WO2009153126A1 - Konti-walzstrasse mit ein- und/oder ausgliedern von walzgerüsten im laufenden betrieb - Google Patents
Konti-walzstrasse mit ein- und/oder ausgliedern von walzgerüsten im laufenden betrieb Download PDFInfo
- Publication number
- WO2009153126A1 WO2009153126A1 PCT/EP2009/056225 EP2009056225W WO2009153126A1 WO 2009153126 A1 WO2009153126 A1 WO 2009153126A1 EP 2009056225 W EP2009056225 W EP 2009056225W WO 2009153126 A1 WO2009153126 A1 WO 2009153126A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rolling
- stand
- mill
- control device
- rolling mill
- Prior art date
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 458
- 230000010354 integration Effects 0.000 title description 5
- 230000002123 temporal effect Effects 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 37
- 238000011017 operating method Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 22
- 238000011144 upstream manufacturing Methods 0.000 claims description 18
- 238000012946 outsourcing Methods 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000010348 incorporation Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005097 cold rolling Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- B21B37/58—Roll-force control; Roll-gap control
-
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B2013/003—Inactive rolling stands
Definitions
- the present invention relates to operating methods for a continuous rolling mill comprising a number of rolling stands wherein rolling stock passing through the continuous rolling mill is successively rolled in a plurality of the rolling stands so that the rolling stock has predetermined end properties when leaving the rolling line.
- the present invention further relates to a computer program comprising machine code which is directly executable by a control device of a continuous rolling mill and whose execution by the control means causes the control means to operate the continuous rolling mill according to such an operating method.
- the present invention further relates to a data carrier on which such a computer program is stored in machine-readable form.
- the present invention further relates to a control device of a continuous rolling mill comprising such
- Computer program is programmed so that the control device operates the continuous rolling mill according to an operating method of the type explained above.
- the present invention relates to a continuous rolling mill with a number of rolling stands and a control device of the type described above, wherein the rolling stands are controlled by the control device.
- rolling stock In continuous rolling mills, rolling stock should be rolled as smoothly as possible (just continuously). Therefore, on the input side of the continuous rolling mill, individual coils are attached to one another and, as a rule, connected by welding. This procedure is taken in particular during cold rolling of sheet metal, ie a strip-shaped rolling stock.
- the object of the present invention is to provide such possibilities.
- a control device of the continuous rolling mill controls the rolling mill to be split-off in such a way that the roll-out Rolling mill is completely relieved according to a defined time relief curve, so that the ausliedernde rolling stand during the relief curve rolls a certain section of the rolling stock,
- control device controls at least one other of the rolling mills of the continuous rolling train in such a way that the at least one other rolling stand is loaded in accordance with a defined temporal loading course, wherein the unloading course of the rolling mill to be split off and the
- Loading course of the at least one other rolling stand are coordinated such that during the load curve, the at least one other rolling mill on and rolling the same portion of the rolling stock as the rolling stock to be separated out during the relief process and that the end properties of the rolled stock are preserved,
- the controller controls a peripheral speed of work rolls of the spin-rolling stand up to its complete relieving in such a way that an outflow speed of the rolling stock caused by the rolling of the rolling stock in the rolling mill to be split-off corresponds at any time with a predetermined target outfeed speed
- the controller controls the ausliedernde roll stand after its complete unloading while maintaining a correspondence of the peripheral speed of the work rolls with the target discharge speed such that the work rolls of the ausliedernden mill stand from
- the at least one other roll stand it is possible for the at least one other roll stand to be arranged upstream of the roll stand to be removed. However, it is also possible for the at least one other roll stand to be arranged downstream of the roll stand to be removed.
- control device loads a single other rolling stand to compensate for the relief of the auszolrectden mill stand.
- control device for compensating for the relief of the auszolister mill stand incorporates the at least one other rolling stand in the continuous rolling mill. In this case, so takes place a rolling stand change.
- the control device for relieving the ausliedernden mill stand a nip of ausliedernden mill by appropriate predetermining a Geschwindigtechniksrelation upstream of the ausliedernden rolling mill upstream, the rolling stock also rolling mill stand of Konti-rolling mill in conjunction with a on the employment of the ausliedernden Rolling mill acting tension control for a in the ausliedernde rolling mill incoming section of the rolling stock leads.
