Temperature control system and method for producing oxygen-free copper rod based on up-drawing method

Abstract

The invention relates to the technical field of industrial manufacturing temperature control, and discloses a temperature control system and method for producing an oxygen-free copper rod based on an up-casting method, and the method comprises the steps: obtaining the temperature information of a heating furnace, the thickness and melting information of the copper rod, and the gas information of the heating furnace; and area division is conducted on the interior of the heating furnace according to temperature analysis, the real-time temperature of each divided area is obtained, and the temperature gradient in the heating furnace is determined. And determining the initial heating temperature of the heating furnace according to the thickness and the melting information of the copper rod. And the traction speed of the copper rod, the preset thickness of the copper rod after traction and the temperature distribution gradient of the copper rod are obtained, an adjustment coefficient is determined according to the temperature distribution gradient of the copper rod, the traction speed, the preset thickness of the copper rod after traction, the temperature gradient in the heating furnace and the gas information, and the initial heating temperature is adjusted according to the adjustment coefficient. According to the method, multiple factors are comprehensively considered, the heating temperature is dynamically adjusted, and it is ensured that the temperature is uniform and heating is accurate in the oxygen-free copper rod manufacturing process.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial manufacturing temperature control, and in particular to a temperature control system and method for producing oxygen-free copper rods based on an up-drawing method. Background Art

[0002] In the production process of oxygen-free copper rods, temperature control is one of the key factors affecting the quality of copper rods. Especially in the production process of the upward drawing method, the copper rod needs to undergo a uniform heating process in the heating furnace to ensure that the copper rod can reach the predetermined temperature distribution during the pulling process. However, due to the uneven temperature distribution inside the heating furnace, the complex gas composition, and the differences in the thickness and melting characteristics of the copper rod itself, how to accurately control the heating temperature and temperature gradient has become a technical problem that needs to be solved in production.

[0003] At present, most traditional temperature control methods are based on controlling the overall temperature of the heating furnace and setting the heating temperature through empirical parameters. However, this method cannot cope with the temperature differences in different areas of the heating furnace and the influence of the thickness change of the copper rod on the heating effect in real time, which can easily lead to uneven heating or excessive or insufficient temperature control, thus affecting the mechanical properties and conductivity of the copper rod.

[0004] Therefore, it is urgent to invent a temperature control technology for producing oxygen-free copper rods to solve the problem that traditional temperature control methods cannot respond to the differences in environmental information in the heating furnace and changes in the thickness of the copper rod in real time, resulting in uneven heating, thereby affecting the quality and performance of the copper rod. Summary of the invention

[0005] In view of this, the present invention proposes a temperature control system and method for producing oxygen-free copper rods based on the up-drawing method, aiming to solve the problem that the traditional temperature control method in the current technology cannot respond to the environmental information differences in the heating furnace and the thickness changes of the copper rod in real time, resulting in uneven heating, thereby affecting the quality and performance of the copper rod.

[0006] The present invention proposes a temperature control method for producing oxygen-free copper rods based on an up-drawing method, comprising: Obtain the temperature information of the heating furnace, the thickness and melting information of the copper rod, and the gas information of the heating furnace, wherein the temperature information includes the temperature distribution and real-time heating temperature of the heating furnace, and the gas information includes the concentration ratio of oxygen and protective atmosphere in the heating furnace; Divide the heating furnace into zones according to temperature analysis, obtain the real-time temperature of each zone after division, and determine the temperature gradient inside the heating furnace according to the real-time temperature of each zone; Determine the initial heating temperature of the heating furnace according to the thickness and melting information of the copper rod; Obtaining the pulling speed of the copper rod and the preset thickness of the copper rod after pulling; Determine the temperature distribution gradient of the copper rod according to the melting information, and determine the adjustment coefficient according to the temperature distribution gradient of the copper rod, the drawing speed, the preset thickness of the copper rod after drawing, the temperature gradient inside the heating furnace, and the gas information, and adjust the initial heating temperature according to the adjustment coefficient.

