CN107661902B - A method of quickly establishing cold-rolled process roller heat convex degree learning - Google Patents
A method of quickly establishing cold-rolled process roller heat convex degree learning Download PDFInfo
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- CN107661902B CN107661902B CN201610613238.0A CN201610613238A CN107661902B CN 107661902 B CN107661902 B CN 107661902B CN 201610613238 A CN201610613238 A CN 201610613238A CN 107661902 B CN107661902 B CN 107661902B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
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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
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
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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
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
- B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
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Abstract
A method of cold-rolled process roller heat convex degree learning quickly being established, belongs to metal rolled field.When collecting some rack roll change signal, the emulsification flow quantity for spraying beam and the cooling spray beam of roll change rack outlet to interstand cooling respectively enters warm control model, determine the quantity set point for needing to roll coil of strip, it detects and records the quantity for having rolled coil of strip, according to former emulsion flow setting value multiplied by proportionality coefficient, the emulsification flow quantity of emulsification flow quantity and outlet cooling spray beam to interstand cooling spray beam carries out corresponding reduce and adjusts, and detects whether the quantity for having rolled coil of strip recorded reaches the quantity set point for needing to roll coil of strip；If not, repeating the above steps；If so, terminating warm control model.It can realize the quick foundation of roll thermal crown after roll replacement in cold continuous rolling process, reduce the production loss in roll warm, improve the quality control level and production stability of roll warm.Production process control field suitable for cold mill complex.
Description
Technical field
The invention belongs to the rolling field of metal more particularly to a kind of control methods for being specially adapted for rolling mill for metal.
Background technique
At present in cold rolling process production process of plate, the overwhelming majority is produced using 6 roller mills or 4 roller mills, with 6 rollers
For sour tandem mill, when working roll or intermediate calender rolls rolling tonnage count to when, need to carry out the replacement of working roll or intermediate calender rolls.In phase
Answer roll replace after, since roll self-temperature is lower, the corresponding roll thermal crown of roll is not set up also, so when Strip Shape Control ability
Difference, production process are unstable.
For this situation, common practice in the industry is that about 5-7 volumes product progress low speed production is built after replacing roll at present
The vertical roll thermal crown for newly changing roll, common practices are as follows:
| Number is rolled up after roll change | The setting speed upper limit |
| First volume 2 | 50% |
| The 3-4 volumes | 70% |
| The 5-6 volumes | 85% |
| Volume 7 and after | 100% |
The purpose of such way is gradually to establish the roll thermal crown of roll, but its negative effect is also fairly obvious, a side
Face needs so many pre- hot rolling to significantly reduce the production efficiency of cold continuous rolling process.Meanwhile roll thermal crown does not set up preceding production board
After shape controlled level is substantially less than foundation, the quality condition of corresponding pre- hot rolling is also poor compared with normal volume.
There are problems for the prior art:
1, so many pre- hot rolling is needed to significantly reduce the production efficiency of cold continuous rolling process.
2, production board shape controlled level is substantially less than before roll thermal crown is not set up establish after, the quality condition of corresponding pre- hot rolling compared with
Normal volume is poor.
Application No. is CN89108636.6, the authorization day for announcing is the Chinese invention patent on the 16th of September in 1992, discloses one
Kind of the convexity controllable roll of oil pocket " have special-shaped ", the oil pocket section of roll are lens-shaped curve, the summit of curve and
Mandrel (or roller set) contact, so that mandrel backing roll set, and the volume of roll oil pocket is greatly reduced, it is rung in favor of improving rolling
Answer speed.According to width of rolling stock and rolling mill practice requirement, the oil pocket of the roll can be designed as one or more than one.This is rolled
Roller overcomes the shortcomings that VC roll, has center and margin plate shape control effect good, does not need bend roller mechanism of battery cooperation；Rolling reaction
Fastly；Mill bar quality is good；, there is significant economic benefit in the advantages that high production efficiency.
It is a kind of convexity controllable roll with special-shaped oil pocket involved in above-mentioned technical proposal, but the life of such roll
It produces and maintenance cost is high, actual use range is extremely narrow, and general cold continuous rolling is not used, and solves required for can not solving herein
Problem.
