CN201950071U - High precision automatic thickness control device based on thickness meter segment monitoring - Google Patents
High precision automatic thickness control device based on thickness meter segment monitoring Download PDFInfo
- Publication number
- CN201950071U CN201950071U CN2010206660021U CN201020666002U CN201950071U CN 201950071 U CN201950071 U CN 201950071U CN 2010206660021 U CN2010206660021 U CN 2010206660021U CN 201020666002 U CN201020666002 U CN 201020666002U CN 201950071 U CN201950071 U CN 201950071U
- Authority
- CN
- China
- Prior art keywords
- thickness
- value
- roller
- steel plate
- calibrator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a high precision automatic thickness control device based on thickness meter segment monitoring, comprising a four-roller reversible rolling mill roller system, the roller system comprises an upper supporting roller, an upper working roller, a lower working roller, and a lower supporting roller connected; a rolling steel plate can be placed in the gap between the upper working roller and the lower working roller; the automatic thickness control device also comprises a rolling mill use pressing system adjusting a roller seam position value between the upper working roller and the lower working roller, a displacement sensor measuring actual value of the roller seam, a rolling mill pressing controller adjusting the opening degree of a servo valve according to difference value of a roller seam positioning set value and the actual value, a thickness meter disposed at the outlet side of the rolling mill and measuring thicknesses of passing steel plates, and a roll-force measuring element measuring a current roll-force actual value. The high precision automatic thickness control device, via the mode of the thickness meter segment monitoring, is advantaged by accurately measuring error of thickness calculation model, realizing high-precision calculation of rolled stock outlet thickness, and improving thickness control precision.
Description
Technical field
The utility model relates to a kind of rolling automatic thickness control of high accuracy sheet material (AGC) equipment that is used for reversible hot milling roll, particularly relates to a kind of High Precision Automatic THICKNESS CONTROL equipment based on calibrator segmentation monitoring.
Background technology
In order to improve vertical tolerance of steel plate, improve the product thickness hit rate, the milling train automatic thickness control system has been carried out a large amount of research both at home and abroad.Present domestic cut deal hot rolling mill has generally used pachometer type AGC system, and the main feature of pachometer type AGC system is to use mill spring equation calculating to roll back steel plate thickness as actual measurement thickness, depresses regulated quantity with setting thickness with the difference calculating of calculated thickness.
Initial pachometer type AGC is as root thickness with a certain thickness, then in the operation of rolling, increment signal with detected outlet roll gap and draught pressure is controlled thickness, the thickness of steel plate all is controlled within this root thickness scope, thereby reaches the thickness control system of control with plate difference purpose.This initial AGC mode convergence rate is very slow, Japanese M.Saito carried out high accuracy and rolled during plate thickness control uses on fan island plate mill afterwards, adopted a kind of AGC system of absolute value mode, absolute thickness with spring equation forecast steel plate, this system disposition absolute thickness of slab regulate and high-speed hydraulic is depressed, realized the high-precision plate thickness control of rolling, this method hot rolling mill has at home obtained a large amount of application, and its thickness prediction computational methods can be summarized as:
In the formula, the h-rolled piece calculates exit thickness; S
0-mill roll-gap value; p
a-roll-force actual value; p
0Setup pressure value when-zero roll gap is adjusted; K
m-mill stiffness value; The A-error constant is made up of roll wear, thermal expansion or other error of calculation etc.
Because various errors are difficult to accurate estimation, the setting rigidity in real mill stiffness coefficient and the control system can not be in full accord, so between thickness that calculates and the actual thickness that shuts out bigger error is arranged.Method Japanese and domestic some factory all is to revise constant A, but can not improve the thickness hit rate well.Because product to a description, parameter between each passage is also unequal, for example each passage roll-force just differs greatly, and it is also quite big with the fluctuation of the roll-force in a time, this has just determined error A can not be constant, and it is just undesirable to use the method for revising constant A to solve its result of problem.This is the difficult point of absolute value pachometer type AGC system, has restricted the thickness and precision of this mode.
The utility model content
In view of this, the technical problems to be solved in the utility model is to provide a kind of High Precision Automatic THICKNESS CONTROL equipment based on calibrator segmentation monitoring, the mode that adopts the calibrator segmentation to monitor accurately measures the error of THICKNESS CALCULATION model, realize the high precision computation of stocking exit thickness, improve thickness control accuracy.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of High Precision Automatic THICKNESS CONTROL equipment based on calibrator segmentation monitoring, it is characterized in that, comprise four roll reversing roller rollers system, this roller system comprises that upper support roller, top working roll, bottom working roll and lower support roller link to each other; Rolling steel plate can be placed in the gap of described top working roll and bottom working roll; This automatic thickness control appliance comprises that also the milling train of regulating roll gap positional value between described top working roll, bottom working roll uses press down system, measures the displacement transducer of roll gap actual value and depresses controller according to the milling train of the difference adjusting servo valve opening degree of roll gap position setting value and actual value, be provided with the calibrator of measuring by steel plate thickness at the milling train outlet side, also be provided with the measurement of rolling force element of measuring current roll-force actual value.
Wherein, described automatic thickness control appliance also comprises thickness prediction calculation element, sample mean device, absolute thickness calculation element and the AGC adjusting device of the calculating steel plate prediction exit thickness that links to each other successively by the signal of telecommunication.
Further, described sample mean device is sampling thickness and the device that calculates its mean value, it comprises first sample mean device and second sample mean device, this first sample mean device is sampled measurements thickness and the device that calculates its mean value, and second sample mean device is sampling thickness prediction and the device that calculates its mean value.
Further, described absolute thickness calculation element is for calculating the device of steel plate exit thickness absolute value, and it comprises reversed arrangement device and thickness absolute value calculation element.
Further, described AGC adjusting device is the AGC regulated quantity of passage under calculating and the device of segmentation AGC regulated quantity.
The technique effect that the utility model reaches is as follows: the High Precision Automatic THICKNESS CONTROL equipment based on calibrator segmentation monitoring of the present utility model, the factor that causes the calculated thickness error is divided into two parts to compensate respectively, a part is the factor that changes with rolling parameter, for example oil film thickness changes with draught pressure is different with mill speed, mill stiffness changes with the rolled piece width is different, this a part of changing factor can adopt various method of testing values of being compensated between the milling train trial run period, for example oil film thickness compensation and rolled piece width compensation.Another part is all to change very little milling train error between each passage, for example roll wear and thermal expansion, this part error amount uses the method for calibrator segmentation monitoring to estimate, be about to steel plate and be divided into some segments along its length, when this passage of steel plate is passed through calibrator, each segment is all distinguished error of calculation mean value, be used for the exit thickness of corrected Calculation in following passage.This method can calculate the exit thickness of stocking accurately, realize accurately compensating error value, rather than lean on the method for round-off error constant, overcome the difficult point of traditional method, improve thickness prediction precision and hit rate greatly, thereby improved production efficiency and board quality.
Description of drawings
Fig. 1 is single stand four-roller reversible hot milling roll and main detecting element schematic diagram.
Fig. 2 is the schematic diagram of the utility model automatic thickness control method.
Among the figure: the 1-milling train is depressed controller; The 2-servo valve; The 3-hydraulic cylinder; The 4-displacement transducer; 5-upper support roller; The 6-top working roll; The 7-bottom working roll; 8-lower support roller; The 9-steel plate; The 10-calibrator; 11-measurement of rolling force element; First sample mean device of 12-; 13-thickness prediction calculation element; Second sample mean device of 14-; 15-reversed arrangement device; 16-thickness absolute value calculation element; The 17-AGC adjusting device.
The specific embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
As shown in Figure 1, the roller of four roll reversing rollers system is made up of upper support roller 5, top working roll 6, bottom working roll 7 and lower support roller 8, and rolled plate 9 back and forth, and steel plate 9 is along a complete rolling passage that once is called of direction.Milling train uses press down system to regulate roll gap positional value between the upper working rolls and lower working rolls, can use all-hydraulic depress or electric hydaulic is united and depressed, and also can adopt the mode of pressing, and uses hydraulic cylinder 3 as press down system among Fig. 1, the promptly all-hydraulic mode of depressing.The roll gap actual value is measured by displacement transducer 4, and milling train is depressed the opening degree of controller 1 according to the difference size adjustment servo valve 2 between roll gap position setting value and the roll gap actual value, and then the displacement of control hydraulic cylinder for reduction system 3.At the milling train outlet side thickness that a calibrator 10 is measured by steel plate is installed, measurement of rolling force element 11 also is housed, be used for measuring current roll-force actual value.Wherein calibrator can accurately measure the actual (real) thickness of steel plate, but because there is a segment distance its installation site apart from milling train, its measured value can't be used for real-time FEEDBACK CONTROL, but can be used for realizing high-precision monitoring.
1. 1 kinds of automatic thickness control methods of embodiment based on calibrator segmentation monitoring:
Referring to Fig. 1 and Fig. 2, this compensation method may further comprise the steps:
1, obtains thickness prediction value h
pAnd ask for its mean value
In the operation of rolling, begin to throw steel from stinging steel up to this passage, calculate thickness prediction, sampling thickness prediction and averaged are specially:
(1) stings steel up to the process of throwing steel from this passage, calculate the thickness prediction value.
Because reversable mill is back and forth rolling, be equipped with under the situation of a calibrator, only just can measure the steel plate one-tenth-value thickness 1/10 at odd-numbered pass or even-numbered pass.Can record the passage of steel plate thickness at calibrator, sting steel from milling train and begin to throw steel, use thickness prediction calculation element 13 to calculate the prediction outlet thickness h of steel plate with following formula up to milling train
p:
In the formula, h
p-prediction outlet one-tenth-value thickness 1/10; S
0-roll gap actual value; p
a-roll-force actual value; p
0Setup pressure value when-zero roll gap is adjusted; K
m-mill stiffness value; T
Of-oil film thickness offset obtains by the oil film thickness test during milling train trial run; C
b-rolled piece width compensation value obtains by rolling the test of plate method during the milling train trial run;
(2) sampling prediction outlet one-tenth-value thickness 1/10, and calculate its mean value.
Sting steel in the process of throwing steel in this passage, use second sample mean device 14, regularly prediction outlet one-tenth-value thickness 1/10 is sampled, the sampling time is got a less value, generally can get 1ms or 4ms, calculate this passage steel plate consensus forecast exit thickness value then
(3) sampling prediction outlet one-tenth-value thickness 1/10 and calculate mean value in each segmentation.
According to the certain-length segmentation, is one section with 1m with the steel plate total length for example, and the remainder of last not enough 1m is one section.Sting steel in the process of throwing steel in this passage, still use second sample mean device 14, sampling prediction outlet one-tenth-value thickness 1/10 also calculates mean value in each segmentation
1≤i≤n
1n
1Be the steel plate segments.
2, obtain this passage calibrator and measure average thickness value
Enter calibrator to beginning oppositely to leave in the time of calibrator at this passage steel plate, the sampling calibrator is measured thickness and is asked for its mean value, is specially:
(1) this passage steel plate enters calibrator to oppositely leaving in the time of calibrator, uses first sample mean device 12, and the sampling calibrator is measured thickness h
aAnd ask for its mean value
(2) will enter the steel plate length segmentation of calibrator, segmentation method is one section with 1m for example with step 1, and last not enough 1m's is one section.Still use first sample mean device 12, the sampling calibrator is measured thickness and is calculated measurement thickness average value in each segmentation
1≤i≤n
2n
2For having passed through the steel plate length segments of calibrator.Owing to may not be that the steel plate total length can both enter calibrator and measures, therefore the segments n here
2≤ n
1
3, obtain down passage exit thickness absolute value h
C, n, h
C, n(i):
Calculate this passage AME and segmentation AME, passage thickness prediction value is tried to achieve down passage exit thickness absolute value about adding, and concrete grammar is:
(1) adopts following computing formula to calculate, obtain the thickness prediction AME
With the AME in each segmentation
Wherein: n
2For having passed through the steel plate length segments of calibrator;
(2), try to achieve down the segmented mode of passage according to following percentage pass reduction.
For example, establishing the steel plate of this passage by calibrator has 9.8m, presses the 1m segmentation so, will be divided into 10 sections, and then this passage segmented mode is: the front all is that 1m is long for 9 sections, and final stage 0.8m is long; Setting the passage percentage elongation is 1.2, mean that this passage length is that the steel plate of 1m is extended for 1.2m through following passage after rolling, descending the section length of passage steel plate like this is 1.2m just, because reversable mill is for rolling back and forth, so the final stage of this passage becomes first section of following passage, the rolling 11.76m that just becomes of passage under the steel plate process of this passage 9.8m, then descend the segmented mode of passage to be: with the 1.2m length segmentation, still be divided into 10 sections, wherein first section is 0.96m, and the back all is 1.2m for 9 sections.
(3) with segmentation AME ordered series of numbers
Reversed arrangement
Because reversable mill is back and forth rolling, the steel plate head of this passage is following passage steel plate afterbody, and this passage steel plate afterbody is the head of following a time steel plate, therefore, the segmentation AME of this passage to be added to down on the passage steel plate, just must be with the segmentation AME
Reversed arrangement uses reversed arrangement device 15 to obtain here
(4) the passage thickness prediction is tried to achieve down passage exit thickness absolute value under the basis, used thickness absolute value calculation element 16, and computational methods are:
In the formula, h
C, nBe following passage steel plate exit thickness absolute value; h
C, n(i) be following passage segmentation exit thickness absolute value; h
P, nBe following passage thickness prediction, computational methods are with this passage; h
P, n(i) be the thickness prediction value in each segmentation of passage under the steel plate.
For example, establishing the steel plate length of this passage by calibrator is 9.8m, and the steel plate length by calibrator is not 2.1m, percentage elongation 1.2, the steel plate length that then descends passage can carry out segmented compensation is 11.76m, and steel plate length that can not segmented compensation is 2.52m, segments n
2=10.When following passage was rolling, the exit thickness absolute value of front 2.52m was pressed h
C, nCalculate; Began to compensate first section after rolling 2.52m in milling train, first segment length is 0.96m, the AME ordered series of numbers after at this moment will reversing
First be added to current thickness prediction value h
P, n(i) get on, 9 segment length of back are 1.2m, corresponding AME is added to the thickness prediction value in turn gets on, and so just can obtain down the exit thickness absolute value on the passage steel plate total length.
4, obtain AGC regulated quantity Δ S, Δ S (i) on the steel plate total length:
AGC regulated quantity under calculating on the passage steel plate total length, concrete grammar is:
(1) according to the AGC regulated quantity Δ S (i) in passage AGC regulated quantity Δ S under passage exit thickness absolute value calculates with the difference of exit thickness setting value down and each segmentation, use AGC adjusting device 17, computing formula is:
In the formula, h
SBe following passage exit thickness setting value; K
mBe the mill stiffness coefficient; C
mBe the steel plate plastic coefficient.
(2) select Δ S or Δ S (i) to carry out the AGC adjusting to depressing controller.
For example,, when then descending passage rolling, select that at the preceding 2.52m of steel plate the Δ S that calculates is delivered to hydraulic pressure and depress controller, and the 11.76m in the back just delivers to Δ S (i) hydraulic pressure of milling train and depresses controller according to the situation in the previous example.
Through above-mentioned steps, finally realized high accuracy pachometer type automatic thickness control based on calibrator segmentation monitoring.If also have follow-up passage, then carry out said process again.
The automatic thickness control appliance that embodiment 2. monitors based on the calibrator segmentation:
The structure of this automatic thickness control device comprises the thickness prediction calculation element 13, sample mean device, absolute thickness calculation element and the AGC adjusting device 17 that link to each other successively with the signal of telecommunication as shown in Figure 2.
Described thickness prediction calculation element 13 is the devices that are used for calculating steel plate prediction exit thickness, and this device realizes that by programming on programmable logic controller (PLC) this device utilizes following formula to calculate:
In the formula, h
p-prediction outlet one-tenth-value thickness 1/10; S
0-roll gap actual value; p
a-roll-force actual value; p
0Setup pressure value when-zero roll gap is adjusted; K
m-mill stiffness value; T
Of-oil film thickness offset; C
h-rolled piece width compensation value;
Described sample mean device is two sampling thicknesses and the device that calculates its mean value, wherein first sample mean device 12 is sampled measurements thickness and the device that calculates its mean value, and second sample mean device 14 is sampling thickness prediction and the device that calculates its mean value.
Described absolute thickness calculation element comprises reversed arrangement device 15 and thickness absolute value calculation element 16 for calculating the device of steel plate exit thickness absolute value, and wherein reversed arrangement device 15 is to be used for reversed arrangement segmentation AME
Ordered series of numbers obtains
Device; Thickness absolute value calculation element 16 is for calculating h
cAnd h
c(i) device, this device utilize following formula to calculate:
In the Δ formula, h
C, nBe following passage steel plate exit thickness absolute value; h
P, nBe following passage thickness prediction value;
Be this passage thickness prediction AME; h
C, n(i) be following passage steel plate segmentation exit thickness absolute value;
Be the segmentation of this passage after reversed arrangement thickness prediction AME;
Described AGC adjusting device 17 is the devices that are used to calculate Δ S and Δ S (i), and this device utilizes following formula to calculate:
In the formula, Δ S is following passage AGC regulated quantity; h
SBe passage exit thickness setting value under the steel plate; Δ S (i) is following passage segmentation AGC regulated quantity, n
2For having passed through the steel plate length segments of calibrator;
The automatic thickness control device that present embodiment provides based on calibrator segmentation monitoring, its course of work is:
At first can detect the passage of steel plate thickness at calibrator, stinging steel from milling train begins to throw steel up to this passage, use thickness prediction calculation element 13 to calculate the outlet thickness prediction of steel plates, use 14 samplings of second sample mean device simultaneously and ask for thickness prediction mean value in this passage thickness prediction mean value and the segmentation.
Enter calibrator from this passage steel plate and begin to begin oppositely to leave calibrator, use 12 samplings of first sample mean device and ask for this passage and measure measurement thickness average value in thickness average value and the segmentation up to steel plate.
With this passage thickness prediction mean value with measure thickness average value and compare and obtain this passage thickness prediction AME; Equally this passage segmentation thickness prediction mean value and areal survey thickness average value are compared and obtain this passage segmentation thickness prediction AME.
Stinging steel from following passage milling train begins to throw steel up to milling train, still use thickness prediction calculation element 13 to calculate the outlet thickness prediction of passage steel plate down, use absolute thickness calculation element 16, following passage outlet thickness prediction is added that this passage thickness prediction AME promptly obtains down the exit thickness absolute value of passage; Use reversed arrangement device 15 with the segmentation thickness prediction AME reversed arrangement that obtains, use absolute thickness calculation element 16 then equally, following passage segmentation thickness prediction is added that the thickness prediction AME of corresponding segment promptly obtains down passage segmentation exit thickness absolute value.
Use AGC adjusting device 17 at last, calculate down passage AGC regulated quantity and segmentation AGC regulated quantity according to the difference of descending passage exit thickness absolute value and segmentation exit thickness absolute value to set exit thickness with following passage, selecting corresponding AGC regulated quantity or segmentation AGC regulated quantity to be added to hydraulic pressure according to this passage steel plate by the length of calibrator then depresses controller and gets on, realize the High Precision Automatic THICKNESS CONTROL to steel plate.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.
Claims (5)
1. the High Precision Automatic THICKNESS CONTROL equipment based on calibrator segmentation monitoring is characterized in that, comprises four roll reversing roller rollers system, and this roller system comprises that upper support roller, top working roll, bottom working roll and lower support roller link to each other; Rolling steel plate can be placed in the gap of described top working roll and bottom working roll; This automatic thickness control appliance comprises that also the milling train of regulating roll gap positional value between described top working roll, bottom working roll uses press down system, measures the displacement transducer of roll gap actual value and depresses controller according to the milling train of the difference adjusting servo valve opening degree of roll gap position setting value and actual value, be provided with the calibrator of measuring by steel plate thickness at the milling train outlet side, also be provided with the measurement of rolling force element of measuring current roll-force actual value.
2. the High Precision Automatic THICKNESS CONTROL equipment based on calibrator segmentation monitoring according to claim 1, it is characterized in that described automatic thickness control appliance also comprises thickness prediction calculation element, sample mean device, absolute thickness calculation element and the AGC adjusting device of the calculating steel plate prediction exit thickness that links to each other successively by the signal of telecommunication.
3. the High Precision Automatic THICKNESS CONTROL equipment based on calibrator segmentation monitoring according to claim 2, it is characterized in that, described sample mean device is sampling thickness and the device that calculates its mean value, it comprises first sample mean device and second sample mean device, this first sample mean device is sampled measurements thickness and the device that calculates its mean value, and second sample mean device is sampling thickness prediction and the device that calculates its mean value.
4. the High Precision Automatic THICKNESS CONTROL equipment based on calibrator segmentation monitoring according to claim 2, it is characterized in that, described absolute thickness calculation element is for calculating the device of steel plate exit thickness absolute value, and it comprises reversed arrangement device and thickness absolute value calculation element.
5. the High Precision Automatic THICKNESS CONTROL equipment based on calibrator segmentation monitoring according to claim 2 is characterized in that, described AGC adjusting device is the AGC regulated quantity of passage under calculating and the device of segmentation AGC regulated quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206660021U CN201950071U (en) | 2010-12-17 | 2010-12-17 | High precision automatic thickness control device based on thickness meter segment monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206660021U CN201950071U (en) | 2010-12-17 | 2010-12-17 | High precision automatic thickness control device based on thickness meter segment monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201950071U true CN201950071U (en) | 2011-08-31 |
Family
ID=44494198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206660021U Expired - Lifetime CN201950071U (en) | 2010-12-17 | 2010-12-17 | High precision automatic thickness control device based on thickness meter segment monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201950071U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172637A (en) * | 2010-12-17 | 2011-09-07 | 中冶南方工程技术有限公司 | High-accuracy automatic thickness control method and equipment based on thickness gauge subsection monitoring |
| CN104384202A (en) * | 2014-12-02 | 2015-03-04 | 大连交通大学 | Oxygen-free copper strip billet continuous extrusion and rolling production line control system and control method thereof |
| CN104668291A (en) * | 2015-03-17 | 2015-06-03 | 鞍钢集团工程技术有限公司 | Screw down system of rolling machine |
| CN106881358A (en) * | 2017-03-22 | 2017-06-23 | 中冶华天工程技术有限公司 | Mill roll-gap measures control method |
| CN107913911A (en) * | 2017-12-12 | 2018-04-17 | 中冶南方工程技术有限公司 | It is a kind of to monitor feedforward compensation method and system of the thickness control to entrance tension force |
| CN108405629A (en) * | 2018-03-31 | 2018-08-17 | 扬州大学 | A kind of control method and its artificial circuit of the hot continuous rolling AGC system based on serials control |
| CN113399475A (en) * | 2021-05-31 | 2021-09-17 | 武汉钢铁有限公司 | Rolling pressure measuring method for rolling mill |
-
2010
- 2010-12-17 CN CN2010206660021U patent/CN201950071U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172637A (en) * | 2010-12-17 | 2011-09-07 | 中冶南方工程技术有限公司 | High-accuracy automatic thickness control method and equipment based on thickness gauge subsection monitoring |
| CN102172637B (en) * | 2010-12-17 | 2013-11-20 | 中冶南方工程技术有限公司 | High-accuracy automatic thickness control method and equipment based on thickness gauge subsection monitoring |
| CN104384202A (en) * | 2014-12-02 | 2015-03-04 | 大连交通大学 | Oxygen-free copper strip billet continuous extrusion and rolling production line control system and control method thereof |
| CN104668291A (en) * | 2015-03-17 | 2015-06-03 | 鞍钢集团工程技术有限公司 | Screw down system of rolling machine |
| CN106881358A (en) * | 2017-03-22 | 2017-06-23 | 中冶华天工程技术有限公司 | Mill roll-gap measures control method |
| CN107913911A (en) * | 2017-12-12 | 2018-04-17 | 中冶南方工程技术有限公司 | It is a kind of to monitor feedforward compensation method and system of the thickness control to entrance tension force |
| CN108405629A (en) * | 2018-03-31 | 2018-08-17 | 扬州大学 | A kind of control method and its artificial circuit of the hot continuous rolling AGC system based on serials control |
| CN108405629B (en) * | 2018-03-31 | 2019-11-22 | 扬州大学 | A kind of artificial circuit of the control method of the hot continuous rolling AGC system based on serials control |
| CN113399475A (en) * | 2021-05-31 | 2021-09-17 | 武汉钢铁有限公司 | Rolling pressure measuring method for rolling mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201950071U (en) | High precision automatic thickness control device based on thickness meter segment monitoring | |
| CN102172637B (en) | High-accuracy automatic thickness control method and equipment based on thickness gauge subsection monitoring | |
| CN102441576B (en) | Automatic control method for camber and wedge shape of rough rolling intermediate blank of hot rolling strip steel | |
| CN103464469B (en) | A kind of edge drop amount control method of cold rolling non-orientation silicon steel | |
| CN101607264B (en) | Periodic longitudinal variable-thickness strip and longitudinal variable-thickness plate and preparation method thereof | |
| CN101934292B (en) | Automatic control method for camber and wedge of hot rolled strip roughing mill | |
| CN101602065B (en) | Micro-tracking method and system of rolled pieces in the process of rolling periodic variable-thickness strips | |
| CN104324948B (en) | A kind of rougher of hot strip mill process rolled piece width control method | |
| CN103286142B (en) | Dynamical roll gap compensation method during a kind of cold continuous rolling dynamic variable specification | |
| CN101633003B (en) | Thickness controlling method and control system in periodicity thickness changing strip rolling process | |
| CN103464471B (en) | Automatic gauge control (AGC) self-adaptive control method for hot rolling mill | |
| CN101618401B (en) | High precision strip rolling thickness control method based on feedback signals by thickness gauge | |
| CN103170508B (en) | Method for controlling width of hot rolling strip steel | |
| CN110508627B (en) | Comprehensive test platform and test method for regulating and controlling capability of electromagnetic regulating and controlling roller | |
| CN106984651B (en) | A kind of on-line control system improving rolled piece thickness control accuracy | |
| CN105195524A (en) | Plate and strip thickness compensation control method in speeding up or down rolling process during cold rolling | |
| CN101134207A (en) | Processing method of the hot rolling arrived material convexity in the computing of cold rolled sheet shape initialization | |
| CN104209339A (en) | Method of using rough rolling inverse-pass vertical roll gap measurement for conducting plate blank width control | |
| CN102039316B (en) | Zero-point calibration method for hot continuous rolling machine frame | |
| CN103934278A (en) | Hot-rolling and finish-rolling strip steel thickness control method | |
| CN105251778A (en) | Feedback control method for edge drop of taper work roll shifting mill (T-WRS) | |
| CN109821909A (en) | A kind of control method of Wide and Thick Slab thickness of two sides deviation | |
| CN101168171A (en) | Method for controlling negative deviation of steel bar with rib | |
| CN112474820A (en) | Rolling mill device for roll shape design and method thereof | |
| CN102581024B (en) | Control method for full-length fluctuation of steel rail height |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110831 Effective date of abandoning: 20131120 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110831 Effective date of abandoning: 20131120 |
|
| RGAV | Abandon patent right to avoid regrant |