Production method and device for weathering resistant steel under multi-mode continuous cast rolling and electronic equipment
By using multi-mode continuous casting and rolling technology and precise control of casting machine speed and temperature information, the production process of weathering steel has been optimized, solving the problem of copper embrittlement, improving production accuracy and efficiency, and avoiding the use of high-cost nickel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-03-13
AI Technical Summary
The frequent occurrence of copper embrittlement defects in the current production of weathering steel leads to low production precision and efficiency, and the high cost of nickel usage contradicts the original intention of low-cost, high-value-added production.
By using multi-mode continuous casting and rolling technology, based on the production task of nickel-free weathering steel, the target production mode is determined, and the production process is optimized by precisely controlling the casting speed, furnace temperature and superheat information to avoid the occurrence of copper embrittlement defects.
It improves the production precision and efficiency of weathering steel, reduces the probability of copper embrittlement defects, and avoids the use of high-cost nickel.
Smart Images
Figure CN121649348A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of steel production, and in particular to a method, apparatus and electronic equipment for producing weathering steel under multi-mode continuous casting and rolling. Background Technology
[0002] Currently, multi-mode continuous casting and rolling (MCCR) thin slabs occupy a huge market space in the steelmaking and rolling field due to their low cost and high added value, and MCCR technology has the ability to mass-produce weathering steel.
[0003] However, in the production of common weathering steel, copper is usually added to improve the steel's corrosion resistance. During high-temperature heating, copper accumulates on the surface of the slab. When this accumulation exceeds the iron's ability to dissolve copper, copper precipitates at the interface of the iron scale, leading to hot brittleness, or copper embrittlement defect. Therefore, it is generally necessary to control this by adding nickel in industrial production. However, nickel is very expensive, which contradicts the original intention of low-cost, high-value-added production lines. Therefore, reducing the probability of copper embrittlement defect and improving the production precision and efficiency of weathering steel are the main tasks at present. Summary of the Invention
[0004] This application provides a method, apparatus, and electronic equipment for producing weathering steel under multi-mode continuous casting and rolling. The embodiments provided by this application solve the technical problems of low production accuracy and efficiency of weathering steel in the prior art, and improve the production accuracy and efficiency of weathering steel.
[0005] In a first aspect, this application provides a method for producing weathering steel under multi-mode continuous casting and rolling, the method comprising: Based on the production task of the nickel-free weathering steel to be produced, a production plan corresponding to the nickel-free weathering steel is determined, wherein the production plan includes multiple production modes for producing the nickel-free weathering steel; Based on the casting machine speed during the continuous casting process of the nickel-free weathering steel to be produced, the target production mode corresponding to the nickel-free weathering steel to be produced in the current state is determined, wherein the target production mode is used to characterize the selected production mode among multiple production modes. For any of the target production modes, based on the furnace temperature and superheat information of the nickel-free weathering steel under the target production mode, the nickel-free weathering steel is produced under the target production mode, and the production data of the nickel-free weathering steel under the target production mode is determined. Based on the production data of each of the target production modes, determine whether the production task has been completed.
[0006] In one feasible implementation, determining the target production mode corresponding to the nickel-free weathering steel under the current state based on the casting machine speed during the continuous casting process includes: If the casting speed of the non-nickel weathering steel to be produced is within the first casting speed threshold during continuous casting, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be the single-billet production mode.
[0007] In one feasible implementation, the furnace temperature information includes first furnace inlet temperature information and first furnace production time, the superheat information includes first superheat information, and for any of the target production modes, based on the furnace temperature information and superheat information of the nickel-free weathering steel in the target production mode, the nickel-free weathering steel is produced in the target production mode, and the production data of the nickel-free weathering steel in the target production mode is determined, including: For the single-billet production mode, the first furnace inlet temperature information of the nickel-free weathering steel in the single-billet production mode is controlled within a first preset furnace inlet temperature threshold, the first furnace production time information is controlled within a first preset furnace production time interval, and the first superheat information is controlled within a first preset superheat threshold. The nickel-free weathering steel in the target production mode is then produced, and the production data of the nickel-free weathering steel in the target production mode is determined.
[0008] In one feasible implementation, determining the target production mode corresponding to the nickel-free weathering steel under the current state based on the casting machine speed during the continuous casting process includes: If the casting speed of the non-nickel weathering steel to be produced is within the second casting speed threshold during continuous casting, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be a semi-endless rolling production mode, wherein the second casting speed threshold is greater than the first casting speed threshold.