Authorization Notice No. is CN101462124B, and authorized announcement date is the Chinese invention patent on June 15th, 2011, open
A kind of strip crown for Rolling production can on-line tuning roll.Its technical solution is: at the end at topping roll body of roll both ends
A concentric toroidal cavity respectively symmetrically is respectively dug in face, and in the end face at bottom roll body of roll both ends, also each digging one is concentric respectively symmetrically
Toroidal cavity；The shape of four toroidal cavities is identical, and it is sliding that the identical annular of a shape is respectively set in each toroidal cavity
Block.The technical solution, since the roll surface spacing on upper and lower roll barrel both sides is increased, avoids 4 side of rolled piece in rolling
The phenomenon that portion is thinned substantially reduces strip crown, improves the dimensional accuracy of rolled product；Especially by axially adjustable ring
Position of the shape sliding block in toroidal cavity then can adjust the thickness of rolled piece edge, realize on-line tuning and the improvement of strip crown.
Be involved in above-mentioned technical proposal a kind of strip crown can on-line tuning roll, but the production and dimension of such roll
Protect at high cost, actual use range is extremely narrow, and general cold continuous rolling is not used, and can not solve to solve required for the application asks
Topic.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of methods for quickly establishing cold-rolled process roller heat convex degree learning.Its
The corresponding discharge for spraying the emulsion of beam by controlling and reducing each emulsion of roll change rack, realizes that roll is more in cold continuous rolling process
The quick foundation for changing rear roll thermal crown can reduce roll warm bring production loss and improve the quality of roll warm
Controlled level and production stability.
The technical scheme is that providing a kind of method for quickly establishing cold-rolled process roller heat convex degree learning, including pass through
The emulsification flow quantity for controlling and adjusting each cooling spray beam, realizes the quick raising for being replaced roller temperature, described is each cold
But spray beam includes at least the cooling spray in outlet of the interstand cooling spray beam between roll change rack and previous rack and roll change rack
Beam；It is characterized in that:
A, according to the actual operating state of equipment, for needing the rack of roll change to carry out corresponding roller replacing operation, after roll change
The roll change rack issues roll change signal；
B, control system detects or acquires each rack with the presence or absence of roll change signal, if nothing, according to normal production technology
Parameter carries out the flow control of each cooling spray beam emulsion；
C, when control system collects the roll change signal of some rack, the rack between roller frame and previous rack is exchanged
Between the flow control of cooling spray beam emulsion and the flow control of the cooling spray beam emulsion of roll change rack outlet respectively enter it is pre-
Thermal process control model；
D, warm is divided into three phases, A volumes of section, preceding B volumes of section and preceding C volumes of section before being respectively designated as；
E, control system, which is determined, needs to roll the quantity set point of coil of strip in preceding A volumes of section, preceding B volumes of section and preceding C volumes of section；
F, it into the preceding A volumes of section control model of warm, detects and records the quantity for having rolled coil of strip；
G, right according to former emulsion flow setting value multiplied by the first proportionality coefficient during the preceding A volumes of section of warm
The emulsification flow quantity of interstand cooling spray beam between roll change rack and previous rack carries out corresponding reduction adjustment；According to former cream
Change flow quantity setting value multiplied by the second proportionality coefficient, the emulsification flow quantity progress for exchanging the cooling spray beam in outlet of roller frame is corresponding
Reduce adjustment；
H, A volumes of section needs to roll the quantity setting of coil of strip before whether the quantity for having rolled coil of strip that detection is recorded reaches
Value；If not, repeating F-step；If so, A volumes of section control model before terminating；
I, it into the preceding B volumes of section control model of warm, detects and records the quantity for having rolled coil of strip；
J, right according to former emulsion flow setting value multiplied by third proportionality coefficient during the preceding B volumes of section of warm
The emulsification flow quantity of interstand cooling spray beam between roll change rack and previous rack carries out corresponding reduction adjustment；According to former cream
Change flow quantity setting value multiplied by the 4th proportionality coefficient, the emulsification flow quantity progress for exchanging the cooling spray beam in outlet of roller frame is corresponding
