CN108723099A - A kind of ferrite rolling method and device based on output strip line without a head - Google Patents
A kind of ferrite rolling method and device based on output strip line without a head Download PDFInfo
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- CN108723099A CN108723099A CN201810573666.4A CN201810573666A CN108723099A CN 108723099 A CN108723099 A CN 108723099A CN 201810573666 A CN201810573666 A CN 201810573666A CN 108723099 A CN108723099 A CN 108723099A
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- strip
- coefficient
- resistance
- temperature
- deformation
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- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 51
- 238000005096 rolling process Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 45
- 238000004364 calculation method Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 230000006698 induction Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/04—Ferritic rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The present invention relates to a kind of ferrite rolling method and devices based on output strip line without a head, including：Actual temperature of the acquisition strip in each finishing stand；The finishing temperature that austenite is converted into according to the ferrite of the actual temperature and the strip obtains in the strip austenite phase and ferritic phase respectively proportion；According to austenite phase in the strip and ferritic phase, respectively proportion calculates the resistance of deformation coefficient of the strip, and the resistance of deformation of the strip is calculated according to the resistance of deformation coefficient；According to the resistance of deformation of the strip, rolling parameter is set.After adopting this method, induction heater power reduces, same specification entry temperature at finishing reduces, rolling load reduces and model specification is accurate, and thickness deviation is minimum.The effect for reaching energy-saving and emission-reduction, steel rolling quality being provided.
Description
Technical field
The invention belongs to steel rolling technical fields, and in particular to the ferrite rolling method based on output strip line without a head
And device.
Background technology
Ferrite rolling has big advantage in simplified technique, energy saving etc., can by ferrite region rolling
Produce a kind of cheap, matter is soft, qualified hot rolled plate that can be used directly or produced for subsequent pickling and cold-rolling line.Strip without a head
Production line (ESP producing lines) is more commonly used hot-rolled steel production equipment, in the advantage of investment, production, energy-saving and environmental protection etc.
Make its be becoming tight in face of resource environment constraint, energy-saving and emission-reduction pressure increased steel and iron industry environment when, show huge advantage.It opens
Ferrite rolling of the hair based on output strip line without a head has the advantage that：ESP producing line induction heater power consumptions are reduced, reduction is rolled
Load processed, it is energy saving；Roll wear is reduced, production efficiency is improved；The generation of iron scale is reduced, steel strip surface matter is improved
Amount；Be conducive to texture controlling, produce the high hot rolled thin specification kind of deep drawability.
Belt steel rolling model is the core control system of output strip line without a head (ESP producing lines), the strip of existing ESP producing lines
Rolling model is Ovshinsky body Model, and rolling parameter is set both for the characteristic of austenite.Therefore existing ESP producing lines
It cannot be used directly for ferrite rolling.
Invention content
It is an object of the present invention to design a kind of FPGA online upgradings in view of the above-mentioned drawbacks of the prior art, providing
Method, apparatus, equipment and storage medium, to solve the above technical problems.
In a first aspect, the embodiment of the present application provides a kind of ferrite rolling method based on output strip line without a head, including：
Actual temperature of the acquisition strip in each finishing stand；It is converted into Ovshinsky according to the ferrite of the actual temperature and the strip
The finishing temperature of body obtains in the strip austenite phase and ferritic phase respectively proportion；According to austenite in the strip
Mutually respectively proportion calculates the resistance of deformation coefficient of the strip with ferritic phase, and is calculated according to the resistance of deformation coefficient
The resistance of deformation of the strip；According to the resistance of deformation of the strip, rolling parameter is set.
With reference to first aspect, in the first embodiment of first aspect, according to the actual temperature and the strip
Ferrite be converted into the finishing temperature of austenite and obtain in the strip austenite phase and ferritic phase respectively proportion
Including：By the difference of finishing temperature and actual temperature than upper phase transformation conversion temperature section, temperature proportional coefficient is obtained；According to the temperature
It spends proportionality coefficient and calculates in the strip austenite phase and ferritic phase respectively proportion.
With reference to first aspect, in second of embodiment of first aspect, according to austenite phase and iron in the strip
Mutually respectively proportion calculates the resistance of deformation coefficient of the strip and includes ferritic：By austenite deformation resistance coefficient and austenite
The sum of products Ferrite Deformation resistance coefficient of proportion is added with ferrite proportion, obtains the resistance of deformation of the strip
Coefficient.
