CN102247993A - Method for designing and matching roll shape of continuous annealing temper mill - Google Patents
Method for designing and matching roll shape of continuous annealing temper mill Download PDFInfo
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- CN102247993A CN102247993A CN2011101397556A CN201110139755A CN102247993A CN 102247993 A CN102247993 A CN 102247993A CN 2011101397556 A CN2011101397556 A CN 2011101397556A CN 201110139755 A CN201110139755 A CN 201110139755A CN 102247993 A CN102247993 A CN 102247993A
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Abstract
The invention discloses a method for designing and matching the roll shape of a continuous annealing temper mill. The method comprises the following steps of: for the specification of a main roll, collecting and counting a large number of process parameters, actually measuring sheet shape data at site, and analyzing the sheet shape quality problem of different products; providing a sheet shape target on the design of a roll shape for the requirements of different product users on the sheet shape quality, wherein the width of strip steel is taken as the fundamental quantity in the optimization process; selecting different strip steel widths; and designing a roll shape optimization curve which can synchronously meet different strip steel width specifications and different varieties of steels through the finite element simulation of working condition. By the technical scheme, the sheet shape quality of automobile sheets, household appliance sheets and semi-process electrical steel can be remarkably improved, the precision requirements of users on sheet shape indexes of different products are met, and good economic benefit is created. The stability of rolling is improved, the sheet shape quality of the products is improved, and the method has actual promotion and application value.
Description
Technical field
The invention belongs to the technical field that metallurgical industry is produced, relate to the rolling mill practice equipment of sheet material, more particularly, the present invention relates to a kind of company and move back planisher roll shape adaptation design method.
Background technology
Smooth operation is as the later process of cold rolled annealed plate, and its crudy is extremely important.The band steel is handled through bell-type annealing and is had strip shape quality problems such as limit wave, middle wave and wooden dipper song, how to improve strip shape quality by the optimization roll shape and has very important significance.
At present, it is single-stand four-high rolling mill that the Ma Gangyi steel offsets complete machine, and no working roll roll shifting, the no plate profile instrument of outlet can only improve plate shape by visual method by operative employee's adjusting process rule of thumb.There are the following problems:
1, no working roll roll shifting, no plate profile instrument can't be realized closed-loop control, have design defect;
2, planisher is when the band steel of rolling width generation saltus step, operation of rolling instability, roll shape bad adaptability, the problem that flatness defect increases;
3, when positive bending roller force reaches capacity, kink shape defective still can't be eliminated.
There are quality problems in planisher when rolling autobody sheet, household electrical appliances steel plate and semi-technological electrical steel, still can't improve the strip shape quality problem of stepping back existence through cover by operative employee's adjusting process;
Summary of the invention
The problem that the present invention solves provides a kind of company and moves back planisher roll shape adaptation design method, its objective is to improve the rolling stability of steel band and the strip shape quality of product.
To achieve these goals, the technical scheme taked of the present invention is:
Planisher roll shape adaptation design method moves back in this company provided by the present invention, and described planisher comprises backing roll and working roll, and described roll shape adaptation design method is:
1, at the main specification of rolling, by collecting and adding up a large amount of technological parameters, the field measurement board form data is analyzed the strip shape quality problem that different product exists; It is thickness and width that described master rolls specification; Described technological parameter is roll-force, bending roller force, tension force; Described board form data is glacing flatness, convexity.
2,, plate shape target is proposed roll design at the requirement of different product user to strip shape quality; Described requirement to strip shape quality comprises glacing flatness and convexity; Described plate shape target is: mainly pay close attention to limit portion convexity for semi-technological electrical steel; Mainly pay close attention to glacing flatness for the vehicle appliance plate
3, be fundamental quantity with the strip width in the optimization procedure; Choose different strip widths; By the operating mode finite element modelling, design the roll shape that can satisfy different steel width specifications, different cultivars steel simultaneously and optimize curve; Roll under the constant situation of specification width main, simulate the rolling situation of different steel grades by adjusting resistance of deformation.