Reduce adjustment；
K, B volumes of section needs to roll the quantity setting of coil of strip before whether the quantity for having rolled coil of strip that detection is recorded reaches
Value；If not, repeating I step；If so, B volumes of section control model before terminating；
L, it into the preceding C volumes of section control model of warm, detects and records the quantity for having rolled coil of strip；
M, right according to former emulsion flow setting value multiplied by the 5th proportionality coefficient during the preceding C volumes of section of warm
The emulsification flow quantity of interstand cooling spray beam between roll change rack and previous rack carries out corresponding reduction adjustment；According to former cream
Change flow quantity setting value multiplied by the 6th proportionality coefficient, the emulsification flow quantity progress for exchanging the cooling spray beam in outlet of roller frame is corresponding
Reduce adjustment；
N, C volumes of section needs to roll the quantity setting of coil of strip before whether the quantity for having rolled coil of strip that detection is recorded reaches
Value；If not, repeating L step；If so, terminating warm control model；
O, the flow control of each cooling spray beam emulsion is carried out according to normal processing parameter；
The method for quickly establishing cold-rolled process roller heat convex degree learning, by adjusting roll change rack and previous rack respectively
Between interstand cooling spray beam and roll change rack the cooling spray beam in outlet emulsification flow quantity, improve each rack strip steel at entry
Temperature reduce heat loss, realize that the plate face of coil of strip to be rolled normally heats up by reducing the cooling flow of emulsion, with
The heating rate for being replaced roll is improved, the quick raising for being replaced roller temperature is realized, to realize cold-rolled process after roll change
The quick foundation of roller heat convex degree learning reduces warm bring production loss after roller replacing operation, preheats after improving roller replacing operation
The quality control level and production stability of process.
Further, it in the warm, according to former drying temperature setting value multiplied by the 7th proportionality coefficient, increases
The desired temperature of dryer, after warm control model, the desired temperature of dryer restores to normal value.
Specifically, the preceding A volumes of section, preceding B volumes of section and preceding C volumes of section need to roll the quantity set point of coil of strip, according to be rolled
The difference of the predetermined thickness after thickness and rolling before belt steel rolling processed determines.
Specifically, the quantity set point that the preceding A volumes of section needs to roll coil of strip is 1~2；The preceding B volumes of section needs to roll
The quantity set point of coil of strip is 2~4；The quantity set point that the preceding C volumes of section needs to roll coil of strip is 3~6.
Specifically, first proportionality coefficient is 40%-85%；Second proportionality coefficient is 50%-90%；Institute
The third proportionality coefficient stated is 50%-90%；4th proportionality coefficient is 60%-95；5th proportionality coefficient is
60%-95%；6th proportionality coefficient is 70%-100%.
Specifically, the 7th proportionality coefficient is 110%-130%.
Further, each proportionality coefficient, with the thickness difference before belt steel rolling to be rolled, after rolling, Cheng Zhengxiang
Guan Xing.
Further, when some rack executes roller replacing operation, to the emulsion of the cooling spray beam in the outlet of the rack itself
Flow carries out the reduction adjustment.
Further, when some rack executes roller replacing operation, to the emulsion of the interstand cooling spray beam before the rack
Flow carries out the reduction adjustment.
Further, no matter which rack executes roller replacing operation, according to former drying temperature setting value multiplied by the 7th ratio
Coefficient increases the desired temperature of dryer.
Compared with the prior art, the invention has the advantages that
It, can be in the case where guaranteeing production stability 1. by the method for quickly establishing cold-rolled process roller heat convex degree learning
Corresponding hot-rolling amount is about needed from original process to roll volume 7 to reduce to 3-4 volumes of rolling is at least only needed, significantly improve operating efficiency and
Improve the quality control level during hot-rolling.
2. since it provides the processing method of a kind of pair of emulsion process optimization and operation of rolling process optimization, so
It is not limited by specific emulsion technique and dryer process conditions, can be widely used for various tandem mills, is had wide
Market prospects.
Detailed description of the invention
Fig. 1 is the structure arrangement schematic diagram that 6 roller, 5 rack of the invention is rolled and accordingly emulsion sprays beam；
Fig. 2 is the method flow block diagram of the invention for quickly establishing cold-rolled process roller heat convex degree learning.
