CN108273853B - A kind of continuous hot-rolling mill working roll intelligence roller shifting method - Google Patents
A kind of continuous hot-rolling mill working roll intelligence roller shifting method Download PDFInfo
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- CN108273853B CN108273853B CN201810051516.7A CN201810051516A CN108273853B CN 108273853 B CN108273853 B CN 108273853B CN 201810051516 A CN201810051516 A CN 201810051516A CN 108273853 B CN108273853 B CN 108273853B
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- roll
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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
- B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls
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- Mechanical Engineering (AREA)
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The present invention relates to a kind of continuous hot-rolling mill working roll intelligence roller shifting methods, it is characterised in that: the following steps are included: Step 1: roll shifting modelling；Step 2: parameter configuration Scheme Choice selects roller phase segments according to the length of roller phase and rolling stable case；Step 3: engineer's interface function is realized, intelligent roll shifting function is added in engineer's picture, can modify roller phase each node milimeter number and each section of gradient, and modified roll shifting section can be shown with roller phase extended change curve.The present invention provides a kind of continuous hot-rolling mill working roll intelligence roller shifting methods, by establishing a kind of roll shifting section and the mathematical model between the roller phase, realization roll shifting section dynamic change with the extension of rolling milimeter number: early period roller phase, plate shape are unstable, and roll shifting section is gradually expanded from 0, mid-term Thermal Profile is stable, abrasion is less big, plate shape is stablized, roll shifting can play in big section, the later period with abrasion aggravation, plate shape can be gradually unstable, and roll shifting section should be gradually reduced.
Description
Technical field
The present invention relates to hot-rolling mill strip production fields, and in particular to a kind of continuous hot-rolling mill working roll intelligence roller shifting method.
Background technique
Working roll is the critical component and wearing detail to contact with the strip in continuous hot-rolling mill.The loss of working roll is mainly
Because there are relative motions between roll and strip, since strip prolongs the flowing velocity of width direction, roll-force is distributed and rolls
The inhomogeneities of the factors such as roll temperature distribution, roll wear amount prolong what the body of roll was unevenly distributed, and general steel edge portion nearby rolls
Roller abrasion loss is big, and other positions abrasion loss is small.Modern continuous hot-rolling mill has been commonly equipped with working roll roll shifting function, actually in rolling,
For homogeneous roll abrasion, working roll can be with the increase of rolling milimeter number, and position constantly changes.Most shifting strategies are to fix
The uniform play in roll shifting section, without preferably considering influence of the differential roller phase roll shifting section to rolling stability, but before the roller phase
All there are different requirements in phase, mid-term and later period to roll shifting section, and existing working roll roll shifting mode is unable to uniform wear energy again
Guarantee rolling stability.
Summary of the invention
To overcome the deficiency, the purpose of the present invention is to provide a kind of continuous hot-rolling mill working roll intelligence roller shifting methods, lead to
It crosses and establishes a kind of roll shifting section and the mathematical model between the roller phase, realize that roll shifting section dynamically becomes with the extension of rolling milimeter number
Change: early period roller phase, plate shape is unstable, and roll shifting section is gradually expanded from 0, and mid-term Thermal Profile is stable, abrasion is less big, and plate shape is steady
It is fixed, roll shifting can play in big section, the later period, plate shape can be gradually unstable, and roll shifting section should be gradually reduced with the aggravation of abrasion,
Can uniform wear can guarantee rolling stability again.
The technical solution adopted by the present invention to solve the technical problems is: a kind of continuous hot-rolling mill working roll intelligence roll shifting side
Method, in order to stablize entire roller phase plate shape, should make roll shifting section with the extension of rolling milimeter number dynamic change, early period roller phase,
Plate shape is unstable, and roll shifting section is gradually expanded from 0, and mid-term Thermal Profile is stable, abrasion is less big, and plate shape is stablized, and roll shifting can be big
Play in section, the later period, plate shape can be gradually unstable, and roll shifting section should be gradually reduced with the aggravation of abrasion, specifically using following
Step:
Step 1: roll shifting modelling, if roll shifting lower limit, the upper limit are respectively s0, s1, roller phase segments is n, each section of roller phase
Separation is Li(i=1,2 ... ..., n), each section of roller phase variable gradient are Gi(i=1,2 ..., n), roller phase corresponding alter when being L
Roller interval limit, the upper limit are respectively s3, s4, then
If s3 < s0, s3=s0；If s4 > s1, s4=s1；If s3 > s4, s3=s4=0；
When certain rack is using circulation roll shifting, come into operation the function；Rolling milimeter number is subject to last rack, part roller-changing
When, the rack rolling milimeter number of non-roll change will add up.
Step 2: parameter configuration Scheme Choice.According to the length of roller phase and rolling stable case, roller phase segments is selected
(being typically chosen 4,6,8)；
Step 3: engineer's interface function is realized, intelligent roll shifting function is added in engineer's picture, can modify the roller phase
Each node milimeter number and each section of gradient, and modified roll shifting section can be shown with roller phase extended change curve.
The invention has the following advantages: the present invention is by establishing a kind of roll shifting section and the mathematical modulo between the roller phase
Type can be set all kinds of different shifting strategies, be adapted to different rolling milimeter numbers and roll by configuring different parameters
Regulation processed realizes the rolling stability of different operating condition bottom working roll even wearings Yu entire roller phase.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention.
Fig. 2 is that the intelligent roll shifting parameter that the present invention designs modifies engineer's picture.
Fig. 3 is the roll shifting section change curve after the given intelligent roll shifting parameter of the present invention.
Fig. 4 is the roll wear curve of traditional roll shifting mode Imitating.
