CN104028559B - Method for controlling width fluctuation of strip steel - Google Patents
Method for controlling width fluctuation of strip steel Download PDFInfo
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- CN104028559B CN104028559B CN201410253885.6A CN201410253885A CN104028559B CN 104028559 B CN104028559 B CN 104028559B CN 201410253885 A CN201410253885 A CN 201410253885A CN 104028559 B CN104028559 B CN 104028559B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 142
- 239000010959 steel Substances 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 238000003079 width control Methods 0.000 description 8
- 238000005098 hot rolling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification 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 technique field, particularly relates to a kind of method of control cincture steel width fluctuations.
Background technology
In hot rolling is produced, width is very important parameter in band steel appearance and size, and strip width control accuracy reflects the product quality of an iron and steel enterprise.Therefore, when steel grade, format change, control cincture steel width fluctuations is the key technology in hot rolling line production process.
When steel grade, format change, often occur being with steel developed width to exceed 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.Such as: when being with steel developed width to be less than target width control deviation lower limit width value, width compensation value can be increased; When being with steel developed width to be greater than target width control deviation upper limit width value, width compensation value can be reduced.
But existing this width compensation, accurately cannot control the width of band steel, cause the width fluctuations being with steel, and then cannot meet the requirement to strip width.
Summary of the invention
The invention provides a kind of method of control cincture steel width fluctuations, 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 control cincture steel width fluctuations, described method comprises:
Other according to the width self-learning parameter layer of band steel to be rolled, determine that the width compensation value layer of described band steel to be rolled is other, wherein, the width compensation value layer of described band steel to be rolled is not identical with the width self-learning parameter layer of described band steel to be rolled;
Other according to the width compensation value layer of described band steel to be rolled, from database, retrieve the width compensation reference value of described band steel to be rolled and the width difference reference value of described band steel to be rolled;
According to the width compensation reference value of described band steel to be rolled, the width difference reference value of described band steel to be rolled and datum width deviate, obtain the width compensation value that described band steel to be rolled will be arranged;
According to the width compensation value that described band steel to be rolled will be arranged, band steel to be rolled described in rolling, to control the width of described band steel to be rolled.
Preferably, described method also comprises: the width compensation value that will arrange according to described band steel to be rolled, obtains the developed width deviation of described band steel to be rolled in the operation of rolling.
Preferably, described method also comprises: the width compensation value that will be arranged by described band steel to be rolled, and the developed width deviation of described band steel to be rolled in the operation of rolling upgrades according to the other division rule write into Databasce of layer.
Preferably, the described width compensation reference value according to described band steel to be rolled, the width difference reference value of described band steel to be rolled and datum width deviate, obtain the width compensation value that described band steel to be rolled will be arranged, specifically comprise:
The width difference reference value of described band steel to be rolled deducts described datum width deviate, obtains deviation Reference amount;
The width compensation reference value of described band steel to be rolled deducts described deviation Reference amount, obtains the width compensation value that described band steel to be rolled will be arranged.
By one or more technical scheme of the present invention, beneficial effect of the present invention is as follows:
In the present invention, the width self-learning parameter layer that is other and band steel to be rolled of the width compensation value layer due to band steel to be rolled is not identical, therefore, after knowing that the width self-learning parameter layer of band steel to be rolled is other, just can know that the width compensation value layer of band steel to be rolled is other.And then in a database, do not find out the width compensation reference value of band steel to be rolled and the width difference reference value of band steel to be rolled according to the width compensation value layer of band steel to be rolled, finally calculate the width compensation value that band steel to be rolled will be arranged, for rolled band steel.Ensure that band steel is in the process of rolling, width difference is close to datum width deviation, and strip width is in rational scope
Accompanying drawing explanation
Fig. 1 is the flow chart of the method for control cincture steel width fluctuations in the embodiment of the present invention.
Detailed description of the invention
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, technical scheme is described in detail.
Enforcement principle of the present invention is as follows:
In the hot rolling, control width by target width, width offset, width compensation value, width self-learning parameter joint effect, and be addition relation.That is: width=target width+width offset+width compensation value+width self-learning parameter is controlled.And control the difference that width difference is control width and target width, deriving and control width difference by width offset, width compensation value, width self-learning parameter joint effect, is also addition relation.That is: width difference=width offset+width compensation value+width self-learning parameter is controlled.
Width offset is cure parameter, remains unchanged, so must ensure width compensation value and width self-learning parameter inverse change, and variable quantity is identical, and guarantee model cootrol width difference is stablized.