[0007] Further, when determining the initial heating temperature of the heating furnace according to the thickness and melting information of the copper rod, it includes: Obtain the melting point and liquidus line of the copper rod, as well as the outer temperature and the temperature at the center point of the copper rod, and determine the preset heating temperature according to the thickness, melting point and liquidus line of the copper rod, and the outer temperature and the temperature at the center point of the copper rod: ; where, T set is the preset heating temperature, T m is the melting point of the copper rod, T L is the liquidus line of the copper rod, d is the thickness of the copper rod, T outside is the outer temperature of the copper rod, T core is the temperature at the center point of the copper rod, α and β are weight coefficients, and both α and β are not 0; Obtain the heating rate of the heating furnace, and determine the initial heating temperature of the heating furnace according to the relationship between the heating rate and the preset heating temperature: ; where, T initial is the initial heating temperature of the heating furnace, is the heating rate, and K1 is the relationship coefficient between the heat conduction and the power of the heating furnace.

[0008] Further, when determining the adjustment coefficient according to the temperature distribution gradient of the copper rod, the drawing speed, the preset thickness of the copper rod after drawing, the temperature gradient inside the heating furnace, and the gas information, it includes: ; where, G is the adjustment coefficient, ▽Y is the temperature distribution gradient of the copper rod, ▽R is the temperature gradient inside the heating furnace, J is the preset thickness of the copper rod after drawing, V is the drawing speed, and △H is the temperature compensation amount between the temperature distribution gradient of the copper rod and the temperature gradient inside the heating furnace.

[0009] Further, when determining that the adjustment coefficient is G, it includes: Obtain the concentration ratio of oxygen and protective atmosphere in the heating furnace, and determine whether to correct the adjustment coefficient G according to the relationship between the concentration ratio and the preset concentration ratio: When the concentration ratio is lower than or equal to the preset concentration ratio, it is determined that the adjustment coefficient G is not corrected; When the concentration ratio is higher than the preset concentration ratio, it is determined that the adjustment coefficient G needs to be corrected. According to the ratio difference between the concentration ratio and the preset concentration ratio, a correction coefficient is determined, and the adjustment coefficient G is corrected based on the correction coefficient.

[0010] Further, when determining the correction coefficient according to the ratio difference between the concentration ratio and the preset concentration ratio, it includes: Determine the correction coefficient according to the relationship between the ratio difference and the configured first preset ratio difference and second preset ratio difference: When the ratio difference is less than the first preset ratio difference, it is determined that the correction coefficient is A3; When the ratio difference is greater than or equal to the first preset ratio difference and less than the second preset ratio difference, it is determined that the correction coefficient is A2; When the ratio difference is greater than or equal to the second preset ratio difference, it is determined that the correction coefficient is A1; Wherein, the first preset ratio difference is less than the second preset ratio difference, and 0.8 < A1 < A2 < A3 < 1.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: By comprehensively collecting the temperature information of the heating furnace, the thickness and melting information of the copper rod, and the gas information in the heating furnace, precise control of the heating process is achieved. Traditional temperature control methods often rely on experience to set the heating temperature and cannot consider the temperature differences in different regions of the heating furnace and the influence of the copper rod thickness change on the heating effect. However, this method can accurately identify the temperature changes in each region of the heating furnace by real-time monitoring of the temperature distribution in the heating furnace, combined with the thickness and melting state of the copper rod, and make timely adjustments, thus avoiding problems such as uneven heating or temperature out of control. In addition, by dividing the heating furnace into regions and collecting the temperature data of each region in real time, more detailed temperature gradient information can be obtained. By calculating the temperature gradient, combined with the temperature distribution gradient of the copper rod, the traction speed, and the preset thickness of the copper rod, the setting of the initial heating temperature is further optimized. The temperature distribution gradient of the copper rod can reflect the temperature difference from the outer side to the center point of the copper rod, and accurately understanding this is crucial for controlling the heating temperature of the heating furnace. By reasonably adjusting the initial heating temperature of the heating furnace, the uniformity of the copper rod heating process can be ensured, thereby reducing the risk of thermal stress and thermal cracks and improving the quality of the copper rod. Finally, by considering the influence of the gas composition in the heating furnace on temperature control, especially the concentration ratio of oxygen concentration and protective atmosphere. The gas composition has a significant impact on the oxidation reaction during the heating process and the change of the copper rod surface temperature. Especially under high-temperature conditions, the oxygen concentration may cause the oxidation of copper, thus affecting the physical properties of the copper rod. Therefore, real-time monitoring and adjusting the temperature according to the gas concentration can effectively reduce the oxidation risk and ensure the surface quality and internal structure uniformity of the copper rod.

[0012] On the other hand, the present application also provides a temperature control system for producing oxygen-free copper rods based on the up-drawing method, including: A collection module, configured to obtain the temperature information of the heating furnace, the thickness and melting information of the copper rod, and the gas information of the heating furnace. Among them, the temperature information includes the temperature distribution and real-time heating temperature of the heating furnace, and the gas information includes the concentration ratios of oxygen and protective atmosphere in the heating furnace; An analysis module, electrically connected to the collection module. The analysis module is configured to divide the area inside the heating furnace according to temperature analysis, obtain the real-time temperature of each area after division, and determine the temperature gradient inside the heating furnace according to the real-time temperature of each area; the analysis module is also configured to determine the initial heating temperature of the heating furnace according to the thickness and melting information of the copper rod; An acquisition module, configured to obtain the traction speed of the copper rod and the preset thickness of the copper rod after traction; A central control module, electrically connected to the analysis module and the acquisition module respectively. The central control module is configured to determine the temperature distribution gradient of the copper rod according to the melting information, determine an adjustment coefficient according to the temperature distribution gradient of the copper rod, the traction speed, the preset thickness of the copper rod after traction, the temperature gradient inside the heating furnace, and the gas information, and adjust the initial heating temperature according to the adjustment coefficient.

[0013] Further, when the analysis module determines the initial heating temperature of the heating furnace according to the thickness and melting information of the copper rod, it includes: The analysis module is also configured to obtain the melting point and liquidus line of the copper rod, as well as the outer temperature and axial center point temperature of the copper rod, and determine a preset heating temperature according to the thickness, melting point and liquidus line of the copper rod, and the outer temperature and axial center point temperature of the copper rod: ; Among them, T set is the preset heating temperature, T m is the melting point of the copper rod, T L is the liquidus line of the copper rod, d is the thickness of the copper rod, T outside is the outer temperature of the copper rod, T core is the axial center point temperature of the copper rod, α and β are weight coefficients, and both α and β are not 0; The analysis module is also configured to obtain the heating rate of the heating furnace, and determine the initial heating temperature of the heating furnace according to the relationship between the heating rate and the preset heating temperature: ; Among them, T initial is the initial heating temperature of the heating furnace, is the heating rate, and K1 is the relationship coefficient between the heat conduction and power of the heating furnace.

[0014] Further, when the central control module determines the adjustment coefficient according to the temperature distribution gradient of the copper rod, the traction speed, the preset thickness of the copper rod after traction, the temperature gradient inside the heating furnace, and the gas information, it includes: ; Wherein, G is the adjustment coefficient, ▽Y is the temperature distribution gradient of the copper rod, ▽R is the temperature gradient inside the heating furnace, J is the preset thickness of the copper rod after traction, V is the traction speed, and △H is the temperature compensation amount between the temperature distribution gradient of the copper rod and the temperature gradient inside the heating furnace.

[0015] Further, when the central control module determines that the adjustment coefficient is G, it includes: The central control module is further configured to obtain the concentration ratio of oxygen to the protective atmosphere in the heating furnace, and determine whether to correct the adjustment coefficient G according to the relationship between the concentration ratio and the preset concentration ratio: When the concentration ratio is lower than or equal to the preset concentration ratio, the central control module determines not to correct the adjustment coefficient G; When the concentration ratio is higher than the preset concentration ratio, the central control module determines to correct the adjustment coefficient G, and determines the correction coefficient according to the ratio difference between the concentration ratio and the preset concentration ratio, and corrects the adjustment coefficient G according to the correction coefficient.

[0016] Further, when the central control module determines the correction coefficient according to the ratio difference between the concentration ratio and the preset concentration ratio, it includes: The central control module is further configured to determine the correction coefficient according to the relationship between the ratio difference and the configured first preset ratio difference and second preset ratio difference: When the ratio difference is less than the first preset ratio difference, the central control module determines that the correction coefficient is A3; When the ratio difference is greater than or equal to the first preset ratio difference and less than the second preset ratio difference, the central control module determines that the correction coefficient is A2; When the ratio difference is greater than or equal to the second preset ratio difference, the central control module determines that the correction coefficient is A1; Wherein, the first preset ratio difference is less than the second preset ratio difference, and 0.8 < A1 < A2 < A3 < 1.

