CN103079721B - There is the operation method of the milling train of the rolled piece smooth for rolling of Roll Wear Prediction function - Google Patents
There is the operation method of the milling train of the rolled piece smooth for rolling of Roll Wear Prediction function Download PDFInfo
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- CN103079721B CN103079721B CN201180041473.0A CN201180041473A CN103079721B CN 103079721 B CN103079721 B CN 103079721B CN 201180041473 A CN201180041473 A CN 201180041473A CN 103079721 B CN103079721 B CN 103079721B
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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 present invention relates to a kind of milling train of the rolled piece smooth for rolling (1), this milling train has at least one mill stand with roll (3) (2).This smooth rolled piece (1) of rolling in mill stand (2).Rolled piece (1) period that rolling is smooth in the mill stand (2), detect smooth rolled piece (1) and/or mill stand (2) actual amount (I).From the initial state of at least one roll (3) of mill stand (2), by wear model (8), according to the actual amount (I) that the roll run duration up to now at corresponding roll (3) detects, measure the current actual wear amount (V) of the expection of this at least one roll (3).From current actual wear amount (the V) of expection, by wear model (8), according to the actual amount of expected future of smooth rolled piece (1) wanting rolling future, at least one position (P) that the roll for future runs measures the actual wear amount (V ') of the expected future of at least one roll (3).The position (P) that operator (9) for milling train provides following roll to run, the actual wear amount (V ') of expected future and/or the information that at least one derives from these values.
Description
Technical field
The present invention relates to a kind of operation method of milling train of the rolled piece smooth for rolling, this milling train has at least one mill stand with roll,
-wherein, the rolled piece that rolling is smooth in mill stand,
-wherein, during the rolled piece that rolling is smooth in mill stand, 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 comprising machine code, the computer for controlling that this machine code can be used to the milling train of the smooth rolled piece of rolling directly performs, and makes computer for controlling run milling train according to this operation method by computer for controlling execution machine code.
The invention still further relates to a kind of computer for controlling of milling train of the rolled piece smooth for rolling, wherein, this computer for controlling designs like this, that is, make computer for controlling run milling train according to this operation method.
The invention still further relates to a kind of milling train of the rolled piece smooth for rolling, this milling train is equipped with this computer for controlling.
Background technology
Foregoing is such as known from JP 04 017 920 A.
When rolled metal, there are wearing and tearing in the roll of mill stand.The degree of the wearing and tearing occurred and different relating to parameters.The degree of such as wearing and tearing depend on roll type (working roll, backing roll ...), the material of the type (cold rolling or hot rolling) of rolling, the arrangement of roll in milling train (first, second, third mill stand of milling train etc.), rolled piece (steel, aluminium, copper ...), the material of roll (cast iron, cast steel, high speed steel ...) etc.
Wearing and tearing have impact to the quality of the smooth rolled piece of rolling.Particularly must consider wearing and tearing by correspondingly correcting (also may relate to moulding and flatness aspect) to installation site, and compensate as far as possible.Must regularly replace in addition and roll of again polishing.
Only have when relevant roll is removed from mill stand and can be accurately measured, just likely directly measure the wear extent of roll.In the ongoing operation of rolling, can not directly measure roll wear amount on the contrary.However, it is known that detect the actual amount of the operation of rolling, and calculate roll wear amount in real time by wear model.By wear model, depend on that the section of the rolling of rolled piece, the change curve of roll-force in this section of section etc. measure the current wear extent of the expection of corresponding roll.The control system that wear model is other provides the current wear extent of the expection of mensuration, such as, for correspondingly correcting installation.
It is also known that milling train startup stage adjustment wear model to adapt to actual conditions.But, just operationally but cannot carry out checking or also can not correcting this adjustment.
As has already been mentioned, the roll of mill stand must be regularly replaced.In the prior art, be with conservative mode determination replacing construction interval.The replacing of roll is carried out too early instead of excessively late, to guarantee that the rolled piece of rolling conforms with the regulations, and satisfactory specification.But this method result in needs changes roll relatively continually, and cause the milling train downtime be associated with it.Therefore as a result, the productivity ratio of milling train work reduces.Particularly continuous machine row (Kontistra β en) and strand Direct Rolling equipment, especially there is continuous service ability strand Direct Rolling equipment in particularly like this.
Self-evidently, roll replacing construction interval can certainly be extended.But, in this case, exist roll replacing not long ago time wearing and tearing too large danger, to such an extent as to the no longer satisfactory specification of the rolled piece of rolling.
Another problem is, can not put at any time and changes or meaningfully change roll, but can only carry out between the smooth rolled piece of two successive.
Summary of the invention
The object of the invention is to, the multiple possibility can predicting the wear extent in the future of at least one roll of the mill stand of milling train is in a reliable fashion provided.
