CN116921447A - Dynamic setting method for target plate shape of cold-rolled strip steel - Google Patents
Dynamic setting method for target plate shape of cold-rolled strip steel Download PDFInfo
- Publication number
- CN116921447A CN116921447A CN202210319732.1A CN202210319732A CN116921447A CN 116921447 A CN116921447 A CN 116921447A CN 202210319732 A CN202210319732 A CN 202210319732A CN 116921447 A CN116921447 A CN 116921447A
- Authority
- CN
- China
- Prior art keywords
- edge
- shape
- cold
- target
- plate shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 74
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 67
- 239000010959 steel Substances 0.000 title claims abstract description 67
- 238000012937 correction Methods 0.000 claims abstract description 66
- 239000004973 liquid crystal related substance Substances 0.000 claims description 46
- 238000005516 engineering process Methods 0.000 claims description 6
- 239000010960 cold rolled steel Substances 0.000 claims 5
- 238000005097 cold rolling Methods 0.000 description 21
- 238000005096 rolling process Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000013178 mathematical model Methods 0.000 description 4
- 239000013072 incoming material Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
A dynamic setting method of target plate shape of cold-rolled strip steel is characterized in that on the basis of basic plate shape represented by polynomial target function, correction of the edge plate shape is established through the set edge plate shape correction function, and accordingly dynamic setting is completed; the correction of the edge shape is carried out according to the real-time process strip steel width and thickness. The invention provides a dynamic setting method of a target plate shape of cold-rolled strip steel, which aims at establishing plate shape correction based on the width and thickness of the strip steel in real time aiming at the edge plate shape with larger fluctuation and provides a method for integrally and dynamically adjusting the target plate shape.
Description
Technical Field
The invention belongs to the field of cold rolling, and particularly relates to a dynamic setting method of a target plate shape of cold-rolled strip steel.
Background
The shape is an important quality index of the cold-rolled strip steel, and the shape of the cold-rolled strip steel directly influences the productivity, the yield and the cost of downstream industries such as automobiles, household appliances, instruments, food packaging and the like and the appearance of products, so that the shape automatic control technology is adopted in the cold-rolling production, and the shape quality of the strip steel is improved.
As cold-rolled products are developed toward thin, wide, and high strength, the problem of cold-rolled sheet shape is increasingly prominent and complicated. The problem of the edge waves of the cold-rolled strip steel is one of the technical problems puzzling the steel enterprises, and the detection difficulty and the control difficulty are high, so that the overall product quality of the rolled strip steel is greatly influenced.
The target plate shape considers the system measurement error and the plate shape requirement of the next procedure on the cold rolling procedure, and the application of the target plate shape considers the progress of the plate shape measurement technology and the plate shape control technology, thereby having important significance for the plate shape control. Therefore, in cold rolling production, the target plate shape setting method is an important means for ensuring the quality of the product.
The application number is: the invention application of CN200810011561.6 discloses a design method of a cold-rolled strip steel plate shape control target model, which is used for determining a mathematical model for describing strip steel flatness control according to the characteristics of the cold-rolled strip steel plate shape, the structure and working principle of a rolling mill plate shape control actuator and mathematical constraint conditions which are required to be met by the target plate shape; different control parameters in a plate shape target model are determined according to different process quality requirements of varieties and specifications of rolled strip steel, requirements of different treatment procedures after rolling on strip steel plate shape, and roller abrasion and thermal convexity change in the rolling process, so that different target plate shape curves are formed and used for calculation of a cold rolling process control mathematical model and basic automation real-time plate shape control. The optimally designed plate shape control model can meet the rolling requirements of strip steel of different varieties and specifications of a cold rolling mill, reduce the occurrence of strip breakage during rolling of the strip steel with extremely thin specifications, and simultaneously meet the plate shape requirements of the raw material cold-rolled strip steel during different processes of cold rolling subsequent electrolytic cleaning, bell-type furnace annealing, continuous galvanization, continuous annealing and the like.