[0017] It can be understood that the temperature control system and method for producing oxygen-free copper rods based on the up-drawing method in the above embodiments of the present invention have the same beneficial effects and will not be elaborated here. Description of the Drawings

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Also, throughout the drawings, the same reference numerals are used to denote the same components. In the drawings: Figure 1 It is a flowchart of a temperature control method for producing oxygen-free copper rods based on the up-drawing method provided by an embodiment of the present invention; Figure 2 It is a functional block diagram of a temperature control system for producing oxygen-free copper rods based on the up-drawing method provided by an embodiment of the present invention. Specific embodiments

[0019] Hereinafter, the exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0020] As Figure 1 shown, in some embodiments of the present application, this embodiment provides a temperature control method for producing oxygen-free copper rods based on the up-drawing method, including: Step S100, obtaining the temperature information of the heating furnace, the thickness and melting information of the copper rod, and the gas information of the heating furnace.

[0021] Specifically, the temperature information includes the temperature distribution and real-time heating temperature of the heating furnace, the gas information includes the concentration ratios of oxygen and protective atmosphere in the heating furnace, and the melting information of the copper rod includes the melting point and liquidus of the copper rod, as well as the outer temperature and the central point temperature of the copper rod.

[0022] It is understandable that obtaining the temperature information of the heating furnace, including the temperature distribution inside the furnace and the real-time heating temperature, can comprehensively understand the temperature conditions in different areas of the heating furnace. Due to the possible non-uniformity of the temperature inside the heating furnace, through the real-time temperature data, the temperature changes in each area can be accurately evaluated, providing a basis for subsequent temperature adjustment. This process ensures that the temperature changes in each area inside the heating furnace can be captured in a timely manner, so as to make adjustments according to the actual situation and prevent local overheating or overcooling. Secondly, the monitoring of gas components is crucial for the control of the heating process. Especially in the production of oxygen-free copper rods, the concentration ratios of oxygen and protective atmosphere directly affect the heating quality and surface state of the copper rods. Too high oxygen concentration may cause oxidation on the surface of the copper rods, affecting their electrical conductivity and mechanical properties. Therefore, real-time monitoring of the concentrations of oxygen and protective atmosphere in the heating furnace and dynamically adjusting the heating temperature based on this information are important steps to achieve efficient and high-quality production. Finally, the melting information of the copper rod includes the melting point, liquidus line of the copper rod, as well as the outer temperature and the temperature at the center point of the copper rod. These information are crucial for controlling the heating temperature and ensuring the temperature uniformity inside and outside the copper rod. The melting point and liquidus line of the copper rod determine the heating curve of the copper rod, while the temperatures at the outer side and the center point reflect the temperature distribution state of the copper rod. By combining this melting information, the heating process of the copper rod can be precisely controlled to ensure that when the copper rod passes through the heating furnace, the temperature difference between its inside and outside is as small as possible, thus avoiding defects caused by uneven heating or overheating and ensuring the overall quality of the copper rod.

[0023] Step S200: Divide the interior of the heating furnace according to the temperature analysis, obtain the real-time temperature of each area after division, and determine the temperature gradient inside the heating furnace according to the real-time temperature of each area.

[0024] Specifically, according to the temperature gradient between two adjacent areas, obtain the overall temperature gradient inside the heating furnace: ; where ∇T furnace is the overall temperature gradient inside the heating furnace, T i (t) and T i+1 (t) are the real-time temperatures of adjacent areas i and i + 1 at time t respectively. d i,i+1 is the distance between adjacent areas i and i + 1.

