CN103406361A - Aluminum cold-rolling mill rolling schedule generation method based on material states and parameter curves - Google Patents

Aluminum cold-rolling mill rolling schedule generation method based on material states and parameter curves Download PDF

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CN103406361A
CN103406361A CN2013103370985A CN201310337098A CN103406361A CN 103406361 A CN103406361 A CN 103406361A CN 2013103370985 A CN2013103370985 A CN 2013103370985A CN 201310337098 A CN201310337098 A CN 201310337098A CN 103406361 A CN103406361 A CN 103406361A
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rolling
thickness
reduction ratio
parameter
passage
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CN103406361B (en
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彭鹏
王仁忠
徐靖
徐建华
张苏明
赵德方
李迪
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China Nonferrous Metals Processing Technology Co Ltd
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Suzhou Nonferrous Metal Research Institute Co Ltd
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Abstract

The invention relates to an aluminum cold-rolling mill rolling schedule generation method based on material states and parameter curves. The method includes determining intermediate annealing process parameters in a rolling schedule in terms of a material finished product state according to raw materials and finished product parameter requirements of aluminum rolls, determining process parameters such as the times of rolling passes, thickness of each pass and rolling speed according to the parameter curves, then calculating rolling schedule control parameters according to a mathematical model, and checking and correcting according to mechanical parameters of a unit so as to automatically generate the rolling schedule of the aluminum rolls. According to the method, after finished product definition and parameter curves of a certain material are determined according to process requirements and empirical data, automatic rolling schedule generation aiming for aluminum rolls made of the material and in various dimensions can be realized, maintenance and extension according to materials are facilitated, and a systematized rolling schedule generation technique is formed.

Description

Aluminum cold-rolling mill rolling procedure generation method based on materials behavior and parameter curve
Technical field
The present invention relates to a kind of rolling procedure making method that is applicable to aluminum cold-rolling mill, relate in particular to the aluminum cold-rolling mill rolling procedure generation method based on materials behavior and parameter curve.
Background technology
At present, research for the aluminum cold-rolling mill rolling procedure making method is less, lack mature and reliable, produce practical rolling procedure making method: one, the formulation of rolling procedure are main mainly with artificial experience greatly, lack systematized rolling procedure making technology; Its two, can not systematically consider aluminium cold rolling process factors comprehensively, mostly only from the angle of thickness, carry out sub-distribution, do not consider the finished product state requirement, and on technological parameters such as the same significant speed of operation of rolling impact, tension force.
The aluminum cold-rolling mill production process is flexible and changeable, while for the various rolling specs of unlike material, being rolled procedure making, need to consider the factors such as end properties requirement, material processing technique characteristic, milling train power energy parameter limit, could realize the scientific rationality of the rolling procedure automatically generated, to improve rolling process stability and production efficiency.
Based on above-mentioned purpose, design a kind of rolling procedure of aluminum cold-rolling mill based on materials behavior and parameter curve generation method, have important practical significance.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of rolling procedure of aluminum cold-rolling mill based on materials behavior and parameter curve generation method is provided.
Purpose of the present invention is achieved through the following technical solutions:
Aluminum cold-rolling mill rolling procedure generation method based on materials behavior and parameter curve, raw material finished product parameter request for the aluminium volume, with the finished material state, determine the intermediate annealing process parameter in rolling procedure, with parameter curve, determine rolling pass number and each passage thickness, mill speed, tension force technological parameter, according to calculated with mathematical model, go out to meet again the rolling procedure control parameter of unit power energy parameter limit, realize the automatic generation of aluminium rolling rules processed, step is as follows:
(1) rule of thumb reach measured data, determine the finished product state definition according to the material difference, and according to the curvilinear function form, simulate the function parameter of reduction ratio curve, mill speed curve;
(2) according to aluminium volume raw material finished product parameter request, by aluminium, be rolled into the definition of product status poll material finished product state, obtain the required accumulative total reduction ratio of finished product state and corresponding finished product treatment process sign, and according to the largest cumulative reduction ratio that this material allows, be rolled the calculating of rules intermediate annealing parameter, determine the gateway thickness of total rolling hop count and each rolling section;
(3) carry out successively the rolling schedule calculation of each rolling section, gateway thickness according to k rolling section, after with reduction ratio, mill speed curve, determining section rolling pass number and each passage thickness, mill speed, tension force technological parameter, then control parameter according to the rolling procedure that calculated with mathematical model goes out to meet unit power energy parameter limit;
3a), according to the gateway thickness of k rolling section, determine section road number of times according to the reduction ratio curve;
3b) according to k rolling Duan Deduan road number of times, according to each passage thickness of standard criterion curve calculation, distribute normal value, the target reduction ratio ratio distributed as this road secondary segment thickness carries out the thickness distribution;
3c), after each passage thickness distributes, determine each passage mill speed according to rate curve, determine each passage gateway tension force according to tensiometer;
3d) according to the rolling procedure of each passage of this section of calculated with mathematical model, control parameter, and check correction according to unit power energy limit parameter;
(4) repeating step (3) completes the calculating of each section rules, generates this rolling rules processed.
