CN108746215A - A kind of determination method of cold rolling state - Google Patents
A kind of determination method of cold rolling state Download PDFInfo
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- CN108746215A CN108746215A CN201810343781.2A CN201810343781A CN108746215A CN 108746215 A CN108746215 A CN 108746215A CN 201810343781 A CN201810343781 A CN 201810343781A CN 108746215 A CN108746215 A CN 108746215A
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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
-
- 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
- B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
-
- 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
- B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
-
- 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
- B21B38/08—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-force
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The invention discloses a kind of determination methods of cold rolling state, belong to Bar Rolling Process field, the method includes：The first deviation of rack roll-force is obtained using pressure head；The second deviation of rack roll-force is obtained using oil pressure sensor；Judge whether first deviation and second deviation meet the first predetermined condition；When meeting the first predetermined condition, the as-rolled condition of strip is normal.When solving milling equipment function precision in the prior art by the above method and being abnormal, the technical issues of quickly as-rolled condition can not being judged by rolling parameter, reach and as-rolled condition is monitored and is judged, rolling stability is improved, the technique effect of non-orientation silicon steel product quality is promoted.
Description
Technical field
The present invention relates to Bar Rolling Process field, more particularly to a kind of determination method of cold rolling state.
Background technology
1450 pickling milling train Unit erriger of Shoudu Iron and Steel Co passes through the positive and negative roller of working roll, centre using 5 rack, 6 roller UCMW milling trains
The control means such as the positive roller of roller, working roll roll shifting, intermediate roll shifting, roller declination, the cooling of emulsion multiple spot, obtain good plate
Shape.Milling train section is equipped with 1 set of load cell and 5 sets of pressure cell detection roll-forces, and 4 calibrator detection strips are thick
Degree, 4 tachymeters detect strip speed, and 6 tensometers detect strip tension, and 1 plate profile instrument, 1 edge of table drop instrument are detected and fed back
Control glacing flatness and side drop.
But present inventor has found the above-mentioned prior art extremely during technical solution in realizing the embodiment of the present application
It has the following technical problems less：
It, can not be by rolling parameter quickly to as-rolled condition when milling equipment function precision in the prior art is abnormal
Judged.
Invention content
The present invention provides a kind of determination methods of cold rolling state, to solve milling equipment work(in the prior art
When energy precision is abnormal, the technical issues of can not quickly being judged as-rolled condition by rolling parameter, reach to rolling
State processed is monitored and judges, improves rolling stability, promotes the technique effect of non-orientation silicon steel product quality.
The present invention provides a kind of determination method of cold rolling state, the method includes：Rack is obtained using pressure head
First deviation of roll-force；The second deviation of rack roll-force is obtained using oil pressure sensor；Judge first deviation
Whether value and second deviation meet the first predetermined condition；When meeting the first predetermined condition, the as-rolled condition of strip is
Normally.
Preferably, the method further includes：Obtain the first thickness deviation of side drop instrument；Obtain the second thickness of calibrator
Deviation；Judge whether the first thickness deviation and the second thickness deviation meet the second predetermined condition；Work as satisfaction
When the second predetermined condition, the as-rolled condition of the strip is normal.
Preferably, the method further includes：The third deviation of the strip is obtained using plate profile instrument；Obtain plate profile instrument side
4th deviation of portion channels operation side and transmission side；Judge whether the third deviation and the 4th deviation meet
Three predetermined conditions；When meeting third predetermined condition, the as-rolled condition of the strip is normal.
Preferably, described to judge whether first deviation and second deviation meet the first predetermined condition, tool
Body includes：When first deviation and second deviation are respectively in the range of -30 tons~30 tons, and described first partially
For the difference of difference and second deviation in the range of -20 tons~20 tons, the as-rolled condition of the strip is normal.
Preferably, described to judge whether first deviation and second deviation meet the first predetermined condition, also
Including：When being unsatisfactory for the first predetermined condition, maintenance investigation is carried out to the pressure head and the upper cylinder position of pressure.
Preferably, described to judge whether the first thickness deviation and the second thickness deviation meet second and make a reservation for
Condition specifically includes：When the first thickness deviation and the second thickness deviation are respectively in -2 μm~2 μm of range
It is interior, and the difference of the first thickness deviation and the second thickness deviation is in the range of -0.5 μm~0.5 μm, the band
The as-rolled condition of steel is normal
Preferably, described to judge whether the first thickness deviation and the second thickness deviation meet second and make a reservation for
Condition further includes：When being unsatisfactory for the second predetermined condition, the thickness fluctuation center that instrument is dropped to the calibrator and the side carries out
Investigation.