[0025] It is understandable that by dividing the heating furnace into regions, the interior of the heating furnace can be divided into multiple temperature intervals, which is convenient for more detailed monitoring of the temperature conditions in different regions. Since the temperature inside the heating furnace often shows an uneven distribution, the use of regional division can make the temperature control more precise, avoid overheating or uneven cooling in some regions during the heating process, thereby improving the heating efficiency and the quality stability of the copper rod. Secondly, by obtaining the real-time temperature data of each region, a more comprehensive understanding of the thermal state of each part inside the heating furnace can be achieved. This process helps to realize the real-time monitoring of the temperature inside the heating furnace and can promptly identify possible temperature anomalies in each region. By collecting and analyzing this data, data support can be provided for adjusting the operating parameters of the heating furnace. For example, if the temperature of a certain part is too high or too low, dynamic adjustment can be carried out by adjusting the temperature setting or atmosphere concentration of the heating furnace. Finally, it is a very crucial step to calculate the temperature gradient inside the heating furnace based on the real-time temperature of each region obtained. The temperature gradient reflects the temperature difference between different regions inside the heating furnace and can reveal the degree of unevenness of the temperature distribution. By accurately measuring the temperature gradient, a basis for subsequent temperature adjustment can be provided to ensure that the copper rod can be uniformly heated when passing through the heating furnace and avoid thermal stress, oxidation or other quality problems of the copper rod caused by an excessive temperature gradient.

[0026] Step S300: Determine the initial heating temperature of the heating furnace according to the thickness and melting information of the copper rod.

[0027] Specifically, when determining the initial heating temperature of the heating furnace according to the thickness and melting information of the copper rod, it includes: Obtain the melting point and liquidus line of the copper rod, as well as the outer temperature and the temperature at the center point of the copper rod, and determine the preset heating temperature according to the thickness, melting point and liquidus line of the copper rod, as well as the outer temperature and the temperature at the center point of the copper rod: .

[0028] Among them, T set is the preset heating temperature, T m is the melting point of the copper rod, T L is the liquidus line of the copper rod, d is the thickness of the copper rod, T outside is the outer temperature of the copper rod, T core is the temperature at the center point of the copper rod, and α and β are weighting coefficients, and both α and β are not 0.

[0029] Obtain the heating rate of the heating furnace and determine the initial heating temperature of the heating furnace according to the relationship between the heating rate and the preset heating temperature: .

[0030] Among them, T initial is the initial heating temperature of the heating furnace, is the heating rate, and K1 is the relationship coefficient between the heat conduction and power of the heating furnace.

[0031] It can be understood that the preset heating temperature is determined by the melting information, thickness, and temperature distribution of the copper rod. The melting point and liquidus line of the copper rod determine the temperature range at which the copper rod begins to melt during the heating process, while the outer temperature and the temperature at the center point of the copper rod reflect the actual heating state of the copper rod. Based on this information, a preset heating temperature Tset can be calculated, which takes into account the physical properties of the copper rod (such as thickness, melting point, liquidus line) and the temperature distribution (outer temperature and temperature at the center point). The weighting coefficients α and β are used to adjust the influence degree of each parameter on the heating temperature to ensure that the temperature setting can meet the heating requirements of the copper rod. Secondly, by obtaining the relationship between the heating rate of the heating furnace and the preset heating temperature, the initial heating temperature T of the heating furnace can be further optimized. initial . The heating rate determines the heating-up speed during the heating process. An overly fast or slow heating rate will affect the melting uniformity and final quality of the copper rod. According to the relationship between the heating rate and the preset heating temperature, combined with the coefficient K1 between the heat conduction and power of the heating furnace, an appropriate initial heating temperature can be deduced to avoid temperature fluctuations or uneven heating caused by too high or too low heating rates. Finally, the determination of the initial heating temperature is the key to optimizing the heating process. By comprehensively considering the physical properties of the copper rod, the heating rate, and the heat transfer efficiency of the heating furnace, an appropriate initial heating temperature can be calculated. This temperature can not only ensure a uniform temperature distribution of the copper rod during melting and heating but also make full use of the heating rate and power characteristics of the heating furnace to achieve precise adjustment of temperature control.

[0032] It can be seen that by comprehensively considering the melting point, liquidus line, thickness, and temperature distribution of the copper rod, the preset heating temperature can be accurately determined. This can avoid uneven heating caused by temperature differences in different parts of the copper rod during the heating process. In particular, the temperature on the outer side and the central point temperature of the copper rod have an important impact on the final heating effect. A reasonable preset heating temperature ensures a more uniform temperature distribution from the outside to the inside of the copper rod, improves the heat treatment quality of the copper rod, and thus enhances its mechanical properties and electrical conductivity. Secondly, by introducing the relationship between the heating rate and the preset heating temperature, the initial heating temperature of the heating furnace can be dynamically adjusted. This adjustment mechanism can compensate for the heating temperature according to the actual heating rate, avoiding too high or too low initial heating temperatures, and thereby improving the stability of the heating process. By optimizing the matching of the heating rate and the initial heating temperature, surface defects or internal stresses of the copper rod caused by improper heating processes are reduced, ensuring the consistency and high quality of the copper rod during the heating process. Finally, by using the relationship coefficient K1 between the heat conduction and power of the heating furnace, the initial heating temperature of the heating furnace can be set more accurately. This mechanism enables the heating furnace to utilize thermal energy more efficiently under different operating conditions, improves the heating efficiency, reduces energy waste, and at the same time avoids overheating or uneven temperature phenomena, thereby reducing production costs and increasing production efficiency.

[0033] Step S400: Obtain the traction speed of the copper rod and the preset thickness of the copper rod after traction.

[0034] Step S500: Determine the temperature distribution gradient of the copper rod according to the melting information. Determine the adjustment coefficient according to the temperature distribution gradient of the copper rod, the traction speed, the preset thickness of the copper rod after traction, the temperature gradient inside the heating furnace, and the gas information, and adjust the initial heating temperature according to the adjustment coefficient.

[0035] Specifically, when determining the adjustment coefficient according to the temperature distribution gradient of the copper rod, the traction speed, the preset thickness of the copper rod after traction, the temperature gradient inside the heating furnace, and the gas information, it includes: 。

[0036] Where G is the adjustment coefficient, ▽Y is the temperature distribution gradient of the copper rod, ▽R is the temperature gradient inside the heating furnace, J is the preset thickness of the copper rod after traction, V is the traction speed, and △H is the temperature compensation amount between the temperature distribution gradient of the copper rod and the temperature gradient inside the heating furnace.

[0037] Specifically, when the adjustment coefficient is determined to be G, it includes: obtaining the concentration ratio of oxygen to protective atmosphere in the heating furnace, and determining whether to correct the adjustment coefficient G according to the relationship between the concentration ratio and the preset concentration ratio: when the concentration ratio is lower than or equal to the preset concentration ratio, it is determined not to correct the adjustment coefficient G. When the concentration ratio is higher than the preset concentration ratio, it is determined to correct the adjustment coefficient G, and the correction coefficient is determined according to the ratio difference between the concentration ratio and the preset concentration ratio, and the adjustment coefficient G is corrected according to the correction coefficient.

[0038] Specifically, when determining the correction coefficient according to the ratio difference between the concentration ratio and the preset concentration ratio, it includes: determining the correction coefficient according to the relationship between the ratio difference and the configured first preset ratio difference and second preset ratio difference: when the ratio difference is less than the first preset ratio difference, it is determined that the correction coefficient is A3. When the ratio difference is greater than or equal to the first preset ratio difference and less than the second preset ratio difference, it is determined that the correction coefficient is A2. When the ratio difference is greater than or equal to the second preset ratio difference, it is determined that the correction coefficient is A1. Among them, the first preset ratio difference is less than the second preset ratio difference, and 0.8 < A1 < A2 < A3 < 1.

[0039] It is understandable that based on the relationship between the temperature distribution gradient of the copper rod and the temperature gradient inside the heating furnace. The temperature distribution gradient of the copper rod reflects the temperature difference of the copper rod from the outer side to the axis point, while the temperature gradient inside the heating furnace reveals the temperature difference in different areas of the furnace. By comparing these two gradients, an adjustment coefficient G can be determined, which is used to correct the initial heating temperature to ensure a more uniform heating process of the copper rod and avoid quality problems caused by excessive or too low temperature. Factors such as the traction speed and the preset thickness of the copper rod after traction also participate in this process to ensure that the adjustment coefficient reflects the heating requirements in actual production. Secondly, when determining the adjustment coefficient G, in addition to the temperature gradient, the gas information in the heating furnace needs to be considered, especially the concentrations of oxygen and the protective atmosphere. The oxygen concentration has an important impact on the heating and oxidation reaction of the copper rod, so it is necessary to monitor the concentration ratio of oxygen concentration to the protective atmosphere in real time. This information helps to judge the oxidation risk during the heating process. If the oxygen concentration is too high, it may cause the surface oxidation of the copper rod, thus affecting the electrical conductivity and mechanical properties of the copper rod. By comparing the concentration ratios, the adjustment coefficient can be further adjusted to ensure that the heating temperature and oxidation condition of the copper rod are properly controlled. Thirdly, when there is a difference between the oxygen concentration in the heating furnace and the preset concentration ratio, the adjustment coefficient G needs to be corrected. If the oxygen concentration is higher than the preset concentration ratio, it indicates that the oxidation condition in the furnace is stronger, and it may be necessary to adjust the heating temperature through the correction coefficient to reduce the occurrence of oxidation reactions. The correction coefficient is determined based on the difference between the oxygen concentration ratio and the preset concentration ratio to ensure that the temperature control can adapt to the changes in the oxidation environment and further improve the accuracy of the heating process. Fourthly, the specific calculation of the correction coefficient is based on the relationship between the concentration difference and the preset ratio difference. Different correction coefficients can be selected according to the different magnitudes of the concentration differences. These coefficients are adjusted in stages to ensure that the influence of oxygen concentration on temperature adjustment is effectively controlled and avoid temperature imbalance or instability caused by excessive correction. Different correction coefficients correspond to different ranges of oxygen concentration differences, so that fine adjustments can be made when the oxygen concentration changes slightly, and large adjustments can be made when the oxygen concentration difference is large. Finally, through this adjustment process, the initial heating temperature can be dynamically corrected according to the actual situation (including factors such as temperature gradient, traction speed, copper rod thickness, gas concentration, etc.). This method ensures the uniformity and stability of the heating process, enabling the copper rod to obtain the most suitable temperature throughout the production process, thereby guaranteeing its quality and performance. By comprehensively considering all these factors, this method significantly improves the controllability and accuracy of the copper rod heating process, effectively reduces the defect rate in production, and improves the production efficiency and quality of the product.

[0040] In the above embodiments, by comprehensively collecting the temperature information of the heating furnace, the thickness and melting information of the copper rod, and the gas information in the heating furnace, precise control of the heating process is achieved. Traditional temperature control methods often rely on experience to set the heating temperature and cannot consider the temperature differences in different regions of the heating furnace and the influence of the copper rod thickness change on the heating effect. However, this method can accurately identify the temperature changes in each region of the heating furnace by real-time monitoring the temperature distribution in the heating furnace and combining the thickness and melting state of the copper rod, and make timely adjustments, thus avoiding problems such as uneven heating or temperature out of control. In addition, by dividing the heating furnace into regions and collecting the temperature data of each region in real time, more detailed temperature gradient information can be obtained. By calculating the temperature gradient, combining the temperature distribution gradient of the copper rod, the drawing speed, and the preset thickness of the copper rod, the setting of the initial heating temperature is further optimized. The temperature distribution gradient of the copper rod can reflect the temperature difference from the outer side to the center point of the copper rod, and accurately understanding this is crucial for controlling the heating temperature of the heating furnace. By reasonably adjusting the initial heating temperature of the heating furnace, the uniformity of the copper rod heating process can be ensured, thereby reducing the risk of thermal stress and thermal cracks and improving the quality of the copper rod. Finally, the influence of the gas composition in the heating furnace on temperature control is considered, especially the oxygen concentration and the concentration ratio of the protective atmosphere. The gas composition has a significant impact on the oxidation reaction during the heating process and the change of the copper rod surface temperature. Especially under high-temperature conditions, the oxygen concentration may cause the oxidation of copper, thus affecting the physical properties of the copper rod. Therefore, real-time monitoring and adjusting the temperature according to the gas concentration can effectively reduce the oxidation risk and ensure the surface quality and internal structure uniformity of the copper rod.

[0041] In another preferred embodiment based on the above embodiments, as Figure 2 shown, this embodiment provides a temperature control system for producing oxygen-free copper rods based on the up-drawing method, including: a collection module, an analysis module, an acquisition module, and a central control module.