Further, the above-mentioned rolling procedure of the aluminum cold-rolling mill based on materials behavior and parameter curve generation method, step is:
(1) rule of thumb reach measured data, according to the material difference, determine the finished product state definition, and according to the curvilinear function form, simulate the function parameter of reduction ratio curve, mill speed curve;
1a), in the definition of material finished product state, for various finished product state codes, determine accumulative total reduction ratio, the finished product treatment process of its requirement, and the largest cumulative reduction ratio of this material permission;
1b) reduction ratio curve, adopt curvilinear function to describe thickness and the corresponding relation of recommending reduction ratio, as follows:
ε=b 2·h 2+b 1·h+b 0
In formula: the recommendation reduction ratio that ε-this thickness is corresponding, %; H-passage thickness, mm; b 2, b 1, b 0-reduction ratio curve coefficients;
1c) mill speed curve, adopt curvilinear function to describe thickness and the corresponding relation of recommending mill speed, as follows:
V=c 1·ln(h)+c 0
In formula: the recommendation mill speed that this thickness of V-is corresponding, m/min; c 1, c 0-mill speed curve coefficients;
(2) according to aluminium volume raw material finished product parameter request, by aluminium, be rolled into the definition of product status poll material finished product state, obtain the required accumulative total reduction ratio of this finished product state and corresponding finished product treatment process sign, and according to the largest cumulative reduction ratio that this material allows, be rolled the calculating of rules intermediate annealing parameter, and then determine the gateway thickness of total rolling hop count and each rolling section;
2a) according to the required accumulative total reduction ratio of finished product state, according to finished product thickness, calculate and realize the intermediate annealing thickness that this reduction ratio is required, as follows:
h ann=h aim/(1-ε aim/100)
In formula: h annThe intermediate annealing thickness of-requirement, mm; h aim-aluminium is rolled into product thickness, mm; ε aim-aluminium is rolled into the accumulative total reduction ratio of product state requirement, %;
Largest cumulative reduction ratio 2b) allowed according to this material, calculate each interior thickness successively according to raw thickness and largest cumulative reduction ratio, as follows:
h mid[0]=h mat·(1-ε max/100)
h mid[j]=h mid[j-1]·(1-ε max/100) j=1,...,J
In formula: h midThe interior thickness that [j]-largest cumulative reduction ratio is corresponding, mm; h mat-aluminium volume raw thickness, mm; ε maxThe largest cumulative reduction ratio that-aluminium coiled material matter allows, %; J-interior thickness sequence number; The maximum of J-interior thickness sequence number;
Work as h mid[j] is less than the required intermediate annealing thickness h of finished product state annThe time, h mid[j]=h ann, stopping interior thickness and calculate, j value now is the maximum sequence number J of interior thickness;
H 2c) required according to finished product state ann, each intermediate annealing thickness h mid[j] parameter, determine total rolling hop count;
Work as h ann=h aimThe time, when namely the finished product state requires without the accumulative total reduction ratio, K=J+1;
Work as h annH aimThe time, when namely the finished product state has the requirement of accumulative total reduction ratio, K=J+2;
In formula: the total rolling hop count of K-;
2d) after determining total rolling hop count, according to the required intermediate annealing thickness h of finished product state ann, each intermediate annealing thickness h mid[j] parameter is determined the gateway parameter of each rolling section, as follows:
h dmat[k]=h mat,h daim[k]=h mid[k],k=0
h dmat[k]=h mid[k-1],h daim[k]=h mid[k],k=1,...,K-2
h dmat[k]=h mid[k-1],h daim[k]=h aim,k=K-1