In general, whether width self-learning parameter uses according to constant width machine, steel race, width of plate slab, rolling strategy, subtracts wide amount and carry out layer and do not divide.Meet width compensation value and width self-learning parameter inverse change, and variable quantity is identical, then width compensation value just needs and width self-learning parameter has the other division rule of identical layer, and namely whether width compensation value parameter also uses according to constant width machine, steel race, width of plate slab, rolling strategy, subtracts wide amount and carry out layer and do not divide.
The embodiment of the present invention is by the influence factor of analysis and Control width, determine the influence factor controlling width difference, and by analyzing quantitative relation between each factor further, determine the condition making control width difference stable, namely ensure width compensation value and the reverse equivalent change of width self-learning parameter, determine that width compensation value needs and width self-learning parameter has the other division rule of identical layer simultaneously.
Embodiment one:
In the embodiment of the present application, a kind of method of control cincture steel width fluctuations is provided.
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 within 20mm (20mm refers to the average of entire volume strip width) and can production requirement be met.And fluctuate within the scope of this in order to strict control cincture steel, then datum width deviate can be set as 10mm.
Therefore, object of the present invention, comes to control strip width according to datum width deviate exactly.For this reason, before actual rolling, first need the width compensation value determining that band steel to be rolled will be arranged, and then according to the width compensation value rolling band steel to be rolled that band steel to be rolled will be arranged, to control the width of band 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 of band steel to be rolled, determine that the width compensation value layer of band steel to be rolled is other.
In concrete implementation process, the width compensation value layer of band steel to be rolled width self-learning parameter layer that is other and band steel to be rolled is not identical, therefore, after knowing that the width self-learning parameter layer of band steel to be rolled is other, just can know that the width compensation value layer of band steel to be rolled is other.
S102, other according to the width compensation value layer of band steel to be rolled, from database, retrieve the width compensation reference value of band steel to be rolled and the width difference reference value of band steel to be rolled.
In concrete implementation process, the width compensation value layer of band steel to be rolled does not confirm, does not so divide condition according to layer, the width compensation reference value of the band steel to be rolled just can preserved in reading database, and the strip width deviation Reference value of band steel to be rolled.In addition, these numerical value can also be presented at width compensation value is set human-computer interaction interface on, as being supplied to user with reference to value, make user carry out the setting of band steel to be rolled.
S103, according to the width compensation reference value of band steel to be rolled, the width difference reference value of band steel to be rolled and datum width deviate, obtain the width compensation value that band steel to be rolled will be arranged.
In concrete implementation process, the step in S103 can be divided into two steps to carry out, specific as follows:
The first step: the width difference reference value of band steel to be rolled deducts datum width deviate, obtains deviation Reference amount; Suppose that deviation Reference amount is a, so the width difference reference value-datum width deviate of a=band steel to be rolled.
Second step: the width compensation reference value of band steel to be rolled deducts deviation Reference amount, obtains the width compensation value that band steel to be rolled will be arranged.Width compensation reference value-a of the width compensation value that band steel to be rolled will be arranged=band steel to be rolled.
S104, according to the width compensation value that band steel to be rolled will be arranged, rolling band steel to be rolled, to control the width of band steel to be rolled.
And in the process of rolling, except the width compensation value that band steel to be rolled will be arranged, the factor of influence zone steel developed width deviation also comprises: vertical rolls footpath wearing and tearing etc.Under the acting in conjunction of this series of influence factors, the developed width deviation of band steel to be rolled in the operation of rolling can be obtained.That is, the present embodiment width compensation value that will can also arrange according to band steel to be rolled, obtains the developed width deviation of band steel to be rolled in the operation of rolling.
Preferably, in order to control strip width more flexibly, the method also comprises: the width compensation value that will be arranged by band steel to be rolled, and the developed width deviation of band steel to be rolled in the operation of rolling upgrades according to the other division rule write into Databasce of layer.
The present embodiment is when steel grade, format change, consider the width difference reference value of band steel to be rolled and the magnitude relationship of datum width deviate, determine deviation Reference amount, the width compensation value that band steel to be rolled will be arranged is determined by deviation Reference amount, thus other for the layer that width control system is stable, effectively can solve strip width fluctuation problem; Layer width control system not being realized to stability contorting is other, can determine the width compensation value that band steel to be rolled will be arranged accurately and effectively, thus is controlled in the reasonable scope by width difference.
Below by a typical application example, set forth the technical scheme of the present embodiment further: at certain 1580 hot rolling line, during SDC01 by width of plate slab 1250mm rolling 1160mm, use constant width machine, and adopt 3+3 rolling strategy to produce.In general, width is the band steel of 1160mm, and width can fluctuation in the scope of [0,20] mm.Namely width is the widest can reach 1180mm.In order to meet production requirement, in the process of rolling, determine that datum width deviate is then 10mm.