- control device for relieving the auszolister rolling stand a roll gap of the ausliedernden rolling mill position-controlled or force-controlled.
- control device If the control device carries out a positional or force control of the rolling mill to be split-off, it is possible for the control device to generate a draft prevailing in a section of the rolling stock entering the rolling mill to be dismantled during the unloading of the rolling stand by tracking the peripheral speed the work rolls of the ausliederernden mill stands regulates.
- the control device preferably takes into account the tracking of the peripheral speed of the work rolls of the roll stand to be split-off in at least one of the parts to be removed Rolling mill downstream, the rolling stock also rolling mill stand of Konti rolling mill.
- control device may regulate a train prevailing in a section of the rolling stock that is to be taken apart from the rolling stock to be separated by tracking a peripheral speed of work rolls of a roll stand immediately preceding the roll stand to be rolled, also rolling the rolling stand of the continuous rolling mill .
- control device preferably takes into account the tracking of the peripheral speed of the work rolls of the rolling mill immediately preceding the roll-outs to be rolled rolling mill in at least one of the ausliedernden roll indirectly upstream, rolling also rolling mill stand of Konti-rolling mill.
- the bumpless incorporation of a roll stand is essentially inverse to the bumpless outsourcing of a roll stand. Insofar as it concerns the bumpless incorporation of a roll stand not rolling the rolling stock into the continuous rolling train during the rolling of the rolling stock, it is therefore provided according to the invention that the following measures are taken during the rolling of the rolling stock:
- a control device of the continuous rolling mill controls the rolling mill to be incorporated such that a peripheral speed of work rolls of the rolling mill to be incorporated corresponds to a target discharge speed of the rolling stock at the location of the rolling mill to be incorporated, and then controls the rolling mill to be incorporated such that the work rolls are set against the rolling stock but the rolling stock in the roll stand to be integrated is not yet rolled, the control unit controls the roll stand to be incorporated after setting the work rolls of the roll stand to be integrated into the rolling stock in such a way that the roll stand to be incorporated is loaded load curve, so that the dormitoredernde rolling mill during the load course rolls a certain section of the rolling stock,
- the control device controls at least one other of the rolling mills of Konti-rolling mill such that the at least one other rolling stand is relieved in a defined time relief curve, the load profile of comfortablygliedernden rolling stand and the relief curve of at least one other rolling mill are coordinated such that during the unloading process, the at least one other rolling mill rolls in the same section of the rolling stock as the rolling mill to be integrated during the loading process and that the final properties of the rolling stock are preserved, the control device controls the peripheral speed of the work rolls of the rolling mill to be incorporated from the loading such that a by the rolling of the rolled stock in the roll stand to be incorporated, the outlet speed of the rolling stock at the location of the roll stand to be incorporated corresponds at all times to the target discharge speed.
- the term “local simultaneity” is used, the term “locally simultaneous” being understood in the same sense as when outsourcing a rolling stand from the continuous rolling mill.
- the at least one other roll stand is arranged upstream of the rolling mill to be incorporated.
- the at least one other rolling stand is arranged downstream of the rolling mill to be incorporated.
- control device relieves a single other rolling stand to compensate for the load of the rolling mill to be incorporated.
- ausliedernden rolling stand Analogous to relieving a ausliedernden rolling stand here the statement is to be understood such that the By reducing theassigliedernden rolling stand occurring Stichab farming leads to a corresponding reduction in the loss of a single other unloaded mill stand.
- control device for compensating the load of the rolling mill to be incorporated divides the at least one other roll stand from the continuous rolling mill.
- the control device for loading the rolling mill to be incorporated comprises a rolling gap of the rolling mill to be incorporated by correspondingly specifying a speed relation relative to a rolling stand of the continuous rolling mill which rolls the rolling stock and which rolls the rolling stock in conjunction with a tension control acting on the insertion of the roll stand to be incorporated for a section of the rolling stock entering the slab to be incorporated.
- the control device for loading the contemplatgliedernden rolling stand a roll gap of comfortably tilting or force-controlled.
- the control device controls a train in a rolling into the Crugliedernde section of the rolling stock during the loading of Consgliedernden roll stand by tracking the peripheral speed of the work rolls of Consgliedernden mill stand.
- the control device preferably takes into account the tracking of the peripheral speed of the work rolls of the moving roll stand in at least one roll stand of the continuous rolling mill which is arranged downstream of the roll mill to be incorporated.