The application number is: the invention application of CN201310057798.9 discloses a "target strip shape setting method", comprising steps S100 to S400, wherein in step S100, a target strip shape rolling force compensation value, a coverage rate compensation coefficient, and an outlet thickness compensation coefficient at the rolling force fluctuation stage are determined; in step S200, determining a target plate shape edge compensation value in the rolling force fluctuation stage; in step S300, a dynamic target plate shape curve is determined; finally, in step S400, the strip shape deviation is obtained according to the dynamic target shape curve and the measured curve, and the strip shape is adjusted.
The application number is: the invention application of CN201310753276.2 discloses a method for optimizing a plate-shaped target curve of a cold continuous rolling mill, which comprises the following steps: the plate-shaped target curve adopts a control mode of bilateral waves; optimizing a plate-shaped target curve to beWhere x' =2xb, x "= (x-x 0) (b 2-x 0).
The application number is: the invention application of CN201510540615.8 discloses a plate shape control method based on target plate shape setting of cold-rolled strip steel, wherein the control method firstly establishes a mathematical model of the cold-rolled target plate shape, sets control parameters in the mathematical model of the cold-rolled target plate shape under different rolling passes according to different rolling process requirements of the different rolling passes, determines a target plate shape curve, obtains a plate shape deviation curve by measuring actual plate shape curves of all passes in real time, establishes a plate shape control strategy library according to the plate shape deviation curve, sends control commands, and performs plate shape control.
The application number is: the invention application of CN201610059046.X discloses an intelligent setting method of online target plate shape of a cold-rolled strip, which comprises the following steps: splitting the plate shape curve into three types of an original plate shape detection curve, a process error plate shape compensation curve and a target plate shape curve, wherein the original plate shape detection curve and the process error plate shape compensation curve are overlapped to form an effective actually measured plate shape curve, namely an effective plate shape curve, and the target plate shape curve only needs to consider a plate shape regulation target which is required to be achieved by a subsequent process; establishing an online plate-shaped target curve based on a four-time Legend polynomial, satisfying the constraint condition that the residual stress deviation of the rolled strip is self-balanced along the width direction of the strip (namely, the transverse integral of the strip is zero), and ensuring clear target and definite function; and establishing a target plate shape standard curve library based on an intelligent algorithm to obtain optimal parameters of an online target plate shape and ensure plate shape control precision.
Disclosure of Invention
In order to solve the problems, the invention provides a dynamic setting method for a target plate shape of cold-rolled strip steel, which comprises the following steps:
a dynamic setting method for a target plate shape of cold-rolled strip steel is characterized by comprising the following steps:
on the basis of basic plate shape represented by polynomial objective function, setting up correction of the edge plate shape by the set edge plate shape correction function, thereby completing dynamic setting;
the correction of the edge shape is carried out according to the real-time process strip steel width and thickness.
The dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
when L1 is received from L2, the width of the current strip steel is larger than the width limiting range
And is also provided with
When the current strip thickness from L1 to L2 is less than the thickness limit range,
then starting the form of the edge shape correction function with speed correction as the final edge shape correction function;
otherwise
And starting the edge shape correction function form with no speed correction as a final edge shape correction function.
The dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
the edge shape correction function is as follows:
δ(X)＝k×g(X)；
wherein, the liquid crystal display device comprises a liquid crystal display device,
delta (X): a side shape correction function;
k: the magnitude of the edge target plate curve;
g (X): an amplitude normalized edge shape function.
The dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
the edge shape correction function is as follows:
δ(X)＝k×g(X)；
wherein, the liquid crystal display device comprises a liquid crystal display device,
delta (X): a side shape correction function;
k: the magnitude of the edge target plate curve;
g (X): normalized edge shape function.
The dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
when the edge shape correction function is in the form of an edge shape correction function without speed correction,
k＝k man ，
when the edge shape correction function is in the form of an edge shape correction function with speed correction,
k＝k man +k auto ，
wherein, the liquid crystal display device comprises a liquid crystal display device,
k: the magnitude of the edge target plate curve;
k man : amplitude set by an operator;
k auto : a set amplitude related to the speed.
The dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
said k auto Determined according to the following equation:
k auto ＝(v-v max )×β，
wherein, the liquid crystal display device comprises a liquid crystal display device,
v: the current technology of the strip steel sets the movement speed in units: m/s;
v max : the set maximum strip steel movement speed is as follows: m/s;
beta: influence coefficient of strip speed on the amplitude of the edge target plate curve.
The dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
g (X) is determined according to the following formula:
wherein, the liquid crystal display device comprises a liquid crystal display device,
b: the width of the edge plate is from the outermost sides of the two sides to the central direction. .
The dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
the dynamically set function is expressed as:
f new ＝f(x)+δ(x)，
and is also provided with
In the above-mentioned method, the step of,
f new : a dynamically set function;
f (x): a conventional target plate equation;
delta (x): edge shape correction function.
The dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
the specific expression of f (x) is as follows:
f(x)＝(a 1 x+a 2 x 2 +···+a n x n )×g m
and, in addition, the method comprises the steps of,
in the above-mentioned method, the step of,
the value range of x is [ -1.0.1.0 ];
the maximum value of n is 8;
g m : the magnitude of the target plate curve.
The dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
said k man The value range is 0 to 10, unit: I.
the dynamic setting method of the target plate shape of the cold-rolled strip steel is characterized by comprising the following steps of:
the value range of beta is 0.1 to 0.5, and the unit is: i/m/s.
The invention discloses a dynamic setting method of a target plate shape of cold-rolled strip steel, which aims at the problems of detection and control of the actual plate shape of the edge part of the thin and wide strip steel, establishes plate shape correction based on the width and thickness of the strip steel in real time aiming at the plate shape of the edge part with larger fluctuation, and provides a method for integrally and dynamically adjusting the target plate shape. After the method is applied to a cold rolling mill control system, the standard of the physical shape of the cold rolling mill in a steady speed stage can be ensured, and the standard of the physical shape of the cold rolling mill in a lifting speed stage can be ensured. Meanwhile, the labor intensity of cold rolling operators can be reduced, and the automation control level of cold rolling is improved.
Drawings
FIG. 1 is a graph of a base plate shape characterized by a polynomial objective function in accordance with the present invention;
FIG. 2 is a graph of a target plate shape based on edge dynamic setting in accordance with the present invention;
FIG. 3 is a schematic diagram of monitoring logic for edge target plate shape amplitude in an embodiment of the present invention.
Detailed Description
The method for dynamically setting the target plate shape of the cold-rolled strip steel according to the invention is further specifically described below according to the drawings and the specific embodiments of the specification.
A dynamic setting method of target plate shape of cold-rolled strip steel,
on the basis of basic plate shape represented by polynomial objective function, setting up correction of the edge plate shape by the set edge plate shape correction function, thereby completing dynamic setting;
the correction of the edge shape is carried out according to the real-time process strip steel width and thickness.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
when L1 is received from L2, the width of the current strip steel is larger than the width limiting range
And is also provided with
When the current strip thickness from L1 to L2 is less than the thickness limit range,
then starting the form of the edge shape correction function with speed correction as the final edge shape correction function;
otherwise
And starting the edge shape correction function form with no speed correction as a final edge shape correction function.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
the edge shape correction function is as follows:
δ(X)＝k×g(X)；
wherein, the liquid crystal display device comprises a liquid crystal display device,
delta (X): a side shape correction function;
k: the magnitude of the edge target plate curve;
g (X): an amplitude normalized edge shape function.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
when the edge shape correction function is in the form of an edge shape correction function without speed correction,
k＝k man ，
when the edge shape correction function is in the form of an edge shape correction function with speed correction,
k＝k man +k auto ，
wherein, the liquid crystal display device comprises a liquid crystal display device,
k: the magnitude of the edge target plate curve;
k man : amplitude set by an operator;
k auto : a set amplitude related to the speed.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
said k auto Determined according to the following equation:
k auto ＝(v-v max )×β，
wherein, the liquid crystal display device comprises a liquid crystal display device,
v: the current technology of the strip steel sets the movement speed in units: m/s;
v max : the set maximum strip steel movement speed is as follows: m/s;
beta: influence coefficient of strip speed on the amplitude of the edge target plate curve.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
g (X) is determined according to the following formula:
wherein, the liquid crystal display device comprises a liquid crystal display device,
b: the width of the edge plate is from the outermost sides of the two sides to the central direction.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
the dynamically set function is expressed as:
f new ＝f(x)+δ(x)，
and is also provided with
In the above-mentioned method, the step of,
f new : a dynamically set function;
f (x): a conventional target plate equation;
delta (x): edge shape correction function.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
the specific expression of f (x) is as follows:
f(x)＝(a 1 x+a 2 x 2 +···+a n x n )×g m
and, in addition, the method comprises the steps of,
in the above-mentioned method, the step of,
the value range of x is [ -1.0.1.0 ];
the maximum value of n is 8;
g m : the magnitude of the target plate curve.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
said k man The value range is 0 to 10, unit: I.
