• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to the field of strip cold rolling, and more particularly to a method for controlling the thickness of strips in a tandem cold rolling mill. A method of performing feed-thickness control in a tandem cold rolling mill involves selecting one or more stands as virtual, indirect, strip grade meters, wherein the stand S1 must be used as a virtual, tape grade, linear meter, calculating the variation in deformation resistance of the strip supplied materials, providing a load cell on the stands selected as the indirect measuring instruments for strip quality, and obtaining the variation of the deformation resistance of the supplied materials of the stand Si by calculation, finally calculating the feed insertion value for each stand. The present invention carries out the feed-thickness control by the indirectly measured deformation resistance of the supplied materials and by measuring the deformation resistance of each strip portion of the supplied materials by the selected stands, the influence of the variation in quality of hot-rolled end products of the supplied materials on the accuracy of the thickness control during cold rolling, and wherein the accuracy of the thickness control is improved, which has an advantageous effect on ensuring the accuracy of the thickness of the end products from the bands in the longitudinal direction of the entire steel coil, wherein the fluctuation of the thickness of the end products from the bands reduced and a stable Rolling is ensured.
    公开号:AT514290A2
    申请号:T9031/2013
    申请日:2013-05-08
    公开日:2014-11-15
    发明作者:Jianghua Xu；Shanqing Li；Peijie Huang；Zhenglian Jiang；Kangjian Wang；Xin Wang；Hongmei Li
    申请人:Baoshan Iron & Steel；
    IPC主号:
    专利说明:

    ···· ··
    16959
    FIELD OF THE INVENTION
    The present invention relates to the field of strip cold rolling, and more particularly relates to a method for controlling the thickness of strips in a tandem cold rolling mill.
    BACKGROUND OF THE INVENTION
    The accuracy of the thickness is one of the most important quality parameters for cold-rolled strips. With the rise and development of industries such as automobiles, aviation, household appliances, precision instruments, civil architecture or cans, strict requirements have been imposed on the thickness of cold rolled strip.
    A tandem cold rolling mill is one of the most complicated and automation-compliant devices that meets the strictest requirements of metallurgical industry accuracy and, to a certain extent, represents the level of technological development in the steel industry. In a tandem cold rolling mill, the thickness feed control plays an important role in ensuring the accuracy of the thickness of cold rolled strip end products. Thickness variation of incoming materials is one of the major causes of thickness variation of cold rolled strip end products. Therefore, the conventional thickness-feed control is carried out in a tandem cold rolling mill by means of the thickness variations of the supplied materials measured directly in front of the stands.
    The complexity of hot rolling process can thus in Güteschwankungen of the supplied materials, d. H. of hot-rolled products. The fluctuation of the supplied materials has a certain degree of regularity. If a strip section with this variation in quality enters the respective stand of the tandem cold rolling mill, new thickness deviations may occur. Therefore, in order to improve the control of the accuracy of the thickness, it is important to research a method of thickness feed control in case of variations in the bands of the tapes. 2/28 2 ····· ··· ········································································
    In the current thickness-feed control by means of the feed rolling mill, the thickness deviations of the feed control materials fed directly in front of the stands Si, S2 and S5 are used. The adjustment mechanisms used for the feed control are hydraulic control systems of the stands Slr S2 and S5, respectively, and the principle of these mechanisms is shown in FIG. The feed control is mainly used to eliminate the immediate deviation, i. that is, when there is a large fluctuation in the material supplied at the entrance of a scaffold, the hydraulic control systems of the scaffold take appropriate action so that the thickness deviations are substantially eliminated before leaving the scaffolding.
    Due to the greater demands of users on the accuracy of the thickness of cold-rolled products and the complexity of hot rolling, it is necessary to take into account the effects of variation in the quality of the feed materials on the thickness variations of the final products. The direct measurement of the quality of feed materials before the tandem cold rolling mill makes it necessary to add measuring instruments. However, common measuring instruments have a low accuracy. In addition, this method makes it necessary to increase the equipment costs and the corresponding maintenance personnel during production.
