CN1483525A - Control method for tandem rolling equipment and tandem rolling equipment - Google Patents
Control method for tandem rolling equipment and tandem rolling equipment Download PDFInfo
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Abstract
To provide a control method for tandem rolling equipment to efficiently modify a local shape of a plate end of a rolling material, and also to provide tandem rolling equipment. In the tandem rolling equipment, the shape of the plate is measured on the outlet side of a rolling mill at the final stage of a plurality of the rolling mills, and the plate is wholly separated into a central part and the plate ends in the width direction thereof. The plate thickness distribution of the plate end of the rolling material is controlled to make detection value of the shape of the plate end reach a target value on at least either an inlet side or the outlet side of the rolling mill at the final stage, and thus the plate ends are efficiently modified. (C)2004,JPO.
Description
Technical field
The present invention relates to the control method and the cascade rolling equipment of cascade rolling equipment.
Prior art
In the control method of cold rolling plate shape (spy opens flat 9-271818 communique, the spy opens flat 6-304623 communique), it is the whole purpose that is shaped as with the control panel width, the local shape that the plate end occurs is ignored the SHAPE DETECTION signal of plate end mostly not as object during control.Think that when this reason was rolling thicker material, local plate end shape was difficult to variation, even some variation can not cause fault during cutting plate yet, and, do not revise the effective ways of local shape.
In recent years, cold rolling goods have the production increase of top grade variety, plate thickness attenuation, the tendency of hardness hardening.Thereupon, local plate end shape variation becomes noticeable.
Relevant reason is because there is not an effective ways of the local shape of revision board end.
Summary of the invention
The object of the present invention is to provide a kind of control method and cascade rolling equipment of cascade rolling equipment of local shape of plate end that can more effective correction rolling stock.
Based on the plate end shape detected value in the plate shape of the whole plate width of final level roll mill outlet side mensuration in many roll mills, the plate thickness of the plate end of controlled rolling material distributes.
Description of drawings
Fig. 1 is the control structure figure of the cascade rolling equipment of expression one embodiment of the invention.
Fig. 2 is as the end local elongation of control object and the key diagram of common edge wave.
Fig. 3 is the key diagram as the compact and common middle part ripple in the part, end of control object.
Fig. 4 is the result of expression when having revised the end local elongation shape correction figure.
Fig. 5 is the key diagram of the generation reason of end local shape.
Fig. 6 is the edge decline control structure figure of very thin operation roll.
Fig. 7 is the control structure figure of the cascade rolling equipment of expression another embodiment of the present invention.
Fig. 8 is the figure of control logic of the example of presentation graphs 7.
Fig. 9 is the control structure figure of the cascade rolling equipment of expression another embodiment of the present invention.
Figure 10 is the control structure figure that has been suitable for cascade rolling equipment of the present invention 5 grades.
Figure 11 is the control structure figure of the cascade rolling equipment of expression another embodiment of the present invention.
The specific embodiment
Cold rolling goods have production increase, the plate thickness attenuation of top grade variety, the tendency of hardness hardening.Thereupon, local plate end shape variation causes and gazes at.Fig. 2 is that longitudinal tensile strain becomes big in the narrow range of plate end a), produces small ripple, therefore, with Fig. 2 b) shown in edge wave different.That is, Fig. 2 a), b) compare with central part, all be that edge wave all becomes greatly, but b) become big gradually near the elongation from central division, and a) its scope sharply becomes big in 10% the zone elongation that is defined as at most less than the plate width.On the other hand, opposite with Fig. 2, have and have only the less and compact Fig. 3 of panel edges ripple shape a), this and be commonly referred to as the middle part ripple Fig. 3 b) shape different.
Revise as during a) shape of Fig. 2, because edge wave makes the big control of work roll bending force change.But, not only the narrow range to the plate end is effective for the effect of the crooked inhibition elongation of work roll, also to effective near the central part, so revised shape as shown in Figure 4, the elongation of plate end diminishes, but slightly lean on the elongation of the part at center also to diminish than plate end, the result becomes the complexity that is called compound shape and forms.It is very difficult revising this compound shape, and there is problem the product property aspect.
