CN106825058A - ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method - Google Patents
ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method Download PDFInfo
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- CN106825058A CN106825058A CN201611258842.2A CN201611258842A CN106825058A CN 106825058 A CN106825058 A CN 106825058A CN 201611258842 A CN201611258842 A CN 201611258842A CN 106825058 A CN106825058 A CN 106825058A
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- Prior art keywords
- strip section
- continuous casting
- coefficient
- esp
- local high
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Classifications
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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
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
Abstract
The present invention provides a kind of ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method to be included：The local high spot of strip section is obtained according to support roller length and roll shifting coefficient, specially following statement：Wherein, h represents the local high spot of strip section, h≤15 μ 5；A is coefficient, a ≈ 158；B is coefficient, b ≈ 0.13；C is coefficient, c ≈ 0.5；The local high spot of local high spot and the strip section for obtaining according to default strip section, is adjusted, to support roller length and roll shifting coefficient so as to realize the control of thin gauge strip cross dimensions.Using the present invention, limit thin gauge strip shape wave is can solve the problem that, drum is played, is played the flatness defect problems such as muscle.
Description
Technical field
The present invention relates to steel rolling metal-pressed machine technical field, more specifically, it is related to a kind of ESP sheet blank continuous castings to connect
Roll and the shifting strategy method that Thin Specs control strip section size is applied under production line endless rolling.
Background technology
ESP realizes most thin 0.8mm specifications rolling as advanced strip production technology without a head.Limit thin gauge strip without
In the head operation of rolling, plate shape state, cross dimensions local high spot are difficult to control, and coil of strip muscle has easily occurred, played the defects such as drum.Its
In, plate shape cross dimensions local high spot is larger, and fluctuation is big (0~40 μm), the larger 0~600I of shape wave control fluctuation.It is main former
Because as follows：
1st, in hot continuous rolling roll box abrasion and cat ear shape concentrated wear presence, steel edge portion easily occur it is right therewith
The local high spot answered, causes section and shape wave to be deteriorated；
2nd, carry out being rolled with wide under same crystallizer Mould Breadth when ESP is rolled, with milimeter number increase, working roller abrasion amount
Greatly, while being influenceed by the strip section temperature difference, working roll shifting strategy, bending roller force, rolling centerline etc., strip section size part
High point outstanding problem.
In order to solve the above problems, the present invention proposes to be applied under a kind of ESP sheet billet continuous casting and rolling production lines endless rolling
The shifting strategy method of strip section size is controlled in Thin Specs.
The content of the invention
In view of the above problems, break it is an object of the invention to provide a kind of ESP sheet billet continuous casting and rolling production lines control strip
Face size shifting strategy method, to solve the problems, such as limit thin gauge strip shape wave, play the flatness defects such as drum, a muscle.
The present invention provides a kind of ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method bag
Include：The local high spot of strip section is obtained according to support roller length and roll shifting coefficient, specially following statement：
H=a-b* support roller length-c* roll shifting coefficients
Wherein, h represents the local high spot of the strip section, h≤15 μ 5；
A is coefficient, a ≈ 158；B is coefficient, b ≈ 0.13；C is coefficient, c ≈ 0.5；
The local high spot of local high spot according to default strip section and the strip section for obtaining, to support roller length and
Roll shifting coefficient is adjusted, so as to realize the control of thin gauge strip cross dimensions.
Furthermore it is preferred that scheme be that, also including the technique of optimization generation thin gauge strip, the technique of specific optimization is：
In ESP producing lines, the continuous casting section temperature difference be≤40 DEG C, continuous casting billet use 90~95mm, pulling speed of continuous casting be 5.0~
5.8m/min, roughing convexity is -350~-400 μm；
There is an induction heater after roughing, before finish rolling, sensing heating heater outlet temperature is 1100~1180 DEG C.
Furthermore it is preferred that scheme be that in ESP producing lines, first to the 3rd milling train uses recessed roller mill, the 4th to the 8th
Platform milling train uses taper rolls, and increases the roll-force of the taper rolls, and incrementss are 100~300t.
Furthermore it is preferred that scheme be that thin gauge strip thickness range is：0.8~1.2mm.
Knowable to technical scheme above, the ESP sheet billet continuous casting and rolling production lines control strip section that the present invention is provided
Size shifting strategy method, by computational methods of the present invention and technique adjustment, realizes ESP endless rolling limit inferior Thin Specs sections
Dimensionally stable is controlled, and local high spot is controlled in≤15 μ ms.
In order to realize above-mentioned and related purpose, one or more aspects of the invention include the spy that will be explained in below
Levy.Following explanation and accompanying drawing is described in detail some illustrative aspects of the invention.However, these aspects are indicated only
It is some modes in the various modes for can be used principle of the invention.Additionally, it is contemplated that including all these aspects with
And their equivalent.
Brief description of the drawings
By reference to the explanation below in conjunction with accompanying drawing, and be more fully understood from to of the invention, it is of the invention other
Purpose and result will be more apparent and should be readily appreciated that.In the accompanying drawings：
Fig. 1 is to control strip section size roll shifting plan according to the ESP sheet billet continuous casting and rolling production lines of the embodiment of the present invention
Omit method flow schematic diagram.
Identical label indicates similar or corresponding feature or function in all of the figs.
Specific embodiment
In the following description, for purposes of illustration, in order to provide the comprehensive understanding to one or more embodiments, explain
Many details are stated.It may be evident, however, that these embodiments can also be realized in the case of without these details.
Specific embodiment of the invention is described in detail below with reference to accompanying drawing.
In order to illustrate the ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy side of present invention offer
Method, Fig. 1 shows ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy according to embodiments of the present invention
Method flow.
As shown in figure 1, the ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy that the present invention is provided
Method includes：
S110：The local high spot of strip section is obtained according to support roller length and roll shifting coefficient, specially following statement：
H=a-b* support roller length-c* roll shifting coefficients
Wherein, h represents the local high spot of the strip section, h≤15 μm；
A is coefficient, a ≈ 158；B is coefficient, b ≈ 0.13；C is coefficient, c ≈ 0.5；
S120：The local high spot of local high spot and the strip section for obtaining according to default strip section, to support roller
Length and roll shifting coefficient are adjusted, so as to realize the control of thin gauge strip cross dimensions.
Above-mentioned is the method for controlling the shifting strategy of strip section size, additionally includes generation thin gauge strip technique
Adjustment, concrete technology adjusts process and is：
In ESP producing lines, the continuous casting section temperature difference is≤40 DEG C, and continuous casting billet uses 90~95mm, during limit ultra-thin gauge rolling
Realize 5.0~5.8m/min of pulling speed of continuous casting, rough rolling working roll roller shape：About -350~-400 μm of roughing Crown control.
In the present invention during ESP belt steel rollings without a head, there is an induction heater after roughing, before finish rolling, sensing adds
Hot heater outlet temperature is 1100~1180 DEG C.
Also, in ESP producing lines, first to the 5th milling train uses recessed roller mill, and the 5th to the 7th milling train is using cone
Shape roller mill, and increase the roll-force of taper rolls, incrementss are 100~300t.
In an embodiment of the present invention, thin gauge strip thickness range is：0.8~1.2mm.
, wherein it is desired to explanation, formula application and it is actually detected in there is a little error, and error is less than
1.5 μm, be exactly in allowed limits.
According to above-mentioned method and matched modification technique, there are following examples：
Embodiment one：As support roller length=1160mm, roll shifting coefficient=- 6, a ≈ 158, b ≈ 0.13, c ≈ 0.5, then：
H=a-b* support roller length-c* roll shifting coefficients
≈158-0.13*1160-0.5*(-6)
≈10.2μm
The actual local high spot average value of strip section is 11.4 μm<15 μm, 1.16 μm of of error.
Embodiment two：As support roller length=1160mm, roll shifting coefficient=- 9, a ≈ 158, b ≈ 0.13, c ≈ 0.5, then：
H=a-b* support roller length-c* roll shifting coefficients
≈158-0.13*1160-0.5*(-9)
≈11.7μm
The actual local high spot average value of strip section is 12.9 μm<15 μm, 1.17 μm of of error.
Embodiment three：As support roller length=1160mm, roll shifting coefficient=- 13, a ≈ 158, b ≈ 0.13, c ≈ 0.5, then：
H=a-b* support roller length-c* roll shifting coefficients
≈158-0.13*1160-0.5*(-13)
≈13.7μm
The actual local high spot average value of strip section is 14.9 μm<15 μm, 1.17 μm of error
Wherein, from above-described embodiment one to embodiment three in as can be seen that in embodiment one, formula calculates result
It it is 10.2 μm, the actually detected result for drawing is 11.36 μm, error is 1.16 μm.
In embodiment two, it is 11.7 μm that formula calculates result, and the actually detected result for drawing is 12.87 μm, by mistake
Difference is 1.17 μm.
In embodiment three, it is 13.7 μm that formula calculates result, and the actually detected result for drawing is 14.87 μm, by mistake
Difference is 1.17 μm.
In above three embodiment, formula is calculated and the actually detected result for drawing is respectively 1.16 μm, 1.17 μm, 1.17
μm, respectively less than 1.5 μm, error is in allowed limits.
The ESP sheet billet continuous casting and rolling production lines that can be seen that present invention offer by above-mentioned implementation method control strip
Cross dimensions shifting strategy method, by computational methods of the present invention and technique adjustment, realizes ESP endless rolling limit inferior Thin Specs
Cross dimensions stability contorting, local high spot is controlled in≤15 μ ms.