In formula: k-rolling section sequence number; h midThe interior thickness that-largest cumulative reduction ratio is corresponding, mm; h DmatThe inlet thickness of [k]-k rolling section, mm; h DaimThe exit thickness of [k]-k rolling section, mm;
(3) carry out successively the rolling schedule calculation of each k rolling section, gateway thickness according to k rolling section, after with reduction ratio, mill speed curve, determining section rolling pass number and each passage thickness, mill speed, tension force technological parameter, then control parameter according to the rolling procedure that calculated with mathematical model goes out to meet unit power energy parameter limit;
3a), according to the gateway thickness of k rolling section, calculate successively each interim thickness according to the reduction ratio curve, as follows:
h temp[0]=h dmat[k]·(1-ε temp[0]/100)
ε temp[0]=b 2·h dmat[k] 2+b 1·h dmat[k]+b 0
h temp[i]=h temp[i-1]·(1-ε temp[i]/100) i=1,...,N[k]-1
ε temp[i]=b 2·h temp[i] 2+b 1·h temp[i]+b 0
In formula: h TempThe interim thickness that [i]-successively calculates, mm; ε Temp[i]-according to the recommendation reduction ratio of reduction ratio curve according to THICKNESS CALCULATION, %; I-k rolling Duan De road sequence number; N[k]-k rolling Duan Dezong road number of times, work as h Temp[i]<=h DaimWhen [k], stop the calculating successively of interim thickness, now i+1 is k rolling Duan Dezong road number of times N[k];
3b) according to k rolling Duan Deduan road number of times, according to each passage thickness of standard criterion curve calculation, distribute normal value, as follows:
G [ i ] = d 2 &CenterDot; ( 5 * i N [ k ] ) 2 + d 1 &CenterDot; ( 5 * i N [ k ] ) + d 0
In formula: G[i]-each passage normal value, %; d 2, d 1, d 0-standard criterion curve coefficients;
Each passage thickness distributes normal value G[i] as the target reduction ratio ratio that this road secondary segment thickness distributes, each percentage pass reduction ratio after requiring to distribute meets following condition:
ε[i]:ε[i′]=G[i]:G[i′]
h[0]=h dmat[k]·(1-ε[0]/100)
h[i]=h[i-1]·(1-ε[i]/100) i=1,...,N[k]
Wherein: ε [i]-this percentage pass reduction, %; I, the passage number of i '-Ben Dao secondary segment; H[i]-each passage exit thickness after distributing, mm;
At first, according to each passage average relative drafts of section gateway THICKNESS CALCULATION; Secondly, according to each passage mill condition value of section, calculate each passage relative reduction; Again, according to relative reduction, calculate each passage exit thickness; Again, according to the difference of section exit thickness calculated value and desired value, adjust each passage relative reduction, until the section exit thickness is consistent with desired value, completes this section thickness and distribute;
3c), after each passage thickness distributes, determine each passage mill speed according to rate curve, as follows:
V[i]=c 1·ln(h[i])+c 0
The recommendation mill speed that wherein: V[i]-this passage thickness is corresponding, m/min;
3d), after each passage thickness distributes, determine each passage gateway tension force according to tensiometer;
3e) according to the rolling procedure of each passage of this section of calculated with mathematical model, control parameter, and check according to unit power energy limit parameter, while transfiniting, this section rolling procedure is revised until meet each restrictive condition, as follows:
P min≤P[i]≤P max
M[i]≤M max
W[i]≤W max
Wherein: P[i], P min, P maxThe calculated value of-draught pressure, minimum of a value, maximum, kN; M[i], M maxThe calculated value of-roll torque, maximum, kN*m; W[i], W maxThe calculated value of-rolling power, maximum, kW;
Each passage draught pressure, roll torque, rolling power power energy parameter are checked, after when draught pressure, roll torque transfinite, revising this section rolling pass number, re-start calculating, after when rolling power transfinites, revising this passage mill speed, re-start calculating, until meet each restrictive condition;
(4) repeating step (3) completes the rolling schedule calculation of each rolling section, realizes the automatic generation of this rolling rules processed.