Preferably, described to judge whether the third deviation and the 4th deviation meet third predetermined condition, tool
Body includes：When the third deviation is in the range of -5mm~5mm, and the 4th deviation is in 30I-Unit, described
The as-rolled condition of strip is normal
Preferably, described to judge whether the third deviation and the 4th deviation meet third predetermined condition, also
Including：When being unsatisfactory for third predetermined condition, inspection center's line of the side drop instrument is adjusted.
Preferably, first deviation, the second deviation, first thickness deviation, second thickness deviation, third are inclined
Difference, the 4th deviation pass through HMI interface displays.
Said one in the embodiment of the present invention or multiple technical solutions at least have following one or more technology effects
Fruit：
1, the determination method of a kind of cold rolling state provided in an embodiment of the present invention, the method includes：Using pressure head
Obtain the first deviation of rack roll-force；The second deviation of rack roll-force is obtained using oil pressure sensor；Described in judgement
Whether the first deviation and second deviation meet the first predetermined condition；When meeting the first predetermined condition, strip rolls
State processed is normal.When solving milling equipment function precision in the prior art by the above method and being abnormal, Wu Fatong
The technical issues of rolling parameter quickly judges as-rolled condition is crossed, has reached and as-rolled condition is monitored and is judged, carried
High rolling stability promotes the technique effect of non-orientation silicon steel product quality.
2, the first thickness deviation of instrument drops by obtaining side in the embodiment of the present invention；Obtain the second thickness deviation of calibrator
Value；Judge whether the first thickness deviation and the second thickness deviation meet the second predetermined condition；When satisfaction second
When predetermined condition, the as-rolled condition of the strip is normal.Further solve milling equipment function precision in the prior art
When being abnormal, the technical issues of can not quickly being judged as-rolled condition by rolling parameter, reach to as-rolled condition
It is monitored and judges, improve rolling stability, promote the technique effect of non-orientation silicon steel product quality.
3, the embodiment of the present invention obtains the third deviation of the strip by using plate profile instrument；It is logical to obtain plate profile instrument edge
4th deviation of road active side and transmission side；It is pre- to judge whether the third deviation and the 4th deviation meet third
Fixed condition；When meeting third predetermined condition, the as-rolled condition of the strip is normal.It further solves in the prior art
When milling equipment function precision is abnormal, the technical issues of can not quickly being judged as-rolled condition by rolling parameter,
Reach and as-rolled condition is monitored and is judged, improved rolling stability, has promoted the technology effect of non-orientation silicon steel product quality
Fruit.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, below the special specific implementation mode for lifting the present invention.
Description of the drawings
Fig. 1 is a kind of flow diagram of the determination method of cold rolling state in the embodiment of the present invention.
Specific implementation mode
An embodiment of the present invention provides a kind of determination methods of cold rolling state, to solve milling train in the prior art
When functions of the equipments precision is abnormal, the technical issues of can not quickly being judged as-rolled condition by rolling parameter.
Technical solution in the embodiment of the present invention, general thought are as follows：
A kind of determination method of cold rolling state provided in an embodiment of the present invention, the method includes：It is obtained using pressure head
Obtain the first deviation of rack roll-force；The second deviation of rack roll-force is obtained using oil pressure sensor；Judge described
Whether one deviation and second deviation meet the first predetermined condition；When meeting the first predetermined condition, the rolling of strip
State is normal.Reached by the above method and as-rolled condition is monitored and is judged, improved rolling stability, promoted nothing and take
To the technique effect of silicon steel product quality.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is a kind of flow diagram of the determination method of cold rolling state in the embodiment of the present invention.As shown in Figure 1,
The method includes：
Step 110：The first deviation of rack roll-force is obtained using pressure head；
Step 120：The second deviation of rack roll-force is obtained using oil pressure sensor；
Specifically, pressure head, oil pressure sensor is respectively adopted to the dual monitoring of 1# rack roll-forces progress, measurement obtains institute
State the first deviation and second deviation.
Step 130：Judge whether first deviation and second deviation meet the first predetermined condition；
Step 140：When meeting the first predetermined condition, the as-rolled condition of strip is normal.
