CN114769326A - Hot rolling roll gap contour construction method and system - Google Patents
Hot rolling roll gap contour construction method and system Download PDFInfo
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- CN114769326A CN114769326A CN202210297945.9A CN202210297945A CN114769326A CN 114769326 A CN114769326 A CN 114769326A CN 202210297945 A CN202210297945 A CN 202210297945A CN 114769326 A CN114769326 A CN 114769326A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
- B21B38/105—Calibrating or presetting roll-gap
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Abstract
The invention discloses a hot roll gap contour construction method and system, and relates to the technical field of hot roll gap contour calculation. The invention determines a first roll gap starting point coordinate and a first roll gap end point coordinate on a lower boundary curve of an upper roll and a second roll gap starting point coordinate and a second roll gap end point coordinate on an upper boundary curve of a lower roll according to the length of a working roll and the width of a rolled product, intercepts an upper profile curve of the roll gap from the lower boundary curve of the upper roll according to the first roll gap starting point coordinate and the first roll gap end point coordinate, intercepts a lower profile curve of the roll gap from the upper boundary curve of the lower roll according to the second roll gap starting point coordinate and the second roll gap end point coordinate, subtracts the lower profile curve of the roll gap from the upper profile curve of the roll gap to obtain a profile curve of the roll gap thickness, and can effectively construct a roll gap profile.
Description
Technical Field
The invention relates to the technical field of hot roll gap contour calculation, in particular to a hot roll gap contour construction method and system.
Background
The hot rolling roll gap contour is a roll gap thickness contour between the lower boundary of the upper roll and the upper boundary of the lower roll at the position of a rolled product, the hot rolling roll gap contour is an important mode of product contour control and quality evaluation, the new roll gap contour can be equivalently calculated through a basic formula equation, but the worn working roll is complex in roll shape and cannot be accurately expressed through a multinomial mode, and the traditional equation calculation mode cannot be used for effectively expressing the roll gap contour.
Disclosure of Invention
The invention provides a method and a system for constructing a roll gap profile of a hot rolling mill, and solves the technical problem of how to effectively construct the roll gap profile.
On one hand, the invention provides the following technical scheme:
a hot roll gap profile construction method comprising:
acquiring the length of a working roller and the width of a rolled product, wherein the working roller comprises an upper roller and a lower roller;
acquiring a lower boundary curve of the upper roller; acquiring an upper boundary curve of the lower roller;
determining a first roll gap starting point coordinate and a first roll gap end point coordinate on the lower boundary curve, and a second roll gap starting point coordinate and a second roll gap end point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product;
intercepting an upper contour curve of the roll gap from the upper boundary curve according to the first roll gap starting point coordinate and the first roll gap end point coordinate, and intercepting a lower contour curve of the roll gap from the upper boundary curve according to the second roll gap starting point coordinate and the second roll gap end point coordinate;
and subtracting the lower contour curve of the roll gap from the upper contour curve of the roll gap to obtain a thickness contour curve of the roll gap.
Preferably, the acquiring of the lower boundary curve of the upper roller includes:
acquiring an upper boundary curve of the upper roller;
and taking a curve which is symmetrical to the upper boundary curve of the upper roller along the horizontal axis of the upper roller as the lower boundary curve of the upper roller.
Preferably, the determining a first roll gap starting point coordinate and a first roll gap ending point coordinate on the lower boundary curve and a second roll gap starting point coordinate and a second roll gap ending point coordinate on the upper boundary curve according to the lengths of the work rolls and the width of the rolled product includes:
X1＝L/2-W/2，X2＝L/2+W/2，X3＝L/2-W/2，X4＝L/2+W/2；
x1 is the first roll gap start coordinate, X2 is the first roll gap end coordinate, X3 is the second roll gap start coordinate, X4 is the second roll gap end coordinate, L is the length of the work roll, and W is the width of the rolled product.
Preferably, the determining a first roll gap starting point coordinate and a first roll gap ending point coordinate on the lower boundary curve and a second roll gap starting point coordinate and a second roll gap ending point coordinate on the upper boundary curve according to the lengths of the work rolls and the width of the rolled product includes:
acquiring the roll shifting amount of the working roll;
and determining the first roll gap starting point coordinate, the first roll gap end point coordinate, the second roll gap starting point coordinate and the second roll gap end point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product.