- control device it is possible for the control device to have a train which rests in a section of the rolling stock to be incorporated into the rolling stock to be incorporated by loading a peripheral speed of work rolls of a roll stand of the continuous rolling mill rolling the rolling stock to be integrated into the rolling mill. Walz Nos.
- the control device preferably takes into account the tracking of the peripheral speed of the work rolls of the roll to be integrated directly into the rolling mill rolling mill rolling in at least one of the rolling mill devisgliedernden indirectly upstream, the rolling stock also rolling mill stand of the continuous rolling mill.
- the computer program according to the invention has machine code whose execution by the control device causes the control device to operate the continuous rolling mill in accordance with an operating method according to the invention.
- Such a computer program is stored on the data carrier in machine-readable form.
- the control device of the continuous rolling mill is programmed with a computer program according to the invention.
- the continuous rolling mill has such a control device.
- FIGS. 2 to 6 are flowcharts
- a continuous rolling train has a number of rolling stands 1, 1 ', 1 ", which show only work rolls 3, 3', 3" of the rolling stands 1, 1 ', 1 " 1, 1 ', 1 ", however, may comprise further rolls, for example back-up rolls and intermediate rolls
- a rolling stock 2 passes through the continuous rolling mill 2.
- the rolling stock 2 is strip-shaped, for example a sheet metal exhibit .
- the rolled stock 2 is rolled successively in several of the rolling mills 1, 1 ', 1 "of the continuous rolling train as it passes through the continuous rolling mill., In this case, cold rolling of the rolled stock 2 is generally carried out. Due to the rolling of the rolling stock 2, the rolling stock 2 has predetermined final properties when leaving the continuous rolling line, for example predetermined end dimensions and a predetermined surface finish (in particular surface roughness) Initial characteristics of the rolled stock 2 are the properties that the rolled stock 2 has on entering the continuous rolling mill.
- the rolling stock 2 it is possible for the rolling stock 2 to be rolled in all the rolling stands 1, 1 ', 1 "of the continuous rolling mill, but the rolling stand 1' is not engaged as shown in Figure 1.
- the working rolls 3 'of this rolling stand 1' are thus, it will be described below, inter alia, how the roll stand 1 'can be incorporated smoothly into the continuous rolling mill during ongoing operation of the continuous rolling train (ie while the rolling stock 2 is being rolled in the continuous rolling mill). It will also be described how the rolling stand 1 ", which is engaged according to FIG. 1, can be separated out of the continuous rolling mill during the ongoing operation of the continuous rolling train.
- the roll stand 1 'to be incorporated can, as seen in the running direction x of the rolled stock 2, alternatively be arranged in front of or behind the roll stand 1 "to be taken out
- the continuous rolling line can also have more or fewer rolling stands 1, 1', 1" instead of six rolling stands.
- the continuous rolling mill has a control device 4 which controls the rolling stands 1, 1 ', 1 ", ie the control device 4 determines how the continuous rolling mill is operated from, with the controller 4 is programmed.
- the computer program 5 has according to FIG. 1 machine code 6, which can be executed directly by the control device 4.
- the execution of the machine code 6 by the control device 4 causes the control device 4 to operate the continuous rolling mill in accordance with modes of operation which will be explained in more detail below in connection with the further FIG.
- the computer program 5 can be supplied to the control device 4 in various ways.
- the computer-computer connection 7 can be, for example, the World Wide Web or a local computer network (LAN).
- the computer program 5 can be supplied to the control device 4 via a data carrier 8, on which the computer program 5 is stored in machine-readable form-usually digital.
- a CD-ROM is shown schematically in FIG. 1 as a data carrier 8.
- controller 4 controls the continuous rolling line according to an operating method which will be described below in conjunction with FIG.
- the control device 4 checks whether one of the rolling stands 1, 1 ', 1 "is to be outsourced in a step S1. For example, the control device 4 can receive a corresponding input from an operator 9 for this purpose.
- control device 4 checks in steps S3 and S4 whether one of the rolling stands 1, 1 ', 1 "in the Konti-
- the control device 4 determines in steps S5 or S6 which of the rolling stands 1, 1 ', 1 "is to be integrated in. Again, a corresponding input of the operator 9 is possible.
