Method and system for micro-stress dynamic regulation and control rolling of up-drawn copper rod

Abstract

The invention relates to the technical field of copper material continuous casting, in particular to a micro-stress dynamic regulation and control rolling method and system for an up-drawing copper rod, and the method comprises the steps that basic information of a to-be-machined copper material is obtained, up-drawing continuous casting operation parameters are set, an initial drawing section is set according to the basic information of the to-be-machined copper material, and the to-be-machined copper material is cast into a first copper blank through the initial drawing section; stress monitoring is conducted on the first copper billet, a first stress monitoring result is obtained, and an embedded rolling section is arranged according to the first stress monitoring result; stress monitoring is conducted on the embedded rolling section, a second stress monitoring result is obtained, and reciprocating continuous casting or ending drawing is selected according to the second stress monitoring result; wherein the reciprocating continuous casting refers to alternate execution of drawing continuous casting and rolling continuous casting, and the ending drawing refers to final finish machining of upward continuous casting. Rolling continuous casting is embedded into upward drawing continuous casting by monitoring the stress state of the copper material in real time, the technological parameters are dynamically adjusted according to the monitoring result, and the quality stability of the copper rod is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of copper material continuous casting, and in particular to a method and a system for dynamically regulating and rolling micro-stress of an upper copper rod. Background Art

[0002] Upward copper rod is a high-purity copper product produced by upward continuous casting process, which is widely used in wires and cables, electronic components, communication equipment and other fields. Upward continuous casting is a continuous casting technology. Its basic principle is to quickly cool the molten copper through the crystallizer to form a continuous copper rod billet, and then gradually reduce the diameter of the copper rod through the drawing process to finally obtain the copper rod product of the required specifications.

[0003] During the copper rod manufacturing process, the presence of micro-stress may cause deformation, cracking and other problems in the subsequent processing or use of the product, affecting its mechanical properties and conductive properties. In order to optimize the performance of the copper rod, the traditional process usually uses offline annealing to eliminate residual stress, but this method not only interrupts the production process, but also increases energy consumption and time costs. The method of partially releasing residual stress through the compressive stress of rolling cannot be adjusted according to the real-time stress state of the copper rod because the rolling process parameters are usually fixed.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0005] The present invention provides a method and system for dynamically regulating and rolling an upper copper rod by micro-stress, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A method for dynamically regulating micro-stress rolling of an upper copper rod, the method comprising: Obtaining basic information of the copper material to be processed, setting the upward continuous casting operation parameters, and setting the initial drawing section according to the basic information of the copper material to be processed, and the copper material to be processed is cast into a first copper billet through the initial drawing section; Performing stress monitoring on the first copper billet to obtain a first stress monitoring result, and setting an embedded rolling section according to the first stress monitoring result; Performing stress monitoring on the embedded rolling section to obtain a second stress monitoring result, and selecting reciprocating continuous casting or finishing drawing according to the second stress monitoring result; The reciprocating continuous casting is performed by alternating drawing continuous casting and rolling continuous casting, and the finishing drawing is the final finishing of the upward continuous casting.

[0007] Further, selecting reciprocating continuous casting or finishing drawing according to the second stress monitoring result includes: Setting a continuous casting switching condition, and judging the second stress monitoring result according to the continuous casting switching condition while selecting the reciprocating continuous casting or the finishing drawing; If the reciprocating continuous casting is performed, a termination condition and a limit on the number of alternations are set, and stress monitoring is performed at each continuous casting stage; If the finishing drawing is performed, the drawing speed is adjusted, and a fine polishing die is selected to complete the copper rod forming.

[0008] Furthermore, a database for continuous casting is constructed, including: Collect historical continuous casting operation information, including historical basic information of copper materials to be processed, historical continuous casting operation parameters, historical alternating continuous casting information and historical quality information of formed copper rods; Constructing the continuous casting database to manage the historical continuous casting operation information, and generating a data link corresponding to the data items; Performing classified deep learning on the upward continuous casting database according to the data chain to obtain a deep learning result; The continuous casting switching condition, termination condition and alternation number limit are set according to the deep learning results.

