CN104028559A - Method for controlling width fluctuation of strip steel - Google Patents
Method for controlling width fluctuation of strip steel Download PDFInfo
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- CN104028559A CN104028559A CN201410253885.6A CN201410253885A CN104028559A CN 104028559 A CN104028559 A CN 104028559A CN 201410253885 A CN201410253885 A CN 201410253885A CN 104028559 A CN104028559 A CN 104028559A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 135
- 239000010959 steel Substances 0.000 title claims abstract description 135
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 238000005098 hot rolling Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000003079 width control Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000009916 joint effect Effects 0.000 description 2
- 241000931705 Cicada Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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Abstract
The invention discloses a method for controlling the width fluctuation of strip steel, and the width compensation value of the strip steel is the same as the width self-learning parameter layer of the strip steel, so that the width compensation value layer of the strip steel to be rolled can be obtained after the width self-learning parameter layer of the strip steel to be rolled is obtained. And then respectively finding out the width compensation reference value of the strip steel to be rolled and the width deviation reference value of the strip steel to be rolled according to the width compensation value layer of the strip steel to be rolled in a database, and finally calculating the width compensation value to be set for the strip steel to be rolled for rolling the strip steel. The width deviation of the strip steel is ensured to be close to the reference width deviation in the rolling process, and the width of the strip steel is in a reasonable range.
Description
Technical field
The application relates to hot rolling technical field, relates in particular to a kind of method of controlling strip width fluctuation.
Background technology
In hot rolling is produced, width is very important parameter in band steel appearance and size, the product quality of strip width control accuracy reflection Zhe Yige iron and steel enterprise.Therefore,, the in the situation that of steel grade, specification conversion, controlling strip width fluctuation is the key technology in hot rolling line production process.
When steel grade, specification conversion, often there is exceeding with steel developed width the problem of target width control deviation scope.Therefore, need to carry out width compensation to band steel, width compensation value is the important parameter that in strip width control procedure, operative employee can adjust flexibly.For example: when band steel developed width is less than target width control deviation lower limit width value, can increase width compensation value; When band steel developed width is greater than target width control deviation upper limit width value, can reduce width compensation value.
But existing this width compensation, cannot accurately control the width with steel, cause the width fluctuation with steel, and then cannot meet the requirement to strip width.
Summary of the invention
The invention provides a kind of method of controlling strip width fluctuation, to solve the larger technical problem of strip width fluctuation.
For solving the problems of the technologies described above, the invention provides a kind of method of controlling strip width fluctuation, described method comprises:
Other according to the width self-learning parameter layer with steel to be rolled, determine the described width compensation value layer with steel to be rolled other, wherein, the described width compensation value layer with steel to be rolled is not identical with the described width self-learning parameter layer with steel to be rolled;
Other according to the described width compensation value layer with steel to be rolled, from database, retrieve the described width compensation reference value with steel to be rolled and the described width difference reference value with steel to be rolled;
According to the described width compensation reference value with steel to be rolled, the described width difference reference value with steel to be rolled and datum width deviate, obtain the described width compensation value that will arrange with steel to be rolled;
According to the described width compensation value that will arrange with steel to be rolled, band steel to be rolled described in rolling, to control the described width with steel to be rolled.
Preferably, described method also comprises: according to the described width compensation value that will arrange with steel to be rolled, obtain described to be rolled with steel the developed width deviation in the operation of rolling.
Preferably, described method also comprises: by the described width compensation value that will arrange with steel to be rolled, described to be rolled with steel the developed width deviation in the operation of rolling according to the other division rule write into Databasce of layer, upgrade.
Preferably, described according to the described width compensation reference value with steel to be rolled, the described width difference reference value with steel to be rolled and datum width deviate, obtain the described width compensation value that will arrange with steel to be rolled, specifically comprises:
The described width difference reference value with steel to be rolled deducts described datum width deviate, obtains deviation reference quantity;
The described width compensation reference value with steel to be rolled deducts described deviation reference quantity, obtains the described width compensation value that will arrange with steel to be rolled.
