CN103079721A - Operating method for a roller mill for rolling flat rolled goods having roller wear prediction - Google Patents
Operating method for a roller mill for rolling flat rolled goods having roller wear prediction Download PDFInfo
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- CN103079721A CN103079721A CN2011800414730A CN201180041473A CN103079721A CN 103079721 A CN103079721 A CN 103079721A CN 2011800414730 A CN2011800414730 A CN 2011800414730A CN 201180041473 A CN201180041473 A CN 201180041473A CN 103079721 A CN103079721 A CN 103079721A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2267/00—Roll parameters
- B21B2267/24—Roll wear
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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
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Abstract
The invention relates to a roller mill for rolling flat rolled goods (1), comprising at least one roll stand (2) having rollers (3). The flat rolled goods (1) are rolled in the roll stand (2). During rolling of the flat rolled goods (1) in the roll stand (2), actual parameters (I) of the flat rolled goods (1) and/or the roll stand (2) are captured. Based on an initial state of at least one roller (3) of the roll stand (2), an expected current actual wear (V) of the at least one roller (3) is derived by means of a wear model (8), using the actual parameters (I) captured during the previous roller run of the particular roller (3). Based on the expected current actual wear (V), using the wear model (8) and expected actual future parameters for flat rolled goods (1) to be rolled in the future, an expected future actual wear (V') of the at least one roller (3) is derived for at least one position (P) of the future roller run. The position (P) of the future roller run, the expected future actual wear (V'), and/or information derived from at least one of said values are made available to an operator (9) of the roller mill.
Description
Technical field
The present invention relates to a kind of operation method of the milling train for rolling smooth rolled piece, this milling train has at least one with the mill stand of roll,
-wherein, rolling smooth rolled piece in mill stand,
-wherein, in mill stand, during the rolling smooth rolled piece, detect smooth rolled piece and/or the actual amount of mill stand,
-wherein, from the initial state of at least one roll of mill stand, by wear model, according to the actual amount that the roll run duration up to now at corresponding roll detects, measure the current actual wear amount of the expection of this at least one roll.
The invention still further relates to a kind of computer program that comprises machine code, this machine code can be used to the control computer of the milling train of rolling smooth rolled piece and directly carry out, and by the control computer carry out machine code so that the control computer according to this operation method operation milling train.
The invention still further relates to a kind of control computer of the milling train for rolling smooth rolled piece, wherein, this control computer designs like this, that is, so that the control computer is according to this operation method operation milling train.
The invention still further relates to a kind of milling train for rolling smooth rolled piece, this milling train is equipped with this control computer.
Background technology
Foregoing for example is known from JP04017920A.
When rolled metal, in the roll appearance wearing and tearing of mill stand.The degree of the wearing and tearing that occur and different relating to parameters.For example the degree of wearing and tearing depend on roll type (working roll, backing roll ...), rolling type (cold rolling or hot rolling), the arrangement (first, second, third mill stand of milling train etc.) of roll in milling train, the material of rolled piece (steel, aluminium, copper ...), the material of roll (cast iron, cast steel, high speed steel ...) etc.
Wearing and tearing are influential to the quality of rolling smooth rolled piece.Particularly must consider wearing and tearing by correspondingly (also may relate to moulding and flatness aspect) being proofreaied and correct in the installation site, and compensate as far as possible.Roll in addition must regularly replace and again polish.
Only have when relevant roll is removed from mill stand and can accurately be measured, just might directly measure the wear extent of roll.In the ongoing operation of rolling, can not directly measure the roll wear amount on the contrary.Yet be known that the actual amount that detects the operation of rolling, and calculate in real time the roll wear amount by wear model.By wear model, the current wear extent of the expection of corresponding roll is measured in rolling highway section, the change curve of roll-force in this section highway section of depending on rolled piece etc.Wear model for example is used for correspondingly installation being proofreaied and correct for other control system provides the current wear extent of the expection of mensuration.
It is also known that, milling train the startup stage adjust wear model to adapt to actual conditions.Yet, when moving, but can't check or also can not proofread and correct this adjustment.
Just as already mentioned, must regularly replace the roll of mill stand.In the prior art, be to determine to change the time interval in conservative mode.The replacing of roll is carried out too early rather than be excessively late, and is up to specification to guarantee rolling rolled piece, and satisfactory specification.Yet this method has caused needs to change relatively continually roll, and causes the milling train downtime that interrelates with it.Therefore the result is the productivity losing of milling train work.Particularly at continuous machine row (Kontistra β en) and strand Direct Rolling equipment, especially have in the strand Direct Rolling equipment of continuous service ability particularly like this.
Self-evident ground certainly can prolong roll and change the time interval.Yet, in this case, exist roll change before the too large danger of wearing and tearing soon the time, to such an extent as to the no longer satisfactory specification of rolling rolled piece.
