CN103611731A - Tandem cold mill steel strip flatness adjusting method - Google Patents
Tandem cold mill steel strip flatness adjusting method Download PDFInfo
- Publication number
- CN103611731A CN103611731A CN201310554352.7A CN201310554352A CN103611731A CN 103611731 A CN103611731 A CN 103611731A CN 201310554352 A CN201310554352 A CN 201310554352A CN 103611731 A CN103611731 A CN 103611731A
- Authority
- CN
- China
- Prior art keywords
- value
- plate shape
- flatness
- control system
- adjustment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Control Of Metal Rolling (AREA)
Abstract
The invention discloses a tandem cold mill steel strip flatness adjusting method. The method includes: in the rolling process, detecting flatness on a width section of a steel strip through a flatness measurement roller in an automatic flatness control system to obtain a flatness value of the steel strip; judging the flatness value and a preset value, and when the flatness value is larger than the preset value, adjusting a parameter value of a target flatness value through the automatic flatness control system to obtain an adjusted flatness value; judging the adjusted flatness value and the preset value again, and when the adjusted flatness value is smaller then the preset value, recording the parameter value of the target flatness value; when the adjusted flatness value is larger than the preset value, closing the automatic flatness control system, respectively adjusting and recording parameter values of a tail-stand mill, enabling the adjusted flatness value to be smaller than the preset value, and opening the automatic flatness control system. Target flatness curve adjustment is quantified, the flatness curve is adjusted both manually and automatically, and completeness in flatness adjustment and flatness quality are guaranteed.
Description
Technical field
The invention belongs to cold rolled sheet rolling technical field, particularly a kind of method of adjustment of cold continuous rolling belt plate shape.
Background technology
In the tandem mills operation of rolling, the adjustment of belt plate shape directly has influence on the strip shape quality of product and the stability in the operation of rolling, the method of adjustment of plate shape mainly relies on last frame exit plate instrument automatic control system to carry out FEEDBACK CONTROL, and close automatic control and take complete manually adjustment, but in actual production process, there is following problem in these two kinds of plate shape methods of adjustment:
(1) because unpredictable element in the actual operation of rolling is more, (as: hot rolling raw material plate shape is abnormal; Roll wear; Subregion is cooling abnormal etc.), therefore by the target flatness curve of setting, undertaken automatically adjusting controlling, there will be strip shape quality poor but cannot realize self-adjusting problem.
(2) after automatic adjustment was lost efficacy, while taking manually to adjust, must close automatic adjustment and carry out manual setting, operative employee adjusts according to experience and observation milling train data, and promptness and followability are poor.
(3) when plate shape curve is adjusted, the relevant data of adjusting do not show on operation interface, make operative employee adjust result by quantification board shape curve, thereby cannot optimization aim plate shape curve and preserve.
(4) operative employee when carrying out manual operations entirely by rule of thumb, there is no standard schematic diagram, operational quality is different.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of adjustment of cold continuous rolling belt plate shape, has solved when strip shape quality is poor in prior art and system cannot have been adjusted and the artificial technical problem of adjusting the technology of combining closely automatically.
For solving the problems of the technologies described above, the invention provides a kind of method of adjustment of cold continuous rolling belt plate shape, comprise the steps:
In the operation of rolling, by the plate shape measurement roller in plate shape automatic control system, the plate shape in the width section with steel is detected, obtain the described plate shape value with steel;
Described plate shape value and preset value are judged for the first time, when described plate shape value is greater than described preset value, by the parameter value of described plate shape automatic control system adjustment aim plate shape curve, the plate shape value after being adjusted;
Plate shape value and preset value after described adjustment are judged for the second time, when the plate shape value after adjusting is less than described preset value, record the parameter value of described target flatness curve; When the plate shape value after described adjustment is greater than described preset value, close described plate shape automatic control system, adjust respectively and record the parameter value of last sortie milling train, make the plate shape value after described adjustment be less than described preset value, open described plate shape automatic control system.
Further, described plate shape automatic control system is ABB plate shape automatic control system.
Further, the parameter value of described target flatness curve comprises tilting value, bending value and the limit depreciation of target flatness curve.
Further, the parameter value of described last sortie milling train comprises roller value, tilting value and the roll shifting value of last sortie milling train.