wherein, the liquid crystal display device comprises a liquid crystal display device,
the value range of beta is 0.1 to 0.5, and the unit is: i/m/s.
Working process, principle
Conventional cold-rolled target sheet shapes take the form of polynomials:
f(x)＝(a 1 x+a 2 x 2 +···+a n x n )×g m (1)
wherein, the value range of x is [ -1.0.1.0]The method comprises the steps of carrying out a first treatment on the surface of the The maximum value of n is 8; g m The amplitude of the target plate curve;
in addition, the target plate shape curve also needs to satisfy the following conditions:
a conventional target plate shape curve is shown in fig. 1. In the cold rolling production process, an operator can adjust the shape of the target plate shape curve by adjusting the polynomial coefficient and the magnitude. The invention provides a correction method based on the expression: due to the requirements of the subsequent cold rolling process and the characteristics of the cold rolling production process, the dynamic setting of the edge target plate shape is related to the incoming material characteristics, the cold rolling production speed and the like.
The new target plate equation based on the edge target plate dynamic setting is as follows:
f new ＝f(x)+δ(x) (3)
in the above formula, the value range of x is still [ -1.0.1.0 ], f (x) is a conventional target plate equation, and δ (x) is an edge target plate equation (i.e. the edge plate correction function in the above description). The edge target plate equation δ (x) is defined as follows:
in the above formula, k is the amplitude of the edge target plate curve; b is the width of the edge plate shape from the outermost sides to the center direction.
In addition, the new target plate shape curve also needs to satisfy the following conditions:
the new target plate shape curve is shown in fig. 2.
In the edge target plate equation shown in the formula (4), b is generally set to a fixed value, and the setting of the amplitude k is manually set by an operator to k man And automatically setting k by a program auto The composition is as follows:
k＝k man +k auto (6)
when the width of the strip steel is increased to a certain value and the thickness of the strip steel is reduced to a certain value, the actual plate shape detection and control difficulty of the edge part are increased in a low-speed stage, and therefore the target plate shape amplitude of the edge part needs to be dynamically set.
When w > w m and h＜h m When k is auto ＝(v-v max ) X beta is otherwise k auto ＝0 (7)
In the above formula, w and h respectively represent the width and thickness of the strip steel, w m And h m Respectively representing the width amplitude limiting range and the thickness amplitude limiting range of the strip steel, v represents the movement speed of the strip steel, v max And (5) representing the set maximum strip steel movement speed, wherein beta is the influence coefficient of the strip steel speed on the edge target plate curve amplitude. The specific edge target plate shape magnitude calculation process is shown in fig. 3.
Examples
The raw steel grade of the cold rolled plate in the embodiment is IV8290E1, the yield strength is 800MPa, and the thickness specification of the incoming material is as follows: 2.82mm, the incoming material width specification is: 1000 mm-1200 mm, the thickness specification of the finished product is as follows: 1.1 to 1.3mm. Maximum speed V of strip steel max =18.0m/s, thickness limit value h m =1.2 mm, width limiting value w m Width of edge target plate shape =1100 mmThe influence coefficient β=0.3I/m/s of the strip speed on the amplitude of the edge target strip curve.
