CN106807756A - A kind of method and apparatus for controlling hot-strip head and tail width - Google Patents
A kind of method and apparatus for controlling hot-strip head and tail width Download PDFInfo
- Publication number
- CN106807756A CN106807756A CN201710181638.3A CN201710181638A CN106807756A CN 106807756 A CN106807756 A CN 106807756A CN 201710181638 A CN201710181638 A CN 201710181638A CN 106807756 A CN106807756 A CN 106807756A
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- Prior art keywords
- strip
- short stroke
- lateral pressure
- stroke curve
- pressure amount
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
This application discloses a kind of method and apparatus for controlling hot-strip head and tail width.The method chooses the strip of different lateral pressure amount specifications, rolled in the case of the short stroke function that do not come into operation, strip width data to all rollings are collected analysis, to rest in without in the case of any head and tail width control function, the true strain situation of strip head and tail width.Further, it is that different lateral pressure amounts sets up corresponding short stroke curve according to above-mentioned analysis.So, when being rolled, the difference according to lateral pressure amount chooses different short stroke curves.Compared with prior art, the present invention is adjusted according to practical condition to short stroke curve, so as to cover strip deformation end to end in all directions, reaches the purpose of effectively control strip head and tail width.
Description
Technical field
The application is related to technical field of steel rolling, more specifically to a kind of method for controlling hot-strip head and tail width
And device.
Background technology
The control of hot-strip head and tail width is a technical barrier, because strip is end to end during edge rolling, end
Position is influenceed by metal deformation flow, shows irregular deformation, and then strip head and tail width narrow rule or ultra-wide is occurred
Phenomenon.In order to eliminate or alleviating this phenomenon, present hot continuous rolling factory edger roll all has short stroke control function end to end, that is, exists
Edge rolling strip end to end when, by the opening degree of hydraulic means dynamic regulation edger roll, so as to improve strip width end to end.
At present, all there is roughing vertical roll short stroke control function end to end substantially on hot-rolling line at home.But to band
In the specific deformed shape of steel toe tail and corresponding compensation short stroke CURVE STUDY but seldom, the control of main flow is mainly 4 sections of foldings
Line, simple high order curve, this method do not have all situations that all standing strip deforms end to end, can only partly compensate band steel toe
, still there is strip head and tail width and does not conform in tail shape when causing the specification being not covered with.
The content of the invention
In view of this, the application provides a kind of method and apparatus for controlling hot-strip head and tail width, according to actual production
Situation, is adjusted to short stroke curve, so as to cover strip deformation end to end in all directions, reaches and effectively controls strip end to end
The purpose of width.
To achieve these goals, it is proposed that scheme it is as follows：
A kind of method for controlling hot-strip head and tail width, including：
Obtain the lateral pressure amount under current state；
The short stroke curve corresponding with the lateral pressure amount is transferred, the short stroke curve is based in no short stroke control
Strip in different pressure measurement rollings, set up by the head and tail width variation tendency of strip under function；
Based on the short stroke curve controlled strip operation of rolling end to end.
Preferably, the process of setting up of the short stroke curve includes：
Obtain multiple strip samples generated under without short stroke control function；
The strip sample not lower to same lateral pressure amount layer is analyzed, to determine the head and tail width change to the strip sample
Change trend；
Variation tendency end to end according to the strip sample sets up short stroke curve not corresponding with lateral pressure amount layer.
Preferably, the lateral pressure amount layer is an other scope of layer not with 10mm.
Preferably, the lateral pressure amount layer does not include：Less than or equal to 0,0~10mm, 10~20mm, 20~30mm, 30~
40mm, 40~50mm, 50~60mm, 60~70mm and more than 70mm.
Preferably, the operation of rolling based on the short stroke curve controlled strip end to end, also includes afterwards：
Head and tail width to the strip after rolling is analyzed, and the ginseng of the short stroke curve is adjusted based on analysis result
Number.
A kind of device of control hot-strip head and tail width, including：
Lateral pressure amount collecting unit, for obtaining the lateral pressure amount under current state；
Short stroke curve transfers unit, for transferring the short stroke curve corresponding with the lateral pressure amount, the short stroke
Curve is based on the strip under no short stroke control function, and, in different pressure measurement rollings, the head and tail width variation tendency of strip is built
It is vertical；
Control unit, for the operation of rolling based on the short stroke curve controlled strip end to end.