1 is upper backup roll in figure, and 2 be upper intermediate calender rolls, and 3 be top working roll, and 4 be bottom working roll, and 5 be lower intermediate calender rolls, under 6 are
Support roller.
1ETW~5ETW be respectively on the entrance of 1~No. 5 rack emulsion spray beam, 1EBW~for 5EBW be respectively 1~No. 5
The emulsified liquid of the entrance of rack sprays beam, and 1DT~5DT is respectively cooling spray beam, 1DB~5DB difference in the outlet of 1~No. 5 rack
For spray beam cooling under the outlet of 1~No. 5 rack, 1MT~4MT be respectively 2~No. 5 racks rack between upper cooling spray beam, 1MB~
4MB be respectively 2~No. 5 racks rack between lower cooling spray beam, 5SP be No. 5 racks outlet under cooling spray beam.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
In Fig. 1, by taking most common 6 roller, 5 machine frame rolling mill of cold continuous rolling as an example, wherein solid between upper and lower working roll
Line is the running route of coil of strip strip to be rolled, is indicated in figure with belt steel rolling center line.
Involved support roller, intermediate calender rolls and working roll are upper and lower corresponding setting in figure, therefore support roller, intermediate calender rolls
And working roll is divided into above and below；It is corresponding, entrance emulsion spray beam, the cooling spray beam in outlet and the interstand cooling of each rack
Spray beam is also to be divided into above and below.Since each equipment and emulsion spray beam involved in figure is existing equipment, therefore it has
This will not be detailed here for body structure and connection relationship.
Each corresponding emulsion spray beam deployment scenarios, which can be seen that, from figure has upper and lower emulsification in each rack entrance
Liquid sprays beam (number is i ETW and i EBW, wherein i=1,2,3,4), and main function is to provide the lubrication of the operation of rolling；Every
A rack outlet is also provided with upper and lower emulsion spray beam (number is iDT and iDB, wherein i=1,2,3,4), main function
To provide the roll cooling effect of the operation of rolling.Meanwhile between every two rack, it is also equipped with emulsion between upper and lower rack
Beam (number iMT, iMB, wherein i=1,2,3,4) is sprayed, the cooling of strip upper and lower surfaces is provided.
Speed of production takes lower value in roll warm, and the purpose is to have enough time so that in low speed production process
Roll is obtained to be fully warmed-up.And according to cold continuous rolling production technology, in low speed production process, emulsion corresponding discharge and speed
For linear approximate relationship.But such setting has ignored an important difference, i.e., roller temperature is lower when chilling roller state after roll change,
Required cooling level be different when hot-rolling state with the cooling requirement needed under mill speed after rolling a period of time, and mesh
Preceding emulsion flow set is entirely to be arranged on the basis of emulsification flow quantity when hot-rolling state.
First measure described in the technical program in control method is drawn as a result, when system acquisition is to roll change signal,
Accordingly reduced in warm for spray beam flow cooling after the rack of roll change rack (each DT, DB in Fig. 1 and
5SP sprays beam).Since roller temperature is lower at this time, refrigerating function emulsification flow quantity does not need the flow set under hot-rolling state
Value, therefore the quick raising of roller temperature can be realized by reducing cooling flow.
While cooling spray beam flow is reduced after rack, because mill speed is low under chilling roller state, roller temperature is low, plate face
Temperature is also low under more normal hot-rolling high-speed production state, and the demand of plate face cooling emulsion is also compared with normal water between rack at this time
Put down it is low, therefore can be by the corresponding reduction of interstand cooling flow (each MT, MB spray beam) in Fig. 1, Lai Shixian plate face is normal
Roll heating rate is accelerated in heating.
While emulsion technique adjustment, heat loss can also be reduced by the raising of strip steel at entry temperature, accelerated
Roll heating, tandem mills can realize that the region of fast temperature adjustment for the setting of pickling section dryer temperature, can pass through drying
The raising of incoming band steel temperature is realized in the quick adjustment of machine desired temperature.
After above-mentioned corresponding measure summarizes, it is as shown in the table that a kind of method for quickly establishing roller heat convex degree learning can be obtained:
While stating measure on the implementation, is controlled and is adjusted accordingly according to following execution principle:
1, when some specific rack roll change, the cooling spray beam parameter adjustment in the outlet of the rack itself.