Therefore, ignore the signal of plate end when carrying out shape control usually, only use the signal of central part.At this, the shape after the control becomes Fig. 2 a) and Fig. 3 shape a), but because if rolling back utilize prune clip the plate end will general planar, so do not take special countermeasure.Certainly, this method has the problem of pruning the yield rate reduction that brings.
In addition, the variation of local shape can cause whole plate faults such as plate is disrumpent feelings, so be difficult to improve mill speed, productivity reduces.
The applicant finds that the so-called edge decline that the local shape of so far described plate end changes and the plate thickness in same plate end sharply reduces has substantial connection.That is, known that the input side and the outlet side that prolong machine take place, then local shape changes.Below adopt Fig. 5 to describe.
As Fig. 5 a) shown in, the ratio that the plate thickness of (comprising the edge descends) and outlet side distributes if the plate thickness of input side distributes is identical at the each point of plate width, in other words identical as if the reduction ratio of width each point, then becomes flat shape.Different therewith, as Fig. 5 b) shown in, descending hour at the edge of input side, the edge of outlet side descends when being rolled under the condition that becomes big, it is big that the reduction ratio of plate end becomes, and it is big that longitudinal tensile strain becomes, and produces local elongation.On the contrary, as Fig. 5 c) shown in, descend when big at the edge of input side, the edge of outlet side descends when being rolled under the condition that diminishes, the elongation of plate end diminishes, and becomes the shape of local compact condition.When plate thickness is thicker,, has the effect of a part that absorbs the longitudinal tensile strain variation, so can not produce too big local elongation and compactness in the distortion that the plate end also produces the plate width.But its effect changes so be easy to generate local shape not as good as than thin material.
From above-mentioned, the edge of the input side by controlling final path descends, and can revise the plate end local shape of final path outlet side.In addition, also can descend, revise the board local shape by edge at final path control outlet side.
Particularly, when local elongation, the edge decline of final path outlet side is diminished, or make the edge of final path input side descend change greatly.In addition, when the compactness of part, make the edge of final path outlet side descend change greatly, or the edge decline of final path input side is diminished.Like this, when revising same shape, at input side and outlet side, rightabout operation is carried out in the control that descends for the edge.
When the edge of controlling final path input side descends, revise the means that the edge descends in the prime control of final level and get final product.At this edge decline modification method following the whole bag of tricks is arranged.Effective method is, shown in for example special fair 4-200814 communique, an end shown in Figure 6 become point symmetry as the operation roll configuration of very thin shape, the alignment edges method that move in the zone that descends.In addition, this with very thin starting point 18 and plate end distance from being made as δ w, change this value by utilizing operation roll mobile device, the edge is descended is controlled to be desired value.
As another edge decline modification method, according to CAMP-ISIJVol.5 (1992), 495～498 pages " ability that the reduction edge of 6 grades of cold rolling roll mills descends ", as edge decline modification method, so-called shape modification method, for example the operation roll is increased the method for bending force, mobile central roll makes the method for operation roll bending also effective.In addition, according to plasticity and No. 426 (1996-7) 717～722 pages " the cold edge dropping characteristic of prolonging plate that the unipath is rolling " of processing 37 volumes, can also utilize the method for cross-operation roll up and down etc.In addition, come the controlled rolling load, change the edge and descend by the roll gap that changes screw.In addition,,, some is divided into edge decline modification method, other is divided into shape control method, a method is not used to control two aspects so be suitable for when of the present invention because said method is the method for control panel shape.
Therefore, the local shape in final level outlet side check-out console end, at above-mentioned each device of last path control of final level, the edge of the final level of control input side descends and gets final product.Perhaps, at the local shape of final level outlet side check-out console end, the edge of the final level of control descends, and the edge of the final level of control outlet side descends and gets final product.Perhaps, the local shape in final level outlet side check-out console end, share the edge that carries out final level input side descend control and, the control that descends of the edge of final level outlet side gets final product.The detection of local shape is the shape of assay plate width integral body, separates local shape.Because detected shape in the plate end, be can not judge among Fig. 2 or Fig. 3 a) or b).