[0009] Furthermore, an alternating continuous casting template is constructed for the reciprocating continuous casting, comprising: Obtaining a continuous casting index result according to the historical reference continuous casting operation information whose data link index data item is the historical alternating continuous casting information; The historical formed copper rod quality information is used as a screening data condition, and the classification target is the historical basic information of the copper material to be processed and the historical continuous casting operation parameters to perform deep learning on the continuous casting index result, and construct an alternating continuous casting template; The alternating continuous casting template is selected to perform reciprocating continuous casting according to the second stress monitoring result.

[0010] Further, obtaining the first stress monitoring result or the second stress monitoring result includes: Acquire microstress characteristic parameters of the first copper billet, and construct a stress distribution mapping relationship according to the correlation between the current drawing state and the microstress characteristic parameters; Constructing a stress distribution field according to the basic information of the processed copper material and the stress distribution mapping relationship; Obtaining contact stress distribution according to the basic information of the processed copper material and the stress distribution field; The overall deformation state of the first copper blank is analyzed according to the contact stress distribution.

[0011] Further, analyzing the overall deformation state of the first copper blank includes: Collecting copper billet deformation data multiple times in time sequence, and analyzing the correlation between the stress state and the deformation area of ​​the first copper billet based on the copper billet deformation data; Generate a real-time distribution model of the deformation field based on the copper billet deformation data and the correlation training; Identifying the stress distribution area of ​​the first copper billet according to the real-time distribution model of the deformation field, and evaluating the stress concentration degree of each stress distribution area; The overall deformation stress curve diagram of the copper rod during the rolling process is constructed by combining the copper billet deformation data with the stress distribution area.

[0012] Further, identifying the stress distribution area of ​​the first copper billet according to the real-time distribution model of the deformation field includes: By comparing the local maximum value of the stress distribution with the overall average stress value, the stress deviation between the local stress and the overall stress distribution is determined; Based on the stress deviation, identifying a stress concentration area; Setting a stress threshold and performing difference calculation with the stress deviation, and comparing the stress concentration area to distinguish a high stress area from a normal area; The stress concentration degree is obtained according to the difference of the stress thresholds, and the first stress monitoring result or the second stress monitoring result is generated.

[0013] Further, setting an embedded rolling section according to the first stress monitoring result includes: Obtaining stress distribution of the first copper billet based on the first stress monitoring result; According to the stress distribution, identifying a high stress area of ​​the first copper blank based on a set stress threshold; Determining the number of the embedded rolling segments and the embedding position of each embedded rolling segment according to the high stress area; Based on the first stress monitoring result, the rolling process parameters of each of the embedded rolling sections are set.

[0014] An upward copper rod micro-stress dynamic control rolling system, the system comprising: The initial drawing module obtains the basic information of the copper material to be processed, sets the upward continuous casting operation parameters, and sets the initial drawing section according to the basic information of the copper material to be processed. The copper material to be processed is cast into the first copper billet through the initial drawing section; A rolling monitoring module performs stress monitoring on the first copper billet, obtains a first stress monitoring result, and sets an embedded rolling section according to the first stress monitoring result; The process judgment module performs stress monitoring on the embedded rolling section to obtain a second stress monitoring result, and selects reciprocating continuous casting or finishing drawing according to the second stress monitoring result.