Described roll shape adaptation design method is:
1, improves the plate shape adaptive capacity of planisher by optimizing described backing roll roll shape to the strip product of different cultivars, specification, increase the plate shape control effect of described work roll bending, and the working roller of cooperation 30um convexity, the production stability of raising formation process; Described work roll bending is the power that adds equidirectional at the roll shaft place, and roller is bent, and by the different roll gap of the crooked generation of roller, comes adjustable plate shape;
2, when design backing roll VCL roller curve, should consider that wide variety, the roller of rolling different cultivars steel press the influence of power distribution, bending roller force modification scope, working roller configuration indirectly, consider factors such as plate shape ability of regulation and control again; By two-dimentional thickening degree FInite Element,, design the working roller scheme that described backing roll is equipped with the 30um convexity again through simulation calculation.
The described backing roll roller curve of final design is six power curves, and its curvilinear equation is:
y＝a
0+a
1x+a
2x
2+a
3x
3+a
4x
4+a
5x
5+a
6x
6
X is for being abscissa with the roller axial line in the following formula, x ∈ [0,1750]; Y is a roll surface curvilinear coordinate radius value; a
0～a
6Be the roller curve coefficient, according to the form below is determined:
| Coefficient | Value |
| a 0 | 1.52151944843E-01 |
| a 1 | 1.36682973969E+00 |
| a 2 | -4.662022050198E-03 |
| a 3 | 8.1095917477403E-06 |
| a 4 | -7.6084117880336E-09 |
| a 5 | 3.663469065050E-12 |
| a 6 | -7.099746300000E-16 |
The present invention adopts technique scheme, a kind of roll shape adaptation design method that can obviously improve Automobile Plate, tame electroplax and semi-technological electrical steel strip shape quality has been proposed on planisher, satisfied the required precision of user, created good economic benefit different product plate shape index.By planisher roll shape coupling design method, improve rolling stability, improve the product strip shape quality, combine by scene trial-production and finite element simulation calculation, considered that simultaneously influence improves all multifactor of planisher strip shape quality.The field shows, the band steel after smooth has been eliminated the various flatness defects that bell-type annealing occurs, and has improved strip shape quality, has guaranteed to produce stable.Roll shape matching method by the technique scheme design extends to similar planisher, is used to improve the strip shape quality of different cultivars steel, has actual application value.
Description of drawings
Below the expressed content of each width of cloth accompanying drawing of this specification is briefly explained:
Fig. 1 is a two-dimentional thickening degree FEM model schematic diagram of the present invention;
Fig. 2 is that smooth unit roll shape of the present invention is optimized curve synoptic diagram;
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and operation principle, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present invention, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The present invention is to provide a kind of company and move back planisher roll shape adaptation design method, described planisher comprises backing roll and working roll.
In order to solve the problem that exists at the described present known technology of this specification background technology part and to overcome its defective, realization improves the goal of the invention of the strip shape quality of rolling stability of steel band and product, and the technical scheme that the present invention takes is:
Planisher roll shape adaptation design method moves back in this company provided by the present invention, and described planisher comprises backing roll and working roll, it is characterized in that described roll shape adaptation design method is:
1, at the main specification of rolling, by collecting and adding up a large amount of technological parameters, the field measurement board form data is analyzed the strip shape quality problem that different product exists; It is thickness and width that described master rolls specification; Described technological parameter is roll-force, bending roller force, tension force; Described board form data is glacing flatness, convexity.
2,, plate shape target is proposed roll design at the requirement of different product user to strip shape quality; Described requirement to strip shape quality comprises glacing flatness and convexity; Described plate shape target is: mainly pay close attention to limit portion convexity for semi-technological electrical steel; Mainly pay close attention to glacing flatness for the vehicle appliance plate
3, be fundamental quantity with the strip width in the optimization procedure; Choose different strip widths; By the operating mode finite element modelling, design the roll shape that can satisfy different steel width specifications, different cultivars steel simultaneously and optimize curve; Roll under the constant situation of specification width main, simulate the rolling situation of different steel grades by adjusting resistance of deformation.