The substantive distinguishing features that technical solution of the present invention is outstanding and significant progressive being mainly reflected in:
Raw material and finished product parameter request according to the aluminium volume, with the finished material state, determine the intermediate annealing process parameter in rolling procedure, with parameter curve, determine the technological parameters such as rolling pass number and each passage thickness, mill speed, according to the calculated with mathematical model rolling procedure, control parameter and check correction according to unit power energy parameter again, realizing the automatic generation of aluminium rolling rules processed.Solved some unreasonable problems of rolling procedure making in the prior art, one is systematically considered the factors such as end properties requirement, material processing technique characteristic, milling train power energy parameter limit comprehensively; Its two, according to the definition of the finished product state of material and parameter curve, be rolled procedure making, be convenient to safeguard expansion according to material, form systematized rolling procedure generation technique.This method can be formulated scientific and reasonable rolling procedure for the different rolling specs of each material, and have the characteristics such as computational speed is fast, practical, be the important foundation that realizes aluminium cold continuous rolling Process Control System, can improve unit rolling process stability and production efficiency.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1: based on the realization flow schematic diagram of the aluminum cold-rolling mill rolling procedure generation method of materials behavior and parameter curve.
The specific embodiment
The invention provides a kind of rolling procedure of aluminum cold-rolling mill based on materials behavior and parameter curve generation method, as Fig. 1, concrete flow process:
1) aluminium volume raw material finished product parameter reads, and inquires about according to material finished product state definition, reduction ratio parameter of curve, the mill speed parameter of curve of obtaining this material;
2) according to aluminium, be rolled into the product state, according to the finished product state definition, determine the intermediate annealing parameter;
3), according to the intermediate annealing parameter, divide the rolling section;
4)k=0;
5) k rolling section, from the section inlet thickness, calculate lower passage thickness to the section of being less than exit thickness successively by depressing rate curve, determines section road number of times;
6) k rolling section, according to thickness Ji Duan road, section gateway number of times, determine the percentage pass reduction ratio by depressing rate curve, calculates each passage thickness;
7) k rolling section, according to each passage thickness, according to mill speed curve, tensiometer, determine passage mill speed and gateway tension force;
8) k rolling section, each passage are pressed the technological parameters such as thickness, speed, tension force and are calculated rules control parameter, and check correction by unit power energy parameter, complete rolling schedule calculation;
9) k+1, return to 5) complete successively the rolling schedule calculation of whole roads secondary segment;
10) each rolling section is calculated and is finished, and this aluminium rolling rules processed generate and finish.
The rolling procedure generative process of certain 1850mm aluminium single-stand cold-rolling machine ideal format aluminium volume of take is example, and technical solution of the present invention is described in further detail, and aluminium volume parameter is as follows: material 5052, width 1600mm, raw thickness 8.0mm, finished product thickness 0.2mm, finished product state H12.
1) aluminium volume raw material finished product parameter reads, and material is 5052, and finished product state definition, reduction ratio parameter of curve, the mill speed parameter of curve of this material obtained in inquiry according to material;
2) according to aluminium, be rolled into product state H12, according to finished product state definition, requiring finished product accumulative total reduction ratio is 25%, and the maximum of this material to allow the accumulative total reduction ratio be 90%, calculate the intermediate annealing parameter;
According to the required accumulative total reduction ratio of finished product state, according to finished product thickness, calculate and realize the intermediate annealing thickness that this reduction ratio is required, as follows:
h ann=h aim/(1-ε aim/100)=0.2/(1-25/100)=0.25
Largest cumulative reduction ratio according to this material allows, calculate each interior thickness successively according to raw thickness and largest cumulative reduction ratio, until it is less than the required intermediate annealing thickness of finished product state:
h mid[0]=h mat·(1-ε max/100)=8.0·(1-90/100)=0.8
h mid[1]=h mid[0]·(1-ε max/100)=0.8·(1-90/100)=0.08
Due to h mid[1]<=h ann, h mid[1]=h ann=0.25, the interior thickness sequence number is 1 to the maximum, total rolling hop count K=3.
3) according to the intermediate annealing parameter, divide the rolling section, the gateway thickness of each rolling section is as follows:
h dmat[k]=h mat=8.0,h daim[k]=h mid[k]=0.8,k=0;
h dmat[k]=h mid[k-1]=0.8,h daim[k]=h mid[k]=0.25,k=1;
h dmat[k]=h mid[k-1]=0.25,h daim[k]=h aim=0.2,k=2;
4)k=0;
5) k rolling section, from section inlet thickness 8.0mm, calculate lower passage thickness to the section of being less than exit thickness 0.8mm successively by depressing rate curve, as shown in the table:
After reduction ratio curve calculation 6 times, the exit thickness section of being less than exit thickness 0.8mm, determine this rolling Duan De road number of times N[k] be 6.
6) k rolling section, according to k rolling Duan De road number of times, calculate each passage thickness according to standard criterion curve (5 point curve) and distribute normal value, as follows:
G [ i ] = d 2 &CenterDot; ( 5 * i N [ k ] ) 2 + d 1 &CenterDot; ( 5 * i N [ k ] ) + d 0
According to the mill condition value, carry out the thickness Distribution Calculation, each percentage pass reduction ratio after requiring to distribute is with each passage mill condition value than consistent, and the thickness allocation result is as follows:
7) k rolling section, according to each passage thickness, according to mill speed curve, tensiometer, determine passage mill speed and gateway tension force, as follows:
8) k rolling section, each passage are pressed the technological parameters such as thickness, speed, tension force and are calculated rules control parameter, and check correction by unit power energy parameter, complete rolling schedule calculation, as follows:
9) k+1, return to 5) complete successively the rolling schedule calculation of whole roads secondary segment;
10) each rolling section is calculated and is finished, and this aluminium rolling rules processed generate and finish, and result is as follows.
The present invention is according to raw material and the finished product parameter request of aluminium volume, with the finished material state, determine the intermediate annealing process parameter in rolling procedure, with parameter curve, determine the technological parameters such as rolling pass number and each passage thickness, mill speed, according to the calculated with mathematical model rolling procedure, control parameter and check correction according to unit power energy parameter again, realizing the automatic generation of aluminium rolling rules processed.Solved some unreasonable problems of rolling procedure making in the prior art, one is systematically considered the factors such as end properties requirement, material processing technique characteristic, milling train power energy parameter limit comprehensively; Its two, according to the definition of the finished product state of material and parameter curve, be rolled procedure making, be convenient to safeguard expansion according to material, form systematized rolling procedure generation technique.This method can be formulated scientific and reasonable rolling procedure for the different rolling specs of each material, and have the characteristics such as computational speed is fast, practical, be the important foundation that realizes aluminium cold continuous rolling Process Control System, can improve unit rolling process stability and production efficiency.
Be only below concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on rights protection scope of the present invention.

Claims (2)

1. based on the aluminum cold-rolling mill rolling procedure generation method of materials behavior and parameter curve, it is characterized in that: for the raw material finished product parameter request of aluminium volume, with the finished material state, determine the intermediate annealing process parameter in rolling procedure, with parameter curve, determine rolling pass number and each passage thickness, mill speed, tension force technological parameter, according to calculated with mathematical model, go out to meet again the rolling procedure control parameter of unit power energy parameter limit, realize the automatic generation of aluminium rolling rules processed, step is:
(1) rule of thumb reach measured data, determine the finished product state definition according to the material difference, and according to the curvilinear function form, simulate the function parameter of reduction ratio curve, mill speed curve;
(2) according to aluminium volume raw material finished product parameter request, by aluminium, be rolled into the definition of product status poll material finished product state, obtain the required accumulative total reduction ratio of finished product state and corresponding finished product treatment process sign, and according to the largest cumulative reduction ratio that this material allows, be rolled the calculating of rules intermediate annealing parameter, determine the gateway thickness of total rolling hop count and each rolling section;
(3) carry out successively the rolling schedule calculation of each rolling section, gateway thickness according to k rolling section, after with reduction ratio, mill speed curve, determining section rolling pass number and each passage thickness, mill speed, tension force technological parameter, then control parameter according to the rolling procedure that calculated with mathematical model goes out to meet unit power energy parameter limit;
3a), according to the gateway thickness of k rolling section, determine section road number of times according to the reduction ratio curve;
3b) according to k rolling Duan Deduan road number of times, according to each passage thickness of standard criterion curve calculation, distribute normal value, the target reduction ratio ratio distributed as this road secondary segment thickness carries out the thickness distribution;
3c), after each passage thickness distributes, determine each passage mill speed according to rate curve, determine each passage gateway tension force according to tensiometer;
3d) according to the rolling procedure of each passage of this section of calculated with mathematical model, control parameter, and check correction according to unit power energy limit parameter;
(4) repeating step (3) completes the calculating of each section rules, generates this rolling rules processed.