[0015] The technical solution of the present invention can achieve the following technical effects: The present invention embeds rolling continuous casting into upward drawing continuous casting by real-time monitoring of the stress state of the copper material, and dynamically adjusts the process parameters according to the monitoring results, thereby effectively improving the quality stability of the copper rod and reducing stress concentration and surface defects.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The schematic diagram of the process of the rolling method for dynamically regulating micro-stress of the upper copper rod is shown; Figure 2 A schematic diagram of the process for selecting reciprocating continuous casting or finishing drawing; Figure 3 A schematic diagram of the process for constructing an alternating continuous casting template; Figure 4 A schematic diagram of a process for obtaining a first stress monitoring result or a second stress monitoring result; Figure 5 Schematic diagram of the process of identifying stress distribution areas. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] Embodiment 1; like Figure 1As shown, the present application provides a method for dynamically regulating micro-stress rolling of an upper copper rod, the method comprising: S10: acquiring basic information of the copper material to be processed, setting the upward continuous casting operation parameters, and setting the initial drawing section according to the basic information of the copper material to be processed, and the copper material to be processed is cast into a first copper billet through the initial drawing section; S20: performing stress monitoring on the first copper billet to obtain a first stress monitoring result, and setting an embedded rolling section according to the first stress monitoring result; S30: performing stress monitoring on the embedded rolling section to obtain a second stress monitoring result, and selecting reciprocating continuous casting or finishing drawing according to the second stress monitoring result; Among them, reciprocating continuous casting is the alternating execution of drawing continuous casting and rolling continuous casting, and the finishing drawing is the final finishing of the upward continuous casting.

[0022] Specifically, first of all, it is necessary to obtain the basic information of the copper material to be processed. This information may include the chemical composition, initial size, surface state, etc. of the copper material, which can be collected through sensors, manual input or automated systems. By obtaining this basic information, it is possible to provide a basis for subsequent process settings. After obtaining the basic information, it is necessary to set appropriate upward continuous casting operation parameters according to the characteristics of the copper material. These parameters may include the temperature of the molten copper, the casting speed, the cooling speed, the drawing speed, etc. The setting of these parameters needs to be finely regulated according to the type, purpose and processing requirements of the copper material to ensure that the copper material avoids excessive cooling or excessive stretching during the casting process, thereby affecting the subsequent processing accuracy; after setting the upward continuous casting operation parameters, the copper material enters the initial drawing section. The purpose of this stage is to quickly solidify the molten copper through the mold and stretch it into a copper billet of a preliminary shape. During the drawing process, the size of the copper billet is ensured to be uniform by controlling the drawing speed, temperature and other parameters to avoid excessive stretching of the copper material. The copper material is stretched or deformed to a certain extent. After the initial drawing section, it enters the stress monitoring stage. An accurate stress monitoring system is used to detect the stress distribution of the copper material in real time. The monitoring system is usually installed on the surface or inside the copper material, and the real-time stress data is transmitted to the control system through the data transmission system. According to the stress monitoring results obtained in the first stage, if it is found that the stress distribution of the copper material is uneven or there is a large stress concentration area, the system will adjust the processing technology according to the set rules and set an embedded rolling section. The function of this rolling section is to further adjust the stress distribution of the copper material and optimize the shape and surface quality of the copper rod. By adjusting the rolling parameters, the stress concentration inside the copper material can be effectively reduced, and uneven mechanical properties of the finished product can be avoided. After the copper material enters the rolling section, stress monitoring is performed again. By real-time analysis of the stress monitoring data of the second stage, the system can evaluate the stress state of the copper material and determine whether it is necessary to continue alternating continuous casting or enter the subsequent finishing stage.

[0023] Through the technical solution of the present invention, the stress state of the copper material is monitored in real time, the rolling continuous casting is embedded in the upward drawing continuous casting, and the process parameters are dynamically adjusted according to the monitoring results, which effectively improves the quality stability of the copper rod and reduces stress concentration and surface defects.

[0024] Further, if Figure 2 As shown, reciprocating continuous casting or finishing drawing is selected according to the second stress monitoring result, including: Set the continuous casting switching conditions, and judge the second stress monitoring results according to the continuous casting switching conditions and select reciprocating continuous casting or finishing drawing; If reciprocating continuous casting is performed, the termination conditions and the number of alternations are set, and stress monitoring is performed at each continuous casting stage; If finishing drawing is performed, adjust the drawing speed and select a fine polishing die to complete the copper rod forming.