- step S7 a roll stand change takes place, ie the integration of the roll stand 1 'to be integrated in and the locally simultaneous removal (see above) of the roll stand 1 "to be split.)
- step S8 the outsourcing rolling stand 1" takes place.
- step S9 incorporation of the roll stand 1 'to be integrated takes place.
- step S10 a normal rolling operation is carried out, as is generally known for conventional rolling mills.
- step S8 that is to say for the outsourcing of the roll stand 1 "to be removed, without the simultaneous integration of another roll stand 1 ', the following is carried out as shown in FIG. 4:
- step Sil the control device 4 begins to relieve the roll stand 1 "to be dismantled, while locally the control device 4 starts to load at least one other rolling stand 1, 1 'in step S.
- the rolling stand 1 ' is not loaded, it is (theoretically) possible to load the rolling stand 1', which is not yet loaded at the beginning, but generally only the other rolling stands 1 already in mesh and rolling the rolling stock 2 will be loaded loaded.
- a step S12 the control device 4 continues the unloading of the roll stand 1 "to be split-off according to a defined time relief curve
- the control device 4 controls a peripheral speed vU" of the work rolls 3 "of the roll stand 1" to be split-off such that a discharge speed v "of the Rolling stock 2, which is caused by the rolling of the rolling stock 2 in the ausliedernden mill stand 1 ", at any time with a predetermined target discharge speed v" * corresponds to the target discharge speed v "* can be either temporally constant or temporally variable.
- control device 4 takes into account in particular the change in the pre-straightening which results in the roll stand 1" to be removed by relieving the roll stand 1 "to be split
- Appropriate procedure is known per se, for example, from the already mentioned US 2008/060403 Al.
- control device 4 continues the loading of the at least one other WaIs scaffold 1, 1 'in a step S13 according to a defined temporal load curve.
- peripheral speeds vU, vU 'of the work rolls 3, 3' of the corresponding rolling mills 1, 1 ' are always determined according to the changing pre-hurry in the respective rolling stand 1, 1', so that respective local exit speeds v, v 'with a respective Target discharge speed v *, v '* correspond.
- step S14 the control device 4 checks whether the unloading of the roll stand 1 "to be removed is already complete. If this is not the case, the control device 4 returns to step S12, ie sets the unloading of the roll stand 1" to be taken off hereby corresponding loads of at least one other rolling mill 1, 1 'away.
- step S15 the control device 4 drives the rolling stand 1" to be taken out such that the correspondence of the peripheral speed vU “of the work rolls 3" of the rolling stand to be split 1 "with the target discharge speed v" * is maintained. Then, the control device 4 controls the ausliedernde mill stand 1 "such that the work rolls 3" of the spin-off rolling stand 1 "from Walzgut 2 are lifted. After lifting off the work rolls 3 "of the spin-off roll stand 1", the control device 4 sets the roll stand 1 "to be split-off in a step S17.
- the additional load occurring is usually distributed to several other rolling mills 1. In individual cases, however, it is possible for the control device 4 to load only a single other roll stand 1 within the framework of the execution of the method of FIG. 4.
- the control device 4 controls the roll stand 1 'to be incorporated in a step S21 in such a way that a peripheral speed vU' of the work rolls 3 'of the roll stand 1' to be incorporated corresponds to a set exit speed v '* of the rolled stock 2 at the location of the roll stand 1' to be integrated.
- the control device 4 then controls the roll stand 1 'to be integrated in a step S22 in such a way that the work rolls 3' of the roll stand 1 'to be incorporated are placed against the rolling stock 2, the rolling stock 2 is placed in the one zugliedernden mill stand 1 'but not yet rolled.
- the work rolls 3 'of the contemplatgliedernden mill stand 1' roll so only on the rolling stock 2, without rolling the rolling stock 2 (ie reshape).
- the control device 4 begins to load the roll stand 1 'to be integrated into a defined time load course. Locally simultaneously with the loading of the rolling mill to be integrated, the control device 4 begins to relieve at least one other rolling stand 1, 1 "of the continuous rolling mill according to a defined time relief curve "are matched to one another in such a way that the end properties of the rolling stock 2 are maintained.
- a step S24 the control device 4 continues the loading of the roll stand 1 'to be integrated into the system according to the defined time load profile.
