CN115156490A - Narrow-face copper plate shape design method, device, medium and equipment - Google Patents
Narrow-face copper plate shape design method, device, medium and equipment Download PDFInfo
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- CN115156490A CN115156490A CN202210999082.XA CN202210999082A CN115156490A CN 115156490 A CN115156490 A CN 115156490A CN 202210999082 A CN202210999082 A CN 202210999082A CN 115156490 A CN115156490 A CN 115156490A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0406—Moulds with special profile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
Abstract
The invention provides a method, a device, a medium and equipment for designing the shape of a narrow-face copper plate, wherein the method comprises the steps of obtaining the wear prediction quantity of the narrow-face copper plate under different conditions by utilizing a wear prediction model of the narrow-face copper plate in the using process; determining the stress of a casting blank shell of the narrow-face copper plate according to the predicted wear amount of the narrow-face copper plate under different conditions; and optimizing the shape of the narrow-surface copper plate according to the stress of the casting blank shell to obtain the target shape of the narrow-surface copper plate. The method can achieve the purpose of improving the quality of the casting blank by optimizing the form of the narrow-face copper plate.
Description
Technical Field
The invention relates to the technical field of cast steel, in particular to a method, a device, a medium and equipment for designing the shape of a narrow-face copper plate.
Background
In the use process of the crystallizer copper plate, the casting blank and the copper plate have friction, and the copper plate can be abraded. Therefore, the thin slab narrow-face copper plate is required to satisfy the following conditions: (1) The copper plate is worn as uniformly as possible in the height direction in the using process, and the stress difference is reduced. (2) In the using process, the enough supporting force of the casting blank is ensured.
The traditional crystallizer narrow-face copper plate adopts a vertical form, so that the pressure of the copper plate at the local position is high in the using process, the abrasion loss at different height positions is obviously different and reaches 1.0mm at most. As the amount of wear increases, the billet shell supporting force weakens and the cast billet cracks. The sheet billet has high crack sensitivity due to high drawing speed and high casting blank temperature, and the influence of the difference of the abrasion loss of the narrow-face copper plate on the cracks of the casting blank is more prominent.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method, a device, a medium and equipment for designing the shape of a narrow-face copper plate, and the method can achieve the purpose of improving the quality of a casting blank by optimizing the form of the narrow-face copper plate.
In order to achieve the above object, an aspect of the present invention provides a method for designing a shape of a narrow-sided copper plate, including:
obtaining the wear prediction quantity of the narrow-face copper plate under different conditions by using a wear prediction model of the narrow-face copper plate in the using process, wherein the different conditions at least comprise one of drawing speed, taper and section;
determining the stress of a casting blank shell of the narrow-face copper plate according to the predicted wear amount of the narrow-face copper plate under different conditions;
and optimizing the shape of the narrow-face copper plate according to the stress of the casting blank shell to obtain the target shape of the narrow-face copper plate.
Optionally, the determining the slab shell stress according to the wear amount of the narrow face plate under different conditions includes:
according to the wear prediction amount of the narrow face plate under different conditions, obtaining the compression stress of the narrow face copper plate to the blank shell and the solidification shrinkage stress of the blank shell under different wear prediction amounts;
and determining the stress of the blank shell of the casting blank according to the compression stress of the narrow-face copper plate to the blank shell under different wear prediction amounts and the solidification shrinkage stress of the blank shell.
Optionally, under different wear prediction amounts, the stress on the blank shell of the casting blank is the sum of the compressive stress of the narrow-surface copper plate to the blank shell and the solidification shrinkage stress of the blank shell.
Optionally, the optimizing the shape of the narrow-surface copper plate according to the stress of the casting blank shell to obtain the target shape of the narrow-surface copper plate includes:
and optimizing the shape of the narrow-face copper plate by taking the stress of the casting blank shell less than or equal to the initial blank shell solidification shrinkage stress as a constraint condition to obtain the target shape of the narrow-face copper plate.
Optionally, the method further includes:
determining an initial blank shell solidification shrinkage stress according to the blank shell surface temperature, wherein the initial blank shell solidification shrinkage stress is expressed as:
wherein, T s The temperature of the surface of the shell is shown.