[0025] As a preferred embodiment of the above-mentioned embodiment, in this embodiment, the stress state of the copper material is obtained in real time through stress monitoring during the copper rod production process. Stress monitoring is mainly carried out by continuously collecting data through stress sensors on the production line to obtain real-time stress data of the copper material at each stage. By setting the continuous casting switching conditions, when the stress value reaches the preset threshold, the system will determine whether it is necessary to execute the reciprocating continuous casting process, or whether the conditions for the final drawing have been met. The continuous casting switching conditions are based on historical data and deep learning analysis to set the copper material stress threshold. Specifically, if the stress value is judged to be too high according to the stress monitoring results, the system will enter the reciprocating continuous casting stage to eliminate excessive stress. The reciprocating continuous casting process includes the alternating execution of drawing continuous casting and rolling continuous casting, that is, continuous casting and drawing are performed in an alternating manner to achieve stress balance and optimization of the copper material structure. In each reciprocating continuous casting stage, the stress changes are monitored in real time to ensure that the stress level of the copper material gradually decreases. , avoid problems such as cracks and deformation caused by excessive stress; after the reciprocating continuous casting stage is completed, if the stress of the copper material gradually drops to the appropriate range and the stress standard meets the requirements, the system will automatically switch to the final drawing stage. The final drawing mainly adjusts the drawing speed and cooling rate to complete the fine forming of the copper rod, and ensure that the surface of the copper material is smooth and the mechanical properties meet the requirements. In order to ensure the stability of the process, the system will set the termination conditions and the number of alternations of the drawing and rolling processes. After the stress of the copper material meets the standard and the preset drawing length is completed, the process will end automatically. In the reciprocating continuous casting or final drawing stage, the system will automatically terminate according to the final quality standard, stress value and size requirements of the copper material. Once the copper material reaches the predetermined stress range and size requirements, the production process will terminate to ensure that the produced copper rod meets the quality standards. If the switching conditions are still not met after exceeding the number of reciprocating continuous casting, manual intervention is required for inspection to ensure that there are no other production problems.

[0026] Furthermore, the construction of the continuous casting database includes: Collect historical continuous casting operation information, including historical basic information of copper materials to be processed, historical continuous casting operation parameters, historical alternating continuous casting information and historical quality information of formed copper rods; Construct a continuous casting database to manage the historical continuous casting operation information and generate data links for the corresponding data items; Perform deep classification learning on the upstream continuous casting database according to the data chain to obtain deep learning results; Set continuous casting switching conditions, termination conditions and alternation number limits based on deep learning results.

[0027] As a preferred embodiment of the above embodiment, it is necessary to establish an upward continuous casting database, which is used to collect, store and manage all historical data related to the upward continuous casting process. The content of the database includes: historical basic information of copper materials to be processed: including raw material type, specification, copper content, etc. of copper materials; historical upward continuous casting operation parameters: including drawing speed, temperature, pressure and other process parameters; historical alternating continuous casting information: including the number of alternations of reciprocating continuous casting, the duration of each stage, the interval between casting and drawing, etc.; historical formed copper rod quality information: including the appearance quality, mechanical properties, dimensional tolerance, etc. of the copper rod. These data items will be collected through sensors, monitoring systems, manual records and other methods, and stored in the database; the historical data stored in the database needs to be effectively Data chain management, data chain is organized according to the correlation between different data items, so that in the future production process, these data can be quickly called and analyzed. Each data chain records the process steps performed under specific conditions and the corresponding copper rod quality performance. Through deep learning of the established data chain, the intrinsic relationship between different process parameters and copper rod quality can be excavated. The goal of deep learning is to optimize the continuous casting switching conditions, termination conditions and alternation number limits by continuously analyzing a large amount of historical data, and ensure that it can achieve the best effect in actual production. In order to ensure the effect and accuracy of deep learning, it is necessary to classify and manage historical data, classify and store different types of production data, and further optimize the deep learning model according to the classification results. Among them, the data chain generation process can include: according to the historical continuous casting operation information and the historical alternating continuous casting information, establish associations for each production record to form a complete process flow chain; combine the historical molded copper rod quality information, and mark the quality results of each data chain to ensure that subsequent deep learning can be analyzed based on accurate quality information; classify and archive all historical data according to production batches, raw material types, process parameters, etc. to ensure the accuracy and traceability of the data.