- the control device 4 controls the peripheral speed vU 'of the work rolls 3' of the roll stand 3 'to be incorporated such that a discharge speed v' of the rolled stock 2 at the location of the roll stand 1 'to be incorporated corresponds to the target discharge speed v' *.
- the target discharge speed v '* may alternatively be constant in time or variable in time.
- a step S25 the control device 4 continues the unloading of the other rolling stands 1, 1 "analogously to the loading of the rolling mill 1 'to be integrated in. In this case too, the control device 4 takes into account the determination of peripheral speeds vU, vU" of the work rolls 3, 3 ". the corresponding rolling mills 1, 1 "according to the respective momentary relief changing overruns of the rolling stock. 2
- a step S26 the control device 4 checks whether the roll stand 1 'to be incorporated is already fully loaded. If this is not the case, the control device 4 returns to step S24, thus continuing the loading operation of the rolling mill 1 'to be integrated and the corresponding unloading operation of the other rolling stands 1, 1. Otherwise, the starting point is the incorporation of the rolling mill to be incorporated If necessary, however, in an additional step S27, a possibly remaining speed error can be eliminated.
- the relief to be effected is generally distributed among a plurality of other rolling stands 1, 1". In individual cases, however, it is possible that only a single other rolling stand 1, 1 "is relieved.
- step S7 of FIG. 2 or FIG. 3 the procedure is as explained below in conjunction with FIG. FIG. 6 is essentially a combination of the procedures of FIG. 4 and FIG. 5.
- Steps S31 and S32 correspond to steps S21 and S22 of FIG. 5.
- Steps S33 and S34 correspond to steps S11 to S13 of FIG. 4 and S23 to S25 of FIG.5, respectively.
- a step S35 corresponds to step S14 of FIG.
- a step S36 corresponds to the step S27 of FIG. 5.
- Steps S37 to S39 correspond to the steps S15 to S17 of FIG. 4.
- the control device 4 position-control a roll gap of the roll stand 1 "to be split-off, in order to relieve the roll stand 1" to be split-off.
- the relief curve of the roll stand 1 "to be split-off corresponds, according to FIG. 7, to a time profile of a set roll gap value p * for the roll stand 1" to be taken off, which is raised as a function of time t from an initial value corresponding to the predetermined time profile to a final value.
- the work rolls 3 "of the spin-off roll stand 1" roll the rolled stock 2.
- the work rolls 3 "of the roll stand 1" to be removed roll off the rolled stock 2, but still roll on the rolling stock 2.
- the loading course of the rolling mill 1 'to be incorporated runs essentially inversely to the relief course of the rolling stand 1 "to be removed.
- the start and end values of the nip setpoint p * may be framework specific.
- the value at which the rolling stock 2 is actively rolled, that is, a forming of the rolled stock 2 may be dependent on the stitch plan.
- a set rolling force F * with which the rolling mill 1 "to be removed rolls the rolling stock 2, is lowered from a relatively high initial value to a relatively low final value (zero or near zero) according to a defined time profile the high value is an active rolling (forming) of the rolling stock 2. At the low value, no plastic forming of the rolling stock 2 takes place.
- control device 4 can load-load the rolling mill 1 'to be integrated into the rolling gap of the rolling stand 1' to be incorporated.
- the temporal load course is essentially inverse to the relief course of the roll stand 1 "to be split off.
- control device 4 relieve the roll stand 1 to be split off "the roll gap of the roll stand 1 to be removed" by corresponding predetermination of a speed relation r * relative to a rolling stand 1.
- the control device 4 implements a control block 10, on the one hand the speed relation r * as a function of the time t and, on the other hand, the (measured or modeled) exit speeds v, v "of the upstream roll stand 1 and the roll stand 1" to be tipped off are predefined in the control block 10 on the basis of the speed relation r * and the set peripheral speeds vU * for the work rolls 3 of the upstream roll stand 1 and / or the target peripheral speed vU "* for the work rolls 3" of the take-off roll stand 1 "are determined such that the ratio of the exit speeds v, v"
- the set circumferential speeds vU, vU “* are set correspondingly directly or by means of speed controllers 11, for example.
- the exit speeds v, v " the corresponding target exit speeds v *, v" * can also be used.