Preferably, also include：Short stroke curve sets up unit, for pre-building the short row corresponding with the lateral pressure amount
Journey curve；
The short stroke curve sets up unit to be included：
Sample collection module, for obtaining multiple strip samples generated under without short stroke control function；
Head and tail width mutation analysis module, for being analyzed to the not lower strip sample of same lateral pressure amount layer, with determination
To the head and tail width variation tendency of the strip sample；
Curve sets up module, for setting up not right with lateral pressure amount layer according to the variation tendency end to end of the strip sample
The short stroke curve answered.
Preferably, the lateral pressure amount layer is an other scope of layer not with 10mm.
Preferably, the lateral pressure amount layer does not include：Less than or equal to 0,0~10mm, 10~20mm, 20~30mm, 30~
40mm, 40~50mm, 50~60mm, 60~70mm and more than 70mm.
Preferably, also include：Short stroke curve adjustment unit, is divided for the head and tail width to the strip after rolling
Analysis, and the parameter of the short stroke curve is adjusted based on analysis result.
Through as shown from the above technical solution, this application discloses the method and dress of a kind of control hot-strip head and tail width
Put.The method chooses the strip of different lateral pressure amount specifications, is rolled in the case of the short stroke function that do not come into operation, and is rolled to all
The strip width data of system are collected analysis, and to rest in without in the case of any head and tail width control function, strip is end to end
The true strain situation of width.Further, it is that different lateral pressure amounts sets up corresponding short stroke curve according to above-mentioned analysis.This
Sample, when being rolled, the difference according to lateral pressure amount chooses different short stroke curves.Compared with prior art, root of the present invention
According to practical condition, short stroke curve is adjusted, so as to cover strip deformation end to end in all directions, reaches effectively control
The purpose of strip head and tail width processed.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 shows that a kind of flow of the method for control hot-strip head and tail width is shown disclosed in one embodiment of the invention
It is intended to；
Short stroke curve map tendency when Fig. 2 shows lateral pressure amount disclosed by the invention less than 30mm；
Short stroke curve map tendency when Fig. 3 shows lateral pressure amount disclosed by the invention more than 30mm less than 50mm；
Short stroke curve map tendency when Fig. 4 shows lateral pressure amount disclosed by the invention more than 50mm；
Fig. 5 shows a kind of structure of the device of control hot-strip head and tail width disclosed in another embodiment of the present invention
Schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
A kind of stream of the method for control hot-strip head and tail width disclosed in one embodiment of the invention is shown referring to Fig. 1
Journey schematic diagram.
As shown in Figure 1, the method includes：
S101：Obtain the lateral pressure amount under current state.
S102：Transfer the short stroke curve corresponding with the lateral pressure amount.
Wherein, the short stroke curve be based under no short stroke control function strip it is different pressure measurement rolling when,
The head and tail width variation tendency of strip is set up.
The process of setting up of the short stroke curve includes：
A：Obtain multiple strip samples generated under without short stroke control function.
B：To same lateral pressure amount layer not under strip sample be analyzed, to determine the head and tail width to the strip sample
Variation tendency.
C：Variation tendency end to end according to the strip sample sets up short stroke curve not corresponding with lateral pressure amount layer.
The strip of different lateral pressure amount specifications can be chosen in specific implementation process, in the short stroke that do not come into operation (SSC) function
In the case of rolled, the strip width data to all rollings are collected analysis.Rest in without any head and tail width control
In the case of function processed, the true strain situation of strip head and tail width is easy to follow-up specific aim to formulate the compensation of head and tail width control
Measure.
There is following trend by the strip width tracing analysis result produced in the case of without using short stroke function,
When lateral pressure amount is less than 30mm, there is different degrees of ultra-wide phenomenon in strip head and tail width；When lateral pressure amount is more than 30mm, band steel toe
Tail width engenders narrow rule phenomenon, and as the increase narrow rule amplitude of lateral pressure amount increases therewith, but in strip tail end
Portion has certain ultra-wide to be present.
According to the deformation rule of this rolling, with lateral pressure amount 30mm as boundary, two kinds of parameters of control mode are set out.One
It is that edger roll roll gap depresses (curve is as shown in Figure 1) end to end to plant, mainly for the specification in side pressure 30mm, the actual drafts of roll gap
Accurate adjustment is carried out according to layer not difference.Another kind is that roll gap increases (curve is as shown in Figure 2) end to end, is more than mainly for lateral pressure amount
The specification of 30mm, the same other incrementss of different layers are according to actually carrying out accurate adjustment.Meanwhile, band when being rolled according to the super 50mm of lateral pressure amount
Easy narrow rule between the 0.2-0.5m of steel end, but the phenomenon of end 0.2m or so ultra-wide, make end extruding, what middle part was opened
Short stroke curve (curve is as shown in Figure 3).
