EP3419771A1 - Vollständige kompensation von walzenexzentrizitäten - Google Patents
Vollständige kompensation von walzenexzentrizitätenInfo
- Publication number
- EP3419771A1 EP3419771A1 EP17704240.5A EP17704240A EP3419771A1 EP 3419771 A1 EP3419771 A1 EP 3419771A1 EP 17704240 A EP17704240 A EP 17704240A EP 3419771 A1 EP3419771 A1 EP 3419771A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- roll
- rolls
- control device
- eccentricity
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
- B21B37/66—Roll eccentricity compensation systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
Definitions
- the present invention is based on an operating method for a roll stand for rolling a flat rolled stock of metal
- the whale scaffold having an upper set of rolls and a lower set of rolls
- Support rollers of the roll stand as a function of a Drehstel ⁇ treatment of at least one roller of the rolling stand are characteris ⁇ table, and second sizes, which are cha ⁇ characteristic of an eccentricity of the work rolls of the rolling stand as a function of a rotational position of at least one roller of the rolling stand, one of the rotational position of the at least one roller of the rolling mill dependent Kompensa ⁇ tion value is obtained,
- the present invention further relates to a Compu ⁇ terprogramm for a control device of a roll stand for rolling a flat rolled product made of metal, wherein the computer Program machine code includes, which is directly abungbar by the control device, wherein the processing of the machine code by the control means causes the control means operates the rolling stand according to such an operating method.
- the present invention further is directed to a STEU ⁇ er adopted for a whale zgerüst to Wal zen of a flat rolled product made of metal, wherein the control means is formed such Removing that it operates the rolling mill according to such a method of operation.
- the present invention is further based on a rolling stand for rolling a flat rolled stock of metal, wherein the rolling stand is controlled by such a control device.
- the object of the present invention is to provide possibilities by means of which a total eccentricity occurring during rolling of a flat rolling stock can be corrected in the simplest possible way in all possible case constellations.
- the determination and the correction should be possible in particular independently of which rollers of the roll stand the total eccentricity is caused to which part.
- an operating method of the type mentioned at the outset is thereby issued - That the rotational position of only the work rolls or only the support rollers of the rolling mill are detected and received by the control device,
- This approach not only compensates for any eccentricity, regardless of whether it is caused by the work rolls or the backup rolls. Rather, it is possible to provide only a portion of the rollers - namely the work rolls or the support rollers - with position encoders and yet to determine the rotational positions derj enigen rollers that have no position encoder, with high accuracy over long periods of rolling operation.
- the rotational positions of these rollers can be determined from the rotational positions of the driven rollers in conjunction with the rolling condition.
- the inventive design the accumulation of a deviation of the rotational position over several revolutions of the rollers can be avoided, however, since with each passing of the eIER reference rotational position by the j whale Wal ze a new synchronization is made possible.
- the roll stand is temporarily be exaggerated ⁇ in a calibration mode in which no flat rolling is rolled by the roll stand.
- the control ⁇ device in calibration it is possible that the control ⁇ device in calibration
- the number at initial rotational positions is greater than 1.
- the number of initial rotational positions is two, then after detecting one course of one of the two sets of rollers relative to the other roller set, the number of initial rotational positions may be rotated by a predetermined rolling length.
- the rolling length may for example correspond to half a revolution of one of the two rolls of the respective set of rolls. Thereafter, the other course is detected.
- the first and second variables of the control device can be predetermined by a higher-level control device or by an operator. For example, when grinding the rolls in a grinding shop, a corresponding determination of the first and second sizes can take place so that they are already known when the rolls are installed in the roll stand.
- the second sizes characterize the eccentricity of the work rolls as a function of the rotational position of the work rolls and - That the control device determines the compensation value in dependence on the rotational position of both the work rolls and the support rollers.
- the support rollers on the one hand and the Häwal zen other each to determine an ex ⁇ zentrizticiansanteil and determine the compensation value of ⁇ hand of the two Exzentrizticiansanteile.
- This simplified procedure can be particularly sufficient if the diameters of the support rollers are equal to one another and the diameters of the work rollers are equal to one another.