Choose thickness: 0.5mm; Width is three kinds of specification: 1150mm, 1250mm, 1550mm.
The present invention is in order to solve the quality problems of planisher at rolling autobody sheet, household electrical appliances steel plate and semi-technological electrical steel, still can't to improve the strip shape quality problem of stepping back existence through cover by operative employee's adjusting process.Specifically, be in order to solve planisher when the band steel of rolling width generation saltus step, operation of rolling instability, roll shape bad adaptability, the problem that flatness defect increases.By planisher roll shape coupling design method of the present invention, improve rolling stability, improve the product strip shape quality, for enterprise creates good economic benefit.
Roll shape adaptation design method of the present invention is:
1, improves the plate shape adaptive capacity of planisher by optimizing described backing roll roll shape to the strip product of different cultivars, specification, increase the plate shape control effect of described work roll bending, and the working roller of cooperation 30um convexity, the production stability of raising formation process; Described work roll bending is the power that adds equidirectional at the roll shaft place, and roller is bent, and by the different roll gap of the crooked generation of roller, comes adjustable plate shape;
2, when design backing roll VCL roller curve, should consider that wide variety, the roller of rolling different cultivars steel press the influence of power distribution, bending roller force modification scope, working roller configuration indirectly, consider factors such as plate shape ability of regulation and control again; By two-dimentional thickening degree FInite Element,, design the working roller scheme that described backing roll is equipped with the 30um convexity again through simulation calculation.
Because: the pressure distribution inequality is easy to generate roller and peels off, influence of rolled stability; Bending roller force is provided with improper, just can not guarantee belt plate shape; To coming the bad band steel of flitch shape, need to adjust bending roller force and tension force, bending roller force and tension force limit of power there are requirement.
By two-dimentional thickening degree FInite Element, see shown in Figure 1.
Comprehensive above factor through a large amount of simulation calculation, is designed the working roller scheme that the VCL-160 backing roll is equipped with the 30um convexity, sees shown in Figure 2.
Become contact backing roll (Varying Contact-Length, abbreviation VCL) core of technology is to grind special roller curve on backing roll, make roller tie up under the roll-force effect, contacting length between the roller of backing roll and working roll can adapt with the width of roll band steel, eliminate or reduce between roller " being harmful to the contact zone ", improve the lateral stiffness of carrying roll gap, increase the resistivity of milling train plate shape disturbing factor, suppress the generation of flatness defect, make the plate shape of rolling back band steel keep stable.
This roll shape configuration can significantly improve the roller effect, strengthens the limit wave control ability of unit, can be applicable to simultaneously that 1150mm～1550mm width master rolls the plate shape control of product.
The described backing roll roller curve of final design is six power curves, and its curvilinear equation is:
y＝a
0+a
1x+a
2x
2+a
3x
3+a
4x
4+a
5x
5+a
6x
6
X is for being abscissa with the roller axial line in the following formula, x ∈ [0,1750]; Y is a roll surface curvilinear coordinate radius value; a
0～a
6Be the roller curve coefficient, according to the form below is determined:
| Coefficient | Value |
| a 0 | 1.52151944843E-01 |
| a 1 | 1.36682973969E+00 |
| a 2 | -4.662022050198E-03 |
| a 3 | 8.1095917477403E-06 |
| a 4 | -7.6084117880336E-09 |
| a 5 | 3.663469065050E-12 |
| a 6 | -7.099746300000E-16 |
The present invention has obtained the beneficial effect of the following stated:
1, the present invention combines by scene trial-production and finite element simulation calculation, considered that simultaneously influence improves all multifactor of planisher strip shape quality, offset at a steel and to have proposed a kind of roll shape adaptation design method that can obviously improve Automobile Plate, tame electroplax and semi-technological electrical steel strip shape quality on the complete machine, satisfied the required precision of user different product plate shape index.The field shows, the band steel after smooth has been eliminated the various flatness defects that bell-type annealing occurs, and has improved strip shape quality, has guaranteed to produce stable.
2, the roll shape matching method of patent design of the present invention extends to the strip shape quality that similar planisher is used to improve the different cultivars steel, has actual using value.
3, by improving Automobile Plate, tame electroplax and semi-technological electrical steel strip shape quality,, created considerable economic for enterprise sets up good brand image.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (3)
1. planisher roll shape adaptation design method moves back in a company, and described planisher comprises backing roll and working roll, it is characterized in that described roll shape adaptation design method is:
1), at the main specification of rolling, by collecting and add up a large amount of technological parameters, field measurement board form data, the strip shape quality problem that the analysis different product exists; It is thickness and width that described master rolls specification; Described technological parameter is roll-force, bending roller force, tension force; Described board form data is glacing flatness, convexity.
2), at the requirement of different product user, to roll design proposition plate shape target to strip shape quality; Described requirement to strip shape quality comprises glacing flatness and convexity; Described plate shape target is: mainly pay close attention to limit portion convexity for semi-technological electrical steel; Mainly pay close attention to glacing flatness for the vehicle appliance plate
3) be fundamental quantity with the strip width in the optimization procedure; Choose different strip widths; By the operating mode finite element modelling, design the roll shape that can satisfy different steel width specifications, different cultivars steel simultaneously and optimize curve; Roll under the constant situation of specification width main, simulate the rolling situation of different steel grades by adjusting resistance of deformation.
2. move back planisher roll shape adaptation design method according to the described company of claim 1, it is characterized in that: described roll shape adaptation design method is:
1), improves the plate shape adaptive capacity of planisher to the strip product of different cultivars, specification by optimizing described backing roll roll shape, increase the plate shape control effect of described work roll bending, and the working roller of cooperation 30um convexity, the production stability of raising formation process; Described work roll bending is the power that adds equidirectional at the roll shaft place, and roller is bent, and by the different roll gap of the crooked generation of roller, comes adjustable plate shape;
2), when design backing roll VCL roller curve, wide variety, the roller that should consider rolling different cultivars steel presses the influence that power distributions, bending roller force modification scope, working roller are disposed indirectly, considers factors such as plate shape ability of regulation and control again; By two-dimentional thickening degree FInite Element,, design the working roller scheme that described backing roll is equipped with the 30um convexity again through simulation calculation.
3. move back planisher roll shape adaptation design method according to the described company of claim 2, it is characterized in that: finally designing described backing roll roller curve is six power curves, and its curvilinear equation is:
y＝a
0+a
1x+a
2x
2+a
3x
3+a
4x
4+a
5x
5+a
6x
6
X is for being abscissa with the roller axial line in the following formula, x ∈ [0,1750]; Y is a roll surface curvilinear coordinate radius value; a
0～a
6Be the roller curve coefficient, according to the form below is determined:
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| CN 201110139755 CN102247993B (en) | 2011-05-27 | 2011-05-27 | Method for designing and matching roll shape of continuous annealing temper mill |
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| CN 201110139755 CN102247993B (en) | 2011-05-27 | 2011-05-27 | Method for designing and matching roll shape of continuous annealing temper mill |