This object is realized by the operation method according to milling train of the present invention.
Be designed to according to the present invention, form the operation method of the described type of beginning in the following manner,
-from expection current actual wear measure send out, by wear model, according to the actual amount of expected future of smooth rolled piece wanting rolling future, the actual wear amount of the expected future of at least one at least one roll of position finding that the roll for future runs, and
-provide following roll to run for the operator of milling train position, the actual wear amount of expected future and/or information that at least one derives from these values.
Minimize in configuration mode of the present invention, such as can preset a fixed position that following roll runs-such as next want the smooth rolled piece of rolling end-, and the actual wear amount of the expected future on this position can be measured.Alternatively can preset the reference wear extent of definition, and be determined at the reference wear extent which position that following roll runs there will be expection.But be preferably designed on the contrary, the multiple positions run for the roll in future measure the actual wear amount of the expected future of at least one roll respectively, and the function of the position that the operator for milling train provides the actual wear amount of expected future to run as the roll in future, or the position providing following roll to run is as the function of the actual wear amount of expected future.
Also be designed in the preferred design of one of the present invention, at least one position and reference position of determining the actual wear amount of expected future for it are compared, and/or by least one position finding, the actual wear amount of expected future compares with reference to wear extent, and depend on that comparative result determines, whether change at least one roll, or whether continue the smooth rolled piece of rolling.
If adjust this wear model, then can also work better according to method of the present invention.Therefore, be preferably designed to,
-after pulling down at least one roll, the real data of the current actual wear amount inputting the expection of at least one roll to correcting value determinator and the real actual wear amount characterizing at least one roll,
-correcting value determinator measures at least one correcting value by the current actual wear amount of expection and real actual wear amount being compared, and
-correcting value determinator adjusts wear model according at least one correcting value, makes after adjusting wear model, considers this at least one correcting value when measuring the actual wear amount of the current of expection and/or expected future.
In order to this object, will the Grinding machine shops of at least one roll be come from, characterize the real data input correcting value determinator of real actual wear amount, and/or automatically input.
In the simplest situations, correcting value determinator, when measuring at least one correcting value, only considers the current actual wear amount of the expection on the centre position of at least one roll and real actual wear amount.But achieve better effect be, correcting value determinator when measuring at least one correcting value, the current actual wear amount of the expection beyond the centre position also considering at least one roll extraly and real actual wear amount-such as about rolling width function-.
Particularly when the characteristic according to smooth rolled piece rolled till pulling down at least one roll, whether determine and when in what manner wear model being adjusted in this case, just can reliably adjust wear model.Especially when the various different material of rolling or material that is special, general little use, therefore make to adjust may unreliable time, can stop adjusting.Also adjusting for special material can be realized.
Preferably wear model is distributed to corresponding roll individually.
In several cases, at least one roll alternatively can be loaded in one of them mill stand in multiple mill stands of milling train.In this case, preferably consider in wear model load this roll in which mill stand in mill stand.
In several cases, at least another mill stand of milling train is arranged in the mill stand front enclosing at least one roll wherein.In most cases, in another mill stand, always enclose the roll of a same-type.But in limited instances, in this another mill stand, alternatively load another roll of a wherein type of at least two types.In this case, preferably consider in wear model, in another mill stand, load another roll of which kind of type.
Also be designed in a kind of preferred design of the present invention, the temperature of that wear model considers roll when measuring the actual wear amount of the current of expection and/or expected future and/or smooth rolled piece.
Also realized by the computer program starting described type according to object of the present invention.In this case, computer program designs like this, that is, computer for controlling implement to have according to operation method of the present invention operation method in steps.
This object is also realized by the computer for controlling of the milling train for the smooth rolled piece of rolling, and computer for controlling designs like this, that is, computer for controlling operationally implements this operation method.
This object is also by realizing for the milling train of the smooth rolled piece of rolling, and this milling train is equipped with this computer for controlling.
Accompanying drawing explanation
Other advantage and details draw from following connection with figures the description of embodiment.Shown in schematic diagram:
Fig. 1 schematically shows the milling train for the smooth rolled piece of rolling,
Fig. 2 illustrates flow chart,
Fig. 3 and 4 illustrates the possible output content being supplied to operator,
Fig. 5 illustrates flow chart,
Fig. 6 illustrates the possible output content being supplied to 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.
Detailed description of the invention
According to Fig. 1, the milling train for the smooth rolled piece 1 of rolling has multiple mill stand 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 at least comprise working roll, often also include other roll, such as 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.A unique mill stand 2 is only there is time minimum.In addition also mandatory requirement conveyer belt direction of advance x is always not constant, as shown in fig. 1.Alternatively may carry out reverse rolling, particularly when milling train only have a unique mill stand 2 or only two mill stands 2 time.