Example 1:
when the strip steel with the thickness specification h of 1.24mm and the width specification w of 1155mm is produced, the thickness specification h is equal to the thickness specification h>h m Thus, k is obtained according to formula (7) auto ＝0.0。
Example 2:
in the production of a strip steel with a finished thickness h of 1.1mm and a finished width w of 1055mm, the thickness h is equal to the finished width w<w m Thus, k is obtained according to formula (7) auto ＝0.0。
Example 3:
when the strip steel with the thickness specification h of 1.1mm and the width specification w of 1155mm is produced, the thickness specification h is equal to the width specification w>w m And h is<h m ，k auto Not equal to 0.0, the result is as follows according to formula (7):
k when the velocity is v=15.0 m/s auto ＝(v-v max )×β＝(15-18)×0.3＝-0.9
K when the velocity is v=8.0 m/s auto ＝(v-v max )×β＝(8-18)×0.3＝-3.0
The invention discloses a dynamic setting method of a target plate shape of cold-rolled strip steel, which aims at the problems of detection and control of the actual plate shape of the edge part of the thin and wide strip steel, establishes plate shape correction based on the width and thickness of the strip steel in real time aiming at the plate shape of the edge part with larger fluctuation, and provides a method for integrally and dynamically adjusting the target plate shape. After the method is applied to a cold rolling mill control system, the standard of the physical shape of the cold rolling mill in a steady speed stage can be ensured, and the standard of the physical shape of the cold rolling mill in a lifting speed stage can be ensured. Meanwhile, the labor intensity of cold rolling operators can be reduced, and the automation control level of cold rolling is improved.
Claims (11)
1. A dynamic setting method for a target plate shape of cold-rolled strip steel is characterized by comprising the following steps:
on the basis of basic plate shape represented by polynomial objective function, setting up correction of the edge plate shape by the set edge plate shape correction function, thereby completing dynamic setting;
the correction of the edge shape is carried out according to the real-time process strip steel width and thickness.
2. The method for dynamically setting the target strip shape of the cold-rolled strip according to claim 1, wherein the method comprises the following steps:
when L1 is received from L2, the width of the current strip steel is larger than the width limiting range
And is also provided with
When the current strip thickness from L1 to L2 is less than the thickness limit range,
then starting the form of the edge shape correction function with speed correction as the final edge shape correction function;
otherwise
And starting the edge shape correction function form with no speed correction as a final edge shape correction function.
3. The method for dynamically setting the target strip shape of the cold-rolled strip according to claim 1, wherein the method comprises the following steps:
the edge shape correction function is as follows:
δ(X)＝k×g(X)；
wherein, the liquid crystal display device comprises a liquid crystal display device,
delta (X): a side shape correction function;
k: the magnitude of the edge target plate curve;
g (X): an amplitude normalized edge shape function.
4. The method for dynamically setting the target strip shape of the cold-rolled strip according to claim 2, wherein the method comprises the following steps:
the edge shape correction function is as follows:
δ(X)＝k×g(X)；
wherein, the liquid crystal display device comprises a liquid crystal display device,
delta (X): a side shape correction function;
k: the magnitude of the edge target plate curve;
g (X): an amplitude normalized edge shape function.
5. The method for dynamically setting a target strip shape for a cold-rolled steel strip according to claim 4, wherein:
when the edge shape correction function is in the form of an edge shape correction function without speed correction,
k＝k man ，
when the edge shape correction function is in the form of an edge shape correction function with speed correction,
k＝k man +k auto ，
wherein, the liquid crystal display device comprises a liquid crystal display device,
k: the magnitude of the edge target plate curve;
k man : amplitude set by an operator;
k auto : a set amplitude related to the speed.
6. The method for dynamically setting a target strip shape for a cold-rolled steel strip according to claim 5, wherein:
said k auto Determined according to the following equation:
k auto ＝(v-v max )×β，
wherein, the liquid crystal display device comprises a liquid crystal display device,
v: the current technology of the strip steel sets the movement speed in units: m/s;
v max : the set maximum strip steel movement speed is as follows: m/s;
beta: influence coefficient of strip speed on the amplitude of the edge target plate curve.
7. The method for dynamically setting a target strip shape of a cold-rolled steel strip according to claim 3 or 4, wherein: g (X) is determined according to the following formula:
wherein, the liquid crystal display device comprises a liquid crystal display device,
b: the width of the edge plate is from the outermost sides of the two sides to the central direction.