Further, described preset value is 3IU.
The method of adjustment of a kind of cold continuous rolling belt plate shape provided by the invention, quantized the adjustment of target flatness curve, make manually automatically to combine with system, the common plate shape curve of adjusting, overcome the shortcoming of manual and the automatic single plate shape method of adjustment of system, reach the unpredictable element that plate shape is controlled that affects making up in actual production process, guarantee integrality and strip shape quality that plate shape is adjusted.
Accompanying drawing explanation
The method of adjustment flow chart of steps of the cold continuous rolling belt plate shape that Fig. 1 provides for the embodiment of the present invention.
The specific embodiment
Referring to Fig. 1, the method for adjustment of a kind of cold continuous rolling belt plate shape that the embodiment of the present invention provides, comprises the steps:
Step 101: in the operation of rolling, by the plate shape measurement roller in plate shape automatic control system, the plate shape in the width section with steel is detected, obtain the plate shape value with steel, in embodiments of the present invention, this plate shape automatic control system is ABB plate shape automatic control system;
Step 102: plate shape value and preset value are judged for the first time, when plate shape value is greater than preset value, by the parameter value of plate shape automatic control system adjustment aim plate shape curve, plate shape value after being adjusted, wherein, the parameter value of target flatness curve comprises tilting value, bending value and the limit depreciation of target shape curve, and in embodiments of the present invention, preset value is 3IU;
Step 103: plate shape value and preset value after adjusting are judged for the second time, when the plate shape value after adjusting is less than preset value, the parameter value of record object plate shape curve, engineer is according to tilting value, bending value and the limit depreciation of the target flatness after adjusting, the similar Automatic Optimal work with steel steel grade and target flatness curve after carrying out;
When the plate shape value after adjusting is greater than preset value, closing plate shape automatic control system, adjust respectively and record the parameter value of last sortie milling train, make the plate shape value after adjusting be less than preset value, wherein, the parameter value of last sortie milling train comprises roller value, tilting value and the roll shifting value of last sortie milling train, opens described plate shape automatic control system, engineer utilizes roller value, tilting value and the roll shifting value after last sortie adjustment of rolling mill, similar steel grade and the work of target flatness optimization of profile after carrying out.
Embodiment 1:
Certain factory is in Rolling Production process, production steel grade is SPHC, product thickness is 0.98, width is 1607mm, F1-F4 mill milling kilometer is 2530 tons, F5 roll rolling milimeter number is 1486 tons: the plate shape measurement roller by plate shape automatic control system detects belt plate shape, the plate shape value obtaining with steel is 4.72IU, by plate shape value and preset value, be that 3IU judges for the first time, while being greater than 3IU due to plate shape value, adjust respectively the tilting value of target flatness curve in plate shape automatic control system, bending value and limit depreciation, plate shape value after adjustment is 2.04IU, plate shape value and 3IU after adjusting are judged for the second time, because the plate shape value after adjusting is less than preset value, make plate shape value after adjusting in 3IU, record the now tilting value of target flatness curve, bending value and limit depreciation, specifically in Table 1:
Table 1: plate shape curve is changed table for the first time
Embodiment 2:
Certain factory is in Rolling Production process, production steel grade is SDX51D, product thickness is 1.390, width is 1527mm, F1-F4 mill milling kilometer is 1423 tons, F5 roll rolling milimeter number is 652 tons: by the plate shape measurement roller in plate shape automatic control system, the plate shape in the width section with steel is detected, the plate shape value obtaining with steel is 4.2IU, plate shape value and preset value 3IU are judged for the first time, while being greater than 3IU due to plate shape value, adjust respectively the tilting value of target flatness curve in plate shape automatic control system, bending value and limit depreciation, plate shape value after its adjustment is 3.71I, specific as follows in Table 2:
Table 2: plate shape curve is changed table for the second time
Plate shape value and preset value after adjusting are judged for the second time, while being still greater than 3IU due to the plate shape value after adjusting, therefore, closing plate shape automatic control system, manually adjust respectively and record roller value, tilting value and the roll shifting value of last sortie milling train, specifically, in Table 3, in the present embodiment, be specially: drive side wave: adjust F5 rack inclining value to-130 μ m.In the wave is high: adjust work roll bending to 19%; Intermediate calender rolls roller is 38%, makes plate shape value after adjusting in 3IU, and its plate shape reaches 1.75IU, then opening board shape automatic control system:
Table 3: plate shape curve is changed table for the third time
The method of adjustment of the cold continuous rolling belt plate shape that the embodiment of the present invention provides, has quantized the adjustment of target flatness curve, makes hand control and automation combine to adjust plate shape curve.Overcome the shortcoming of the single plate shape of hand control and automation method of adjustment, reach the unpredictable element that plate shape is controlled that affects making up in actual production process, make the more intuitive and accurate judgement of operator, operation, guarantee to adjust in time other relevant parameter, improve product strip shape quality.