With reference to first aspect, in the third embodiment of first aspect, this method further includes：By reading the nothing
Strip Wen Sheng described in the power calculation of heating furnace in the rigid production line of headband.
Second aspect, the embodiment of the present application provide a kind of ferrite rolling device based on output strip line without a head, including：
Temperature acquiring unit, be configured to obtain strip each finishing stand actual temperature；Ratio computing unit, is configured to basis
The finishing temperature that the ferrite of the actual temperature and the strip is converted into austenite obtains austenite phase in the strip
With the respective proportion of ferritic phase；Coefficient calculation unit is configured to according to austenite phase and ferritic phase in the strip
Respective proportion calculates the resistance of deformation coefficient of the strip, and the change of the strip is calculated according to the resistance of deformation coefficient
Shape drag；Parameter set unit is configured to that rolling parameter is arranged according to the resistance of deformation of the strip.
In conjunction with second aspect, in the first embodiment of second aspect, ratio computing unit includes：Ratio calculates mould
Block is configured to temperature proportional module, is configured to the difference of finishing temperature and actual temperature than upper phase transformation conversion temperature section,
Obtain temperature proportional coefficient；Coefficient ratio module is configured to calculate Ovshinsky in the strip according to the temperature proportional coefficient
Body proportion.
In conjunction with second aspect, in second of embodiment of second aspect, coefficient calculation unit includes：Coefficient calculates mould
Block is configured to the sum of products Ferrite Deformation resistance coefficient and iron of austenite deformation resistance coefficient and austenite proportion
Ferritic proportion is added, and obtains the resistance of deformation coefficient of the strip.
In conjunction with second aspect, in the third embodiment of second aspect, device further includes：Temperature rises computing unit, matches
It sets for by reading strip Wen Sheng described in the power calculation of the heating furnace in the no rigid production line of headband.
The beneficial effects of the present invention are,
It is provided by the invention based on the ferrite rolling method and device of output strip line without a head by detecting strip in real time
Temperature, and the resistance of deformation coefficient of strip is calculated according to belt steel temperature and then rolling parameter is set.Model provided by the invention
The resistance of deformation of output more meets strip in the practical distortion drag of ferrite phase region, the weight such as the roll-force of model calculating and roll gap
Want parameter more accurate.After ferrite rolling model using the present invention calculates, the reduction of induction heater power, same specification finish rolling
Inlet temperature reduces, rolling load reduces and model specification is accurate, and thickness deviation is minimum.It reaches energy-saving and emission-reduction, steel rolling is provided
The effect of quality.
In addition, design principle of the present invention is reliable, and it is simple in structure, there is very extensive application prospect.
It can be seen that compared with prior art, the present invention with substantive distinguishing features outstanding and significantly improving, implementation
Advantageous effect be also obvious.
Description of the drawings
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the ferrite rolling method flow diagram provided by the embodiments of the present application based on output strip line without a head.
Specific implementation mode
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, is illustrated only in attached drawing and invent relevant part.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The present embodiment provides a kind of ferrite rolling methods based on output strip line without a head, referring to FIG. 1, specific steps
It is as follows：
S1, strip Wen Sheng is calculated：
Since ferrite rolling is not considered in model, the induction heater work(of model setting when carrying out ausrolling
Rate is bigger than normal, it is contemplated that the power very little of actual sensed heating furnace when ferrite rolling compiles induction heater part into line code
It writes, the power of model read scene actual sensed stove carries out strip temperature and rises calculating.
T '=(Active Power*Effic iency* (Length/V) * Tfactor) * Tthick-Ttras
T'：Strip Wen Sheng
Active Power：Induction furnace actual power
Efficiency：Induction furnace power is applied to the coefficient of efficiency on strip
Length：Incude furnace length
V：Strip actual speed
Tfactor：Temperature sensing coefficient
Tthick：Thickness effect coefficient
Ttras：Strip heat transfer temperature drop
S2, strip ferrite rolling flag bit is added in the database, ferrite rolling is arranged in rolling model programming
Type, and be called in a model.Increase strip ferrite rolling flag bit in database, when ferrite rolling flag bit is set
After being set to work(, ferrite rolling type is matched with the ferrite rolling flag bit in database in model, according to ferrite mark
It is denoted as selection ferrite model and carries out setup algorithm.
S3, the actual temperature for obtaining strip in real time.Strip Ac3 temperature (Ac3 is calculated with practical chemical composition：Hypo eutectoid
When steel heats, all ferrites are changed into the temperature of austenite).
