1 * to be determined in the future and desired influences K * to be determined in the future. These correction variables are taken into account by the control device 4 for rolling stock 3 to be rolled in the future as part of the execution of step S3.
  • the present invention thus relates to the following facts:
  • a flat rolling stock 3 a is rolled under the control of a control device 4.
  • the control device is known to have a target crown B *, which should comprise the rolls 10 of the roll stand 1, when rolling of the flat rolled stock 3a in the roll stand 1 is started.
  • the control device 4 implements a model 11 of the rolling train.
  • the control device 4 determines a starting time t1 * and a thermal target influence K * using the model 11 on the basis of a given thermal output crown B0 of the rolls 10 of the roll stand 1. of the rollers 10 until the initial time t1 *.
  • the control device 4 determines the starting time t1 * and the thermal target influencing K * of the rolls 10 to the initial time t1 * such that the thermal crown B of the rolls 10 of the rolling stand 1 in a predetermined epsilon tube 12 at the initial time t1 * lies around the target crown B * and the starting time t1 * is as early as possible ,
  • the present invention has many advantages.
  • a maximization of the productivity of the rolling train is possible in a simple manner. Nevertheless, it can be reliably ensured that predetermined target variables PR *, PL * for profile PR and flatness PL of the rolled goods 3 are maintained.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
EP14187277.0A 2014-10-01 2014-10-01 Voie de laminage dotée d'une pré-commande fondée sur la modélisation pour des pauses de refroidissement Withdrawn EP3002068A1 (fr)

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Application Number Priority Date Filing Date Title
EP14187277.0A EP3002068A1 (fr) 2014-10-01 2014-10-01 Voie de laminage dotée d'une pré-commande fondée sur la modélisation pour des pauses de refroidissement

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Application Number Priority Date Filing Date Title
EP14187277.0A EP3002068A1 (fr) 2014-10-01 2014-10-01 Voie de laminage dotée d'une pré-commande fondée sur la modélisation pour des pauses de refroidissement

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EP3002068A1 true EP3002068A1 (fr) 2016-04-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112934978A (zh) * 2019-12-10 2021-06-11 宝山钢铁股份有限公司 一种二次冷轧机组前机架工作辊热凸度控制的工艺方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5462153A (en) * 1977-10-26 1979-05-18 Ishikawajima Harima Heavy Ind Co Ltd Crown controller for rolling roll
DE19618995A1 (de) 1996-05-10 1997-11-13 Siemens Ag Verfahren und Einrichtung zur Beeinflussung des Profils eines Walzbandes
EP0998991A2 (fr) * 1998-11-04 2000-05-10 Sms Schloemann-Siemag Aktiengesellschaft Procédé d'exploitation pour une cage de laminoir d'un train de laminage
WO2013127982A1 (fr) 2012-03-01 2013-09-06 Siemens Aktiengesellschaft Modélisation d'une installation de coulée en continu

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5462153A (en) * 1977-10-26 1979-05-18 Ishikawajima Harima Heavy Ind Co Ltd Crown controller for rolling roll
DE19618995A1 (de) 1996-05-10 1997-11-13 Siemens Ag Verfahren und Einrichtung zur Beeinflussung des Profils eines Walzbandes
US5855131A (en) 1996-05-10 1999-01-05 Siemens Aktiengesellschaft Process and device for influencing a profile of a rolled strip
EP0998991A2 (fr) * 1998-11-04 2000-05-10 Sms Schloemann-Siemag Aktiengesellschaft Procédé d'exploitation pour une cage de laminoir d'un train de laminage
WO2013127982A1 (fr) 2012-03-01 2013-09-06 Siemens Aktiengesellschaft Modélisation d'une installation de coulée en continu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112934978A (zh) * 2019-12-10 2021-06-11 宝山钢铁股份有限公司 一种二次冷轧机组前机架工作辊热凸度控制的工艺方法

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