8. The method for dynamically setting the target strip shape of the cold-rolled strip according to claim 1, wherein the method comprises the following steps:
the dynamically set function is expressed as:
f new ＝f(x)+δ(x)，
and is also provided with
In the above-mentioned method, the step of,
f new : a dynamically set function;
f (x): a conventional target plate equation;
delta (x): edge shape correction function.
9. The method for dynamically setting a target strip shape of a cold-rolled strip according to claim 8, wherein:
the specific expression of f (x) is as follows:
f(x)＝(a 1 x+a 2 x 2 +···+a n x n )×g m
and, in addition, the method comprises the steps of,
in the above-mentioned method, the step of,
the value range of x is [ -1.0.1.0 ];
the maximum value of n is 8;
g m : the magnitude of the target plate curve.
10. The method for dynamically setting a target strip shape for a cold-rolled steel strip according to claim 5, wherein: said k man The value range is 0 to 10, singlyBits: I.
11. the method for dynamically setting a target strip shape for a cold-rolled steel strip according to claim 6, wherein: the value range of beta is 0.1 to 0.5, and the unit is: i/m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210319732.1A CN116921447A (en) | 2022-03-29 | 2022-03-29 | Dynamic setting method for target plate shape of cold-rolled strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210319732.1A CN116921447A (en) | 2022-03-29 | 2022-03-29 | Dynamic setting method for target plate shape of cold-rolled strip steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116921447A true CN116921447A (en) | 2023-10-24 |
Family
ID=88374044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210319732.1A Pending CN116921447A (en) | 2022-03-29 | 2022-03-29 | Dynamic setting method for target plate shape of cold-rolled strip steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116921447A (en) |
-
2022
- 2022-03-29 CN CN202210319732.1A patent/CN116921447A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110404978B (en) | Method for controlling micro-moderate wave rolling of hot-rolled strip steel at high precision | |
| CN110385340B (en) | Rolling method and device of double-stand temper mill | |
| CN102581025A (en) | Slight center wave control method for straightness of hot rolling strip steel | |
| CN114178314B (en) | Q390C rolling process for low-alloy high-strength hot rolled coil | |
| CN113751510B (en) | Rolling control method for strip steel | |
| CN114700368A (en) | Working roll shape for eliminating local high points of plate strip and design method | |
| CN113953479A (en) | Method for improving flanging of thin strip steel coil | |
| CN116921447A (en) | Dynamic setting method for target plate shape of cold-rolled strip steel | |
| CN110656234B (en) | Automatic distinguishing control method for maximum heating temperature of steel rolling heating furnace | |
| CN105983579B (en) | A kind of method for controlling leveling precision residual defects | |
| CN109513750B (en) | Convexity feedback method considering waveform adjustment among racks | |
| JP4705275B2 (en) | Optimal position setting and control method for rolling rolls and guides during asymmetric shape rolling | |
| CN113857297B (en) | Straightening machine plate shape control method and system | |
| CN106475422B (en) | High order board-shape control method | |
| CN110328237B (en) | Preparation method of large-size 5N high-purity aluminum target | |
| CN110064660B (en) | Method for controlling tower shape of steel coil | |
| CN114160588A (en) | Warping buckle head control method for rolling stainless steel composite plate | |
| CN112246880A (en) | Twenty-high rolling mill strip shape optimization control method based on feedforward-middle shifting compensation | |
| CN114309083B (en) | Technological method for improving high-strength steel plate shape | |
| CN114951300B (en) | Method for cooperatively controlling high-strength strip section profile and high-order wave shape | |
| CN113941606B (en) | Time lag control method for cold rolling full-hydraulic multi-roller straightening roll gap | |
| CN111530937B (en) | Rolled piece pre-bending control method | |
| CN113857267B (en) | Continuous casting and rolling method for full-frame high-speed steel long kilometer thin plate | |
| CN111451294B (en) | Method for improving strip shape precision of hot-rolled strip steel | |
| JP2004034032A (en) | Method for controlling edge drop in tandem cold- rolling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |