CN104438353A - Process control method for preventing drive side wave shape of strip steel - Google Patents
Process control method for preventing drive side wave shape of strip steel Download PDFInfo
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- CN104438353A CN104438353A CN201410480139.0A CN201410480139A CN104438353A CN 104438353 A CN104438353 A CN 104438353A CN 201410480139 A CN201410480139 A CN 201410480139A CN 104438353 A CN104438353 A CN 104438353A
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- pressure sensor
- driving side
- process control
- band steel
- strip steel
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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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
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- Mechanical Engineering (AREA)
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Abstract
The invention provides a process control method for preventing a drive side wave shape of strip steel. The method is suitable for controlling the drive side wave shape of the cold-strip steel, with the width larger than or equal to 1650 mm, produced by a pickling line tandem cold mill. The method comprises the steps that a rack F5 is manually adjusted to incline, so that a roller gap of the operation side becomes smaller; when the strip steel is bundled, inclination control over a supporting roller is adjusted to be manual control from automatic control; the calibration coefficient of a platy instrument pressure sensor is optimized. According to the process control method for preventing the drive side wave shape of the strip steel, the process control operation is simple and easy to implement, the effect of controlling the drive side wave shape of the cold-strip steel with the width larger than or equal to 1650 mm after the cold-strip steel is milled in a pickling mode and removed from the line is good, on the basis of ensuing the product quality, the drive side wave shape of the strip steel with the width larger than or equal to 1650 mm can be well controlled through the pickling line tandem cold mill, and the problems of strip steel deflection and shutdown of the next production line can be effectively prevented.
Description
Technical field
The invention belongs to cold rolled strip steel production technical field, particularly a kind of process control method preventing band steel driving side shape wave, is applicable to the flatness control of the cold-strip steel of width >=1650mm.
Background technology
Plate shape weighs one of strip material most important index, is with steel easily to occur in lateral bending, middle wave, Bian Lang, rib wave, little limit wave, little middle wave, limit the flatness defects such as complex seas in Rolling Production process.Wherein driving side shape wave is the problem that current domestic iron and steel enterprises generally faces.
Pickling continuous-rolling is produced width >=1650mm and is with steel, occurs the problem of driving side shape wave, when lower road product line (continuous annealing production line and/or galvanization production line) can be caused to produce, strip running deviation phenomenon occurs, and causes stove district to be forced to reduction of speed and produces; Time serious, because strip width is wider, stove district edge after sideslip, can be scratched, cause and have to be forced to stop, reduce the production efficiency that lower road produces line, cause shutdown outside the plan and unnecessary economic loss.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of process control method preventing to be with steel driving side shape wave, and when producing the cold-strip steel of width >=1650mm for sour rolling mill, shape wave appears in control cincture steel driving side.
For solving the problems of the technologies described above, the invention provides a kind of process control method preventing to be with steel driving side shape wave, being applicable to the control that sour rolling mill produces the cold-strip steel driving side shape wave of width >=1650mm, comprising the steps:
(1) manually adjust F5 rack inclining value, fore side roll gap is diminished;
(2) when being with steel bundling, by backing roll inclination control by automatically controlling to be adjusted to Non-follow control;
(3) calibration coefficient of plate profile instrument pressure sensor is optimized.
Further, before and after described manual adjustment F5 rack inclining value the difference of two adjusted values within the scope of 0 ~ 1000 μm.
Further, the described calibration coefficient to plate profile instrument pressure sensor is optimized, its method is first by analyzing the pressure sensor measurements of plate profile instrument, determines the position of being with steel waviness, and the calibration coefficient of position to plate profile instrument pressure sensor then according to band steel waviness is optimized.
Further, the position of described band steel waviness is that Dai Gang center is in the scope of driving side edge 0 ~ 925mm.
Further, the described calibration coefficient of position to plate profile instrument pressure sensor according to band steel waviness is optimized, and is that the pressure sensor calibrating coefficient corresponding to band steel waviness position reduces 0.01-0.2.
Further, the passage of described plate profile instrument pressure sensor has 62.
