CN101444797A - Control method and control device thereof - Google Patents
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- CN101444797A CN101444797A CNA2008101745586A CN200810174558A CN101444797A CN 101444797 A CN101444797 A CN 101444797A CN A2008101745586 A CNA2008101745586 A CN A2008101745586A CN 200810174558 A CN200810174558 A CN 200810174558A CN 101444797 A CN101444797 A CN 101444797A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000002826 coolant Substances 0.000 abstract description 42
- 238000005452 bending Methods 0.000 abstract description 39
- 238000005096 rolling process Methods 0.000 abstract description 28
- 239000004744 fabric Substances 0.000 description 25
- 239000000463 material Substances 0.000 description 22
- 238000010438 heat treatment Methods 0.000 description 9
- 238000003801 milling Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 208000037656 Respiratory Sounds Diseases 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000013000 roll bending Methods 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009193 crawling Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
一种轧制装置的控制方法及其控制装置，对于一个控制对象，在多个控制系统被适用的情况下，为了达成某种控制目标，变更各控制系统的控制目标值。在控制精度的容许值内变更给多个控制系统的控制目标值，通过使控制系统间发生干涉，达成和本来的控制目标不同的目的。在轧机的形状控制中，通过变更弯曲机控制和冷却剂控制的目标形状，使控制板端部的形状成为可能。保持控制精度在一定范围内的同时，达成和本来的控制目的不同的目的。
A control method of a rolling device and a control device thereof, in which a control target value of each control system is changed in order to achieve a certain control target when a plurality of control systems are applied to one control object. By changing the control target values for multiple control systems within the allowable value of the control accuracy and causing interference between the control systems, a purpose different from the original control target is achieved. In the shape control of the rolling mill, it is possible to control the shape of the end of the plate by changing the target shape of the bending machine control and the coolant control. While keeping the control accuracy within a certain range, achieve a purpose different from the original control purpose.
Description
Technical field
[0001]
The present invention relates to the control method and the control device thereof of rolling device.
Background technology
[0002]
At the cold-rolling mill that is used for producing sheet metal, implementing the shape control that control is rolled the shape (fluctuation of thin plate) of material all the time.Shape control makes the next actual signal of SHAPE DETECTION device that is arranged on the milling train outlet side, consistent with target shape such, the bending machine (bender) that utilization is arranged on the milling train (is exerted pressure at the work roll two ends, produce deflection control shape), coolant jet (or be also referred to as the location cooling, below same) (utilizing the thermal expansion control shape that is caused by rolling of work roll) carries out.Such technology is for example opened in 2004-No. 66310 communiques open the spy.
[0004]
On the one hand, there is the part of the work roll of rolling stock in the shape that is rolled material in the milling train by the surface configuration decision of work roll, and because of being rolled the heating of materials processing, thermal expansion is very big; On the other hand, there is not the part of the work roll that is rolled material owing to do not have heating, the minimizing that the thermal expansion meeting is continuous.Therefore, the radius of work roll can reduce sharp in the plate end, and the gap value between the work roll of plate end can increase sharp, by rolling and drafts that cause can diminish, produces the edge tensioning phenomenon that the elongation of plate end diminishes.
[0005]
Edge tensioning phenomenon is that the tension force of plate end is in high state, in above-mentioned operation, if there is crackle the plate end, then with the crackle for the starting point plate can cut off, very easily produce so-called edge phenomenon of rupture.
[0006]
In order to prevent the fracture of this edge, in shape control, be necessary to reduce the tension force (control panel end on prolonging direction) that is applied to the plate end, but if the target shape of change plate end, the shape of being rolled the middle body of material can be affected, and causes the decline as all product quality.
Summary of the invention
[0007]
When the objective of the invention is to keep, also seek to prevent the edge phenomenon of rupture of plate width of cloth direction end as all shape quality of plate width of cloth direction.