Preferably, the determining the first roll gap start coordinate, the first roll gap end coordinate, the second roll gap start coordinate and the second roll gap end coordinate according to the roll shifting amount, the length of the work roll and the width of the rolled product comprises:
X1＝L/2-K-W/2，X2＝L/2-K+W/2，X3＝L/2+K-W/2，X4＝L/2+K+W/2；
x1 is the first roll gap starting point coordinate, X2 is the first roll gap terminal point coordinate, X3 is the second roll gap starting point coordinate, X4 is the second roll gap terminal point coordinate, L is the length of the working roll, W is the width of the rolled product, K is the roll shifting amount, and K is positive and negative when the roll is shifted positively.
On the other hand, the invention also provides the following technical scheme:
a hot roll gap profile building system comprising:
the data acquisition module is used for acquiring the length of a working roll and the width of a rolled product, and the working roll comprises an upper roll and a lower roll;
the data acquisition module is also used for acquiring a lower boundary curve of the upper roller and an upper boundary curve of the lower roller;
the roll gap coordinate determination module is used for determining a first roll gap starting point coordinate and a first roll gap end point coordinate on the lower boundary curve and a second roll gap starting point coordinate and a second roll gap end point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product;
the roll gap contour intercepting module is used for intercepting an upper contour curve of the roll gap from the lower boundary curve according to the first roll gap starting point coordinate and the first roll gap end point coordinate, and intercepting a lower contour curve of the roll gap from the upper boundary curve according to the second roll gap starting point coordinate and the second roll gap end point coordinate;
and the roll gap contour calculation module is used for subtracting the roll gap lower contour curve from the roll gap upper contour curve to obtain a roll gap thickness contour curve.
Preferably, the data obtaining module is further configured to:
acquiring an upper boundary curve of the upper roller;
and taking a curve which is symmetrical to the upper boundary curve of the upper roller along the horizontal axis of the upper roller as the lower boundary curve of the upper roller.
Preferably, the roll gap coordinate determination module is further configured to:
acquiring the roll shifting amount of the working roll;
and determining the first roll gap starting point coordinate, the first roll gap end point coordinate, the second roll gap starting point coordinate and the second roll gap end point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product.
On the other hand, the invention also provides the following technical scheme:
an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor when executing the program implementing any of the hot roll seam profile construction methods described above.
On the other hand, the invention also provides the following technical scheme:
a computer readable storage medium which when executed implements any of the hot roll gap contour construction methods described above.
One or more technical schemes provided by the invention at least have the following technical effects or advantages:
according to the length of the working roll and the width of a rolled product, a first roll gap starting point coordinate and a first roll gap end point coordinate on a lower boundary curve of the upper roll are determined, a second roll gap starting point coordinate and a second roll gap end point coordinate on an upper boundary curve of the lower roll are determined, an upper roll gap contour curve is cut out from the lower boundary curve of the upper roll according to the first roll gap starting point coordinate and the first roll gap end point coordinate, a lower roll gap contour curve is cut out from the upper boundary curve of the lower roll according to the second roll gap starting point coordinate and the second roll gap end point coordinate, and a lower roll gap contour curve is subtracted from the upper roll gap contour curve to obtain a roll gap thickness contour curve, so that a roll gap contour can be effectively constructed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a flow chart of a method of constructing a hot roll gap profile in an embodiment of the present invention;
FIG. 2 is a schematic view showing the construction of a work roll and a rolled product in the embodiment of the present invention;
FIG. 3 is a schematic view of the configuration of the shifting work roll and the rolled product in the embodiment of the present invention;
FIG. 4 is a schematic illustration of a roll gap profile in an embodiment of the invention;
FIG. 5 is a schematic illustration of a roll gap thickness profile in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a hot roll gap profile building system in an embodiment of the present invention.
Detailed Description
The embodiment of the invention solves the technical problem of how to effectively construct the roll gap contour by providing the method and the system for constructing the roll gap contour.
In order to better understand the technical scheme of the invention, the technical scheme of the invention is described in detail in the following with the accompanying drawings and specific embodiments.
First, it is noted that the term "and/or" appearing herein is merely an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
As shown in fig. 1, the hot rolling gap profile constructing method of the present embodiment includes:
step S1, obtaining the length of a working roll and the width of a rolled product, wherein the working roll comprises an upper roll and a lower roll;
step S2, acquiring a lower boundary curve of the upper roller; acquiring an upper boundary curve of the lower roller;
step S3, determining a first roll gap starting point coordinate and a first roll gap end point coordinate on a lower boundary curve of an upper roll and a second roll gap starting point coordinate and a second roll gap end point coordinate on an upper boundary curve of a lower roll according to the length of a working roll and the width of a rolled product;
step S4, an upper contour curve of the roll gap is intercepted from a lower boundary curve of the upper roll according to a first roll gap starting coordinate and a first roll gap end coordinate, and a lower contour curve of the roll gap is intercepted from an upper boundary curve of the lower roll according to a second roll gap starting coordinate and a second roll gap end coordinate;
and step S5, subtracting the lower roll gap contour curve from the upper roll gap contour curve to obtain a roll gap thickness contour curve.
