CN101623708B - Plate-shape control integrated system and executing method thereof - Google Patents

Abstract

The invention provides an integrated method of a plate-shape control system of a plate-strip cold and hot continuous rolling machine. The plate-shape control system comprises a rolled piece plastic-distortion module, a roller-system elastic-distortion module, a rolled piece and roller temperature field module, a roller-system abrasion module, a flatness well-recognition module, a plate-shaped mode recognition module, a plate-shape standard curve module and a plate-shape control module. The invention integrates all modules according to internal relations, can solve a plurality of plate-shape control problems comprehensively and optimally, adopts a set of calculating flows in actual application and effects saves the labor time.

Description

Plate-shape control integrated system and manner of execution

Technical field

The present invention relates to a kind of analysis and control technology of plate strip rolling process, the manner of execution of particularly a kind of plate-shape control integrated system and this integrated system.

Background technology

Strip is the major product of steel and iron industry, and " elaboration " overwhelming majority in the steel products belongs to the strip product.Strip is than being the important symbol of weighing a national metallurgical industry level.The strip of advanced country in the world reaches 65-70% than at present, exceeds China more than 20%, so the strip of China is produced the space of developing on a large scale very much in addition.Plate shape is the important quality index of strip material, and plate shape control technology is the core technology of strip-mill strip.Existing strip-mill strip tens covers of China, plate shape control technology integral level is compared backward relatively with international most advanced level.The bottleneck that restraining plate shape control technology improves is that with crucial the research of plat control system lags behind the development of technology, lacks advanced and applicable plat control system.

People have carried out a large amount of theoretical researches to the every field that the control of plate shape relates at present.For example: " the stream ready-to-eat type noodle method of simulation board rolling 3 D deformation " (" mechanical engineering journal " 2003,39 the 7th phases of volume: 94-100) plastic deformation is studied to the plate strip rolling process rolled piece; " exploitation of four-high mill roll strain parsing module " (" steel rolling " 2003,20 the 2nd phases of volume: 8-11) roll elastic deformation is studied; " simulation of Temperature in the hot continuous rolling process " (" steel research journal " 2006,18 the 8th phases of volume: 32-34) the rolled piece temperature field is studied; " 1700 continuous hot-rolling mill roller temperature fields and hot convexity research " (" Northeastern University's journal " natural science edition, 2008,29 the 4th phases of volume: 517-520) breaker roll temperature field and thermal deformation are studied; (" iron and steel " 2002,37 the 3rd phases of volume: 24-27) wearing and tearing of pair roller system are studied " researchs of 2050 CVC continuous hot-rolling mill mm finishing mill unit roll wears "; " analysis of cold-rolled strip steel shape discrimination model and discussion " (" iron and steel " 1995,30 the 8th phases of volume: 39-43) good differentiation is studied to glacing flatness; " 6 roller cold continuous rolling types based on plate shape control ability are selected " (" Zhongnan Polytechnic Univ's journal " English edition, 2007,14 the 2nd phases of volume: 278-284) rolled piece plastic deformation, roll elastic deformation have been carried out Coupling Research.

In general, at present the disclosed document individual module that is confined to the control of plate shape is related to or to the Coupling Research of several modules about comprehensive collective method of plat control system, is not also seen relevant report in the document of publishing.Thereby can only analyze and solve simple relatively plate shape problem, can not comprehensively, optimally analyze and solve highly difficult plate shape problem.Set control problem such as plate shape; The general at present method that adopts is to carry out rolled piece plastic deformation module and roll elastic deformation module integrated; Be optimized calculating according to a certain target then, this method generally can be dealt with problems to a certain extent, but can not obtain optimal solution.This is owing to do not consider roll hot-rolling type and roll wear roll shape during computation optimization; The consequence that causes is: machine initial setting control effect is better on the roll; Along with constantly carrying out of the operation of rolling; The comprehensive roll shape of roll constantly changes, and causes production practices and perfect condition to depart from gradually, and the effect of initial plate shape setup parameter is variation gradually just also.Thereby have only each module that the control of plate shape is related to carry out comprehensive integration, and form complete plat control system, could optimally solve the various plate shape control problems that run in the production practices comprehensively.

Summary of the invention

In order to solve the problems of the technologies described above; The present invention provides a kind of plate-shape control integrated system and manner of execution; This system and method can be comprehensively, optimum, solve various common plate shape control problems easily; Form the plurality of plate-shape control technology, specifically comprise: analysis of plate shape control performance and type selection technology, roll shape optimisation technique, plate shape are set control technology, plate shape FEEDFORWARD CONTROL technology, plate shape feedback control technology.

The technical scheme that the present invention adopted is: a kind of plate-shape control integrated system, and this system comprises 8 modules that are mutually related:

Rolled piece plastic deformation module, roll elastic deformation module, rolled piece and roller temperature field module, roller system wearing and tearing module, the good discrimination module of glacing flatness, plate shape pattern recognition module, plate-shape standard curve module, plate shape control module; Wherein,

Said rolled piece plastic deformation module is that roll elastic deformation module and roll wear module provide the draught pressure cross direction profiles, distributes for the good discrimination module of glacing flatness and plate shape pattern recognition module provide flatness and lateral;

Said roll elastic deformation module is that rolled piece plastic deformation module and plate shape pattern recognition module provide band steel exports thickness cross direction profiles, for the roll wear module provides the roll gap pressure cross direction profiles;

Said rolled piece and roller temperature field module are that the calculating of resistance of deformation in the rolled piece plastic deformation module provides the deformed area mean temperature, for the calculating of work roll thermal roll shape in the roll elastic deformation module provides the working roll temperature field;

Said roll wear module is that the calculating of comprehensive roll shape in the roll elastic deformation module provides the roll wear roll shape;

The local integrated formation plate-shape standard curve module of good discrimination module of said glacing flatness and rolled piece plastic deformation module;

Said plate shape control module is calculated plate shape control device regulated quantity according to the output result of plate shape pattern recognition module.

Said rolled piece plastic deformation module adopts bar unit method.According to rolling condition; Consider the lateral flow of rolled piece; Set up deformed area Three-dimensional Flow velocity field, strain field, stress field; Confirm the cross direction profiles of draught pressure and outlet glacing flatness, for roll elastic deformation module, roller system wearing and tearing module, the good discrimination module of glacing flatness and plate shape pattern recognition module provide design conditions.Specifically can be divided into streamline bar unit method, stream ready-to-eat type noodle method, the bar unit calculus of variations again.Wherein streamline bar unit method is applicable to cold rolling calculated off line, and stream ready-to-eat type noodle method is applicable to the hot rolling calculated off line, and bar unit calculus of variations computational speed is very fast, is applicable in line computation.Adopt Mathematical Modeling to represent as follows:

X _i＝f ₁₁(σ _si，μ _i，h _i-1，h _i，B，T _i-1，T _i) (1a)

X _i＝f ₁₂(σ _si，μ _i，h _i-1，h _i，B，T _i-1，T _i) (1b)

X _i＝f ₁₃(σ _si，μ _i，h _i-1，h _i，B，T _i-1，T _i) (1c)

X _i＝(σ _1i，σ _0i，p _i) (1d)

Wherein, i is frame number (i=1～n), f ₁₁Be streamline bar unit method computing formula, f ₁₂Be stream ready-to-eat type noodle method computing formula, f ₁₃Be bar unit calculus of variations computing formula, σ _1i, σ _0iBe respectively the forward and backward tensile stress cross direction profiles of i frame value, p _iBe i frame draught pressure cross direction profiles value, σ _SiBe i frame band steel average deformation drag, μ _iBe i frame coefficient of friction, h _I-1, h _iBe respectively that i frame band steel is gone into, exit thickness cross direction profiles value, B is band steel supplied materials width, T _i, T _I-1Be respectively the forward and backward tension force of i frame;

Each frame band steel average deformation drag σ _SiBy steel grade, drafts, mill speed and the decision of deformed area band mean temperature, adopt Mathematical Modeling to represent as follows:

σ _si＝f ₁₄(s _s，h _i-1，h _i，v ₀，h ₀，T _swi) (1e)

Wherein, f ₁₄Be resistance of deformation computing formula, s _sBe steel grade, v ₀Be the first frame porch window of web velocities, T _SwiBe deformed area band ensemble average temperature.

Said roll elastic deformation module adopts influence coefficient method.Calculate amount of deflection, the flattening amount of roll according to Elasticity, finally define and carry a roll gap shape (rolled piece exit thickness cross direction profiles value) and a roll gap pressure cross direction profiles value, for rolled piece plastic deformation module and roller system wearing and tearing module provide design conditions.This method can comprise various types common in the present production practices: normal four-roller milling train, CVC series rolling mill, HC series rolling mill and PC milling train carry out analytical calculation.Adopt Mathematical Modeling to represent as follows:

Y _i＝f ₂₁(L _wi，L _mi，L _bi，L _1i，L _2i，L _3i，D _wi，D _mi，D _bi，D _bni，C _wi，C _mi，C _bi，S _1i，S _2i，RS _wi，RS _mi，Tilt _i，p _i，h _i)(2a)

Z _i＝f ₂₂(L _wi，L _bi，L _1i，L _3i，D _wi，D _bi，D _bni，C _wi，C _bi，S _1i，RS _wi，Tilt _i，θ _i，p _i，h _i) (2b)

Y _i＝(h _i，q _wmi，q _mbi) (2c)

Z _i＝(h _i，q _wbi) (2d)

C _wi＝C _wgi+C _wti-W _wi (2e)

C _mi＝C _mgi-W _mi (2f)

C _bi＝C _bgi-W _bi (2g)

Wherein, i is frame number (i=1～n), f ₂₁Be six-high cluster mill roll elastic deformation computing formula, f ₂₂Be four-high mill roll elastic deformation computing formula, q _WmiBe i frame working roll and intermediate calender rolls roll gap pressure cross direction profiles, q _MbiBe i frame intermediate calender rolls and backing roll roll gap pressure cross direction profiles, q _WbiBe i frame working roll and backing roll roll gap pressure cross direction profiles, L _WiBe i frame working roll barrel length, L _MiBe i frame intermediate calender rolls barrel length, L _BiBe i frame support roller barrel length, L _1iBe i frame work roll bending cylinder spacing, L _2iBe i frame intermediate calender rolls roller cylinder spacing, L _3iBe i frame depress oil cylinder centre-to-centre spacing, D _WiBe i frame work roll diameter, D _MiBe i frame intermediate calender rolls diameter, D _BiBe i frame support roller diameter, D _BniBe i frame support roller roll neck diameter, C _WiBe the comprehensive roll shape of i frame working roll, C _WgiBe the original grinding roll shape of i frame working roll, C _WtiBe i frame work roll thermal roll shape, W _WiBe i frame working roller abrasion roll shape, C _MiBe the comprehensive roll shape of i frame intermediate calender rolls, C _MgiBe the original grinding roll shape of i frame intermediate calender rolls, W _MiBe i frame intermediate calender rolls wearing and tearing roll shapes, C _BiBe the comprehensive roll shape of i frame support roller, C _BgiBe the original grinding roll shape of i frame support roller, W _BiBe i frame support roller wearing and tearing roll shapes, S _1iBe i frame work roll bending power, S _2iBe i frame intermediate calender rolls bending roller force, RS _WiBe i frame working roll roll shifting amount, RS _MiBe i frame intermediate roll shifting amount, Tilt _iBe the i frame roller amount of inclining, θ _iBe the i breast roller angle of the crossing, h _iIt is i frame band steel exports average thickness;

Roll hot-rolling type in the formula (2e) can calculate according to iron Mo Xinke formula, adopts Mathematical Modeling to represent as follows:

$C_{\mathrm{wti}}^j=f_{23}(T_{\mathrm{wi}}^j,T_{\mathrm{wi}},D_{\mathrm{wi}})---\left(2h\right)$

Wherein, f ₂₃Be iron Mo Xinke formula, C _Wti ^jI frame work roll thermal roll shape during for rolling j+1 winding steel, T _WiBe temperature field during machine on the i frame working roll, T _Wi ^jI frame working roll temperature field during for rolling j+1 winding steel.