[0008]
For reaching one of above-mentioned purpose at least, in the present invention, control bending machine controlled quentity controlled variable and cooling agent controlled quentity controlled variable like that to become target shape, target shape comprises the inboard near the plate width of cloth direction end of the regulation that is rolled material, the measured value of plate width of cloth direction end according to the rules is so that bending machine control target shape down constitutes with different modes of setting like that of target shape under cooling agent is controlled.
[0009]
Perhaps, to become target processing like that, control the 1st controlled quentity controlled variable and the 2nd controlled quentity controlled variable, according to measured values that comprise and the processing objects different objects of target processing object, so that the 1st control desired value down constitutes with different modes of setting like that of desired value under the 2nd controls.
Specifically, one aspect of the present invention, a kind of control method of rolling device is provided, to become target shape be purpose to be rolled material, control bending machine controlled quentity controlled variable and cooling agent controlled quentity controlled variable, it is characterized in that, above-mentioned target shape comprises the inboard of the plate width of cloth direction end of the regulation that is rolled material, measured value according to the measured value of the plate width of cloth direction end that comprises afore mentioned rules, target shape in the control of above-mentioned bending machine is set at different with target shape in the above-mentioned cooling agent control, the tension force that makes the tension force of the plate width of cloth direction end of afore mentioned rules compare the plate width of cloth direction end of target shape in the above-mentioned bending machine control afore mentioned rules when identical with target shape in the above-mentioned cooling agent control reduces.
Another aspect of the present invention, a kind of control device of rolling device is provided, to be rolled the mode that material becomes target shape, control bending machine controlled quentity controlled variable and cooling agent controlled quentity controlled variable, it is characterized in that, above-mentioned target shape is the inboard that comprises the plate width of cloth direction end of the regulation that is rolled material, has set mechanism, it is according to the measured value of the measured value of the plate width of cloth direction end that comprises afore mentioned rules, with with the control of above-mentioned cooling agent in the different mode of target shape, target shape in the control of above-mentioned bending machine is set, and the tension force that makes the tension force of the plate width of cloth direction end of afore mentioned rules compare the plate width of cloth direction end of target shape in the above-mentioned bending machine control afore mentioned rules when identical with target shape in the above-mentioned cooling agent control reduces.
Another aspect of the present invention, a kind of control method of rolling device is provided, by control bending machine controlled quentity controlled variable and cooling agent controlled quentity controlled variable, control is rolled the shape of material, it is characterized in that, mode so that the tension force of the plate width of cloth direction end that is rolled material reduces changes above-mentioned bending machine control and cooling agent control respectively, or a change side shape control desired value wherein.
Another aspect of the present invention, a kind of control device of rolling device is provided, passing through control bending machine controlled quentity controlled variable and cooling agent controlled quentity controlled variable, control in the rolling mill control apparatus of the shape that is rolled material, it is characterized in that, mode so that the tension force of the part of the plate width of cloth direction end that is rolled material reduces changes bending machine control and cooling agent control or one of them shape control desired value respectively.
Another aspect of the present invention, a kind of control method is provided, for common control object, use the control method of the processing unit (plant) of the control system more than 2, it is characterized in that, with control and the mode of above-mentioned control system separately as the 2nd different control variables of the 1st control variables of control object, change the pairing control desired value of one or more control system in above-mentioned 2 above control systems, make above-mentioned the 2nd control variables compare control desired value in the above-mentioned control system more than 2 above-mentioned the 2nd control variables when identical and reduce.
Another aspect of the present invention, a kind of control device is provided, for common control object, in the control device of the processing unit (plant) of the control system of application more than 2, it is characterized in that, with control and the mode of above-mentioned control system separately as the 2nd different control variables of the 1st control variables of control object, change the pairing control desired value of one or more control system in above-mentioned 2 above control systems, make above-mentioned the 2nd control variables compare control desired value in the above-mentioned control system more than 2 above-mentioned the 2nd control variables when identical and reduce.
[0010]
By the present invention, can keep as all shape quality of plate width of cloth direction, can seek to prevent the edge fracture of plate width of cloth direction end simultaneously again.Also having, is not only rolling device, about for the control of established part, other parts are brought the processing unit (plant) of influence, all can reduce this influence.
Description of drawings
[0044]
Fig. 1 is the control pie graph.
Fig. 2 is all pie graphs.
Fig. 3 is the suitable figure in edge tensioning correction.
Fig. 4 is the key diagram that the zone of shape control is divided.
Fig. 5 is the key diagram of edge tensioning phenomenon.
Fig. 6 is the details drawing of edge tensioning decision maker.
Fig. 7 is the action diagram of target shape change device.
Fig. 8 is the thickness of slab in milling train, the key diagram of tension force control.
Fig. 9 is the action diagram in thickness of slab, tension force control.
Symbol description
[0045]
21-be rolled material, 22-work roll, 23-central roll, 24-coolant jet, 302-edge tensioning decision maker, 303-target shape change device, the control of 304-bending machine shape, the control of 305-cooling agent shape.
The specific embodiment
[0011]
Below, utilize drawing explanation embodiments of the invention.At first, utilize Fig. 1 to illustrate to be applicable to the general example of control system of the present invention.
[0012]
As control object 11, contain control object A (central part shape for example described later), control object B 1 (being equivalent to WS edge part shape described later) in addition ... control object B n (being equivalent to DS edge part shape described later).These also can be the distribution values that for example resembles the distribution of the plate width of cloth direction in rolling stock.Each value determines the measured value 12 of control object A, the measured value 13 of control object B 1, the measured value 14 of control object B n by analyzer (not shown).Goal-setting device 15 is set the desired value 17 of controlling object A.Control system-1 (16) ... control system-n (17), for the desired value 17 of the measured value 12 that makes each control object A and control object A (if export control object A1 described later desired value change value 22, control the desired value change value 23 of object An, the value that its value is subtracted each other) zero deflection is such between, and control operation object 18 (for example being equivalent to bending machine described later) and control operation object 19 (for example being equivalent to cooling agent described later) are controlled.
[0013]
Control Obj State decision maker 20 is judged the measured value 13 of control object B 1 respectively ... whether the measured value 14 of control object B n is feasible value.If not feasible value, output is not feasible value (and control object) in control desired value change device 21.Control desired value change device 21, it is such to make above-mentioned control object become feasible value, in control system-1 (16) ... on any one of control system-n (17) (or part), any one of output control desired value change value (22～23) (or part).Also have, control desired value change device 21 does not change or reduces the influence to control object A that is caused by above-mentioned change, output control desired value change value for keeping control desired value beyond it.
[0014]
Like this, on the control object that a plurality of control systems quilts are suitable for, the state variable at being suitable for control system can keep its value, can control other control variables simultaneously again.Here as shown in Figure 1 concrete, the control Obj State decision maker 20 of judging the control Obj State that becomes new control target and the control desired value change device 21 that changes the control desired value of each control system according to its result of determination are set.For the control object, in the control system that a plurality of control systems quilts are suitable for, for reaching certain control purpose, if be suitable for new control system, the situation that meeting existence and now suitable control system are interfered is under the sort of situation, by the change control desired value of suitable control system, generation interference between control system now, when making the retentive control precision in feasible value, reaching new control target becomes possibility.
[0015]
Below, the example in the concrete control that is applicable to rolling device of the control concept of above-mentioned explanation is described.In Fig. 3, #1 platform 801 and #2 platform 802, be provided with respectively be rolled that material 14 directly contacts, rolling upper and lower a pair of work roll 22 (22a, 22b) and at the upper and lower a pair of central roll 23 (23a, 23b) of vertical direction upper support work roll 22.Though unexposed, central roll 23 is by upper and lower a pair of reinforcement roll, the support vertical direction.Though (action direction of bending force such as direction of arrow F) is not shown for the work roll bending apparatus, acts on bending force by the work roll bending apparatus on work roll 22.The roll shift unit of axially mobile central roll 23 is set in addition.
[0016]
For work roll 22, the coolant jet 24 of ejected coolant is set.Coolant jet 24 (or also be called location cooling), it and establishes a plurality of nozzles in plate width of cloth scope, for each nozzle, be equipped with flow adjustable valve (not shown) respectively, can adjustable injection flow.And each flow adjustable valve can be controlled the flow of injection respectively.Be rolled on the plate width of cloth direction of material 21 injection that makes it to have flow distribution.
[0017]
At the outlet side of work roll 22, be provided with and measure the SHAPE DETECTION device 25 that is rolled material 21 shapes.
[0018]
In Fig. 3, SHAPE DETECTION device 25 for example every 50mm on plate width of cloth direction exports once.Represent output with the symbol 41 of Fig. 4.Measuring shape mechanism 301, the output of decomposing shapometer 25 as shown in Figure 4, is exported as WS edge (fore side edge) shape 42, central part shape 43 and DS edge (driving side edge) shape 44.
[0019]
[0020]
Generally when product turnout, the cut situation of edge part is a lot, on product quality, even guarantee for terminal use's product, because that central part shape 43 is the situation of object is a lot, so central part 43 is very important.The shape of central part is important, is used to control the control 304 of bending machine shape and the cooling agent shape control 305 of output board shape, and the control object of these controls is central part shapes 43 as shown in Figure 4.Central part shape 43 in utilizing the detection shape of SHAPE DETECTION device, becomes the WS edge shape 42 of removing plate end and the part of DS edge shape 44.In the present embodiment, because the shape of edge part, the flase drop survey that caused by crawling of plate etc. very easily takes place, so remove from the control range with the goal-setting of target shape setting device 306, controls as the object of shape control with central part shape 43.
[0021]
Like this, by bending machine shape control 304 and cooling agent shape control 305,, control the shape control of the shape (fluctuation of plate) that is rolled material as the control of the cold-rolling mill that is used to produce thin plate.That is to say, it is consistent with target shape like that shape is controlled to be the actual signal that makes the SHAPE DETECTION device that is arranged on the milling train outlet side, bending machine (exert pressure on work roll, produce deflection, control shape), coolant jet (location cooling) that use is arranged in the milling train (utilize the rolling thermal expansion control shape that causes by work roll.)。
[0022]
For shape control, utilize control 304 of bending machine shape and cooling agent shape to control 305 two types, in bending machine shape control 304, all along plate width of cloth direction, carry out the correction of 2 times～4 times function shape contoureds, on the other hand, in cooling agent shape control 306, the surveyed area amplitude of fit shapes detector 25 (about about 50mm) is selected by the mode that sprays or do not spray cooling agent, the control shape.
[0023]
Edge tensioning decision maker 302 in detail as shown in Figure 5.In edge tensioning decision maker 302, input is as the WS edge part shape 42 and the DS edge part shape 44 of the shape of two edges portion, when than the value of rolling condition of predesignating etc. hour (as shape, the direction dictates of elongation is a positive direction, so tension direction=tension direction is a negative direction) be judged to be the edge tensioning.As the judgement of this edge tensioning, judge WS side and DS side respectively.
[0024]
If tensioning describes to the edge, then the shape that is rolled material in milling train as shown in Figure 5, by the decision that distributes of the surface configuration of work roll 22 and the plate width of cloth direction thickness of slab that is rolled material 21.Cause heating by rolling, work roll 22 can thermal expansions, in the part that does not have the work roll 22 that is rolled material 21, because the no rolling heating that causes, so do not generate heat.Between heating part and non-heating part, heat spreads to non-heating part from heating part, so the continuous minimizing of thermal expansion meeting.Under the situation big by the rolling heating that causes, it is big that the slip of this thermal expansion becomes, and the radius of work roll 22 reduces sharp in the plate end.Therefore, in the plate end, the edge tensioning phenomenon by the rolling drafts that causes diminishes, the elongation of plate end tails off can take place.
[0025]
In the operation of above-mentioned operation, if be rolled the plate end of material 21 crackle is arranged, then in the process of milled sheet, its place one applies tension force, will cut off for the starting point plate with the crackle.This phenomenon is exactly the edge fracture.Want to be prevented, must prevent in the plate end, apply the edge tensioning phenomenon of hightension.
[0026]
Utilize Fig. 7, the edge tensioning control that the change of the target shape that is caused by target shape change device 303 brings is described.In edge tensioning control, because being the tension force of plate end, edge tensioning phenomenon is in high state, so the viewpoint from preventing that edge fracture, operating efficiency from improving in order to prevent the edge phenomenon of rupture, reduces to be applied to the tension force (control panel end on prolonging direction) on the plate end.
[0027]
On the target shape change device, as shown in Figure 7, the target shape of controlling by the bending machine shape changes the target shape of cooling agent shape control.The target shape of bending machine shape control 304 is identical with the central part target shape.By the target shape change of this cooling agent shape control 305, cooling agent shape control 305, as long as one recognize the shape elongation near the interior plate end at edge, will ejected coolant.Thus, become following 1) action.
[0028]
1) reduces rate of change in the plate end of the thermal expansion of roll.Therefore, by the ejected coolant of concentrating in the plate end, carry out the variations in temperature of plate end sleekly.
[0029]
In addition, for bending machine shape control 304, because the shape (extending little direction) of cooling agent shape control 305 control edge part on tension direction is judged as in addition and is necessary extension, on the direction of roll seam closure, operate bending machine, become following 2) action.
[0030]
2) it is such that the plate end is depressed (roll seam diminishes) more, the control bending machine.
[0031]
Like this,, can suppress to carry out edge tensioning phenomenon effectively if can effectively utilize cooling agent, if but take out all shapes of plate width of cloth direction from target shape, the quality of product just can not be guaranteed.Therefore, target shape change device 303 will be on certain level (as product, the level of no problem) all shapes of holding plate width of cloth direction, suppress edge tensioning phenomenon simultaneously and change target shape like that.That is to say,, in the cooling agent shape control 305 of using the same target shape and bending machine shape control 304, positive give different target shapes, make to produce between two controls and interfere for the raising of product quality.
[0032]
Target shape change device 303, not worsening with the central part shape quality is purpose, in the control of central part shape, to keep the true form of the such shape of easy rolling operation, target setting shape.Therefore, think that true form is more near target shape, control accuracy is good more, owing to have the feasible value of control accuracy to a certain degree, so can make cooling agent shape control 305 and bending machine shape control 304 have target shape respectively, make it by above-mentioned 1) and 2) inhibition of the edge tensioning that causes becomes possibility and the central part shape changes in feasible value like that.
[0033]
Like this, by the target shape in shape control 305 of change cooling agent and the bending machine shape control 304, can realize that the edge tensioning suppresses control.
[0034]
Here, when the bending machine of work roll 22 is operated (can use the asymmetric curvature machine) WS (fore side bending machine) and DS (driving side bending machine) respectively, the side of being judged by edge tensioning decision maker 302 is implemented above-mentioned target shape change.When work roll bending machine WS and DS can not operate respectively, on edge tensioning decision maker 302, have only as both sides and judged simultaneously under the situation of WS and the tensioning of DS edge, can implement above-mentioned target shape change at WS side, DS side.
[0035]
In the present embodiment, changed the target shape that the cooling agent shape is controlled 305 sides, also variable bending machine shape controls the target shape of 304 sides.In addition, also variable both sides' target shape.General, changing the low side's of control effect target shape, the target shape side-play amount of shape 43 is little from central division, and form accuracy is good.Common rolling in, the bending machine of work roll 22 is very big by the influence that cooling agent brings to shape, so in an embodiment, changes the target shape of cooling agent shape control 305.
[0036]
As the 2nd embodiment of the present invention, thickness of slab control 803, the tension force control 804 of same consideration in milling train.Also have, adopt the explanation with the 1st embodiment of prosign identical with the 1st embodiment.In 2 continuous-rollings shown in Figure 8, the thickness of slab control 803 of the interstation tension force of application controls interstation tension force control 804 and control #2 platform (802) outlet side thickness of slab.The operating side of thickness of slab control 803 is #1 platform (a 801) speed, for tension force control 804, and operation #1 platform (801) speed during low speed, if speed rises, operation #2 (802) platform is depressed.Because rolling instability during low speed, so be used for the very big speed of operating effect, make job stabilization preferential.Here, for from a certain speed, tension force is controlled 804 alter operation ends and is depressed residual speed command that outputs to #1 platform (801) before it for #2 platform (802).If residual speed command because the setting value of the velocity balance device of #1 platform 801 and #2 platform 802 is different, so rolling may be unstable.
[0037]
Therefore, when the speed command of the tension force of #1 platform 801 being controlled 804 is residual, to eliminate it is purpose, the thickness deviation of thickness of slab control 803 and the tension force of tension force control 804 are revised, by in the permissible range of thickness of slab precision, deliberately pricking random thickness of slab, eliminate the speed command part of tension force control 804, carry out stable rolling.
[0038]
Fig. 9 represents to move summary.Milling train is realized from speed 0 to low speed, running from low speed to high speed.During low speed, tension force control 804 is the operating side with #1 platform (801) speed.When low speed quickened, tension force control was depressed with #2 platform (802) and is the operating side.When becoming high speed, because as-rolled condition changes, the speed correction almost becomes 0.This is when being set in high speed because of speed, becoming setting value with thickness of slab, tension force and be set like that.Say it on the contrary,, produce as-rolled condition instability, dislocation etc. if residual very big speed correction during high speed is in and predicts different as-rolled conditions.For it is prevented, be necessary to control speed command to the #1 platform near 0.
[0039]
For with its realization, even when high speed, discern the residual of #1 platform speed commands with speed correction decision maker 805, in control instruction change device 806, try to achieve correction, as the correction of giving each control device (speed control unit 807, depress control device 808) to thickness of slab, tension force.The situation of the example of Fig. 9 is because the speed correction remains in positive side, and wanting to make it is 0 in thickness of slab control, must make thickness deviation be identified as minus side, exports the thickness of slab correction like that to strengthen thickness of slab control desired value.On the other hand, for tension force control 804, send in order to make the tension force deviation add heavy back at positive side, thickness of slab, output reduces the such tension force correction of tension force control desired value.Also have,, thickness of slab, tension force are entered in the permissible range of control accuracy set like that for correction.
[0040]
By the desired value of control of change thickness of slab and tension force control, the interference that produces two control systems makes #1 (801) speed command reduce to 0.If #1 (801) speed command diminishes, then the desired value of thickness of slab control 803 and tension force control 804 is returned initial value before the level that arrival is allowed.Thus, can keep thickness of slab precision, tension force precision in admissible error, can guarantee rolling stability again.
[0041]
For a control object, a plurality of control systems by situation about being suitable under, the application of the invention, in the control system that may reach with original control purpose various objectives, the present invention can be suitable for.
[0042]
Like this, when keeping the shape all, suppress edge tensioning phenomenon, can make and seek form accuracy and operating efficiency improves as plate width of cloth direction.
[0043]
General, the application of the invention, the control accuracy that can keep each control system can be appended the control for new control variables again in permissible range.
Claims (2)
1, a kind of control method for common control object, is used the control method of the processing unit (plant) of the control system more than 2, it is characterized in that,
With control and the mode of above-mentioned control system separately as the 2nd different control variables of the 1st control variables of control object, change the pairing control desired value of one or more control system in above-mentioned 2 above control systems, make above-mentioned the 2nd control variables compare control desired value in the above-mentioned control system more than 2 above-mentioned the 2nd control variables when identical and reduce.
2, a kind of control device for common control object, in the control device of the processing unit (plant) of the control system of application more than 2, is characterized in that,
With control and the mode of above-mentioned control system separately as the 2nd different control variables of the 1st control variables of control object, change the pairing control desired value of one or more control system in above-mentioned 2 above control systems, make above-mentioned the 2nd control variables compare control desired value in the above-mentioned control system more than 2 above-mentioned the 2nd control variables when identical and reduce.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005063236A JP4449789B2 (en) | 2005-03-08 | 2005-03-08 | Rolling apparatus control method and control apparatus |
| JP2005063236 | 2005-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200610006945XA Division CN100443204C (en) | 2005-03-08 | 2006-01-26 | Control method and control device for rolling device |
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| CN101444797A true CN101444797A (en) | 2009-06-03 |
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| CNA2008101745586A Pending CN101444797A (en) | 2005-03-08 | 2006-01-26 | Control method and control device thereof |
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| CN102962263A (en) * | 2011-08-31 | 2013-03-13 | 株式会社日立制作所 | Control device of rolling mill and control method of rolling mill |
| CN114749494A (en) * | 2021-01-08 | 2022-07-15 | 株式会社日立制作所 | Plant control device, plant control method, and program |
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| CN102380513B (en) * | 2010-08-25 | 2014-11-05 | 株式会社日立制作所 | Rolling control device and rolling control method |
| JP5597519B2 (en) * | 2010-10-29 | 2014-10-01 | 株式会社日立製作所 | Rolling control device and rolling control method |
| WO2012111151A1 (en) * | 2011-02-18 | 2012-08-23 | 株式会社日立製作所 | Rolling control device and rolling control method |
| CN102513373B (en) * | 2011-12-29 | 2014-05-21 | 中冶南方（武汉）自动化有限公司 | Cold rolled plate shape residual eliminating method |
| JP6173898B2 (en) * | 2013-12-10 | 2017-08-02 | 株式会社日立製作所 | Rolling control device, rolling control method, and rolling control program |
| JP7554710B2 (en) * | 2021-05-28 | 2024-09-20 | 株式会社日立製作所 | PLANT CONTROL DEVICE, PLANT CONTROL METHOD, AND PROGRAM |
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| JPS60206511A (en) * | 1984-03-29 | 1985-10-18 | Sumitomo Metal Ind Ltd | Plate shape control method and device |
| JPH0284211A (en) * | 1988-09-19 | 1990-03-26 | Nippon Steel Corp | Shape control method for cold rolling mill |
| EP0776710B1 (en) * | 1995-11-20 | 2001-12-19 | SMS Demag AG | Device for influencing the profile section of a rolled strip |
| JP2000190012A (en) * | 1998-12-25 | 2000-07-11 | Furukawa Electric Co Ltd:The | Plate shape controlling method and equipment in cold rolling |
| JP3958992B2 (en) * | 2002-04-12 | 2007-08-15 | 新日本製鐵株式会社 | Sheet shape control method in cold rolling |
-
2005
- 2005-03-08 JP JP2005063236A patent/JP4449789B2/en not_active Expired - Fee Related
-
2006
- 2006-01-18 TW TW095101915A patent/TW200631687A/en not_active IP Right Cessation
- 2006-01-26 CN CNB200610006945XA patent/CN100443204C/en not_active Expired - Fee Related
- 2006-01-26 CN CNA2008101745586A patent/CN101444797A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962263A (en) * | 2011-08-31 | 2013-03-13 | 株式会社日立制作所 | Control device of rolling mill and control method of rolling mill |
| CN102962263B (en) * | 2011-08-31 | 2014-12-31 | 株式会社日立制作所 | Control device of rolling mill and control method of rolling mill |
| CN114749494A (en) * | 2021-01-08 | 2022-07-15 | 株式会社日立制作所 | Plant control device, plant control method, and program |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4449789B2 (en) | 2010-04-14 |
| CN100443204C (en) | 2008-12-17 |
| JP2006247656A (en) | 2006-09-21 |
| CN1830588A (en) | 2006-09-13 |
| TWI304754B (en) | 2009-01-01 |
| TW200631687A (en) | 2006-09-16 |
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Application publication date: 20090603 |