Another problem is, can not put at any time to change or have a mind to the free burial ground for the destitute and change roll, but can only carry out between the smooth rolled piece in succession of two front and back.
Summary of the invention
The object of the invention is to, the multiple possibility of wear extent in future of at least one roll that can predict in reliable mode the mill stand of milling train is provided.
The operation method of the milling train of this purpose by having the described feature of claim 1 is realized.The favourable design of operation method is the description object of dependent claims 2 to 13.
Be designed to according to the present invention, form in the following manner the operation method of the described type of beginning,
-measure from the current actual wear of expection and to send out, by wear model, according to the actual amount of the expection in future of wanting rolling smooth rolled piece future, be the actual wear amount of the expection in future of at least one at least one roll of position finding of the roll operation in future, and
-position, the actual wear amount of following expection and/or the information that at least one is derived from these values of following roll operation is provided for the operator of milling train.
Minimize in the configuration mode of the present invention, for example can preset the next end of wanting rolling smooth rolled piece in a fixed position of following roll operation-for example-, and can measure the actual wear amount of this locational following expection.Replacedly can preset the reference wear extent of definition, and be determined at the reference wear extent that can occur expection on which position of following roll operation.Yet preferably be designed on the contrary, measure respectively the actual wear amount of the expection in future of at least one roll for a plurality of positions of the roll in future operation, and the function of the actual wear amount of following expection as the position of the roll operation in future is provided for the operator of milling train, the function of the position of following roll operation as the actual wear amount of expection in future perhaps is provided.
In a kind of preferred design of the present invention, also be designed to, to compare for its at least one position and reference position of having measured the actual wear amount of following expection, and/or will and compare with reference to wear extent for the actual wear amount of expecting at least one position finding, following, and depend on that comparative result determines, whether change at least one roll, perhaps whether continue rolling smooth rolled piece.
If adjust this wear model, then the method according to this invention can also work better.Therefore, preferably be designed to,
-after pulling down at least one roll, input to the correcting value determinator at least one roll expection current actual wear amount and characterize the real data of the real actual wear amount of at least one roll,
-correcting value determinator compares to measure at least one correcting value by the current actual wear amount that will expect and real actual wear amount, and
-correcting value determinator is adjusted wear model according at least one correcting value, so that after adjusting wear model, consider this at least one correcting value when measuring the actual wear amount current and/or following expection of expection.
For this purpose, will come from the grinding machine workshop of at least one roll, the real data input correcting value determinator of the real actual wear amount of sign, and/or automatically input.
In the simplest situation, the correcting value determinator is only considered current actual wear amount and the real actual wear amount of the expection on the centre position of at least one roll when measuring at least one correcting value.Yet what realized better effect is, the correcting value determinator when measuring at least one correcting value, also consider extraly the current actual wear amount of the expection beyond the centre position of at least one roll and real actual wear amount-for example as about the function of rolling width-.
Which kind of particularly when according to until pull down the characteristic of the smooth rolled piece that is rolled till at least one roll, when whether determining and with form wear model being adjusted in this case, just can adjust wear model reliably.Especially when rolling various material or special, the general material that seldom uses, therefore so that adjust may be unreliable the time, can stop to adjust.Also can realize adjusting for special material.
Preferably wear model is distributed to corresponding roll individually.
In multiple situation, in one of them mill stand in a plurality of mill stands of the milling train of at least one roll replacedly can being packed into.In this case, in wear model, preferably consider this roll of packing in which mill stand in mill stand.
In multiple situation, at least another mill stand of milling train is arranged in mill stand the place ahead of at least one roll of having packed into therein.In most of situation, the roll of the same-type of in another mill stand, always having packed into.Yet under a few cases, at least two types wherein one type another roll of replacedly in this another mill stand, packing into.In this case, in wear model, preferably consider another roll of which kind of type of in another mill stand, packing into.
Also be designed in a kind of preferred design of the present invention, wear model is considered the temperature of rolled piece roll and/or smooth when measuring the actual wear amount current and/or following expection of expection.
Also realize by the computer program that starts described type according to purpose of the present invention.In this case, computer program designs like this, that is, control computer-implemented have according to operation method of the present invention operation method in steps.
This purpose also control computer of the milling train by being used for rolling smooth rolled piece realizes that the control computer designs like this, that is, the control computer is implemented this operation method when operation.
This purpose also realizes that by the milling train that is used for rolling smooth rolled piece this milling train is equipped with this control computer.
Description of drawings
Other advantage and details draw from the description of following connection with figures to embodiment.Shown in schematic diagram:
Fig. 1 schematically shows the milling train for rolling smooth rolled piece,
Fig. 2 illustrates flow chart,
Fig. 3 and 4 illustrates the possible output content that offers the operator,
Fig. 5 illustrates flow chart,
Fig. 6 illustrates the possible output content that offers the operator,
Fig. 7 and 8 illustrates flow chart,
Fig. 9 schematically shows the use cyclic process of roll,
Figure 10 and 11 illustrates flow chart, and
Figure 12 and 13 illustrates chart.
