CN110170534A - The control method of the automatic roll shifting of rolling-mill middle roller - Google Patents
The control method of the automatic roll shifting of rolling-mill middle roller Download PDFInfo
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- CN110170534A CN110170534A CN201910402640.8A CN201910402640A CN110170534A CN 110170534 A CN110170534 A CN 110170534A CN 201910402640 A CN201910402640 A CN 201910402640A CN 110170534 A CN110170534 A CN 110170534A
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- rack
- roll shifting
- calender rolls
- intermediate calender
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
-
- 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
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
-
- 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
- B21B37/48—Tension control; Compression control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The invention discloses a kind of control methods of the automatic roll shifting of rolling-mill middle roller, are related to cold-rolled strip technical field.Its implementation is: 1) under normal production status, meet online roll shifting condition, 2) determine intermediate roll shifting play position, 3) and roll shifting position is controlled.The present invention can solve the prior art because bad to the speed control of rack, position to the position of roll shifting inaccurate, to prevent milling train from on-line tuning, cause the intermediate roll shifting rate that comes into operation not high, constrain the problem of effect of intermediate roll shifting function plays.
Description
Technical field
The present invention relates to cold-rolled strip technical field, the control method of especially a kind of automatic roll shifting of rolling-mill middle roller.
Background technique
At present mostly Metallurgical Enterprise milling train in the first rack and the second rack, mostly by support roller, intermediate calender rolls and
Working roll is constituted, and the two racks belong to UCM milling train, have the function of intermediate roll shifting, and mill rolling force is to pass through effect
It is provided in the hydraulic cylinder of roll bearings at both ends, because rolled piece width is less than roll width, easily because cantilever principle generates deflection deformation,
Width difference is more obvious more greatly, therefore side wave is easily led to the problem of in the operation of rolling.Cantilever portion can be eliminated by intermediate roll shifting
Domain makes milling train be in unlimited rigidity state, eliminates because of deflection deformation bring plate shape problem.Milling train is to realize that continuous rolling can incite somebody to action
The tail portion of current rolling coil of strip is connected by laser welder using welding manner with the head that next coil is rolled up, and is weldingly connected
Part is known as weld seam.Width is had in the normally production operation of rolling and becomes specification, and current width of steel coil compares next width of steel coil
Width is that width narrows specification, otherwise it is the narrow specification that broadens that it is narrow, which to compare next width of steel coil, for current width of steel coil, in each width
Change specification is crossed to be needed to be adjusted with intermediate roll shifting position.But present milling train cannot be accomplished precisely due to the speed to rack
Control, the position of roll shifting cannot accurately be positioned, so will appear deviation when triggering automatic roll shifting, be easy to cause equipment
Damage, therefore the roll shifting function of present milling train needs brought offline to adjust, because milling train needs continuous production, so intermediate roll shifting
The rate that comes into operation it is not high, thus constrain intermediate roll shifting function effect play.
Summary of the invention
The object of the present invention is to provide a kind of control methods of the automatic roll shifting of rolling-mill middle roller, it can solve the prior art
Because the speed control to rack is bad, the position of roll shifting is positioned and is not allowed, to prevent milling train from on-line tuning, causes centre
The roll shifting rate that comes into operation is not high, constrains the problem of effect of intermediate roll shifting function plays.