According to Fig. 1, in milling train, the smooth rolled piece 1 of rolling is band.But alternatively, this rolled piece also can be another kind of smooth rolled piece 1, such as sheet material or steel plate.
Milling train is equipped with the computer for controlling 4 controlling milling train.Computer for controlling 4 is typically designed to the device of available software programming.Therefore, the working method of computer for controlling 4 determines the computer program 5 that computer connects (not shown) or storage medium 6 input control computer 4 by by computer.In storage medium 6, computer program 5 be with can the form-be in most cases that reads of machine Electronically-store.According to Fig. 1, storage medium 6 is designed to usb memory stick.But this design is purely exemplary.Other design arbitrary of storage medium 6 is possible, such as, be designed to CD-ROM or SD storage card.
Computer for controlling 4 utilizes computer program 5 to programme.Computer program 5 comprises the machine code 7 that directly can be performed by computer for controlling 4.The working method of computer for controlling 4 is determined in the execution of machine code 7.Performing machine code 7 by computer for controlling 4 makes computer for controlling 4 run milling train according to a kind of operation method contacting the detailed description of Fig. 2 below.Computer program 5 is utilized just to make correspondingly to construct computer for controlling 4 for computer for controlling 4 is programmed.
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 present invention set forth by the working roll 3 contacted below in addition above the 3rd mill stand 2 in Fig. 1.But, thisly determine it is pure arbitrary.The present invention can be applied on other roll 3 each of each mill stand 2 in a similar fashion.
According to Fig. 2, computer for controlling 4 receives at least one following actual amount wanting the expected future of the smooth rolled piece 1 of rolling in step sl.These actual amounts are such as rolling shedule data, or rolling and have and the data of smooth rolled piece 1 of the following characteristic wanting the smooth rolled piece 1 of rolling similar.Rolling computer for controlling 4 being received in step sl to the smooth rolled piece 1 of the actual amount of its expected future also just not yet starts.
What relate to all the time below is rolling shedule data, instead of the actual amount of expected future, because this is the most frequent situation according to estimation.
Rolling shedule data can be the data of a unique smooth rolled piece 1.Can be alternatively the rolling shedule data of multiple smooth rolled piece 1.
The rolling shedule data received can be the next data wanting the smooth rolled piece 1 of rolling.Can be alternatively the data of that want the rolling afterwards of the smooth rolled piece 1 of rolling at the next one, smooth rolled piece 1.In the case of the latter, computer for controlling 4 perform after step S1 usual known all before should the rolling shedule data of smooth rolled piece 1 of rolling.Here is a numerical example:
That completed rolling is smooth rolled piece a, b and c.At present just in rolling is smooth rolled piece d.In step sl, computer for controlling 4 can receive the rolling shedule data of smooth rolled piece e.Alternatively, computer for controlling 4-such as-the rolling shedule data of smooth rolled piece g and h can be received in step sl.In this case, the rolling shedule data of computer for controlling 4 smooth rolled piece e and f of known not yet rolling usually.
Rolling shedule data comprise on the one hand the setting that be used for the smooth accordingly rolled piece 1 of rolling of milling train, and example is reduction in pass as desired.In addition, rolling shedule data yet comprise data, such as its width and the temperature thereof of smooth rolled piece 1, and the rolling condition of expection, such as roll-force and roll torque.
In step s 2, computer for controlling 4 measures the actual wear amount V ' of expected future from least one position P that the roll that the current actual wear amount V of expection is future runs.By the wear model 8 of roll 3, realize the step S2 measured according to the rolling shedule data of the smooth rolled piece 1 wanting rolling future.
Wear model 8 is that itself is known.This wear model can be such as in the prior art for measuring that model of the current actual wear amount V of expection continuously.
" roll operation " this concept is known for each professional and technical personnel.This concept refer to each different smooth rolled piece 1 by means of observed roll 3 rolling-and in the roll in future runs-the respective length that also will be rolled.Can imagine the image that roll runs like this, just look like that smooth rolled piece 1 is slack wherein enclosing in the rolling gap of observed roll 3 of mill stand 2, and corresponding mill stand 2 moves along smooth rolled piece 1 during rolling.When reverse rolling, the correspondingly transition count direction when each reverse certainly, makes the length of rolling be the monotonically increasing function of time.
In the framework of step S2, as prerequisite is the current actual wear amount V of known expection.Also to inquire into the mensuration of the current actual wear amount V to expection later.