2, interstand cooling spray beam parameter adjustment when some specific rack roll change, before the rack.
3, whichever rack roll change, dryer relevant parameter adjust.
In summary each technical measures and step can be obtained the present invention shown in Fig. 2 and quickly establish cold-rolled process and roll
The method flow block diagram of roller roll thermal crown.
In Fig. 2, technical solution of the present invention provides a kind of method for quickly establishing cold-rolled process roller heat convex degree learning, hair
Bright point is:
1, in normal productive process, if the not sent roll change signal of system, emulsion technique and dryer technique are not
It adjusts, control programmed logic continues to operate according to normal production technology；
If 2, sending roll change signal in production process, the quantity (referred to as volume number) of coil of strip has been rolled after roll change in A volumes of model
In enclosing, dryer temperature is automatically adjusted according to gG, the emulsion flow value (letter of the cooling spray beam of the rack outlet of roll change rack
Referred to as flow value, similarly hereinafter) be automatically adjusted according to aX, the flow of the cooling spray beam of strip between roll change rack and previous rack rack
Value is according to dD adjust automatically；
If 3, having rolled coil of strip quantity (B > A) within the scope of B volumes after roll change, dryer temperature is adjusted automatically according to gG
Whole, the flow value of the cooling spray beam of the rack outlet of roll change rack is automatically adjusted according to bY, roll change rack and previous rack machine
The flow value of the cooling spray beam of strip is according to eE adjust automatically between frame；
If 4, having rolled coil of strip quantity (C > B) within the scope of C volumes after roll change, dryer temperature is adjusted automatically according to gG
Whole, the flow value of the cooling spray beam of the rack outlet of roll change rack is automatically adjusted according to cZ, roll change rack and previous rack machine
The cooling spray beam of strip is according to fF adjust automatically between frame；
5, coil of strip quantity has been rolled after roll change greater than after C, it is horizontal that dryer Parameter reconstruction returns normal value, and controls program
Logic continues the flow value that each cooling spray beam is controlled according to normal processing parameter.
Embodiment:
It is carried out by taking certain 5 Stands Cold Tandem Mill as an example, after 1-3 rack working roll tonnage is counted in normal productive process normal
Roll change operation, according to original process, hot-rolling process is as follows:
| Number is rolled up after roll change | The setting speed upper limit |
| First volume 2 | 50% |
| 3-4 volumes | 70% |
| 5-6 volumes | 85% |
| Volume 7 and after | 100% |
After the roll crown quickly regulating method corresponding system of technical scheme comes into operation, in roll change operation
When, systems inspection to roll change signal and specific roll change rack signal execute roller heat convex degree learning quickly regulating method such as automatically at this time
Under:
By the implementation of technical scheme, following production level is realized:
| Number is rolled up after roll change | The setting speed upper limit |
| Volume 1 | 50% |
| Volume 2 | 70% |
| Volume 3 | 85% |
| Volume 4 and after | 100% |
As it can be seen that by the implementation of technical scheme, it, can be by corresponding hot-rolling in the case where guaranteeing production stability
The quantity for needing rolled band steel in the process reduces to 3-4 volumes from original process volume about 7, significantly improves operating efficiency and improve
Quality control level during hot-rolling.
Due to technical solution of the present invention, the corresponding discharge of beam emulsion is sprayed by each emulsion of control roll change rack,
The quick foundation for realizing roll thermal crown after roll replacement in cold continuous rolling process will be corresponding in the case where guaranteeing production stability
Hot-rolling amount about needs to roll volume 7 from original process and reduces to 3-4 volumes of rolling is at least only needed, and significantly improves operating efficiency, can reduce
Roll warm bring production loss and the quality control level and production stability for improving roll warm, so its
It is not limited by specific emulsion technique and dryer process conditions, can be widely used for various tandem mills, had wide
Market prospects.
It invention can be widely used in the production process control field of cold mill complex.