To solve the above-mentioned problems, the technical solution adopted by the present invention is that: the control of this automatic roll shifting of rolling-mill middle roller
Method realizes that the system includes milling train master cpu, and the master cpu connects respectively using the automatic roll shifting system of rolling-mill middle roller
Receive intermediate calender rolls displacement sensor in the first rack, the displacement signal of intermediate calender rolls displacement sensor and the first rack master under the first rack
The velocity information of motor encoder, the master cpu also receive intermediate calender rolls displacement sensor in the second rack, the second rack respectively
The velocity information of the displacement signal of lower intermediate calender rolls displacement sensor and the second rack mair motor encoder, the master cpu according to
The velocity information and institute's displacement signal pass through intermediate roll shifting servo valve in the first rack, intermediate calender rolls under the first rack respectively
Intermediate roll shifting servo valve removes the first machine of control under intermediate roll shifting servo valve and the second rack on roll shifting servo valve, the second rack
Frame intermediate roll shifting and the second rack intermediate roll shifting position are given；The master cpu is also connect with master operating station, the main behaviour
Make platform equipped with scram button, computer and the human-computer interaction unit connecting with the computer；Cream is equipped in each rack
Liquid spray equipment；Its implementation is: 1) under normal production status, meeting online roll shifting condition, the online roll shifting condition
Are as follows: a milling train is under rolling conditions；B the first rack mair motor speed is 80 revs/min, and the second rack mair motor speed is small
In 200 revs/min；C roll shifting cannot raise speed when not completing, and mill speed is no more than 240 revs/min；The spray of lotion described in d milling train
Device is opened；E roll shifting urgency button is not pressed；The alarm of f fault-free；2) it determines intermediate roll shifting play position, calculates roll shifting position
Preset value, roll shifting position preset value are calculated according to following formula:
SP=(WR-WS-β)/2-δ
In formula: WRFor intermediate calender rolls barrel length, WSFor strip finished width, β is width compensation value, according to circle shear whether trimming
Setting, δ are intermediate calender rolls chamfering length, SPFor roll shifting position preset value；3) roll shifting position control, the master cpu is according to
Displacement signal and the velocity information determine in first rack intermediate calender rolls under intermediate calender rolls, the first rack, in the second rack in
Between under roller and the second rack intermediate calender rolls position, and pass through intermediate roll shifting servo valve, the first rack in first rack
Intermediate roll shifting servo valve is distinguished under intermediate roll shifting servo valve and the second rack on lower intermediate roll shifting servo valve, the second rack
To intermediate calender rolls under intermediate calender rolls in intermediate calender rolls under intermediate calender rolls, the first rack in first rack, the second rack and the second rack
Carry out roll shifting position control.
In above-mentioned technical proposal, during more specifically scheme may also is that the master cpu is also connected in the first rack
Between intermediate calender rolls pressure sensor under roll-in force snesor, the first rack, intermediate calender rolls pressure sensor and the second machine in the second rack
Intermediate calender rolls pressure sensor under frame.
Further: the master cpu is received in first rack respectively under intermediate calender rolls pressure sensor, the first rack
On intermediate calender rolls pressure sensor, the second rack under intermediate calender rolls pressure sensor and the second rack intermediate calender rolls pressure sensor pressure
Force signal is to carry out pressure protection to roll shifting process, and the master cpu detection pressure value reaches stopping and protects during roll shifting
After protecting setting value, control roll stops roll shifting and makes alarm in the master operating station, when the given position and reality of the roll
The calibration of border position versus, when differing 5 millimeters, stops the play of the roll and makes alarm in the master operating station.
Further, being equipped with roll shifting on the master cpu acts overtime protection program, roll shifting is rolled in progress roll shifting when described
When be more than the preset time after roll shifting it is still not operating, then stop the roll shifting position control and make report in the master operating station
Alert, the preset time is 5 seconds.
Further, the velocity information of the first rack mair motor encoder is less than 80 revs/min；Second rack
The velocity information of mair motor encoder is less than 200 revs/min.
Further, on-line automatic roll shifting functional select switch is equipped in the master operating station, for choosing whether investment certainly
Dynamic roll shifting is divided into two kinds of situations when putting into the automatic roll shifting, and one is strip widths to become wide bandwidth from narrow bandwidth, separately
One kind becoming narrow bandwidth from wide bandwidth for width of steel band, and play starting point is the weld seam on strip when becoming wide bandwidth from narrow bandwidth
Into rack, needs to carry out play when becoming narrow bandwidth from wide bandwidth in advance and guarantee to complete intermediate calender rolls before narrowband reaches the first rack
Play；Specification narrows from the width automatic roll shifting trigger condition are as follows: under the conditions of A meets the online roll shifting, the automatic roll shifting function of B is thrown
Enter, C play starting point is that weld seam has gone out the second rack；Specification is by the narrow automatic roll shifting trigger condition that broadens are as follows: meets described online
Under the conditions of roll shifting, automatic roll shifting function investment, play starting point is that the distance of the first rack of welding seam distance is L, and L is as follows
It determines:
L is the distance of the first rack of welding seam distance, V in formula5For the second gantry speed, Vs is setting speed, and Sp1, Sp2 are 2 times
Roll shifting position calculated value, Vp are roll shifting channeling move speed, and V1 is the first gantry speed, and a is milling train acceleration.