It is further, described to judge whether first deviation and second deviation meet the first predetermined condition,
It specifically includes：When first deviation and second deviation are respectively in the range of -30 tons~30 tons, and described first
For the difference of deviation and second deviation in the range of -20 tons~20 tons, the as-rolled condition of the strip is normal.
It is further, described to judge whether first deviation and second deviation meet the first predetermined condition,
Further include：When being unsatisfactory for the first predetermined condition, maintenance investigation is carried out to the pressure head.
Specifically, carrying out dual monitoring to 1# rack roll-forces using pressure head, oil pressure sensor, that is, described in acquisition
After first deviation and second deviation, further whether first deviation and second deviation are met
Predetermined condition judged, specific decision logic is, first deviation and the unilateral difference of second deviation it is normal
Ranging from ± 15 tons, the normal range (NR) of the both sides summation of first deviation and second deviation is ± 30 tons, simultaneously
The difference of first deviation and second deviation is in the range of -20 tons~20 tons, when high-speed steady rolls 1# racks
When the deviation of first deviation of the roll-force that pressure head measures is in normal range (NR) ± 30 ton, then the rolling of the strip at this time
State is normal, when first deviation and second deviation exceed -30 tons~30 tons of ranges, then judges that pressure head is surveyed
There is exception in amount, further carry out maintenance investigation to the pressure head and the upper cylinder position of pressure.Meanwhile the display of HMI pictures increases oil pressure
The roll-force of sensor measurement achievees the purpose that the as-rolled condition to the strip monitors in real time.
Further, the method further includes：
Step 210：Obtain the first thickness deviation of side drop instrument；
Step 220：Obtain the second thickness deviation of calibrator；
Specifically, the thickness gauge is used to detect the thickness of the strip, it is described when dropping instrument for detecting and feeding back
Drop obtains the first thickness deviation of side drop instrument and described respectively when the as-rolled condition to the strip is monitored
The second thickness deviation of calibrator.
Step 230：Judge whether the first thickness deviation and the second thickness deviation meet the second predetermined item
Part；
Step 240：When meeting the second predetermined condition, the as-rolled condition of the strip is normal.
Further, described to judge whether the first thickness deviation and the second thickness deviation meet second in advance
Fixed condition specifically includes：When the first thickness deviation and the second thickness deviation are respectively in -2 μm~2 μm of range
Interior, the as-rolled condition of the strip is normal.
Further, described to judge whether the first thickness deviation and the second thickness deviation meet second in advance
Fixed condition further includes：When being unsatisfactory for the second predetermined condition, to the calibrator and the side drop the thickness fluctuation center of instrument into
Row investigation.
Specifically, the requirement of the thickness deviation monitoring requirement is：It is aobvious that the HMI pictures increase side drop instrument thickness deviation
Show, after the second thickness deviation of the first thickness deviation and the calibrator that obtain the side drop instrument, further sentences
Whether the first thickness deviation of breaking and the second thickness deviation meet the second predetermined condition, specific decision logic
For：When the first thickness deviation and the second thickness deviation are respectively in the range of -2~2 μm, and described first is thick
When spending the difference of deviation and the second thickness deviation in the range of -0.5 μm~0.5 μm, then the strip rolls at this time
State processed is normal；Conversely, when the first thickness deviation and the second thickness deviation are more than normal range (NR), then institute
The as-rolled condition for stating strip is abnormal, then need further to the calibrator and the side drop instrument thickness fluctuation center whether
Unanimously investigated.
Further, the method further includes：
Step 310：The third deviation of the strip is obtained using plate profile instrument；
Step 320：Obtain the 4th deviation of plate profile instrument edge channels operation side and transmission side；
Specifically, obtaining the third deviation of the strip using plate profile instrument, plate profile instrument edge channel work is then obtained
The 4th deviation for making side and transmission side, is further monitored as-rolled condition.
Step 330：Judge whether the third deviation and the 4th deviation meet third predetermined condition；
Step 340：When meeting third predetermined condition, the as-rolled condition of the strip is normal.
It is further, described to judge whether the third deviation and the 4th deviation meet third predetermined condition,
It specifically includes：When the third deviation is in the range of -5mm~5mm, and the 4th deviation is in 30I-Unit, institute
The as-rolled condition for stating strip is normal
It is further, described to judge whether the third deviation and the 4th deviation meet third predetermined condition,
Further include：When being unsatisfactory for third predetermined condition, inspection center's line of the side drop instrument is adjusted.