- the operating method is therefore designed in such a way that
- the second variables include variables which characterize caused by the upper work roll eccentricity in Ab ⁇ dependence on the rotational position of the upper work roll, and include sizes which caused by the lower work roll eccentricity in depen ⁇ dependence on the rotational position of the lower work roll characterize, and
- control means the compensation value as a function of the j ehyroid rotational position of both the upper and lower work roll and the upper and lower backup roll determined.
- the compensation value has four parts of eccentricity whose sum is equal to the compensation value, namely one eccentricity component each for the upper back-up roll, the lower back-up roll, the upper work roll and the lower work roll.
- the compensation value has four parts of eccentricity whose sum is equal to the compensation value, namely one eccentricity component each for the upper back-up roll, the lower back-up roll, the upper work roll and the lower work roll.
- Characterized kön- NEN particularly in the case that not all rotational positions are detected, but some rotational positions of the errez- th orders are derived, errors are minimized, which otherwise away due to the accumulation of one deviate ⁇ monitoring the rotational position over several revolutions of the rolls would add up.
- the upper and / or lower roll set is rotated such that when rolling the next flat roll stock, a cost function is minimized, into which one passes the sum of the eccentricities of the work rolls and the backup rolls formed total eccentricity, the first zeitli ⁇ che derivation of the total eccentricity and / or the second time derivative of the total eccentricity enter.
- a cost function is minimized, into which one passes the sum of the eccentricities of the work rolls and the backup rolls formed total eccentricity, the first zeitli ⁇ che derivation of the total eccentricity and / or the second time derivative of the total eccentricity enter.
- the procedure according to the invention already leads to excellent results.
- a residual eccentricity may still occur despite the correction of the roll gap setpoint by the calculated compensation value.
- the control device can track the first and second variables based on the residual eccentricity.
- a computer program having the features of claim 10 is configured in that the processing of the computer program by the control device causes the control device to operate the rolling stand in accordance with an operating method according to the invention.
- control device having the features of claim 11.
- the control device is designed such that it operates the rolling stand in accordance with an operating method according to the invention.
- the object is further achieved by a roll stand with the Merk ⁇ paint of claim 12.
- a rolling ⁇ scaffold of the type mentioned is thereby configured such that the roll stand is controlled by an inventive control device.
- FIG. 1 shows a perspective view of a rolling stand
- FIG. 2 shows a side view of the rolling stand of FIG. 1
- FIG. 6 shows associated paths on roller circumferences
- Figure 11 is a measured and an associated modeled Ex ⁇ centricity compared
- FIG 12 associated paths on roller circumferences
- FIG. 13 shows a flowchart.
- Figs 1 and 2 comprises a roll stand on an upper Wal ⁇ zensatz U and a lower set of rolls L.
- the upper roller set U has an upper work roll 1U and an upper backup roll 2U.
- the lower roll set L has a lower work roll IL and a lower backup roll 2L.
- the rolling mill is a flat rolled 3 made of metal ge ⁇ rolls.
- the flat rolling stock 3 may in particular be a heavy plate or a metal strip.
- the rolling stand is controlled by a control device 4.
- the control device 4 is designed such that it operates the roll stand according to an operating method, which is explained in more detail after ⁇ standing.
- the control device 4 is designed as a programmable control device 4.
- the ent ⁇ speaking training of the control device 4 so that it operates the mill stand according to the operating method, effected by a computer program 5, with which the control device 4 is programmed.
- the computer program 5 comprises machine code 6, which can be processed directly by the control device 4.
- the execution of the machine code 6 through the STEU ⁇ er stimulate 4 causes, in this case, the control device 4 operates the rolling stand according to the corresponding operation information model.
- the rolling stand is operated by the control device 4 at least temporarily in a normal operation.
- the rolling of the flat rolled stock 3 takes place in normal operation.
- the whale zgerüst by the control device 4 continues to operate for a while temporarily in a calibration mode.
- no flat rolling stock is rolled by means of the roll stand 3. It is assumed below that the rolling stand is alternatively operated by the control device 4 in normal operation or in calibration operation.
- the control device 4 checks according to FIG 3, first, in a step Sl, whether the rolling mill in normal operation Betrie ⁇ ben is. If the rolling mill is operated in normal operation, the control device 4 checks in step S2, whether currently a rolling stock 3 is rolled. If a rolling stock 3 is currently being rolled, the control device 4 proceeds to steps S3 to S7. In step S3, a set roll gap s * is set. In a step S4, the control device 4 accepts a rotational position cpUB, cpUW, cpLB, cpLW of at least one roller 1U, IL, 2U, 2L of the roll stand.