- the train ZA has to be regulated to a predetermined reference train Z * in front of the dismountable rolling stand 1 "This is effected by the control device 4 realizing a draft regulator 12 which operates by means of a corresponding correction signal ⁇ s * the employment of the ausliedernden mill stand 1 "acts.
- the detection of the train ZA takes place here by means of a suitable detection element 13.
- the speed ratio r * according to the predetermined time profile is gradually reduced from a value greater than one to the value one in connection with the tension control which acts on the setting of the rolling stand 1 "to be taken out , in this case, the degree of deformation results by itself.
- the corresponding procedure is known to those skilled in the cold rolling of strips per se.
- the rolling mill 1 'to be integrated in and the rolling stand 1 "to be split-off are switched on and off in one and the same way, ie either are position-controlled or both controlled by force or both regulated by the speed relation r *.
- the roll stand 1 'to it is possible to regulate the roll stand 1 'to be incorporated and the roll stand 1 "to be taken apart in different ways from one another, but the coordination in detail is more complicated in this case.
- the train ZA in the respective rolling mill 1', 1" immediately upstream section of the rolling stock 2 must be regulated. This is preferably done by switching to a rolling speed a correction value ⁇ v *.
- the correction value ⁇ v * can be switched on by the control device 4 regulating the peripheral speed vU ', vU "of the rolling stand 1' to be incorporated or of the roll stand 1" to be removed.
- control device 4 takes into account the tracking of the peripheral speed vU ', vU "of the work rolls 3', 3" of the roll stand 1 'to be incorporated or of the roll stand 1 "to be cast-off in at least one rolling stand 1, which also rolls the rolled stock 2, the part to be incorporated or ausliedernden mill stand 1 ', 1 ", however, is arranged downstream.
- the control device 4 can regulate the tension ZA in the section of the rolling stock 2 entering the corresponding roll stand 1 ', 1 "by virtue of the correction value ⁇ v * of the peripheral speed vU of the work rolls 3 of the respective rolling stand 1'. , 1 "directly upstream, the rolling stock 2 also rolling mill 1 tracks and thus corrects its peripheral speed vU.
- the control device 4 takes into account the tracking of the peripheral speed vU of the work rolls 3 of the directly upstream rolling stand 1 in at least one further roll stand 1, in which the rolling stock 2 is also rolled, the latter rolling stand 1
- the incoming or ausliedernden rolling mill 1 ', 1 only indirectly upstream.
- the present invention has many advantages.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801228722A CN102066016B (zh) | 2008-06-19 | 2009-05-22 | 具有在连续的运行中将轧机机架加入和/或分离的功能的连轧机列 |
BRPI0914872A BRPI0914872B1 (pt) | 2008-06-19 | 2009-05-22 | método de operação para um mecanismo de laminação contínua |
RU2011101732/02A RU2494827C2 (ru) | 2008-06-19 | 2009-05-22 | Непрерывный прокатный стан с введением и/или выведением прокатных клетей в процессе функционирования |
PL09765706T PL2293889T3 (pl) | 2008-06-19 | 2009-05-22 | Ciąg walcowniczy ciągły z przyłączaniem i/lub odłączaniem klatek walcowniczych w czasie pracy |
EP09765706.8A EP2293889B1 (de) | 2008-06-19 | 2009-05-22 | Konti-walzstrasse mit ein- und/oder ausgliedern von walzgerüsten im laufenden betrieb |
US12/997,167 US8731702B2 (en) | 2008-06-19 | 2009-05-22 | Continuous rolling train with integration and/or removal of roll stands during ongoing operation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08011205A EP2135690A1 (de) | 2008-06-19 | 2008-06-19 | Konti-Walzstrasse mit Ein- und/oder Ausgliedern von Walzgerüsten im laufenden Betrieb |