    SUMMARY OF THE INVENTION
    The object of the present invention is to provide a method for carrying out feed-thickness control in a tandem cold rolling mill, which performs the thickness feed control by means of the indirectly measured deformation resistance of supplied materials. The method avoids the effects of a variation in the quality of fed hot-rolled products on the accuracy of the thickness control during cold rolling, which has a positive effect on ensuring the accuracy of the thickness of finished products from the strip in the longitudinal direction of the entire steel coil, wherein the variation of the thickness of the finished products reduced from the belt and a stable rolling is ensured. 3/28 3 • · • · · · · · · · · · · · · · · · · · · · · · · · «
    • ♦ · · · · t I
    The object of the present invention is achieved such that experiencing to perform a feed-thickness control in a tandem cold rolling mill comprises the following steps:
    Step 1, selecting one or more scaffolds as a virtual, band-grade, indirect measuring device (s), where scaffold 1 must be a virtual, belt-grade, indirect measuring device and a thickness gauge e is provided at the input of FIG .
    Step 2, calculating the amount of fluctuation of the deformation resistance of the supplied materials: Providing a load cell to the stands selected as the indirect measuring instruments for the strip quality, measuring the
    Deviation of the rolling force caused by the fluctuation of the c
    Deformation resistance of the frame 1 is caused by means of the load cell,
    Ak then calculating the magnitude of the variation of the deformation resistance 'c of the material supplied to the framework' according to the following equation 1:
    Ak, = β, (1), where Q is the influence factor of the deformation resistance on the rolling force of the c
    Skeleton, which is an empirical quantity and is determined experimentally,
    Step 3, calculating the feed adjustment value for each stand: calculating the feed adjustment value for each stand according to the following selection, c 1) if the stand 'as the virtual, indirect measuring instrument of c
    Band quality is selected, d. H. the framework 'is provided with a load cell, calculating the feed adjustment value Δ · ^' for the framework ^ according to equation 2:
    Ay. =
    AhjxFj C ", 4/28 (2), 4 ····· ··· ··················································································· wherein the thickness deviation of the belt at the entrance of the scaffold is measured by means of the thickness measuring device. If no thickness measuring device c is provided at the entrance of the scaffold ', the feed adjustment value for c the scaffold' is not calculated. C s pi is the bending stiffness of the framework 'in the longitudinal direction, F s' is the factor influencing the thickness of the band at the entrance of the framework' on c the rolling force of the framework;, which is an empirical size and is determined experimentally. e 2) if the framework 'is not considered the virtual, indirect measuring instrument of c
    Band quality is selected, d. H. the scaffold is not provided with a load cell, then the value of the variation of the deformation resistance of this scaffold
    Al - j It is the value of the nearest preceding scaffold, d. H. * '-1, then calculating the feed adjustment value for the framework ^ according to equation 3:. Ak, x Q, + Ah. x F.
    Ay. = - - s-! l c " (3), where ^ is the thickness deviation of the tape at the entrance of the stand L ^: measured by the thickness gauge. If no thickness gauge is provided at the entrance of the scaffold, then ^. C s pi is the bending stiffness of the framework 'in the longitudinal direction,
    F s 'is the factor influencing the thickness of the tape at the entrance of the stand' on c the rolling force of the stand 1, which is an empirical size and is determined experimentally. 5/28 •································································································································································································ ...
    In sub-step 2) of step 3, if the framework! is not selected as the virtual, c indirect, band-quality meter, d. H. the scaffold! is not provided with a load cell, but with a thickness gauge (1) at the entrance of the scaffold, an influencing factor üi the deformation resistance to be added to the compensation of the thickness feed parameter when the Vorschubeinstellwert of the scaffolding is calculated, then the
    Feed setting value for the frame 5,. is calculated according to equation 4: 4y, = b, x Aktx Qi + Aht x Ft (4),
    h S where Di is the feed weighting factor for the operation of the stand, and Z > = α x Qi (5), r where μi is the factor influencing the deformation resistance of the framework 1 on the compensation of the thickness-feed parameter, which is an empirical quantity and is determined experimentally.