By one or more technical scheme of the present invention, beneficial effect of the present invention is as follows:
In the present invention, because the width compensation value layer with steel to be rolled is not identical with the width self-learning parameter layer with steel to be rolled, therefore, after knowing that the width self-learning parameter layer with steel to be rolled is not, just can know that the width compensation value layer with steel to be rolled is other.And then in database, according to the width compensation value layer with steel to be rolled, do not find out the width compensation reference value with steel to be rolled and the width difference reference value with steel to be rolled, finally calculate the width compensation value that will arrange with steel to be rolled, for rolled band steel.Assurance is with steel in the process of rolling, and width difference approaches datum width deviation, and strip width is in rational scope
Accompanying drawing explanation
Fig. 1 is the flow chart of controlling the method for strip width fluctuation in the embodiment of the present invention.
The specific embodiment
In order to make the application the technical staff in the technical field more clearly understand the application, below in conjunction with accompanying drawing, by specific embodiment, present techniques scheme is described in detail.
Enforcement principle of the present invention is as follows:
In course of hot rolling, control width and be subject to target width, width offset, width compensation value, width self-learning parameter joint effect, and be addition relation.That is: control width=target width+width offset+width compensation value+width self-learning parameter.And control width difference, being the difference of controlling width and target width, deriving control width difference and be subject to width offset, width compensation value, width self-learning parameter joint effect, is also addition relation.That is: control width difference=width offset+width compensation value+width self-learning parameter.
Width offset is cure parameter, remains unchanged, thus must guarantee width compensation value and width self-learning parameter inverse change, and variable quantity is identical, and it is stable that guarantee model is controlled width difference.
In general, whether width self-learning parameter is used, steel family, width of plate slab, rolling strategy, is subtracted wide amount and carry out layer and Hua Fen not according to constant width machine.Meet width compensation value and width self-learning parameter inverse change, and variable quantity is identical, width compensation value just needs and width self-learning parameter has identical layer other division rule, and whether width compensation value parameter is also used, steel family, width of plate slab, rolling strategy, subtracted wide amount and carry out layer and Hua Fen not according to constant width machine.
The embodiment of the present invention is by the influence factor of analysis and Control width, determine the influence factor of controlling width difference, and by further analyzing quantitative relation between each factor, determine and make to control the stable condition of width difference, guarantee that the reverse equivalent of width compensation value and width self-learning parameter changes, determine that width compensation value needs and width self-learning parameter has the identical other division rule of layer simultaneously.
Embodiment mono-:
In the embodiment of the present application, provide a kind of method of controlling strip width fluctuation.
In the process of hot-strip, the width of every coiled strip steel all can have fluctuation to a certain degree.Exemplify, suppose that strip width deviation fluctuates and can meet production requirement within 20mm (20mm refers to the average of entire volume strip width).And for the strict band steel of controlling fluctuates within the scope of this, datum width deviate can be set as to 10mm.
Therefore, object of the present invention, comes strip width to control according to datum width deviate exactly.For this reason, before actual rolling, first need to determine the width compensation value that will arrange with steel to be rolled, and then according to the width compensation value rolling band steel to be rolled that will arrange with steel to be rolled, to control the width with steel to be rolled.
Please refer to Fig. 1 below, concrete way is as follows:
S101, other according to the width self-learning parameter layer with steel to be rolled, determine the width compensation value layer with steel to be rolled other.
In concrete implementation process, the width compensation value layer with steel to be rolled is not identical with the width self-learning parameter layer with steel to be rolled, therefore, after knowing that the width self-learning parameter layer with steel to be rolled is not, just can know that the width compensation value layer with steel to be rolled is other.
S102, other according to the width compensation value layer with steel to be rolled, from database, retrieve the width compensation reference value with steel to be rolled and the width difference reference value with steel to be rolled.
In concrete implementation process, the width compensation value layer with steel to be rolled is not confirmed, does not divide condition so according to layer, the width compensation reference value with steel to be rolled of preserving in just can reading database, and the strip width deviation reference value with steel to be rolled.In addition, these numerical value can also be presented on the human-computer interaction interface that width compensation value is set, and as offering user with reference to value, make user carry out the setting with steel to be rolled.
S103, according to the width compensation reference value with steel to be rolled, the width difference reference value with steel to be rolled and datum width deviate, obtain the width compensation value that will arrange with steel to be rolled.
In concrete implementation process, the step in S103 can be divided into two steps carries out, specific as follows:
The first step: the width difference reference value with steel to be rolled deducts datum width deviate, obtains deviation reference quantity; Suppose that deviation reference quantity is a, so the a=reference value-datum width deviate of the width difference with steel to be rolled.