The specific embodiment
According to Fig. 1, the milling train that is used for rolling smooth rolled piece 1 has a plurality of mill stands 2.Smooth rolled piece 1 passes through these mill stands 2 successively.Each mill stand 2 of milling train has roll 3.These rolls 3 comprise working roll at least, often also include other roll, for example backing roll or-except backing roll-also have intermediate calender rolls.
The quantity of the shown mill stand 2 of milling train is exemplary purely.Only there is a unique mill stand 2 when minimum.Mandatory requirement conveyer belt direction of advance x is always not constant yet in addition, as shown in fig. 1.Replacedly may carry out reverse rollingly, particularly only have a unique mill stand 2 or only during two mill stands 2 when milling train.
According to shown in Figure 1, smooth rolled piece 1 rolling in milling train is band.Yet replacedly, this rolled piece also can be another kind of smooth rolled piece 1, for example sheet material or steel plate.
Milling train is equipped with the control computer 4 of control milling train.Control computer 4 is typically designed to the device of available software programming.Therefore, the working method of control computer 4 is by by computer the computer program 5 that computer connects (not shown) or storage medium 6 input control computers 4 being determined.In storage medium 6, but computer program 5 is with electronic form-storage in the form that reads with machine-most of situation.According to Fig. 1, storage medium 6 is designed to usb memory stick.Yet this design is pure exemplary.Arbitrarily other design of storage medium 6 is possible, for example is designed to CD-ROM or SD storage card.
Control computer 4 utilizes computer program 5 programmings.Computer program 5 comprises can be by the control computer 4 direct machine codes 7 of carrying out.The working method of control computer 4 is determined in the execution of machine code 7.Carry out machine code 7 so that control computer 4 moves milling train according to a kind of operation method that contacts below the detailed description of Fig. 2 by control computer 4.Utilize computer program 5 just to programme so that correspondingly construct control computer 4 for control computer 4.
The present invention can be used in all rolls 3 of mill stand 2 in principle.Particularly importantly be applied in the working roll of mill stand 2.The top working roll 3 that contacts below in addition the 3rd mill stand 2 among Fig. 1 is set forth the present invention.Yet, thisly determine it is purely arbitrarily.The present invention can be applied on each other the roll 3 of each mill stand 2 in a similar fashion.
According to Fig. 2, control computer 4 receives the actual amount of the expection in future of at least one following smooth rolled piece 1 that will be rolling in step S1.These actual amounts for example are the rolling shedule data, or rolling and have and the following data of wanting the smooth rolled piece 1 of rolling smooth rolled piece 1 similar characteristic.The rolling of smooth rolled piece 1 that control computer 4 is received the actual amount of its following expection in step S1 also just not yet begins.
What the below related to all the time is the rolling shedule data, rather than the actual amount of following expection, because this is the most frequent situation according to estimating.
The rolling shedule data can be the data of a unique smooth rolled piece 1.Replacedly can be the rolling shedule data of a plurality of smooth rolled pieces 1.
The rolling shedule data that receive can be the data of next smooth rolled piece 1 that will be rolling.Replacedly can be the data of rolled piece 1 rolling, smooth after the next one is wanted rolling smooth rolled piece 1.Under latter event, the rolling shedule data of control computer 4 common known smooth rolled piece 1 that should be rolling before all execution in step S1 after.The below is a numerical example:
Having finished rolling is smooth rolled piece a, b and c.At present just rolling be smooth rolled piece d.In step S1, control computer 4 can receive the rolling shedule data of smooth rolled piece e.Replacedly, control computer 4-for example-can in step S1, receive the rolling shedule data of smooth rolled piece g and h.In this case, control computer 4 common known not yet rolling smooth rolled piece e and the rolling shedule data of f.
The rolling shedule data comprise the setting that be used for rolling corresponding smooth rolled piece 1 of milling train, for example reduction in pass of expectation on the one hand.In addition, the rolling shedule data yet comprise the data of smooth rolled piece 1, for example its width and temperature thereof, and rolling condition, for example roll-force and the roll torque of expection.
In step S2, control computer 4 is measured the actual wear amount V ' of following expection at least one position P of the roll operation in future from the current actual wear amount V of expection.By the wear model 8 of roll 3, realize the step S2 that measures according to the rolling shedule data of wanting rolling smooth rolled piece 1 future.