Said rolled piece and roller temperature field module adopt finite difference calculus.According to heat transfer principle, because length of rolled piece, is therefore ignored the heat conduction on the length of rolled piece direction, the rolled piece temperature field of adopting the two-dimensional finite calculus of finite differences to calculate rolling district and non-rolling district than rolled piece width and the big several magnitude of rolled piece thickness.Finally confirm each frame rolling deformation district band ensemble average temperature T through integration method _Swi, average surface temperature T _Ssi, outlet band transverse temperature distribution curve T _{Δ i}, for rolled piece plastic deformation module (1) provides design conditions.Adopt Mathematical Modeling to represent as follows:

T＝f ₃₁(T _s，v ₀，B，h ₀，…，h _n，μ ₁，…，μ _n，σ _s1，…，σ _sn，T _ws1，…，T _wsn，T _c1，…，T _cn，T _a，U)(x＞0) (3a)

T＝f ₃₂(T _s，v ₀，B，h ₀，…，h _n，μ ₁，…，μ _n，σ _s1，…，σ _sn，T _ws1，…，T _wsn，T _c1，…，T _cn，T _a，V)(x＞0) (3b)

U＝(L _M12，…，L _M(n-1)n) (3c)

V＝(L _M12，…，L _M(n-1)n，L _T0，L _T1，…，L _Tn，L _C0，L _C1，…，L _Cn，Bu ₁，…，Bu _n) (3d)

Wherein, T is the belt steel temperature field, f ₃₁Be divided into cold continuous rolling rolled piece temperature field computing formula, f ₃₂Be continuous hot-rolling mill rolled piece temperature field computing formula, T _s(y z) is the two-dimensional temperature field of x=0 place rolled piece, v ₀Be supplied materials speed, B is the supplied materials width, h ₀～h _nBe band steel supplied materials average thickness and each frame outlet average thickness, μ ₁～μ _nBe each frame coefficient of friction, σ _S1～σ _SnBe each frame deformation of rolled wire drag, T _Ws1～T _WsnBe each breast roller average surface temperature, T _C1～T _CnBe each frame cooling water or emulsion temperature, T _aBe air themperature, L _M12～L _{M (n-1) n}Be frame spacing, L _T0Be De-scaling box center to the first frame central spacing, L _T1～L _TnThe water-cooled node is to this frame central spacing, L after each frame _C0For spraying, De-scaling box covers siding-to-siding block length, L _C1～L _CnThe water-cooled node sprays and covers siding-to-siding block length, Bu after each frame ₁～Bu _nFor describing the state variable that whether the water-cooled node sprays water after each frame ( value 0 or 1 is got 0 expression and do not existed or do not spray water, and gets the normal water spray of 1 expression);

When high-speed rolling; Work roll surface alternately contacts with rolled piece, air, cooling water (or emulsion) and intermediate calender rolls (or backing roll); The revolution lap time is very short; Only on working roll superficial layer as thin as a wafer along the circumferential direction temperature have significant change, and roll circumferential direction inside direction variations in temperature is minimum, can it be summed up as a Dynamic Two-dimensional heat conduction problem.For the working roll of every frame, all set up local coordinate system as shown in Figure 4, adopt finite difference calculus to calculate the roller temperature field, represent as follows:

$\left\{\begin{array}{c}{T}_{\mathrm{wi}}^j=f_{41}(T_{\mathrm{wi}}^{j-1},{\stackrel{\&OverBar;}{T}}_{\mathrm{ssi}}^j,t_r^j,t_p^j)\\ {\mathrm{<figure-callout\; id="0"\; label="T\; wi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">T</figure-callout>}}_{\mathrm{wi}}^{}=T_{\mathrm{wi}}\end{array}\right.---\left(4\right)$

Wherein, i is that (i=1～n), j is rolling coil of strip number to the frame number, T _Wi ^jBe the intact back of j winding steel rolling t _p ^jMoment i frame working roll temperature field, t _r ^j, t _p ^jBeing respectively the pure of rolling j winding steel rolls the time and rolls back intermittent time, T _WiTemperature during machine on the i frame working roll, T _Ssi ^jEach frame rolling deformation district strip surface mean temperature during for rolling j winding steel.

Said roller is that the wearing and tearing module obtains according to tribology principle.Promptly between two objects wear extent with normal pressure and wearing and tearing distance each other are directly proportional each other.Adopt Mathematical Modeling to represent as follows:

$\left\{\begin{array}{c}{W}_{\mathrm{wi}}^j=f_{51w}(W_{\mathrm{wi}}^{j-1},L_s^j,h_0^j,h_i^j,p_i^j,q_{\mathrm{wmi}}^j)\\ {\mathrm{<figure-callout\; id="0"\; label="W\; wi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">W</figure-callout>}}_{\mathrm{wi}}^{}=0\end{array}\right.---\left(5a\right)$

$\left\{\begin{array}{c}{W}_{\mathrm{mi}}^j=f_{51m}(W_{\mathrm{mi}}^{j-1},L_s^j,h_0^j,h_i^j,q_{\mathrm{wmi}}^j,q_{\mathrm{mbi}}^j)\\ {\mathrm{<figure-callout\; id="0"\; label="W\; mi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">W</figure-callout>}}_{\mathrm{mi}}^{}=0\end{array}\right.---\left(5b\right)$

$\left\{\begin{array}{c}{W}_{\mathrm{bi}}^j=f_{51b}(W_{\mathrm{bi}}^{j-1},L_s^j,h_0^j,h_i^j,q_{\mathrm{mbi}}^j)\\ {\mathrm{<figure-callout\; id="0"\; label="W\; bi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">W</figure-callout>}}_{\mathrm{bi}}^{}=0\end{array}\right.---\left(5c\right)$

$\left\{\begin{array}{c}{W}_{\mathrm{wi}}^j=f_{52w}(W_{\mathrm{wi}}^{j-1},L_s^j,h_0^j,h_i^j,p_i^j,q_{\mathrm{wbi}}^j)\\ {\mathrm{<figure-callout\; id="0"\; label="W\; wi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">W</figure-callout>}}_{\mathrm{wi}}^{}=0\end{array}\right.---\left(5d\right)$

$\left\{\begin{array}{c}{W}_{\mathrm{bi}}^j=f_{52b}(W_{\mathrm{bi}}^{j-1},L_s^j,h_0^j,h_i^j,q_{\mathrm{wbi}}^j)\\ {\mathrm{<figure-callout\; id="0"\; label="W\; bi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">W</figure-callout>}}_{\mathrm{bi}}^{}=0\end{array}\right.---\left(5e\right)$

Wherein, i is that (i=1～n), j is rolling coil of strip number to the frame number, f _51wBe six-high cluster mill working roll roll wear computing formula, f _51mBe six-high cluster mill intermediate calender rolls roll wear computing formula, f _51bBe six-high cluster mill backing roll roll wear computing formula, f _52wBe four-high mill working roller abrasion computing formula, f _52bBe four-high mill backing roll roll wear computing formula, W _Wi ^jBe the intact back of j winding steel rolling i frame working roller abrasion roll shape, W _Mi ^jBe the intact back of j winding steel rolling i frame intermediate calender rolls wearing and tearing roll shapes, W _Bi ^jBe the intact back of j winding steel rolling i frame support roller wearing and tearing roll shapes, L _s ^jBe j winding steel supplied materials length.

The good discrimination module of said glacing flatness adopts the differentiation factorization method of cutting apart based on bar unit.The band steel exports flatness and lateral that calculates according to rolled piece plastic deformation module distributes, and adopts a plate shape to differentiate the factor and judges plate shape quality, need not the certain unstability pattern of hypothesis before plate shape is differentiated, and has simplified computational methods.Adopt Mathematical Modeling to represent as follows:

ξ _i＝f ₆(B，h _i，σ _1i) (6)

Wherein, i is frame number (i=1～n), f ₆Be the differentiation factorization method of cutting apart based on bar unit, ξ _iI frame band steel exports glacing flatness is differentiated the factor, ξ _iThe band steel was straight in＞1 o'clock, ξ _iThe band steel was in critical instability status, ξ in=1 o'clock _i＜1 o'clock band steel unstability.

Said plate shape pattern recognition module adopts the least square method based on Legnedre polynomial.This method distributes according to the plate shape of rolling back band steel, it is carried out pattern classification, so that the flatness defect of different mode is taked the Different control measure.Adopt Mathematical Modeling to represent as follows:

A _i＝f ₇(σ _1i) (7a)

E _i＝f ₇(h _i) (7b)

A _i＝(a _1i，a _2i，a _3i，a _4i) (7c)

E _i＝(e _1i，e _2i，e _3i，e _4i) (7d)

Wherein, i is frame number (i=1～n), f ₇Be the least square method based on Legnedre polynomial, a _1i～a _4iBe respectively the i frame and export strip profile and flatness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues, e _1i～e _4iBe respectively the i frame and export belt steel thickness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues.

Said plate-shape standard curve module adopts Mathematical Modeling to represent as follows:

$\stackrel{\&OverBar;}{\mathrm{\&Gamma;}}=f_8({\mathrm{\&sigma;}}_{1n}^{\mathrm{ob}},h_n^{\mathrm{ob}},B,{\mathrm{<figure-callout\; id="0"\; label="h"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">h</figure-callout>}}_0,{\stackrel{\&OverBar;}{h}}_0,{\stackrel{\&OverBar;}{h}}_1,\&CenterDot;\&CenterDot;\&CenterDot;,{\stackrel{\&OverBar;}{h}}_n)$

$\stackrel{\&OverBar;}{H}=f_8({\mathrm{\&sigma;}}_{1n}^{\mathrm{ob}},h_n^{\mathrm{ob}},B,{\mathrm{<figure-callout\; id="0"\; label="h"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">h</figure-callout>}}_0,{\stackrel{\&OverBar;}{h}}_0,{\stackrel{\&OverBar;}{h}}_1,\&CenterDot;\&CenterDot;\&CenterDot;,{\stackrel{\&OverBar;}{h}}_n)$

$\stackrel{\&OverBar;}{\mathrm{\&Gamma;}}=({\mathrm{\&sigma;}}_{11}^{\mathrm{ob}},{\mathrm{\&sigma;}}_{12}^{\mathrm{ob}},\&CenterDot;\&CenterDot;\&CenterDot;{\mathrm{\&sigma;}}_{1n}^{\mathrm{ob}})$

$\stackrel{\&OverBar;}{H}=({\mathrm{<figure-callout\; id="1"\; label="h"\; filenames="H2009100750825E00011.png,H2009100750825E00021.png"\; state="\{\{state\}\}">h</figure-callout>}}_1^{\mathrm{ob}},{\mathrm{<figure-callout\; id="2"\; label="h"\; filenames="H2009100750825E00011.png,H2009100750825E00021.png"\; state="\{\{state\}\}">h</figure-callout>}}_2^{\mathrm{ob}},\&CenterDot;\&CenterDot;\&CenterDot;h_n^{\mathrm{ob}})$

Wherein, f ₈Be quantitative resolution method, σ _1n ^ObBe the tandem mill end frame outlet band target glacing flatness curve of industrial requirements decision, h _n ^ObThe tandem mill end frame outlet band target thickness cross direction profiles curve of industrial requirements decision, σ ₁₁ ^Ob～σ _1n ^ObBe respectively each frame export goal glacing flatness curve, h ₁ ^Ob～h _n ^ObBe respectively each frame export goal thickness cross direction profiles curve.

Said plate shape control module adopts the influence matrix method.This method connects each time plate shape component and various plate shape control device through plate shape gating matrix; Only need during practical application each component of degree n n of plate shape deviation that detection obtains multiply by plate shape control influence matrix; Can obtain optimum plate shape control device regulated quantity; The conventional searching algorithm of computational accuracy and computational speed all is significantly improved, and adopts Mathematical Modeling to represent as follows:

K _n＝f ₉₁(Δa _1n，Δa _2n，Δa _3n，Δa _4n) (9a)

K _i＝f ₉₂(Δe ₁₀，Δe ₂₀，Δe ₃₀，Δe ₄₀)(i＝1～n) (9b)

K _i＝f ₉₃(Δe ₁₀，Δe ₂₀，Δe ₃₀，Δe ₄₀)(i＝1～n) (9c)

Wherein, f ₉₁Be the plate shape control device compensation rate computing formula that last frame outlet actual measurement glacing flatness and target glacing flatness deviation cause, f ₉₂For guaranteeing that each frame exports actual glacing flatness curve and equals under the prerequisite of target glacing flatness curve; Front section actual measurement thickness cross direction profiles worked as by supplied materials and the supplied materials head is surveyed each frame plate shape control device compensation rate computing formula that thickness cross direction profiles deviation causes; Be applicable to cold continuous rolling, f ₉₃For guaranteeing that the actual exit thickness cross direction profiles of each frame equals under the prerequisite of target thickness cross direction profiles; Front section actual measurement thickness cross direction profiles worked as by supplied materials and the supplied materials head is surveyed each frame plate shape control device compensation rate computing formula that thickness cross direction profiles deviation causes; Be applicable to continuous hot-rolling mill, Δ a _1n, Δ a _2n, Δ a _3n, Δ a _4nBe respectively last frame outlet poor when front section actual measurement glacing flatness curve 1 time, 2 times, 3 times, 4 sub-eigenvalues and target glacing flatness curve 1 time, 2 times, 3 times, 4 sub-eigenvalues, Δ e ₁₀, Δ e ₂₀, Δ e ₃₀, Δ e ₄₀Be respectively supplied materials poor when front section actual measurement thickness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues and band steel toe portion actual measurement thickness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues, K _iBe all plate shape control device regulated quantity matrixes of i frame.

A kind of manner of execution of plate-shape control integrated system, this method comprise following computer step:

Step 1) is set up the tandem mill coordinate system;

Step 2) confirm the use object of plate-shape control integrated system, the definition integer variable:

{con1，con2 _i(i＝1，2，…，n)，con3，con4，con5}，

Wherein, n is a tandem mill frame number, through this n+4 of initialization variable, confirms the use object of plate-shape control integrated system;

Step 3) is collected relevant rolling equipment and technological parameter;

Step 4) is when con4=1 and con1=3; Perhaps when con4=2 and con1=3; Perhaps when con4=3 and con1=3; Calculate the belt steel temperature field according to rolled piece and roller temperature field module, and calculate each stand stretch district average deformation drag according to rolled piece plastic deformation module simultaneously, otherwise execution in step 5);

Step 5) perhaps when con4=2, is coupled to rolled piece plastic deformation module and roll elastic deformation module when con4=1, finds the solution each frame outlet glacing flatness, thickness and draught pressure cross direction profiles, otherwise execution in step 6);

Step 6) is calculated each frame target glacing flatness curve σ according to the plate-shape standard curve module when con4=3 _1i ^Obj(i=1～n) and target thickness cross direction profiles curve h _i ^Obj(i=1～n), otherwise execution in step 7);

Step 7) is carried out optimizing to each frame plate shape control device and is calculated when con4=3, obtains each frame plate shape setup parameter, otherwise execution in step 8);

Step 8) is calculated rolling each the frame work roll thermal roll shape of back that finishes of current volume according to rolled piece and roller temperature field module when con4=3, calculate rolling each the frame working roller abrasion roll shape of back that finishes of current volume according to roller system wearing and tearing module, otherwise execution in step 9);

Step 9) is when con4=1; Perhaps when con4=4; Perhaps when con4=5, glacing flatness or thickness cross direction profiles curve are carried out pattern-recognition, calculate each frame plate shape control device regulated quantity matrix K according to plate shape control module according to plate shape pattern recognition module _i ^j(i=1～n), otherwise execution in step 10);

Step 10) superposes rolling each frame hot-rolling type of back, roll wear roll shape and the original grinding roll shape of roll of finishing of current volume when con4=3.