    S S
    Select scaffold 1 and 4 as the virtual, indirect ones
    Band quality measuring instruments or providing a load cell to the framework
    SS SS 1 and 4 or a thickness measuring device at the entrances of the stands 1, 4 c and 5, calculating the variation of the deformation resistance of the supplied S M, = M Ak4 = ^ ·
    Materials of Scaffold 1 according to Equation 1: & , & Finally, calculating the feed adjustment value of the stands ^ 2, * ^ 3, ^ 4 and ^ 5, c 1) if the framework 1 as a virtual, indirect measuring instrument of
    Band quality is selected, calculating the Vorschubeinstellwertes the framework according to the equation 2, y, 'c-, 6/28 6 · ♦ ·· ♦ «·· *** • · · · ♦ ·· ♦ #« «• ♦ ♦ · · · · · · · · · · ·
    S 2) if the framework 2 is not considered a virtual, indirect measuring instrument of the
    Air - Al ·
    Band quality is selected, d. H. 2 1, then calculate the
    Av S Δν
    Feed setting value of the stand 2 according to equation 3,! c ", wherein the thickness deviation of the band at the entrance of the framework ^ 2 is measured by the thickness measuring device, c 3) if the framework 3 is not used as a virtual, indirect measuring instrument of the
    Al · - Al ·
    Band quality is selected, d. H. 3 2, then calculate the Δν S Δν = ^ * a + Mj, xF3
    Feed setting value - ^ 3 of the stand 3 according to the equation 3, c *, c wherein, since the stand 3 is not provided with a thickness gauge at the entrance of the stand, ^ _ applies, so that das, c 4) if the stand 4 as a virtual, indirect meter
    S
    Band quality is selected, since the framework 4 is not provided with a thickness gauge at the entrance of the scaffold, the feed setting value for the c
    Scaffold 4 not calculated, c 5) if scaffold 5 is not considered a virtual, indirect measuring instrument of - hk
    Band quality is selected, d. H. 5 4, then calculating the Δν S1 Δν -Δ *, χ & + ΔΜ ^
    Feed setting value 75 of the stand 5 according to equation 3,! wherein the thickness deviation of the band at the entrance of the framework is measured by means of the thickness measuring device.
    In the present invention, the method of performing feed thickness control in a tandem cold rolling mill performs the feed thickness control by the indirectly measured deformation resistance of the supplied materials, and performs measurement of the deformation resistance of each section of the added tapes by the selected stands and, when the strip is rolled in the downstream direction of the strip running direction, the thicknesses of the strips, taking into account the thickness and the thickness of the strip, are 7/28 7 ·· ···· ·· ···· · · · «· · · · · · · ···································································
    Deformation resistance of the materials supplied controls! * Öa's method avoids the effects of variation in the quality of the supplied hot rolled products on the thickness accuracy during cold rolling and improves the accuracy of the thickness control, which has a positive effect on ensuring the accuracy of the thickness of the finished products from the strip in the longitudinal direction of the entire steel coil, the Fluctuation of the thickness of the end products from the belt is reduced and a stable rolling is ensured.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Figure 1 is a block flow diagram of the method of thickness feed control in a tandem cold rolling mill according to the prior art.
    Figure 2 is a block flow diagram of embodiment 1 of the method of thickness feed control in a tandem cold rolling mill according to the present invention.
    FIG. 3 is a block flow diagram of Embodiment 2 of the thickness feed control method in a tandem cold rolling mill according to the present invention.
    Figure 4 is a block flow diagram of Embodiment 3 of the method of thickness feed control in a tandem cold rolling mill according to the present invention.
    Figure 5 is the block flow diagram of embodiment 4 of the method of thickness feed control in a tandem cold rolling mill according to the present invention.
    In the figures, reference numeral 1 denotes a thickness gauge, and reference numeral 2 denotes a pressure gauge. 8/28 • • • • • • • • • • • • • •
    DETAILED DESCRIPTION OF THE INVENTION
    The present invention will be further described in connection with the following detailed embodiments. It should be understood that these embodiments are only illustrative of the present invention, but not for the purpose of limiting the scope of the invention. Further, it should be understood that a person skilled in the art, after reviewing the description of the present invention, may make any modification or adaptation to the present invention, and that equivalents also fall within the scope of protection defined by the appended claims of the application.