By adopting the above-described technical solution, compared with prior art, the present invention having the beneficial effect that due to this hair
It is bright to be equipped with mair motor encoder and displacement sensor, the speed of rack can be precisely controlled by master cpu, to automatic
The position energy precise positioning of roll shifting when roll shifting, thus it is possible to realize the function of online roll shifting.
Detailed description of the invention
Fig. 1 is control system block diagram of the invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples:
The automatic roll shifting system of rolling-mill middle roller shown in FIG. 1, including milling train master cpu 18, master cpu 18 receive the first machine respectively
The displacement signal of intermediate calender rolls displacement sensor 6 and the first rack main motor are compiled under intermediate calender rolls displacement sensor 4, the first rack on frame
The velocity information of code device 5, master cpu 18 also receives intermediate calender rolls displacement sensor 14 in the second rack respectively, under the second rack in
Between roller displacement sensor 16 and the second rack mair motor encoder 15 displacement signal and velocity information, master cpu 18 is according to speed
Degree information and displacement signal pass through intermediate roll shifting servo valve 8 in the first rack, intermediate roll shifting servo under the first rack respectively
Intermediate roll shifting servo valve 11 goes the first rack of control under intermediate roll shifting servo valve 10 and the second rack on valve 9, the second rack
Intermediate roll shifting and the second rack intermediate roll shifting position are given；Master cpu 18 is also connect with master operating station 19, master operating station 19
It is equipped with scram button, computer and the human-computer interaction unit connecting with the computer；Lotion spray dress is equipped in each rack
It sets；The present invention is developed for the on-line automatic roll shifting function of mill control system, by optimizing intermediate calender rolls grinding process
Eliminate intermediate calender rolls edge step and the optimization calculating of roll shifting amount, roll shifting trigger condition, the process control of roll shifting play, the chain item of play
The program development such as part control, realize the on-line automatic control function of intermediate roll shifting.Used measure is as follows: 1) normally giving birth to
It produces under operating condition, meets online roll shifting condition, the online roll shifting condition are as follows: a milling train is under rolling conditions；B the first rack master
Motor speed is 80 revs/min, and the second rack mair motor speed is less than 200 revs/min；C roll shifting cannot raise speed when not completing,
Mill speed is no more than 240 revs/min；The lotion spray equipment of d milling train is opened；E roll shifting urgency button is not pressed；F fault-free report
It is alert；2) it determines intermediate roll shifting play position, calculates roll shifting position preset value, roll shifting position preset value is according to following formula meter
It calculates:
SP=(WR-WS-β)/2-δ
In formula: WRFor intermediate calender rolls barrel length, WSFor strip finished width, β is width compensation value, according to circle shear whether trimming
Setting, the acquisition of trimming state judge whether strip carries out trimming according to bead cutter opening degree, and specific decision logic is as follows:
Circle shear opening degree≤1270 millimeter, then be determined as trimming；Circle shear opening degree >=1300 millimeter are then determined as non-trimming；Such as
Fruit has trimming, then β=40；δ is intermediate calender rolls chamfering length, SPFor roll shifting position preset value；Each variable-value is as follows:
3) roll shifting position control, master cpu 18 determine intermediate calender rolls in the first rack, the first machine according to displacement signal and velocity information
Intermediate calender rolls under frame, in the second rack under intermediate calender rolls and the second rack intermediate calender rolls position, and pass through intermediate calender rolls in the first rack
Intermediate roll shifting servo valve 9 under roll shifting servo valve 8, the first rack, intermediate roll shifting servo valve 10 and the second machine in the second rack
Intermediate roll shifting servo valve 11 is respectively to intermediate in intermediate calender rolls under intermediate calender rolls, the first rack in the first rack, the second rack under frame
Intermediate calender rolls carry out roll shifting position control under roller and the second rack.
Master cpu 18 is also connected with intermediate calender rolls pressure sensor 3 in the first rack, intermediate calender rolls pressure sensing under the first rack
Intermediate calender rolls pressure sensor 17 under intermediate calender rolls pressure sensor 13 and the second rack on device 7, the second rack.Master cpu 18 is distinguished
Receive intermediate calender rolls pressure sensor 3 in the first rack, intermediate calender rolls pressure sensor 7 under the first rack, intermediate calender rolls in the second rack
The pressure signal of intermediate calender rolls pressure sensor 17 is under pressure sensor 13 and the second rack to carry out pressure guarantor to roll shifting process
Shield, after the detection of master cpu 18 pressure value reaches stopping protection setting value during roll shifting, control roll stops roll shifting and in master
Station 19 makes alarm, when the given position and physical location comparison calibration of roll, when differing 5 millimeters, stops altering for roll
It moves and makes alarm in master operating station 19.
It is equipped with roll shifting on master cpu 18 and acts overtime protection program, when roll shifting is more than preset when carrying out roll shifting
Between after roll shifting it is still not operating, then stop roll shifting position control and make alarm in master operating station, the preset time is 5 seconds.
The velocity information of first rack mair motor encoder 5 is less than 80 revs/min；Second rack mair motor encoder 15
Velocity information be less than 200 revs/min.
It is equipped with on-line automatic roll shifting functional select switch in master operating station 19, puts into automatic roll shifting for choosing whether,
When putting into automatic roll shifting, it is divided into two kinds of situations, one is strip widths to become wide bandwidth from narrow bandwidth, and another kind is width of steel band
Narrow bandwidth is become from wide bandwidth, play starting point is that the weld seam on strip enters rack when becoming wide bandwidth from narrow bandwidth, by width
Bandwidth becomes needing to carry out the play that play guarantees completion intermediate calender rolls before the first rack 1 of narrowband arrival when narrow bandwidth in advance；Specification
Narrow from the width automatic roll shifting trigger condition are as follows: under the conditions of A meets online roll shifting, the automatic roll shifting function investment of B, and C play starting point
The second rack 2 is gone out for weld seam；Specification is by the narrow automatic roll shifting trigger condition that broadens are as follows: under the conditions of meeting online roll shifting, alters automatically
Roller function investment, play starting point is that the distance of the first rack of welding seam distance 1 is L, and L is determined as follows:
L is the distance of the first rack of welding seam distance 1, V in formula5For the second gantry speed, Vs is setting speed, and Sp1, Sp2 are 2 times
Roll shifting position calculated value, Vp are roll shifting channeling move speed, and V1 is 1 speed of the first rack, and a is milling train acceleration.
Roll shifting of the invention uses constant speed, and velocity amplitude is 2 mm/seconds.In milling train the first rack 1 and the second rack
2 motors installation motor encoder is for detecting speed, and rolling mill speed should meet following values: the speed < of the first rack when roll shifting
80 ms/min；200 ms/min of the speed < of second rack.
The present invention is equipped with roll shifting movement time-out and pressure protection, surprisingly causes it that can not act when card resistance etc. occurs in roll shifting
In the case of, mechanical equipment can be always in a state of stress, and equipment seriousness is easily caused to damage.Originally there is the measure taken to this situation
Be: 1. be provided with a timeout logic, when be more than the presetting time after roll shifting it is still not operating, then stop roll shifting position control and
Alarm is made in master operating station.Time-out time can be preset as 5s.2. pressure protection is arranged, there is bar in each middle roll shift cylinder
1 pressure sensor is increased separately on chamber and rodless cavity for detecting actual hydraulic pressure cylinder cavity pressure, is detected during roll shifting
Pressure value stops after reaching stopping protection setting value and makes alarm in master operating station or compare in given position and physical location
Calibration stops play and makes alarm in master operating station when differing 5 millimeters.Upper roller takes hydraulic cylinder rodless cavity pressure, and alarming value is
60bar；Lower roll takes rod chamber pressure, alarming value 110bar.
The present invention is additionally provided with the protection of roll shifting hydraulic cylinder synchronous.Roll shifting is divided into roll shifting and lower roll shifting, and each roll shifting is by one
Two Driven by Hydraulic Cylinder of proportional valve control, can thus have two hydraulic cylinder synchronous.If there is one of them is hydraulic
Cylinder failure cannot be operating normally, power of the roll shifting at this time by a hydraulic cylinder, and will appear inclination conditions.Inclination is more
There can be damage to equipment when serious.The measure used to this situation present invention is: 1 position is equipped on each middle roll shift cylinder
Displacement sensor is equipped with hydraulic cylinder synchronous monitoring logic, when two hydraulic cylinder travel deviations are super for detecting actual hydraulic pressure cylinder position
10 millimeters are crossed, then stops roll shifting movement, and alarm in master operating station.