In step S1, as shown in fig. 2, the upper and lower rollers have the same length, and the center lines of the upper and lower rollers and the rolled product generally coincide with each other.
In step S2, the lower boundary curve of the upper roller may be directly measured, but considering that the upper boundary curve of the upper roller and the upper boundary curve of the lower roller are generally directly measured by a measurement system, and the upper boundary curve and the lower boundary curve of the upper roller are symmetric about a horizontal axis (OS-DS line in fig. 2) of the upper roller, the lower boundary curve of the upper roller may be obtained by the measured upper boundary curve of the upper roller, that is, step S2 includes: acquiring an upper boundary curve of the upper roller; and taking a curve which is symmetrical to the upper boundary curve of the upper roller along the horizontal axis of the upper roller as the lower boundary curve of the upper roller. This eliminates the need for additional measurements of the lower boundary curve of the upper roll.
In step S3, for the work roll without play, since the center lines of the upper roll, the lower roll, and the rolled product coincide with the rolling center line, the first roll gap start coordinate, the first roll gap end coordinate, the second roll gap start coordinate, and the second roll gap end coordinate may be determined by the formulas X1-L/2-W/2, X2-L/2 + W/2, X3-L/2-W/2, and X4-L/2 + W/2, where X1 is the first roll gap start coordinate, X2 is the first roll gap end coordinate, X3 is the second roll gap start coordinate, X4 is the second roll gap end coordinate, L is the length of the work roll, and W is the width of the rolled product, as shown in fig. 2. And the coordinate zero points corresponding to the first roll gap starting point coordinate and the first roll gap end point coordinate are the OS side of the lower boundary curve of the upper roll, and the coordinate zero points corresponding to the second roll gap starting point coordinate and the second roll gap end point coordinate are the OS side of the upper boundary curve of the lower roll. For some work rolls with play, the roll play amount of the work rolls needs to be obtained, a first roll gap starting point coordinate, a first roll gap end point coordinate, a second roll gap starting point coordinate and a second roll gap end point coordinate are determined according to the roll play amount, the length of the work rolls and the width of a rolled product, and are obtained through calculation according to the formula X1, L/2-K-W/2, X2, L/2-K + W/2, X3, L/2+ K-W/2, X4, L/2+ K + W/2, K is the roll play amount, and K is positive and negative when K is positive and negative roll play. Thus, the roll gap starting point coordinate and the roll gap end point coordinate of the shifting working roll can be obtained. As shown in fig. 3, the upper roller side (right side in fig. 3) shifting and the lower roller side (left side in fig. 3) symmetrical shifting are defined as positive shifting rollers, and the upper roller side shifting and the lower roller side symmetrical shifting are defined as negative shifting rollers.
In step S4, the upper roll gap contour curve extracted from the upper roll lower boundary curve according to the first roll gap start point coordinate and the first roll gap end point coordinate is a curve from X1 to X2 in fig. 2, and the lower roll gap contour curve extracted from the upper roll lower boundary curve according to the second roll gap start point coordinate and the second roll gap end point coordinate is a curve from X3 to X4 in fig. 2. In this embodiment, the roll gap profile curve shown in fig. 4 can be obtained by taking W of 1273.7mm and K of 120mm as examples.
In step S5, the roll gap thickness profile shown in fig. 5 can be obtained from fig. 4. When actually calculating the roll gap thickness, a plurality of points on the roll gap upper contour curve and the roll gap lower contour curve are selected, and if the number of points is N and the abscissa interval between adjacent points is M, K is M (N-1).
As can be seen from the above, in this embodiment, a first roll gap starting point coordinate and a first roll gap end point coordinate on the lower boundary curve of the upper roll and a second roll gap starting point coordinate and a second roll gap end point coordinate on the upper boundary curve of the lower roll are determined according to the length of the work roll and the width of the rolled product, an upper profile curve of the roll gap is extracted from the lower boundary curve of the upper roll according to the first roll gap starting point coordinate and the first roll gap end point coordinate, a lower profile curve of the roll gap is extracted from the upper boundary curve of the lower roll according to the second roll gap starting point coordinate and the second roll gap end point coordinate, and the lower profile curve of the roll gap is subtracted from the upper profile curve of the roll gap to obtain a profile curve of the roll gap thickness, so that the roll gap profile can be effectively constructed.