Contact step S2, " future wants the smooth rolled piece of rolling " this concept also has all the meaning of the not yet smooth rolled piece 1 of rolling.In a similar fashion, " the current actual wear amount of expection " this concept refers to the smooth rolled piece 1 of all rollings.Here is an example:
Suppose-pure exemplarily-smooth rolled piece a, b and c be rolling.With regard to observed roll 3, smooth rolled piece d has been rolled 30%, also has 70% not yet rolling.The actual wear amount V ' of expected future should be measured on the end of smooth rolled piece e.In this case, " the current actual wear amount of expection " this concept refers to the wearing and tearing expected after the smooth rolled piece d of the smooth rolled piece a of rolling, b and c and 30%.In step s 2, from this actual wear amount V, first use the rolling shedule data of rolled piece d, on the end at rolled piece d, measure the actual wear amount V ' of expected future.Then from this actual wear amount V ', according to the actual wear amount V ' of the expected future of rolling shedule data determination after the rolled piece e that rolling is smooth of smooth rolled piece e.
In step s3, the operator 9-that computer for controlling 4 is milling train answers the requirement of operator 9-provide at least one information.Such as, computer for controlling 4-is shown in Fig. 3-can demonstrate for operator 9, and on certain predetermined position P that the roll in future runs, expection has the actual wear amount V ' in what kind of future.In this case, such as can for computer for controlling 4 regularly preset or be the position P that computer for controlling 4 presets this predetermined future by operator 9.Alternatively or in addition to, an information can be exported according to shown in Fig. 4 to operator 9 in step s3, point out on which position P of running at the roll in future, expection has the actual wear amount V ' in predetermined future.In this case, can be such as the actual wear amount V ' that computer for controlling 4 presets predetermined future regularly, or be preset by operator 9.Also information that can show other, that derive from these values.Such as when the end that the next one wants the smooth rolled piece 1 of rolling exceeding the reference wear extent that certain is preset, computer for controlling 4 can give the alarm.This can contact Fig. 7 and 8 and more at large set forth below.Computer for controlling 4 such as also can measure and export the following maximum permission width wanting the smooth rolled piece 1 of rolling.
In step s 4 which, computer for controlling 4 checks ,-whether carry out roll replacing with reference to observed roll 3-.If so, roll replacing is carried out so in step s 5.Step S5 only draws with dotted line in fig. 2, this is because although must consider the roll 3 that roll replacing itself-namely dismantle uses so far and load another roll 3-in the flow process of Fig. 2, this work be can't help computer for controlling 4 and performed.
In step s 6, computer for controlling 4 initializes wear model 8.In addition, the current actual wear amount V of expection is set to initial state by computer for controlling 4 in step s 6, and wherein, the value of roll 3 that is new or that again polished such as is set to zero, otherwise is set to value that is corresponding, non-zero.
If do not change roll, so computer for controlling 4 is transitioned into step S7 from step S4.In the step s 7, computer for controlling 4 pairs of milling trains control.(in addition also) makes smooth rolled piece 1 be rolled in the observed mill stand 2 of milling train thus.
During the rolled piece 1 that rolling is smooth in observed mill stand 2, detect smooth rolled piece 1 and/or mill stand 2 actual amount I.Such as can detect roll-force, roll torque, strip tension at the front of observed mill stand 2 and/or rear, input and/or the thickness of strip, rolling gap etc. that are exporting.Computer for controlling 4 receives the actual amount I detected in step s 8.Computer for controlling 4 stores actual amount I in step s 9, thus provides it to the evaluation work in later stage.
In step slo, computer for controlling 4 measures the current actual wear amount V of (new) expection.So computer for controlling 4 is just transitioned into step S11.In step s 11, computer for controlling 4 checks whether to it providing new rolling shedule data.According to the check result of step S11, computer for controlling 4 is back to step S1 or step S2.
Computer for controlling 4 measures the current actual wear amount V of the new expection of observed roll 3 in step slo.Computer for controlling 4 is from the actual wear amount V provided of observed roll 3, measure the wearing and tearing increment δ V that increases progressively for correspondingly performing step S7 by wear model 8, and the wearing and tearing increment δ V increased progressively is added on the current actual wear amount V that provides.Result equals the current actual wear amount V of new expection.
Based on described step, from the initial state of observed roll 3, the wearing and tearing increment δ V phase Calais little by little by increasing progressively accordingly measures the current actual wear amount V of expection.Therefore, computer for controlling 4 measures the current actual wear amount V of expection from the initial state of observed roll 3.
The wearing and tearing increment δ V increased progressively measures by wear model 8.The actual wear amount V ' of expected future also measures by wear model 8.In order to these two objects, wear model 8 can be designed as the wear model of integration.That is, be no matter current actual wear amount V in order to measure expection or same wear model 8 can be used in order to the actual wear amount V ' measuring following expection.Alternatively, wear model 8 can have two sub-models different from each other, and wherein, a sub-model is for measuring the current actual wear amount V of expection, and another sub-model is for measuring the actual wear amount V ' of expected future.But that no matter takes in two kinds of ways is any, all by wear model 8 according to detect respectively and the actual amount I that received by computer for controlling 4 measure the wearing and tearing increment δ V increased progressively.