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| CN102247993B CN102247993B (en) | 2013-01-09 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632111A (en) * | 2012-04-06 | 2012-08-15 | 马钢(集团)控股有限公司 | Semi-process electrical steel plate flattening machine and method for flattening steel plate by using semi-process electrical steel plate flattening machine |
| CN109719136A (en) * | 2018-12-24 | 2019-05-07 | 唐山钢铁集团有限责任公司 | A kind of six power support roller roller curves |
| CN110153183A (en) * | 2019-04-16 | 2019-08-23 | 邯郸钢铁集团有限责任公司 | A kind of negative convexity plain-barreled roll roll shape of Cold-Rolled Strip Temper Mill working roll |
| CN110976518A (en) * | 2019-12-17 | 2020-04-10 | 北京科技大学 | Method for prolonging roll period of 1250 hot continuous rolling finishing mill group |
| CN111546137A (en) * | 2020-05-08 | 2020-08-18 | 山西太钢不锈钢股份有限公司 | Method for grinding combined roll profile of flatness roll convexity |
| CN113714305A (en) * | 2021-07-30 | 2021-11-30 | 安阳钢铁股份有限公司 | Method for improving flat plate shape defect |
| CN114147559A (en) * | 2021-11-22 | 2022-03-08 | 江苏沙钢集团有限公司 | Roll shape configuration method and configuration structure of cold-rolled tin plate continuous annealing line temper mill |
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| US6314776B1 (en) * | 2000-10-03 | 2001-11-13 | Alcoa Inc. | Sixth order actuator and mill set-up system for rolling mill profile and flatness control |
| CN1828616A (en) * | 2006-04-18 | 2006-09-06 | 燕山大学 | Roller type curve design method in thin narrow material smoothing and rolling process |
| CN101038606A (en) * | 2007-04-29 | 2007-09-19 | 武汉科技大学 | Twinning four-high rolling mill self-adaptive roll shape design method |
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2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6314776B1 (en) * | 2000-10-03 | 2001-11-13 | Alcoa Inc. | Sixth order actuator and mill set-up system for rolling mill profile and flatness control |
| CN1828616A (en) * | 2006-04-18 | 2006-09-06 | 燕山大学 | Roller type curve design method in thin narrow material smoothing and rolling process |
| CN101038606A (en) * | 2007-04-29 | 2007-09-19 | 武汉科技大学 | Twinning four-high rolling mill self-adaptive roll shape design method |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632111A (en) * | 2012-04-06 | 2012-08-15 | 马钢(集团)控股有限公司 | Semi-process electrical steel plate flattening machine and method for flattening steel plate by using semi-process electrical steel plate flattening machine |
| CN102632111B (en) * | 2012-04-06 | 2015-04-01 | 马钢(集团)控股有限公司 | Steel plate flattening machine and method for flattening steel plate by using steel plate flattening machine |
| CN109719136A (en) * | 2018-12-24 | 2019-05-07 | 唐山钢铁集团有限责任公司 | A kind of six power support roller roller curves |
| CN109719136B (en) * | 2018-12-24 | 2021-02-26 | 唐山钢铁集团有限责任公司 | Roll-shaped curve of hexagonal square supporting roll |
| CN110153183A (en) * | 2019-04-16 | 2019-08-23 | 邯郸钢铁集团有限责任公司 | A kind of negative convexity plain-barreled roll roll shape of Cold-Rolled Strip Temper Mill working roll |
| CN110976518A (en) * | 2019-12-17 | 2020-04-10 | 北京科技大学 | Method for prolonging roll period of 1250 hot continuous rolling finishing mill group |
| CN111546137A (en) * | 2020-05-08 | 2020-08-18 | 山西太钢不锈钢股份有限公司 | Method for grinding combined roll profile of flatness roll convexity |
| CN113714305A (en) * | 2021-07-30 | 2021-11-30 | 安阳钢铁股份有限公司 | Method for improving flat plate shape defect |
| CN114147559A (en) * | 2021-11-22 | 2022-03-08 | 江苏沙钢集团有限公司 | Roll shape configuration method and configuration structure of cold-rolled tin plate continuous annealing line temper mill |
| CN114147559B (en) * | 2021-11-22 | 2024-04-30 | 江苏沙钢集团有限公司 | Roll configuration method and configuration structure of cold-rolled tin sheet continuous annealing line leveling machine |
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| CN102247993B (en) | 2013-01-09 |
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