- step S5 the control inputs determined direction 4 at least one of the ⁇ of the rotational position CPUB, cpUW, cpLB, ⁇ LW a roller 1U, IL, 2U, 2L of the rolling mill depen ⁇ Gigen compensation value.
- the determination is made on the basis of variables RUB, RUW, RLW, RLB, cplUB, cp2UW, cplLB, cp2LW, for a total eccentricity of the rolls 1U, 2U, 2L of the rolling mill as a function of the rotational position cpUB, cpUW, cpLB, cpLW the at least one roller 1U, IL, 2U, 2L of the roll stand are charac ⁇ teristic.
- the sizes RUB, RLB, cplUB, cplLB are first quantities that are characteristic of an eccentricity of the rolling mill support rolls 2U, 2L as a function of a rotational position cpUB, cpUW, cpLB, cpLW of at least one rolling mill 1U, IL, 2U, 2L of the rolling stand.
- the quantities RUW, RLW, cp2UW, cp2LW are second quantities which correspond to an eccentricity of the work rolls 1U, IL as a function of a rotational position cpUB, cpUW, cpLB, cpLW of at least one roll 1U, IL, 2U, 2L of the rolling stand are characteristic.
- the meaning of the first quantities RUB, RLB, cplUB, cplLB and the second quantities RUW, RLW, cp2UW, cp2LW will become clear later.
- step S 6 the control means corrects 4 the roll gap set value S * to the value determined in step S4 Kompensati ⁇ onswert ⁇ .
- step S7 the control device 4 sets a rolling gap s of the roll stand according to the corrected set roll gap value.
- the flat rolled metal 3 with ⁇ means of the rolling mill roll gap according to the corrected target value of an initial thickness to a final thickness Gewal zt.
- step S7 the control device returns to step S1.
- the sequence of steps Sl to S7 is therefore currency ⁇ rend continuously performed rolling of the flat rolled stock 3 of the control inputs direction. 4
- step S8 the controller 4 moves from step S2 to step S8.
- step S8 other measures can be taken ⁇ he later explained in more detail.
- the controller 4 the mill does not operate normally ⁇ operation, there is the mill in calibration operation ⁇ . In this case, the controller proceeds to Schrit ⁇ th S9 to S14.
- the first and second quantities RUB, RUW, RLW, RLB, cplUB, cp2UW, cplLB, cp2LW are determined.
- step S 9 a defined initial rotational position of the upper roller set U and a defined initial rotational position of the lower roller set L of the rolling mill are set.
- the two initial rotational positions can be adjusted so that in FIG 4 shown (only gedank ⁇ Lich existing) points of the upper work roll 1U and the upper backup roll 2U each other directly opposite each other and shown in a manner analogous to in FIG 4 (only existing conceptually dene) points of the lower work roll IL and the lower backup roll 2L are directly opposite each other.
- the rolling stand can be ascended so that the upper work roll 1U and the lower work roll IL do not touch each other.
- the two sets of rollers U, L are rotated independently of each other in their initial initial rotational position.
- rollers 1U, 2U of the upper roller set U are lifted off the rollers IL, 2L of the lower roller set L.
- independent drives 7U, 7L for the two sets of rolls U, L can be present.
- a common drive may be present, which is permanently connected, for example, with the lower set of rollers L, with the upper set of rollers U j edoch via a releasable coupling. In this case, first the upper roller set U in its initial rotational position transferred, then the clutch is released, and it is the lower set of rollers L transferred to its initial ⁇ position. Then the clutch is closed again.
- the control device 4 controls such the rolling mill in the step S10 that the roll gap is CLOSED s ⁇ sen.
- the closing of the roll gap s takes place without the flat rolling stock being in the roll gap s.
- the control device 4 controls the rolling stand in step S11 such that the rolls 1U, IL, 2U, 2L roll against each other.
- the length LO is hereinafter referred to as Er chargedslän ⁇ ge LO.
- the detection length LO starts from the respective initial rotational position of the roller sets U, L. It is particularly dimensioned such that all rollers 1U, IL, 2U, 2L perform several complete revolutions.
- the control device 4 detects in step Sil at the same time over the detection length LO a course of a signal F, s, which is characteristic of a change in the roll gap s.
- the signal F, s is of course dependent on the rotational position cpUB, cpUW, cpLB, cpLW of the at least one roller 1U, IL, 2U, 2L.
- the control device 4 the
- step S12 the controller 4 checks whether it has already performed the Pre 9 ⁇ hens, the step S to Sil for all erforder ⁇ union pairs of initial rotational positions. Only when this is the case, the controller 4 moves to step S14.
- step S12 the control device 4 proceeds from step S12 to step S13.
- step S13 selec ⁇ advantage, the controller 4 the next pair of initial ⁇ rotating positions. From step S13, the controller then returns to step S9.
- the number of other pairs of initial rotational positions and the associated positions as such may be determined as needed. If necessary, the initial rotational position of lower roller set L can be unchanged, while the upper roller set ⁇ is rotated in each case by a predetermined angle of the upper work roll 1U or the upper support roll 2U. The reverse procedure is also possible. It is also possible that both sets of rollers U, L are rotated.
- step S14 the control device 4 uses the detected courses to determine the first and second variables RUB, RUW, RLW, RLB, cplUB, cp2UW, cplLB, cp2LW.
- the basics of this investigation are explained in more detail below.
- FIG. 9 shows - greatly exaggerated - a variation of a radius r of the roller 8 as a function of the rotational position ⁇ of the roller 8 relative to a reference position.
- i rO i rO herein refers to the average (ideal) Radius der Wal ⁇ ze 8. 5ri denotes the fraction of the i-th interference. cpi denotes a phase angle of the i-th perturbation.
- RUB is the eccentricity amplitude of the upper back-up roll 2U
- RUW is the eccentricity amplitude of the upper work roll 1U
- RLW is the eccentricity amplitude of the lower work roll 1U
- Equation 2 eight quantities are unknown, namely the four eccentricity amplitudes RUB, RUW, RLW, RLB and the four phase positions cplUB, cp2UW, cplLB, cp2LW.
- Pair of similar rollers 1U, IL, 2U, 2L - usually the back-up rollers 2U, 2L - in this case, an additional pair of rotary position sensors 9U, 9L required for this.
- the other pair of similar rolls 1U, IL, 2U, 2L - usually the work rolls 1U, IL - is, however, by means of
- the rolling mill drives 7U, 7L generally have internal rotary encoder on. Their signals can be used according to the invention for determining the rotational positions cpUB, cpUW, cpLB, cpLW of the driven rollers 1U, 2U, 2U, 2L.
- the rotational position cpUB, cpLB, cpUW, cpLW of the respective other roller 2U, 2L, 1U, IL of the corresponding set of rollers U, L in this case by the control device 4 on the basis of the rotational position cpUB, cpUW, cpLB, cpLW the enigen roll 1U, IL , 2U, 2L of the corresponding set of rolls U, L, whose rotational position cpUB, cpUW, cpLB, cpLW is detected. This procedure is taken in this case, both in normal operation and in calibration ..
- the rolls 1U, 2U, 2L of the roll stand are rotated counter to the direction of rotation into which the rolls 1U, 2U, 2L are rotated during the rolling of the flat roll 3 rolled last ,
- the rollers 1U, IL, 2U, 2L are therefore turned back.
- Turning back is a possible development of the Schrit- tes S8 third of FIG Accordingly, the rolling mill is operated to the ⁇ sem time in normal operation. The turning back is thus carried out as part of a normal rolling break between the rolling of two flat rolling stock 3.
- the support rollers 2U, 2L reference signal generator 1 OU, 1 OL assigned.
- the reference signal transmitters 1 OU, 1 OL do not detect the rotational position cpUB, cpLB of the support rollers 2U, 2L over the entire angular range of 360 °. However, they always emit a signal (for example a pulse) when the rotational position cpUB, cpLB of the corresponding support roller 2U, 2L corresponds to a predetermined reference rotational position.
- the reference signal generators 1 OU, 1 OL the passing of the reference rotational position is thereby always detected during continuous rotation of the support rollers 2U, 2L.
- the corresponding signals are of course supplied to the control device 4.
- Support rollers 2U, 2L are derived and in each case the passing of a reference rotational position is detected for the work rolls ⁇ 1U, IL.
