CN108655179B - Metal plates and strips roll advancing slip control method - Google Patents
Metal plates and strips roll advancing slip control method Download PDFInfo
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- CN108655179B CN108655179B CN201810553758.6A CN201810553758A CN108655179B CN 108655179 B CN108655179 B CN 108655179B CN 201810553758 A CN201810553758 A CN 201810553758A CN 108655179 B CN108655179 B CN 108655179B
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- advancing slip
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The present invention relates to metal plates and strips products when rolling processing, for plate shape, the surface quality for improving Strip product, further longitudinal direction of the control Strip after roll extends and a kind of method of advancing slip control of use, specially metal plates and strips roll advancing slip control method.On the basis of the advancing slip control of original routine, the laser velocimeter of band speed of service when increasing detection rolling, effectively compensate for the control defect out of control in the case of rectification roll has skidded, simultaneously by advancing slip control in a more accurate range, and the out of control of feedforward and quality flow control is effectively contained under abnormal conditions, has made plate shape, surface quality, size, the precision performance of product when rolling that can be protected.
Description
Technical field
The present invention relates to metal plates and strips product roll processing when, for improve Strip product plate shape, surface quality,
Further longitudinal direction of the control Strip after roll extends and a kind of method of use, specially metal plates and strips roll advancing slip
Control method.
Background technique
In metal plates and strips in Rolling Production, metal longitudinally extends the effect with frictional force when due to rolling, is rolled plate
The muzzle velocity of band is greater than roll linear velocity, and characterising parameter is known as advancing slip value, also referred to as advancing slip, one timing of equipment, preceding
Sliding value is influenced by factors such as the model specifications of the parameters such as rolling mill practice such as tension, rolled lubricating oil, working modulus and product.Production
In the process, it according to the technology of product, quality requirement, is equipped with reasonable technological parameter and is rolled, it is advancing slip then according to the speed of rolls
With rectification roll velocity estimated after machine before machine, once rectification roll speed measuring device break down or rectification roll and Strip between occur
It skids, advancing slip to be just in runaway condition, the plate shape and quality of product will receive influence.
Summary of the invention
In order to realize effective control advancing slip in production process, the present invention provides metal plates and strips to roll advancing slip controlling party
Method.
The present invention adopts the following technical scheme that realization: metal plates and strips roll advancing slip control method, including advancing slip
First judgment method and advancing slip effective supplement judgment method,
Wherein advancing slip just judgment method are as follows: utilize roll linear velocity V and strip speed, that is, rectification roll linear velocity V1Come carry out
Judgement, whenWhen it is advancing slip determine it is correct；
Advancing slip effective supplement judgment method are as follows: laser velocimeter is added between roll and rectification roll, directly detection band
Speed of service V2, according to the parameter of equipment and Product Process parameter, corresponding deviation factor P is calculated, by the V of calculating2-V1
=| △ V | value compared with deviation factor P, | △ V | when < P, the advancing slip value of system-computed is correct and effectively, normally produces by technique；
| △ V | when > P, show that rectification roll is in slipping state, the advancing slip value of calculating is correct but invalid, and operator should suitably adjust immediately
Whole rolling technological parameter, until | △ V | < P, andIt returns to normal production, above-mentioned deviation factorA is
The working modulus of band, B are strain hardening coefficient.
Above-mentioned metal plates and strips roll advancing slip control method, whenAnd | △ V | > P is the advancing slip value nothing calculated
When effect, the data that feedforward is acquired with quality flow control are by rectification roll linear velocity V1It is switched to band speed of service V2, to ensure to be
System control is in normal condition.
The present invention is on the basis of the advancing slip control of original routine, the Laser Measuring of band speed of service when increasing detection rolling
Speed effectively compensates for the control defect out of control in the case of rectification roll has skidded, while advancing slip control is more accurate at one
In range, and out of control, the plate shape of product, surface when making to roll of feedforward and quality flow control under abnormal conditions are effectively contained
Quality, size, precision performance can be protected.
Detailed description of the invention
Fig. 1 is that metal plates and strips roll schematic diagram.
In figure: 1- roll, 2- roll inlet rectification roll, and 3- rolls exit rectification roll.
Specific embodiment
Metal plates and strips roll advancing slip control method, first according to mill speed, i.e. roll linear velocity V and strip speed
That is rectification roll linear velocity V1Determine it is advancing slip, i.e.,When it is advancing slip correct, but will appear deflection roll in actually control and skid
That is V1Value is greater than the actual speed of band, although the advancing slip value calculated at this time correctly actually has already appeared band and rectification roll
Slipping phenomenon, surface quality of strips cannot ensure.It is directly detected further according to the laser velocimeter between roll and rectification roll
Band speed of service V2With rectification roll linear velocity V1Absolute difference, that is, pass through PLC calculate V2-V1=| △ V | it is worth and inclined
Poor FACTOR P compares, and deviation factor P is to calculate gained according to the parameter and Product Process parameter of equipment, | △ V | when < P, system meter
The advancing slip value calculated is correct and effective, normally produces by technique；| △ V | when > P, show that rectification roll is in slipping state, before calculating
Though sliding value is correct still to belong to invalid value, operator should appropriate adjustment rolling technological parameter immediately, until | △ V | < P, andAbove-mentioned deviation factorA is the working modulus of band, for before and after strip-rolling thickness difference with roll
The ratio of thickness before system,B is strain hardening coefficient, which, using fine copper hardness as radix, is current
The ratio of hardness and radix under passage,
Meanwhile that the feedforward control acquisition of system is rolling inlet rectification roll linear velocity V1, the acquisition of quality flow control
Entrance two sides rectification roll linear velocity V when being rolling1, work as V1There is exception in value, i.e.,And | △ V | when > P, feedforward with
Quality flow control is in runaway condition, and data of the system automatically by feedforward and the acquisition of quality flow control are switched to band fortune at this time
Scanning frequency degree V2, to ensure system control in normal condition.