EP08011205.5 | 2008-06-19 |
Publications (1)
Publication Number | Publication Date |
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WO2009153126A1 true WO2009153126A1 (de) | 2009-12-23 |
Family
ID=39720527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/056225 WO2009153126A1 (de) | 2008-06-19 | 2009-05-22 | Konti-walzstrasse mit ein- und/oder ausgliedern von walzgerüsten im laufenden betrieb |
Country Status (8)
Country | Link |
---|---|
US (1) | US8731702B2 (de) |
EP (2) | EP2135690A1 (de) |
KR (1) | KR101633524B1 (de) |
CN (1) | CN102066016B (de) |
BR (1) | BRPI0914872B1 (de) |
PL (1) | PL2293889T3 (de) |
RU (1) | RU2494827C2 (de) |
WO (1) | WO2009153126A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2581142A1 (de) * | 2011-10-13 | 2013-04-17 | Siemens Aktiengesellschaft | Verfahren zur Ermittlung einer Walzgutgeschwindigkeit |
EP2620233A1 (de) * | 2012-01-24 | 2013-07-31 | Siemens Aktiengesellschaft | Verfahren zur Bearbeitung von Walzgut in einem Warmwalzwerk |
EP2777832A1 (de) | 2013-03-13 | 2014-09-17 | Siemens VAI Metals Technologies GmbH | Vorrichtung zur Inbetriebsetzung der Drehbewegung der Arbeitswalzen eines Walzwerks, und Methode zum Auswechseln der genannten Walzen |
CN104384201B (zh) * | 2014-10-13 | 2016-04-27 | 南京钢铁股份有限公司 | 一种避免轧钢过程压下分配变化较大的方法 |
CN104874613B (zh) * | 2015-05-27 | 2016-11-23 | 武汉科技大学 | 通过轧机速度补偿实现热连轧机架间秒流量平衡的方法 |
CN107199247B (zh) * | 2016-03-18 | 2019-09-17 | 上海梅山钢铁股份有限公司 | 一种五机架冷连轧机缺机架轧制的控制方法 |
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KR100241167B1 (ko) * | 1995-04-18 | 2000-03-02 | 에모토 간지 | 연속열간압연에 있어서의 강편접합부의 압연방법 |
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US20040122547A1 (en) * | 2002-12-20 | 2004-06-24 | Seymour Sydney Keith | Equipment and methods for manufacturing cigarettes |
RU2264873C2 (ru) * | 2004-02-05 | 2005-11-27 | Делюсто Лев Георгиевич | Способ холодной прокатки полос |
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-
2008
- 2008-06-19 EP EP08011205A patent/EP2135690A1/de not_active Withdrawn
-
2009
- 2009-05-22 BR BRPI0914872A patent/BRPI0914872B1/pt active IP Right Grant
- 2009-05-22 CN CN2009801228722A patent/CN102066016B/zh active Active
- 2009-05-22 KR KR1020107028434A patent/KR101633524B1/ko active IP Right Grant
- 2009-05-22 PL PL09765706T patent/PL2293889T3/pl unknown
- 2009-05-22 RU RU2011101732/02A patent/RU2494827C2/ru active
- 2009-05-22 WO PCT/EP2009/056225 patent/WO2009153126A1/de active Application Filing
- 2009-05-22 EP EP09765706.8A patent/EP2293889B1/de active Active
- 2009-05-22 US US12/997,167 patent/US8731702B2/en active Active
Patent Citations (4)
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JPS5431070A (en) * | 1977-08-13 | 1979-03-07 | Toshiba Corp | Rearranging method for rolls of continuous rolling mill |
JPS62101309A (ja) * | 1985-10-29 | 1987-05-11 | Ishikawajima Harima Heavy Ind Co Ltd | ロ−ルシフト方法 |
JPS62289306A (ja) * | 1987-05-29 | 1987-12-16 | Hitachi Ltd | 連続タンデム圧延機の走間ロール交換制御方法 |
US20080060403A1 (en) * | 2004-05-06 | 2008-03-13 | Hans-Joachim Felkl | Method for Rolling Rolling Stock Having a Transitional Region |
Also Published As
Publication number | Publication date |
---|---|
BRPI0914872A2 (pt) | 2015-11-24 |
EP2293889B1 (de) | 2013-07-03 |
BRPI0914872B1 (pt) | 2020-05-05 |
CN102066016B (zh) | 2013-06-12 |
US20110098842A1 (en) | 2011-04-28 |
PL2293889T3 (pl) | 2013-12-31 |
RU2494827C2 (ru) | 2013-10-10 |
EP2135690A1 (de) | 2009-12-23 |
RU2011101732A (ru) | 2012-07-27 |
KR101633524B1 (ko) | 2016-06-24 |
CN102066016A (zh) | 2011-05-18 |
US8731702B2 (en) | 2014-05-20 |
EP2293889A1 (de) | 2011-03-16 |
KR20110022609A (ko) | 2011-03-07 |
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