    Embodiment 1
    A method of performing a feed-thickness control in a tandem cold rolling mill includes the following steps:
    Step 1, selecting one or more scaffolds as a virtual (s) band-quality measuring instrument (s), the scaffold 1 having to be a virtual, band-grade, indirect measuring instrument and a thickness measuring device 1 at the entrance of the scaffold 1 provided,
    Step 2, calculating the amount of fluctuation of the deformation resistance of the supplied materials:
    Providing a load cell 2 on the scaffolds selected as the indirect measuring instruments for strip quality, measuring the rolling force deviation
    C by the variation of the deformation resistance of the skeleton > caused by the load cell 2, then calculating the magnitude of the fluctuation of the
    Ir C
    Deformation resistance 1 of the material supplied to the framework 'according to Equation 1: 9/28 9 ····· ··· ························ ·· ·· ···· ···· where Q is the factor influencing the deformation resistance on the rolling force of the c
    Skeleton 1, which is an empirical quantity and is determined experimentally,
    Step 3, calculating the feed adjustment value for each stand: calculating the feed adjustment value Δ ^ 'for each stand S' according to the following selection, c 1) if the stand 'as the virtual, indirect measuring instrument of c
    Band quality is selected, d. H. the framework 'is provided with a load cell 2, calculating the feed adjustment value for the framework Si according to Equation 2: 4v, = Δ / t ,. xFf (2), where ^ is the thickness deviation of the band at the entrance of the framework s * measured with the thickness measuring device 1. If there is no
    C
    Thickness gauge 1 is provided at the entrance of the ', the feed adjustment value Δ ^ is not calculated for the framework ^
    CS pi is the bending stiffness of the framework 'in the longitudinal direction, p' is the influencing factor of the thickness of the band at the entrance of the framework cs' on the rolling force of the framework 1, which is an empirical size and is determined experimentally, c 2) if the framework not as the virtual, indirect meter of c
    Band quality is selected, d. H. the framework < is not provided with a load cell 2, the value of the fluctuation of the deformation resistance of this skeleton is jr js
    Value of the nearest preceding scaffold, d. H. 1 '-1, then
    Calculate the feed adjustment value Δ · ^ 'for the framework ^ according to Equation 3: 10/28 io • · • · • ψ ···· # ** ♦ ··· • * · «« ···. Ak, x Q, + Ah, x F, A.V. i - 1 L 7x r ^ pi where ^ is the thickness deviation of the band at the entrance of the framework ^ measured by means of the thickness measuring device 1. If there is no thickness measuring device 1 at the entrance of the scaffold! is provided, then Δ / ζ. = 0 r (3), C $ pi is the bending stiffness of the framework 'in the longitudinal direction, F.' is the influencing factor of the thickness of the band at the entrance of the framework S 9 f on the rolling force of the framework ', which is an empirical size and determined experimentally.
    In the feed-thickness control method for operating a tandem cold rolling mill, in the present invention, to further improve the accuracy of the thickness control of the tapes in the sub-step 2) c of step 3, if the stand 'is not the virtual, indirect measuring instrument c of FIG Band quality is selected, d. H. when the scaffold 'is not provided with a load cell 2 but with a thickness gauge 1 at the entrance of the scaffold, an influence factor a' of the deformation resistance is added to the compensation of the thickness feed parameter when calculating the feed setting value of the scaffolds, then calculating the feed adjustment value for each stand according to the equation 4:. b, x Ak, x Q, + Ah, x F, - C '(4),
    h S where - is the feed weighting factor for the operation of the stand ', and where a "the factor influencing the deformation resistance of the stand is the compensation of the thickness feed parameter, which is an empirical quantity and is determined experimentally.