Second step: the width compensation reference value with steel to be rolled deducts deviation reference quantity, obtains the width compensation value that will arrange with steel to be rolled.The width compensation value that will arrange with steel to be rolled=width compensation reference value-a with steel to be rolled.
S104, according to the width compensation value that will arrange with steel to be rolled, rolling band steel to be rolled, to control the width with steel to be rolled.
And in the process of rolling, except the width compensation value that will arrange with steel to be rolled, impact also comprises with the factor of steel developed width deviation: vertical rolls footpath wearing and tearing etc.Under the acting in conjunction of this series of influence factors, can obtain to be rolled with steel the developed width deviation in the operation of rolling.That is, the present embodiment can also be according to the width compensation value that will arrange with steel to be rolled, obtain to be rolled with steel the developed width deviation in the operation of rolling.
Preferably, in order more flexibly strip width to be controlled, the method also comprises: by the width compensation value that will arrange with steel to be rolled, to be rolled with steel the developed width deviation in the operation of rolling according to the other division rule write into Databasce of layer, upgrade.
The present embodiment is when steel grade, specification conversion, consider to be rolled with the width difference reference value of steel and the magnitude relationship of datum width deviate, determine deviation reference quantity, by poor reference quantity, determine the width compensation value that will arrange with steel to be rolled, thereby for width, control stable layer not, can effectively solve strip width fluctuation problem; For width, control and there is no to realize the stable layer of controlling not, can determine accurately and effectively the width compensation value that will arrange with steel to be rolled, thereby width difference is controlled in the reasonable scope.
Below by a typical application example, further set forth the technical scheme of the present embodiment: at certain 1580 hot rolling line, during by the SDC01 of width of plate slab 1250mm rolling 1160mm, use constant width machine, and adopt 3+3 rolling strategy to produce.In general, the band steel that width is 1160mm, width can fluctuation in the scope of [0,20] mm.Being that width is the widest can reach 1180mm.In order to meet production requirement, in the process of rolling, determining datum width deviate is 10mm.
First, determine that the width self-learning parameter layer of slab is other.The width compensation value layer of not determined slab by the width self-learning parameter layer of slab is other.Then, according to layer, do not divide condition, the width compensation reference value of the slab of preserving in reading database, and the width difference reference value of slab.Through searching database, the width compensation reference value that retrieves slab is 3mm, and the width difference reference value of slab is 16mm (width difference reference value is now the developed width deviate of last rolled slab).
In actual applications, result for retrieval can be shown on human-computer interaction interface, by user, be operated.
And in the present embodiment, datum width deviate is 10mm, deviation reference quantity a=16mm-10mm=6mm so, the difference of the developed width deviate while being about to last rolled slab and the datum width deviate of this rolling, as deviation reference quantity.Then the width compensation reference value 3mm of slab is deducted to width compensation value-3mm that deviation reference quantity a will arrange as slab.Then take-3mm, as basis, is rolled slab.And in the process of rolling, in conjunction with other factors (as the wearing and tearing of vertical rolls footpath etc.) that affect strip width, obtaining the developed width deviate of slab when rolling is 10.5mm, approaches the datum width deviate 10mm originally requiring.While therefore successfully having realized steel grade, specification conversion, previous width is controlled and is not reached in stable situation about controlling, and has determined accurately and effectively width compensation value reference value, and width difference is controlled in the reasonable scope the most at last.And if be that 3mm arranges according to the width compensation reference value of script slab, width compensation value-the 3mm that will arrange with slab has differed 6mm, and when slab rolling, developed width deviate is still 16mm, larger with the datum width deviate 10mm deviation originally requiring, strip width is undesirable.
After slab rolling finishes, then the developed width deviation 10.5mm of width compensation value-3mm that slab will be arranged and slab is according to the other division rule write into Databasce of layer, more data in new database.
By one or more technical scheme of the present invention, beneficial effect of the present invention is as follows:
In the present invention, because the width compensation value layer with steel to be rolled is not identical with the width self-learning parameter layer with steel to be rolled, therefore, after knowing that the width self-learning parameter layer with steel to be rolled is not, just can know that the width compensation value layer with steel to be rolled is other.And then in database, other according to the width compensation value layer with steel to be rolled, find out the width compensation reference value with steel to be rolled and the width difference reference value with steel to be rolled, finally calculate the width compensation value that will arrange with steel to be rolled, for rolled band steel.Assurance is with steel in the process of rolling, and width difference approaches datum width deviation, and strip width is in rational scope.