Specifically, whether the third deviation and the 4th deviation are met third predetermined condition and are judged
When, specific decision logic is：It specifically includes：When the third deviation is in the range of -5mm~5mm, and the described 4th partially
Difference is in 30I-Unit, then the as-rolled condition of the strip is normal at this time, conversely, when the third deviation and described the
When four deviations exceed normal range (NR), then the as-rolled condition of the strip is abnormal, needs further to adjust the side at this time
Inspection center's line of instrument drops.
Further, first deviation, the second deviation, first thickness deviation, second thickness deviation, third
Deviation, the 4th deviation are come out by HMI interface displays.
In embodiments of the present invention, by the above method solve milling equipment function precision in the prior art occur it is different
Chang Shi has reached and has been supervised to as-rolled condition the technical issues of can not quickly being judged as-rolled condition by rolling parameter
Control and judgement, improve rolling stability, promote the technique effect of non-orientation silicon steel product quality.
Embodiment two
A kind of determination method of cold rolling state of the present invention is described in detail below, it is specific as follows：
In embodiments of the present invention, by taking the sour Continuous mill train of Shoudu Iron and Steel Co 1450 as an example, 5 rack mill speed 1000mpm are detected
Roll-force the first deviation deviation of 1# rack pressure heads is -50 tons, and oil pressure sensor shows that the second deviation deviation is 20 tons, pressure
Head detection general rolling force is 1190 tons, and oil pressure sensor detects 1140 tons of general rolling force, then is determined as as-rolled condition exception, into one
Step is by overhauling replaceable pressure head so that rolling force deviation drops in ± 10 tons, and pressure head detection is total with oil pressure sensor detection
Roll-force differs 15 tons；
Calibrator shows that the deviation central point of first thickness deviation is 0 μm, and side drops instrument and shows second thickness deviation
Thickness deviation central point is 1 μm, is determined as as-rolled condition exception；
Always active side is tight slightly for plate profile instrument display outlet strip, small 30I- of the plate profile instrument edge channels operation side compared with transmission side
Unit, plate profile instrument shows that the third deviation of the strip is -8mm, is determined as as-rolled condition exception, further adjusts side and drops instrument
So that plate shape centering after inspection center's line.
Said one in the embodiment of the present invention or multiple technical solutions at least have following one or more technology effects
Fruit：
1, the determination method of a kind of cold rolling state provided in an embodiment of the present invention, the method includes：Using pressure head
Obtain the first deviation of rack roll-force；The second deviation of rack roll-force is obtained using oil pressure sensor；Described in judgement
Whether the first deviation and second deviation meet the first predetermined condition；When meeting the first predetermined condition, strip rolls
State processed is normal.When solving milling equipment function precision in the prior art by the above method and being abnormal, Wu Fatong
The technical issues of rolling parameter quickly judges as-rolled condition is crossed, has reached and as-rolled condition is monitored and is judged, carried
High rolling stability promotes the technique effect of non-orientation silicon steel product quality.
2, the first thickness deviation of instrument drops by obtaining side in the embodiment of the present invention；Obtain the second thickness deviation of calibrator
Value；Judge whether the first thickness deviation and the second thickness deviation meet the second predetermined condition；When satisfaction second
When predetermined condition, the as-rolled condition of the strip is normal.Further solve milling equipment function precision in the prior art
When being abnormal, the technical issues of can not quickly being judged as-rolled condition by rolling parameter, reach to as-rolled condition
It is monitored and judges, improve rolling stability, promote the technique effect of non-orientation silicon steel product quality.
3, the embodiment of the present invention obtains the third deviation of the strip by using plate profile instrument；It is logical to obtain plate profile instrument edge
4th deviation of road active side and transmission side；It is pre- to judge whether the third deviation and the 4th deviation meet third
Fixed condition；When meeting third predetermined condition, the as-rolled condition of the strip is normal.It further solves in the prior art
When milling equipment function precision is abnormal, the technical issues of can not quickly being judged as-rolled condition by rolling parameter,
Reach and as-rolled condition is monitored and is judged, improved rolling stability, has promoted the technology effect of non-orientation silicon steel product quality
Fruit.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out the embodiment of the present invention various modification and variations without departing from this hair
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of determination method of cold rolling state, which is characterized in that the method includes：
The first deviation of rack roll-force is obtained using pressure head；
The second deviation of rack roll-force is obtained using oil pressure sensor；
Judge whether first deviation and second deviation meet the first predetermined condition；
When meeting the first predetermined condition, the as-rolled condition of strip is normal.