" roll operation " this concept is known for each professional and technical personnel.This concept refer to smooth rolled piece 1 that each are different by means of observed roll 3 rolling-and the roll in future in service-length separately that also will be rolled.Can imagine like this image of roll operation, just look like that smooth rolled piece 1 is slack in the rolling gap of the observed roll 3 of wherein having packed into of mill stand 2, and corresponding mill stand 2 moves along smooth rolled piece 1 during rolling.Reverse when rolling, certain transition count direction correspondingly when each the reverse is so that rolling length is the monotonically increasing function of time.
In the framework of step S2, be the current actual wear amount V of known expection as prerequisite.Also to inquire into later the mensuration to the current actual wear amount V of expection.
Contact step S2, " wanting rolling smooth rolled piece future " this concept also has the meaning of all not yet rolling smooth rolled piece 1.In a similar fashion, " the current actual wear amount of expection " this concept refers to all rolling smooth rolled piece 1.The below is an example:
Suppose-pure exemplarily-smooth rolled piece a, b and c are rolling mistakes.With regard to observed roll 3, smooth rolled piece d has been rolled 30%, and 70% is not yet rolling in addition.Should measure at the end of smooth rolled piece e the actual wear amount V ' of following expection.In this case, " the current actual wear amount of expection " this concept refers at rolling smooth rolled piece a, the wearing and tearing of expection after b and c and 30% the smooth rolled piece d.In step S2, from this actual wear amount V, at first use the rolling shedule data of rolled piece d, be used for measuring at the end of rolled piece d the actual wear amount V ' of following expection.Then from this actual wear amount V ', according to the actual wear amount V ' of the rolling shedule data determination of the smooth rolled piece e expection in future after rolling smooth rolled piece e.
In step S3, control computer 4 may be the requirement of answering operator 9-provide at least one information for the operator 9-of milling train.For example, control computer 4-sees Fig. 3-can demonstrate for operator 9, and the actual wear amount V ' in what kind of future is arranged in certain predetermined position P expection of the roll operation in future.In this case, for example can be default or be the control computer position P in 4 default these predetermined futures by operator 9 regularly for control computer 4.Replacedly or additionally, can be in step S3 according to shown in Figure 4 to information of operator's 9 outputs, point out which position P expection in the roll operation in future has the actual wear amount V ' in predetermined future.In this case, for example can preset regularly for control computer 4 the actual wear amount V ' in predetermined future, perhaps default by operator 9.Also can show other, out the information of from these values, deriving.For example when surpassing certain default reference wear extent on the end of next smooth rolled piece 1 that will be rolling, control computer 4 can give the alarm.This can contact in the back Fig. 7 and 8 and more at large set forth.The maximum that following smooth rolled piece 1 that will be rolling for example also can be measured and export to control computer 4 allows width.
In step S4, control computer 4 checks that whether the observed roll 3-of-reference carries out roll is changed.If so, carrying out so roll in step S5 changes.Step S5 in Fig. 2 only with dashed lines draw, this be because, dismantle roll 3 and another roll 3-that packs into of so far use although in the flow process of Fig. 2, must consider roll replacing itself-namely, this work can't help to control computer 4 execution.
In step S6, control computer 4 initializes wear model 8.In addition, the current actual wear amount V that control computer 4 will be expected in step S6 is set to initial state, and wherein, the value of roll 3 new or that again polished for example is made as zero, otherwise is made as value corresponding, non-zero.
If do not change roll, control so computer 4 and be transitioned into step S7 from step S4.In step S7,4 pairs of milling trains of control computer are controlled.(go back in addition) so that smooth rolled piece 1 is rolled in the observed mill stand 2 of milling train thus.
In observed mill stand 2, during the rolling smooth rolled piece 1, detect actual amount I smooth rolled piece 1 and/or mill stand 2.For example can detect roll-force, roll torque, in the place ahead of observed mill stand 2 and/or the strip tension at rear, thickness of strip that input and/or that exporting, rolling gap etc.Control computer 4 receives the actual amount I that detects in step S8.Control computer 4 is stored actual amount I in step S9, thereby provides it to the evaluation work in later stage.
In step S10, control computer 4 is measured the current actual wear amount V of (new) expection.So control computer 4 just is transitioned into step S11.In step S11, control computer 4 checks whether provide new rolling shedule data to it.According to the check result of step S11, control computer 4 is back to step S1 or step S2.
Control computer 4 is measured the current actual wear amount V of the new expection of observed roll 3 in step S10.Control computer 4 is from the actual wear amount V that provides of observed roll 3, measure the wearing and tearing increment δ V that increases progressively by wear model 8 being used for correspondingly execution in step S7, and the wearing and tearing increment δ V that will increase progressively is added on the current actual wear amount V that provides.The result equals the current actual wear amount V of new expection.
Based on described step, from the initial state of observed roll 3, little by little measure the current actual wear amount V of expection by the wearing and tearing increment δ V' phase Calais that will increase progressively accordingly.Therefore, control computer 4 is measured the current actual wear amount V of expection from the initial state of observed roll 3.