[0009] In one feasible implementation, the furnace temperature information includes second furnace inlet temperature information and second furnace production time, the superheat information includes second superheat information, and for any of the target production modes, based on the furnace temperature information and superheat information of the nickel-free weathering steel in the target production mode, the nickel-free weathering steel is produced in the target production mode, and the production data of the nickel-free weathering steel in the target production mode is determined, including: For the semi-endless rolling production mode, the second furnace inlet temperature information of the nickel-free weathering steel in the semi-endless rolling production mode is controlled within a second preset furnace inlet temperature threshold, the second furnace production time information is controlled within a second preset furnace production time interval, and the second superheat information is controlled within a second preset superheat threshold. The nickel-free weathering steel in the target production mode is then produced, and the production data of the nickel-free weathering steel in the target production mode is determined. The second preset furnace temperature threshold is greater than the first preset furnace inlet temperature threshold, the second preset furnace production time interval is greater than the first preset furnace production time interval, and the second preset superheat threshold is less than the first preset superheat threshold.
[0010] In one feasible implementation, determining the target production mode corresponding to the nickel-free weathering steel under the current state based on the casting machine speed during the continuous casting process includes: If the casting speed of the non-nickel weathering steel to be produced is within the third casting speed threshold during the continuous casting process, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be the headless rolling production mode, wherein the third casting speed threshold is greater than the second casting speed threshold.
[0011] In one feasible implementation, the furnace temperature information includes furnace outlet temperature information, and the superheat information includes third superheat information. For any of the target production modes, based on the furnace temperature information and superheat information of the nickel-free weathering steel in the target production mode, the nickel-free weathering steel is produced under the target production mode, and the production data of the nickel-free weathering steel under the target production mode is determined, including: For the semi-endless rolling production mode, the furnace exit temperature information of the nickel-free weathering steel in the endless rolling production mode is controlled within a preset furnace exit temperature threshold, and the third superheat information is controlled within a third preset superheat threshold. The nickel-free weathering steel in the target production mode is produced, and the production data of the nickel-free weathering steel in the target production mode is determined, wherein the third preset superheat threshold is less than the second preset superheat threshold.
[0012] In a second aspect, this application provides a production apparatus for weathering steel under multi-mode continuous casting and rolling, the production apparatus for weathering steel under multi-mode continuous casting and rolling comprising: The first determining module is used to determine the production plan corresponding to the nickel-free weathering steel based on the production task of the nickel-free weathering steel to be produced, wherein the production plan includes multiple production modes for producing the nickel-free weathering steel; The first determining module is used to determine the target production mode corresponding to the nickel-free weathering steel to be produced in the current state based on the casting machine speed during the continuous casting process. The target production mode is used to characterize the selected production mode among multiple production modes. The third determining module is used to produce the nickel-free weathering steel under any of the target production modes based on the furnace temperature information and superheat information of the nickel-free weathering steel under the target production mode, and to determine the production data of the nickel-free weathering steel under the target production mode. The fourth determining module is used to determine whether the production task has been completed based on the production data of each of the target production modes.
[0013] In a third aspect, this application provides an electronic device, including a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus, and the machine-readable instructions are executed by the processor to perform the steps of the above-described method for producing weathering steel under multi-mode continuous casting and rolling.
[0014] In a fourth aspect of this application, an embodiment of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, performs the steps of the above-described method for producing weathering steel under multi-mode continuous casting and rolling.
[0015] The multi-mode continuous casting and rolling production method, apparatus, and electronic equipment provided in this application, compared with the prior art, determine the production plan corresponding to the nickel-free weathering steel based on the production task of the nickel-free weathering steel to be produced, and determine the target production mode corresponding to the nickel-free weathering steel in the current state based on the casting machine speed of the nickel-free weathering steel to be produced during the continuous casting process. Then, based on the furnace temperature and superheat information of the nickel-free weathering steel in the target production mode, the nickel-free weathering steel in the target production mode is produced, and the production data of the nickel-free weathering steel in the target production mode is determined. Then, based on the production data of each target production mode, it is determined whether the production task has been completed. This application identifies different target production modes by using different casting machine speeds, and realizes the production of nickel-free weathering steel using different processes based on different target production modes, thereby improving the production accuracy and efficiency of weathering steel and reducing the probability of copper embrittlement defects. Attached Figure Description
[0016] Figure 1A flowchart illustrating a method for producing weathering steel under multi-mode continuous casting and rolling according to an embodiment of this application is shown. Figure 2 This invention provides a structural block diagram of an apparatus for producing weathering steel using a multi-mode continuous casting and rolling method according to an embodiment of this application. Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of this application is shown.
[0017] Figure 2 and Figure 3 The correspondence between the figure labels and figure titles in the accompanying drawings is as follows: Production equipment for weathering steel under continuous casting and rolling with more than 200 modes; 210 First determination module; 220 Second determination module; 230 Third determination module; 240 Fourth determination module; 300 Electronic equipment; 310 Processor; 320 Memory; 330 Bus. Detailed Implementation
[0018] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.
[0019] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.
[0020] First, the applicable application scenarios of this application will be introduced. The embodiments provided in this application are applicable to the steel production field.
[0021] Currently, in the production of common weathering steel, copper is usually added to improve the steel's corrosion resistance. During high-temperature heating, copper accumulates on the surface of the slab. When this accumulation exceeds the iron's ability to dissolve copper, copper precipitates at the iron-scale interface, leading to hot brittleness, or copper embrittlement defect. Therefore, it is generally necessary to control this by adding nickel in industrial production. However, nickel is very expensive, which contradicts the original intention of low-cost, high-value-added production lines. Therefore, reducing the probability of copper embrittlement defect and improving the production precision and efficiency of weathering steel are the main tasks at present.
[0022] However, while the most effective method of adding nickel in industrial production is effective, it is very costly and not suitable for large-scale production. Therefore, how to solve the copper embrittlement defect of weathering steel in MCCR production lines without adding nickel and avoid batch quality problems is an urgent problem to be solved.
[0023] Based on this, the embodiments of this application provide a method, apparatus and electronic equipment for producing weathering steel under multi-mode continuous casting and rolling. The embodiments provided by this application solve the technical problems of low production accuracy and efficiency of weathering steel in the prior art, and improve the production accuracy and efficiency of weathering steel.
[0024] Figure 1 A flowchart illustrating a method for producing weathering steel under multi-mode continuous casting and rolling, as provided in an embodiment of this application, is shown. Figure 1 As shown, the production method of weathering steel under multi-mode continuous casting and rolling includes the following steps: S101. Based on the production task of nickel-free weathering steel to be produced, determine the corresponding production plan for nickel-free weathering steel. The production plan includes multiple production modes for producing nickel-free weathering steel.
[0025] In this step, before producing the nickel-free weathering steel to be produced, the embodiments provided in this application first need to determine the production tasks of different nickel-free weathering steels (i.e., the production order requirements and contracts of different manufacturers for nickel-free weathering steels, etc.), the production status of the nickel-free weathering steels, and production capacity, etc. Then, through an externally supported planning system (Product Development Initiative, PDI), the corresponding production order requirements and contracts of different manufacturers for nickel-free weathering steels, the production status of the nickel-free weathering steels, and production capacity are analyzed and integrated to determine the production plan corresponding to each nickel-free weathering steel for each production task. Among them, different types of production modes are assigned to each production plan corresponding to the nickel-free weathering steels.
[0026] As described above, it is assumed that the production modes for producing nickel-free weathering steel in the embodiments provided in this application include, but are not limited to, single-slab production mode, semi-endless rolling production mode, and endless rolling production mode, wherein each slab or coil of nickel-free weathering steel to be produced corresponds to only one production mode.
[0027] Understandably, the embodiments provided in this application use a multi-mode continuous casting and rolling (MCCR) technology production line to determine the production process of the nickel-free weathering steel to be produced. The production process of the nickel-free weathering steel to be produced is usually as follows: 200t top and bottom blowing converter — ladle refining furnace — high-speed thin slab casting machine — roller hearth tunnel furnace — roughing rolling — finishing rolling — layer cooling — coiling. The externally supported planning system sends the corresponding production mode to the casting machine, roller hearth tunnel furnace and the secondary control model of the controlled rolling mill to realize the production under the corresponding production mode.