Claims (2)
1. metal plates and strips roll advancing slip control method, it is characterised in that sentence including advancing slip just judgment method and advancing slip effective supplement
Disconnected method,
Wherein advancing slip just judgment method are as follows: judged using roll linear velocity V and strip speed, that is, rectification roll linear velocity V1,
WhenWhen it is advancing slip determine it is correct；
Advancing slip effective supplement judgment method are as follows: laser velocimeter is added between roll and rectification roll, directly the operation of detection band
Speed V2 calculates corresponding deviation factor P according to the parameter of equipment and Product Process parameter, by the V of calculating2-V1=| △
V | value compared with deviation factor P, | △ V | when < P, the advancing slip value of system-computed is correct and effectively, normally produces by technique；|△V
When | > P, show that rectification roll is in slipping state, the advancing slip value of calculating is correct but invalid, and operator appropriate adjustment should roll immediately
Technological parameter processed, until | △ V | < P, andIt returns to normal production, above-mentioned deviation factorA is band
The working modulus of material, be strip-rolling before and after thickness difference and the thickness before rolling ratio,B is that processing is hard
Change coefficient, which, using fine copper hardness as radix, is the ratio of the hardness and radix under current pass,
2. metal plates and strips according to claim 1 roll advancing slip control method, it is characterised in that whenAnd | △
V | when > P is that the advancing slip value of calculating is invalid, the data that feedforward is acquired with quality flow control are by rectification roll linear velocity V1It is switched to band
Material speed of service V2, to ensure system control in normal condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553758.6A CN108655179B (en) | 2018-05-31 | 2018-05-31 | Metal plates and strips roll advancing slip control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553758.6A CN108655179B (en) | 2018-05-31 | 2018-05-31 | Metal plates and strips roll advancing slip control method |
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| Publication Number | Publication Date |
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| CN108655179A CN108655179A (en) | 2018-10-16 |
| CN108655179B true CN108655179B (en) | 2019-08-23 |
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| CN201810553758.6A Active CN108655179B (en) | 2018-05-31 | 2018-05-31 | Metal plates and strips roll advancing slip control method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1752462A1 (en) * | 1990-06-19 | 1992-08-07 | Институт Механики Машин Ан Гсср | Apparatus for automatic control and prevention of slippage of reduction rolling mill rolls |
| CN101332474A (en) * | 2007-06-25 | 2008-12-31 | 宝钢新日铁汽车板有限公司 | Control method of rolling mill capable of preventing slipping |
| CN103028609A (en) * | 2011-09-30 | 2013-04-10 | 鞍钢股份有限公司 | Finishing mill forward slip coefficient control method for eliminating manual intervention speed influence |
| CN103846287A (en) * | 2012-12-05 | 2014-06-11 | 株式会社日立制作所 | Rolling control device and rolling control method |
| CN104001733A (en) * | 2014-03-11 | 2014-08-27 | 广西柳州银海铝业股份有限公司 | Control method for preventing tension measuring roller from slipping relative to continuous rolling strip |
| CN105425585A (en) * | 2015-11-11 | 2016-03-23 | 北京首钢股份有限公司 | Single-frame cold rolling force model and front sliding model debugging method |
| CN106964654A (en) * | 2016-11-07 | 2017-07-21 | 南阳师范学院 | A kind of modeling and simulation method for solving roll-force |
| CN107433288A (en) * | 2016-05-25 | 2017-12-05 | 宝山钢铁股份有限公司 | It is a kind of based on advancing slip milling train Convenient stable criterion |
| CN107583959A (en) * | 2017-09-25 | 2018-01-16 | 北京首钢股份有限公司 | A kind of method and device for compensating the advancing slip value of cold continuous rolling |
-
2018
- 2018-05-31 CN CN201810553758.6A patent/CN108655179B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1752462A1 (en) * | 1990-06-19 | 1992-08-07 | Институт Механики Машин Ан Гсср | Apparatus for automatic control and prevention of slippage of reduction rolling mill rolls |
| CN101332474A (en) * | 2007-06-25 | 2008-12-31 | 宝钢新日铁汽车板有限公司 | Control method of rolling mill capable of preventing slipping |
| CN103028609A (en) * | 2011-09-30 | 2013-04-10 | 鞍钢股份有限公司 | Finishing mill forward slip coefficient control method for eliminating manual intervention speed influence |
| CN103846287A (en) * | 2012-12-05 | 2014-06-11 | 株式会社日立制作所 | Rolling control device and rolling control method |
| CN104001733A (en) * | 2014-03-11 | 2014-08-27 | 广西柳州银海铝业股份有限公司 | Control method for preventing tension measuring roller from slipping relative to continuous rolling strip |
| CN105425585A (en) * | 2015-11-11 | 2016-03-23 | 北京首钢股份有限公司 | Single-frame cold rolling force model and front sliding model debugging method |
| CN107433288A (en) * | 2016-05-25 | 2017-12-05 | 宝山钢铁股份有限公司 | It is a kind of based on advancing slip milling train Convenient stable criterion |
| CN106964654A (en) * | 2016-11-07 | 2017-07-21 | 南阳师范学院 | A kind of modeling and simulation method for solving roll-force |
| CN107583959A (en) * | 2017-09-25 | 2018-01-16 | 北京首钢股份有限公司 | A kind of method and device for compensating the advancing slip value of cold continuous rolling |
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|---|---|
| CN108655179A (en) | 2018-10-16 |
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