Fig. 5 is the roll wear curve simulated after the intelligent roll shifting of the present invention executes.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.
A kind of continuous hot-rolling mill working roll intelligence roller shifting method as shown in Figure 1:
Step 1: parameter configuration Scheme Choice selects roller phase segments according to the length of roller phase and rolling stable case；
Step 2: engineer's interface function is realized, intelligent roll shifting function is added in engineer's picture, can modify the roller phase
Each node milimeter number and each section of gradient, and modified roll shifting section can be shown with roller phase extended change curve；
Step 3: setting roller phase each node milimeter number and each section of gradient specific value in engineer's picture, roll shifting is formed
Section change curve executes in production.
By using a kind of continuous hot-rolling mill working roll intelligence roller shifting method proposed by the invention, the intelligence given according to Fig. 3
Energy roll shifting curve calculates wear curve such as Fig. 3 and Fig. 4 of F6 under traditional roll shifting mode and intelligent roll shifting mode, and comparison can be seen
Wear curve after intelligent roll shifting executes out is more smooth than traditional roller shifting method, transitional preferable.
The present invention is not limited to the embodiment, anyone should learn that the structure made under the inspiration of the present invention becomes
Change, the technical schemes that are same or similar to the present invention are fallen within the scope of protection of the present invention.
Technology not described in detail in the present invention, shape, construction portion are well-known technique.
Claims (2)
1. a kind of continuous hot-rolling mill working roll intelligence roller shifting method, it is characterised in that: the following steps are included:
Step 1: roll shifting modelling, if roll shifting lower limit, the upper limit are respectively s0, s1, roller phase segments is n, each section of roller phase boundary
Point is Li(i=1,2 ..., n), each section of roller phase variable gradient are Gi(i=1,2 ..., n), roller phase corresponding roll shifting section when being L
Lower limit, the upper limit are respectively s3, s4, then
If s3 < s0, s3=s0；If s4 > s1, s4=s1；If s3 > s4, s3=s4=0；
When certain rack is using circulation roll shifting, come into operation the roll shifting modelling, and rolling milimeter number is subject to last rack, part roll
When roll change, the rack rolling milimeter number of non-roll change will add up；
Step 2: parameter configuration Scheme Choice selects roller phase segments according to the length of roller phase and rolling stable case；
Step 3: engineer's interface function is realized, intelligent roll shifting function is added in engineer's picture, can modify the roller phase respectively saves
Point milimeter number and each section of gradient, and modified roll shifting section can be shown with roller phase extended change curve.
2. a kind of continuous hot-rolling mill working roll intelligence roller shifting method according to claim 1, it is characterised in that: in step 2,
The roller phase segments selection 4,6,8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051516.7A CN108273853B (en) | 2018-01-19 | 2018-01-19 | A kind of continuous hot-rolling mill working roll intelligence roller shifting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051516.7A CN108273853B (en) | 2018-01-19 | 2018-01-19 | A kind of continuous hot-rolling mill working roll intelligence roller shifting method |
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| Publication Number | Publication Date |
|---|---|
| CN108273853A CN108273853A (en) | 2018-07-13 |
| CN108273853B true CN108273853B (en) | 2019-09-03 |
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| CN201810051516.7A Active CN108273853B (en) | 2018-01-19 | 2018-01-19 | A kind of continuous hot-rolling mill working roll intelligence roller shifting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114769325B (en) * | 2022-04-26 | 2023-07-25 | 马鞍山钢铁股份有限公司 | Control method for hot continuous rolling CVC working roll shifting |
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|---|---|---|---|---|
| CN1976768A (en) * | 2004-06-28 | 2007-06-06 | Sms迪马格股份公司 | Method for rolling strips in a roll stand |
| CN101992215A (en) * | 2009-08-13 | 2011-03-30 | 宝山钢铁股份有限公司 | Axial movement control method for continuously variable crown (CVC) working roll |
| CN105598182A (en) * | 2016-01-19 | 2016-05-25 | 北京首钢股份有限公司 | Variable-stroke and variable-step-size roll motion alternating method |
| CN106180211A (en) * | 2016-09-23 | 2016-12-07 | 北京京诚之星科技开发有限公司 | Work Roll of Strip Rolling Mill roll-shifting device |
| CN106862278A (en) * | 2017-04-14 | 2017-06-20 | 北京科技大学 | For variable step roll shifting control method in the cycle of hot rolling downstream frame working roll |
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2018
- 2018-01-19 CN CN201810051516.7A patent/CN108273853B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976768A (en) * | 2004-06-28 | 2007-06-06 | Sms迪马格股份公司 | Method for rolling strips in a roll stand |
| KR101146934B1 (en) * | 2004-06-28 | 2012-05-22 | 에스엠에스 지마크 악티엔게젤샤프트 | Method for rolling strips in a roll stand |
| CN101992215A (en) * | 2009-08-13 | 2011-03-30 | 宝山钢铁股份有限公司 | Axial movement control method for continuously variable crown (CVC) working roll |
| CN105598182A (en) * | 2016-01-19 | 2016-05-25 | 北京首钢股份有限公司 | Variable-stroke and variable-step-size roll motion alternating method |
| CN106180211A (en) * | 2016-09-23 | 2016-12-07 | 北京京诚之星科技开发有限公司 | Work Roll of Strip Rolling Mill roll-shifting device |
| CN106862278A (en) * | 2017-04-14 | 2017-06-20 | 北京科技大学 | For variable step roll shifting control method in the cycle of hot rolling downstream frame working roll |
Non-Patent Citations (1)
| Title |
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| 热轧带钢窜辊策略与综合辊型的研究及应用;李维刚，等.;《钢铁》;20120930(第9期);第43-49页 |
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