[0028] Further, if Figure 3 As shown, an alternating continuous casting template is constructed for reciprocating continuous casting, including: According to the historical continuous casting operation information of the data link index data item being the historical alternating continuous casting information, a continuous casting index result is obtained; The quality information of historical formed copper rods is used as the screening data condition, and the classification target is the basic information of historical copper materials to be processed and the historical continuous casting operation parameters to conduct deep learning on the continuous casting index results, and construct an alternating continuous casting template; According to the second stress monitoring result, an alternating continuous casting template is selected to carry out reciprocating continuous casting.

[0029] As a preferred embodiment of the above embodiment, it is necessary to index the historical alternating continuous casting information from the above continuous casting database. The historical alternating continuous casting information includes the number of alternations of reciprocating continuous casting, the alternating cycle and the quality performance of copper rods under different conditions. After the indexing is completed, the alternating continuous casting template can be constructed based on the indexing results. The alternating continuous casting template can provide suitable reciprocating continuous casting strategies for different production scenarios through deep learning and optimization analysis of the historical alternating continuous casting information. The alternating continuous casting template includes the following contents: setting of the alternating cycle. By analyzing the impact of different alternating cycles on the quality of the copper rod, the alternating continuous casting template will set the optimal alternating cycle, which can not only effectively eliminate the stress inside the copper material, but also maximize the mechanical properties and surface quality of the copper rod; alternating number limit. In each round of reciprocating continuous casting, too much or too little will affect the quality of the final product. The alternating continuous casting template will provide the most suitable alternating number limit based on the results of historical data analysis. These restrictions ensure that optimal quality standards are achieved at every stage of the production process; during the actual production process, the system monitors the stress changes of the copper material in real time. When it is found that the stress is too large, the system will automatically refer to the pre-built alternating continuous casting template and combine the second stress monitoring results to select the most suitable alternating continuous casting template.

[0030] Further, if Figure 4 As shown, obtaining the first stress monitoring result or the second stress monitoring result includes: Acquire microstress characteristic parameters of the first copper billet, and construct a stress distribution mapping relationship according to the correlation between the current drawing state and the microstress characteristic parameters; According to the basic information of the processed copper material and the stress distribution mapping relationship, the stress distribution field is constructed; The contact stress distribution is obtained based on the basic information of the processed copper material and the stress distribution field; The overall deformation state of the first copper billet is analyzed based on the contact stress distribution.

[0031] As a preferred embodiment of the above embodiment, after the copper material is cast into the first copper billet through the initial drawing section, the first copper billet is monitored in real time using a stress sensor to collect microstress characteristic parameters of the copper billet, the microstress characteristic parameters including stress intensity, distribution mode, change rate, etc., to describe the stress state of the copper material at different processing stages; according to the correlation between the current drawing state and the collected microstress characteristic parameters, a mapping relationship of stress distribution is established to reflect the stress distribution characteristics of the copper billet under different drawing states; based on the stress distribution mapping relationship, combined with the basic information of the processed copper material (such as material properties, size, shape, etc.), a preliminary stress distribution field is constructed, which shows the stress spatial distribution characteristics of the copper material in the initial drawing section and helps analyze the stress conditions at different parts; combined with the basic information of the processed copper material and the preliminary stress distribution field, the contact stress distribution on the surface and inside of the copper material is obtained by calculating the stress transfer in the contact area of ​​the initial drawing section, which involves modeling the geometric shape of the contact area and the stress transfer path to calculate the stress value of each contact point; based on the contact stress distribution, the overall deformation state of the first copper billet is analyzed, focusing on evaluating the deformation of the stress concentration area and its influence on the shape and strength of the copper billet. Through stress analysis, the possible uneven deformation or stress concentration of the copper billet can be identified, providing data support and optimization basis for the subsequent rolling process.