A kind of process control method preventing band steel driving side shape wave provided by the invention, process control operations is simple, acid roll and roll off the production line after width >=1650mm cold-strip steel driving side shape wave control effects good, on the basis ensureing product quality, achieve the good control of sour rolling mill to the band steel driving side shape wave of width >=1650mm, effectively prevent lower road to produce strip running deviation, the parking problem of line.
Accompanying drawing explanation
Steel is with to produce PDA data and curves figure in the process control method of the prevention band steel driving side shape wave that Fig. 1 provides for the embodiment of the present invention.
According to the belt plate shape figure that plate profile instrument pressure sensor channel pressure value is drawn in the process control method of the prevention band steel driving side shape wave that Fig. 2 provides for the embodiment of the present invention.
Belt plate shape figure after the optimization of plate profile instrument pressure sensor corridorbarrier function coefficient in the process control method of the prevention band steel driving side shape wave that Fig. 3 provides for the embodiment of the present invention.
In the process control method of the prevention band steel driving side shape wave that Fig. 4 provides for the embodiment of the present invention, plate profile instrument pressure sensor corridorbarrier function coefficient optimizes front belt plate shape figure.
Belt plate shape figure after the optimization of plate profile instrument pressure sensor corridorbarrier function coefficient in the process control method of the prevention band steel driving side shape wave that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
A kind of process control method preventing to be with steel driving side shape wave that the embodiment of the present invention provides, is applicable to the control that sour rolling mill produces the cold-strip steel driving side shape wave of width >=1650mm, comprises the steps:
(1) manually adjust F5 rack inclining value, fore side roll gap is diminished;
(2) when being with steel bundling, by backing roll inclination control by automatically controlling to be adjusted to Non-follow control;
(3) calibration coefficient of plate profile instrument pressure sensor is optimized.
Wherein, the difference of two adjusted values before and after F5 rack inclining value is manually adjusted within the scope of 0 ~ 1000 μm.
Wherein, be optimized the calibration coefficient of plate profile instrument pressure sensor, its method is first by analyzing the pressure sensor measurements of plate profile instrument, determines the position of being with steel waviness, then according to the position of band steel waviness, when milling train overhauls, the calibration coefficient of plate profile instrument pressure sensor is optimized.
Wherein, the position of being with steel waviness is that Dai Gang center is in the scope of driving side edge 0 ~ 925mm.
Wherein, the calibration coefficient of position to plate profile instrument pressure sensor according to band steel waviness is optimized, and is that the pressure sensor calibrating coefficient corresponding to band steel waviness position when milling train overhauls reduces 0.01-0.2.
Wherein, the passage of plate profile instrument pressure sensor has 62.
Illustrate below by the process control method of embodiment to prevention band steel driving side shape wave provided by the invention.
Embodiment 1
Pickling continuous-rolling production specification is the high-strength IF steel of 4.3*1708mm (thickness * width), occurs driving side shape wave problem, presses step adjustment:
Step S1 manually adjusts F5 rack inclining value, is adjusted to-0.00042m by-0.00071m, and fore side roll gap is diminished, and driving side roll gap becomes large.
During step S2 band steel bundling, by backing roll inclination control by automatically controlling to be adjusted to Non-follow control.The operation of rolling of acid milling train is carried out continuously, all needs to cut to shear after each coiled strip steel rolling completes, after band steel completes and cuts, by button control by the inclination control of backing roll by automatically controlling to change Non-follow control into.See Fig. 1, ordinate represents the difference of driving side gap values between rollers and fore side gap values between rollers, and abscissa represents the production time, and each carriage return small arrow represents the process of production 1 coiled strip steel, and the negative value of ordinate is larger, and to represent the monolateral wave of driving side more serious.The inclination control of backing roll is by after automatically controlling to change Non-follow control into, contrast with front 1 coiled strip steel, reverse caster value length becomes about 400m (as Fig. 1 two arrow pointed location length) from about 600m, is namely with the length of steel reverse caster to diminish, and is therefore with steel driving side shape wave length to diminish.
