Method and system for dynamically regulating and controlling micro-stress during upward-drawing copper rod rolling

Abstract

The present invention relates to the technical field of continuous casting of copper materials, and particularly to a method and system for dynamically regulating the micro-stress of up-drawn copper rods during rolling. The method includes: obtaining the basic information of the copper material to be processed, setting the operation parameters of up-drawn continuous casting, and setting the initial drawing section according to the basic information of the processed copper material. The copper material to be processed is cast into a first copper billet through the initial drawing section; stress monitoring is carried out on the first copper billet to obtain the first stress monitoring result, and the embedded rolling section is set according to the first stress monitoring result; stress monitoring is carried out on the embedded rolling section to obtain the second stress monitoring result, and reciprocating continuous casting or finishing drawing is selected according to the second stress monitoring result; wherein, reciprocating continuous casting is the alternating execution of drawing continuous casting and rolling continuous casting, and finishing drawing is the final finishing of up-drawn continuous casting. By monitoring the stress state of the copper material in real time, the present invention embeds rolling continuous casting into up-drawn drawing continuous casting and dynamically adjusts the process parameters according to the monitoring results, effectively improving the quality stability of the copper rod.

Description

Technical Field

[0001] The present invention relates to the technical field of continuous casting of copper materials, and particularly to a method and system for dynamically regulating and controlling the micro-stress of up-drawn copper rods during rolling. Background Art

[0002] Up-drawn copper rods are high-purity copper material products produced by the up-drawing continuous casting process, and are widely used in fields such as wire and cable, electronic components, and communication equipment. Up-drawing continuous casting is a continuous casting technology, and its basic principle is to rapidly cool the molten copper liquid through a mold to form a continuous copper rod blank, and then gradually reduce the diameter of the copper rod through a drawing process to finally obtain a copper rod product of the required specification.

[0003] During the manufacturing process of copper rods, the existence of micro-stress may cause problems such as deformation and cracking of the products during subsequent processing or use, affecting their mechanical properties and electrical conductivity. In order to optimize the performance of copper rods, traditional processes usually use off-line annealing to eliminate residual stress, but this method not only interrupts the production process, but also increases energy consumption and time costs. And the method of partially releasing residual stress through the compressive stress action of rolling, due to the usually fixed rolling process parameters, cannot be adjusted according to the real-time stress state of the copper rod.

[0004] The information disclosed in this background art section is only intended to deepen the understanding of the overall background art of the present disclosure, and should not be regarded as an admission or any form of suggestion that this 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 controlling the micro-stress of up-drawn copper rods, which can effectively solve the problems in the background art.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A method for dynamically regulating and controlling the micro-stress of up-drawn copper rods, the method comprising:

[0008] Obtain the basic information of the copper material to be processed, set the up-drawing continuous casting operation parameters, and set an initial drawing section according to the basic information of the copper material to be processed. The copper material to be processed is cast into a first copper blank through the initial drawing section;

[0009] Monitor the stress of the first copper blank to obtain a first stress monitoring result, and set an embedded rolling section according to the first stress monitoring result;

[0010] Monitor the stress of the embedded rolling section to obtain a second stress monitoring result, and select reciprocating continuous casting or finishing drawing according to the second stress monitoring result;

[0011] Among them, the reciprocating continuous casting is to alternately perform drawing continuous casting and rolling continuous casting, and the finishing drawing is the final finishing of upward continuous casting.

[0012] Further, selecting reciprocating continuous casting or finishing drawing according to the second stress monitoring result includes:

[0013] Setting continuous casting switching conditions, and judging the second stress monitoring result according to the continuous casting switching conditions and simultaneously selecting the reciprocating continuous casting or the finishing drawing;

[0014] If the reciprocating continuous casting is performed, setting termination conditions and alternating times limits, and performing stress monitoring on each continuous casting stage;

[0015] If the finishing drawing is performed, adjusting the drawing speed and selecting a fine polishing die to complete the forming of the copper rod.

[0016] Further, constructing an upward continuous casting database includes:

[0017] Collecting historical upward continuous casting operation information, and the data items include basic information of historical copper materials to be processed, historical upward continuous casting operation parameters, historical alternating continuous casting information, and historical formed copper rod quality information;

[0018] Constructing the upward continuous casting database to manage the historical upward continuous casting operation information, and generating a data chain corresponding to the data items;

[0019] Performing classified deep learning on the upward continuous casting database according to the data chain to obtain a deep learning result;

[0020] Setting the continuous casting switching conditions, termination conditions, and alternating times limits according to the deep learning result.