Below, as other method, measuring the edge at final level outlet side descends and the plate shape, the whole shape of detected plate width is separated into plate end shape and central part shape in addition, plate end shape detected value and final level outlet side edge decline detected value after separating are determined final level input side edge decline desired value, in order to become this input side edge decline desired value, at least a above edge decline correction mechanism of the prime of the final level of control gets final product.
Current, as a method, when the plate end shape detected value after control separates became desired value, according to the magnitude relationship of detected edge slippage and object edge slippage, selection was that the edge of the final level of control input side descends, or the edge of control outlet side descends.Identical at edge decline detected value with desired value, when the palette end shape is not desired value, the edge is descended controls to the direction bigger than desired value, with the plate end shape as desired value.This is too little for fear of edge decline, and the plate thickness of plate end becomes big edge and promotes state.
Measuring the edge at final level outlet side descends and the plate shape, for detected edge slippage becomes the object edge slippage, during at least a above edge decline correction mechanism of the prime of the final level of control, the shape of detected plate width entire domain is separated into plate end shape and central part shape in addition, and the plate end shape detected value that the controlled quentity controlled variable of this edge decline correction mechanism is modified to after the separation becomes desired value.For example, the value that the object edge slippage itself is modified to the plate end shape becomes desired value gets final product.
, also control simultaneously and adopt following method when the edge descends at the local shape of control panel end not only at final level outlet side.Promptly, measure the shape of edge decline and plate at final level outlet side, at least a above edge decline correction mechanism of the final level of control, so that detected edge slippage becomes the object edge slippage, the whole shape of detected plate width is separated into plate end shape and central part shape in addition, plate end shape detected value and final level outlet side edge decline detected value after separating are determined final level input side edge decline desired value, in order to become this input side edge decline desired value, at least a above edge decline correction mechanism of the prime of the final level of control gets final product.
So far in the method, by and use for the central part SHAPE DETECTION value after separating becomes the known method that desired value is controlled the shape controlling organization of final level, the whole shape of plate width all can be controlled to be desired value.(embodiment)
Fig. 1 illustrates one embodiment of the invention.Rolling stock 1 is rolling by 2 roll mills, is rolled onto spool 29 through flexible roll 28.These roll mills are respectively 6 grades of roll mills that are made of a pair of operation roll 2,3,8,9, central roll 4,5,10,11, reinforcement roll 6,7,12,13, have operation roll bending apparatus, central roll bending apparatus, central roll mobile device as the shape controlling organization.
At final level (the 2nd grade) outlet side, by the whole shape of SHAPE DETECTION device 14 assay plate width as final level roll mill.The shape of measuring is delivered to computer 15, is separated into plate end shape and central part shape at this.Considered the method for several separation, an example below has been shown.At first, the plate end for example is set at 10%, with the shape signal of this part as the plate end shape, with remainder as the central part shape.10% ratio also can be other value, can set arbitrarily.In addition, also can be not according to the plate width, and be set at 50mm or 100mm.Certainly, also can adopt in addition value.In the difference of the nearest shape output of plate end shape and adjacency hour, owing to think as Fig. 2 b), Fig. 3 b) shown in the whole shape of plate width change, so do not regard local shape this moment as, do not carry out the control of the following stated.Therefore, obtain nearest shape output poor of plate end shape and adjacency, only during greater than setting, should differ from as the plate end shape and export in this value.
In the shape of separating, the shape of central part outputs to the 2nd grade of shape control computer 16, utilize known method to control the shape controlling organization respectively, i.e. the 2nd grade of operation roll bending apparatus 25, central roll bending apparatus 26,27, operational ton Fw2, the Fi2 of central roll mobile device (not shown), δ 2.