2. the rolling procedure of the aluminum cold-rolling mill based on materials behavior and parameter curve generation method according to claim 1 is characterized in that step is:
(1) rule of thumb reach measured data, according to the material difference, determine the finished product state definition, and according to the curvilinear function form, simulate the function parameter of reduction ratio curve, mill speed curve;
1a), in the definition of material finished product state, for various finished product state codes, determine accumulative total reduction ratio, the finished product treatment process of its requirement, and the largest cumulative reduction ratio of this material permission;
1b) reduction ratio curve, adopt curvilinear function to describe thickness and the corresponding relation of recommending reduction ratio, as follows:
ε=b 2·h 2+b 1·h+b 0
In formula: the recommendation reduction ratio that ε-this thickness is corresponding, %; H-passage thickness, mm; b 2, b 1, b 0-reduction ratio curve coefficients;
1c) mill speed curve, adopt curvilinear function to describe thickness and the corresponding relation of recommending mill speed, as follows:
V=c 1·ln(h)+c 0
In formula: the recommendation mill speed that this thickness of V-is corresponding, m/min; c 1, c 0-mill speed curve coefficients;
(2) according to aluminium volume raw material finished product parameter request, by aluminium, be rolled into the definition of product status poll material finished product state, obtain the required accumulative total reduction ratio of this finished product state and corresponding finished product treatment process sign, and according to the largest cumulative reduction ratio that this material allows, be rolled the calculating of rules intermediate annealing parameter, and then determine the gateway thickness of total rolling hop count and each rolling section;
2a) according to the required accumulative total reduction ratio of finished product state, according to finished product thickness, calculate and realize the intermediate annealing thickness that this reduction ratio is required, as follows:
h ann=h aim/(1-ε aim/100)
In formula: h annThe intermediate annealing thickness of-requirement, mm; h aim-aluminium is rolled into product thickness, mm; ε aim-aluminium is rolled into the accumulative total reduction ratio of product state requirement, %;
Largest cumulative reduction ratio 2b) allowed according to this material, calculate each interior thickness successively according to raw thickness and largest cumulative reduction ratio, as follows:
h mid[0]=h mat·(1-ε max/100)
h mid[j]=h mid[j-1]·(1-ε max/100) j=1,...,J
In formula: h midThe interior thickness that [j]-largest cumulative reduction ratio is corresponding, mm; h mat-aluminium volume raw thickness, mm; ε maxThe largest cumulative reduction ratio that-aluminium coiled material matter allows, %; J-interior thickness sequence number; The maximum of J-interior thickness sequence number;
Work as h mid[j] is less than the required intermediate annealing thickness h of finished product state annThe time, h mid[j]=h ann, stopping interior thickness and calculate, j value now is the maximum sequence number J of interior thickness;
H 2c) required according to finished product state ann, each intermediate annealing thickness h mid[j] parameter, determine total rolling hop count;
Work as h ann=h aimThe time, when namely the finished product state requires without the accumulative total reduction ratio, K=J+1;
Work as h annH aimThe time, when namely the finished product state has the requirement of accumulative total reduction ratio, K=J+2;
In formula: the total rolling hop count of K-;
2d) after determining total rolling hop count, according to the required intermediate annealing thickness h of finished product state ann, each intermediate annealing thickness h mid[j] parameter is determined the gateway parameter of each rolling section, as follows:
h dmat[k]=h mat,h daim[k]=h mid[k],k=0
h dmat[k]=h mid[k-1],h daim[k]=h mid[k],k=1,...,K-2
h dmat[k]=h mid[k-1],h daim[k]=h aim,k=K-1
In formula: k-rolling section sequence number; h midThe interior thickness that-largest cumulative reduction ratio is corresponding, mm; h DmatThe inlet thickness of [k]-k rolling section, mm; h DaimThe exit thickness of [k]-k rolling section, mm;
(3) carry out successively the rolling schedule calculation of each k rolling section, gateway thickness according to k rolling section, after with reduction ratio, mill speed curve, determining section rolling pass number and each passage thickness, mill speed, tension force technological parameter, then control parameter according to the rolling procedure that calculated with mathematical model goes out to meet unit power energy parameter limit;
3a), according to the gateway thickness of k rolling section, calculate successively each interim thickness according to the reduction ratio curve, as follows:
h temp[0]=h dmat[k]·(1-ε temp[0]/100)
ε temp[0]=b 2·h dmat[k] 2+b 1·h dmat[k]+b 0
h temp[i]=h temp[i-1]·(1-ε temp[i]/100) i=1,...,N[k]-1
ε temp[i]=b 2·h temp[i] 2+b 1·h temp[i]+b 0
In formula: h TempThe interim thickness that [i]-successively calculates, mm; ε Temp[i]-according to the recommendation reduction ratio of reduction ratio curve according to THICKNESS CALCULATION, %; I-k rolling Duan De road sequence number; N[k]-k rolling Duan Dezong road number of times, work as h Temp[i]<=h DaimWhen [k], stop the calculating successively of interim thickness, now i+1 is k rolling Duan Dezong road number of times N[k];
3b) according to k rolling Duan Deduan road number of times, according to each passage thickness of standard criterion curve calculation, distribute normal value, as follows:
G [ i ] = d 2 &CenterDot; ( 5 * i N [ k ] ) 2 + d 1 &CenterDot; ( 5 * i N [ k ] ) + d 0
In formula: G[i]-each passage normal value, %; d 2, d 1, d 0-standard criterion curve coefficients;
Each passage thickness distributes normal value G[i] as the target reduction ratio ratio that this road secondary segment thickness distributes, each percentage pass reduction ratio after requiring to distribute meets following condition:
ε[i]:ε[i′]=G[i]:G[i′]
h[0]=h dmat[k]·(1-ε[0]/100)
h[i]=h[i-1]·(1-ε[i]/100) i=1,...,N[k]
Wherein: ε [i]-this percentage pass reduction, %; I, the passage number of i '-Ben Dao secondary segment; H[i]-each passage exit thickness after distributing, mm;
At first, according to each passage average relative drafts of section gateway THICKNESS CALCULATION; Secondly, according to each passage mill condition value of section, calculate each passage relative reduction; Again, according to relative reduction, calculate each passage exit thickness; Again, according to the difference of section exit thickness calculated value and desired value, adjust each passage relative reduction, until the section exit thickness is consistent with desired value, completes this section thickness and distribute;
3c), after each passage thickness distributes, determine each passage mill speed according to rate curve, as follows:
V[i]=c 1·ln(h[i])+c 0
The recommendation mill speed that wherein: V[i]-this passage thickness is corresponding, m/min;
3d), after each passage thickness distributes, determine each passage gateway tension force according to tensiometer;
3e) according to the rolling procedure of each passage of this section of calculated with mathematical model, control parameter, and check according to unit power energy limit parameter, while transfiniting, this section rolling procedure is revised until meet each restrictive condition, as follows:
P min≤P[i]≤P max
M[i]≤M max
W[i]≤W max
Wherein: P[i], P min, P maxThe calculated value of-draught pressure, minimum of a value, maximum, kN; M[i], M maxThe calculated value of-roll torque, maximum, kN*m; W[i], W maxThe calculated value of-rolling power, maximum, kW;
Each passage draught pressure, roll torque, rolling power power energy parameter are checked, after when draught pressure, roll torque transfinite, revising this section rolling pass number, re-start calculating, after when rolling power transfinites, revising this passage mill speed, re-start calculating, until meet each restrictive condition;
(4) repeating step (3) completes the rolling schedule calculation of each rolling section, realizes the automatic generation of this rolling rules processed.
CN201310337098.5A 2013-08-05 2013-08-05 Based on the aluminum cold-rolling mill rolling procedure generation method of materials behavior and parameter curve Active CN103406361B (en)

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CN106903173A (en) * 2017-02-24 2017-06-30 北京科技大学 A kind of rolling schedule optimization method based on equal load function method
CN108687139A (en) * 2018-04-17 2018-10-23 燕山大学 One kind is suitable for rolling stability check method under the conditions of secondary cold-rolling unit small deformation
CN109702021A (en) * 2017-10-25 2019-05-03 上海宝信软件股份有限公司 Reversible Single Stand Cold Rolling Mill group passage load distribution method

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CN106903173A (en) * 2017-02-24 2017-06-30 北京科技大学 A kind of rolling schedule optimization method based on equal load function method
CN109702021A (en) * 2017-10-25 2019-05-03 上海宝信软件股份有限公司 Reversible Single Stand Cold Rolling Mill group passage load distribution method
CN109702021B (en) * 2017-10-25 2020-04-24 上海宝信软件股份有限公司 Single-rack reversible cold rolling unit pass load distribution method
CN108687139A (en) * 2018-04-17 2018-10-23 燕山大学 One kind is suitable for rolling stability check method under the conditions of secondary cold-rolling unit small deformation
CN108687139B (en) * 2018-04-17 2020-02-25 燕山大学 Rolling stability checking method suitable for secondary cold rolling unit under small deformation condition

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