It is specific as follows to set up the tandem mill coordinate system described in the said method in the step 1):

Set up like Fig. 2 and coordinate system shown in Figure 3 for tandem mill, n represents tandem mill frame sum among the figure.Should be noted that what provide among Fig. 2 and Fig. 3 is the coordinate-system sketch map of four-high mill, but the present invention and be not limited to four-high mill, the coordinate-system of six-high cluster mill is similarly.The length of rolled piece direction is elected to be the x axle, and the rolled piece width is elected to be the y axle, and the rolled piece short transverse is elected to be the z axle, and the origin of coordinates is chosen milling train width center at the y axle before the x axle is chosen tandem mill first rolling mill inlet, choose the rolled piece mid-depth at the z axle.

Step 2 described in the said method) the use object in comprises:

1a) be applied to hot continuous rolling when line computation, make con1=3, con3=2,

Be applied to cold continuous rolling when line computation, make con1=3, con3=1,

When being applied to the hot continuous rolling off-line analysis, make con1=2, con3=2,

When being applied to the cold continuous rolling off-line analysis, make con1=1, con3=1;

When 1b) being applied to six-high cluster mill, make con2 _i=1, i=1～n, n are the frame numbers,

When being applied to four-high mill, make con2 _i=2, i=1～n, n are the frame numbers;

When 1c) being applied to control performance analysis of plate shape and type selection technology, make con4=1,

When being applied to the roll shape optimisation technique, make con4=2,

When being applied to plate shape setting control technology, make con4=3,

When being applied to plate shape FEEDFORWARD CONTROL technology, make con4=4,

When being applied to plate shape feedback control technology, make con4=5.

Relevant rolling equipment of collection described in the said method in the step 3) and technological parameter may further comprise the steps:

Step 2a) when con4=1, perhaps when con4=2, perhaps when con4=3, collect the rolling equipment relevant parameter, comprising: each frame working roll barrel length L _Wi, each frame work roll diameter D _Wi, con2 _i=1 frame intermediate calender rolls barrel length L _Mi, con2 _i=1 frame intermediate calender rolls diameter D _Mi, each frame support roller barrel length L _Bi, each frame support roller diameter D _Bi, each frame support roller roll neck diameter D _Bni, each frame work roll bending cylinder spacing L _1i, con2 _i=1 frame intermediate calender rolls roller cylinder spacing L _2i, each frame depress oil cylinder centre-to-centre spacing L _3i, the original grinding roll shape of each frame working roll C _Wgi, con2 _iThe original grinding roll shape of=1 frame intermediate calender rolls C _Mgi, the original grinding roll shape of each frame support roller C _Bgi, otherwise execution in step 2b);

Step 2b) when con4=1 and con1=3, perhaps when con4=2 and con1=3, perhaps when con4=3 and con1=3, collect the rolling equipment relevant parameter, comprising: each frame working roll is initially gone up the machine temperature T _Wi, each frame cooling water or emulsion temperature T _Ci, air themperature T _a, frame spacing L _{Mi (i+1)}, otherwise execution in step 2c);

Step 2c) when con4=1 and con1=3 and con3=2; Perhaps when con4=2 and con1=3 and con3=2; Perhaps when con4=3 and con1=3 and con3=2, collect the rolling equipment relevant parameter, comprising: De-scaling box center to the first frame central spacing L _T0, the water-cooled node is to this frame central spacing L after each frame _Ti, De-scaling box sprays length L between the area of coverage _C0, the water-cooled node sprays length L between the area of coverage after each frame _Ci, otherwise execution in step 2d);

Step 2d) when con4=1, perhaps when con4=2, collect strip steel related process parameter, comprising: supplied materials width set-point B, supplied materials average thickness set-point h ₀, each stand stretch drag set-point σ _Si ^Set, supplied materials thickness cross direction profiles set-point h ₀, each frame outlet average thickness set-point h _i, first frame inlet given tension value T ₀, each frame outlet given tension value T _i, each frame coefficient of friction set-point μ _i, each frame work roll bending power set-point S _1i, con2 _i=1 frame intermediate calender rolls bending roller force set-point S _2i, each frame working roll roll shifting amount set-point RS _Wi, con2 _i=1 frame intermediate roll shifting amount set-point RS _Mi, each frame roller amount set-point Tilt that inclines _i, con2 _i=2 breast roller angle of the crossing set-point θ _i, otherwise execution in step 2e);

Step 2e) when con4=3, collect strip steel related process parameter, comprising: current winding steel steel reel number j, supplied materials steel grade s _s ^j, the width measured value B ^j, supplied materials average thickness measured value h ₀ ^j, supplied materials length measured value L _s ^j, each stand stretch drag setting value σ _Si ^Setj, supplied materials head thickness cross direction profiles measured value h ₀ ^Hej, supplied materials temperature measured value T _s ^j, supplied materials speed measured value v ₀ ^j, the pure time measured value t that rolls _r ^j, roll the back intermittent time measured value t _p ^j, each frame outlet average thickness setting value h _i ^j, first frame inlet tension force setting value T ₀ ^j, each frame outlet tension force setting value T _i ^j, each frame coefficient of friction setting value μ _i ^j, each frame work roll bending power upper and lower limit S _1i ^Max, S _1i ^Min, con2 _i=1 frame intermediate calender rolls bending roller force upper and lower limit S _1i ^Max, S _1i ^Min, each frame working roll roll shifting amount setting value upper and lower limit RS _Wi ^Max, RS _Wi ^Min, con2 _i=1 frame intermediate roll shifting amount upper and lower limit RS _Mi ^Max, RS _Mi ^Min, con2 _i=2 breast roller angle of the crossing upper and lower limit θ _i ^Max, θ _i ^Min, the last frame export goal flatness and lateral distribution σ of industrial requirements decision _1n ^Obj, the last frame export goal thickness cross direction profiles h of industrial requirements decision _n ^Obj, otherwise execution in step 2f);

Step 2f) when con4=3 and con3=2, collect strip steel related process parameter, comprising: the state variable Bu that whether the water-cooled node sprays water after current each frame of winding steel _i ^j, otherwise execution in step 2g);

Step 2g) when con4=3, order ${\mathrm{Tilt}}_i^j=0,(i=1~n),$ T _Wsi=T _Wi(i=1～n), C _Wi=C _Wgi(i=1～n), C _Bi=C _Bgi(i=1～n), ${\mathrm{<figure-callout\; id="0"\; label="T\; Wi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">T</figure-callout>}}_{\mathrm{Wi}}^{}=T_{\mathrm{Wi}},(i=1~n),$ ${\mathrm{<figure-callout\; id="0"\; label="W\; Wi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">W</figure-callout>}}_{\mathrm{Wi}}^{}=0,(i=1~n),$ ${\mathrm{<figure-callout\; id="0"\; label="W\; Bi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">W</figure-callout>}}_{\mathrm{Bi}}^{}=0,(i=1~n);$ As con4=3 and con2 _i, make C at=1 o'clock _Mi=C _Mgi(i=1～n), ${\mathrm{<figure-callout\; id="0"\; label="W\; Mi"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">W</figure-callout>}}_{\mathrm{Mi}}^{}=0,(i=1~n),$ Otherwise execution in step 2h);

Step 2h) when con4=4, collecting belt steel supplied materials head thickness cross direction profiles measured value h ₀ ^Hej, the current section thickness of band steel supplied materials cross direction profiles measured value h ₀ ^Cuj, otherwise execution in step 2i);

Step 2i) when con4=5, collects the band steel end frame export goal flatness and lateral distribution σ of industrial requirements decision _1n ^Obi, the frame outlet of band steel end is as front section flatness and lateral distribution measured value σ _1n ^Cuj

Described in the said method in the step 4) when con4=1 and con1=3; Perhaps when con4=2 and con1=3; Perhaps when con4=3 and con1=3; Calculate the belt steel temperature field according to rolled piece and roller temperature field module, and may further comprise the steps according to each stand stretch district average deformation drag of rolled piece plastic deformation module calculating simultaneously:

Step 3a) order ${\mathrm{\&sigma;}}_{\mathrm{Si}}^j={\mathrm{\&sigma;}}_{\mathrm{Si}}^{\mathrm{Setj}},(i=1~n);$

Step 3b) when con3=1, with T _s ^j, v ₀ ^j, B ^j, h ₀ ^j～h _n ^j, μ ₁ ^j～μ _n ^j, σ _S1 ^j～σ _Sn ^j, T _Ws1～T _Wsn, T _C1～T _Cn, T _a, L _M12～L _{M (n-1) n}As input parameter, can obtain T according to rolled piece and roller temperature field module ^jWhen con3=2, with T _s ^j, v ₀ ^j, B ^j, h ₀ ^j～h _n ^j, μ ₁ ^j～μ _n ^j, σ _S1 ^j～σ _Sn ^j, T _Ws1～T _Wsn, T _C1～T _Cn, T _a, L _M12～L _{M (n-1) n}, L _T0～L _Tn, L _C0～L _Cn, Bu ₁～Bu _nAs input parameter, can obtain T according to rolled piece and roller temperature field module ^jThrough to T ^jIntegration can obtain each frame rolling deformation district rolled piece mean temperature T _Swi ^j

Step 3c) with s _s ^j, h _I-1 ^j(i=1～n), h _i ^j(i=1～n), v ₀ ^j, h ₀, T _Swi ^jAs input parameter, can obtain the new average deformation drag value σ of each frame according to rolled piece plastic deformation module _Si' ^j, calculate ${\mathrm{\&epsiv;}}_{1i}=|{\mathrm{\&sigma;}}_{\mathrm{Si}}^{\&prime;j}-{\mathrm{\&sigma;}}_{\mathrm{Si}}^j|/{\mathrm{\&sigma;}}_{\mathrm{Si}}^j,(i=1~n);$

Step 3d) judges ε ₁₁～ε _1nWhether all smaller or equal to given in advance little value ε ₁If, ε ₁₁～ε _1nAll smaller or equal to ε ₁, obtain final σ _S1 ^j～σ _Sn ^j, and according to T at this moment ^jEach frame rolling deformation district rolled piece average surface temperature T of integral and calculating _Ssi ^j, calculate and finish; If ε ₁₁～ε _1nNot all smaller or equal to ε ₁, order ${\mathrm{\&sigma;}}_{\mathrm{Si}}^j={\mathrm{\&sigma;}}_{\mathrm{Si}}^{\&prime;j},(i=1~n),$ Repeating step 3b), step 3c), step 3d), up to ε ₁₁～ε _1nAll smaller or equal to ε ₁Till.

Described in the said method in the step 5) when con4=1, perhaps when con4=2, rolled piece plastic deformation module and roll elastic deformation module are coupled, find the solution each frame outlet glacing flatness, thickness and draught pressure cross direction profiles and may further comprise the steps:

Step 4a) supposes i frame exit thickness cross direction profiles $h_i^j={\stackrel{\&OverBar;}{h}}_i^j{h}_{i-1}^j/{\stackrel{\&OverBar;}{h}}_{i-1}^j.$

Step 4b) with σ _Si ^j, μ _i ^j, h _I-1 ^j, h _i ^j, B ^j, T _I-1 ^j, T _i ^jAs input parameter, try to achieve σ according to rolled piece plastic deformation module _1i ^j, p _i ^j

Step 4c) works as con2 _i=1 o'clock, with L _Wi, L _Mi, L _Bi, L _1i, L _2i, L _3i, D _Wi, D _Mi, D _Bi, D _Bni, C _Wi, C _Mi, C _Bi, S _1i ^j, S _2i ^j, RS _Wi ^j, RS _Mi ^j, Tilt _i ^j, p _i ^j, h _i ^jAs input parameter, try to achieve new h according to the roll elastic deformation module _i' ^jAnd the q corresponding with it _Wmi ^j, q _Mbi ^j, work as con2 _i=2 o'clock, with L _Wi, L _Bi, L _1i, L _3i, D _Wi, D _Bi, D _Bni, C _Wi, C _Bi, S _1i ^j, RS _Wi ^j, Tilt _i ^j, θ _i, p _i ^j, h _i ^jAs input parameter, try to achieve new h according to the roll elastic deformation module _i' ^jAnd the q corresponding with it _Wbi ^j, calculate ${\mathrm{\&epsiv;}}_i={\&Integral;}_{-B^j/2}^{B^j/2}|h_i^{\&prime;j}-h_i^j|/\left(B{\stackrel{\&OverBar;}{h}}_i^j\right)\mathrm{Dy}.$

Step 4d) judges ε _iWhether smaller or equal to given in advance little value ε, if ε _i≤ε obtains final σ _1i ^j, h _i ^j, p _i ^jAnd the q corresponding with it _Wmi ^j, q _Mbi ^jOr q _Wbi ^jIf, ε _i＞ε, order $h_i^j=(1-\mathrm{\&alpha;})h_i^j+\mathrm{\&alpha;}{h}_i^{\&prime;j}$ (wherein α is a relaxation factor, 0＜α≤0.1), repeating step 4b), step 4c), step 4d), up to ε _iTill≤the ε.