[0032] Further, the overall deformation state of the first copper billet is analyzed, including: Collecting deformation data of the copper billet multiple times in time sequence, and analyzing the correlation between the stress state of the first copper billet and the deformation area based on the deformation data of the copper billet; Generate a real-time distribution model of the deformation field based on copper billet deformation data and correlation training; identifying the stress distribution area of ​​the first copper billet according to the real-time distribution model of the deformation field, and evaluating the stress concentration degree of each stress distribution area; Combining the copper billet deformation data with the stress distribution area, an overall deformation stress curve of the copper rod during the rolling process is constructed.

[0033] As a preferred embodiment of the above, when the copper material is processed by drawing and rolling, the deformation data of the copper billet during the drawing process is collected multiple times in chronological order, including parameters such as the shape change, size change, and deformation speed of the copper billet. The deformation data of the copper billet can be collected in real time by means of strain gauges, displacement sensors and other equipment; based on the deformation data of the copper billet, the correlation between the stress state and the deformation area of ​​the copper billet is analyzed, and by comparing the deformation conditions and stress distribution at different processing stages, it can be identified which areas have concentrated stress and larger deformation, and which areas show a more uniform deformation state. This process can be achieved through numerical simulation or experimental data fitting; based on the correlation between the deformation data of the copper billet and the stress state, a real-time distribution model of the deformation field is generated by using machine learning, data fitting or numerical methods to train, and the real-time distribution model of the deformation field can predict the deformation conditions at different rolling processes. The deformation state and stress concentration area of ​​the copper billet under the process parameters and stress distribution are determined. By real-time monitoring of the deformation data, the deformation field model can dynamically adjust and optimize the stress distribution; according to the real-time distribution model of the deformation field, the stress distribution area of ​​the first copper billet is identified. The real-time distribution model of the deformation field can help identify the stress levels of various areas in the first copper billet and evaluate the stress concentration degree of each area. High stress concentration areas usually require more adjustments or optimizations to prevent material defects or uneven deformation; combining the copper billet deformation data with the identified stress distribution area, construct an overall deformation stress curve diagram of the copper rod during the rolling process. The deformation stress curve diagram shows the stress distribution and deformation of the copper rod at different stages, which helps optimize the parameter settings during the rolling process, ensures that the stress of the copper rod is evenly distributed during the rolling process, and prevents excessive or uneven deformation.

[0034] Further, if Figure 5 As shown, the stress distribution area of ​​the first copper billet is identified according to the real-time distribution model of the deformation field, including: By comparing the local maximum value of the stress distribution with the overall average stress value, the stress deviation between the local stress and the overall stress distribution is determined; Identify stress concentration areas based on stress deviations; Set the stress threshold and calculate the difference with the stress deviation, compare the stress concentration area to distinguish the high stress area from the normal area; The stress concentration degree is obtained according to the difference of the stress thresholds, and a first stress monitoring result or a second stress monitoring result is generated.

[0035] As a preferred embodiment of the above, in the real-time distribution model of the deformation field, the local maximum stress value of each stress distribution area in the copper billet is first obtained, and compared with the overall average stress value of the entire copper billet, the stress deviation of each area is calculated by comparison, and the difference between the local stress and the overall stress distribution is identified; based on the stress deviation, the stress concentration area is further identified, and the stress concentration area refers to the area where the local stress is significantly higher than the overall average stress. These areas are usually subjected to a large degree of deformation pressure, which may affect the quality of the copper material or cause defects; according to the preset stress threshold, the difference is calculated with the calculated stress deviation, and the high stress area and the normal area are distinguished by comparing the stress threshold with the local stress deviation. If the difference exceeds the set threshold, the area is regarded as a high stress area and needs further processing; according to the difference of the stress threshold, the stress concentration degree of each stress distribution area is evaluated. The area with a high stress concentration degree may need to adjust the process parameters or add an embedded rolling section to avoid excessive deformation or stress damage. According to the evaluation result of each stress area, the first stress monitoring result or the second stress monitoring result is generated, which is provided to the subsequent processing steps as a basis for process control.

[0036] Further, setting the embedded rolling section according to the first stress monitoring result includes: Obtaining stress distribution of the first copper billet based on the first stress monitoring result; identifying a high stress region of the first copper blank based on a set stress threshold according to the stress distribution; determining the number of embedded rolling segments and the embedding position of each embedded rolling segment according to the high stress area; Based on the first stress monitoring result, the rolling process parameters of each embedded rolling section are set.

[0037] As a preferred embodiment of the above embodiment, after the copper material is cast into a first copper billet through the initial drawing section, a stress sensor is used to perform real-time stress monitoring on the first copper billet, and the stress distribution data of the copper billet during the rolling process is obtained through the stress sensor, and the stress change in the entire copper billet is analyzed to identify potential high stress areas; based on the obtained stress distribution data, a high stress area in the copper billet is identified by a set stress threshold. The high stress area is usually an area with uneven stress distribution, which may cause defects such as excessive local deformation or cracks. The stress threshold is optimized according to the material and processing requirements of the copper material to ensure accurate identification of the key area; according to the identified high stress area, the high stress area is identified. Stress area, determine the number and position of embedded rolling sections to be set. The embedded rolling sections should be set in the area of ​​stress concentration or uneven distribution after the initial drawing section to optimize the stress distribution of the copper material in the subsequent rolling process. The number and position are determined based on the size, shape and stress intensity of the high stress area to ensure that these areas are effectively treated; based on the first stress monitoring result, set appropriate rolling process parameters for each embedded rolling section. The rolling process parameters include roll gap, rolling speed, temperature, lubrication method, etc. The stress distribution is optimized by accurately setting the rolling process parameters to ensure that each embedded rolling section can evenly distribute the stress to prevent excessive local stress or uneven deformation.

[0038] Embodiment 2: Based on the same inventive concept as the method for dynamically regulating microstress rolling of an upper copper rod in the aforementioned embodiment, the present invention further provides a system for dynamically regulating microstress rolling of an upper copper rod, the system comprising: The initial drawing module obtains the basic information of the copper material to be processed, sets the upward continuous casting operation parameters, and sets the initial drawing section according to the basic information of the copper material to be processed. The copper material to be processed is cast into the first copper billet through the initial drawing section; A rolling monitoring module performs stress monitoring on the first copper billet, obtains a first stress monitoring result, and sets an embedded rolling section according to the first stress monitoring result; The process judgment module performs stress monitoring on the embedded rolling section to obtain a second stress monitoring result, and selects reciprocating continuous casting or finishing drawing according to the second stress monitoring result.

[0039] The above-mentioned adjustment system in the present invention can effectively realize the micro-stress dynamic control rolling method of the upper copper rod, and the technical effects that can be achieved are as described in the above-mentioned embodiments and will not be repeated here.

[0040] Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the accompanying drawings are merely exemplary illustrations of the present application as defined therein, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, a person skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application is intended to include these modifications and variations.

Claims

1. A method for dynamically regulating micro-stress rolling of an upper copper rod, characterized in that: The method comprises: Obtaining basic information of the copper material to be processed, setting the upward continuous casting operation parameters, and setting the initial drawing section according to the basic information of the copper material to be processed, and the copper material to be processed is cast into a first copper billet through the initial drawing section; Performing stress monitoring on the first copper billet to obtain a first stress monitoring result, and setting an embedded rolling section according to the first stress monitoring result; Performing stress monitoring on the embedded rolling section to obtain a second stress monitoring result, and selecting reciprocating continuous casting or finishing drawing according to the second stress monitoring result; The reciprocating continuous casting is performed by alternating drawing continuous casting and rolling continuous casting, and the finishing drawing is the final finishing of the upward continuous casting.

2. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 1, characterized in that: Selecting reciprocating continuous casting or finishing drawing according to the second stress monitoring result includes: Setting a continuous casting switching condition, and judging the second stress monitoring result according to the continuous casting switching condition while selecting the reciprocating continuous casting or the finishing drawing; If the reciprocating continuous casting is performed, a termination condition and a limit on the number of alternations are set, and stress monitoring is performed at each continuous casting stage; If the finishing drawing is performed, the drawing speed is adjusted, and a fine polishing die is selected to complete the copper rod forming.

3. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 2, characterized in that: Construct the database of continuous casting, including: Collect historical continuous casting operation information, including historical basic information of copper materials to be processed, historical continuous casting operation parameters, historical alternating continuous casting information and historical quality information of formed copper rods; Constructing the continuous casting database to manage the historical continuous casting operation information, and generating a data link corresponding to the data items; Performing classified deep learning on the upward continuous casting database according to the data chain to obtain a deep learning result; The continuous casting switching condition, termination condition and alternation number limit are set according to the deep learning results.

4. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 3, characterized in that: The alternating continuous casting template is constructed for the reciprocating continuous casting, comprising: Obtaining a continuous casting index result according to the historical reference continuous casting operation information whose data link index data item is the historical alternating continuous casting information; The historical formed copper rod quality information is used as a screening data condition, and the classification target is the historical basic information of the copper material to be processed and the historical continuous casting operation parameters to perform deep learning on the continuous casting index result, and construct an alternating continuous casting template; The alternating continuous casting template is selected to perform reciprocating continuous casting according to the second stress monitoring result.

5. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 1, characterized in that: Obtaining a first stress monitoring result or a second stress monitoring result, including: Acquire microstress characteristic parameters of the first copper billet, and construct a stress distribution mapping relationship according to the correlation between the current drawing state and the microstress characteristic parameters; Constructing a stress distribution field according to the basic information of the processed copper material and the stress distribution mapping relationship; Obtaining contact stress distribution according to the basic information of the processed copper material and the stress distribution field; The overall deformation state of the first copper blank is analyzed according to the contact stress distribution.

6. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 5, characterized in that: Analyzing the overall deformation state of the first copper billet, including: Collecting copper billet deformation data multiple times in time sequence, and analyzing the correlation between the stress state and the deformation area of ​​the first copper billet based on the copper billet deformation data; Generate a real-time distribution model of the deformation field based on the copper billet deformation data and the correlation training; Identifying the stress distribution area of ​​the first copper billet according to the real-time distribution model of the deformation field, and evaluating the stress concentration degree of each stress distribution area; The overall deformation stress curve diagram of the copper rod during the rolling process is constructed by combining the copper billet deformation data with the stress distribution area.

7. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 6, characterized in that: Identifying the stress distribution area of ​​the first copper billet according to the real-time distribution model of the deformation field includes: By comparing the local maximum value of the stress distribution with the overall average stress value, the stress deviation between the local stress and the overall stress distribution is determined; Based on the stress deviation, identifying a stress concentration area; Setting a stress threshold and performing difference calculation with the stress deviation, and comparing the stress concentration area to distinguish a high stress area from a normal area; The stress concentration degree is obtained according to the difference of the stress thresholds, and the first stress monitoring result or the second stress monitoring result is generated.

8. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 1, characterized in that: Setting an embedded rolling section according to the first stress monitoring result includes: Obtaining stress distribution of the first copper billet based on the first stress monitoring result; According to the stress distribution, identifying a high stress area of ​​the first copper blank based on a set stress threshold; Determining the number of the embedded rolling segments and the embedding position of each embedded rolling segment according to the high stress area; Based on the first stress monitoring result, the rolling process parameters of each of the embedded rolling sections are set.

9. The micro-stress dynamic control rolling system of the upper copper rod is characterized by: The system comprises: The initial drawing module obtains the basic information of the copper material to be processed, sets the upward continuous casting operation parameters, and sets the initial drawing section according to the basic information of the copper material to be processed. The copper material to be processed is cast into the first copper billet through the initial drawing section; A rolling monitoring module performs stress monitoring on the first copper billet, obtains a first stress monitoring result, and sets an embedded rolling section according to the first stress monitoring result; The process judgment module performs stress monitoring on the embedded rolling section to obtain a second stress monitoring result, and selects reciprocating continuous casting or finishing drawing according to the second stress monitoring result.

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