According to austenite phase and ferrite of the strip in each rack entrance actual temperature of finish rolling calculates each rack strip
The ratio of phase.Austenite proportion is set in strip as p0, ferrite proportion is p,
Wherein, A is temperature proportional coefficient, and t is actual temperature, and T is that (i.e. strip is opened by ferrite in phase transformation conversion temperature section
Begin temperature range of the ferrite into the temperature to strip that austenite converts when being completely converted into austenite)
p0=f1* (f2-sin (a sin (f3) * A))
Wherein, f1, f2, f3 are respectively empirical coefficient.
P=1-p0
It is p according to calculated austenite proportion0It is p with ferrite proportion, calculates strip plastic deformation drag system
Number, resistance of deformation coefficient herein refer both to the resistance of deformation coefficient set in model for calculating,
Strip plastic deformation resistance coefficient k=k1·p0+k2·p
Wherein, k is strip plastic deformation resistance coefficient；k1For austenite deformation resistance coefficient；k2For Ferrite Deformation drag system
Number.
Model calculates strip plastic deformation drag according to strip plastic deformation resistance coefficient.
S4, model are exported according to strip plastic deformation resistance coefficient pricks the setting data such as intelligence, roll gap, utilizes these data updates
Model parameter simultaneously sends data to level-one automation.
The present embodiment provides a kind of ferrite rolling devices based on output strip line without a head, including：Temperature acquiring unit,
Be configured to obtain strip each finishing stand actual temperature；Ratio computing unit is configured to according to the actual temperature
It is each that austenite phase and ferritic phase in the finishing temperature acquisition strip of austenite are converted into the ferrite of the strip
From proportion；Coefficient calculation unit is configured to according to the respective proportion of austenite phase in the strip and ferritic phase
The resistance of deformation coefficient of the strip is calculated, and calculates the resistance of deformation of the strip according to the resistance of deformation coefficient；Parameter
Setting unit is configured to that rolling parameter is arranged according to the resistance of deformation of the strip.
Wherein, ratio computing unit includes：Ratio computing module is configured to temperature proportional module, is configured to end
The difference of temperature and actual temperature obtains temperature proportional coefficient than upper phase transformation conversion temperature section；Coefficient ratio module, configuration are used
In calculating in the strip austenite phase and ferritic phase respectively proportion according to the temperature proportional coefficient.
Coefficient calculation unit includes：Coefficients calculation block is configured to austenite deformation resistance coefficient and austenite institute
The sum of products Ferrite Deformation resistance coefficient of accounting example is added with ferrite proportion, obtains the resistance of deformation system of the strip
Number.
Device further includes：Temperature rises computing unit, is configured to read the heating furnace in the rigid production line of no headband
Power calculation described in strip Wen Sheng.
Disclosed above is only the preferred embodiment of the present invention, but the present invention is not limited to this, any this field
What technical staff can think does not have a creative variation, and without departing from the principles of the present invention made by several improvement and
Retouching, should all be within the scope of the present invention.
Claims (8)
1. a kind of ferrite rolling method based on output strip line without a head, which is characterized in that the method includes：
Actual temperature of the acquisition strip in each finishing stand；
The finishing temperature that austenite is converted into according to the ferrite of the actual temperature and the strip obtains in the strip
The respective proportion of austenite phase and ferritic phase；
According to austenite phase in the strip and ferritic phase, respectively proportion calculates the resistance of deformation coefficient of the strip, and
The resistance of deformation of the strip is calculated according to the resistance of deformation coefficient；
According to the resistance of deformation of the strip, rolling parameter is set.
2. according to the method described in claim 1, it is characterized in that, described according to the iron of the actual temperature and strip element
Body is converted into austenite phase and ferritic phase in the finishing temperature acquisition strip of austenite, and respectively proportion includes：
By the difference of finishing temperature and actual temperature than upper phase transformation conversion temperature section, temperature proportional coefficient is obtained；
Austenite phase and ferritic phase respectively proportion are calculated in the strip according to the temperature proportional coefficient.
3. according to the method described in claim 1, it is characterized in that, described according to austenite phase and ferritic phase in the strip
The resistance of deformation coefficient that respective proportion calculates the strip includes：
By austenite deformation resistance coefficient and the sum of products Ferrite Deformation resistance coefficient of austenite proportion and ferrite institute
Accounting example is added, and obtains the resistance of deformation coefficient of the strip.