As long as there are needs, computer for controlling 4 just also can be considered except actual amount I in order to the current actual wear amount V measuring expection for just in the rolling shedule data of the smooth rolled piece 1 of rolling, such as, just at the width of the smooth rolled piece 1 of rolling.But following rule is effective, that is, the actual amount I detected has precedence over the corresponding amount provided from rolling shedule, and at least will detect roll-force.As a result, therefore computer for controlling 4 measures the current actual wear amount V of expection according to the actual amount I detected at the roll run duration up to now of observed roll 3.
Fig. 5 illustrates the preferred design of the one of the step S2 shown in Fig. 2 and S3.According to Fig. 5, computer for controlling 4 is not only the actual wear amount V ' that certain specific position P that following roll runs measures the corresponding expected future of observed roll 3, and be the corresponding position P that the actual wear amount V ' of certain specific expected future measures following roll operation.Or rather, by according to the computer for controlling 4 of Fig. 5 in the step s 21 (design of step S2 shown in=Fig. 2) be the actual wear amount V ' that multiple position P that following roll runs measure the expected future of observed roll 3 respectively.In step S22 (design of step S3 shown in=Fig. 2), the function (or vice versa) of the position P that the operator 9 that computer for controlling 4 is milling train provides the actual wear amount V ' of expected future to run as the roll in the future of observed roll 3.Such as, computer for controlling 4 can to operator 9 export corresponding form or corresponding chart-see Fig. 6 example-.
Fig. 7 illustrates the design that the another kind of step S2 shown in Fig. 2 and S3 is possible.The design of Fig. 7 as the replacement of the design of Fig. 5 or additionally can be achieved.
According to Fig. 7, for computer for controlling 4 has preset the actual wear amount V ' of predetermined expected future.Computer for controlling 4 measures that position P of that following roll runs, it is expected to this future for it actual wear amount V ' in step S31.Compared with reference position P* in step s 32 by the position P of mensuration, such as want the end of the smooth rolled piece 1 of rolling to compare with the next one, its beginning is now not yet rolled in milling train.Step S32 more alternatively can be performed by computer for controlling 4 or be performed by operator 9.Can be computer for controlling 4 preset reference position P* regularly, or preset this reference position by operator 9.So same for the actual wear amount V ' of predetermined expected future.
Depend on the comparative result of step S32, in step S33, continue the smooth rolled piece of rolling 1, or in step S34, change observed roll 3.Step 34 itself-natch-performed by the operator 9 of milling train.But computer for controlling 4 can by exporting the corresponding execution requiring to support or cause step S34.
According to Fig. 8, alternatively step S41 and S42 step of replacing S31 and S32 can be used.In this case, for computer for controlling 4 presets that following roll runs, measure the actual wear amount V ' of expected future for it position P regularly.In this case, computer for controlling 4 measures the actual wear amount V ' of the expected future for this position P in step S41.In step S42, the actual wear amount V ' of the expected future of mensuration is compared with reference to wear extent V*.Other embodiment of Fig. 7 also can be applied in Fig. 8 similarly.
The way described so far has provided good result.But this way can also be improved further by following design of the present invention.Design described below can combine with aforesaid design in any way depending on demand, and also can combine in any way each other.
As has already been mentioned, the roll 3 of milling train must regularly replace.If pull down-grind away-roll 3, then the replacement as the roll 3 dismantled loads another-normally unworn-roll 3 immediately, and it is-Fig. 9-not long ago provided from warehouse 10 is provided.The roll 3 pulled down is admitted in Grinding machine shops 11 again polishes, measures, and is then placed into warehouse 10.
According to Fig. 9, for each roll 3 distributes their respective wear model 8 (or being at least the corresponding setup parameter of wear model 8) individually.Each wear model 8 (or corresponding parameter) followed by corresponding roll 3 and in 11, from there in warehouse 10, and turns back to therefrom in milling train from milling train to Grinding machine shops on its path.
As contacting Fig. 2 sets forth, initialize wear model 8 (the step S6 see in Fig. 2) when changing roll.Initial work such as can be designed to as contacting Figure 10 elaboration below.