[0021] Further, constructing an alternating continuous casting template for the reciprocating continuous casting includes:

[0022] Indexing the data items in the data chain as the historical alternating continuous casting information in the historical upward continuous casting operation information to obtain a continuous casting indexing result;

[0023] Using the historical formed copper rod quality information as screening data conditions, and performing deep learning on the continuous casting indexing result with the classification targets being the basic information of the historical copper materials to be processed and the historical upward continuous casting operation parameters to construct an alternating continuous casting template;

[0024] Selecting the alternating continuous casting template according to the second stress monitoring result for reciprocating continuous casting.

[0025] Further, obtaining the first stress monitoring result or the second stress monitoring result includes:

[0026] Obtain the micro-stress 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 micro-stress characteristic parameters;

[0027] Construct a stress distribution field according to the basic information of the processed copper material and the stress distribution mapping relationship;

[0028] Obtain the contact stress distribution according to the basic information of the processed copper material and the stress distribution field;

[0029] Analyze the overall deformation state of the first copper billet according to the contact stress distribution.

[0030] Further, analyzing the overall deformation state of the first copper billet includes:

[0031] Collect the copper billet deformation data multiple times in chronological order, and analyze the correlation between the stress state and the deformation region of the first copper billet based on the copper billet deformation data;

[0032] Train and generate a real-time distribution model of the deformation field based on the copper billet deformation data and the correlation;

[0033] Identify the stress distribution region of the first copper billet according to the real-time distribution model of the deformation field, and evaluate the stress concentration degree of each stress distribution region;

[0034] Combine the copper billet deformation data with the stress distribution region to construct an overall deformation stress curve graph of the copper rod during rolling.

[0035] Further, identifying the stress distribution region of the first copper billet according to the real-time distribution model of the deformation field includes:

[0036] Compare the local maximum value of the stress distribution with the overall average stress value to determine the stress deviation between the local stress and the overall stress distribution;

[0037] Identify the stress concentration region based on the stress deviation;

[0038] Set a stress threshold and perform a difference calculation with the stress deviation, and distinguish the high-stress region from the normal region by comparing the stress concentration region;

[0039] Obtain the stress concentration degree according to the difference value of the stress threshold, and generate the first stress monitoring result or the second stress monitoring result.

[0040] Further, setting the embedded rolling section according to the first stress monitoring result includes:

[0041] Obtain the stress distribution of the first copper billet based on the first stress monitoring result;

[0042] Based on the stress distribution, identify the high-stress regions of the first copper billet based on a set stress threshold;

[0043] Determine the number of the embedded rolling sections and the embedding positions of each of the embedded rolling sections according to the high-stress regions;

[0044] Based on the first stress monitoring result, set the rolling process parameters for each of the embedded rolling sections.

[0045] The up-drawing copper rod micro-stress dynamic regulation rolling system, the system includes:

[0046] An initial drawing module, which obtains the basic information of the copper material to be processed, sets the up-drawing continuous casting operation parameters, and sets an initial drawing section according to the basic information of the copper material to be processed. The copper material to be processed is cast into a first copper billet through the initial drawing section;

[0047] A rolling monitoring module, which monitors the stress of the first copper billet, obtains a first stress monitoring result, and sets an embedded rolling section according to the first stress monitoring result;

[0048] A process judgment module, which monitors the stress of the embedded rolling section, obtains a second stress monitoring result, and selects reciprocating continuous casting or finishing drawing according to the second stress monitoring result.

[0049] Through the technical solution of the present invention, the following technical effects can be achieved:

[0050] The present invention embeds rolling continuous casting into up-drawing continuous casting by real-time monitoring the stress state of the copper material, and dynamically adjusts the process parameters according to the monitoring results, effectively improving the quality stability of the copper rod and reducing stress concentration and surface defects.

[0051] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically gives the specific embodiments of the present application. Brief Description of the Drawings

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0053] Figure 1 It is a flow schematic diagram of the up-drawing copper rod micro-stress dynamic regulation rolling method;

[0054] Figure 2Schematic diagram of the process for selecting continuous casting with reciprocation or finishing drawing

[0055] Figure 3 Schematic diagram of the process for constructing an alternating continuous casting template

[0056] Figure 4 Schematic diagram of the process for obtaining the first stress monitoring result or the second stress monitoring result

[0057] Figure 5 Schematic diagram of the process for identifying the stress distribution area Specific embodiments

[0058] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the description 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 of the related listed items.