Claims (8)
1. a kind of method for quickly establishing cold-rolled process roller heat convex degree learning, including the cream by controlling and adjusting each cooling spray beam
Change flow quantity, realize the quick raising for being replaced roller temperature, each cooling spray beam includes at least roll change rack with before
The cooling spray beam in the outlet of interstand cooling spray beam between one rack and roll change rack；It is characterized in that:
A, according to the actual operating state of equipment, for needing the rack of roll change to carry out corresponding roller replacing operation, this is changed after roll change
Roller frame issues roll change signal；
B, control system detects or acquires each rack with the presence or absence of roll change signal, if nothing, according to normal processing parameter
Carry out the flow control of each cooling spray beam emulsion；
C, cold between the rack between exchange roller frame and previous rack when control system collects the roll change signal of some rack
But the flow control of the flow control and the cooling spray beam emulsion of roll change rack outlet of spraying beam emulsion respectively enters preheated
Process control mode；
D, warm is divided into three phases, A volumes of section, preceding B volumes of section and preceding C volumes of section before being respectively designated as；
E, control system, which is determined, needs to roll the quantity set point of coil of strip in preceding A volumes of section, preceding B volumes of section and preceding C volumes of section；
F, it into the preceding A volumes of section control model of warm, detects and records the quantity for having rolled coil of strip；
G, during the preceding A volumes of section of warm, according to former emulsion flow setting value multiplied by the first proportionality coefficient, to roll change
The emulsification flow quantity of interstand cooling spray beam between rack and previous rack carries out corresponding reduction adjustment；According to former emulsion
Multiplied by the second proportionality coefficient, the emulsification flow quantity for exchanging the cooling spray beam in outlet of roller frame is reduced flow setting value accordingly
Adjustment；
H, A volumes of section needs to roll the quantity set point of coil of strip before whether the quantity for having rolled coil of strip that detection is recorded reaches；Such as
It is no, repeat F-step；If so, A volumes of section control model before terminating；
I, it into the preceding B volumes of section control model of warm, detects and records the quantity for having rolled coil of strip；
J, during the preceding B volumes of section of warm, according to former emulsion flow setting value multiplied by third proportionality coefficient, to roll change
The emulsification flow quantity of interstand cooling spray beam between rack and previous rack carries out corresponding reduction adjustment；According to former emulsion
Multiplied by the 4th proportionality coefficient, the emulsification flow quantity for exchanging the cooling spray beam in outlet of roller frame is reduced flow setting value accordingly
Adjustment；
K, B volumes of section needs to roll the quantity set point of coil of strip before whether the quantity for having rolled coil of strip that detection is recorded reaches；Such as
It is no, repeat I step；If so, B volumes of section control model before terminating；
L, it into the preceding C volumes of section control model of warm, detects and records the quantity for having rolled coil of strip；
M, during the preceding C volumes of section of warm, according to former emulsion flow setting value multiplied by the 5th proportionality coefficient, to roll change
The emulsification flow quantity of interstand cooling spray beam between rack and previous rack carries out corresponding reduction adjustment；According to former emulsion
Multiplied by the 6th proportionality coefficient, the emulsification flow quantity for exchanging the cooling spray beam in outlet of roller frame is reduced flow setting value accordingly
Adjustment；
N, C volumes of section needs to roll the quantity set point of coil of strip before whether the quantity for having rolled coil of strip that detection is recorded reaches；Such as
It is no, repeat L step；If so, terminating warm control model；
O, the flow control of each cooling spray beam emulsion is carried out according to normal processing parameter；
The method for quickly establishing cold-rolled process roller heat convex degree learning, by being adjusted between roll change rack and previous rack respectively
Interstand cooling spray beam and roll change rack the cooling spray beam in outlet emulsification flow quantity, improve the temperature of each rack strip steel at entry
Degree realizes that the plate face of coil of strip to be rolled normally heats up by reducing the cooling flow of emulsion to reduce heat loss, to improve
It is replaced the heating rate of roll, the quick raising for being replaced roller temperature is realized, to realize cold-rolled process roll after roll change
The quick foundation of roll thermal crown reduces warm bring production loss after roller replacing operation, improves warm after roller replacing operation
Quality control level and production stability.
2. the method described in accordance with the claim 1 for quickly establishing cold-rolled process roller heat convex degree learning, it is characterized in that described pre-
In thermal process, according to former drying temperature setting value multiplied by the 7th proportionality coefficient, the desired temperature of dryer is increased, when preheated
After process control mode, the desired temperature of dryer restores to normal value.