- the rotational ⁇ positions CPUB, cpLB the support rollers 2U and 2L are independently determined or detected, and also the rotation Stel ⁇ lungs cpUW, cpLW the work rolls 1U, IL can be determined or recorded independently of each other.
- all four rotational positions cpUB, cpUW, cpLB, cpLW are explicitly detected or determined.
- the total eccentricity ⁇ is the sum of the partial eccentricities of the rolls 1U, IL, 2U, 2L.
- the control device 4 determines, depending on the rotational position cpUB, cpUW, cpLB, cpLW of the respective roller 1U, IL, 2U, 2L, of the corresponding roller 1U, IL, 2U , 2L centricity caused Generalex- and adds the eccentric cam parts for Intelex ⁇ centricity.
- control device 4 In order to be able to determine the four partial eccentricities mentioned above, the control device 4 must also know the corresponding characteristic variables RUB, RUW, RLW, RLB, cplUB, cp2UW, cplLB, c2LW. As part of the calibration operation he ⁇ thus averages the control means 4 for the upper Stützwal ⁇ ze 2U the sizes RUB, CPUb which are characteristic for their Operazentriztician.
- the upper work roll 1U and the lower work roll IL j in each case takes place in calibration for the lower support roller 2L He ⁇ averaging of the two for the Generalexzentriztician the j e election roller 2L, 1U, IL characteristic quantities RUW, RLW, RLB, cp2UW, cplLB, cp2LW.
- the radii resp. Diameter of the support rollers 2L, 2U are usually the same size among each other.
- the radii or. Diameter of the work rolls 1U, IL with each other usually the same size.
- Part eccentricities of the back-up rolls 2U, 2L and the work rolls 1U, IL are part eccentricities of the back-up rolls 2U, 2L and the work rolls 1U, IL.
- the sum in this case only has two Summands on, namely one for the partial eccentricity caused by the support rollers 2U, 2L and for the partial eccentricity caused by the work rolls 1U, 2L.
- the control device 4 determines in this case in normal operation in dependence on the rotational position cpUW, cpLW one of the work rolls 1U, IL a part eccentricity for the Häwal ⁇ zen 1U, IL and depending on the rotational position cpUB, cpLB one of the support rollers 2U, 2L a part eccentricity for the back-up rolls 2U, 2L.
- the control device 4 determines the compensation value ⁇ as a function of the rotational position cpUB, cpUW, cpLB, cpLW of both the work rolls 1U, IL and the support rolls 2U, 2L in normal operation. As part of the calibration operation, the control device 4 determines in this case for the two support rollers 2U, 2L uniform variables that are characteristic of the Operaxzentriztician, for example, a Exzentrizticiansamplitude and a phase angle.
- Steps S21 to S23 are one possible embodiment of step S8 of FIG. 1.
- the control device 4 determines a cost function K in step S21.
- K the total eccentricity .epsilon., Weighted by the respective weighting factors .theta. the first time derivation of the total eccentricity ⁇ and / or the second time-dependent derivation of the total eccentricity ⁇ . It is possible that all three weighting factors ⁇ to 2 are different from 0. Alternatively, it is possible that only two of the weighting factors ⁇ to 2 are different from 0. min- However, at least one of the three weighting factors ⁇ to 2 must be different from 0.
- the weighting factors ⁇ to .2 may be fixedly assigned to the control device 4 or determined by a user within the scope of a parameterization. In this case, the control device 4 further determines in step S22 a minimum of the cost function K over a rolled length LI. So it forms the integral
- step S23 the control device 4 then adjusts the rotational positions cpUB, cpUW, cpLB, cpLW of the rollers 1U, IL, 2U, 2L accordingly.
- the control device 4 thus rotates the upper and / or lower roller set U, L in such a way that the cost function K during rolling of the next flat rolling stock 3 is minimized.
- step S23 the Walzge ⁇ skeleton has been closed.
- the two sets of rollers U, L can only be rotated together.
- the rolling stand can be opened.
- the two sets of rollers U, L can be rotated independently.
- FIG 11 shows, purely by way of example a comparison between a measured (M) ⁇ eccentricity and ⁇ an associated modeled (C) eccentricity, so ⁇ a Exzent ⁇ riztician, the reference to the Exzentrizticiansamplituden RUB, RUW, RLW, RLB and phase positions club, cp2UW, cplLB, cp2LW, where the eccentricity amplitudes RUB, RUW, RLW, RLB and phase positions clUB, cp2UW, cplLB, cp2LW were determined on the basis of the measured profile of the eccentricity ⁇ .
