CN108273853A - 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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- CN108273853A CN108273853A CN201810051516.7A CN201810051516A CN108273853A CN 108273853 A CN108273853 A CN 108273853A CN 201810051516 A CN201810051516 A CN 201810051516A CN 108273853 A CN108273853 A CN 108273853A
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- roller
- roll
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- roller phase
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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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- Control Of Metal Rolling (AREA)
- 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：Include the following steps：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 change 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 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, roll shifting can play in big section, the later stage, plate shape can be gradually unstable, and roll shifting section should be gradually reduced with the aggravation of abrasion.
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 technology
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 wear extent is big, and other positions wear extent is small.Modern continuous hot-rolling mill has been commonly equipped with working roll roll shifting function, in practical rolling,
In order to which homogeneous roll is worn, 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 roll shifting section in phase, mid-term and later stage different requirements, existing working roll roll shifting mode to be unable to uniform wear energy again
Ensure rolling stability.
Invention content
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 stage, 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 make entire roller phase plate shape stablize, 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 stage, plate shape can be gradually unstable, and roll shifting section should be gradually reduced, and specifically uses following with the aggravation of abrasion
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, then s3=s0；If s4>S1, then s4=s1；If s3>S4, then s3=s4=0；
When certain rack is using cycle 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 change 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 advantages that：The present invention is by establishing a kind of roll shifting section and the mathematical modulo between the roller phase
All kinds of different shifting strategies can be arranged by configuring different parameters in type, are adapted to different rolling milimeter numbers and roll
Regulation processed realizes the rolling stability of different operating mode bottom working roll even wearings and entire roller phase.
Description of the drawings
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 changes 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 pattern Imitating.
Fig. 5 is the roll wear curve simulated after the intelligent roll shifting of the present invention executes.
Specific implementation mode
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 change 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 concrete numerical 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 pattern and intelligent roll shifting pattern, and comparison can be seen
It is more smooth than traditional roller shifting method to go out the wear curve after intelligent roll shifting executes, it is 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 each fallen within protection scope of the present invention.
Technology that the present invention is not described in detail, shape, construction part are known technology.
Claims (3)
1. a kind of continuous hot-rolling mill working roll intelligence roller shifting method, it is characterised in that：Include the following steps：
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 change 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：It is altered in step 1
Roller former designs, and specifically includes：
If roll shifting lower limit, the upper limit are respectively s0, s1, roller phase segments is n, and each section of roller phase separation is Li(i=1,2 ..., n),
Each section of roller phase variable gradient is Gi(i=1,2 ..., n), when the roller phase is L corresponding roll shifting interval limit, the upper limit be respectively s3,
S4, then
If s3<S0, then s3=s0；If s4>S1, then s4=s1；If s3>S4, then s3=s4=0；
When certain rack is using cycle roll shifting, come into operation the function, and rolling milimeter number is subject to last rack, when the roller-changing of part,
The rack rolling milimeter number of non-roll change will add up.
3. 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 |
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| 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 |
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| CN108273853A true CN108273853A (en) | 2018-07-13 |
| CN108273853B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769325A (en) * | 2022-04-26 | 2022-07-22 | 马鞍山钢铁股份有限公司 | Control method for roll shifting of hot continuous rolling CVC working roll |
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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 |
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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 |
| 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 |
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| 李维刚，等.: "热轧带钢窜辊策略与综合辊型的研究及应用", 《钢铁》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769325A (en) * | 2022-04-26 | 2022-07-22 | 马鞍山钢铁股份有限公司 | Control method for roll shifting of hot continuous rolling CVC working roll |
| 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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| CN108273853B (en) | 2019-09-03 |
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