[0028] Among them, the 200t top-and-bottom blowing converter is a highly efficient and widely used steelmaking equipment. It combines top oxygen supply and bottom gas supply technologies to optimize the smelting process, improve product quality, and reduce energy consumption. The ladle furnace (LF furnace) is an important piece of equipment used for secondary metallurgical treatment in the steel production process. It is mainly used to further refine and adjust the molten steel after primary smelting to meet the quality requirements of different steel grades.
[0029] As mentioned above, weathering steel, also known as atmospheric corrosion resistant steel or Corten steel, is a special alloy steel designed to improve the steel's resistance to atmospheric corrosion by forming a dense and stable rust layer on its surface. This rust layer can effectively prevent further corrosion and gradually stabilizes over time, thereby extending the service life of the steel.
[0030] S102. Based on the casting machine speed during the continuous casting process of the non-nickel weathering steel to be produced, determine the target production mode corresponding to the non-nickel weathering steel to be produced in the current state, wherein the target production mode is used to characterize the selected production mode among multiple production modes.
[0031] It should be noted that, in the embodiments provided in this application, after determining the production plan corresponding to the production task of the non-nickel weathering steel to be produced, the target production mode of the non-nickel weathering steel to be produced is determined based on the casting machine speed at different stages of the continuous casting process of the non-nickel weathering steel to be produced in the production plan.
[0032] It is understood that the embodiments provided in this application are assumed to set the casting machine speed to three stages, namely the casting machine speed at the first casting machine speed threshold stage, the casting machine speed at the second casting machine speed threshold stage, and the casting machine speed at the third casting machine speed threshold stage.
[0033] In this embodiment, it is assumed that the first casting machine speed threshold is set to 4.5 m / min; the second casting machine speed threshold is set to 4.5-4.7 m / min; and the third casting machine speed threshold is set to 4.9 m / min.
[0034] For example, if the casting speed of the non-nickel weathering steel to be produced is within the first casting speed threshold during continuous casting, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be the single-slab production mode. Specifically, if the casting speed of the non-nickel weathering steel to be produced is less than 4.5 m / min during continuous casting, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be the single-slab production mode. The single-slab production mode occurs in three scenarios, including the initial casting speed-up stage, the intermediate roll changing stage, and the final thickness return stage after casting. In these three stages, the casting speed of the non-nickel weathering steel to be produced during continuous casting is less than 4.5 m / min, which belongs to low casting speed rolling control.
[0035] It should be noted that casting speed refers to the speed at which the billet is continuously pulled out of the crystallizer during continuous casting. It is a very critical process parameter that directly affects the quality of the billet, production efficiency, and the operating status of the equipment. Reasonable speed control is essential to ensuring high-quality products and stable production processes.
[0036] For example, if the casting speed of the non-nickel weathering steel to be produced is within the second casting speed threshold during continuous casting, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be a semi-endless rolling production mode. The second casting speed threshold is greater than the first casting speed threshold. Specifically, if the casting speed of the non-nickel weathering steel to be produced is within 4.5-4.7 m / min during continuous casting, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be a semi-endless rolling production mode.
[0037] It should be noted that, in the embodiments provided in this application, when the target production mode is a semi-endless rolling production mode, 3-4 slabs are selected for batch rolling, and a faster rolling speed is adopted for control.
[0038] For example, if the casting speed of the non-nickel weathering steel to be produced is within the third casting speed threshold during continuous casting, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be the endless rolling production mode. The third casting speed threshold is greater than the second casting speed threshold. Specifically, if the casting speed of the non-nickel weathering steel to be produced in the continuous casting process is greater than or equal to 4.9 m / min, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be the semi-endless rolling production mode.
[0039] It should be noted that the embodiments provided in this application determine the use of high-speed rolling control when the target production mode is the headless rolling production mode.
[0040] S103. For any target production mode, based on the furnace temperature and superheat information of nickel-free weathering steel in the target production mode, produce nickel-free weathering steel in the target production mode and determine the production data of nickel-free weathering steel in the target production mode.
[0041] It should be noted that the embodiments provided in this application are for any target production mode. When the non-nickel weathering steel is in the corresponding target production mode, the furnace temperature information and superheat information are controlled and adjusted so that the corresponding furnace temperature information and superheat information meet the corresponding threshold requirements. In this way, the non-nickel weathering steel in the target production mode is produced, and the production data of the non-nickel weathering steel in the target production mode is determined.