The wearing and tearing increment δ V that increases progressively measures by wear model 8.The actual wear amount V ' of following expection also measures by wear model 8.For these two purposes, wear model 8 can be designed as integrated wear model.That is to say, can use same wear model 8 no matter be for the current actual wear amount V that measures expection or for the actual wear amount V ' that measures following expection.Replacedly, wear model 8 can have two sub-models that differ from one another, and wherein, a sub-model is used for measuring the current actual wear amount V of expection, and another sub-model is used for measuring the actual wear amount V ' of following expection.Yet, no matter take any in two kinds of ways, all measure the wearing and tearing increment δ V that increases progressively by wear model 8 according to the actual amount I that detects respectively and received by control computer 4.
As long as needs are arranged, control computer 4 just can be for the current actual wear amount V that measures expection also considers except actual amount I for just in the rolling shedule data of rolling smooth rolled piece 1, for example just at the width of rolling smooth rolled piece 1.But following rule is that effectively namely, the actual amount I that detects has precedence over the corresponding amount that provides from rolling shedule, and will detect roll-force at least.As a result, therefore control computer 4 measures the current actual wear amount V that expects according to the actual amount I that the roll run duration up to now at observed roll 3 detects.
Fig. 5 illustrates a kind of preferred design of step S2 shown in Figure 2 and S3.According to Fig. 5, control computer 4 not only be that certain specific position P of following roll operation measures the actual wear amount V ' of the corresponding following expection of observed roll 3, and be the corresponding position P that the roll in actual wear amount V ' mensuration future of certain specific following expection moves.Or rather, by the actual wear amount V ' that measures respectively the expection in future of observed roll 3 according to the control computer 4 (design of=step S2 shown in Figure 2) in step S21 of Fig. 5 for a plurality of position P of following roll operation.In step S22 (design of=step S3 shown in Figure 2), control computer 4 provides the function (perhaps vice versa) of the actual wear amount V ' of following expection as the position P of the roll operation in the future of observed roll 3 for the operator 9 of milling train.For example, control computer 4 can to the operator 9 corresponding forms of output or corresponding chart-referring to the example of Fig. 6-.
Fig. 7 illustrates the another kind of possible design of step S2 shown in Figure 2 and S3.The design of Fig. 7 can be used as replacement or additional being achieved of the design of Fig. 5.
According to Fig. 7, preset the actual wear amount V ' of predetermined following expection for control computer 4.Control computer 4 is measured that position P of following roll actual wear amount V ' operation, can expect this future for it in step S31.The position P that measures is compared with reference position P* in step S32, for example want the end of rolling smooth rolled piece 1 to compare with the next one, its beginning not yet is rolled in milling train this moment.Step S32 more replacedly can be carried out or be carried out by operator 9 by control computer 4.Can be for controlling regularly preset reference position P* of computer 4, perhaps by operator 9 default these reference positions.So same for the actual wear amount V ' of predetermined following expection.
The comparative result that depends on step S32 continues rolling smooth rolled piece 1 in step S33, perhaps change observed roll 3 in step S34.Step 34 itself-natch-carried out by the operator 9 of milling train.But control computer 4 can be by the corresponding execution that requires to support or cause step S34 of output.
According to Fig. 8, replacedly can use step S41 and S42 step of replacing S31 and S32.In this case, for control computer 4 regularly default following roll operation, measure the position P of the following actual wear amount V ' that expects for it.In this case, control computer 4 is measured the actual wear amount V ' for the expection in future of this position P in step S41.The actual wear amount V ' of expection in the future that in step S42, will measure with compare with reference to wear extent V*.Other embodiment of Fig. 7 also can be applied among Fig. 8 similarly.
The way of describing so far provides good result.Yet this way can also further be improved by following design of the present invention.The design demand of looking that the following describes can make up in any way with aforesaid design, and also can make up in any way each other.
Just as already mentioned, the roll 3 of milling train must periodic replacement.If pull down-grind away-roll 3, then pack immediately another into-normally unworn-roll 3 as the replacement of the roll 3 dismantled, it is-Fig. 9-not long ago provided from warehouse 10 is provided.The roll 3 of pulling down is admitted in the grinding machine workshop 11 again to be polished, measures, and then is placed into warehouse 10.
According to Fig. 9, for each roll 3 distributes individually their wear model 8(separately or is the corresponding setup parameter of wear model 8 at least).Each wear model 8(or corresponding parameter) following corresponding roll 3 on its path from milling train to grinding machine workshop 11, in warehouse 10, and turn back in the milling train therefrom.
As contacting that Fig. 2 sets forth, when changing roll, initialize wear model 8(and see step S6 among Fig. 2).Initial work for example can be designed to as following contact Figure 10 elaboration.