[0060] Embodiment 1;

[0061] As Figure 1 shown, the present application provides a method for dynamically regulating the micro-stress of up-drawn copper rods, and the method includes:

[0062] S10: Obtain the basic information of the copper material to be processed, set the up-drawing continuous casting operation parameters, and set the initial drawing section according to the basic information of the processed copper material. The copper material to be processed is cast into a first copper billet through the initial drawing section;

[0063] S20: Monitor the stress of the first copper billet to obtain the first stress monitoring result, and set the embedded rolling section according to the first stress monitoring result;

[0064] S30: Monitor the stress of the embedded rolling section to obtain the second stress monitoring result, and select continuous casting with reciprocation or finishing drawing according to the second stress monitoring result;

[0065] Among them, continuous casting with reciprocation is the alternating execution of drawing continuous casting and rolling continuous casting, and finishing drawing is the final finishing of up-drawing continuous casting.

[0066] Specifically, first, the basic information of the copper material to be processed needs to be obtained. This information can include the chemical composition, initial dimensions, surface condition, etc. of the copper material, which can be collected through sensors, manual input, or an automated system. By obtaining this basic information, it can provide a basis for subsequent process settings. After obtaining the basic information, appropriate up-drawing continuous casting operation parameters need to be set according to the characteristics of the copper material. These parameters can include the temperature of molten copper, casting speed, cooling speed, drawing speed, etc. The setting of these parameters needs to be finely adjusted according to the type, use, and processing requirements of the copper material to ensure that the copper material is prevented from rapid cooling or excessive stretching during the casting process, thus affecting the subsequent processing accuracy. After setting the up-drawing 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 a die and draw it into a copper billet with a preliminary shape. During the drawing process, by controlling parameters such as the drawing speed and temperature, ensure that the dimensions of the copper billet are uniform and prevent the copper material from excessive stretching or deformation. When the copper material passes through the initial drawing section, it enters the stress monitoring link. 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 of the copper material, and the real-time stress data is transmitted to the control system through a 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 are large stress concentration areas, the system will adjust the processing technology according to the set rules and set an embedded rolling section. The role 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 carried out again. By analyzing the stress monitoring data in the second stage in real time, the system can evaluate the stress state of the copper material and determine whether to continue with alternate continuous casting or enter the subsequent finishing stage.

[0067] 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 up-drawing continuous casting, and the process parameters are dynamically adjusted according to the monitoring results, effectively improving the quality stability of the copper rod and reducing stress concentration and surface defects.

[0068] Furthermore, as Figure 2 shown, selecting reciprocating continuous casting or finishing drawing according to the second stress monitoring results includes:

[0069] Setting the continuous casting switching conditions, and judging the second stress monitoring results according to the continuous casting switching conditions and simultaneously selecting reciprocating continuous casting or finishing drawing;

[0070] If reciprocating continuous casting is performed, setting the termination conditions and the limit of the number of alternations, and monitoring the stress of each continuous casting stage;

[0071] If finishing drawing is performed, adjust the drawing speed and select a fine polishing die to complete the forming of the copper rod.

[0072] As a preference of the above embodiment, in this embodiment, during the production process of the copper rod, the stress state of the copper material is obtained in real time through stress monitoring. The stress monitoring is mainly carried out by continuously collecting through stress sensors on the production line to obtain the stress data of the copper material at each stage in real time. By setting the continuous casting switching conditions, when the stress value reaches the preset threshold, the system will judge whether to perform the reciprocating continuous casting process or whether the conditions for finishing drawing have been reached. The continuous casting switching conditions are the set stress thresholds of the copper material based on historical data and deep learning analysis. Specifically, if it is judged according to the stress monitoring results that the stress value is too high, 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 carried out alternately to achieve stress balance and optimize the structure of the copper material. In each reciprocating continuous casting stage, by monitoring the stress change in real time, it is ensured that the stress level of the copper material gradually decreases, avoiding problems such as cracks and deformations caused by excessive stress; after the reciprocating continuous casting stage is completed, if the stress of the copper material gradually drops to a suitable range and the stress standard meets the requirements, the system will automatically switch to the finishing drawing stage. The finishing drawing mainly completes the fine forming of the copper rod by adjusting the drawing speed and the cooling rate, and ensures that the surface of the copper material is smooth and the mechanical properties meet the requirements. To ensure the stability of the process, the system will set termination conditions and the number limit of the alternating drawing and rolling process. After the stress of the copper material meets the standard and the preset drawing length is completed, the process will automatically end. In the reciprocating continuous casting or finishing 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 standard. If the switching conditions are still not reached after exceeding the number of reciprocating continuous casting, manual intervention is required for inspection to ensure that there are no other production problems.

[0073] Furthermore, build an upward continuous casting database, including:

[0074] Collect historical upward continuous casting operation information, and the data items include the basic information of the historical copper material to be processed, the historical upward continuous casting operation parameters, the historical alternating continuous casting information, and the quality information of the historical formed copper rod;

[0075] Build an upward continuous casting database to manage the historical upward continuous casting operation information and generate a data chain for the corresponding data items;

[0076] Perform classified deep learning on the upward continuous casting database according to the data chain to obtain the deep learning results;

[0077] Set the continuous casting switching conditions, termination conditions, and the number limit of alternations according to the deep learning results.

[0078] Preferably, for the above embodiments, an upward continuous casting database needs to be established. This database is used to collect, store, and manage all historical data related to the upward continuous casting process. The content of the database includes: basic information of historical copper materials to be processed: including raw material types, specifications, copper content, etc. of the copper materials; historical upward continuous casting operation parameters: including process parameters such as drawing speed, temperature, pressure, etc.; historical alternate continuous casting information: including the number of alternations in reciprocating continuous casting, the duration of each stage, the interval time between casting and drawing, etc.; historical formed copper rod quality information: including the appearance quality, mechanical properties, dimensional tolerances, etc. of the copper rods. These data items will be collected through various methods such as sensors, monitoring systems, and manual records, and stored in the database. The historical data stored in the database needs to be effectively managed in a data chain. The data chain is organized based on the relevance between different data items, so that in future production processes, these data can be quickly retrieved and analyzed. Each data chain records the process steps executed under specific conditions and their corresponding copper rod quality performance. By performing deep learning on the established data chains, the internal relationship between different process parameters and copper rod quality can be mined. 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 results in actual production. To ensure the effect and accuracy of deep learning, the historical data needs to be classified and managed. Different types of production data are classified and stored, and the deep learning model is further optimized based on the classification results. Among them, the generation process of the data chain can include: establishing associations for each production record based on the historical upward continuous casting operation information and historical alternate continuous casting information to form a complete process flow chain; combining the historical formed copper rod quality information to label the quality results of each data chain to ensure that subsequent deep learning can be analyzed based on accurate quality information; classifying and archiving all historical data according to production batches, raw material types, process parameters, etc. to ensure the accuracy and traceability of the data.

[0079] Furthermore, as Figure 3 shown, an alternate continuous casting template is constructed for reciprocating continuous casting, including:

[0080] Obtaining a continuous casting index result according to the data chain index data item for the historical upward continuous casting operation information of the historical alternate continuous casting information;

[0081] Using the historical formed copper rod quality information as the screening data condition, and performing deep learning on the continuous casting index result with the classification targets being the basic information of historical copper materials to be processed and the historical upward continuous casting operation parameters to construct an alternate continuous casting template;

[0082] Selecting an alternate continuous casting template for reciprocating continuous casting according to the second stress monitoring result.

[0083] As a preference of the above embodiments, it is necessary to index the historical alternative continuous casting information from the above-mentioned continuous casting database. The historical alternative continuous casting information includes the number of alternations, the alternation period of the reciprocating continuous casting, and the copper rod quality performance under different conditions. After the indexing is completed, an alternative continuous casting template can be constructed based on the indexing results. Through in-depth learning and optimized analysis of the historical alternative continuous casting information, the alternative continuous casting template can provide appropriate reciprocating continuous casting strategies for different production scenarios. The alternative continuous casting template includes the following contents: setting of the alternation period. By analyzing the influence of different alternation periods on the quality of copper rods, the alternative continuous casting template will set the optimal alternation period, which can not only effectively eliminate the internal stress of copper materials, but also maximize the mechanical properties and surface quality of copper rods; limitation of the number of alternations. In each round of reciprocating continuous casting process, too many or too few alternations will affect the quality of the final product. The alternative continuous casting template will provide the most suitable limitation of the number of alternations according to the results of historical data analysis. These limitations ensure that the best quality standards can be achieved at each stage of the production process. In the actual production process, the system will monitor the stress change of copper materials in real time. When it is found that the stress is too large, the system will automatically refer to the pre-constructed alternative continuous casting template and combine it with the second stress monitoring result to select the most suitable alternative continuous casting template.