Optionally, the obtaining the wear loss of the narrow-face copper plate under different conditions by using the wear prediction model of the narrow-face copper plate in the using process further includes:
acquiring the actually measured abrasion loss of the narrow-face copper plate under different conditions;
and according to the actually measured wear loss of the narrow-face copper plate, adopting a 'bulge' design at the position of the narrow-face copper plate corresponding to the actually measured wear loss to compensate excessive wear, and obtaining a first shape of the narrow-face copper plate.
Optionally, the obtaining of the predicted wear amount of the narrow-face copper plate under different conditions by using the wear prediction model of the narrow-face copper plate in the using process includes:
and inputting the first shape of the narrow-face copper plate into the wear prediction model to obtain the wear prediction quantity of the narrow-face copper plate under different conditions.
The invention also provides a narrow-face copper plate shape design device, which adopts the narrow-face copper plate shape design method, and the device at least comprises the following steps:
the device comprises a wear amount determining module, a data processing module and a data processing module, wherein the wear amount determining module is used for obtaining wear prediction amounts of the narrow-face copper plate under different conditions by utilizing a first wear model of the narrow-face copper plate in the using process, and the different conditions at least comprise one of pulling speed, taper and section;
the casting blank shell stress determining module is used for determining the stress of the casting blank shell according to the wear prediction measurement of the narrow-surface copper plate under different conditions;
and the shape optimization module is used for optimizing the shape of the narrow-surface copper plate according to the stress of the casting blank shell to obtain the target shape of the narrow-surface copper plate.
In another aspect of the present invention, there is provided a storage medium storing a computer program for executing the narrow-sided copper plate shape designing method described above.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the narrow-face copper plate shape design method.
According to the scheme, the invention has the advantages that:
according to the shape design method of the narrow-face copper plate, provided by the invention, the wear prediction amount of the narrow-face copper plate under different conditions is obtained by utilizing a wear prediction model of the narrow-face copper plate in the using process; determining the stress of a casting blank shell of the narrow-face copper plate according to the wear prediction quantity of the narrow-face copper plate under different conditions; and optimizing the shape of the narrow-face copper plate according to the stress of the casting blank shell under the condition of determining the stress of the casting blank shell of the narrow-face copper plate to obtain the target shape of the narrow-face copper plate. After the narrow-face copper plate is used, the stress of a casting blank shell of the casting blank is basically the same as that of the narrow-face copper plate when the narrow-face copper plate is not used, and the cracks of the casting blank are obviously improved; meanwhile, the wear loss of the narrow-face copper plate at different heights is almost the same, and the purpose of improving the quality of the casting blank is achieved.
Drawings
Fig. 1 is a schematic flow chart of a narrow-face copper plate shape design method provided in an embodiment of the present invention;
FIG. 2 shows measured wear of a narrow-faced copper plate;
FIG. 3 shows a schematic view of an optimized target shape of a narrow-sided copper plate;
FIG. 4 is a frame diagram of the narrow-sided copper plate shape designing apparatus of the present invention;
FIG. 5 is a schematic diagram of an electronic device;
Detailed Description
In order to make the aforementioned features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Specifically, referring to fig. 1, fig. 1 shows a flow chart of a narrow-faced copper plate shape design method;
a narrow-face copper plate shape design method comprises the following steps:
s1, obtaining the wear prediction quantity of the narrow-face copper plate under different conditions by using a wear prediction model of the narrow-face copper plate in the using process, wherein the different conditions at least comprise one of drawing speed, taper and section.
In a specific implementation, the different conditions may include different pulling speed conditions, different taper conditions, or different section conditions, and different forms of combination forms of pulling speed, taper, section, and the like, which is not specifically limited in this embodiment. In addition, for the determination of the wear prediction model, the method for predicting the wear of the narrow-face copper plate of the thin slab continuous casting machine disclosed in patent CN113705006A is used in this embodiment, and this is not described in detail in this application.
In addition, in a specific implementation, before the obtaining the wear extent of the narrow-face copper plate under different conditions by using the wear prediction model of the narrow-face copper plate in the use process, the method further includes:
acquiring the actually measured abrasion loss of the narrow-face copper plate under different conditions;
according to the measured wear amount of the narrow-face copper plate, the position of the narrow-face copper plate corresponding to the measured wear amount is designed to be convex, excessive wear is compensated, and the first shape of the narrow-face copper plate is obtained, such as the convex position in the measured wear condition of the narrow-face copper plate shown in fig. 2.