3. the method described in accordance with the claim 1 for quickly establishing cold-rolled process roller heat convex degree learning, it is characterized in that described first A volumes
Section, preceding B volumes of section and preceding C volumes of section need to roll the quantity set point of coil of strip, according to before belt steel rolling to be rolled thickness and rolling
The difference of predetermined thickness afterwards determines.
4. the method described in accordance with the claim 3 for quickly establishing cold-rolled process roller heat convex degree learning, it is characterized in that the preceding A volumes of section
The quantity set point for needing to roll coil of strip is 1 ~ 2；The quantity set point that the preceding B volumes of section needs to roll coil of strip is 2 ~ 4；Before described
The quantity set point that C volumes of section needs to roll coil of strip is 3 ~ 6.
5. the method described in accordance with the claim 1 for quickly establishing cold-rolled process roller heat convex degree learning, it is characterized in that described first
Proportionality coefficient is 40%-85%；Second proportionality coefficient is 50%-90%；The third proportionality coefficient is 50%-90%；Institute
The 4th proportionality coefficient stated is 60%-95%；5th proportionality coefficient is 60%-95%；6th proportionality coefficient is
70%-100% 。
6. the method for quickly establishing cold-rolled process roller heat convex degree learning according to claim 2, it is characterized in that the described the 7th
Proportionality coefficient is 110%-130%.
7. according to the method described in claim 5 or 6 for quickly establishing cold-rolled process roller heat convex degree learning, it is characterized in that described is each
Thickness difference before a proportionality coefficient, with belt steel rolling to be rolled, after rolling, being positively correlated property.
8. it is according to claim 1 or 2 quickly establish cold-rolled process roller heat convex degree learning method, no matter it is characterized in which
Rack executes roller replacing operation, increases the temperature setting of dryer multiplied by the 7th proportionality coefficient according to former drying temperature setting value
Value.
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| CN112387783A (en) * | 2020-10-29 | 2021-02-23 | 厦门厦顺铝箔有限公司 | Shape control method of aluminum foil for lithium ion battery |
| CN114011884A (en) * | 2021-10-19 | 2022-02-08 | 武汉钢铁有限公司 | Plate shape control method of cold-rolled wide plate |
| CN114798755B (en) * | 2022-04-26 | 2023-02-17 | 东北大学 | Method for analyzing influence of hot crown on plate shape in cold continuous rolling process |
| CN116351868B (en) * | 2023-03-23 | 2023-09-19 | 首钢智新迁安电磁材料有限公司 | Method for improving thickness precision of strip steel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005305473A (en) * | 2004-04-19 | 2005-11-04 | Nisshin Steel Co Ltd | Circulation type rolling liquid supplying method in cold rolling |
| JP2010094704A (en) * | 2008-10-15 | 2010-04-30 | Jfe Steel Corp | Method of cold-rolling metal strip, method of manufacturing cold-rolled steel strip and cold-rolling equipment |
| CN104858241A (en) * | 2014-02-20 | 2015-08-26 | 宝山钢铁股份有限公司 | Emulsion flow comprehensive optimization method in cold continuous rolling set ultrathin strip steel rolling |
| CN105312321A (en) * | 2014-07-31 | 2016-02-10 | 宝山钢铁股份有限公司 | Method for optimizing technological lubrication system of cold continuous rolling unit |
-
2016
- 2016-07-29 CN CN201610613238.0A patent/CN107661902B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005305473A (en) * | 2004-04-19 | 2005-11-04 | Nisshin Steel Co Ltd | Circulation type rolling liquid supplying method in cold rolling |
| JP2010094704A (en) * | 2008-10-15 | 2010-04-30 | Jfe Steel Corp | Method of cold-rolling metal strip, method of manufacturing cold-rolled steel strip and cold-rolling equipment |
| CN104858241A (en) * | 2014-02-20 | 2015-08-26 | 宝山钢铁股份有限公司 | Emulsion flow comprehensive optimization method in cold continuous rolling set ultrathin strip steel rolling |
| CN105312321A (en) * | 2014-07-31 | 2016-02-10 | 宝山钢铁股份有限公司 | Method for optimizing technological lubrication system of cold continuous rolling unit |
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