As shown in fig. 6, the present embodiment also provides a hot rolling gap profile building system including:
the data acquisition module is used for acquiring the length of a working roll and the width of a rolled product, and the working roll comprises an upper roll and a lower roll;
the data acquisition module is also used for acquiring a lower boundary curve of the upper roller and an upper boundary curve of the lower roller;
the roll gap coordinate determination module is used for determining a first roll gap starting point coordinate and a first roll gap end point coordinate on a lower boundary curve of the upper roll and a second roll gap starting point coordinate and a second roll gap end point coordinate on an upper boundary curve of the lower roll according to the length of the working roll and the width of a rolled product;
the roll gap contour intercepting module is used for intercepting an upper roll gap contour curve from an upper roll lower boundary curve according to a first roll gap starting point coordinate and a first roll gap end point coordinate, and intercepting a lower roll gap contour curve from an upper roll gap boundary curve according to a second roll gap starting point coordinate and a second roll gap end point coordinate;
and the roll gap contour calculation module is used for subtracting the roll gap lower contour curve from the roll gap upper contour curve to obtain a roll gap thickness contour curve.
Wherein, the data acquisition module is further configured to: acquiring an upper boundary curve of the upper roller; and taking a curve which is symmetrical to the upper boundary curve of the upper roller along the horizontal axis of the upper roller as the lower boundary curve of the upper roller. A roll gap coordinate determination module further configured to: acquiring the roll shifting amount of the working roll; and determining a first roll gap starting point coordinate, a first roll gap end point coordinate, a second roll gap starting point coordinate and a second roll gap end point coordinate according to the roll shifting amount, the length of the working roll and the width of a rolled product.
According to the method, a first roll gap starting point coordinate and a first roll gap end point coordinate on a lower boundary curve of an upper roll and a second roll gap starting point coordinate and a second roll gap end point coordinate on an upper boundary curve of a lower roll are determined according to the length of a working roll and the width of a rolled product, an upper roll gap contour curve is intercepted from the lower boundary curve of the upper roll according to the first roll gap starting point coordinate and the first roll gap end point coordinate, a lower roll gap contour curve is intercepted from the upper boundary curve of the lower roll according to the second roll gap starting point coordinate and the second roll gap end point coordinate, the lower roll gap contour curve is subtracted from the upper roll gap contour curve to obtain a roll gap thickness contour curve, and a roll gap contour can be effectively constructed.
Based on the same inventive concept as the hot roll gap contour constructing method described above, the present embodiment further provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of any one of the hot roll gap contour constructing methods described above.
Where a bus architecture (represented by a bus) is used, the bus may include any number of interconnected buses and bridges that link together various circuits including one or more processors, represented by a processor, and memory, represented by a memory. The bus may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the receiver and transmitter. The receiver and transmitter may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor is responsible for managing the bus and general processing, while the memory may be used to store data used by the processor in performing operations.
Since the electronic device described in this embodiment is an electronic device used for implementing the method for constructing a hot roll gap profile in the embodiment of the present invention, based on the method for constructing a hot roll gap profile described in this embodiment of the present invention, a person skilled in the art can understand the specific implementation of the electronic device of this embodiment and various modifications thereof, and therefore, how to implement the method in the embodiment of the present invention by the electronic device is not described in detail here. It is within the scope of the present invention to implement the electronic device used in the method for constructing a hot roll gap profile according to the embodiment of the present invention.
Based on the same inventive concept as the hot roll gap contour construction method, the invention also provides a computer readable storage medium, and the computer readable storage medium is executed to realize any one of the hot roll gap contour construction methods.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method of constructing a hot roll gap profile, comprising:
acquiring the length of a working roller and the width of a rolled product, wherein the working roller comprises an upper roller and a lower roller;
acquiring a lower boundary curve of the upper roller; acquiring an upper boundary curve of the lower roller;
determining a first roll gap starting point coordinate and a first roll gap end point coordinate on the lower boundary curve and a second roll gap starting point coordinate and a second roll gap end point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product;
intercepting an upper contour curve of the roll gap from the upper boundary curve according to the first roll gap starting coordinate and the first roll gap end coordinate, and intercepting a lower contour curve of the roll gap from the upper boundary curve according to the second roll gap starting coordinate and the second roll gap end coordinate;
and subtracting the lower contour curve of the roll gap from the upper contour curve of the roll gap to obtain a thickness contour curve of the roll gap.