Described in the said method in the step 6) when con4=3, calculate each frame target glacing flatness curve σ according to the plate-shape standard curve module _1i ^Obj(i=1～n) and target thickness cross direction profiles curve h _i ^Obj(i=1～n) may further comprise the steps:

Step 5a) makes i=1;

Step 5b) sets i frame target glacing flatness curve and target thickness cross direction profiles curvilinear equation;

Each frame target glacing flatness curvilinear equation is:

${\mathrm{\&sigma;}}_{1i}^{\mathrm{obj}}\left(y\right)=a_0+a_2{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="H2009100750825E00011.png,H2009100750825E00021.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+a_4{\mathrm{<figure-callout\; id="4"\; label="y"\; filenames="H2009100750825E00011.png"\; state="\{\{state\}\}">y</figure-callout>}}^4$

Y in the formula---band steel horizontal relative coordinate, to another side, y from-1 to+1 from one side of band steel; a ₀, a ₂, a ₄---fitting coefficient;

Each frame target thickness cross direction profiles curvilinear equation:

$h_i^{\mathrm{obj}}\left(y\right)={\mathrm{<figure-callout\; id="0"\; label="b"\; filenames="H2009100750825E00021.png"\; state="\{\{state\}\}">b</figure-callout>}}_0+b_2{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="H2009100750825E00011.png,H2009100750825E00021.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+b_4{\mathrm{<figure-callout\; id="4"\; label="y"\; filenames="H2009100750825E00011.png"\; state="\{\{state\}\}">y</figure-callout>}}^4$

B in the formula ₀, b ₂, b ₄---fitting coefficient.

Step 5c) if i is less than or equal to n-1, changes step 5d over to).Otherwise, change step 5f over to);

Step 5d) makes a ₄=0, adopt the given unknowm coefficient a of certain optimized Algorithm ₂, with B, h _i, σ _1i ^ObjAs input parameter, try to achieve plate shape according to the good discrimination module of glacing flatness and differentiate factor ξ _i, the condition of convergence is for making ξ _iThe convergence setting value judges whether to satisfy the condition of convergence, as satisfies the condition of convergence as far as possible, obtains i passage target glacing flatness curve standard value, is designated as σ _i ^*(y), as not satisfying the condition of convergence, repeated execution of steps 5d), till satisfying the condition of convergence;

Step 5e) adopts the given h of certain optimized Algorithm _i ^ObjUnknowm coefficient b ₂, b ₄, with σ _Si ^Set, μ _i, h _I-1 ^Obj, h _i ^Obj, B, T _I-1, T _iAs input parameter, try to achieve σ according to rolled piece plastic deformation module _1i ^Obj(preceding tensile stress cross direction profiles σ _1iInhomogeneous composition), the condition of convergence is for making σ _1i ^Obj(preceding tensile stress cross direction profiles σ _1iInhomogeneous composition) convergence i passage target glacing flatness curve standard value σ as far as possible _i ^*(y), judge whether to satisfy the condition of convergence, as satisfy the condition of convergence, obtain i passage target glacing flatness curve σ _1i ^ObjWith target thickness cross direction profiles curve h _i ^Obj, as not satisfying the condition of convergence, repeated execution of steps 5e), till satisfying the condition of convergence;

Step 5f) according to back step operation two unknowm coefficient a is set in the specific (special) requirements of plate shape ₂, a ₄, obtain n passage target glacing flatness curve σ _1n ^Obj

Step 5g) adopts the given h of certain optimized Algorithm _n ^ObjUnknowm coefficient b ₂, b ₄, with σ _Sn ^Set, μ _n, h _N-1 ^Obj, h _n ^Obj, B, T _N-1, T _nAs input parameter, try to achieve σ according to rolled piece plastic deformation module _1n ^Obj(preceding tensile stress cross direction profiles σ _1nInhomogeneous composition), the condition of convergence is for making σ _1n ^Obj(preceding tensile stress cross direction profiles σ _1nInhomogeneous composition) convergence n passage target glacing flatness curve σ as far as possible _1n ^Obj, judge whether to satisfy the condition of convergence, as satisfy the condition of convergence, obtain n passage target glacing flatness curve σ _1n ^ObjWith target thickness cross direction profiles curve h _n ^Obj, as not satisfying the condition of convergence, repeated execution of steps 5g), till satisfying the condition of convergence;

Step 5h) make i=i+1, change step 5b over to), up to i=n.

Described in the said method in the step 7) when con4=3, each frame plate shape control device is carried out optimizing calculates, obtain each frame plate shape setup parameter and may further comprise the steps:

Step 6a) makes i=1;

Step 6b) when con4=3 and con3=1; Exporting actual glacing flatness curve with each frame, to equal target glacing flatness curve be target; When con4=3 and con3=2; Equaling target thickness cross direction profiles curve with each frame outlet actual (real) thickness cross direction profiles curve is target, adopts optimized Algorithm given one group of concrete parameter in the upper and lower scope of plate shape control parameter, specifically comprises: each frame work roll bending power S _1i ^j, each frame working roll roll shifting amount RS _Wi ^j, con2 _i=1 frame intermediate calender rolls bending roller force set-point S _2i ^j, con2 _i=1 frame intermediate roll shifting amount RS _Mi ^j, con2 _i=2 breast roller angle of the crossing set-point θ _i, change step 6c over to).

Step 6c) supposes i frame exit thickness cross direction profiles $h_i^j={\stackrel{\&OverBar;}{h}}_i^j{h}_{i-1}^j/{\stackrel{\&OverBar;}{h}}_{i-1}^j.$

Step 6d) with σ _Si ^j, μ _i ^j, h _I-1 ^j, h _i ^j, B ^j, T _I-1 ^j, T _i ^jAs input parameter, try to achieve σ according to rolled piece plastic deformation module _1i ^j, p _i ^j

Step 6e) works as con2 _i=1 o'clock, with L _Wi, L _Mi, L _Bi, L _1i, L _2i, L _3i, D _Wi, D _Mi, D _Bi, D _Bni, C _Wi, C _Mi, C _Bi, S _1i ^j, S _2i ^j, RS _Wi ^j, RS _Mi ^j, Tilt _i ^j, p _i ^j, h _i ^jAs input parameter, try to achieve new h according to the roll elastic deformation module _i' ^jAnd the q corresponding with it _Wmi ^j, q _Mbi ^j, work as con2 _i=2 o'clock, with L _Wi, L _Bi, L _1i, L _3i, D _Wi, D _Bi, D _Bni, C _Wi, C _Bi, S _1i ^j, RS _Wi ^j, Tilt _i ^j, θ _i, p _i ^j, h _i ^jAs input parameter, try to achieve new h according to the roll elastic deformation module _i' ^jAnd the q corresponding with it _Wbi ^j, calculate ${\mathrm{\&epsiv;}}_{2i}={\&Integral;}_{-B^j/2}^{B^j/2}|h_i^{\&prime;j}-h_i^j|/\left(B{\stackrel{\&OverBar;}{h}}_i^j\right)\mathrm{Dy}.$

Step 6f) judges ε _2iWhether smaller or equal to given in advance little value ε ₂If, ε _2i≤ε ₂, obtain final h _i ^j, p _i ^jAnd the q corresponding with it _Wmi ^j, q _Mbi ^jOr q _Wbi ^j, change step 6g over to), if ε _2i＞ε ₂, order $h_i^j=(1-\mathrm{\&alpha;})h_i^j+\mathrm{\&alpha;}{h}_i^{\&prime;j}$ (wherein α is a relaxation factor, 0＜α≤0.1), repeating step 6d), step 6e), step 6f), up to ε _2i≤ε ₂Till.

Step 6g) when con4=3, judges whether to satisfy the computation optimization condition of convergence.As satisfy the condition of convergence, write down the optimum plate shape of current winding steel i frame setup parameter, change step 6h over to); As do not satisfy the condition of convergence, repeating step 6b)～step 6g), till satisfying.

Step 6h) judge whether i=n,, change step 6b over to if i ≠ n makes i=i+1), up to i=n.

Described in the said method in the step 8) when con4=3, calculate rolling each the frame work roll thermal roll shape of back that finishes of current volume according to rolled piece and roller temperature field module, calculate rolling each the frame working roller abrasion roll shape of back that finishes of current volume according to roller system wearing and tearing module; May further comprise the steps:

Step 7a) makes i=1;

Step 7b) with T _Wi ^J-1, T _Ssi ^j, t _r ^j, t _p ^j, D _WiAs input parameter, try to achieve T by rolled piece and roller temperature field module _Wi ^j

Step 7c) with T _Wi ^j, T _Wi, D _WiAs input parameter, try to achieve C by the roll elastic deformation module _Wti ^j

Step 7d) judge whether i equals n,, change step 7b over to if i ≠ n makes i=i+1), if i=n changes step 7e over to);

Step 7e) makes i=1;

Step 7f) works as con2 _i=1 o'clock, with W _Wi ^J-1, W _Mi ^J-1, W _Bi ^J-1, L _s ^j, h ₀ ^j, h _i ^j, p _i ^j, q _Wmi ^j, q _Mbi ^jAs input parameter, try to achieve W by roller system wearing and tearing module _Wi ^j, W _Mi ^j, W _Bi ^j, work as con2 _i=2 o'clock, with W _Wi ^J-1, W _Bi ^J-1, L _s ^j, h ₀ ^j, h _i ^j, p _i ^j, q _Wbi ^jAs input parameter, try to achieve W by roller system wearing and tearing module _Wi ^j, W _Bi ^j

Step 7g) judge whether i equals n,, change step 7f over to if i ≠ n makes i=i+1), up to i=n.

Described in the said method in the step 9) when con4=1; Perhaps when con4=4; Perhaps when con4=5, glacing flatness or thickness cross direction profiles curve are carried out pattern-recognition, calculate each frame plate shape control device regulated quantity matrix K according to plate shape control module according to plate shape pattern recognition module _i ^j(i=1～n) may further comprise the steps:

Step 8a) when con4=1, make i=1, otherwise execution in step 8b);

Step 8b) when con4=1, with σ _1i ^jAs input parameter, try to achieve a by plate shape pattern recognition module _1i ^j, a _2i ^j, a _3i ^j, a _4i ^j, with h _i ^jAs input parameter, try to achieve e by plate shape pattern recognition module _1i ^j, e _2i ^j, e _3i ^j, e _4i ^j, otherwise execution in step 8c);

Step 8c) judge when con4=1 whether i equals n,, change step 8b over to if i ≠ n makes i=i+1), up to i=n, otherwise execution in step 8d);

Step 8d) when con4=4, respectively with h ₀ ^Cuj, h ₀ ^HejAs input parameter, try to achieve e by formula plate shape pattern recognition module ₁₀ ^Cuj, e ₂₀ ^Cuj, e ₃₀ ^Cuj, e ₄₀ ^CujWith e ₁₀ ^Hej, e ₂₀ ^Hej, e ₃₀ ^Hej, e ₄₀ ^Hej, and calculate the deviation delta e of corresponding sub-eigenvalue ₁₀ ^j, Δ e ₂₀ ^j, Δ e ₃₀ ^j, Δ e ₄₀ ^j, otherwise execution in step 8e);

Step 8e) when con4=4 and con3=1, with Δ e ₁₀ ^j, Δ e ₂₀ ^j, Δ e ₃₀ ^j, Δ e ₄₀ ^j, as input parameter, try to achieve each frame plate shape control device regulated quantity matrix K by plate shape control module _i ^j(i=1～n); When con4=4 and con3=2, with Δ e ₁₀ ^j, Δ e ₂₀ ^j, Δ e ₃₀ ^j, Δ e ₄₀ ^j, as input parameter, try to achieve each frame plate shape control device regulated quantity matrix K by plate shape control module _i ^j(i=1～n), otherwise execution in step 8f);

Step 8f) when con4=5, respectively with σ _1n ^Cuj, σ _1n ^ObjAs input parameter, try to achieve a by plate shape pattern recognition module _1n ^Cuj, a _2n ^Cuj, a _3n ^Cuj, a _4n ^CujWith a _1n ^Obj, a _2n ^Obj, a _3n ^Obj, a _4n ^Obj, and calculate the deviation delta a of corresponding sub-eigenvalue _1n ^j, Δ a _2n ^j, Δ a _3n ^j, Δ a _4n ^j, otherwise execution in step 8g);

Step 8g) when con4=5, with Δ a _1n ^j, Δ a _2n ^j, Δ a _3n ^j, Δ a _4n ^jAs input parameter, try to achieve last frame plate shape control device regulated quantity matrix K by plate shape control module _n ^j

Described in the said method in the step 10) when con4=3, rolling back each frame hot-rolling type, roll wear roll shape and the original grinding roll shape of roll of finishing of current volume superposeed according to following mode:

Work as con2 _i=1 o'clock, order $C_{\mathrm{Wi}}=C_{\mathrm{Wgi}}+C_{\mathrm{Wti}}^j-W_{\mathrm{Wi}}^j,$ $C_{\mathrm{Mi}}=C_{\mathrm{Mgi}}-W_{\mathrm{Mi}}^j,$ $C_{\mathrm{Bi}}=C_{\mathrm{Bgi}}-W_{\mathrm{Bi}}^j;$

Work as con2 _i=2 o'clock, order $C_{\mathrm{Wi}}=C_{\mathrm{Wgi}}+C_{\mathrm{Wti}}^j-W_{\mathrm{Wi}}^j,$ $C_{\mathrm{Bi}}=C_{\mathrm{Bgi}}-W_{\mathrm{Bi}}^j$

The invention has the beneficial effects as follows: plat control system is divided into 8 modules that are mutually related; Each module is accomplished an independently function; And for the calculating of correlation module provides input parameter, according to the internal relation of 8 modules carry out integrated after, can form the plurality of plate-shape control technology; Comprise: analysis of plate shape control performance and type selection technology, roll shape optimisation technique, plate shape are set control technology, plate shape FEEDFORWARD CONTROL technology, plate shape feedback control technology; Only need adopt a cover calculation process during Practical Calculation, just can be comprehensively, optimum, solve plurality of plate-shape control problem easily, saved working time effectively.