If take out roll 3 from warehouse 10, and load in the mill stand 2 of milling train as the replacement of another roll 3, the roll 3 that load need not always be loaded in same mill stand 2.-exemplary-possibility is larger purely, first certain specific roll 3 is loaded in the 3rd mill stand 2, dismantle and polish laggard enter in warehouse 10, and to load afterwards in the 4th mill stand 2 of milling train.Therefore, according to Figure 10 preferably, computer for controlling 4 receives the information of the installation site about the new roll 3 installed in step s 51.So in step S52, computer for controlling 4 just correspondingly sets the wear model 8 being used for the new roll 3 installed.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 in its material and surface characteristic.Usually in certain specific mill stand 2, always load the roll 3 of same type.But in some cases, type can change.Such as alternatively can load by surfacing " high speed steel " (HSS in second mill stand 2 of Fig. 1, English: high speed steel) or by surfacing " high chrome " (HC, English: high chrome) or the roll be made up of surfacing " chill casting " (IC, English: indefinite chill).Demonstrate in practice, the wear extent of roll 3 may be also which kind of type is relevant with the loading roll 3 be arranged in direct preceding mill stand 2.Therefore preferably, computer for controlling 4 receives the information of the type of at least one roll 3 about the mill stand 2 being arranged in front in step S53, and in step S54, correspondingly set the parameter of wear model 8.Therefore, what also can consider to load in the mill stand 2 being arranged in front in wear model 8 is the roll 3 of which kind of type.
In addition furthermore it is possible that or even normal conditions-, in Grinding machine shops 11, before the roll 3 pulled down of again polishing, detect the real actual wear amount VE of roll.But, after pulling down the roll 3 of having ground away, also can also detect corresponding real data I '.Wear model 8 can be adjusted according to real actual wear amount VE.Contact Figure 11 below and elaboration is carried out to it.
Characterize the real data I ' of real actual wear amount VE-as has already been mentioned: usually by from Grinding machine shops 11-preferably input control computer 4 automatically.Owing to utilizing computer program 5 pairs of computer for controlling 4 to programme, so computer for controlling (in addition) achieves the correcting value determinator for wear model 8.According to Figure 11, computer for controlling 4 receives real data I ' in step S61.It therefrom measures real actual wear amount VE in step S62.
In step S63, the current actual wear amount V of real actual wear amount VE and expection compares by computer for controlling 4, that is with until the current actual wear amount V pulling down the expection that roll 3 increases compares.Computer for controlling 4 is that wear model 8 measures at least one correcting value K according to comparative result.In step S64, computer for controlling 4 adjusts 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-computer for controlling 4 measuring the actual wear amount V of current and/or expected future of expection, V ' time consider 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.But this is not mandatory required.Preferably only limited adjusting is carried out to wear model 8 or rather.In this case, computer for controlling 4 checks whether and adjust.In order to this object, computer for controlling 4 measures the value of amount of logic OK in step S65.The value of this amount of logic OK is asked in step S66.Depend on the value of amount of logic OK determines it is perform also to be to skip step S63 and S64.As the replacement of skipping step S63 and S64, computer for controlling 4 can also send corresponding warning to the operator 9 of milling train or another person.In this case, only have when the external world has manual control computer 4 to preset certain clear and definite corresponding instruction, just perform step S63 and S64.
Preferably basis-yes from observed roll 3 is loaded into for computer for controlling 4-until remove the characteristic of always rolled smooth rolled piece 1 from observed roll 3, measure the value of amount of logic OK.Therefore such as rolling special material-such as silicon steel-time, can the work of adjusting be stoped.Alternatively or extraly, can only have when certain predetermined material type of main rolling-such as carbon steel-time, or only have material blending constituent when rolling within predetermined percentage (carbon steel of such as at least 60%, the stainless steel of 20% to 30% and maximum 10% silicon steel) time, just allow to adjust.In the conceived case, also can distinguish according to rolled material in wear model 8.In this case, fixed adjusting can be carried out according to material.
In order to adjust wear model 8, namely at least one correcting value K (the step S63 in Figure 11) is measured, possible in the simplest situations according to Figure 12, the real actual wear amount VE on the centre position of the roll 3 making computer for controlling 4 the consideration observed and current actual wear amount V of expection.According to Figure 13, alternatively possible, allow computer for controlling 4 also consider extraly observed roll 3, the current actual wear amount V of at least one real actual wear amount VE at least one position beyond the centre position of observed roll 3 and corresponding expection.Computer for controlling 4 even can consider wear extent V, and VE is as the function about rolling width.
That carries out wear model 8 adjusts and need not forcibly be performed by computer for controlling 4.Alternatively also can adjust another device.If adjusted wear model 8 by another device, certainly also must to the current wear extent V of this another device input expection.When computer for controlling 4 is adjusted, just do not have this necessary, because computer for controlling 4 itself has measured the current wear extent V of expection, just know this situation yet.
Participate in the actual wear amount V to the current of expection and/or expected future, among the mensuration of V ', as has already been mentioned, have roll-force at least.In addition, length of rolled piece and the rolled piece width of wanting rolling in addition among to the mensuration of corresponding actual wear amount V, V ' is participated in.The speed also having roll to run and roller diameter also can together with participate in described actual wear amount V, V ' mensuration among.Under specific circumstances-see Fig. 2-wear model 8 can actual wear amount V described in measuring, V ' time also consider roll 3 and/or the temperature of smooth rolled piece 1.