[0042] For example, the furnace temperature information includes the first furnace inlet temperature information and the first furnace production time. For the single billet production mode, the first furnace inlet temperature information of the non-nickel weathering steel in the single billet production mode is controlled within the first preset furnace inlet temperature threshold, the first furnace production time information is controlled within the first preset furnace production time interval, and the first superheat information is controlled within the first preset superheat threshold. The non-nickel weathering steel in the target production mode is produced to determine the production data of the non-nickel weathering steel in the target production mode.
[0043] In the above, it is assumed that the first furnace entry temperature information in the embodiments provided in this application can be specifically, but not limited to, 990-1020℃; the first preset furnace production time can be specifically, but not limited to, 18min; and the first superheat information can be specifically, but not limited to, 30-35℃. In this case, in order to reduce copper embrittlement defects, a high-temperature rapid firing process should be adopted. Among them, high-temperature control is divided into three types: first, the first superheat information is controlled at 30-35℃, and the flow rate of the second cooling water in the horizontal fan-shaped section is controlled to be reduced to 100-200L / min, so as to increase the billet exit temperature; second, the first furnace entry temperature is increased, and the first furnace entry temperature is controlled between 990-1020℃ under low casting machine speed; and third, the first preset furnace production time is shortened, and the first preset furnace production time is controlled within 18min.
[0044] For example, the furnace temperature information includes second furnace inlet temperature information and second furnace production time, and the superheat information includes second superheat information. For the semi-endless rolling production mode, the second furnace inlet temperature information of nickel-free weathering steel in the semi-endless rolling production mode is controlled within a second preset furnace inlet temperature threshold, the second furnace production time information is controlled within a second preset furnace production time interval, and the second superheat information is controlled within a second preset superheat threshold. Nickel-free weathering steel is produced in the target production mode, and the production data of nickel-free weathering steel in the target production mode is determined. The second preset furnace temperature threshold is greater than the first preset furnace inlet temperature threshold, the second preset furnace production time interval is greater than the first preset furnace production time interval, and the second preset superheat threshold is less than the first preset superheat threshold.
[0045] It should be noted that, assuming the second superheat information in the embodiments provided in this application can be specifically, but not limited to, 25-30°C; the second furnace production time can be specifically, but not limited to, 18-19 min; and the second furnace inlet temperature information can be specifically, but not limited to, 1000-1020°C, then, in order to reduce copper embrittlement defects, a higher temperature and faster rolling process should be adopted. Specifically, the first step is to control the second superheat information at 25-30°C to increase the billet exit temperature; the second step is to control the second furnace inlet temperature information between 1000-1020°C; and the third step is to control the second furnace production time within 18-19 min.
[0046] For example, the furnace temperature information includes the furnace exit temperature information, and the superheat information includes the third superheat information. For the semi-endless rolling production mode, the furnace exit temperature information of the nickel-free weathering steel in the endless rolling production mode is controlled within a preset furnace exit temperature threshold, and the third superheat information is controlled within a third preset superheat threshold. The nickel-free weathering steel in the target production mode is produced, and the production data of the nickel-free weathering steel in the target production mode is determined. The third preset superheat threshold is less than the second preset superheat threshold.
[0047] It should be noted that, assuming the third superheat information in the embodiments provided in this application can be specific but not limited to 15-27℃; and the furnace exit temperature information can be specific but not limited to 1160-1170℃, then by controlling the third superheat information at 15-27℃, the slab temperature decreases, and the furnace entry temperature and furnace time are automatically adjusted according to the casting speed. Therefore, only the furnace exit temperature needs to be controlled. The secondary model automatically controls the heating temperature according to the furnace entry conditions and the actual value of the casting machine casting speed, and controls the furnace exit temperature between 1160-1170℃.
[0048] S104. Based on the production data of each target production mode, determine whether the production task has been completed.
[0049] It should be noted that, in the embodiments provided in this application, after determining the production data under each target production mode, the target output in each production data under each target production mode is compared with the output required in the production task to determine whether the production task has been completed.