Description of drawings

Fig. 1 is each module correlation figure of plat control system;

The global coordinate system x-z floor map that Fig. 2 adopts for the present invention;

The global coordinate system x-y floor map that Fig. 3 adopts for the present invention;

Fig. 4 is the local coordinate system sketch map that working roll temperature field module adopts.

Among Fig. 1,1 is rolled piece plastic deformation module, and 2 is the roll elastic deformation module; 3 is rolled piece and roller temperature field module, and 4 are roller system wearing and tearing module, and 5 is the good discrimination module of glacing flatness; 6 is plate shape pattern recognition module, and 7 is the plate-shape standard curve module, and 8 is plate shape control module.

The specific embodiment

First embodiment

The explanation of this example how to adopt the present invention to carry out the control performance analysis of plate shape and type is selected.At first given concrete type clearly need carry out the concrete plate shape control device that plate shape control performance is analyzed.With the complete four roller CVC continuous hot-rolling mills of six frames is example, the plate shape control performance of analytical work roller bending roller force.

The 1st step, execution in step 1), set up the tandem mill coordinate system;

The 2nd step, execution in step 2), the back con1=2 that is finished, con2 _i=2 (i=1～6), con3=2, con4=1;

The 3rd step, execution in step 3), collect relevant input parameter;

In the 4th step, because con1=2, step 4) is skipped automatically, execution in step 5), rolled piece plastic deformation module 1 and roll elastic deformation module 2 are coupled, obtain each frame outlet glacing flatness, thickness cross direction profiles σ _1i(i=1～6), h _i(i=1～6);

In the 5th step, because con4=1, step 6), step 7), step 8) are skipped automatically, execution in step 9), obtain the characteristic value a that each frame exports glacing flatness, thickness cross direction profiles according to plate shape pattern recognition module 6 _1i ^j, a _2i ^j, a _3i ^j, a _4i ^jWith e _1i ^j, e _2i ^j, e _3i ^j, e _4i ^j

The 6th step; Repeatedly given as required different operating roller bending roller force; Repeat～the 5 step of the 4th step, can obtain the complete four roller CVC continuous hot-rolling mill work roll bending power control performances of this six frame, analyze the control performance of other plate shape control device like need; Like working roll roll shifting amount, the roller amount of inclining, computational process similarly.

When being used for the type selection; Can import the device parameter of various alternative types; Successively the various plate shape of various types control device is carried out the analysis of plate shape control performance, finally can obtain the overall plate shape control ability of various types, thereby select to provide foundation for type.

Second embodiment

With the full normal four-roller continuous hot-rolling mill of six frames (no work roll bending function) is example, explains that how adopting the present invention that some old milling train that lacks plate shape control device is carried out with plate shape optimum is the backing roll roll shape optimal design of target.Grinding roller efficient is improved for simplifying the grinding roller process management in general production scene, hopes that each frame support roller adopts identical roll shape.Therefore, the unified following formula that adopts of the original grinding roll shape of each frame is represented: C _Bgi(y)=c ₂(2y/L _Bi) ²+ c ₄(2y/L _Bi) ⁴+ c ₆(2y/L _Bi) ⁶(i=1～6), wherein, C _BgiThe original grinding roll shape of each frame support roller, L _BiFor each frame support roller body of roll long, c ₂, c ₄, c ₆Backing roll roll shape characteristic parameter.The target of roll shape optimization is decided to be seeks optimum c ₂, c ₄, c ₆, make ${\mathrm{<figure-callout\; id="2"\; label="F"\; filenames="H2009100750825E00011.png,H2009100750825E00021.png"\; state="\{\{state\}\}">F</figure-callout>}}_2={\&Integral;}_{-B/2}^{B/2}|{\mathrm{\&sigma;}}_{16}^{\mathrm{Ob}}-{\mathrm{\&sigma;}}_{16}|/B$ Minimum.Below provide concrete computational process:

In the 1st step, adopt the given one group of backing roll roll shape characteristic parameter c of certain optimized Algorithm ₂, c ₄, c ₆

The 2nd step, execution in step 1), set up the tandem mill coordinate system;

The 3rd step, execution in step 2), the back con1=2 that is finished, con2 _i=2 (i=1～6), con3=2, con4=2;

The 4th step, execution in step 3), collect relevant input parameter;

In the 5th step, because con1=2, step 4) is skipped automatically, execution in step 5), rolled piece plastic deformation module (1) and roll elastic deformation module 2 are coupled, obtain each frame outlet glacing flatness, thickness cross direction profiles σ _1i(i=1～6), h _i(i=1～6);

In the 6th step, judge whether to satisfy the computation optimization condition of convergence.As satisfy the condition of convergence, and calculate and finish, as not satisfying the condition of convergence, returned for the 1st step to repeat, till satisfying.

The 3rd embodiment

With the full UCM cold continuous rolling of five frames is example, and how the explanation of this example adopts the present invention to carry out the control of plate shape on-line setup.The plate shape that specifically needs to set is controlled the working roll roller bending roller force S that parameter comprises 1～5 frame ₁₁ ^j～S ₁₅ ^j, 1～5 frame intermediate calender rolls bending roller force S ₂₁ ^j～S ₂₅ ^j, 1～5 frame intermediate roll shifting amount RS _M1 ^j～RS _M5 ^jBelow provide concrete computational process:

The 1st step, execution in step 1), set up the tandem mill coordinate system;

The 2nd step, execution in step 2), the back con1=3 that is finished, con2 _i=2 (i=1～6), con3=1, con4=3;

The 3rd step, execution in step 3), collect relevant input parameter;

The 4th step, execution in step 4), calculate the belt steel temperature field according to rolled piece and roller temperature field module 3, and calculate each stand stretch district average deformation drag according to rolled piece plastic deformation module 1 simultaneously;

In the 5th step, because con4=3, step 5) is skipped automatically, execution in step 6), calculate each frame target glacing flatness curve σ according to plate-shape standard curve module 7 _1i ^Obj(i=1～n) and target thickness cross direction profiles curve h _i ^Obj(i=1～n);

The 6th step, execution in step 7), each frame plate shape control device is carried out optimizing calculate, obtain the optimum plate shape of each frame setup parameter S ₁₁ ^Opj～S ₁₅ ^Opj, S ₂₁ ^Opj～S ₂₅ ^Opj, RS _M1 ^Opj～RS _M5 ^Opj

The 7th step, execution in step 8), calculate rolling each the frame work roll thermal roll shape of back that finishes of current volume according to rolled piece and roller temperature field module 3, calculate rolling each the frame working roller abrasion roll shape of back that finishes of current volume according to roller system wearing and tearing module 4;

In the 8th step, because con4=3, step 9) is skipped automatically, execution in step 10), rolling each frame hot-rolling type of back, roll wear roll shape and the original grinding roll shape of roll of finishing of current volume superposeed, for the back volume calculates the condition that provides;

The 9th step is if rolling down coiled strip changed for the 1st step over to repeat, if not rolling coiled strip down calculates and finishes.

The 4th embodiment

With the full HC six roller cold continuous rollings of five frames is example, explains and how to adopt the present invention to carrying out plate shape FEEDFORWARD CONTROL.Comprise each frame work roll bending power, intermediate roll shifting amount, the roller amount of inclining for this milling train plate shape control parameter.

The 1st step, execution in step 1), set up the cold continuous rolling coordinate system;

The 2nd step, execution in step 2), the back con1=3 that is finished, con2 _i=1 (i=1～5), con3=1, con4=4;

The 3rd step, execution in step 3), collect relevant input parameter;

In the 4th step, because con4=4, step 4), step 5), step 6), step 7), step 8) are skipped automatically, execution in step 9), obtain each frame plate shape control device regulated quantity matrix K according to plate shape control module 8 _i ^j(i=1～5), i.e. the regulated quantity of each frame work roll bending power, intermediate roll shifting amount, the roller amount of inclining, calculating finishes.

The 5th embodiment

With last frame is that normal four-roller milling train (the work roll bending function is arranged) hot continuous rolling is an example, explains and how to adopt the present invention to carrying out plate shape FEEDBACK CONTROL.For the normal four-roller milling train that the work roll bending function is arranged, its plate shape control device comprises work roll bending power and inclines the roller amount.

The 1st step, execution in step 1), set up the cold continuous rolling coordinate system;

The 2nd step, execution in step 2), the back con1=3 that is finished, con2 _i=1 (i=1～5), con3=1, con4=5;

The 3rd step, execution in step 3), collect relevant input parameter;

In the 4th step, because con4=5, step 4), step 5), step 6), step 7), step 8) are skipped automatically, execution in step 9), obtain last frame plate shape control device regulated quantity matrix K according to plate shape control module 8 _n ^j, the regulated quantity of the promptly last frame work roll bending power and the roller amount of inclining, calculating finishes.

Claims (20)

1. plate-shape control integrated system, it is characterized in that: this system comprises 8 modules that are mutually related: rolled piece plastic deformation module (1), roll elastic deformation module (2); Rolled piece and roller temperature field module (3); Roller system wearing and tearing module (4), the good discrimination module of glacing flatness (5), plate shape pattern recognition module (6); Plate-shape standard curve module (7), plate shape control module (8); Wherein,

Said rolled piece plastic deformation module (1) provides the draught pressure cross direction profiles for roll elastic deformation module (2) and roll wear module (4), distributes for good discrimination module of glacing flatness (5) and plate shape pattern recognition module (6) provide flatness and lateral;

Said roll elastic deformation module (2) provides band steel exports thickness cross direction profiles for rolled piece plastic deformation module (1) and plate shape pattern recognition module (6), for roll wear module (4) provides the roll gap pressure cross direction profiles;

Said rolled piece and roller temperature field module (3) provide the deformed area mean temperature for the calculating of resistance of deformation in the rolled piece plastic deformation module (1), for the calculating of work roll thermal roll shape in the roll elastic deformation module (2) provides the working roll temperature field;

Said roll wear module (4) provides the roll wear roll shape for the calculating of comprehensive roll shape in the roll elastic deformation module (2);

Good discrimination module of said glacing flatness (5) and the local integrated formation plate-shape standard curve module of rolled piece plastic deformation module (1) (7);

Said plate shape control module (8) is calculated plate shape control device regulated quantity according to the output result of plate shape pattern recognition module (6).

2. plate-shape control integrated system according to claim 1; It is characterized in that: said rolled piece plastic deformation module (1) is according to rolling condition; Consider the lateral flow of rolled piece; Set up deformed area Three-dimensional Flow velocity field, strain field, stress field, confirm the cross direction profiles of draught pressure and outlet glacing flatness, adopt Mathematical Modeling to represent as follows:

Wherein, i is the frame number,

Be a row vector, comprised 3 element: σ _1i, σ _0i, p _i, f ₁₁Be streamline bar unit method computing formula, f ₁₂Be stream ready-to-eat type noodle method computing formula, f ₁₃Be bar unit calculus of variations computing formula, σ _1i, σ _0iBe respectively the forward and backward tensile stress cross direction profiles of i frame value, p _iBe i frame draught pressure cross direction profiles value, σ _SiBe i frame band steel average deformation drag, μ _iBe i frame coefficient of friction, h _I-1, h _iBe respectively that i frame band steel is gone into, exit thickness cross direction profiles value, B is band steel supplied materials width, T _i, T _I-1Be respectively the forward and backward tension force of i frame;

Each frame band steel average deformation drag σ _SiBy steel grade, drafts, mill speed and the decision of deformed area band mean temperature, adopt Mathematical Modeling to represent as follows:

Wherein, f ₁₄Be resistance of deformation computing formula, s _sBe steel grade, v ₀Be the first frame porch window of web velocities,

Be deformed area band ensemble average temperature.

3. plate-shape control integrated system according to claim 1; It is characterized in that; Said roll elastic deformation module (2) is calculated amount of deflection, the flattening amount of roll according to Elasticity; Final definite rolled piece exit thickness cross direction profiles value and roll gap pressure cross direction profiles value, adopt Mathematical Modeling to represent as follows:

C _wi＝C _wgi+C _wti-W _wi

C _mi＝C _mgi-W _mi

C _bi＝C _bgi-W _bi

Wherein, i is the frame number,

Be a row vector, comprised 3 element: h _i, q _Wmi, q _Mbi,

Be a row vector, comprised 2 element: h _i, q _Wbi, f ₂₁Be six-high cluster mill roll elastic deformation computing formula, f ₂₂Be four-high mill roll elastic deformation computing formula, h _iBe i frame band steel exports thickness cross direction profiles value, p _iBe i frame draught pressure cross direction profiles value, q _WmiBe i frame working roll and intermediate calender rolls roll gap pressure cross direction profiles, q _MbiBe i frame intermediate calender rolls and backing roll roll gap pressure cross direction profiles, q _WbiBe i frame working roll and backing roll roll gap pressure cross direction profiles, L _WiBe i frame working roll barrel length, L _MiBe i frame intermediate calender rolls barrel length, L _BiBe i frame support roller barrel length, L _1iBe i frame work roll bending cylinder spacing, L _2iBe i frame intermediate calender rolls roller cylinder spacing, L _3iBe i frame depress oil cylinder centre-to-centre spacing, D _WiBe i frame work roll diameter, D _MiBe i frame intermediate calender rolls diameter, D _BiBe i frame support roller diameter, D _BniBe i frame support roller roll neck diameter, C _WiBe the comprehensive roll shape of i frame working roll, C _WgiBe the original grinding roll shape of i frame working roll, C _W1iBe i frame work roll thermal roll shape, W _WiBe i frame working roller abrasion roll shape, C _MiBe the comprehensive roll shape of i frame intermediate calender rolls, C _MgiBe the original grinding roll shape of i frame intermediate calender rolls, W _MiBe i frame intermediate calender rolls wearing and tearing roll shapes, C _BiBe the comprehensive roll shape of i frame support roller, C _BgiBe the original grinding roll shape of i frame support roller, W _BiBe i frame support roller wearing and tearing roll shapes, S _1iBe i frame work roll bending power, S _2iBe i frame intermediate calender rolls bending roller force, RS _WiBe i frame working roll roll shifting amount, RS _MiBe i frame intermediate roll shifting amount, Tilt _iBe the i frame roller amount of inclining, θ _iBe the i breast roller angle of the crossing,

It is i frame band steel exports average thickness;

Formula C _Wi=C _Wgi+ C _Wti-W _WiMiddle roll hot-rolling type can calculate according to iron Mo Xinke formula, adopts Mathematical Modeling to represent as follows:

Wherein, f ₂₃Be iron Mo Xinke formula,

I frame work roll thermal roll shape during for rolling j+1 winding steel, T _WiBe temperature field during machine on the i frame working roll,

I frame working roll temperature field during for rolling j+1 winding steel.

4. plate-shape control integrated system according to claim 1; It is characterized in that: the rolled piece temperature field that the rolled piece temperature field in said rolled piece and the roller temperature field module (3) adopts the two-dimensional finite calculus of finite differences to calculate rolling district and non-rolling district, confirm each frame rolling deformation district band ensemble average temperature through integration method

, average surface temperature

, outlet band transverse temperature distribution curve T _{Δ i}, adopt Mathematical Modeling to represent as follows:

(x＞0)

(x＞0)

Wherein, T is a two dimensional field amount, and expression belt steel temperature field is the function of y, z, and coordinate system is defined as: x is that belt steel rolling direction, y are that strip width direction, z are short transverse, and the origin of coordinates is finish rolling inlet temperature measurer place, f ₃₁Be divided into cold continuous rolling rolled piece temperature field computing formula, f ₃₂Be continuous hot-rolling mill rolled piece temperature field computing formula, n is the total frame number of tandem mill, Be a row vector, comprised n-1 element: L _M12～L _{M (n-1) n},

Be a row vector, comprised 4n+1 element: L _M12～L _{M (n-1) n}, L _T0, L _T1～L _Tn, L _C0, L _C1～L _Cn, Bu ₁～Bu _n, T _s(y z) is the two-dimensional temperature field of x=0 place rolled piece, v ₀Be supplied materials speed, B is the supplied materials width,

Be band steel supplied materials average thickness and each frame outlet average thickness, μ ₁～μ _nBe each frame coefficient of friction, σ _S1～σ _SnBe each frame deformation of rolled wire drag,

Be each breast roller average surface temperature, T _C1～T _CnBe each frame cooling water or emulsion temperature, T _aBe air themperature, L _M12～L _{M (n-1) n}Be frame spacing, L _T0Be De-scaling box center to the first frame central spacing, L _T1～L _TnThe water-cooled node is to this frame central spacing, L after each frame _C0For spraying, De-scaling box covers siding-to-siding block length, L _C1～L _CnThe water-cooled node sprays and covers siding-to-siding block length, Bu after each frame ₁～Bu _nFor describing the state variable that whether the water-cooled node sprays water after each frame, value 0 or 1 is got 0 expression and is not existed or do not spray water, and gets the normal water spray of 1 expression;

Calculate through finite difference calculus roller temperature field in said rolled piece and the roller temperature field module (3), adopts Mathematical Modeling to represent as follows:

Wherein, i is the frame number, and j is rolling coil of strip number,

Be after j winding steel rolling finishes

Moment i frame working roll temperature field,

Being respectively the pure of rolling j winding steel rolls the time and rolls back intermittent time, T _WiTemperature during machine on the i frame working roll,

Each frame rolling deformation district strip surface mean temperature during for rolling j winding steel.

5. plate-shape control integrated system according to claim 1 is characterized in that: said roller system's wearing and tearing modules (4) adopt Mathematical Modeling to represent as follows:

Wherein, i is the frame number, and j is rolling coil of strip number, f _51wBe six-high cluster mill working roll roll wear computing formula, f _51mBe six-high cluster mill intermediate calender rolls roll wear computing formula, f _51bBe six-high cluster mill backing roll roll wear computing formula, f _52wBe four-high mill working roller abrasion computing formula, f _52bBe four-high mill backing roll roll wear computing formula,

Be j winding steel inlet thickness cross direction profiles value rolling behind the machine on the roll,

Be rolling j winding steel exports thickness cross direction profiles value behind the machine on the i breast roller,

Be rolling j winding steel rolling pressure cross direction profiles value behind the machine on the i breast roller,

Be rolling j winding steel working roll and intermediate calender rolls roll gap pressure cross direction profiles value behind the machine on the i breast roller,

Be rolling j winding steel intermediate calender rolls and backing roll roll gap pressure cross direction profiles value behind the machine on the i breast roller,

Be rolling j winding steel working roll and backing roll roll gap pressure cross direction profiles value behind the machine on the i breast roller,

Be the intact back of j-1 winding steel rolling i frame working roller abrasion roll shape,

Be the intact back of j-1 winding steel rolling i frame intermediate calender rolls wearing and tearing roll shapes,

Be the intact back of j-1 winding steel rolling i frame support roller wearing and tearing roll shapes,

Be machine time wearing and tearing roll shape on the i frame working roll, Be machine time wearing and tearing roll shape on the i frame intermediate calender rolls,

Be machine time wearing and tearing roll shape on the i frame support roller,

Be the intact back of j winding steel rolling i frame working roller abrasion roll shape,

Be the intact back of j winding steel rolling i frame intermediate calender rolls wearing and tearing roll shapes,

Be the intact back of j winding steel rolling i frame support roller wearing and tearing roll shapes,

Be j winding steel supplied materials length.

6. plate-shape control integrated system according to claim 1; It is characterized in that: the good discrimination module of said glacing flatness (5) distributes according to the band steel exports flatness and lateral that rolled piece plastic deformation module (1) calculates; Differentiate the factor through plate shape and judge plate shape quality, adopt Mathematical Modeling to represent as follows:

Wherein, i is the frame number, f ₆Be the differentiation factorization method of cutting apart based on bar unit, B is a strip width, I frame exit band steel average thickness, σ _1iBe tensile stress cross direction profiles value before the i frame, ξ _iI frame band steel exports glacing flatness is differentiated the factor, ξ _iThe band steel was straight in＞1 o'clock, ξ _iThe band steel was in critical instability status, ξ in=1 o'clock _i＜1 o'clock band steel unstability.

7. plate-shape control integrated system according to claim 1; It is characterized in that: said plate shape pattern recognition module (6) adopts the least square method based on Legnedre polynomial; Pattern classification is carried out in plate shape distribution to rolling back band steel, adopts Mathematical Modeling to represent as follows:

Wherein, i is the frame number, σ _1iBe tensile stress cross direction profiles value before the i frame, h _iBe i frame band steel exports thickness cross direction profiles value,

Be a row vector, comprised 4 element: a _1i, a _2i, a _3i, a _4i,

Be a row vector, comprised 4 element: e _1i, e _2i, e _3i, e _4i, f ₇Be the least square method based on Legnedre polynomial, a _1i～a _4iBe respectively the i frame and export strip profile and flatness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues, e _1i～e _4iBe respectively the i frame and export belt steel thickness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues.

8. plate-shape control integrated system according to claim 1 is characterized in that: said plate-shape standard curve module (7) adopts Mathematical Modeling to represent as follows:

Wherein, f ₈Be tandem mill plate-shape standard curve computing formula, n is the total frame number of tandem mill, and B is a strip width, h ₀Be finishing mill incoming band steel thickness cross direction profiles,

Be finishing mill incoming band steel average thickness,

Be the 1st～n frame band steel exports average thickness, Be a row vector, comprised n element:

Be a row vector, comprised n element:

Be the tandem mill end frame outlet band target glacing flatness curve of industrial requirements decision,

The tandem mill end frame outlet band target thickness cross direction profiles curve of industrial requirements decision,

Be respectively each frame export goal glacing flatness curve,

Be respectively each frame export goal thickness cross direction profiles curve.

9. plate-shape control integrated system according to claim 1 is characterized in that: said plate shape control module (8) adopts Mathematical Modeling to represent as follows:

Wherein, f ₉₁Be the plate shape control device compensation rate computing formula that last frame outlet actual measurement glacing flatness and target glacing flatness deviation cause, f ₉₂For guaranteeing that each frame exports actual glacing flatness curve and equals under the prerequisite of target glacing flatness curve; Front section actual measurement thickness cross direction profiles worked as by supplied materials and the supplied materials head is surveyed each frame plate shape control device compensation rate computing formula that thickness cross direction profiles deviation causes; Be applicable to cold continuous rolling, f ₉₃For guaranteeing that the actual exit thickness cross direction profiles of each frame equals under the prerequisite of target thickness cross direction profiles; Front section actual measurement thickness cross direction profiles worked as by supplied materials and the supplied materials head is surveyed each frame plate shape control device compensation rate computing formula that thickness cross direction profiles deviation causes; Be applicable to continuous hot-rolling mill, Δ a _1n, Δ a _2n, Δ a _3n, Δ a _4nBe respectively last frame outlet poor when front section actual measurement glacing flatness curve 1 time, 2 times, 3 times, 4 sub-eigenvalues and target glacing flatness curve 1 time, 2 times, 3 times, 4 sub-eigenvalues, Δ e ₁₀, Δ e ₂₀, Δ e ₃₀, Δ e ₄₀Be respectively supplied materials poor when front section actual measurement thickness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues and band steel toe portion actual measurement thickness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues,

Be all plate shape control device regulated quantity matrixes of i frame, n is the total frame number of tandem mill, Be all plate shape control device regulated quantity matrixes of n frame.

10. the manner of execution of a plate-shape control integrated system, it is characterized in that: this method comprises following computer step:

Step 1) is set up the tandem mill coordinate system;

Step 2) confirm the use object of plate-shape control integrated system, the definition integer variable:

{con1，con2 ₁，…，con2 _n，con3，con4，con5}，

Wherein, n is a tandem mill frame number, through this n+4 of initialization variable, confirms the use object of plate-shape control integrated system;

Step 3) is collected relevant rolling equipment and technological parameter;

Step 4) is when con4=1 and con1=3; Perhaps when con4=2 and con1=3; Perhaps when con4=3 and con1=3; Calculate the belt steel temperature field according to rolled piece and roller temperature field module (3), and calculate each stand stretch district average deformation drag according to rolled piece plastic deformation module (1) simultaneously;

Step 5) perhaps when con4=2, is coupled to rolled piece plastic deformation module (1) and roll elastic deformation module (2) when con4=1, finds the solution each frame outlet glacing flatness, thickness and draught pressure cross direction profiles;

Step 6) is calculated each frame target glacing flatness curve

and target thickness cross direction profiles curve according to plate-shape standard curve module (7) when con4=3

Step 7) is carried out optimizing to each frame plate shape control device and is calculated when con4=3, obtains each frame plate shape setup parameter;

Step 8) is calculated rolling each the frame work roll thermal roll shape of back that finishes of current volume according to rolled piece and roller temperature field module (3) when con4=3, calculate rolling each the frame working roller abrasion roll shape of back that finishes of current volume according to roller system's wearing and tearing modules (4);

Step 9) is when con4=1; Perhaps when con4=4; Perhaps when con4=5; According to plate shape pattern recognition module (6) glacing flatness or thickness cross direction profiles curve are carried out pattern-recognition, calculate each frame plate shape control device regulated quantity matrix according to plate shape control module (8)

Step 10) superposes rolling each frame hot-rolling type of back, roll wear roll shape and the original grinding roll shape of roll of finishing of current volume when con4=3.

11. the manner of execution of plate-shape control integrated system according to claim 10 is characterized in that: it is specific as follows to set up the tandem mill coordinate system in the said step 1):

The length of rolled piece direction is elected to be the x axle, and the rolled piece width is elected to be the y axle, and the rolled piece short transverse is elected to be the z axle, and the origin of coordinates is chosen milling train width center at the y axle before the x axle is chosen tandem mill first rolling mill inlet, choose the rolled piece mid-depth at the z axle.