First, determine that the width self-learning parameter layer of slab is other.Do not determine that the width compensation value layer of slab is other by the width self-learning parameter layer of slab.Then, do not divide condition according to layer, the width compensation reference value of the slab preserved in reading database, and the width difference reference value of slab.Through searching database, the width compensation reference value retrieving 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, can result for retrieval be shown on human-computer interaction interface, be operated by user.
And in the present embodiment, datum width deviate is 10mm, so deviation Reference amount a=16mm-10mm=6mm, by the difference of developed width deviate during last rolled slab with the datum width deviate of this rolling, as deviation Reference amount.Then the width compensation reference value 3mm of slab is deducted the width compensation value-3mm that deviation Reference amount a will be arranged as slab.Then, based on-3mm, slab is rolled.And in the process of rolling, in conjunction with other factors (as vertical rolls footpath wearing and tearing etc.) affecting strip width, obtaining the developed width deviate of slab when rolling is 10.5mm, close to the datum width deviate 10mm originally required.Therefore successfully achieve when previous width control system when steel grade, format change is not reached stability contorting, determine width compensation value reference value accurately and effectively, width difference controls in the reasonable scope the most at last.And if be that 3mm is arranged according to the width compensation reference value of script slab, differed 6mm with the width compensation value-3mm that slab will be arranged, when slab rolling, developed width deviate is still 16mm, comparatively large with the datum width deviate 10mm deviation originally required, strip width is undesirable.
After slab rolling terminates, then the developed width deviation 10.5mm of the width compensation value-3mm that will be arranged by slab 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, the width self-learning parameter layer that is other and band steel to be rolled of the width compensation value layer due to band steel to be rolled is not identical, therefore, after knowing that the width self-learning parameter layer of band steel to be rolled is other, just can know that the width compensation value layer of band steel to be rolled is other.And then in a database, other according to the width compensation value layer of band steel to be rolled, find out the width compensation reference value of band steel to be rolled and the width difference reference value of band steel to be rolled, finally calculate the width compensation value that band steel to be rolled will be arranged, for rolled band steel.Ensure that band steel is in the process of rolling, width difference is close to datum width deviation, and strip width is in rational scope.
Although described the preferred embodiment of the application, one of ordinary skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various change and modification to the application and not depart from the spirit and scope of the application.Like this, if these amendments of the application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these change and modification.
Claims (3)
1. a method for control cincture steel width fluctuations, is characterized in that, described method comprises:
Other according to the width self-learning parameter layer of band steel to be rolled, determine that the width compensation value layer of band steel to be rolled is other, wherein, the width compensation value layer of described band steel to be rolled is not identical with the width self-learning parameter layer of described band steel to be rolled;
Other according to the width compensation value layer of described band steel to be rolled, from database, retrieve the width compensation reference value of described band steel to be rolled and the width difference reference value of described band steel to be rolled;
According to the width compensation reference value of described band steel to be rolled, the width difference reference value of described band steel to be rolled and datum width deviate, obtain the width compensation value that described band steel to be rolled will be arranged; Specifically comprise: the width difference reference value of described band steel to be rolled deducts described datum width deviate, obtain deviation Reference amount; The width compensation reference value of described band steel to be rolled deducts described deviation Reference amount, obtains the width compensation value that described band steel to be rolled will be arranged;
According to the width compensation value that described band steel to be rolled will be arranged, band steel to be rolled described in rolling, to control the width of described band steel to be rolled.
2. the method for a kind of control cincture steel width fluctuations as claimed in claim 1, it is characterized in that, described method also comprises:
According to the width compensation value that described band steel to be rolled will be arranged, obtain the developed width deviation of described band steel to be rolled in the operation of rolling.
3. the method for a kind of control cincture steel width fluctuations as claimed in claim 2, it is characterized in that, described method also comprises:
By the width compensation value that described band steel to be rolled will be arranged, the developed width deviation of described band steel to be rolled in the operation of rolling upgrades according to the other division rule write into Databasce of layer.
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| CN201410253885.6A CN104028559B (en) | 2014-06-10 | 2014-06-10 | Method for controlling width fluctuation of strip steel |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104475860B (en) * | 2014-12-31 | 2017-02-22 | 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 |
| CN104815849B (en) * | 2015-04-07 | 2016-11-30 | 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 |
| CN105642676B (en) * | 2016-03-07 | 2017-08-08 | 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 |
| 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 |
| CN108687138B (en) * | 2018-05-22 | 2020-07-03 | 攀钢集团西昌钢钒有限公司 | Method and system for controlling width of hot continuous rolling strip steel, computer equipment and 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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