Then, after the first shape of the narrow-face copper plate is obtained, the first shape of the narrow-face copper plate is input into the wear prediction model, and wear prediction amounts of the narrow-face copper plate under different conditions are obtained. For the wear prediction, the wear prediction is the same at different heights of the narrow-face copper plate.
S2, determining the stress of the casting blank shell of the narrow-face copper plate according to the wear prediction quantity of the narrow-face copper plate under different conditions.
In a specific implementation, the determining the stress of the casting blank shell according to the abrasion loss of the narrow panel under different conditions comprises the following steps:
according to the wear prediction amount of the narrow face plate under different conditions, obtaining the compression stress of the narrow face copper plate to the blank shell and the solidification shrinkage stress of the blank shell under different wear prediction amounts;
and determining the stress of the casting blank shell according to the compression stress of the narrow-face copper plate to the blank shell under different wear prediction amounts and the solidification shrinkage stress of the blank shell.
In a specific implementation, under different wear prediction amounts, the stress applied to the casting blank shell is the sum of the compressive stress of the narrow-face copper plate on the blank shell and the solidification shrinkage stress of the blank shell, that is, fs = σ (x) + Pt, where: fs represents the stress of the casting blank shell, and sigma (x) represents the solidification shrinkage stress of the blank shell, namely the fracture strength value of the blank shell; pt represents the compressive stress of the narrow-faced copper plate to the blank shell.
And S3, optimizing the shape of the narrow-face copper plate according to the stress of the casting blank shell to obtain the target shape of the narrow-face copper plate.
In a specific implementation, the shape of the narrow-face copper plate is optimized by taking the stress on the casting blank shell less than or equal to the initial blank shell solidification shrinkage stress as a constraint condition, so as to obtain the target shape of the narrow-face copper plate, as shown in fig. 3, a schematic diagram of the target shape of the narrow-face copper plate after optimization is shown in fig. 3.
Further, for the initial shell solidification shrinkage stress may be determined by the shell surface temperature, i.e. the initial shell solidification shrinkage stress is expressed as:
wherein, T s The temperature of the surface of the shell is shown.
In the embodiment, the wear prediction amount of the narrow-face copper plate under different conditions is obtained by utilizing a wear prediction model of the narrow-face copper plate in the using process; determining the stress of a casting blank shell of the narrow-face copper plate according to the wear prediction quantity of the narrow-face copper plate under different conditions; and under the condition that the stress of the casting blank shell of the narrow-surface copper plate is determined, optimizing the shape of the narrow-surface copper plate according to the stress of the casting blank shell to obtain the target shape of the narrow-surface copper plate. In the narrow-face copper plate obtained in the embodiment, after the narrow-face copper plate is used, the stress of the casting blank shell is basically the same as that of the casting blank shell when the narrow-face copper plate is not used, and the cracks of the casting blank are obviously improved; meanwhile, the difference of the abrasion loss of the narrow-face copper plate at different heights is within 0.2mm, almost no difference exists, and the purpose of improving the quality of the casting blank is achieved.
Referring to fig. 4, fig. 4 shows a narrow-sided copper plate shape designing apparatus 400, which is applicable to a personal terminal and a host computer terminal device, and which can implement the narrow-sided copper plate shape designing method shown in fig. 1, and the narrow-sided copper plate shape designing apparatus provided in the embodiment of the present application can implement the processes implemented by the narrow-sided copper plate shape designing method.
A narrow-sided copper plate shape designing apparatus 400 adopting the narrow-sided copper plate shape designing method provided in the above embodiment, the apparatus at least comprising:
the wear loss determining module 401 is configured to obtain wear prediction quantities of the narrow-face copper plate under different conditions by using a first wear model of the narrow-face copper plate in a using process, where the different conditions at least include one of a pulling speed, a taper and a section;
a casting blank shell stress determining module 402, configured to determine a casting blank shell stress according to the predicted wear amount of the narrow-surface copper plate under different conditions;
and a shape optimizing module 403, configured to optimize the shape of the narrow-surface copper plate according to the stress of the casting blank shell, to obtain a target shape of the narrow-surface copper plate.