If take out roll 3 from warehouse 10, and pack in the mill stand 2 of milling train as the replacement of another roll 3, the roll 3 that pack into needn't always be loaded in the same mill stand 2.-pure exemplary-possibility larger be certain specific roll 3 at first to be packed in the 3rd mill stand 2, in dismounting and polish laggardly to enter in the warehouse 10, and in the 4th mill stand 2 of the milling train of packing into afterwards.Therefore, according to Figure 10 preferably, control computer 4 receives the information about the installation site of the roll 3 of new installation in step S51.So in step S52, control computer 4 is just correspondingly set the wear model 8 that is used for the new roll 3 of installing.Therefore, consider in wear model 8 roll 3 is loaded in which mill stand 2.
The roll 3 of mill stand 2 can also belong to different types aspect its material and surface characteristic.The roll 3 of the same type of usually in certain specific mill stand 2, always packing into.Yet in some cases, type can change.For example in the second mill stand 2 of Fig. 1, replacedly can pack into by surfacing " high speed steel " (HSS, English: high speed steel) or by surfacing " high chrome " (HC, English: high chrome) or by surfacing " chill casting " (IC, English: the roll of indefinite chill) making.Proved that in practice the wear extent of roll 3 may be which kind of type is relevant with the roll 3 that is arranged in the direct the preceding mill stand 2 of packing into also.Therefore preferably, control computer 4 receives the information about the type of at least one roll 3 of the mill stand 2 that is arranged in the place ahead in step S53, and correspondingly sets the parameter of wear model 8 in step S54.Therefore, also can consider to be arranged in what pack in the mill stand 2 in the place ahead in wear model 8 is the roll 3 of which kind of type.
Possiblely in addition be-and or even normal conditions-, in grinding machine workshop 11, before the roll 3 that polishing is pulled down again, detect the real actual wear amount VE of roll.Yet, after pulling down the roll 3 of having ground away, also can also detect corresponding real data I '.Can adjust wear model 8 according to real actual wear amount VE.The below's contact Figure 11 carries out elaboration to it.
Characterize the real data I ' of real actual wear amount VE-just as already mentioned: usually by from grinding machine workshop 11-automatic input control computer 4 preferably.Owing to utilize 5 pairs of control computers 4 of computer program to programme, control computer (in addition) has realized being used for the correcting value determinator of wear model 8.According to Figure 11, control computer 4 receives real data I ' in step S61.It therefrom measures real actual wear amount VE in step S62.
In step S63, control computer 4 compares the current actual wear amount V of real actual wear amount VE and expection, that is to say with until pull down the current actual wear amount V of the expection of roll 3 growths and compare.Control computer 4 is that wear model 8 is measured at least one correcting value K according to comparative result.In step S64, control computer 4 is adjusted wear model 8 according to this at least one correcting value K.Therefore, after wear model 8 is adjusted-namely when affiliated roll 3 is loaded in the mill stand 2 of milling train again-control computer 4 measuring the actual wear amount V current and/or following expection of expection, in V ' time, considered this at least one correcting value K.
According to until the embodiment up to now of Figure 11 all the time and unconditionally wear model 8 is adjusted.Yet this is not mandatory essential.Preferably only wear model 8 is carried out limited adjusting or rather.In this case, control computer 4 checks whether should adjust.For this purpose, control computer 4 is measured the value of amount of logic OK in step S65.The value of this amount of logic OK is asked in step S66.The value that depends on amount of logic OK determines it is to carry out or skips steps S63 and S64.As the replacement of skips steps S63 and S64, control computer 4 can also send corresponding warning to operator 9 or another person of milling train.In this case, only have when there is 4 default certain the clear and definite corresponding indication of manual control computer in the external world, just execution in step S63 and S64.
Control computer 4 preferably according to-yes from observed roll 3 is loaded into-until remove the characteristic of the smooth rolled piece 1 that is rolled from observed roll 3, the value of mensuration amount of logic OK always.Therefore for example in rolling special material-for example silicon steel-time, can stop the work of adjusting.Replacedly or extraly, can only have when main rolling certain predetermined material type-for example carbon steel-time, perhaps only have when rolling material blending constituent and, just allow to adjust during with interior (for example at least 60% carbon steel, 20% to 30% stainless steel and maximum 10% silicon steel) at predetermined percentage.In possible situation, in wear model 8, also can distinguish according to the material that is rolled.In this case, can carry out according to material fixed adjusting.
In order to adjust wear model 8, namely measure the step S63 among at least one correcting value K(Figure 11), possiblely in the simplest situation according to Figure 12 be to allow 4 in control computer consider real actual wear amount VE on the centre position of observed roll 3 and the current actual wear amount V of expection.According to Figure 13, replacedly possiblely be to allow control computer 4 also consider extraly current actual wear amount V observed roll 3, at least one locational at least one the real actual wear amount VE beyond the centre position of observed roll 3 and corresponding expection.Control computer 4 even can consider wear extent V, VE is as the function about rolling width.