2. The method of constructing a hot rolling roll gap profile as claimed in claim 1 wherein said obtaining a lower boundary curve of the upper roll comprises:
acquiring an upper boundary curve of the upper roller;
and taking a curve which is symmetrical to the upper boundary curve of the upper roller along the horizontal axis of the upper roller as the lower boundary curve of the upper roller.
3. The method of claim 1, wherein determining a first roll gap start and end coordinates on the lower boundary curve and a second roll gap start and end coordinates on the upper boundary curve based on the length of the work rolls and the width of the rolled product comprises:
X1＝L/2-W/2，X2＝L/2+W/2，X3＝L/2-W/2，X4＝L/2+W/2；
x1 is the first roll gap start coordinate, X2 is the first roll gap end coordinate, X3 is the second roll gap start coordinate, X4 is the second roll gap end coordinate, L is the length of the work roll, and W is the width of the rolled product.
4. The method of claim 1, wherein determining a first roll gap start and end coordinates on the lower boundary curve and a second roll gap start and end coordinates on the upper boundary curve based on the length of the work rolls and the width of the rolled product comprises:
acquiring the roll shifting amount of the working roll;
and determining the first roll gap starting point coordinate, the first roll gap end point coordinate, the second roll gap starting point coordinate and the second roll gap end point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product.
5. The method of constructing a hot rolling nip profile as claimed in claim 4 wherein said determining the first nip start coordinate, the first nip end coordinate, the second nip start coordinate and the second nip end coordinate based on the roll shifting amount, the length of the work rolls, the width of the rolled product comprises:
X1＝L/2-K-W/2，X2＝L/2-K+W/2，X3＝L/2+K-W/2，X4＝L/2+K+W/2；
x1 is the first roll gap starting point coordinate, X2 is the first roll gap end point coordinate, X3 is the second roll gap starting point coordinate, X4 is the second roll gap end point coordinate, L is the length of the working roll, W is the width of the rolled product, K is the roll shifting amount, and K is positive and negative when the roll is shifted positively.
6. A hot roll gap profile building system, comprising:
the data acquisition module is used for acquiring the length of a working roll and the width of a rolled product, and the working roll comprises an upper roll and a lower roll;
the data acquisition module is also used for acquiring a lower boundary curve of the upper roller and an upper boundary curve of the lower roller;
the roll gap coordinate determination module is used for determining a first roll gap starting point coordinate and a first roll gap end point coordinate on the lower boundary curve, and a second roll gap starting point coordinate and a second roll gap end point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product;
the roll gap contour intercepting module is used for intercepting an upper contour curve of the roll gap from the lower boundary curve according to the first roll gap starting point coordinate and the first roll gap end point coordinate, and intercepting a lower contour curve of the roll gap from the upper boundary curve according to the second roll gap starting point coordinate and the second roll gap end point coordinate;
and the roll gap contour calculation module is used for subtracting the roll gap lower contour curve from the roll gap upper contour curve to obtain a roll gap thickness contour curve.
7. The hot roll gap profile building system of claim 6, wherein the data acquisition module is further configured to:
acquiring an upper boundary curve of the upper roller;
and taking a curve which is symmetrical to the upper boundary curve of the upper roller along the horizontal axis of the upper roller as the lower boundary curve of the upper roller.
8. The hot roll gap profile building system of claim 6, wherein the gap coordinate determination module is further to:
acquiring the roll shifting amount of the working roll;
and determining the first roll gap starting point coordinate, the first roll gap end point coordinate, the second roll gap starting point coordinate and the second roll gap end point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product.
9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor when executing the program implementing the hot roll gap contour construction method of any of claims 1-5.
10. A computer readable storage medium that when executed performs the hot roll gap contour construction method of any of claims 1-5.
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| US20070240475A1 (en) * | 2003-12-23 | 2007-10-18 | Kneppe Guenter | Method and Roll Stand for Multiply Influencing Profiles |
| CN103203370A (en) * | 2012-01-12 | 2013-07-17 | 宝山钢铁股份有限公司 | Edge wave control method aiming at high-strength steel and work rollers thereof |
| CN108114993A (en) * | 2017-12-22 | 2018-06-05 | 燕山大学 | The method that measurement support roller outer profile obtains strip-mill strip loading roll gap information in real time |
| CN110991078A (en) * | 2019-12-17 | 2020-04-10 | 中冶南方工程技术有限公司 | Working roll shape design method capable of reducing axial force |
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