    As shown in FIG. 2, the embodiment describes the method of performing feed-thickness control by a thickness control system of a five-stand six-roll mill. In industrial application, the system is divided into a program run area and a data storage area when the PLC control is in operation. The parameters associated with the thickness control algorithm and the band information table are stored in the data storage area. For the c c c
    Output of the feed control of the scaffolds 1 ~ 5 Selection of the scaffold 1 as the virtual, indirect measuring device of the strip quality and providing a c load cell 2 on the scaffold 1 or a thickness measuring device 1 to the
    SS S
    Entrances of the scaffolds x, 4 and 5,
    Calculate the variation of the deformation resistance of the supplied material
    S m, = M of the framework 1 according to equation 1: β, and calculating the
    S S
    Feed setting value of the stands 1 ~ 5 as follows:
    S 1) if the scaffold 1 is selected as a virtual band-width indirect measuring instrument, calculating the screed advance value according to the equation 2, c 2) if the scaffold 2 is not used as a virtual, indirect measuring instrument
    Ak = Ak
    Band quality is selected, d. H. 2 1, then calculate the
    Feed setting value ^ 2 of the skeleton according to Equation 3, 12/28 12 Δy2
    Ak2xQ2 + Ah2xF2 C, p2 s 3) if framework 3 is not considered to be a virtual, indirect measuring instrument of AL · AL ·
    Band quality is selected, d. H. 3 2, then calculate the
    Feed setting value ^ 3 of the stand * ^ 3 according to the equation 3, _M3xg3 + M, x.F3 where, since the stand 3 is not provided with a thickness gauge at the entrance of the stand, ^ _ holds, so that y, ~,
    S 4) if the framework 4 is not considered to be a virtual, indirect measuring instrument of the AL · AL ·
    Band quality is selected, d. H. 4 3, then calculate the
    Feed setting value ^ 4 of the stand ^ 4 according to the equation 3, Δy _Ak4xQ4 + Ah4xF4 s where, since the stand 3 is not equipped with a thickness gauge at the entrance
    Ah = 0 Ay4 = M, Xg > of the scaffold, 4 holds, so that c *,
    S 5) if the framework 5 is not used as a virtual, indirect measuring instrument of the ΛL · AL ·
    Band quality is selected, d. H. 5 4, then calculate the
    Feed setting value of the skeleton according to Equation 3,
    Aks x Qs + Ahs x Fs C 13/28 13 φφ φφ φφφφ φφ ···· φ φ φ φ φ ··· φ • φ φ φφφφ φφφφ # φ φ # φ φ φ φφφΦ φ · #
    Embodiment 2
    A method for performing feed-thickness control in a tandem cold rolling mill is shown in FIG. 3, the difference between Embodiments 2 and 1 being that in Embodiment 2, the stand
    S S 1 and 4 are selected as the virtual, band-quality indirect measuring instruments
    S S are or a load cell 2 on the scaffolds 1 and 4 or a
    SS S
    Thickness measuring device 1 is provided at the entrance of the scaffold 1, 2 and 5, calculating the variation of the deformation resistance of the supplied S m, δα4 = ^
    Materials of scaffold 1 according to Equation 1: a, & , after all
    S S S S S
    Calculating the feed adjustment value of the stands 2, 3, 4 or, c 1) if the stand 1 is selected as a virtual, strip-quality indirect measuring device, calculating the feed setting value of the stand fry-Δ / ί, x Fx according to equation 2, : r '~ c *, c 2) if framework 2 is not considered to be a virtual, indirect measuring instrument of AL · - ΛJr
    Band quality is selected, d. H. 2 1, then calculate the
    Feed setting value Δ · ^ 2 of the stand according to the equation 3, = Mc2xQ2 + Ah2xF2 J2 r * where ^ 2 is the thickness deviation of the tape at the entrance of ^ 2 measured by the thickness gauge 1, c 3) if the stand 3 is not considered a virtual , indirect meter of lr - Λlr
    Band quality is selected, d. H. 3 2, then calculate the
    Feed adjustment value Δ ^ 3 of the frame ^ 3 according to the equation 3, 14/28 14 • · 4v3 = _AkixQ} + AJi ^ xFi
    •'pi
    C where, since the framework 3 does not have a thickness gauge at the entrance
    Ah = Π Δy iK of the framework is provided, ^ holds, so. e 4) if the framework 4 as a virtual, indirect measuring instrument of
    S
    Band quality is selected, since the framework 4 is not provided with a thickness gauge at the entrance of the scaffold, the e
    Feed setting value of the stand 4 not calculated, e 5) if the stand 5 is not used as a virtual, indirect measuring instrument of the AL · ale
    Band quality is selected, d. H. 5 4, then calculate the
    Feed setting value of the stand according to the equation 3, -AkixQi + Ah5xFs S5 / -r where the thickness deviation of the tape at the entrance of the stand measured by the thickness gauge 1 is.
    Embodiment 3
    A method for performing feed-thickness control in a tandem cold rolling mill is shown in Fig. 4, wherein the difference between Embodiments 3 and 1 is that in Embodiment 3, an influence factor of the deformation resistance is added to the compensation of the thickness feed parameter when calculating the feed setting value of the stands: 15/28 15 • · • ··· • · · · ···················································································· ·· e 1) if the framework 2 is not selected as a virtual, band-grade, indirect measuring instrument and a thickness gauge 1 is located at the entrance of the S Ak = Ak framework 2, d. H. 2 ', calculating the feed advance value of the skeleton according to equations 4 and 5, _b2xAk2xQ2 + Ah2xF2 h S where the feed weighting factor for the operation of the skeleton is 2, and, cp2 b0 = a, x - ~ where a2 is the influence factor of the deformation resistance of the skeleton ^ 2 is on the compensation of the thickness-feed parameter, which is an empirical quantity and is determined experimentally, $ 2) if the framework 5 is not selected as a virtual, band-grade, indirect measuring instrument and a thickness gauge 1 at the entrance of the S Ak - Ak framework 5 is arranged, d. H. 5 4, calculating the feed advance value Δ ^ 5 of the skeleton * ^ 5 according to Equation 4, Ay b5xAksxQs + Ah5 * F5 1 C where ° 5 is the feed weighting factor for the operation of the skeleton ° 5, and bs = asx Qs CI 9 where 5 the factor influencing the deformation resistance of the stand 5 is the compensation of the thickness feed parameter, which is an empirical quantity and is determined experimentally. 16/28 16
    • ·
    Embodiment 4
    A method for carrying out feed-thickness control in a tandem cold rolling mill is shown in Fig. 5, wherein the difference between the embodiment 4 and Fig. 2 is that in the embodiment 4, an influence factor of the deformation resistance is added to the compensation of the thickness feed parameter when the feed adjustment value of the stands is calculated: c 1) if the stand 2 is not used as a virtual, indirect measuring instrument
    Ak = Ak
    Band quality is selected, d. H. 2 1 and a thickness gauge 1 is arranged at the entrance of the stand 2, calculating the feed adjustment value Δ · ^ 2 of the stand ^ 2 according to the equation 4, _b2xAk2xQ2 + Ah2xF2
    C h s wherein the feed weighting factor for the operation of the stand is 2, cp2 b7 = and & , where ° 2 is the factor influencing the deformation resistance of the framework * ^ 2 on the compensation of the thickness-feed parameter, which is an empirical quantity and is determined experimentally. c 2) if the framework 5 is not considered as a virtual, indirect measuring instrument of the
    Air - Al ·
    Band quality is selected, d. H. 5 4, and a thickness gauge 1 on
    S is arranged at the entrance of the scaffold 5, calculating the feed setting value Δ · ^ 5 of the scaffold according to equation 4,
    Ays = b5xAksxQ! + Ah5xF5 17/28 17 ··························································································································································································································································· LQi where 5 is the feed weighting factor for the operation of the stand, and b, = a5
    t where 05 is the influence factor of the deformation resistance of the framework on the compensation of the thickness-feed parameter, which is an empirical quantity and is determined experimentally. 18/28
    权利要求:
    Claims (3)
    [1]
    (1) where Q is the factor of influence of deformation resistance on the roll force c of the framework 1, which is an empirical quantity and is determined experimentally. Step 3: Calculate the feed adjustment value for each stand: Calculate the feed adjustment value for each stand according to following selection: 19/28 19 14 ······························································································ ···························································································································· H. the framework 'is provided with a load cell (2), calculating the feed adjustment value für for the framework gemäß according to Equation 2: 4v (= Ahi> .Fi CPi (2), where Δ ^' is the thickness deviation of the band at the entrance of the framework If there is no c thickness gauge (1) provided at the entrance of the scaffold ', the screed feedrate value ^ is not calculated, C s pi is the bending stiffness of the scaffold, in longitudinal direction, F c) the factor influencing the thickness of the tape at the entrance of the framework to C1 is the rolling force of the framework, which is an empirical quantity and is determined experimentally if the framework is not selected as the virtual, band-grade, indirect measuring instrument, ie Framework is not provided with a load cell (2), the value of the variation of the deformation resistance of this framework is that AL · - value of the nearest vo then, calculating the feed advance value for the Si according to Equation 3: Ak, xQ, + Ah, x Fj Ay. = -'--- (3), C ^ Pi where the thickness deviation of the band at the entrance of the scaffold is measured by means of the thickness measuring device (1). If there is no thickness measuring device (1) provided at the entrance of the framework £, then Ak - 0 t 20/28 20 * · 20 * · · · · • ♦ • ♦ * • · ······· # Pt is the bending stiffness of the longitudinal direction, FS 'is the influencing factor of the thickness of the tape at the entrance of the framework' on the.... ' S Rolling force of the framework, which is an empirical quantity and is determined experimentally.
    [2]
    Method for carrying out feed-thickness control in a tandem cold rolling mill according to claim 1, characterized in that in the c sub-step 2) of step 3, if the scaffold 1 is not selected as the virtual, C1-band-quality measuring instrument, d , H. the scaffold 'is not provided with a load cell (2) but is provided with a thickness gauge (1) at the entrance of the scaffold, an influence factor a' of the deformation resistance can be added to the compensation of the thickness feed parameter when the feed adjustment value of the skeleton, then calculating the advancement adjustment value for the skeleton S 'according to equations 4 and 5:, b. x Ak, x Q, + Ah, x F, Av = -! --- S-! L 71 Z " * C '(4), h S where > the feed weighting factor for the operation of the stand 'is b, = a, x ^ and (5), where r is the factor influencing the resistance to deformation of the thickness feedrate parameter, which is an empirical quantity and determined experimentally becomes.
    [3]
    Method for carrying out a feed-thickness control in a tandem cold rolling mill according to claim 1, characterized in that the SS stands 1 and 4 are selected as the virtual, indirect measuring instruments of the 21/28 21 · · · 9 · ο band quality, respectively a load cell (2) is provided on the scaffolds 1 and S c 4 or a thickness measuring device (1) at the entrances of the scaffolds *, SS 4 and 1, calculating the variation of the c deformation resistance of the supplied material of the scaffold 1 according to .. Δ / J AP. ΔΛ, = -L Ak4 = -1 of Equation 1: ö, & finally calculating the feedrate setting of the stands ^ 2, ^ 2, or * ^ 1, S 1) if the stand 1 is selected as a virtual, strip-quality, indirect measuring device, calculating the feed setting value of the stand according to Δ Ah, xF, of the equation 2, 1 c- > , 2) if the scaffold ° 2 is not selected as a lr Air Band quality virtual, indirect measuring instrument, d. H. 2 ', then calculating the feed advance value ^ 2 of the stand according to the equation 3, Δ *, wherein the thickness deviation of the tape at the entrance of the stand ^ 2 is measured by the thickness gauge (1), feed set value Δ ^ 2 of the stand according to the equation 3 , Av, AkixQ3 + M3xF3 where, since the framework is not provided with a thickness gauge at the entrance of the framework, ΔΑ3 = 0, so that a *, * e3 c 4) if the framework 3 is a virtual, band-grade, indirect measuring instrument C is selected, since the scaffold 3 is not provided with a thickness gauge at the entrance of the scaffold, the feed setting value of Fig. 3 is not calculated, 22/28 1 strip grade is selected; H. 3 2, then computing 2 if framework 2 is not considered a virtual, indirect measuring instrument of 3 KL · AIr 22 if the framework is not a virtual, indirect measuring instrument of Jr-Al · Band quality is selected, d. H. 5 4, then calculating the AksxQ5 + 6h5xF5 CBS feed adjustment value des of the stand according to the equation 3, Δλ = where ΔΑ5 is the thickness deviation of the tape at the entrance of the stand measured by the thickness gauge (1). Patent Attorney Dipl.-4ng.Mag. Michael Babeluk ΑΊ150 Vienna, Mariahilfer GQrtei 3t / 17 Tel. (* 431) 892 89 33-0 Fax: («431)« 92 M 333 e-mail; patentObaboruicat 23/28
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    同族专利:
    公开号 | 公开日
    US20150094843A1|2015-04-02|
    CN103418618A|2013-12-04|
    JP2015503449A|2015-02-02|
    KR20140077193A|2014-06-23|
    WO2013174213A1|2013-11-28|
    AT514290A5|2015-05-15|
    AT514290B1|2015-08-15|
    US9623459B2|2017-04-18|
    CN103418618B|2015-05-20|
    JP5972395B2|2016-08-17|
    DE112013000350T5|2014-11-13|
    KR101617375B1|2016-05-02|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN201210161787.0A|CN103418618B|2012-05-23|2012-05-23|Performance feed-forward thickness control method for continuous cold rolling mill|
    PCT/CN2013/075316|WO2013174213A1|2012-05-23|2013-05-08|Feedforward thickness control method for performance of cold rolling mill|
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