The present invention has multiple advantage, particularly when adjusting, all keeps or even improve the prediction accuracy of the current actual wear amount V to expection within whole running times of milling train.In addition can optimize rolling dwell time, namely mount and dismount the time between roll 3.Usually the quality of the smooth rolled piece 1 of rolling can also be optimized.
More than describe only for being illustrated the present invention.Protection scope of the present invention should be determined by means of only appended claim on the contrary.
Claims (26)
1., for an operation method for the milling train of the smooth rolled piece (1) of rolling, described milling train has at least one mill stand with roll (3) (2),
-wherein, rolled piece (1) smooth described in rolling in described mill stand (2),
-wherein, and rolled piece (1) period smooth described in rolling in the described mill stand (2), detect described smooth rolled piece (1) and/or described mill stand (2) actual amount (I),
-wherein, from the initial state of at least one roll (3) of described mill stand (2), by wear model (8), according to the described actual amount (I) that the roll run duration up to now corresponding described roll (3) detects, measure the current actual wear amount (V) of the expection of roll described at least one (3)
-wherein, from current actual wear amount (the V) of described expection, by described wear model (8), according to the actual amount of expected future of smooth rolled piece (1) wanting rolling future, at least one position (P) run for the roll in future measures the actual wear amount (V ') of the expected future of roll described at least one (3)
-wherein, the information derived the actual wear amount (V ') of the described position (P) that the described position (P) providing following roll to run for the operator (9) of described milling train, the actual wear amount (V ') of described expected future and/or at least one roll from future run and described expected future.
2. operation method according to claim 1, it is characterized in that, the multiple positions (P) run for the roll in described future measure the actual wear amount (V ') of the described expected future of roll described at least one (3) respectively, and be the function of the described position (P) that the described operator (9) of described milling train provides the actual wear amount (V ') of described expected future to run as the roll in described future, or vice versa.
3. operation method according to claim 1 and 2, it is characterized in that, by determine for it actual wear amount (V ') of described expected future at least one described in position (P) and reference position (P*) compare, and/or by measure for position described at least one (P), the actual wear amount (V ') of described expected future compares with reference to wear extent (V*), and depend on that comparative result determines, whether change roll described at least one (3), or whether continue rolled piece (1) smooth described in rolling.
4. operation method according to claim 1 and 2, is characterized in that,
-after pulling down roll described at least one (3), the real data (I ') of the current actual wear amount inputting the described expection of roll described at least one (3) to correcting value determinator and the real actual wear amount (VE) characterizing roll (3) described at least one
-described correcting value determinator measures at least one correcting value (K) by the current actual wear amount (V) of described expection and described real actual wear amount (VE) being compared, and
-described correcting value determinator adjusts described wear model (8) according to correcting value described at least one (K), make after adjusting described wear model (8), correcting value described at least one (K) is considered when actual wear amount (V, the V ') of the current and/or expected future of the described expection of mensuration.
5. operation method according to claim 3, is characterized in that,
-after pulling down roll described at least one (3), the real data (I ') of the current actual wear amount inputting the described expection of roll described at least one (3) to correcting value determinator and the real actual wear amount (VE) characterizing roll (3) described at least one
-described correcting value determinator measures at least one correcting value (K) by the current actual wear amount (V) of described expection and described real actual wear amount (VE) being compared, and
-described correcting value determinator adjusts described wear model (8) according to correcting value described at least one (K), make after adjusting described wear model (8), correcting value described at least one (K) is considered when actual wear amount (V, the V ') of the current and/or expected future of the described expection of mensuration.
6. operation method according to claim 4, it is characterized in that, by come from the Grinding machine shops (11) of roll described at least one (3), the described real data (I ') that characterizes described real actual wear amount (VE) inputs described correcting value determinator.
7. operation method according to claim 5, it is characterized in that, by come from the Grinding machine shops (11) of roll described at least one (3), the described real data (I ') that characterizes described real actual wear amount (VE) inputs described correcting value determinator.
8. operation method according to claim 4, is characterized in that, automatically the described real data (I ') characterizing described real actual wear amount (VE) is inputted described correcting value determinator.
9. operation method according to claim 7, is characterized in that, automatically the described real data (I ') characterizing described real actual wear amount (VE) is inputted described correcting value determinator.
10. operation method according to claim 4, it is characterized in that, described correcting value determinator, when measuring correcting value (K) described at least one, considers the current actual wear amount (V) of the described expection on the centre position of roll (3) described at least one and described real actual wear amount (VE).