Adjust and forcibly to be carried out by control computer 4 what wear model 8 carried out.Replacedly also can adjust another device.If by another device wear model 8 is adjusted, certainly also must input to this another device the current wear extent V of expection.In the situation that control computer 4 is adjusted, just there is not this necessity, because control computer 4 itself has been measured the current wear extent V of expection, also just know this situation.
Participate in the actual wear amount V current and/or following expection to expection, among the mensuration of V ', just as already mentioned, have roll-force at least.In addition, participate in corresponding actual wear amount V, also having among the mensuration of V ' will rolling length of rolled piece and rolled piece width.Also have speed and the roller diameter of roll operation also can participate in together to described actual wear amount V, among the mensuration of V '.Under specific circumstances-and see that Fig. 2-wear model 8 can be at the described actual wear amount V of mensuration, in V ' time, also considered the temperature of rolled piece 1 roll 3 and/or smooth.
The present invention has a plurality of advantages, particularly in situation about adjusting, all keeps within whole running times of milling train or even improves prediction accuracy to the current actual wear amount V of expection.Can optimize in addition rolling dwell time, namely in the time of installation and removal between the roll 3.Usually also can optimize the quality of rolling smooth rolled piece 1.
More than describe and only be used for the present invention is illustrated.Protection scope of the present invention should only be determined by appended claim on the contrary.
Claims (16)
1. operation method that is used for the milling train of rolling smooth rolled piece (1), described milling train have to
A few mill stand with roll (3) (2),
-wherein, rolling described smooth rolled piece (1) in described mill stand (2),
-wherein, in described mill stand (2), during the rolling described smooth rolled piece (1), detect described smooth actual amount (I) rolled piece (1) and/or described mill stand (2),
-wherein, initial state from least one roll (3) of described mill stand (2), by wear model (8), the described actual amount (I) that detects according to the roll run duration up to now at corresponding described roll (3), measure the current actual wear amount (V) of the expection of at least one described roll (3)
-wherein, from current actual wear amount (the V) of described expection, by described wear model (8), actual amount according to the expection in future of wanting rolling smooth rolled piece (1) future, measure the actual wear amount (V ') of the expection in future of at least one described roll (3) at least one position (P) of the roll in future operation
-wherein, provide described position (P), the actual wear amount (V ') of described following expection and/or the information that at least one is derived of the roll operation in future for the operator (9) of described milling train from described these values.
2. operation method according to claim 1, it is characterized in that, measure respectively the actual wear amount (V ') of the described following expection of at least one described roll (3) for a plurality of positions (P) of the roll in described future operation, and the function of the actual wear amount (V ') of described following expection as the described position (P) of the roll operation in described future is provided for the described operator (9) of described milling train, and perhaps vice versa.
3. operation method according to claim 1 and 2, it is characterized in that, to compare with reference position (P*) for its at least one described position (P) of having measured the actual wear amount (V ') of described following expection, and/or will and compare with reference to wear extent (V*) for actual wear amount (V ') at least one described position (P) mensuration, described following expection, and depend on that comparative result determines, whether change at least one described roll (3), perhaps whether continue rolling described smooth rolled piece (1).
4. according to claim 1,2 or 3 described operation methods is characterized in that,
-after pulling down at least one described roll (3), input to correcting value determinator (4) at least one described roll (3) described expection current actual wear amount and characterize the real data (I ') of the real actual wear amount (VE) of at least one described roll (3)
-described correcting value determinator (4) compares to measure at least one correcting value (K) by the current actual wear amount (V) with described expection with described real actual wear amount (VE), and
-described correcting value determinator (4) is adjusted described wear model (8) according at least one described correcting value (K), so that adjusting described wear model (8) afterwards, when measuring the actual wear amount (V, V ') current and/or following expection of described expection, consider at least one described correcting value (K).
5. operation method according to claim 4, it is characterized in that, will come from described real data (I ') the input described correcting value determinator (4) grinding machine workshop (11), that characterize described real actual wear amount (VE) of at least one described roll (3).
6. according to claim 4 or 5 described operation methods, it is characterized in that, automatically will characterize described real data (I ') the input described correcting value determinator (4) of described real actual wear amount (VE).
7. according to claim 4,5 or 6 described operation methods, it is characterized in that, described correcting value determinator (4) is considered current actual wear amount (V) and the described real actual wear amount (VE) of the described expection on the centre position of at least one described roll (3) when measuring at least one described correcting value (K).
8. operation method according to claim 7, it is characterized in that, described correcting value determinator (4) is also considered current actual wear amount (V) and the described real actual wear amount (VE) of the described expection beyond the centre position of at least one described roll (3) extraly when measuring at least one described correcting value (K).