- FIG. 12 shows the associated profile of the revolutions of the rolls 1U, 2U, 2U.
- the eccentricities of the rollers 1U, 2U, 2U, 2L are completely compensated. Etc. due to thermal effects, United ⁇ wear. it may happen j edoch that despite the correc- tion of the roll gap set value s * by the determined Kompensati ⁇ onswert ⁇ only incomplete compensation is performed, so that a residual eccentricity sr remains. It is mög ⁇ Lich therefore, that the control device 4 outputs a signal F, Z corresponding to the detected depicting ⁇ lung in FIG 13 during the rolling of the flat rolled product 3 in a step S31 that is characteristic of the Res ⁇ texzentriztician sr.
- This signal F, Z may be, for example, the rolling force F or egg ⁇ NEN front of or behind the rolling stand prevailing in the flat rolling train Z 3.
- a thickness of the flat rolled stock 3 measured on the outlet side of the roll stand can also be used as a signal.
- the control device 4 in a step S32 currently - that is, during the rolling of the flat rolled material 3 - compensate for the residual eccentricity he.
- the control device 4 thus corrects the Wal zspaltSollwert s * not only by the compensation value ⁇ , but in addition to the residual eccentricity he.
- the control device 4 can track the first and second variables RUB, RUW, RLW, RLB, cplUB, cp2UW, cplLB, cp2LW in a step S33.
- the control device 4 the first and second sizes RUB, RLB, cplUB, cplLB, RUW, RLW, cp2UW, cp2LW fully with reference to the residual eccentricity ⁇ ⁇ determined that the amplitudes RUB, RLB, RUW, RLW of the individual eccentricities so initially have the value 0.
- the phase positions cplUB, cplLB, cp2UW, cp2LW are irrelevant in this case.
- first and second quantities RUB, RUW, RLW, RLB, cplUB, cp2UW, cplLB, cp2LW eccentricity amplitudes RUB, RUW, RLW, RLB and phase positions clUB, cp2UW, cplLB, cp2LW were used above.
- the eccentricities of the rollers 1U, IL, 2U, 2L could alter natively but also by amplitudes AUB, BUB, ALB, BLB, AUW, BUW, ALW, BLW of corresponding sine and cosine functions are described. Instead of equation 2, therefore, the following equation 5 could also be assumed.
- ⁇ A UB ⁇ sin ⁇ + BUB ⁇ cos pUB + ALB sin ⁇ . ⁇ + BLB cos ⁇ . ⁇
- the present invention has many advantages.
- all the centrifugal zooms can be determined and compensated. This is true regardless of whether the eccentricities caused by work rolls 1U, IL or 2U support rollers, 2L.
- the roll eccentricities can be determined faster and more accurately.
- the roll eccentricities can be determined even if the rolling mill has, in addition to the work rolls 1U, IL and the support rollers 2U, 2L more rollers, particularly Zvi ⁇ rule the work rolls 1U, IL and the support rollers 2U, 2L disposed intermediate rolls.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16156857.1A EP3210682A1 (de) | 2016-02-23 | 2016-02-23 | Vollständige kompensation von walzenexzentrizitäten |
| PCT/EP2017/052813 WO2017144278A1 (de) | 2016-02-23 | 2017-02-09 | Vollständige kompensation von walzenexzentrizitäten |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3419771A1 true EP3419771A1 (de) | 2019-01-02 |
| EP3419771B1 EP3419771B1 (de) | 2019-05-29 |
| EP3419771B2 EP3419771B2 (de) | 2022-11-30 |
Family
ID=55451005
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16156857.1A Withdrawn EP3210682A1 (de) | 2016-02-23 | 2016-02-23 | Vollständige kompensation von walzenexzentrizitäten |