It should be noted last that, the above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (5)
1. a method of adjustment for cold continuous rolling belt plate shape, is characterized in that, comprises the steps:
In the operation of rolling, by the plate shape measurement roller in plate shape automatic control system, the plate shape in the width section with steel is detected, obtain the described plate shape value with steel;
Described plate shape value and preset value are judged for the first time, when described plate shape value is greater than described preset value, by the parameter value of described plate shape automatic control system adjustment aim plate shape curve, the plate shape value after being adjusted;
Plate shape value after described adjustment and described preset value are judged for the second time, when the plate shape value after adjusting is less than described preset value, record the parameter value of described target flatness curve; When the plate shape value after described adjustment is greater than described preset value, close described plate shape automatic control system, adjust respectively and record the parameter value of last sortie milling train, make the plate shape value after described adjustment be less than described preset value, open described plate shape automatic control system.
2. method according to claim 1, is characterized in that, described plate shape automatic control system is ABB plate shape automatic control system.
3. method according to claim 1, is characterized in that, the parameter value of described target flatness curve comprises tilting value, bending value and the limit depreciation of target flatness curve.
4. method according to claim 1, is characterized in that, the parameter value of described last sortie milling train comprises roller value, tilting value and the roll shifting value of last sortie milling train.
5. according to the arbitrary described method of claim 1-4, it is characterized in that, described preset value is 3IU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554352.7A CN103611731B (en) | 2013-11-08 | 2013-11-08 | A kind of method of adjustment of Cold tandem mill strip steel plate shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554352.7A CN103611731B (en) | 2013-11-08 | 2013-11-08 | A kind of method of adjustment of Cold tandem mill strip steel plate shape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103611731A true CN103611731A (en) | 2014-03-05 |
| CN103611731B CN103611731B (en) | 2016-06-29 |
Family
ID=50162465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310554352.7A Active CN103611731B (en) | 2013-11-08 | 2013-11-08 | A kind of method of adjustment of Cold tandem mill strip steel plate shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103611731B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438353A (en) * | 2014-09-18 | 2015-03-25 | 北京首钢冷轧薄板有限公司 | Process control method for preventing drive side wave shape of strip steel |
| CN105290117A (en) * | 2015-09-23 | 2016-02-03 | 燕山大学 | Grading regulation and control method of high-order flatness defect of ultra-thin cold-rolled strip steel with high width-to-thickness ratio |
| CN112157139A (en) * | 2020-09-22 | 2021-01-01 | 山东钢铁集团日照有限公司 | Method for automatically adjusting strip steel plate type of planisher by means of plate type instrument parameter setting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04288917A (en) * | 1990-12-17 | 1992-10-14 | Siemens Ag | Method for adjusting rolled strip |
| JPH105837A (en) * | 1996-06-14 | 1998-01-13 | Nippon Steel Corp | Method and equipment for cold tandem rolling |
| CN102189117A (en) * | 2010-03-16 | 2011-09-21 | 宝山钢铁股份有限公司 | Cold rolled steel strip straightness feedforward control method based on transverse performance detection |
| CN102688898A (en) * | 2011-03-22 | 2012-09-26 | 宝山钢铁股份有限公司 | Control method for strip shape in rolling of cold-rolling strip steel by two-stand temper mill |
| CN102716915A (en) * | 2011-03-28 | 2012-10-10 | Abb研究有限公司 | Method of flatness control for rolling a strip and control therefor |
-
2013
- 2013-11-08 CN CN201310554352.7A patent/CN103611731B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04288917A (en) * | 1990-12-17 | 1992-10-14 | Siemens Ag | Method for adjusting rolled strip |