[0084] Furthermore, as Figure 4 shown, obtaining the first stress monitoring result or the second stress monitoring result includes:

[0085] Obtaining the micro-stress characteristic parameters of the first copper billet, and constructing a stress distribution mapping relationship according to the correlation between the current drawing state and the micro-stress characteristic parameters;

[0086] Constructing a stress distribution field according to the basic information of the processed copper material and the stress distribution mapping relationship;

[0087] Obtaining the contact stress distribution according to the basic information of the processed copper material and the stress distribution field;

[0088] Analyzing the overall deformation state of the first copper billet according to the contact stress distribution.

[0089] As a preference of the above embodiments, after the copper material is cast into the first copper billet through the initial drawing section, a stress sensor is used to monitor the first copper billet in real time, and the micro-stress characteristic parameters of the copper billet are collected. The micro-stress characteristic parameters include stress intensity, distribution pattern, change rate, etc., which are used 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 micro-stress 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, dimensions, shape, etc.), a preliminary stress distribution field is constructed. The preliminary stress distribution field shows the stress spatial distribution characteristics of the copper material in the initial drawing section, which helps to analyze the stress conditions of different parts; combined with the basic information of the processed copper material and the preliminary stress distribution field, by calculating the stress transfer in the contact area of the initial drawing section, the contact stress distribution on the surface and inside of the copper material is obtained, 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, and the deformation of the stress concentration area and its impact on the shape and strength of the copper billet are mainly evaluated. Through stress analysis, the possible uneven deformation or stress concentration phenomenon of the copper billet is identified, which provides data support and optimization basis for the subsequent rolling process.

[0090] Furthermore, analyzing the overall deformation state of the first copper billet includes:

[0091] Collecting the deformation data of the copper billet multiple times in chronological order, and based on the deformation data of the copper billet, analyzing the correlation between the stress state of the first copper billet and the deformation area;

[0092] Training and generating a real-time distribution model of the deformation field based on the deformation data of the copper billet and the correlation;

[0093] 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;

[0094] Combining the deformation data of the copper billet and the stress distribution area, and constructing an overall deformation stress curve graph of the copper rod during the rolling process.

[0095] As a preference of the above embodiments, when the copper material is processed by drawing and rolling, the deformation data of the copper billet during the drawing process are 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 devices such as strain gauges and displacement sensors. Based on the deformation data of the copper billet, the correlation between the stress state of the copper billet and the deformation region is analyzed. By comparing the deformation conditions and stress distributions in different processing stages, it is possible to identify which regions have large stress concentration and deformation, and which regions exhibit a relatively 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 trained using machine learning, data fitting, or numerical methods. The real-time distribution model of the deformation field can predict the deformation state and stress concentration region of the copper billet under different rolling process parameters and stress distributions. By monitoring the deformation data in real time, 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 region of the first copper billet is identified. The real-time distribution model of the deformation field can help identify the stress level in each region of the first copper billet and evaluate the stress concentration degree of each region. High stress concentration regions usually require more adjustments or optimizations to prevent material defects or non-uniform deformation. Combining the deformation data of the copper billet with the identified stress distribution region, an overall deformation stress curve of the copper rod during the rolling process is constructed. The deformation stress curve shows the stress distribution and deformation conditions of the copper rod at different stages, helping to optimize the parameter settings during the rolling process and ensure uniform stress distribution and prevent excessive or non-uniform deformation of the copper rod during the rolling process.

[0096] Furthermore, as Figure 5 shown, identifying the stress distribution region of the first copper billet according to the real-time distribution model of the deformation field includes:

[0097] Comparing the local maximum value of the stress distribution with the overall average stress value to determine the stress deviation between the local stress and the overall stress distribution;

[0098] Based on the stress deviation, identifying the stress concentration region;

[0099] Setting a stress threshold and calculating the difference with the stress deviation, and distinguishing the high stress region from the normal region by comparing the stress concentration region;

[0100] Obtaining the stress concentration degree according to the difference of the stress threshold, and generating the first stress monitoring result or the second stress monitoring result.