Described in an illustrative manner above with reference to accompanying drawing according to ESP sheet billet continuous casting and rolling production lines proposed by the present invention
Control strip section size shifting strategy method.It will be understood by those skilled in the art, however, that being proposed for the invention described above
ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method, can also not depart from the present invention
Various improvement are made on the basis of appearance.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (4)
1. a kind of ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method, it is characterised in that bag
Include：
The local high spot of strip section is obtained according to support roller length and roll shifting coefficient, specially following statement：
H=a-b* support roller length-c* roll shifting coefficients
Wherein, h represents the local high spot of the strip section, h≤15 μ 5；
A is coefficient, a ≈ 158；B is coefficient, b ≈ 0.13；C is coefficient, c ≈ 0.5；
The local high spot of local high spot according to default strip section and the strip section for obtaining, to the support roller length and
Roll shifting coefficient is adjusted, so as to realize the control of thin gauge strip cross dimensions.
2. ESP sheet billet continuous casting and rolling production lines as claimed in claim 1 control strip section size shifting strategy method, its
It is characterised by, also including the technique of optimization generation thin gauge strip, the technique of specific optimization is：
In ESP producing lines, the continuous casting section temperature difference is≤40 DEG C, and continuous casting billet uses 90~95mm, and pulling speed of continuous casting is 5.0~5.8m/
Min, roughing convexity is -350~-400 μm；
There is an induction heater after roughing, before finish rolling, sensing heating heater outlet temperature is 1100~1180 DEG C.
3. ESP sheet billet continuous casting and rolling production lines as claimed in claim 1 control strip section size shifting strategy method, its
It is characterised by,
In ESP producing lines, first to the 3rd milling train uses recessed roller mill, the 4th to the 8th milling train to use taper rolls,
And increase the roll-force of the taper rolls, incrementss are 100~300t.
4. ESP sheet billet continuous casting and rolling production lines as claimed in claim 1 control strip section size shifting strategy method, its
It is characterised by,
Thin gauge strip thickness range is：0.8~1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258842.2A CN106825058A (en) | 2016-12-30 | 2016-12-30 | ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258842.2A CN106825058A (en) | 2016-12-30 | 2016-12-30 | ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method |
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|---|---|
| CN106825058A true CN106825058A (en) | 2017-06-13 |
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| CN201611258842.2A Pending CN106825058A (en) | 2016-12-30 | 2016-12-30 | ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604697A (en) * | 2020-05-31 | 2020-09-01 | 日照宝华新材料有限公司 | Control method for transverse folding defect of thin-specification low-carbon steel |
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| JPS61144202A (en) * | 1984-12-19 | 1986-07-01 | Kawasaki Steel Corp | Rolling method for controlling shape of sheet stock |
| JPH06262235A (en) * | 1993-03-15 | 1994-09-20 | Sumitomo Metal Ind Ltd | Method for controlling thickness using work roll shift mill |
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| CN101301659A (en) * | 2008-03-15 | 2008-11-12 | 燕山大学 | On-line method for setting mechanism model-based plate parameter of double UCM temper milling machine group |
| CN103920723A (en) * | 2014-04-28 | 2014-07-16 | 武汉钢铁(集团)公司 | Detection method for strip steel local high point |
| CN106140829A (en) * | 2015-03-27 | 2016-11-23 | 上海梅山钢铁股份有限公司 | Produce the method for local high spot based on the hot-strip that prevents of CVC roller shape |
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2016
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Patent Citations (6)
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|---|---|---|---|---|
| JPS61144202A (en) * | 1984-12-19 | 1986-07-01 | Kawasaki Steel Corp | Rolling method for controlling shape of sheet stock |
| JPH06262235A (en) * | 1993-03-15 | 1994-09-20 | Sumitomo Metal Ind Ltd | Method for controlling thickness using work roll shift mill |
| JP2004050221A (en) * | 2002-07-18 | 2004-02-19 | Ishikawajima Harima Heavy Ind Co Ltd | Equipment and method for producing strip plate |
| CN101301659A (en) * | 2008-03-15 | 2008-11-12 | 燕山大学 | On-line method for setting mechanism model-based plate parameter of double UCM temper milling machine group |
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| 唐亮: "CVCplus辊系磨损对板形的影响与解决措施", 《本钢技术》 * |
| 邵健等: "热轧工作辊变行程窜辊策略", 《北京科技大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604697A (en) * | 2020-05-31 | 2020-09-01 | 日照宝华新材料有限公司 | Control method for transverse folding defect of thin-specification low-carbon steel |
| CN111604697B (en) * | 2020-05-31 | 2021-05-14 | 日照宝华新材料有限公司 | Control method for transverse folding defect of thin-specification low-carbon steel |
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Application publication date: 20170613 |
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