11. operation methods according to claim 9, it is characterized in that, described correcting value determinator, when measuring correcting value (K) described at least one, considers the current actual wear amount (V) of the described expection on the centre position of roll (3) described at least one and described real actual wear amount (VE).
12. operation methods according to claim 10, it is characterized in that, described correcting value determinator when measuring correcting value (K) described at least one, the current actual wear amount (V) of the described expection beyond the centre position also considering roll (3) described at least one extraly and described real actual wear amount (VE).
13. operation methods according to claim 11, it is characterized in that, described correcting value determinator when measuring correcting value (K) described at least one, the current actual wear amount (V) of the described expection beyond the centre position also considering roll (3) described at least one extraly and described real actual wear amount (VE).
14. operation methods according to claim 4, it is characterized in that, according to the characteristic of described smooth rolled piece (1) rolled till pulling down roll described at least one (3), whether determine and in what manner described wear model (8) adjusted in this case.
15. operation methods according to claim 13, it is characterized in that, according to the characteristic of described smooth rolled piece (1) rolled till pulling down roll described at least one (3), whether determine and in what manner described wear model (8) adjusted in this case.
16. operation methods according to claim 1 and 2, is characterized in that, described wear model (8) is distributed to corresponding described roll (3) individually.
17. operation methods according to claim 15, is characterized in that, described wear model (8) is distributed to corresponding described roll (3) individually.
18. operation methods according to claim 1 and 2, it is characterized in that, roll described at least one (3) is alternatively loaded in one of them mill stand in multiple mill stands (2) of described milling train, and consider in described wear model (8), in which mill stand in described mill stand (2), load described roll (3).
19. operation methods according to claim 17, it is characterized in that, roll described at least one (3) is alternatively loaded in one of them mill stand in multiple mill stands (2) of described milling train, and consider in described wear model (8), in which mill stand in described mill stand (2), load described roll (3).
20. operation methods according to claim 1 and 2, it is characterized in that, at least another mill stand (2) of described milling train is arranged in described mill stand (2) front enclosing roll described at least one (3) wherein, in described another mill stand (2), alternatively load another roll (3) of the wherein type at least two types, and consider in described wear model (8), in described another mill stand (2), load another roll (3) of which kind of type.
21. operation methods according to claim 19, it is characterized in that, at least another mill stand (2) of described milling train is arranged in described mill stand (2) front enclosing roll described at least one (3) wherein, in described another mill stand (2), alternatively load another roll (3) of the wherein type at least two types, and consider in described wear model (8), in described another mill stand (2), load another roll (3) of which kind of type.
22. operation methods according to claim 1 and 2, it is characterized in that, temperature that is described roll (3) considered by described wear model (8) when measuring actual wear amount (V, the V ') of current and/or expected future of described expection and/or described smooth rolled piece (1).
23. operation methods according to claim 21, it is characterized in that, temperature that is described roll (3) considered by described wear model (8) when measuring actual wear amount (V, the V ') of current and/or expected future of described expection and/or described smooth rolled piece (1).
24. 1 kinds of computer programs comprising machine code (7), the computer for controlling that described machine code can be used to the milling train of the smooth rolled piece of rolling (1) directly performs, and by described computer for controlling perform described machine code make described computer for controlling according to a kind of have operation method according to any one of claim 1 to 23 operation method in steps run described milling train.
25. 1 kinds of computer for controlling for the milling train of the smooth rolled piece (1) of rolling, it is characterized in that, described computer for controlling designs like this, make described computer for controlling according to a kind of have operation method according to any one of claim 1 to 23 operation method in steps run described milling train.
26. 1 kinds of milling trains for the smooth rolled piece (1) of rolling, it is characterized in that, described milling train is equipped with computer for controlling according to claim 25.
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 CN103079721A (en) | 2013-05-01 |
| CN103079721B true CN103079721B (en) | 2015-10-21 |
Family
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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) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US11493891B2 (en) | 2017-04-18 | 2022-11-08 | Primetals Technologies Germany Gmbh | Optimization of the modeling of process models |
| CN109365542B (en) * | 2018-09-20 | 2020-06-19 | 北京金自天正智能控制股份有限公司 | Method for calculating abrasion of rough rolling vertical roll |
| 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 |
| 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 |
| CN114589205B (en) * | 2022-04-08 | 2023-03-28 | 燕山大学 | Method for determining online roll changing time node in strip rolling process |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2588257B1 (en) | 2014-04-16 |
| PL2588257T3 (en) | 2014-09-30 |
| EP2588257A1 (en) | 2013-05-08 |
| CN103079721A (en) | 2013-05-01 |
| WO2012025438A1 (en) | 2012-03-01 |
| EP2422893A1 (en) | 2012-02-29 |
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