The shape design device of the narrow-face copper plate ensures that the stress of the casting blank shell after the narrow-face copper plate is used is basically the same as that of the casting blank shell when the narrow-face copper plate is not used, and the casting blank cracks are obviously improved; meanwhile, the wear loss of the narrow-face copper plate at different heights is almost the same, and the purpose of improving the quality of the casting blank is achieved.
Further, it should be understood that, in the narrow-sided copper plate shape designing apparatus 400 according to the embodiment of the present application, only the division of each functional module is exemplified, and in practical applications, the above-mentioned function distribution may be performed by different functional modules as needed, that is, the narrow-sided copper plate shape designing apparatus 400 may be divided into functional modules different from the modules illustrated in the above-mentioned examples so as to perform all or part of the above-described functions.
Fig. 5 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.
As shown in fig. 5, an electronic device 500 is further provided in the embodiments of the present application, and includes a processor 501, a memory 502, and a program or instructions stored in the memory 502 and executable on the processor 501, where the program or instructions, when executed by the processor 501, implement the steps of the narrow-faced copper plate shape design method described above, and achieve the same technical effects.
It should be noted that the electronic devices in the embodiments of the present application may include mobile electronic devices and non-mobile electronic devices.
The embodiment of the application further provides a readable storage medium, wherein a program or instructions are stored on the readable storage medium, and when the program or instructions are executed by a processor, the steps of the narrow-face copper plate shape design method are realized, and the same technical effect can be achieved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functionality involved, e.g., the methods described may be performed in an order different than that described, and various steps may be applied, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (10)
1. A method for designing the shape of a narrow-faced copper plate is characterized by comprising the following steps:
obtaining the wear prediction quantity of the narrow-face copper plate under different conditions by using a wear prediction model of the narrow-face copper plate in the using process, wherein the different conditions at least comprise one of drawing speed, taper and section;
determining the stress of a casting blank shell of the narrow-face copper plate according to the predicted wear amount of the narrow-face copper plate under different conditions;
and optimizing the shape of the narrow-face copper plate according to the stress of the casting blank shell to obtain the target shape of the narrow-face copper plate.
2. The method of claim 1, wherein determining the billet shell stress as a function of the amount of wear of the narrow face plate under different conditions comprises:
according to the wear prediction amount of the narrow face plate under different conditions, obtaining the compression stress of the narrow face copper plate to the blank shell and the solidification shrinkage stress of the blank shell under different wear prediction amounts;
and determining the stress of the casting blank shell according to the compression stress of the narrow-face copper plate to the blank shell under different wear prediction amounts and the solidification shrinkage stress of the blank shell.
3. The method according to claim 2, wherein the billet shell is subjected to the sum of the compressive stress of the narrow-faced copper plate on the billet shell and the solidification shrinkage stress of the billet shell under different wear prediction amounts.
4. The method according to claim 3, wherein the optimizing the shape of the narrow-face copper slab according to the stress on the billet shell to obtain the target shape of the narrow-face copper slab comprises:
and optimizing the shape of the narrow-face copper plate by taking the stress of the casting blank shell less than or equal to the initial blank shell solidification shrinkage stress as a constraint condition to obtain the target shape of the narrow-face copper plate.
5. The method of claim 4, further comprising:
determining an initial blank shell solidification shrinkage stress according to the blank shell surface temperature, wherein the initial blank shell solidification shrinkage stress is expressed as:
wherein, T s The temperature of the surface of the shell is shown.
6. The method according to claim 1, wherein before obtaining the wear amount of the narrow-sided copper plate under different conditions by using the wear prediction model of the narrow-sided copper plate use process, the method further comprises:
acquiring the actually measured abrasion loss of the narrow-face copper plate under different conditions;
and according to the actually measured abrasion loss of the narrow-face copper plate, adopting a 'bulge' design at the position of the narrow-face copper plate corresponding to the actually measured abrasion loss to compensate excessive abrasion, so as to obtain a first shape of the narrow-face copper plate.