12. the manner of execution of plate-shape control integrated system according to claim 10 is characterized in that: the use object said step 2) comprises:

1a) be applied to hot continuous rolling when line computation, make con1=3, con3=2,

Be applied to cold continuous rolling when line computation, make con1=3, con3=1,

When being applied to the hot continuous rolling off-line analysis, make con1=2, con3=2,

When being applied to the cold continuous rolling off-line analysis, make con1=1, con3=1;

When 1b) being applied to six-high cluster mill, make con2 _i=1, i=1～n, n are the frame numbers,

When being applied to four-high mill, make con2 _i=2, i=1～n, n are the frame numbers;

When 1c) being applied to control performance analysis of plate shape and type selection technology, make con4=1,

When being applied to the roll shape optimisation technique, make con4=2,

When being applied to plate shape setting control technology, make con4=3,

When being applied to plate shape FEEDFORWARD CONTROL technology, make con4=4,

When being applied to plate shape feedback control technology, make con4=5.

13. the manner of execution of plate-shape control integrated system according to claim 10 is characterized in that: relevant rolling equipment of the collection in the said step 3) and technological parameter may further comprise the steps:

Step 2a) when con4=1, perhaps when con4=2, perhaps when con4=3, collect the rolling equipment relevant parameter, comprising: each frame working roll barrel length L _Wi, each frame work roll diameter D _Wi, con2 _i=1 o'clock frame intermediate calender rolls barrel length L _Mi, con2 _i=1 o'clock frame intermediate calender rolls diameter D _Mi, each frame support roller barrel length L _Bi, each frame support roller diameter D _Bi, each frame support roller roll neck diameter D _Bni, each frame work roll bending cylinder spacing L _1i, con2 _i=1 o'clock frame intermediate calender rolls roller cylinder spacing L _2i, each frame depress oil cylinder centre-to-centre spacing L _3i, the original grinding roll shape of each frame working roll C _Wgi, con2 _i=1 o'clock the original grinding roll shape of frame intermediate calender rolls C _Mgi, the original grinding roll shape of each frame support roller C _Bgi

Step 2b) when con4=1 and con1=3, perhaps when con4=2 and con1=3, perhaps when con4=3 and con1=3, collect the rolling equipment relevant parameter, comprising: each frame working roll is initially gone up the machine temperature T _Wi, each frame cooling water or emulsion temperature T _Ci, air themperature T _a, frame spacing L _{Mi (i+1)}

Step 2c) when con4=1 and con1=3 and con3=2; Perhaps when con4=2 and con1=3 and con3=2; Perhaps when con4=3 and con1=3 and con3=2, collect the rolling equipment relevant parameter, comprising: De-scaling box center to the first frame central spacing L _T0, the water-cooled node is to this frame central spacing L after each frame _Ti, De-scaling box sprays length L between the area of coverage _C0, the water-cooled node sprays length L between the area of coverage after each frame _Ci

Step 2d) when con4=1, perhaps when con4=2, collect strip steel related process parameter, comprising: supplied materials width set-point B, supplied materials average thickness set-point

Each stand stretch drag set-point Supplied materials thickness cross direction profiles set-point h ₀, each frame outlet average thickness set-point

First frame inlet given tension value T ₀, each frame outlet given tension value T _i, each frame coefficient of friction set-point μ _i, each frame work roll bending power set-point S _1i, con2 _i=1 o'clock frame intermediate calender rolls bending roller force set-point S _2i, each frame working roll roll shifting amount set-point RS _Wi, con2 _i=1 o'clock frame intermediate roll shifting amount set-point RS _Mi, each frame roller amount set-point Tilt that inclines _i, con2 _i=2 o'clock breast roller angle of the crossing set-point θ _i

Step 2e) when con4=3, collect strip steel related process parameter, comprising: current winding steel steel reel number j, supplied materials steel grade The width measured value B ^j, supplied materials average thickness measured value Supplied materials length measured value

Each stand stretch drag setting value

Supplied materials head thickness cross direction profiles measured value

Supplied materials temperature measured value

Supplied materials speed measured value

The pure time measured value that rolls

Roll back intermittent time measured value Each frame outlet average thickness setting value First frame inlet tension force setting value

Each frame outlet tension force setting value Each frame coefficient of friction setting value

Each frame work roll bending power upper and lower limit

Con2 _i=1 o'clock frame intermediate calender rolls bending roller force upper and lower limit

Each frame working roll roll shifting amount setting value upper and lower limit

Con2 _i=1 frame intermediate roll shifting amount upper and lower limit

Con2 _i=2 breast roller angle of the crossing upper and lower limits

The last frame export goal flatness and lateral of industrial requirements decision distributes

The last frame export goal thickness cross direction profiles of industrial requirements decision

Step 2f) when con4=3 and con3=2; Collect strip steel related process parameter, comprising: the state variable that whether the water-cooled node sprays water after current each frame of winding steel

Step 2g) when con4=3, makes each frame roller amount of inclining

Each frame work roll surface mean temperature

The comprehensive roll shape C of each frame working roll roller _Wi=C _Wgi, the comprehensive roll shape C of each frame support roller _Bi=C _Bgi, temperature during machine on each frame working roll

Wear extent during machine on each frame working roll

Wear extent during machine on each frame support roller

As con4=3 and con2 _i, make the comprehensive roll shape C of each frame intermediate calender rolls at=1 o'clock _Mi=C _Mgi, wear extent during machine on each frame intermediate calender rolls

Step 2h) when con4=4, collecting belt steel supplied materials head thickness cross direction profiles measured value

band steel supplied materials current section thickness cross direction profiles measured value

Step 2i) when con4=5, band steel end frame export goal flatness and lateral distribution

the band steel end frame outlet of collecting the industrial requirements decision is when front section flatness and lateral distribution measured value

14. the manner of execution of plate-shape control integrated system according to claim 10; It is characterized in that; In the said step 4) when con4=1 and con1=3, perhaps when con4=2 and con1=3, perhaps when con4=3 and con1=3; Calculate the belt steel temperature field according to rolled piece and roller temperature field module (3), and calculate each stand stretch district average deformation drag according to rolled piece plastic deformation module (1) simultaneously and may further comprise the steps:

Step 3a) so that each rack strip deformation resistance of the actual value?

is equal to the current volume of each rack strip deformation resistance settings?

Step 3b) when con3=1, with the supplied materials temperature

Supplied materials speed

The supplied materials width B ^j, the supplied materials average thickness With each frame outlet average thickness

Each frame coefficient of friction

Each stand stretch drag actual value of band steel

Each frame work roll surface mean temperature

Each frame emulsion temperature T _C1～T _Cn, air themperature T _a, frame spacing L _M12～L _{M (n-1) n}As input parameter, can obtain strip temperature field T according to rolled piece and roller temperature field module (3) ^jWhen con3=2, with the supplied materials temperature

Supplied materials speed The supplied materials width B ^j, the supplied materials average thickness

With each frame outlet average thickness

Each frame coefficient of friction

Each stand stretch drag actual value of band steel

Each frame work roll surface mean temperature Each frame cooling water temperature T _C1～T _Cn, air themperature T _a, frame spacing L _M12～L _{M (n-1) n}, De-scaling box center to the first frame central spacing L _T0, the water-cooled node is to this frame central spacing L after each frame _T1～L _Tn, De-scaling box sprays length L between the area of coverage _C0, the water-cooled node sprays length L between the area of coverage after each frame _C1～L _Cn, whether the water-cooled node sprays water after each frame state variable Bu ₁～Bu _nAs input parameter, can obtain current winding steel temperature field T according to rolled piece and roller temperature field module (3) ^j, through to T ^jIntegration can obtain each frame rolling deformation district rolled piece mean temperature

Step 3c) with the supplied materials steel grade

I frame inlet thickness cross direction profiles

I frame exit thickness cross direction profiles Supplied materials speed

Supplied materials thickness cross direction profiles h ₀, i frame rolling deformation district rolled piece mean temperature

As input parameter, can obtain the new average deformation drag value of each frame according to rolled piece plastic deformation module (1)

Calculate the convergence judgment variable

Step 3d) judges ε ₁₁～ε _1nWhether all smaller or equal to given in advance little value ε ₁If, ε ₁₁～ε _1nAll smaller or equal to ε ₁, obtain final

And according to T at this moment ^jEach frame rolling deformation district rolled piece average surface temperature of integral and calculating

Calculate and finish; If ε ₁₁～ε _1nNot all smaller or equal to ε ₁, order

Repeating step 3b), step 3c), step 3d), up to ε ₁₁～ε _1nAll smaller or equal to ε ₁Till.

15. the manner of execution of plate-shape control integrated system according to claim 10; It is characterized in that; In the said step 5) when con4=1; Perhaps when con4=2, rolled piece plastic deformation module (1) and roll elastic deformation module (2) are coupled, find the solution each frame outlet glacing flatness, thickness and draught pressure cross direction profiles and may further comprise the steps:

Step 4a) suppose i frame exit thickness cross direction profiles wherein

be respectively i frame inlet, outlet average thickness,

is i frame inlet thickness cross direction profiles;

Step 4b) with i stand stretch drag actual value

I frame coefficient of friction

I frame inlet thickness cross direction profiles

I frame exit thickness cross direction profiles

The supplied materials width B ^j, i frame inlet tension force

I frame outlet tension force

As input parameter, try to achieve the preceding tensile stress cross direction profiles of current winding steel i frame according to rolled piece plastic deformation module (1)

Current winding steel i frame draught pressure cross direction profiles

Step 4c) works as con2 _i=1 o'clock, with i frame working roll barrel length L _Wi, i frame intermediate calender rolls barrel length L _Mi, i frame support roller barrel length L _Bi, i frame work roll bending cylinder spacing L _1i, i frame intermediate calender rolls roller cylinder spacing L _2i, i frame depress oil cylinder centre-to-centre spacing L _3i, i frame work roll diameter D _Wi, i frame intermediate calender rolls diameter D _Mi, i frame support roller diameter D _Bi, i frame support roller roll neck diameter D _BniThe comprehensive roll shape C of i frame working roll _Wi, the comprehensive roll shape C of i frame intermediate calender rolls _Mi, the comprehensive roll shape C of i frame support roller _Bi, i frame work roll bending power I frame intermediate calender rolls bending roller force

I frame working roll roll shifting amount

I frame intermediate roll shifting amount

The i frame roller amount of inclining I frame draught pressure cross direction profiles I frame outlet average thickness

As input parameter, try to achieve the new exit thickness cross direction profiles of i frame according to roll elastic deformation module (2)

And i frame working roll corresponding and the distribution of intermediate calender rolls roll gap pressure with it

I frame intermediate calender rolls and backing roll roll gap pressure distribute

Work as con2 _i=2 o'clock, with i frame working roll barrel length L _Wi, i frame support roller barrel length L _Bi, i frame work roll bending cylinder spacing L _1i, i frame depress oil cylinder centre-to-centre spacing L _3i, i frame work roll diameter D _Wi, i frame support roller diameter D _Bi, i frame support roller roll neck diameter D _Bni, the comprehensive roll shape C of i frame working roll _Wi, the comprehensive roll shape C of i frame support roller _Bi, i frame work roll bending power

I frame working roll roll shifting amount

The i frame roller amount of inclining

I breast roller angle of the crossing θ _i, i frame draught pressure cross direction profiles

I frame outlet average thickness

As input parameter, try to achieve the new exit thickness cross direction profiles of i frame according to roll elastic deformation module (2)

And i frame working roll corresponding and the distribution of backing roll roll gap pressure with it

Calculate the convergence judgment variable

Step 4d) judges ε _iWhether smaller or equal to given in advance little value ε, if ε _i≤ε obtains the preceding tensile stress cross direction profiles of final i frame

I frame exit thickness cross direction profiles I frame draught pressure cross direction profiles

And i frame working roll corresponding and the distribution of intermediate calender rolls roll gap pressure with it

I frame intermediate calender rolls and backing roll roll gap pressure distribute Or i frame working roll and the distribution of backing roll roll gap pressure If ε _i＞ε, order

α is a relaxation factor, repeating step 4b), step 4c), step 4d), up to ε _iTill≤the ε.