[0050] The multi-mode continuous casting and rolling production method for weathering steel provided in this application, compared with the prior art, determines the corresponding production plan for nickel-free weathering steel based on the production task of the nickel-free weathering steel to be produced, and determines the target production mode corresponding to the nickel-free weathering steel in the current state based on the casting machine speed of the nickel-free weathering steel to be produced during the continuous casting process. Then, based on the furnace temperature and superheat information of the nickel-free weathering steel in the target production mode, the nickel-free weathering steel in the target production mode is produced, and the production data of the nickel-free weathering steel in the target production mode is determined. Then, based on the production data of each target production mode, it is determined whether the production task has been completed. This application identifies different target production modes by using different casting machine speeds, and realizes the production of nickel-free weathering steel using different processes based on different target production modes, thereby improving the production accuracy and efficiency of weathering steel and reducing the probability of copper embrittlement defects.
[0051] The embodiments provided in this application identify different production modes and optimize different processes. The target production modes do not require equipment modification or additional nickel input during implementation. The process control optimization is low-cost, simple and easy to implement, and easy to operate and control. Furthermore, the present invention reduces the copper embrittlement defect that occurs in nickel-free weathering steel under different target production modes.
[0052] Figure 2 This diagram illustrates a structural block diagram of an apparatus for producing weathering steel using a multi-mode continuous casting and rolling method according to an embodiment of this application. Figure 2As shown, the production apparatus 200 for weathering steel under multi-mode continuous casting and rolling includes: The first determining module 210 is used to determine the production plan corresponding to the nickel-free weathering steel based on the production task of the nickel-free weathering steel to be produced. The production plan includes multiple production modes for producing nickel-free weathering steel.
[0053] The first determining module 210 is used to determine the target production mode corresponding to the non-nickel weathering steel to be produced in the current state based on the casting machine speed during the continuous casting process. The target production mode is used to characterize the selected production mode among multiple production modes.
[0054] The third determining module 230 is used to produce nickel-free weathering steel under any target production mode based on the furnace temperature and superheat information of nickel-free weathering steel under the target production mode, and to determine the production data of nickel-free weathering steel under the target production mode.
[0055] The fourth determination module 240 is used to determine whether the production task has been completed based on the production data of each target production mode.
[0056] For example, the second determining module 220 is specifically used to: if the casting speed of the non-nickel weathering steel to be produced is within the first casting speed threshold during the continuous casting process, then determine that the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is the single billet production mode.
[0057] For example, the furnace temperature information includes the first furnace inlet temperature information and the first furnace production time, and the superheat information includes the first superheat information. The third determining module 230 is specifically used to: for the single billet production mode, control the first furnace inlet temperature information of the non-nickel weathering steel in the single billet production mode within the first preset furnace inlet temperature threshold, control the first furnace production time information within the first preset furnace production time interval, and control the first superheat information within the first preset superheat threshold, produce non-nickel weathering steel in the target production mode, and determine the production data of non-nickel weathering steel in the target production mode.
[0058] For example, the second determining module 220 is further specifically used to: if the casting speed of the non-nickel weathering steel to be produced is within the second casting speed threshold during the continuous casting process, then determine that the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is a semi-endless rolling production mode, wherein the second casting speed threshold is greater than the first casting speed threshold.
[0059] For example, the furnace temperature information includes second furnace inlet temperature information and second furnace production time, and the superheat information includes second superheat information. The third determining module 230 is further specifically used for: for the semi-endless rolling production mode, controlling the second furnace inlet temperature information of nickel-free weathering steel in the semi-endless rolling production mode within a second preset furnace inlet temperature threshold, controlling the second furnace production time information within a second preset furnace production time interval, and controlling the second superheat information within a second preset superheat threshold, producing nickel-free weathering steel in the target production mode, and determining the production data of nickel-free weathering steel in the target production mode, wherein the second preset furnace temperature threshold is greater than the first preset furnace inlet temperature threshold, the second preset furnace production time interval is greater than the first preset furnace production time interval, and the second preset superheat threshold is less than the first preset superheat threshold.
[0060] For example, the second determining module 220 is further specifically used to: if the casting speed of the non-nickel weathering steel to be produced is within the third casting speed threshold during the continuous casting process, then determine that the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is the headless rolling production mode, wherein the third casting speed threshold is greater than the second casting speed threshold.