Different foundation with side pressure value according to lateral pressure amount be the other model table of layer, lateral pressure amount layer not She Zhi 10mm be one
The other scope of layer, scope is from lateral pressure amount less than 0mm (i.e. broadening rolling) to more than 70mm.
Specially：Less than or equal to 0,0~10mm, 10~20mm, 20~30mm, 30~40mm, 40~50mm, 50~
60mm, 60~70mm and more than 70mm.
S103：Based on the short stroke curve controlled strip operation of rolling end to end.
S104：Head and tail width to the strip after rolling is analyzed, and it is bent to adjust the short stroke based on analysis result
The parameter of line.
It should be noted that the precision in order to improve short stroke curve, in other embodiment disclosed by the invention, it is necessary to
Head and tail width to the strip after rolling is analyzed, so that the parameter to short stroke curve is adjusted.
As seen from the above embodiment, this application discloses this application discloses a kind of side of control hot-strip head and tail width
Method.The method chooses the strip of different lateral pressure amount specifications, is rolled in the case of the short stroke function that do not come into operation, and is rolled to all
The strip width data of system are collected analysis, and to rest in without in the case of any head and tail width control function, strip is end to end
The true strain situation of width.Further, it is that different lateral pressure amounts sets up corresponding short stroke curve according to above-mentioned analysis.This
Sample, when being rolled, the difference according to lateral pressure amount chooses different short stroke curves.Compared with prior art, root of the present invention
According to practical condition, short stroke curve is adjusted, so as to cover strip deformation end to end in all directions, reaches effectively control
The purpose of strip head and tail width processed.
A kind of device of control hot-strip head and tail width disclosed in another embodiment of the present invention is shown referring to Fig. 5
Structural representation.
As shown in Figure 5, the device includes：Lateral pressure amount collecting unit 1, short stroke curve are set up unit 2, short stroke curve and are adjusted
Take unit 3 and control unit 4.
Lateral pressure amount collecting unit 1 is used to obtain the lateral pressure amount under current state.
Short stroke curve sets up unit 2 for pre-building the short stroke curve corresponding with the lateral pressure amount, wherein, institute
Short stroke curve is stated based on the strip under no short stroke control function in different pressure measurement rollings, the head and tail width of strip becomes
Change trend is set up；.
Specifically, the short stroke curve is set up unit and is included：
Sample collection module 21, for obtaining multiple strip samples generated under without short stroke control function.
Head and tail width mutation analysis module 22, for same lateral pressure amount layer not under strip sample be analyzed, with true
The fixed head and tail width variation tendency to the strip sample.
Curve sets up module 23, for being set up with lateral pressure amount layer not according to the variation tendency end to end of the strip sample
Corresponding short stroke curve.
Further, short stroke curve transfers unit 3 and the short stroke corresponding with the lateral pressure amount is transferred when being rolled
Curve.
Control unit 4, for the operation of rolling based on the short stroke curve controlled strip end to end.
Optionally, in order to improve the precision of short stroke curve, in other embodiment disclosed by the invention, the device is also wrapped
Include：Short stroke curve adjustment unit, is analyzed for the head and tail width to the strip after rolling, and based on analysis result adjustment
The parameter of the short stroke curve.
It should be noted that the system embodiment is corresponding with embodiment of the method, its implementation procedure is identical with principle is performed,
Therefore not to repeat here.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", does not arrange
Except also there is other identical element in the process including the key element, method, article or equipment.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (10)
1. it is a kind of control hot-strip head and tail width method, it is characterised in that including：
Obtain the lateral pressure amount under current state；
The short stroke curve corresponding with the lateral pressure amount is transferred, the short stroke curve is based on not having short stroke control function
Lower strip in different pressure measurement rollings, set up by the head and tail width variation tendency of strip；
Based on the short stroke curve controlled strip operation of rolling end to end.
2. method according to claim 1, it is characterised in that the process of setting up of the short stroke curve includes：
Obtain multiple strip samples generated under without short stroke control function；
The strip sample not lower to same lateral pressure amount layer is analyzed, to determine that the head and tail width to the strip sample changes
Gesture；
Variation tendency end to end according to the strip sample sets up short stroke curve not corresponding with lateral pressure amount layer.
3. method according to claim 2, it is characterised in that the lateral pressure amount layer is an other scope of layer not with 10mm.
4. method according to claim 3, it is characterised in that the lateral pressure amount layer does not include：Less than or equal to 0,0~
10mm, 10~20mm, 20~30mm, 30~40mm, 40~50mm, 50~60mm, 60~70mm and more than 70mm.