Although described the application's preferred embodiment, once one of ordinary skilled in the art obtains the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the application's scope.
Obviously, those skilled in the art can carry out various changes and modification and the spirit and scope that do not depart from the application to the application.Like this, if within these of the application are revised and modification belongs to the scope of the application's claim and equivalent technologies thereof, the application is also intended to comprise these changes and modification interior.
Claims (4)
1. a method of controlling strip width fluctuation, is characterized in that, described method comprises:
Other according to the width self-learning parameter layer with steel to be rolled, determine the width compensation value layer with steel to be rolled other, wherein, the described width compensation value layer with steel to be rolled is not identical with the described width self-learning parameter layer with steel to be rolled;
Other according to the described width compensation value layer with steel to be rolled, from database, retrieve the described width compensation reference value with steel to be rolled and the described width difference reference value with steel to be rolled;
According to the described width compensation reference value with steel to be rolled, the described width difference reference value with steel to be rolled and datum width deviate, obtain the described width compensation value that will arrange with steel to be rolled;
According to the described width compensation value that will arrange with steel to be rolled, band steel to be rolled described in rolling, to control the described width with steel to be rolled.
2. a kind of method of controlling strip width fluctuation as claimed in claim 1, is characterized in that, described method also comprises:
According to the described width compensation value that will arrange with steel to be rolled, obtain described to be rolled with steel the developed width deviation in the operation of rolling.
3. a kind of method of controlling strip width fluctuation as claimed in claim 2, is characterized in that, described method also comprises:
By the described width compensation value that will arrange with steel to be rolled, described to be rolled with steel the developed width deviation in the operation of rolling according to the other division rule write into Databasce of layer, upgrade.
4. a kind of method of controlling strip width fluctuation as claimed in claim 1, it is characterized in that, described according to the described width compensation reference value with steel to be rolled, the described width difference reference value with steel to be rolled and datum width deviate, obtain the described width compensation value that will set with steel to be rolled, specifically comprise:
The described width difference reference value with steel to be rolled deducts described datum width deviate, obtains deviation reference quantity;
The described width compensation reference value with steel to be rolled deducts described deviation reference quantity, obtains the described width compensation value that will arrange with steel to be rolled.
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Cited By (6)
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| CN104475860A (en) * | 2014-12-31 | 2015-04-01 | 中铝西南铝冷连轧板带有限公司 | Method for width setting of disc shear of edge cutting device during production of coiled material |
| CN104815849A (en) * | 2015-04-07 | 2015-08-05 | 首钢京唐钢铁联合有限责任公司 | Method for compensating precision of pinch roll position control system of sizing machine |
| CN105642676A (en) * | 2016-03-07 | 2016-06-08 | 首钢京唐钢铁联合有限责任公司 | Method for controlling width model by utilizing roll gap value of side guide plate |
| CN107185967A (en) * | 2017-06-30 | 2017-09-22 | 天津市中重科技工程有限公司 | A kind of SSC short stroke controls compensation method end to end of strip |
| CN108687138A (en) * | 2018-05-22 | 2018-10-23 | 攀钢集团西昌钢钒有限公司 | A kind of hot-continuous-rolling strip steel width control method and system, computer equipment, medium |
| CN115283436A (en) * | 2022-08-26 | 2022-11-04 | 广西广盛新材料科技有限公司 | Control method, system and control equipment for strip steel production |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475860A (en) * | 2014-12-31 | 2015-04-01 | 中铝西南铝冷连轧板带有限公司 | Method for width setting of disc shear of edge cutting device during production of coiled material |
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| CN107185967A (en) * | 2017-06-30 | 2017-09-22 | 天津市中重科技工程有限公司 | A kind of SSC short stroke controls compensation method end to end of strip |
| CN107185967B (en) * | 2017-06-30 | 2019-06-18 | 天津市中重科技工程有限公司 | A kind of strip SSC short stroke control compensation method end to end |
| CN108687138A (en) * | 2018-05-22 | 2018-10-23 | 攀钢集团西昌钢钒有限公司 | A kind of hot-continuous-rolling strip steel width control method and system, computer equipment, medium |
| CN115283436A (en) * | 2022-08-26 | 2022-11-04 | 广西广盛新材料科技有限公司 | Control method, system and control equipment for strip steel production |
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