Claims (6)
1. a kind of control method of the automatic roll shifting of rolling-mill middle roller, it is characterised in that: use the automatic roll shifting system of rolling-mill middle roller
It realizes, which includes milling train master cpu, the master cpu receives intermediate calender rolls displacement sensor in the first rack, respectively
The displacement signal of intermediate calender rolls displacement sensor under one rack, the velocity information of the first rack mair motor encoder, the master cpu
Intermediate calender rolls displacement sensor in the second rack is also received respectively, the displacement signal of intermediate calender rolls displacement sensor and under the second rack
The velocity information of two rack main motors, the master cpu pass through first according to the velocity information and institute's displacement signal respectively
Intermediate roll shifting servo valve under intermediate roll shifting servo valve, the first rack, intermediate roll shifting servo valve in the second rack in rack
The first rack intermediate roll shifting of control and the second rack intermediate roll shifting position are removed with intermediate roll shifting servo valve under the second rack
It is given；The master cpu is also connect with master operating station, the master operating station be equipped with scram button, computer and with the computer
The human-computer interaction unit of connection；Lotion spray equipment is equipped in each rack；Its implementation is: 1) normally producing
Under operating condition, meet online roll shifting condition, the online roll shifting condition are as follows: a milling train is under rolling conditions；The main electricity of the first rack of b
Machine speed is 80 revs/min, and the second rack mair motor speed is less than 200 revs/min；C roll shifting cannot raise speed when not completing, and roll
Speed processed is no more than 240 revs/min；Lotion spray equipment described in d milling train is opened；E roll shifting urgency button is not pressed；F fault-free report
It is alert；2) it determines intermediate roll shifting play position, calculates roll shifting position preset value, roll shifting position preset value is according to following formula
It calculates:
SP=(WR-WS-β)/2-δ
In formula: WRFor intermediate calender rolls barrel length, WSFor strip finished width, β is width compensation value, according to circle shear whether trimming
Setting, δ are intermediate calender rolls chamfering length, SPFor roll shifting position preset value；3) roll shifting position control, the master cpu is according to
Displacement signal and the velocity information determine in first rack intermediate calender rolls under intermediate calender rolls, the first rack, in the second rack in
Between under roller and the second rack intermediate calender rolls position, and pass through intermediate roll shifting servo valve, the first rack in first rack
Intermediate roll shifting servo valve is distinguished under intermediate roll shifting servo valve and the second rack on lower intermediate roll shifting servo valve, the second rack
To intermediate calender rolls under intermediate calender rolls in intermediate calender rolls under intermediate calender rolls, the first rack in first rack, the second rack and the second rack
Carry out roll shifting position control.
2. the control method of the automatic roll shifting of rolling-mill middle roller according to claim 1, it is characterised in that: the master cpu
It is also connected with intermediate calender rolls pressure sensor in the first rack, intermediate calender rolls pressure sensor under the first rack, intermediate in the second rack
Intermediate calender rolls pressure sensor under roll-in force snesor and the second rack.
3. the control method of the automatic roll shifting of rolling-mill middle roller according to claim 2, it is characterised in that: the master cpu
Intermediate calender rolls pressure sensor under intermediate calender rolls pressure sensor, the first rack is received in first rack respectively, in the second rack
The pressure signal of intermediate calender rolls pressure sensor is under intermediate calender rolls pressure sensor and the second rack to carry out pressure to roll shifting process
Protection, after the master cpu detection pressure value reaches stopping protection setting value during roll shifting, control roll stops roll shifting simultaneously
Alarm is made in the human-computer interaction unit, when the given position and physical location comparison calibration of the roll, differs 5 millimeters
When, stop the play of the roll and makes alarm in the master operating station.
4. the control method of the automatic roll shifting of rolling-mill middle roller according to claim 1 or 2, it is characterised in that: in the master
Control CPU and be equipped with roll shifting and act overtime protection program, when the roll shifting when carrying out roll shifting still more than roll shifting after the preset time
It is not operating, then stop the roll shifting position control and make alarm in the master operating station, the preset time is 5 seconds.