The calibration coefficient of step S3 to plate profile instrument pressure sensor is optimized
First, by analyzing the pressure sensor measurements of plate profile instrument, determine the position of being with steel waviness, see Fig. 2, band steel driving side has obvious shape wave, and the dark position that namely abscissa 43-47 is corresponding is the position of band steel waviness.
Then be optimized according to the calibration coefficient of band steel waviness position to plate profile instrument pressure sensor respective channel, when milling train overhauls, respectively the calibration coefficient of 44,45,47,49,50,51,52 pressure sensor passages reduced 0.15.Before optimizing, the calibration coefficient numerical value of each passage of plate profile instrument pressure sensor is as shown in table 1 with the calibration coefficient numerical value optimizing the rear corresponding each passage of plate profile instrument pressure sensor.After being optimized the calibration coefficient of plate profile instrument pressure sensor respective channel, milling train tilts to press down to fore side, and then alleviates the limit wave problem of band steel driving side.
Table 1
See Fig. 3, after controlling adjustment by said method, can find out that the driving side of band steel is again without dark band steel waviness position from the belt plate shape produced.Therefore, adjusted by the control of above step, efficiently solve the chill coiled strip steel driving side shape wave problem that width that acid rolls production is 1708mm, for the smooth production of follow-up product line provides guarantee.
Embodiment 2:
Pickling continuous-rolling production specification is the high-strength IF steel of 4.3*1736mm (thickness * width), occurs the monolateral unrestrained problem of driving side, presses step adjustment:
Step S1 manually adjusts F5 rack inclining value, is adjusted to-0.00043m by-0.0008m, and fore side roll gap is diminished, and driving side roll gap becomes large.
During step S2 band steel bundling, by backing roll inclination control by automatically controlling to be adjusted to Non-follow control.
The calibration coefficient of step S3 to plate profile instrument pressure sensor is optimized
First, by analyzing the pressure sensor measurements of plate profile instrument, determine the position of being with steel waviness, see Fig. 4, band steel driving side has obvious shape wave, and the dark position namely in figure corresponding to abscissa 36-38 and abscissa 44-47 is band steel waviness position.
Then, according to band steel waviness position, plate profile instrument pressure sensor calibrating coefficient is optimized.Respectively by the calibration coefficient of 43-55 pressure sensor passages reduction 0.005, before optimizing, the calibration coefficient numerical value of each passage of plate profile instrument pressure sensor is as shown in table 2 with the calibration coefficient numerical value optimizing the rear corresponding each passage of plate profile instrument pressure sensor.
Table 2
See Fig. 5, after controlling adjustment by said method, can find out that the driving side of band steel is again without dark band steel waviness position from the belt plate shape produced.Therefore, adjusted by the control of above step, efficiently solve the chill coiled strip steel driving side shape wave problem that width that acid rolls production is 1736mm, for the smooth production of follow-up product line provides guarantee.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. prevent the process control method being with steel driving side shape wave, be applicable to the control of the cold-strip steel driving side shape wave of width >=1650mm that sour rolling mill is produced, it is characterized in that, comprise the steps:
(1) manually adjust F5 rack inclining value, fore side roll gap is diminished;
(2) when being with steel bundling, by backing roll inclination control by automatically controlling to be adjusted to Non-follow control;
(3) calibration coefficient of plate profile instrument pressure sensor is optimized.
2. the process control method of prevention band steel driving side shape wave according to claim 1, is characterized in that: before and after described manual adjustment F5 rack inclining value, the difference of two adjusted values is within the scope of 0 ~ 1000 μm.
3. the process control method of prevention band steel driving side shape wave according to claim 1, it is characterized in that: the described calibration coefficient to plate profile instrument pressure sensor is optimized, its method is first by analyzing the pressure sensor measurements of plate profile instrument, determine the position of being with steel waviness, the calibration coefficient of position to plate profile instrument pressure sensor then according to band steel waviness is optimized.
4. the process control method of prevention band steel driving side shape wave according to claim 3, is characterized in that: the position of described band steel waviness is that Dai Gang center is in the scope of driving side edge 0 ~ 925mm.