On the other hand, the plate end shape outputs to computer 30.At this, calculate edge slippage correction for required the 2nd grade of input side edge decline correction amount E1 in revision board end or the 2nd grade of outlet side edge slippage Δ E2 or both sides.These computational methods are as described below.Export as the plate end shape that the outer elongation rate variance Δ ε of local elongation determination range calculates after separating.That is, become following formula.
Δ ε=hc/Hc-he/He (formula 1)
At this, he is the plate end panel thickness of the 2nd grade of outlet side, hc is the local elongation determination range of the same outlet side plate thickness of outer (near central part), and He is the plate end panel thickness of the 2nd grade of input side, and Hc is the outer plate thickness of local elongation determination range of same input side.In addition, Δ ε is for just representing the edge elongation, and Δ ε is a negative indication edge compactness.The edge slippage E1 of the 2nd grade of input side, the edge slippage E2 of the 2nd grade of outlet side are as follows respectively.
E1=Hc-He (formula 2)
E2=hc-he (formula 3)
In the embodiments of the invention, purpose is that to make Δ ε be 0.Need hc, the Hc of change formula 1, certain among he, the He, but the plate thickness hc, the Hc that utilize automatic plate thickness control device (AGC) to control near the part of central part in this become prescribed level, can not at will change for this reason.Therefore, be 0 by utilizing edge decline control change he or He or both sides to make Δ ε.
Current, when only changing he and revising Δ ε, that is, when the edge slippage E2 that only changes the 2nd grade of outlet side revised, the change amount Δ he of necessary he was
Δ he=Δ ε * He (formula 4)
On the other hand, when only changing He and revising Δ ε, that is, when the edge slippage E1 that only changes the 2nd grade of input side revised, the change amount Δ He of necessary He was
Δ He=-Δ ε * He2/he (formula 5)
Generally because central plate thickness and plate end panel thickness is poor, promptly the edge slippage compare with the plate thickness absolute value extremely little, so do not have mistake with central part plate thickness H, the h replacing formula 4 of the 2nd grade of input side, outlet side, the plate thickness of formula 5 yet.Therefore, formula 4, formula 5 are as follows.
Δ he Δ ε * H (formula 6)
Δ He -Δ ε * H2/h (formula 7)
The edge decline change amount of the edge decline change amount Δ E1 of the 2nd grade of input side, the 2nd grade of outlet side is as follows respectively.
Δ E1=-Δ He Δ ε * H2/h (formula 8)
Δ E2=-Δ He -Δ ε * H (formula 9)
More than be only to change the situation that a side's of the 2nd grade of input side or outlet side edge descends, but also can be that Δ ε is divided at the Δ ε 1 of input side correction with at the Δ ε 2 of outlet side correction that change both sides' edge descends.
In addition, also can be the Δ E1 that only controls the 2nd grade of input side usually, only in the time only can not revising, also control Δ E2 with it, considered variety of way.Certainly, for example do not have operation roll mobile device, and rolling loading be can not use because of plate thickness control also the time at the 2nd grade, that is, when not having edge decline modification method, the edge that only carries out the 2nd grade of input side control that descends.
Below, edge decline change amount Δ E1, Δ E2 deliver to the 31, the 2nd grade of edge decline control computer 32 of the 1st grade of edge decline control computer respectively, at this, utilize following formula to calculate required operation roll amount of movement Δ δ w1, Δ δ w2, loading change amount Δ P1, the Δ P2 of each edge decline change amount of realization, each device is controlled according to it.
Δ δ w1=α 1 * Δ E1 (formula 10)
Δ δ w2=α 2 * Δ E2 (formula 11)
Δ P1=β 1 * Δ E1 (formula 12)
Δ P2=β 2 * Δ E1 (formula 13)
At this, α 1, α 2, β 1, β 2 are constants of being determined by rolling condition, can wait in advance by experiment and obtain.
As the variation of said method, also can be to use device beyond above-mentioned as edge decline correction mechanism, for example the 1st grade of operation roll bending apparatus, central roll bending apparatus, central roll move etc.
Fig. 7 illustrates a current embodiment.The structure of roll mill is identical with Fig. 1, but in the outlet side check-out console shape of final level, also utilizes edge decline detector 19 to detect the edge slippages simultaneously, exports to computer 30.In computer 30, accept signal from the relevant plate end shape of computer 15, utilize the 1st grade of operation roll location δ w1 of logic control shown in Figure 8 or the 2nd grade of operation roll location δ w2.
Key diagram 8.At first, judge that the plate end shape is elongation (Δ ε＞0) or compact (Δ ε＜0).In when elongation, can be as can be known from the relation of Fig. 5, final level input side edge is descended become big or make final level outlet side edge descend to diminishing to get final product.
Then, at the poor Δ E of edge decline measured value E2 and desired value Ea2 during for just (edge suppression ratio desired value is big), because need reduce final level outlet side edge descends, so reduce the control of the direction of final level outlet side edge decline, the control that promptly increases the 2nd grade of operation roll location Δ δ w2.On the contrary, when difference Δ E is negative (edge suppression ratio desired value is little), because the control that needs the final level of increase outlet side edge to descend so increase the control of the direction of final level input side edge decline, promptly reduces the control of the 1st grade of operation roll location Δ δ w1.
Carry out and above-mentioned opposite operation when equally, the plate end shape is for compactness.That is, reduce final grade of input side edge and descend, or the edge decline of the final level of increase outlet side gets final product.Promptly, difference Δ E is timing (edge suppression ratio desired value is big), owing to need reduce the control of the direction of final level outlet side edge decline, reduce the control of final level input side edge descent direction, the control that promptly increases the 1st grade of operation roll location δ w1.On the contrary, difference Δ E (edge suppression ratio desired value is little) when negative, owing to need increase the control of the direction of final level outlet side edge decline,, promptly reduce the control of the 2nd grade of operation roll location δ w2 so increase the control of the direction of final level outlet side edge decline.
In addition, decline is controlled to be desired value at the edge, and Δ E is 0 o'clock, selects to increase the finally control of the direction of level outlet side edge decline.This reason is that the plate thickness of the too small and plate end because general edge descends is than the operation inconvenience of the big state of central part for back technology.Sometimes, the edge descends does not become desired value, but owing to revise little the getting final product of edge decline change amount of shape, so there is not big problem.In addition, the product property aspect is than the edge more preferably shape that descends usually mostly.If when being the goods of the preferentially desired value of edge decline, Δ E is 0 o'clock, the operation of not carrying out the revision board end shape gets final product.
Fig. 9 illustrates another embodiment.The structure of roll mill is identical with Fig. 1.In final level outlet side check-out console shape, also utilize edge decline detector 19 to detect edge slippage E2 simultaneously, export to computer 33.On the other hand, will give computer 15, be separated into plate end shape and central part shape at this by the shape that SHAPE DETECTION device 14 is measured.
In the shape of separating, the shape of central part outputs to the 2nd grade shape control computer 16, utilize known method, control the shape controlling organization respectively, i.e. the 2nd grade of operation roll bending apparatus 25, central roll bending apparatus 26,27, operational ton Fw2, the Fi2 of central roll mobile device (not shown), δ 2.
Then, signal and final goal edge slippage Ea2 that computer 34 is accepted from the relevant plate end shape Δ ε of computer 15 calculate the object edge slippage Ea1 of plate end shape as the 2nd grade of input side of desired value.
At this, when not having the edge decline detector 20 of the 2nd grade of input side, also can predict the controlled quentity controlled variable that realizes Ea1, also consider relevant distortion.
So far in the explanation, 2 grades cascade grinder has been described, the present invention does not limit the cascade number certainly.So far among the embodiment of the Fig. 1 shown in, Fig. 7, Fig. 9, also can be between 2 roll mills, or several roll mills of configuration in addition again before the 1st roll mill.Therefore, the embodiment of the general 5 grades cascade grinder that is applicable to that roll mill 51～55 constitutes has been shown among Figure 10.
The structure of each roll mill is identical with Fig. 1 with control method, and the 1st and the 2nd grade operation roll is a very thin shape shown in Figure 6, has the mobile device of variable each operation roll location δ w1, δ w2.
Deliver to computer 15 by the shape that SHAPE DETECTION device 14 is measured at the outlet side of final level, be separated into plate end shape and central part shape at this.In the shape of separating, the shape of central part outputs to the finally shape control computer 16 of (the 5th) level, utilize known method to control the 5th grade shape controlling organization respectively, i.e. operational ton Fw5, the Fi5 of operation roll bending apparatus, central roll bending apparatus, central roll mobile device, δ 5.
On the other hand, the plate end shape outputs to computer 30.At this, the 5th grade input side edge decline correction amount E4 required for the revision board end shape calculates according to described formula 8.
The 5th grade of input side edge modifications amount Δ E4 outputs to the 1st grade edge decline control computer 31.At this, the 1st grade edge descend control by very thin operation roll shown in Figure 6 the δ w1 that moves and, depressing with the change of the rolling loading P1 of crane 23 of hydraulic type carry out.In addition, computer 31 calculates each amount that is used to reach Δ E4.In addition, only descend and control and can not revise the time, Δ E4 is outputed to the 2nd grade edge decline control computer 31 with the 1st grade edge.
As mentioned above, use the 1st grade and the 2nd grade among Figure 10, can certainly use other level.Like this, except the described embodiment so far, can also carry out various combinations among the present invention.
In addition, for the structure of roll mill, be not limited to 6 grades of roll mills with central roll travel mechanism that so far described embodiment adopts, so long as have the roll mill of shape control device, edge decline control device, Any shape can.
Figure 11 illustrates the roll mill as the 1st grade, the example of the roll mill that employing can intersect the operation roll up and down in horizontal plane.Shape control is by by operation roll bending apparatus 21, operation roll angle of the crossing change device (not shown) up and down, and depresses crane 24, by changing bending force Fw1, angle of the crossing θ 1 respectively and rolling loading P carries out.Part in addition is identical with the described method of Fig. 1.
That is, the plate end shape outputs to computer 30.At this, the 2nd grade input side edge decline correction amount E1 required for the revision board end shape calculates according to described formula 8.
The 2nd grade of input side edge decline correction amount E1 outputs to the 1st grade edge decline control computer 31.At this, the 1st grade edge descend control be according to the change of the operation roll angle of the crossing and, depressing with the change of the rolling loading P1 of crane 23 of hydraulic type carry out.Like this, calculate these each amounts at computer 31.
In addition, as shape control method a plurality of known examples are arranged.For example, delivered operation roll and reinforcement roll as a pair of mode of intersecting up and down, middle roll or operation roll are given special convex surface and the mode that moves, changed the mode etc. of the refrigerating mode of roll at direction of principal axis, arbitrary mode can be suitable for the present invention.
In addition,,, also considered near the mode of the operation roll heating or the coldplate end, also can use this mode except the described mode so far for edge decline control method.
According to embodiments of the invention, there is not compound shape shown in Figure 4, the whole shape of plate width is good, can improve the product surcharge.In addition, the shape defect of the plate end that cuts is partly few, thereby improves yield rate.In addition, owing to there is not the disrumpent feelings and whole plate fault of plate,, can improve productivity so can improve mill speed.Can obtain above-mentioned or the like a plurality of effects.
The invention effect
According to the present invention, can provide the cascade rolling equipment of plate end that can more effective correction rolling stock Control method and cascade rolling equipment.
Claims (7)
1. the control method of a cascade rolling equipment is characterized in that:
Plate thickness at the width of the plate end of the input side of final level roll mill and at least one this rolling stock of side control in the outlet side distributes, and makes the plate end shape detected value in the whole plate shape of plate width of the final level roll mill outlet side mensuration in many roll mills become desired value.