5. method according to claim 1, it is characterised in that it is described based on the short stroke curve controlled strip end to end
The operation of rolling, also includes afterwards：
Head and tail width to the strip after rolling is analyzed, and the parameter of the short stroke curve is adjusted based on analysis result.
6. it is a kind of control hot-strip head and tail width device, it is characterised in that including：
Lateral pressure amount collecting unit, for obtaining the lateral pressure amount under current state；
Short stroke curve transfers unit, for transferring the short stroke curve corresponding with the lateral pressure amount, the short stroke curve
Based on the strip under no short stroke control function in different pressure measurement rollings, the head and tail width variation tendency of strip is set up；
Control unit, for the operation of rolling based on the short stroke curve controlled strip end to end.
7. device according to claim 6, it is characterised in that also include：Short stroke curve sets up unit, for building in advance
The vertical short stroke curve corresponding with the lateral pressure amount；
The short stroke curve sets up unit to be included：
Sample collection module, for obtaining multiple strip samples generated under without short stroke control function；
Head and tail width mutation analysis module, for same lateral pressure amount layer not under strip sample be analyzed, to determine to institute
State the head and tail width variation tendency of strip sample；
Curve sets up module, for setting up not corresponding with lateral pressure amount layer according to the variation tendency end to end of the strip sample
Short stroke curve.
8. the device according to right wants 7, it is characterised in that the lateral pressure amount layer is an other scope of layer not with 10mm.
9. device according to claim 8, it is characterised in that the lateral pressure amount layer does not include：Less than or equal to 0,0~
10mm, 10~20mm, 20~30mm, 30~40mm, 40~50mm, 50~60mm, 60~70mm and more than 70mm.
10. device according to claim 6, it is characterised in that also include：Short stroke curve adjustment unit, for rolling
The head and tail width of the strip after system is analyzed, and the parameter of the short stroke curve is adjusted based on analysis result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181638.3A CN106807756A (en) | 2017-03-23 | 2017-03-23 | A kind of method and apparatus for controlling hot-strip head and tail width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181638.3A CN106807756A (en) | 2017-03-23 | 2017-03-23 | A kind of method and apparatus for controlling hot-strip head and tail width |
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| CN106807756A true CN106807756A (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710181638.3A Pending CN106807756A (en) | 2017-03-23 | 2017-03-23 | A kind of method and apparatus for controlling hot-strip head and tail width |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513749A (en) * | 2018-11-01 | 2019-03-26 | 北京首钢股份有限公司 | A kind of hot-strip head-tail width control method and device |
Citations (4)
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|---|---|---|---|---|
| US4346575A (en) * | 1980-09-08 | 1982-08-31 | Sumitomo Metal Industries, Ltd. | Method of width control in hot strip mill |
| CN101602064A (en) * | 2009-07-03 | 2009-12-16 | 首钢总公司 | A kind of auxiliary adjusting method for controlling head and tail width of hot continuous rolling band steel |
| CN102921740A (en) * | 2011-08-09 | 2013-02-13 | 宝山钢铁股份有限公司 | Method for controlling width deviation of head and tail of hot rolled strip |
| CN102974622A (en) * | 2012-12-21 | 2013-03-20 | 山西太钢不锈钢股份有限公司 | Parameter compensation method and control method for short stroke control of head-tail width of strip steel |
-
2017
- 2017-03-23 CN CN201710181638.3A patent/CN106807756A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4346575A (en) * | 1980-09-08 | 1982-08-31 | Sumitomo Metal Industries, Ltd. | Method of width control in hot strip mill |
| CN101602064A (en) * | 2009-07-03 | 2009-12-16 | 首钢总公司 | A kind of auxiliary adjusting method for controlling head and tail width of hot continuous rolling band steel |
| CN102921740A (en) * | 2011-08-09 | 2013-02-13 | 宝山钢铁股份有限公司 | Method for controlling width deviation of head and tail of hot rolled strip |
| CN102974622A (en) * | 2012-12-21 | 2013-03-20 | 山西太钢不锈钢股份有限公司 | Parameter compensation method and control method for short stroke control of head-tail width of strip steel |
Non-Patent Citations (2)
| Title |
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| 吴建峰: "宝钢2050热轧短行程控制模型研究", 《冶金自动化》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513749A (en) * | 2018-11-01 | 2019-03-26 | 北京首钢股份有限公司 | A kind of hot-strip head-tail width control method and device |
| CN109513749B (en) * | 2018-11-01 | 2020-06-02 | 北京首钢股份有限公司 | Method and device for controlling width of head and tail of hot rolled strip steel |
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Application publication date: 20170609 |
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