2. the method as described in claim 1, which is characterized in that the method further includes：
Obtain the first thickness deviation of side drop instrument；
Obtain the second thickness deviation of calibrator；
Judge whether the first thickness deviation and the second thickness deviation meet the second predetermined condition；
When meeting the second predetermined condition, the as-rolled condition of the strip is normal.
3. the method as described in claim 1, which is characterized in that the method further includes：
The third deviation of the strip is obtained using plate profile instrument；
Obtain the 4th deviation of plate profile instrument edge channels operation side and transmission side；
Judge whether the third deviation and the 4th deviation meet third predetermined condition；
When meeting third predetermined condition, the as-rolled condition of the strip is normal.
4. the method as described in claim 1, which is characterized in that the judgement first deviation and second deviation
Whether meet the first predetermined condition, specifically includes：
When first deviation and second deviation are respectively in the range of -30 tons~30 tons, and first deviation
For the difference of value and second deviation in the range of -20 tons~20 tons, the as-rolled condition of the strip is normal.
5. the method as described in claim 1, which is characterized in that the judgement first deviation and second deviation
Whether meet the first predetermined condition, further includes：
When being unsatisfactory for the first predetermined condition, maintenance investigation is carried out to the pressure head and the upper cylinder position of pressure.
6. method as claimed in claim 2, which is characterized in that described to judge the first thickness deviation and second thickness
Whether degree deviation meets the second predetermined condition, specifically includes：
When the first thickness deviation and the second thickness deviation are respectively in the range of -2 μm~2 μm, and described
The difference of one thickness deviation values and the second thickness deviation is in the range of -0.5 μm~0.5 μm, the rolling shape of the strip
State is normal.
7. method as claimed in claim 2, which is characterized in that described to judge the first thickness deviation and second thickness
Whether degree deviation meets the second predetermined condition, further includes：
When being unsatisfactory for the second predetermined condition, the thickness fluctuation center that instrument is dropped to the calibrator and the side is investigated.
8. method as claimed in claim 3, which is characterized in that the judgement third deviation and the 4th deviation
Whether meet third predetermined condition, specifically includes：
When the third deviation is in the range of -5mm~5mm, and the 4th deviation is in 30I-Unit, the strip
As-rolled condition be normal.
9. method as claimed in claim 3, which is characterized in that the judgement third deviation and the 4th deviation
Whether meet third predetermined condition, further includes：
When being unsatisfactory for third predetermined condition, inspection center's line of the side drop instrument is adjusted.
10. the method as described in claim 1-3, which is characterized in that first deviation, the second deviation, first thickness
Deviation, second thickness deviation, third deviation, the 4th deviation pass through HMI interface displays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343781.2A CN108746215B (en) | 2018-04-17 | 2018-04-17 | Method for judging cold rolling state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343781.2A CN108746215B (en) | 2018-04-17 | 2018-04-17 | Method for judging cold rolling state |
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| Publication Number | Publication Date |
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| CN108746215A true CN108746215A (en) | 2018-11-06 |
| CN108746215B CN108746215B (en) | 2020-02-04 |
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ID=64010633
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810343781.2A Active CN108746215B (en) | 2018-04-17 | 2018-04-17 | Method for judging cold rolling state |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109840369A (en) * | 2019-01-17 | 2019-06-04 | 燕山大学 | Cold-strip plate profile instrument kinetics design method |
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| CN105834225A (en) * | 2016-05-03 | 2016-08-10 | 首钢京唐钢铁联合有限责任公司 | Thickness controlling method for flying gauge changing rolling of cold tandem mill and controlling system for cold tandem mill |
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| KR20030053619A (en) * | 2001-12-22 | 2003-07-02 | 주식회사 포스코 | Hot rolling method for controlling width profile of hot strip |
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| CN103464469A (en) * | 2013-09-06 | 2013-12-25 | 鞍钢股份有限公司 | Edge drop control method of cold-rolled non-oriented silicon steel |
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| CN109840369A (en) * | 2019-01-17 | 2019-06-04 | 燕山大学 | Cold-strip plate profile instrument kinetics design method |
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| CN108746215B (en) | 2020-02-04 |
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