7. The method according to claim 6, wherein the obtaining of the wear prediction quantity of the narrow-face copper plate under different conditions by using the wear prediction model of the narrow-face copper plate using process comprises:
and inputting the first shape of the narrow-face copper plate into the wear prediction model to obtain the wear prediction quantity of the narrow-face copper plate under different conditions.
8. A narrow-sided copper plate shape designing apparatus, characterized by adopting the narrow-sided copper plate shape designing method of any one of claims 1 to 7, said apparatus comprising at least:
the device comprises a wear amount determining module, a data processing module and a data processing module, wherein the wear amount determining module is used for obtaining wear prediction amounts of the narrow-face copper plate under different conditions by utilizing a first wear model of the narrow-face copper plate in the using process, and the different conditions at least comprise one of pulling speed, taper and section;
the casting blank shell stress determining module is used for determining the stress of the casting blank shell according to the wear prediction measurement of the narrow-surface copper plate under different conditions;
and the shape optimization module is used for optimizing the shape of the narrow-face copper plate according to the stress of the casting blank shell to obtain the target shape of the narrow-face copper plate.
9. A storage medium characterized by storing a computer program for executing the narrow-sided copper plate shape designing method claimed in any one of claims 1 to 7.
10. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the narrow-sided copper plate shape designing method according to any one of claims 1 to 7 when executing the computer program.
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| CN202210999082.XA CN115156490A (en) | 2022-08-19 | 2022-08-19 | Narrow-face copper plate shape design method, device, medium and equipment |
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| CN202210999082.XA CN115156490A (en) | 2022-08-19 | 2022-08-19 | Narrow-face copper plate shape design method, device, medium and equipment |
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| JPH05177310A (en) * | 1991-12-26 | 1993-07-20 | Sumitomo Metal Ind Ltd | Mold for continuous casting and method for controlling the shape of short side |
| JP2000263190A (en) * | 1999-03-19 | 2000-09-26 | Mishima Kosan Co Ltd | Mold for continuous casting |
| CN201744629U (en) * | 2010-05-27 | 2011-02-16 | 钢铁研究总院 | Narrow-face copper plate in combined crystallizer for continuous casting |
| CN102240787A (en) * | 2011-08-15 | 2011-11-16 | 中冶南方工程技术有限公司 | Method for increasing online adjusting width of continuous casting crystallizer within large range |
| CN109702154A (en) * | 2019-02-27 | 2019-05-03 | 山东钢铁股份有限公司 | A kind of crystallizer producing sheet billet |
| DE102018208558A1 (en) * | 2018-05-30 | 2019-12-05 | Sms Group Gmbh | A method for producing, consisting of copper or a copper alloy, plate-shaped inner walls of a continuous casting mold and inner wall of a continuous casting mold |
| CN113705006A (en) * | 2021-08-30 | 2021-11-26 | 日照钢铁控股集团有限公司 | Method for predicting wear of narrow-face copper plate of thin slab continuous casting machine |
-
2022
- 2022-08-19 CN CN202210999082.XA patent/CN115156490A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05177310A (en) * | 1991-12-26 | 1993-07-20 | Sumitomo Metal Ind Ltd | Mold for continuous casting and method for controlling the shape of short side |
| JP2000263190A (en) * | 1999-03-19 | 2000-09-26 | Mishima Kosan Co Ltd | Mold for continuous casting |
| CN201744629U (en) * | 2010-05-27 | 2011-02-16 | 钢铁研究总院 | Narrow-face copper plate in combined crystallizer for continuous casting |
| CN102240787A (en) * | 2011-08-15 | 2011-11-16 | 中冶南方工程技术有限公司 | Method for increasing online adjusting width of continuous casting crystallizer within large range |
| DE102018208558A1 (en) * | 2018-05-30 | 2019-12-05 | Sms Group Gmbh | A method for producing, consisting of copper or a copper alloy, plate-shaped inner walls of a continuous casting mold and inner wall of a continuous casting mold |
| CN109702154A (en) * | 2019-02-27 | 2019-05-03 | 山东钢铁股份有限公司 | A kind of crystallizer producing sheet billet |
| CN113705006A (en) * | 2021-08-30 | 2021-11-26 | 日照钢铁控股集团有限公司 | Method for predicting wear of narrow-face copper plate of thin slab continuous casting machine |
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