[0101] As a preference of the above embodiments, in the real-time distribution model of the deformation field, first, obtain the local maximum stress values of each stress distribution region in the copper billet, and compare them with the overall average stress value of the entire copper billet. Calculate the stress deviation of each region through the comparison, and identify the difference between the local stress and the overall stress distribution. Based on the stress deviation, further identify the stress concentration regions. The stress concentration regions refer to the regions where the local stress is significantly higher than the overall average stress. These regions usually receive a relatively large degree of deformation pressure, which may affect the quality of the copper material or cause defects. According to the preset stress threshold, perform a difference calculation with the calculated stress deviation. By comparing the stress threshold with the local stress deviation, distinguish the high-stress regions and the normal regions. If the difference exceeds the set threshold, this region is regarded as a high-stress region and needs further processing. According to the magnitude of the difference between the stress thresholds, evaluate the stress concentration degree of each stress distribution region. The regions with a higher stress concentration degree may need to avoid excessive deformation or stress damage by adjusting process parameters or adding embedded rolling sections. Based on the evaluation results of each stress region, generate the first stress monitoring result or the second stress monitoring result, and provide it to the subsequent processing steps as a basis for process control.

[0102] Furthermore, setting the embedded rolling sections according to the first stress monitoring result includes:

[0103] Obtain the stress distribution of the first copper billet based on the first stress monitoring result;

[0104] According to the stress distribution, identify the high-stress regions of the first copper billet based on the set stress threshold;

[0105] Determine the number of embedded rolling sections and the embedding positions of each embedded rolling section according to the high-stress regions;

[0106] Based on the first stress monitoring result, set the rolling process parameters of each embedded rolling section.

[0107] As a preference of the above embodiments, after the copper material is cast into the first copper billet through the initial drawing section, a stress sensor is used to monitor the stress of the first copper billet in real time, and stress distribution data of the copper billet during the rolling process is obtained through the stress sensor. The change of stress in the whole copper billet is analyzed to identify potential high-stress areas; based on the obtained stress distribution data, high-stress areas in the copper billet are identified through a set stress threshold. High-stress areas are usually areas 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 key areas; according to the identified high-stress areas, the number and position of the embedded rolling sections to be set are determined. The embedded rolling sections should be set in the areas with stress concentration or uneven distribution after the initial drawing section to optimize the stress distribution of the copper material during the subsequent rolling process. The determination of the number and position is based on the size, shape, and stress intensity of the high-stress areas to ensure that these areas are effectively processed; based on the first stress monitoring result, appropriate rolling process parameters are set for each embedded rolling section. The rolling process parameters include roll gap, rolling speed, temperature, lubrication method, etc. By accurately setting the rolling process parameters, the stress distribution is optimized to ensure that each embedded rolling section can evenly distribute stress and prevent excessive local stress or uneven deformation.

[0108] Embodiment Two;

[0109] Based on the same inventive concept as the upward continuous casting copper rod micro-stress dynamic control rolling method in the foregoing embodiments, the present invention also provides an upward continuous casting copper rod micro-stress dynamic control rolling system, which includes:

[0110] An initial drawing module, which 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;

[0111] A rolling monitoring module, which monitors the stress of the first copper billet, obtains the first stress monitoring result, and sets the embedded rolling section according to the first stress monitoring result;

[0112] A process judgment module, which monitors the stress of the embedded rolling section, obtains the second stress monitoring result, and selects reciprocating continuous casting or finishing drawing according to the second stress monitoring result.

[0113] The above adjustment system in the present invention can effectively implement the upward continuous casting copper rod micro-stress dynamic control rolling method, and the technical effects that can be achieved are as described in the above embodiments, which will not be elaborated here.

[0114] Although the present application has been described in connection with specific features and their embodiments, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the present application. Accordingly, the present specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various changes and modifications 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 equivalent technologies, the present application is intended to include these changes and modifications.

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; Wherein, the 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; 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.

2. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 1, 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.

3. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 2, 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.

4. 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.

5. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 4, 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.

6. The method for dynamically regulating microstress rolling of an upper copper rod according to claim 5, 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.

7. 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.

8. The micro-stress dynamic control rolling system of the upper copper rod is characterized by: The method for dynamically regulating micro-stress rolling of an upper copper rod according to claim 1 is adopted, wherein 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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