CN1858666A - Control method for acid washing and edge cutting of super low carbon soft steel - Google Patents
Control method for acid washing and edge cutting of super low carbon soft steel Download PDFInfo
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- CN1858666A CN1858666A CN 200510046494 CN200510046494A CN1858666A CN 1858666 A CN1858666 A CN 1858666A CN 200510046494 CN200510046494 CN 200510046494 CN 200510046494 A CN200510046494 A CN 200510046494A CN 1858666 A CN1858666 A CN 1858666A
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- acid washing
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Abstract
This invention provides a controlling method for acid washing and edge-trimming for super-low carbon soft steel including: transmitting an edge-trimming parameter of a level and vertical clearance value of a disk scissor to a primary PLC to adjust the motor to arrive at the control position, in which, the edge-trimming parameter value sent to the PLC is computed by a process computer to a math model in the linearity relation to the thickness of the raw material, which reduces interference by man and increases the cutting accuracy.
Description
Technical field
The present invention relates to a kind of band steel shearing technique, especially a kind of control method for acid washing and edge cutting of super low carbon soft steel.
Prior art
In recent years along with the cut-throat competition with automobile market of developing rapidly of auto industry, deep drawing quality, corrosion stability and high-intensity performance etc. to Automobile Plate require more and more higher, thereby impel the demand of and deep drawability surface of good processing steel plate high to increase considerably to intensity, and the Automobile Plate of these high technology contents offers automobile factory after zinc-plated, this just requires the cold rolling zinc-plated substrate that provides on the basis of satisfying plate shape and thickness requirement, also will have good quality of edges.Because the ultra-low-carbon steel carbon content is very low, is less than generally speaking below 0.003%, material is very soft, and it is bigger to shear difficulty.Like this, for the cold rolling process that substrate is provided to galvanization production line, require strictness more.
Existing cold-rolling pickling is cut in the production run of limit, and control method for acid washing and edge cutting of super low carbon soft steel mainly comprises: send the horizontal clearance value of circle shear and the limit parameter of cutting of down suction value to PLC, adjust motor by PLC and arrive the control position.Generally speaking, the circle shear shear parameters is got by experience, especially when shearing super low carbon soft steel.At first select a thickness, determine a parameter, change another parameter then, draw horizontal clearance and down suction empirical value.There is certain error in the empirical value of the different-thickness of Huo Deing like this, needs manually to regulate repeatedly, causes and cuts limit quality instability.Its defective mainly contains two kinds of forms: a kind of is the unreasonable limit portion burr that causes of shear gap, and this burr can be hung zinc and then cause zinc-plated back product edge thickening when process is zinc-plated; Another kind is to shear that stress is bad to cause frequent tipping.On each rolling mill production line, it is a generally acknowledged difficult problem that ultra-low-carbon steel is cut the limit always in the world, and we had once attempted the empirical parameter of external certain famous iron company, but never obtains effect preferably on production line.
Summary of the invention
The object of the present invention is to provide and a kind ofly can eliminate strip edge portion defective, improve and cut the limit quality, reduce the control method for acid washing and edge cutting of super low carbon soft steel of artificial intervention, so that satisfy the quality requirements of galvanization production line to flat cold-rolled sheet.
The object of the present invention is achieved like this, a kind of control method for acid washing and edge cutting of super low carbon soft steel, mainly comprise: send the horizontal clearance value of circle shear and the limit parameter of cutting of down suction value to primary PLC, adjust motor by PLC and arrive the control position, it is characterized in that giving the circle shear horizontal clearance value of primary PLC and the limit parameter of cutting of down suction value is by mathematical model Y
1=a
1X+b
1Y
2=a
2X+b
2Calculate by process computer; Wherein:
Y
1Represent horizontal clearance, Y
2Represent the down suction, X is a raw thickness, and unit is a millimeter, a
1, b
1, a
2, b
2It is coefficient.
Owing to give the circle shear horizontal clearance value of one-level computing machine among the present invention and the limit parameter of cutting of down suction value is calculated by process computer by mathematical model, reduced artificial intervention, improved shear precision, solved because of adopting the strip edge portion burr that empirical value and the artificial mode of revising bring and the quality problems of frequent tipping, this mathematical model is after on-the-spot actual test, descended about 55% than in the past because of cutting the defect level that causes on the limit, obtained good effect.Also satisfied simultaneously the quality requirements of galvanization production line to flat cold-rolled sheet.
Embodiment
A kind of control method for acid washing and edge cutting of super low carbon soft steel of the present invention mainly comprises: send the horizontal clearance value of circle shear and the limit parameter of cutting of down suction value to primary PLC, adjust motor by PLC and arrive the control position.Giving the circle shear horizontal clearance value of primary PLC and the limit parameter of cutting of down suction value is by mathematical model Y
1=a
1X+b
1Y
2=a
2X+b
2Calculate by process computer; Wherein:
Y
1Represent horizontal clearance, Y
2Represent the down suction value, X is a raw thickness, and unit is a millimeter, a
1, b
1, a
2, b
2It is coefficient.
Control method for acid washing and edge cutting of super low carbon soft steel of the present invention, the span of coefficient is in the mathematical model of cutting the limit parameter of circle shear horizontal clearance value and down suction value: a
1=0.0210～0.0300, b
1=0.071～0.096, a
2=-0.080～-0.092, b
2=0.680～0.821.
Control method for acid washing and edge cutting of super low carbon soft steel of the present invention, the mathematical model of cutting the limit parameter of circle shear horizontal clearance value and down suction value can adopt following several according to the actual needs of producing at least:
Embodiment one: Y
1=0.0210x+0.071
Y
2＝-0.080x+0.680
Embodiment two: Y
1=0.0300x+0.096
Y
2＝-0.092x+0.821
Embodiment three: Y
1=0.0295x+0.084
Y
2＝-0.0873x+0.788
Embodiment four: Y
1=0.0273x+0.079
Y
2＝-0.0830x+0.735
Claims (5)
1, a kind of control method for acid washing and edge cutting of super low carbon soft steel, mainly comprise: send the horizontal clearance value of circle shear and the limit parameter of cutting of down suction value to primary PLC, adjust motor by PLC and arrive the control position, it is characterized in that giving the circle shear horizontal clearance value of primary PLC and the limit parameter of cutting of down suction value is by mathematical model Y
1=a
1X+b
1Y
2=a
2X+b
2Calculate by process computer; Wherein:
Y
1Represent horizontal clearance, Y
2Represent the down suction value, X is a raw thickness, and unit is a millimeter, a
1, b
1, a
2, b
2It is coefficient.
2, control method for acid washing and edge cutting of super low carbon soft steel according to claim 1 is characterized in that the span of coefficient is in the mathematical model: a
1=0.0210～0.0300, b
1=0.071～0.096, a
2=-0.080～-0.092, b
2=0.680～0.821.
3, control method for acid washing and edge cutting of super low carbon soft steel according to claim 1 and 2 is characterized in that the value of coefficient is in the mathematical model: a
1=0.0210, b
1=0.071, a
2=-0.080, b
2=0.680.
4, control method for acid washing and edge cutting of super low carbon soft steel according to claim 1 and 2 is characterized in that the value of coefficient is in the mathematical model: a
1=0.0300, b
1=0.096, a
2=-0.092, b
2=0.821.
5, control method for acid washing and edge cutting of super low carbon soft steel according to claim 1 and 2 is characterized in that the value of coefficient is in the mathematical model: a
1=0.0295, b
1=0.084, a
2=-0.0873, b
2=0.788.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100464948A CN100435054C (en) | 2005-05-20 | 2005-05-20 | Control method for acid washing and edge cutting of super low carbon soft steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100464948A CN100435054C (en) | 2005-05-20 | 2005-05-20 | Control method for acid washing and edge cutting of super low carbon soft steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1858666A true CN1858666A (en) | 2006-11-08 |
| CN100435054C CN100435054C (en) | 2008-11-19 |
Family
ID=37297577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100464948A Expired - Fee Related CN100435054C (en) | 2005-05-20 | 2005-05-20 | Control method for acid washing and edge cutting of super low carbon soft steel |
Country Status (1)
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|---|---|
| CN (1) | CN100435054C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706240A (en) * | 2012-06-13 | 2012-10-03 | 鞍钢股份有限公司 | Method for adjusting horn mouth of circle shears by applying orthogonal method |
| CN102722104A (en) * | 2012-06-29 | 2012-10-10 | 宝山钢铁股份有限公司 | Method for controlling acid-washing and edge-shearing quality of high-strength steel |
| CN103105776A (en) * | 2011-11-15 | 2013-05-15 | 宝山钢铁股份有限公司 | Acid-pickling edge-shearing control method of non-oriented silicon steel |
| CN103357944A (en) * | 2013-07-10 | 2013-10-23 | 河北钢铁股份有限公司邯郸分公司 | IF steel hot rolled materials acid rolling trimming quality control method |
| CN106054616A (en) * | 2016-07-27 | 2016-10-26 | 昆明理工大学 | Titanium tape reel continuous pickling loop sleeve height control method for fuzzy logic optimizing PID controller parameters |
| CN108296551A (en) * | 2018-01-08 | 2018-07-20 | 邯郸钢铁集团有限责任公司 | A kind of end trimming shears method of adjustment promoting deep punching steel trimming quality |
| CN109226260A (en) * | 2018-10-10 | 2019-01-18 | 鞍钢股份有限公司 | A method of avoiding ultra-low-carbon steel edge veining defect |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5464280A (en) * | 1977-10-31 | 1979-05-23 | Nippon Kokan Kk <Nkk> | Process controller for cold rolled steel band producing facilities |
| JPH0663815A (en) * | 1992-08-21 | 1994-03-08 | Nkk Corp | Crop shear controller |
| CN2378142Y (en) * | 1998-08-06 | 2000-05-17 | 济南法因数控机械有限公司 | Digital control double-disc shearing machine |
-
2005
- 2005-05-20 CN CNB2005100464948A patent/CN100435054C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105776B (en) * | 2011-11-15 | 2015-03-04 | 宝山钢铁股份有限公司 | Acid-pickling edge-shearing control method of non-oriented silicon steel |
| CN103105776A (en) * | 2011-11-15 | 2013-05-15 | 宝山钢铁股份有限公司 | Acid-pickling edge-shearing control method of non-oriented silicon steel |
| CN102706240A (en) * | 2012-06-13 | 2012-10-03 | 鞍钢股份有限公司 | Method for adjusting horn mouth of circle shears by applying orthogonal method |
| CN102706240B (en) * | 2012-06-13 | 2014-09-03 | 鞍钢股份有限公司 | Method for adjusting horn mouth of circle shears by applying orthogonal method |
| CN102722104A (en) * | 2012-06-29 | 2012-10-10 | 宝山钢铁股份有限公司 | Method for controlling acid-washing and edge-shearing quality of high-strength steel |
| CN102722104B (en) * | 2012-06-29 | 2013-11-20 | 宝山钢铁股份有限公司 | Method for controlling acid-washing and edge-shearing quality of high-strength steel |
| CN103357944A (en) * | 2013-07-10 | 2013-10-23 | 河北钢铁股份有限公司邯郸分公司 | IF steel hot rolled materials acid rolling trimming quality control method |
| CN103357944B (en) * | 2013-07-10 | 2015-09-02 | 河北钢铁股份有限公司邯郸分公司 | A kind of IF steel hot rolling raw material acid rolls trimming quality control method |
| CN106054616A (en) * | 2016-07-27 | 2016-10-26 | 昆明理工大学 | Titanium tape reel continuous pickling loop sleeve height control method for fuzzy logic optimizing PID controller parameters |
| CN106054616B (en) * | 2016-07-27 | 2018-12-14 | 昆明理工大学 | The titanium strip coil continuous acid-washing looper height control method of fuzzy logic PID controller parameter |
| CN108296551A (en) * | 2018-01-08 | 2018-07-20 | 邯郸钢铁集团有限责任公司 | A kind of end trimming shears method of adjustment promoting deep punching steel trimming quality |
| CN108296551B (en) * | 2018-01-08 | 2020-05-22 | 邯郸钢铁集团有限责任公司 | Trimming shear adjusting method capable of improving trimming quality of deep-drawing steel |
| CN109226260A (en) * | 2018-10-10 | 2019-01-18 | 鞍钢股份有限公司 | A method of avoiding ultra-low-carbon steel edge veining defect |
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| CN100435054C (en) | 2008-11-19 |
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