4. according to the method described in claim 1, it is characterized in that, the method further includes：
By reading strip Wen Sheng described in the power calculation of the heating furnace in the no rigid production line of headband.
5. a kind of ferrite rolling device based on output strip line without a head, which is characterized in that described device includes：
Temperature acquiring unit, be configured to obtain strip each finishing stand actual temperature；
Ratio computing unit is configured to be converted into the end of austenite according to the ferrite of the actual temperature and the strip
Temperature obtains in the strip austenite phase and ferritic phase respectively proportion；
Coefficient calculation unit is configured to according to austenite phase in the strip and ferritic phase described in respectively proportion calculates
The resistance of deformation coefficient of strip, and calculate according to the resistance of deformation coefficient resistance of deformation of the strip；
Parameter set unit is configured to that rolling parameter is arranged according to the resistance of deformation of the strip.
6. device according to claim 5, which is characterized in that the ratio computing unit includes：
Temperature proportional module is configured to the difference of finishing temperature and actual temperature obtaining temperature than upper phase transformation conversion temperature section
Spend proportionality coefficient；
Coefficient ratio module is configured to calculate austenite phase and ferritic phase in the strip according to the temperature proportional coefficient
Respective proportion.
7. device according to claim 5, which is characterized in that the coefficient calculation unit includes：
Coefficients calculation block is configured to become austenite deformation resistance coefficient and the sum of products ferrite of austenite proportion
Shape resistance coefficient is added with ferrite proportion, obtains the resistance of deformation coefficient of the strip.
8. device according to claim 5, which is characterized in that described device further includes：
Temperature rises computing unit, is configured to read band described in the power calculation of the heating furnace in the rigid production line of no headband
Steel Wen Sheng.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810573666.4A CN108723099A (en) | 2018-06-06 | 2018-06-06 | A kind of ferrite rolling method and device based on output strip line without a head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810573666.4A CN108723099A (en) | 2018-06-06 | 2018-06-06 | A kind of ferrite rolling method and device based on output strip line without a head |
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| CN108723099A true CN108723099A (en) | 2018-11-02 |
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| CN201810573666.4A Pending CN108723099A (en) | 2018-06-06 | 2018-06-06 | A kind of ferrite rolling method and device based on output strip line without a head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023021079A1 (en) * | 2021-08-18 | 2023-02-23 | Sms Group Gmbh | Transport device, method for operating a transport device, and use of a transport device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05337506A (en) * | 1992-06-11 | 1993-12-21 | Kawasaki Steel Corp | Hot rolling method |
| CN102641902A (en) * | 2011-02-18 | 2012-08-22 | 宝山钢铁股份有限公司 | Rolling pressure setting method of precision rolling phase-change strip steel |
| CN106734233A (en) * | 2016-11-22 | 2017-05-31 | 首钢京唐钢铁联合有限责任公司 | Finish rolling control method and device for ferrite rolling process |
| CN107597844A (en) * | 2017-10-16 | 2018-01-19 | 北京科技大学 | The ferrite rolling method and apparatus that endless casting rolling deep-draw is rolled up with humble carbon steel |
-
2018
- 2018-06-06 CN CN201810573666.4A patent/CN108723099A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05337506A (en) * | 1992-06-11 | 1993-12-21 | Kawasaki Steel Corp | Hot rolling method |
| CN102641902A (en) * | 2011-02-18 | 2012-08-22 | 宝山钢铁股份有限公司 | Rolling pressure setting method of precision rolling phase-change strip steel |
| CN106734233A (en) * | 2016-11-22 | 2017-05-31 | 首钢京唐钢铁联合有限责任公司 | Finish rolling control method and device for ferrite rolling process |
| CN107597844A (en) * | 2017-10-16 | 2018-01-19 | 北京科技大学 | The ferrite rolling method and apparatus that endless casting rolling deep-draw is rolled up with humble carbon steel |
Non-Patent Citations (2)
| Title |
|---|
| 刘战英等: "IF钢铁素体区轧制的变形抗力模型", 《塑性工程学报》 * |
| 祁旋等: "铁素体轧制工艺技术及发展", 《安徽冶金》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023021079A1 (en) * | 2021-08-18 | 2023-02-23 | Sms Group Gmbh | Transport device, method for operating a transport device, and use of a transport device |
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Application publication date: 20181102 |
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