16. the manner of execution of plate-shape control integrated system according to claim 10; It is characterized in that; In the said step 6) when con4=3, calculate each frame target glacing flatness curve and target thickness cross direction profiles curve

according to plate-shape standard curve module (7) and may further comprise the steps:

Step 5a) makes i=1;

Step 5b) sets i frame target glacing flatness curve and target thickness cross direction profiles curvilinear equation;

Each frame target glacing flatness curvilinear equation is:

Y in the formula---band steel horizontal relative coordinate, to another side, y from-1 to+1 from one side of band steel;

a ₀, a ₂, a ₄---fitting coefficient;

Each frame target thickness cross direction profiles curvilinear equation:

B in the formula ₀, b ₂, b ₄---fitting coefficient;

Step 5c), change step 5d over to if i is less than or equal to n-1), otherwise, change step 5f over to);

Step 5d) makes a ₄=0, adopt the given unknowm coefficient a of certain optimized Algorithm ₂, with supplied materials width B, i frame outlet average thickness

Tensile stress cross direction profiles σ before the i frame _1iInhomogeneous composition

As input parameter, try to achieve plate shape according to the good discrimination module of glacing flatness (5) and differentiate factor ξ _i, the condition of convergence is for making ξ _iThe convergence setting value judges whether to satisfy the condition of convergence, as satisfies the condition of convergence as far as possible, obtains i passage target glacing flatness curve standard value, is designated as

As do not satisfy the condition of convergence, repeated execution of steps 5d), till satisfying the condition of convergence;

Step 5e) adopt certain optimized Algorithm given

Unknowm coefficient b ₂, b ₄, with i stand stretch drag setting value

I frame coefficientoffriction _i, i frame inlet thickness cross direction profiles

I frame exit thickness cross direction profiles

Supplied materials width B, i frame inlet tension force T _I-1, i frame outlet tension force T _iAs input parameter, try to achieve preceding tensile stress cross direction profiles σ according to rolled piece plastic deformation module (1) _1iInhomogeneous composition

The condition of convergence is tensile stress cross direction profiles σ before making _1iInhomogeneous composition

Convergence i passage target glacing flatness curve standard value as far as possible

Judge whether to satisfy the condition of convergence, as satisfy the condition of convergence, obtain i passage target glacing flatness curve

With target thickness cross direction profiles curve

As do not satisfy the condition of convergence, repeated execution of steps 5e), till satisfying the condition of convergence;

Step 5f) according to back step operation two unknowm coefficient a is set in the specific (special) requirements of plate shape ₂, a ₄, obtain n passage target glacing flatness curve

Step 5g) adopt certain optimized Algorithm given

Unknowm coefficient b ₂, b ₄, with n stand stretch drag setting value

N frame coefficientoffriction _n, n frame inlet thickness cross direction profiles

N frame exit thickness cross direction profiles

Supplied materials width B, n frame inlet tension force T _N-1, n frame outlet tension force T _nAs input parameter, try to achieve preceding tensile stress cross direction profiles σ according to rolled piece plastic deformation module (1) _1nInhomogeneous composition

The condition of convergence is tensile stress cross direction profiles σ before making _1nInhomogeneous composition

Convergence n passage target glacing flatness curve as far as possible Judge whether to satisfy the condition of convergence, as satisfy the condition of convergence, obtain n passage target glacing flatness curve

With target thickness cross direction profiles curve

As do not satisfy the condition of convergence, repeated execution of steps 5g), till satisfying the condition of convergence;

Step 5h) make i=i+1, change step 5b over to), up to i=n.

17. the manner of execution of plate-shape control integrated system according to claim 10 is characterized in that, in the said step 7) when con4=3, each frame plate shape control device is carried out optimizing calculates, obtain each frame plate shape setup parameter and may further comprise the steps:

Step 6a) makes i=1;

Step 6b) when con4=3 and con3=1; Exporting actual glacing flatness curve with each frame, to equal target glacing flatness curve be target; When con4=3 and con3=2; Equaling target thickness cross direction profiles curve with each frame outlet actual (real) thickness cross direction profiles curve is target, adopts optimized Algorithm given one group of concrete parameter in the upper and lower scope of plate shape control parameter, specifically comprises: each frame work roll bending power

Each frame working roll roll shifting amount

Con2 _i=1 o'clock frame intermediate calender rolls bending roller force set-point

Con2 _i=1 o'clock frame intermediate roll shifting amount

Con2 _i=2 o'clock breast roller angle of the crossing set-point θ _i, change step 6c over to);

Step 6c) suppose i frame exit thickness cross direction profiles

wherein

be respectively i frame inlet, outlet average thickness,

is i frame inlet thickness cross direction profiles;

Step 6d) with i stand stretch drag actual value

I frame coefficient of friction

I frame inlet thickness cross direction profiles

I frame exit thickness cross direction profiles

The supplied materials width B ^j, i frame inlet tension force

I frame outlet tension force T _i ^jAs input parameter, try to achieve the preceding tensile stress cross direction profiles of current winding steel i frame according to rolled piece plastic deformation module (1)

Current winding steel i frame draught pressure cross direction profiles

Step 6e) works as con2 _i=1 o'clock, with i frame working roll barrel length L _Wi, i frame intermediate calender rolls barrel length L _Mi, i frame support roller barrel length L _Bi, i frame work roll bending cylinder spacing L _1i, i frame intermediate calender rolls roller cylinder spacing L _2i, i frame depress oil cylinder centre-to-centre spacing L _3i, i frame work roll diameter D _Wi, i frame intermediate calender rolls diameter D _Mi, i frame support roller diameter D _Bi, i frame support roller roll neck diameter D _Bni, the comprehensive roll shape C of i frame working roll _WiThe comprehensive roll shape C of i frame intermediate calender rolls _Mi, the comprehensive roll shape C of i frame support roller _Bi, i frame work roll bending power

I frame intermediate calender rolls bending roller force

I frame working roll roll shifting amount

I frame intermediate roll shifting amount The i frame roller amount of inclining

I frame draught pressure cross direction profiles

I frame outlet average thickness

As input parameter, try to achieve the new exit thickness cross direction profiles of i frame according to roll elastic deformation module (2)

And i frame working roll corresponding and the distribution of intermediate calender rolls roll gap pressure with it

I frame intermediate calender rolls and backing roll roll gap pressure distribute

Work as con2 _i=2 o'clock, with i frame working roll barrel length L _Wi, i frame support roller barrel length L _Bi, i frame work roll bending cylinder spacing L _1i, i frame depress oil cylinder centre-to-centre spacing L _3i, i frame work roll diameter D _Wi, i frame support roller diameter D _Bi, i frame support roller roll neck diameter D _Bni, the comprehensive roll shape C of i frame working roll _Wi, the comprehensive roll shape C of i frame support roller _Bi, i frame work roll bending power

I frame working roll roll shifting amount

The i frame roller amount of inclining I breast roller angle of the crossing θ _i, i frame draught pressure cross direction profiles

I frame outlet average thickness

As input parameter, try to achieve the new exit thickness cross direction profiles of i frame according to roll elastic deformation module (2)

And i frame working roll corresponding and the distribution of backing roll roll gap pressure with it

Calculate the convergence judgment variable

Step 6f) judges ε _2iWhether smaller or equal to given in advance little value ε ₂If, ε _2i≤ε ₂, obtain final

And it is corresponding with it

Or

Change step 6g over to), if ε _2i＞ε ₂, order α is a relaxation factor, repeating step 6d), step 6e), step 6f), up to ε _2i≤ε ₂Till;

Step 6g) when con4=3, judge whether to satisfy the computation optimization condition of convergence, as satisfy the condition of convergence, write down the optimum plate shape of current winding steel i frame setup parameter, change step 6h over to); As do not satisfy the condition of convergence, repeating step 6b)～step 6g), till satisfying;

Step 6h) judge whether i=n,, change step 6b over to if i ≠ n makes i=i+1), up to i=n.

18. the manner of execution of plate-shape control integrated system according to claim 10; It is characterized in that; In the said step 8) when con4=3; Calculate rolling each the frame work roll thermal roll shape of back that finishes of current volume according to rolled piece and roller temperature field module (3), calculate rolling each the frame working roller abrasion roll shape of back that finishes of current volume according to roller system's wearing and tearing modules (4); May further comprise the steps:

Step 7a) makes i=1;

Step 7b) with i frame working roll temperature field behind the rolling j-1 winding steel J winding steel i frame rolling deformation district rolled piece average surface temperature

Pure the rolling the time of j winding steel J winding steel rolls the back intermittent time

I frame work roll diameter D _WiAs input parameter, try to achieve i frame working roll temperature field behind the rolling j winding steel by rolled piece and roller temperature field module (3)

Step 7c) with i frame working roll temperature field

I frame working roll is initially gone up the machine temperature T _Wi, i frame work roll diameter D _WiAs input parameter, try to achieve i frame work roll thermal roll shape behind the rolling j winding steel by roll elastic deformation module (2)

Step 7d) judge whether i equals n,, change step 7b over to if i ≠ n makes i=i+1), if i=n changes step 7e over to);

Step 7e) makes i=1;

Step 7f) works as con2 _i=1 o'clock, with i frame working roller abrasion roll shape behind the rolling j-1 winding steel

I frame intermediate calender rolls wearing and tearing roll shape behind the rolling j-1 winding steel

I frame support roller wearing and tearing roll shape behind the rolling j-1 winding steel J winding steel supplied materials length J winding steel supplied materials thickness cross direction profiles

J winding steel i frame exit thickness cross direction profiles

J winding steel i frame draught pressure cross direction profiles

J winding steel i frame working roll and intermediate calender rolls roll gap pressure distribute

I frame intermediate calender rolls and backing roll roll gap pressure distribute As input parameter, try to achieve i frame working roller abrasion roll shape behind the rolling j winding steel by roller system wearing and tearing modules (4)

I frame intermediate calender rolls wearing and tearing roll shape behind the rolling j winding steel

I frame support roller wearing and tearing roll shape behind the rolling j winding steel

Work as con2 _i=2 o'clock, with i frame working roller abrasion roll shape behind the rolling j-1 winding steel

I frame support roller wearing and tearing roll shape behind the rolling j-1 winding steel J winding steel supplied materials length

J winding steel supplied materials thickness cross direction profiles

J winding steel i frame exit thickness cross direction profiles J winding steel i frame draught pressure cross direction profiles

I frame working roll and backing roll roll gap pressure distribute As input parameter, try to achieve i frame working roller abrasion roll shape behind the rolling j winding steel by roller system wearing and tearing modules (4)

I frame support roller wearing and tearing roll shape behind the rolling j winding steel

Step 7g) judge whether i equals n,, change step 7f over to if i ≠ n makes i=i+1), up to i=n.

19. the manner of execution of plate-shape control integrated system according to claim 10; It is characterized in that; In the said step 9) when con4=1; Perhaps when con4=4; Perhaps when con4=5; According to plate shape pattern recognition module (6) glacing flatness or thickness cross direction profiles curve are carried out pattern-recognition, calculate each frame plate shape control device regulated quantity matrix

according to plate shape control module (8) and may further comprise the steps:

Step 8a) when con4=1, makes i=1;

Step 8b) when con4=1; The i frame is exported preceding tensile stress cross direction profiles

as input parameter; By plate shape pattern recognition module (6) try to achieve rolling j winding steel i frame outlet strip profile and flatness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues

with i frame exit thickness cross direction profiles as input parameter, by plate shape pattern recognition module (6) try to achieve rolling j winding steel i frame outlet belt steel thickness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues

Step 8c) judge when con4=1 whether i equals the total frame of tandem mill and count n, if i ≠ n makes i=i+1, changes step 8b over to), up to i=n;

Step 8d) when con4=4; To be with the current section thickness of steel supplied materials cross direction profiles measured value

band steel supplied materials head thickness cross direction profiles measured value

as input parameter respectively, by formula plate shape pattern recognition module (6) try to achieve the current section thickness of rolling j winding steel supplied materials cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues

and rolling j winding steel supplied materials head thickness cross direction profiles 1 time, 2 times, 3 times, 4 sub-eigenvalues

and calculate the deviation

of corresponding sub-eigenvalue

Step 8e) when con4=4 and con3=1; With

as input parameter; Try to achieve each frame plate shape control device regulated quantity matrix

when con4=4 and the con3=2 by plate shape control module (8);

as input parameter, tried to achieve each frame plate shape control device regulated quantity matrix

by plate shape control module (8)

Step 8f) when con4=5; Flatness and lateral distributes

as input parameter will to export the band steel end frame export goal that determines when front section flatness and lateral distribution measured value

industrial requirements with steel end frame respectively, tries to achieve the deviation

that the last frame outlet of rolling j winding steel is worked as j winding steel end frame export goal flatness and lateral distribution 1 time, 2 times, 3 times, 4 sub-eigenvalues

of front section flatness and lateral distribution measured value 1 time, 2 times, 3 times, 4 sub-eigenvalues

and industrial requirements decision and calculated corresponding sub-eigenvalue by plate shape pattern recognition module (6)

Step 8g) when con4=5;

as input parameter, tried to achieve last frame plate shape control device regulated quantity matrix by plate shape control module (8)

20. the manner of execution of plate-shape control integrated system according to claim 10; It is characterized in that: in the said step 10) when con4=3, rolling back each frame hot-rolling type, roll wear roll shape and the original grinding roll shape of roll of finishing of current volume superposeed according to following mode:

Work as con2 _i=1 o'clock, order

C wherein _WiBe the comprehensive roll shape of i frame working roll, C _MiBe the comprehensive roll shape of i frame intermediate calender rolls, C _BiBe the comprehensive roll shape of i frame support roller, C _WgiBe the original grinding roll shape of i frame working roll, C _MgiBe the original grinding roll shape of i frame intermediate calender rolls, C _BgiBe the original grinding roll shape of i frame support roller,

Be i frame working roller abrasion roll shape behind the rolling j winding steel,

Be i frame intermediate calender rolls wearing and tearing roll shape behind the rolling j winding steel,

Be i frame support roller wearing and tearing roll shape behind the rolling j winding steel,

I frame work roll thermal roll shape behind the rolling j winding steel;

Work as con2 _i=2 o'clock, order

C wherein _WiBe the comprehensive roll shape of i frame working roll, C _BiBe the comprehensive roll shape of i frame support roller, C _WgiBe the original grinding roll shape of i frame working roll, C _BgiBe the original grinding roll shape of i frame support roller,

Be i frame working roller abrasion roll shape behind the rolling j winding steel,

Be i frame support roller wearing and tearing roll shape behind the rolling j winding steel,

I frame work roll thermal roll shape behind the rolling j winding steel.

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