5. the process control method of prevention band steel driving side shape wave according to claim 3, it is characterized in that: the described calibration coefficient of position to plate profile instrument pressure sensor according to band steel waviness is optimized, is that the pressure sensor calibrating coefficient corresponding to band steel waviness position reduces 0.01-0.2.
6. the process control method of prevention band steel driving side shape wave according to claim 3, is characterized in that: the passage of described plate profile instrument pressure sensor has 62.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480139.0A CN104438353B (en) | 2014-09-18 | A kind of process control method preventing strip steel driving side shape wave |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480139.0A CN104438353B (en) | 2014-09-18 | A kind of process control method preventing strip steel driving side shape wave |
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| CN104438353A true CN104438353A (en) | 2015-03-25 |
| CN104438353B CN104438353B (en) | 2017-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382414A (en) * | 2017-08-14 | 2019-02-26 | 上海梅山钢铁股份有限公司 | A method of for controlling cold-strip steel Edge shape defect |
| CN113953332A (en) * | 2020-07-21 | 2022-01-21 | 宝山钢铁股份有限公司 | Control method for strip steel single-side wave shape between hot continuous rolling mill frames |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08206715A (en) * | 1995-01-31 | 1996-08-13 | Kawasaki Steel Corp | Method for cold-rolling steel strip |
| JP2003266113A (en) * | 2002-03-12 | 2003-09-24 | Sumitomo Metal Ind Ltd | Method for manufacturing metallic strip |
| KR100799709B1 (en) * | 2001-12-24 | 2008-02-01 | 주식회사 포스코 | Cold rolling strip profile control method at tandem cold rolling mill |
| CN102581027A (en) * | 2012-01-18 | 2012-07-18 | 中冶南方工程技术有限公司 | Control system for transverse integrative optimization of shape of cold rolled steel strip |
| CN102909223A (en) * | 2012-10-25 | 2013-02-06 | 河北省首钢迁安钢铁有限责任公司 | Edge shape control method |
| CN202779189U (en) * | 2012-01-18 | 2013-03-13 | 中冶南方工程技术有限公司 | Cold rolling strip steel shape transverse integral optimization control system |
| CN103611731A (en) * | 2013-11-08 | 2014-03-05 | 首钢总公司 | Tandem cold mill steel strip flatness adjusting method |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08206715A (en) * | 1995-01-31 | 1996-08-13 | Kawasaki Steel Corp | Method for cold-rolling steel strip |
| JP2981139B2 (en) * | 1995-01-31 | 1999-11-22 | 川崎製鉄株式会社 | Cold rolling of steel strip |
| KR100799709B1 (en) * | 2001-12-24 | 2008-02-01 | 주식회사 포스코 | Cold rolling strip profile control method at tandem cold rolling mill |
| JP2003266113A (en) * | 2002-03-12 | 2003-09-24 | Sumitomo Metal Ind Ltd | Method for manufacturing metallic strip |
| CN102581027A (en) * | 2012-01-18 | 2012-07-18 | 中冶南方工程技术有限公司 | Control system for transverse integrative optimization of shape of cold rolled steel strip |
| CN202779189U (en) * | 2012-01-18 | 2013-03-13 | 中冶南方工程技术有限公司 | Cold rolling strip steel shape transverse integral optimization control system |
| CN102909223A (en) * | 2012-10-25 | 2013-02-06 | 河北省首钢迁安钢铁有限责任公司 | Edge shape control method |
| CN103611731A (en) * | 2013-11-08 | 2014-03-05 | 首钢总公司 | Tandem cold mill steel strip flatness adjusting method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382414A (en) * | 2017-08-14 | 2019-02-26 | 上海梅山钢铁股份有限公司 | A method of for controlling cold-strip steel Edge shape defect |
| CN113953332A (en) * | 2020-07-21 | 2022-01-21 | 宝山钢铁股份有限公司 | Control method for strip steel single-side wave shape between hot continuous rolling mill frames |
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