[0061] For example, the furnace temperature information includes the furnace exit temperature information, and the superheat information includes the third superheat information. The third determining module 230 is also specifically used to: control the furnace exit temperature information of the nickel-free weathering steel in the endless rolling production mode within a preset furnace exit temperature threshold for the semi-endless rolling production mode, and control the third superheat information within a third preset superheat threshold for the third production mode, produce the nickel-free weathering steel in the target production mode, and determine the production data of the nickel-free weathering steel in the target production mode, wherein the third preset superheat threshold is less than the second preset superheat threshold.
[0062] The multi-mode continuous casting and rolling production apparatus 200 for weathering steel provided in this application embodiment, compared with the prior art, determines the corresponding production plan for nickel-free weathering steel based on the production task to be produced, and determines the target production mode corresponding to the nickel-free weathering steel in the current state based on the casting machine speed during the continuous casting process. Then, based on the furnace temperature and superheat information of the nickel-free weathering steel in the target production mode, the nickel-free weathering steel is produced in the target production mode, and the production data of the nickel-free weathering steel in the target production mode is determined. Then, based on the production data of each target production mode, it is determined whether the production task has been completed. This application identifies different target production modes by using different casting machine speeds, and realizes the production of nickel-free weathering steel using different processes based on different target production modes, thereby improving the production accuracy and efficiency of weathering steel and reducing the probability of copper embrittlement defects.
[0063] The embodiments provided in this application identify different production modes and optimize different processes. The target production modes do not require equipment modification or additional nickel input during implementation. The process control optimization is low-cost, simple and easy to implement, and easy to operate and control. Furthermore, the present invention reduces the copper embrittlement defect that occurs in nickel-free weathering steel under different target production modes.
[0064] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of this application is shown. Figure 3 As shown, the electronic device 300 includes a processor 310, a memory 320, and a bus 330.
[0065] Memory 320 stores machine-readable instructions executable by processor 310. When electronic device 300 is running, processor 310 and memory 320 communicate via bus 330. When the machine-readable instructions are executed by processor 310, they can perform the operations described above. Figure 1 The steps of the method for producing weathering steel under multi-mode continuous casting and rolling in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.
[0066] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can perform the above-described actions. Figure 1 The steps of the method for producing weathering steel under multi-mode continuous casting and rolling in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.
[0067] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0068] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0069] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.
[0070] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, 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 a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0071] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0072] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0073] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to execute a process for producing weathering steel under multi-mode continuous casting and rolling.
[0074] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).
[0075] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0076] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.
[0077] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0078] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0079] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0080] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
[0081] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.
[0082] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.
Claims
1. A method for producing weathering steel under multi-mode continuous casting and rolling, characterized in that, The method for producing weathering steel under multi-mode continuous casting and rolling includes: Based on the production task of the nickel-free weathering steel to be produced, a production plan corresponding to the nickel-free weathering steel is determined, wherein the production plan includes multiple production modes for producing the nickel-free weathering steel; Based on the casting machine speed during the continuous casting process of the nickel-free weathering steel to be produced, the target production mode corresponding to the nickel-free weathering steel to be produced in the current state is determined, wherein the target production mode is used to characterize the selected production mode among multiple production modes. For any of the target production modes, based on the furnace temperature and superheat information of the nickel-free weathering steel under the target production mode, the nickel-free weathering steel is produced under the target production mode, and the production data of the nickel-free weathering steel under the target production mode is determined. Based on the production data of each of the target production modes, determine whether the production task has been completed.
2. The method for producing weathering steel under multi-mode continuous casting and rolling according to claim 1, characterized in that, The determination of the target production mode corresponding to the nickel-free weathering steel under the current state, based on the casting machine speed during the continuous casting process, includes: If the casting speed of the non-nickel weathering steel to be produced is within the first casting speed threshold during continuous casting, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be the single-billet production mode.
3. The method for producing weathering steel under multi-mode continuous casting and rolling according to claim 2, characterized in that, The furnace temperature information includes first furnace inlet temperature information and first furnace production time; the superheat information includes first superheat information; for any of the target production modes, based on the furnace temperature information and superheat information of the nickel-free weathering steel in the target production mode, the nickel-free weathering steel is produced in the target production mode, and the production data of the nickel-free weathering steel in the target production mode is determined, including: For the single-billet production mode, the first furnace inlet temperature information of the nickel-free weathering steel in the single-billet production mode is controlled within a first preset furnace inlet temperature threshold, the first furnace production time information is controlled within a first preset furnace production time interval, and the first superheat information is controlled within a first preset superheat threshold. The nickel-free weathering steel in the target production mode is then produced, and the production data of the nickel-free weathering steel in the target production mode is determined.