| EP17704240.5A Active EP3419771B2 (de) | 2016-02-23 | 2017-02-09 | Vollständige kompensation von walzenexzentrizitäten |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16156857.1A Withdrawn EP3210682A1 (de) | 2016-02-23 | 2016-02-23 | Vollständige kompensation von walzenexzentrizitäten |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP3210682A1 (de) |
| CN (1) | CN109070164B (de) |
| WO (1) | WO2017144278A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083907B (zh) * | 2021-03-29 | 2022-07-19 | 广西北港不锈钢有限公司 | 一种不锈钢板材偏心轧制线计算方法 |
| EP4613393A1 (de) | 2024-03-06 | 2025-09-10 | Primetals Technologies Germany GmbH | Walzgerüst mit umfassender kompensation von exzentrizitäten |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1467446A (en) * | 1973-04-10 | 1977-03-16 | Davy Loewy Ltd | Eccentricity correction in a rolling mill |
| US3881335A (en) | 1974-03-07 | 1975-05-06 | Westinghouse Electric Corp | Roll eccentricity correction system and method |
| JPS5877706A (ja) * | 1981-10-30 | 1983-05-11 | Sumitomo Metal Ind Ltd | ロ−ル偏心制御方法 |
| US4580224A (en) * | 1983-08-10 | 1986-04-01 | E. W. Bliss Company, Inc. | Method and system for generating an eccentricity compensation signal for gauge control of position control of a rolling mill |
| JPS63157713A (ja) * | 1986-12-19 | 1988-06-30 | Mitsubishi Heavy Ind Ltd | 圧延機のロ−ル偏心補償装置 |
| GB2253719A (en) * | 1991-03-15 | 1992-09-16 | China Steel Corp Ltd | Compensating roll eccentricity of a rolling mill |
| DE4411313C2 (de) * | 1993-05-08 | 1998-01-15 | Daimler Benz Ag | Verfahren zur Ausfilterung des Exzentrizitätseinflusses beim Walzen |
| JPH07185626A (ja) * | 1993-12-28 | 1995-07-25 | Nippon Steel Corp | 圧延機のロール偏芯除去装置およびロール偏芯除去方法 |
| AT407015B (de) * | 1996-12-04 | 2000-11-27 | Voest Alpine Ind Anlagen | Verfahren zur kompensation der exzentrizität der stütz- und/oder arbeitswalzen in einem duo- oder quarto-walzgerüst |
| JP3328908B2 (ja) * | 1998-04-02 | 2002-09-30 | 三菱電機株式会社 | 圧延機のロール偏心制御装置 |
| JP2002282917A (ja) * | 2001-03-28 | 2002-10-02 | Toshiba Corp | 圧延機の板厚制御装置 |
| JP2003019505A (ja) * | 2001-07-03 | 2003-01-21 | Mitsubishi Electric Corp | 冷間圧延機のロール偏心補償装置 |
| JP4397796B2 (ja) * | 2004-11-22 | 2010-01-13 | 東芝三菱電機産業システム株式会社 | 圧延機のロール偏心制御装置 |
| DE102011078139A1 (de) * | 2011-06-07 | 2012-12-13 | Sms Siemag Ag | Messvorrichtung, Walzgerüst und Verfahren zum Erfassen der Höhe eines Walzspalts |
| EP2662158A1 (de) * | 2012-05-07 | 2013-11-13 | Siemens Aktiengesellschaft | Verfahren zur Bearbeitung von Walzgut und Walzwerk |
| CN103042042B (zh) * | 2013-01-31 | 2014-10-29 | 燕山大学 | 一种基于离散辅助闭环的轧辊偏心补偿方法 |
| CN104815848B (zh) * | 2014-12-19 | 2017-03-29 | 中冶南方(武汉)自动化有限公司 | 基于厚度检测信号及自适应神经网络的轧辊偏心控制方法 |
| CN104923572B (zh) * | 2015-06-25 | 2017-01-11 | 中色科技股份有限公司 | 一种冷轧机上游轧机轧辊偏心补偿的方法 |
-
2016
- 2016-02-23 EP EP16156857.1A patent/EP3210682A1/de not_active Withdrawn
-
2017
- 2017-02-09 CN CN201780013068.5A patent/CN109070164B/zh active Active
- 2017-02-09 EP EP17704240.5A patent/EP3419771B2/de active Active
- 2017-02-09 WO PCT/EP2017/052813 patent/WO2017144278A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN109070164B (zh) | 2021-05-07 |
| EP3210682A1 (de) | 2017-08-30 |
| WO2017144278A1 (de) | 2017-08-31 |
| EP3419771B1 (de) | 2019-05-29 |
| EP3419771B2 (de) | 2022-11-30 |
| CN109070164A (zh) | 2018-12-21 |
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