| JPH105837A (en) * | 1996-06-14 | 1998-01-13 | Nippon Steel Corp | Method and equipment for cold tandem rolling |
| CN102189117A (en) * | 2010-03-16 | 2011-09-21 | 宝山钢铁股份有限公司 | Cold rolled steel strip straightness feedforward control method based on transverse performance detection |
| CN102688898A (en) * | 2011-03-22 | 2012-09-26 | 宝山钢铁股份有限公司 | Control method for strip shape in rolling of cold-rolling strip steel by two-stand temper mill |
| CN102716915A (en) * | 2011-03-28 | 2012-10-10 | Abb研究有限公司 | Method of flatness control for rolling a strip and control therefor |
Non-Patent Citations (1)
| Title |
|---|
| 汪祥能等: "《现代带钢连轧机控制》", 31 August 1996, article "现代带钢连轧机控制", pages: 208 - 210-213 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438353A (en) * | 2014-09-18 | 2015-03-25 | 北京首钢冷轧薄板有限公司 | Process control method for preventing drive side wave shape of strip steel |
| CN105290117A (en) * | 2015-09-23 | 2016-02-03 | 燕山大学 | Grading regulation and control method of high-order flatness defect of ultra-thin cold-rolled strip steel with high width-to-thickness ratio |
| CN112157139A (en) * | 2020-09-22 | 2021-01-01 | 山东钢铁集团日照有限公司 | Method for automatically adjusting strip steel plate type of planisher by means of plate type instrument parameter setting |
| CN112157139B (en) * | 2020-09-22 | 2021-07-13 | 山东钢铁集团日照有限公司 | Method for automatically adjusting strip steel plate type of planisher by means of plate type instrument parameter setting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103611731B (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109570241B (en) | Wedge-shaped control method with deviation protection | |
| CN102120224B (en) | Control method of automatic deviation correction during rolling of hot continuous rolling mill | |
| CN102581038B (en) | Steel strip tail deviation control method | |
| CN102107219B (en) | Hydraulic control method for asymmetric roller bending of rolling mill | |
| EP1877204A4 (en) | Method and apparatus for controlling strip shape in hot rolling mills | |
| CN107413856B (en) | It is a kind of that roller method is removed based on the change online roll change of specification of ESP mm finishing mill unit | |
| CN103071683A (en) | Comprehensive adjustment rolling technology for double-frame S-shaped four-roll cold rolling mill | |
| CN113333474A (en) | Strip steel hot-rolled plate shape control method and system based on digital twinning | |
| CN102909223B (en) | The control method of Edge shape | |
| CN107931329A (en) | A kind of improvement CSP double fluids change the control method of specification rolling force model precision | |
| CN106914494B (en) | The plat control system and method for hot-strip | |
| CN103949481A (en) | Flatness subsection control method considering both rolling stability and quality of hot rolling band steel | |
| CN104148404A (en) | Hot rolled strip flatness automatic control method | |
| CN103861873B (en) | A kind of UCMW cold continuous rolling texturing rolling system and method | |
| CN103611731A (en) | Tandem cold mill steel strip flatness adjusting method | |
| CN101422785B (en) | Method for adjusting middle-roller drunkenness in double cold reduction shadow-mask strip-steel machine | |
| CN105032945A (en) | Method for evaluating strip shape and strip crown comprehensive control capacity of hot continuous rolling mill | |
| CN109420683A (en) | A kind of control method of hot continuous rolling fine-rolling strip steel edge drop | |
| TWI587936B (en) | Apparatus for controlling plate widths of front and tail ends | |
| CN103962389B (en) | A kind of cooling water nozzle gradient that utilizes arranges the method controlling roll shape roll thermal crown | |
| KR101410130B1 (en) | Method and apparatus of pass line setting during rough plate rolling | |
| CN104942025A (en) | Heredity coefficient compensation method used for hot-rolling coiling temperature model after rolling stops | |
| CN103341504B (en) | Sendzimir rolling mill rolling-plate-shape control method | |
| CN116441324A (en) | Plate-shaped control system | |
| CN102873107A (en) | High-synchronization control method for hot galvanizing finisher press-on system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |
|
| CP01 | Change in the name or title of a patent holder |