5. the control method of the automatic roll shifting of rolling-mill middle roller according to claim 1 or 2, it is characterised in that: described first
The velocity information of rack mair motor encoder is less than 80 revs/min；The velocity information of the second rack mair motor encoder
For less than 200 revs/min.
6. the control method of the automatic roll shifting of rolling-mill middle roller according to claim 1 or 2, it is characterised in that: in the master
Station is equipped with on-line automatic roll shifting functional select switch, puts into automatic roll shifting for choosing whether, and described alters automatically putting into
When roller, it is divided into two kinds of situations, one is strip widths to become wide bandwidth from narrow bandwidth, and another kind is that width of steel band is become by wide bandwidth
For narrow bandwidth, play starting point is that the weld seam on strip enters rack when becoming wide bandwidth from narrow bandwidth, becomes narrow from wide bandwidth
Need to carry out the play that play guarantees completion intermediate calender rolls before the first rack of narrowband arrival when bandwidth in advance；Specification narrows from the width automatically
Roll shifting trigger condition are as follows: under the conditions of A meets the online roll shifting, the automatic roll shifting function investment of B, C play starting point goes out for weld seam
Second rack；Specification is by the narrow automatic roll shifting trigger condition that broadens are as follows: under the conditions of meeting the online roll shifting, automatic roll shifting function
Investment, play starting point is that the distance of the first rack of welding seam distance is L, and L is determined as follows:
L is the distance of the first rack of welding seam distance, V in formula5For the second gantry speed, Vs is setting speed, and Sp1, Sp2 alter for 2 times
Roller position calculated value, Vp are roll shifting channeling move speed, and V1 is the first gantry speed, and a is milling train acceleration.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402640.8A CN110170534B (en) | 2019-05-15 | 2019-05-15 | Control method for automatic roll shifting of intermediate roll of rolling mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402640.8A CN110170534B (en) | 2019-05-15 | 2019-05-15 | Control method for automatic roll shifting of intermediate roll of rolling mill |
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| Publication Number | Publication Date |
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| CN110170534A true CN110170534A (en) | 2019-08-27 |
| CN110170534B CN110170534B (en) | 2020-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116416774A (en) * | 2022-12-16 | 2023-07-11 | 四川大学 | On-line monitoring system and monitoring method for roll forming quality of frame girder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5297350A (en) * | 1976-02-13 | 1977-08-16 | Kawasaki Steel Co | Method of cold rolling of extremely thin steel band |
| JPS5985304A (en) * | 1982-11-08 | 1984-05-17 | Sumitomo Metal Ind Ltd | Rolling method |
| CN2719433Y (en) * | 2004-05-27 | 2005-08-24 | 一重集团大连设计研究院 | Hot strip continuous rolling mill transfer roller mechanism |
| 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 |
| CN203516260U (en) * | 2013-10-14 | 2014-04-02 | 鞍钢股份有限公司 | Precisely-rolled channeling roll jet-pipe-type servo loop control device |
| CN103909093A (en) * | 2014-04-22 | 2014-07-09 | 中冶南方工程技术有限公司 | Six-roller mill with small roller diameters and rolling control method |
-
2019
- 2019-05-15 CN CN201910402640.8A patent/CN110170534B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5297350A (en) * | 1976-02-13 | 1977-08-16 | Kawasaki Steel Co | Method of cold rolling of extremely thin steel band |
| JPS5985304A (en) * | 1982-11-08 | 1984-05-17 | Sumitomo Metal Ind Ltd | Rolling method |
| CN2719433Y (en) * | 2004-05-27 | 2005-08-24 | 一重集团大连设计研究院 | Hot strip continuous rolling mill transfer roller mechanism |
| 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 |
| CN203516260U (en) * | 2013-10-14 | 2014-04-02 | 鞍钢股份有限公司 | Precisely-rolled channeling roll jet-pipe-type servo loop control device |
| CN103909093A (en) * | 2014-04-22 | 2014-07-09 | 中冶南方工程技术有限公司 | Six-roller mill with small roller diameters and rolling control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116416774A (en) * | 2022-12-16 | 2023-07-11 | 四川大学 | On-line monitoring system and monitoring method for roll forming quality of frame girder |
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|---|---|
| CN110170534B (en) | 2020-07-03 |
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