9. each described operation method in 8 according to claim 4, it is characterized in that, according to until pull down the characteristic of the described smooth rolled piece (1) that is rolled till at least one described roll (3), whether determine and with which kind of form described wear model (8) is adjusted in this case.
10. according to each described operation method in the aforementioned claim, it is characterized in that, described wear model (8) is distributed to corresponding described roll (3) individually.
11. according to each described operation method in the aforementioned claim, it is characterized in that, at least one described roll (3) is replacedly packed in one of them mill stand in a plurality of mill stands (2) of described milling train, and in described wear model (8), consider the described roll (3) of packing in which mill stand in described mill stand (2).
12. according to each described operation method in the aforementioned claim, it is characterized in that, at least another mill stand (2) of described milling train is arranged in packed into therein described mill stand (2) the place ahead of at least one described roll (3), replacedly in described another mill stand (2), pack into wherein another roll (3) of one type at least two types, and in described wear model (8), consider another roll (3) of which kind of type of in described another mill stand (2), packing into.
13. according to each described operation method in the aforementioned claim, it is characterized in that, described wear model (8) is considered the temperature of smooth rolled piece (1) described roll (3) and/or described when measuring the actual wear amount (V, V ') current and/or following expection of described expection.
14. computer program that comprises machine code (7), described machine code can be used to the control computer (4) of the milling train of rolling smooth rolled piece (1) and directly carry out, and by described control computer (4) carry out described machine code so that described control computer (4) according to a kind of have according to each described operation method in the aforementioned claim operation method in steps move described milling train.
15. control computer that is used for the milling train of rolling smooth rolled piece (1), it is characterized in that, described control computer designs like this so that described control computer according to a kind of have according to claim 1 in 13 each described operation method operation method in steps move described milling train.
16. a milling train that is used for rolling smooth rolled piece (1) is characterized in that described milling train is equipped with control computer according to claim 15 (4).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10174297.1 | 2010-08-27 | ||
| EP10174297A EP2422893A1 (en) | 2010-08-27 | 2010-08-27 | Operating method for a milling system for milling flat milled goods with mill wear prognosis |
| PCT/EP2011/064153 WO2012025438A1 (en) | 2010-08-27 | 2011-08-17 | Operating method for a roller mill for rolling flat rolled goods having roller wear prediction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103079721A true CN103079721A (en) | 2013-05-01 |
| CN103079721B CN103079721B (en) | 2015-10-21 |
Family
ID=43618281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180041473.0A Active CN103079721B (en) | 2010-08-27 | 2011-08-17 | There is the operation method of the milling train of the rolled piece smooth for rolling of Roll Wear Prediction function |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP2422893A1 (en) |
| CN (1) | CN103079721B (en) |
| PL (1) | PL2588257T3 (en) |
| WO (1) | WO2012025438A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365542A (en) * | 2018-09-20 | 2019-02-22 | 北京金自天正智能控制股份有限公司 | A kind of calculation method of roughing vertical roll abrasion |
| CN114178319A (en) * | 2021-11-17 | 2022-03-15 | 首钢智新迁安电磁材料有限公司 | Control method and device of rolling equipment and computer equipment |
| CN114589205A (en) * | 2022-04-08 | 2022-06-07 | 燕山大学 | Method for determining online roll changing time node in strip rolling process |
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| CN105160390B (en) * | 2015-08-12 | 2018-01-12 | 江苏永钢集团有限公司 | Groove steel transportation amount on-line counting device and its application method |
| EP3358431A1 (en) * | 2017-02-07 | 2018-08-08 | Primetals Technologies Austria GmbH | General planning of production- and / or maintenanceplans |
| CN106694572B (en) * | 2017-02-28 | 2018-12-04 | 中冶华天工程技术有限公司 | On-line rolling technique adjustment system and method based on roll wear detection |
| CN110520805B (en) * | 2017-04-18 | 2022-12-06 | 首要金属科技德国有限责任公司 | Modeling optimization of process models |
| DE102019119989A1 (en) * | 2019-07-24 | 2021-01-28 | Aktien-Gesellschaft der Dillinger Hüttenwerke | Device and method for monitoring and / or controlling an industrial method for manufacturing a steel product |
| DE102020206477A1 (en) | 2020-05-25 | 2021-11-25 | Sms Group Gmbh | Maintenance planning system, method and computer program for determining maintenance measures for a production plant, in particular a production plant in the metal-producing industry, the non-iron or steel industry or the production of master alloys |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2588257B1 (en) | 2014-04-16 |
| CN103079721B (en) | 2015-10-21 |
| PL2588257T3 (en) | 2014-09-30 |
| WO2012025438A1 (en) | 2012-03-01 |
| EP2588257A1 (en) | 2013-05-08 |
| EP2422893A1 (en) | 2012-02-29 |
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