4. The method for producing weathering steel under multi-mode continuous casting and rolling according to claim 3, characterized in that, The determination of the target production mode corresponding to the nickel-free weathering steel under the current state, based on the casting machine speed during the continuous casting process, includes: If the casting speed of the non-nickel weathering steel to be produced is within the second casting speed threshold during continuous casting, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be a semi-endless rolling production mode, wherein the second casting speed threshold is greater than the first casting speed threshold.
5. The method for producing weathering steel under multi-mode continuous casting and rolling according to claim 4, characterized in that, The furnace temperature information includes second furnace inlet temperature information and second furnace production time; the superheat information includes second superheat information; for any of the target production modes, based on the furnace temperature information and superheat information of the nickel-free weathering steel in the target production mode, the nickel-free weathering steel is produced in the target production mode, and the production data of the nickel-free weathering steel in the target production mode is determined, including: For the semi-endless rolling production mode, the second furnace inlet temperature information of the nickel-free weathering steel in the semi-endless rolling production mode is controlled within a second preset furnace inlet temperature threshold, the second furnace production time information is controlled within a second preset furnace production time interval, and the second superheat information is controlled within a second preset superheat threshold. The nickel-free weathering steel in the target production mode is then produced, and the production data of the nickel-free weathering steel in the target production mode is determined. The second preset furnace temperature threshold is greater than the first preset furnace inlet temperature threshold, the second preset furnace production time interval is greater than the first preset furnace production time interval, and the second preset superheat threshold is less than the first preset superheat threshold.
6. The method for producing weathering steel under multi-mode continuous casting and rolling according to claim 5, characterized in that, The determination of the target production mode corresponding to the nickel-free weathering steel under the current state, based on the casting machine speed during the continuous casting process, includes: If the casting speed of the non-nickel weathering steel to be produced is within the third casting speed threshold during the continuous casting process, then the target production mode corresponding to the non-nickel weathering steel to be produced in the current state is determined to be the headless rolling production mode, wherein the third casting speed threshold is greater than the second casting speed threshold.
7. The method for producing weathering steel under multi-mode continuous casting and rolling according to claim 6, characterized in that, The furnace temperature information includes the furnace outlet temperature information, and the superheat information includes third superheat information. For any of the target production modes, based on the furnace temperature information and superheat information of the nickel-free weathering steel under the target production mode, the nickel-free weathering steel is produced under the target production mode, and the production data of the nickel-free weathering steel under the target production mode is determined, including: For the semi-endless rolling production mode, the furnace exit temperature information of the nickel-free weathering steel in the endless rolling production mode is controlled within a preset furnace exit temperature threshold, and the third superheat information is controlled within a third preset superheat threshold. The nickel-free weathering steel in the target production mode is produced, and the production data of the nickel-free weathering steel in the target production mode is determined, wherein the third preset superheat threshold is less than the second preset superheat threshold.
8. A production apparatus for weathering steel under multi-mode continuous casting and rolling, characterized in that, The apparatus for producing weathering steel under multi-mode continuous casting and rolling includes: The first determining module is used to determine the production plan corresponding to the nickel-free weathering steel based on the production task of the nickel-free weathering steel to be produced, wherein the production plan includes multiple production modes for producing the nickel-free weathering steel; The first determining module is used to determine the target production mode corresponding to the nickel-free weathering steel to be produced in the current state based on the casting machine speed during the continuous casting process. The target production mode is used to characterize the selected production mode among multiple production modes. The third determining module is used to produce the nickel-free weathering steel under any of the target production modes based on the furnace temperature information and superheat information of the nickel-free weathering steel under the target production mode, and to determine the production data of the nickel-free weathering steel under the target production mode. The fourth determining module is used to determine whether the production task has been completed based on the production data of each of the target production modes.
9. An electronic device, characterized in that, include: The device includes a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. The machine-readable instructions are executed by the processor to perform the steps of the method for producing weathering steel under multi-mode continuous casting and rolling as described in any one of claims 1-7.
10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, performs the steps of the method for producing weathering steel under multi-mode continuous casting and rolling as described in any one of claims 1-7.