2. the control method of a cascade rolling equipment, this cascade rolling equipment has many roll mills, it is characterized in that:
Measure rolled stock flitch shape at final level roll mill outlet side,
The whole plate shape of the plate width measured is separated into plate end shape and central part shape, plate thickness distribution in the input side of final level roll mill and at least one side control end in the outlet side makes the plate end shape measured value after the separation become desired value.
3. the control method of a cascade rolling equipment, this cascade rolling equipment has many roll mills, it is characterized in that:
Measure rolled stock flitch shape at final level roll mill outlet side,
The whole plate shape of the plate width measured is separated into plate end shape and central part shape, for the input side of setting final level roll mill and the edge decline change amount of at least one side in the outlet side, at least a edge decline correction mechanism of the prime before the final level of the control roll mill reaches this edge decline change amount and makes the plate end shape measured value after the separation become desired value.
4. the control method of cascade rolling equipment as claimed in claim 2 is characterized in that:
The whole plate shape of the plate width of measuring comprises the percentage elongation of rolling stock.
5. the control method of cascade rolling equipment as claimed in claim 2 is characterized in that:
The shape controlling organization of the final level of control roll mill makes the central part detected value of mensuration become desired value.
6. a cascade rolling equipment is characterized in that, comprising:
Measure the final level roll mill outlet side in many roll mills rolled stock flitch shape determinator and; At the control device of the plate thickness distribution of the plate end of at least one this rolling stock of side control of the input side of final level roll mill and outlet side, make the plate end shape detected value in the whole plate shape of plate width of mensuration become desired value.
7. the control device of a cascade rolling equipment is characterized in that:
Plate thickness in the plate end of the input side of final level roll mill and at least one this rolling stock of side control in the outlet side distributes, and makes the plate end shape detected value in the whole plate shape of plate width of the final level roll mill outlet side mensuration in many roll mills become desired value.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2002147070A JP3649208B2 (en) | 2002-05-22 | 2002-05-22 | Tandem rolling equipment control method and tandem rolling equipment |
| JP147070/2002 | 2002-05-22 |
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| EP2460597A1 (en) | 2010-12-01 | 2012-06-06 | Siemens Aktiengesellschaft | Method for controlling a tandem mill train, control and/or regulating device for a tandem mill train, machine-readable programming code, storage medium and tandem mill train |
| JP6074096B1 (en) * | 2016-06-02 | 2017-02-01 | Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 | Sheet profile control method for hot finishing tandem rolling mill and hot finishing tandem rolling mill |
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| EP1129796B1 (en) * | 1996-07-18 | 2004-09-29 | JFE Steel Corporation | Rolling method for reducing edge drop of strip |
| DE69809992T2 (en) * | 1997-04-11 | 2003-07-24 | Metso Paper, Inc. | Roller for a paper or board machine and method for manufacturing the roller |
| JP2000033411A (en) * | 1998-07-21 | 2000-02-02 | Toshiba Corp | Device for measuring genetic factor in rolling |
-
2002
- 2002-05-22 JP JP2002147070A patent/JP3649208B2/en not_active Expired - Lifetime
-
2003
- 2003-05-21 CN CNB031274854A patent/CN100409954C/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652961A (en) * | 2011-03-04 | 2012-09-05 | 东芝三菱电机产业***株式会社 | Control device and control method |
| CN102652961B (en) * | 2011-03-04 | 2014-04-02 | 东芝三菱电机产业***株式会社 | Control device and control method |
| TWI627001B (en) * | 2015-03-16 | 2018-06-21 | Sms Group Gmbh | Method for manufacturing metal belt |
| CN109807184A (en) * | 2017-11-22 | 2019-05-28 | 东芝三菱电机产业***株式会社 | The shape control apparatus of cluster mill |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3649208B2 (en) | 2005-05-18 |
| CN100409954C (en) | 2008-08-13 |
| JP2003334603A (en) | 2003-11-25 |
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