[0042] Specifically, the acquisition module is configured to obtain the temperature information of the heating furnace, the thickness and melting information of the copper rod, and the gas information of the heating furnace. Among them, the temperature information includes the temperature distribution and real-time heating temperature of the heating furnace, and the gas information includes the concentration ratios of oxygen and protective atmosphere in the heating furnace. The analysis module is electrically connected to the acquisition module. The analysis module is configured to divide the interior of the heating furnace into regions based on temperature analysis, obtain the real-time temperature of each region after division, and determine the temperature gradient inside the heating furnace according to the real-time temperature of each region. The analysis module is also configured to determine the initial heating temperature of the heating furnace based on the thickness and melting information of the copper rod. The acquisition module is configured to obtain the traction speed of the copper rod and the preset thickness of the copper rod after traction. The central control module is electrically connected to the analysis module and the acquisition module respectively. The central control module is configured to determine the temperature distribution gradient of the copper rod according to the melting information, and determine an adjustment coefficient according to the temperature distribution gradient of the copper rod, the traction speed, the preset thickness of the copper rod after traction, the temperature gradient inside the heating furnace, and the gas information, and adjust the initial heating temperature according to the adjustment coefficient.

[0043] Specifically, when the analysis module determines the initial heating temperature of the heating furnace based on the thickness and melting information of the copper rod, it includes: The analysis module is also configured to obtain the melting point and liquidus line of the copper rod, as well as the outer temperature and axial center point temperature of the copper rod, and determine a preset heating temperature according to the thickness, melting point and liquidus line of the copper rod, and the outer temperature and axial center point temperature of the copper rod: .

[0044] Where, T set is the preset heating temperature, T m is the melting point of the copper rod, T L is the liquidus line of the copper rod, d is the thickness of the copper rod, T outside is the outer temperature of the copper rod, T core is the axial center point temperature of the copper rod, α and β are weight coefficients, and both α and β are 0.

[0045] The analysis module is also configured to obtain the heating rate of the heating furnace, and determine the initial heating temperature of the heating furnace according to the relationship between the heating rate and the preset heating temperature: .

[0046] Where, T initial is the initial heating temperature of the heating furnace, is the heating rate, and K1 is the relationship coefficient between the heat conduction and power of the heating furnace.

[0047] Specifically, when the central control module determines the adjustment coefficient according to the temperature distribution gradient of the copper rod, the traction speed, the preset thickness of the copper rod after traction, the temperature gradient inside the heating furnace, and the gas information, it includes: .

[0048] Among them, G is an adjustment coefficient, ▽Y is the temperature distribution gradient of the copper rod, ▽R is the temperature gradient inside the heating furnace, J is the preset thickness of the copper rod after traction, V is the traction speed, and △H is the temperature compensation amount between the temperature distribution gradient of the copper rod and the temperature gradient inside the heating furnace.

[0049] Specifically, when the central control module determines that the adjustment coefficient is G, it includes: The central control module is further configured to obtain the concentration ratio of oxygen to protective atmosphere in the heating furnace, and determine whether to correct the adjustment coefficient G according to the relationship between the concentration ratio and the preset concentration ratio: When the concentration ratio is lower than or equal to the preset concentration ratio, the central control module determines not to correct the adjustment coefficient G.

[0050] When the concentration ratio is higher than the preset concentration ratio, the central control module determines to correct the adjustment coefficient G, and determines a correction coefficient according to the ratio difference between the concentration ratio and the preset concentration ratio, and corrects the adjustment coefficient G according to the correction coefficient.

[0051] Specifically, when the central control module determines the correction coefficient according to the ratio difference between the concentration ratio and the preset concentration ratio, it includes: The central control module is further configured to determine the correction coefficient according to the relationship between the ratio difference and the configured first preset ratio difference and second preset ratio difference: When the ratio difference is less than the first preset ratio difference, the central control module determines that the correction coefficient is A3.

[0052] When the ratio difference is greater than or equal to the first preset ratio difference and less than the second preset ratio difference, the central control module determines that the correction coefficient is A2.

[0053] When the ratio difference is greater than or equal to the second preset ratio difference, the central control module determines that the correction coefficient is A1.

[0054] Among them, the first preset ratio difference is less than the second preset ratio difference, and 0.8 < A1 < A2 < A3 < 1.

[0055] It can be understood that the temperature control system and method for producing oxygen-free copper rod based on the up-drawing method in the above embodiments of the present invention have the same beneficial effects and will not be elaborated herein.

[0056] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0057] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of flows and / or blocks in the flowchart and / or block diagram can also be implemented. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in one Figure 1 one flow or multiple flows and / or blocks Figure 1 a block or multiple blocks.

[0058] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in one Figure 1 one flow or multiple flows and / or blocks Figure 1 a block or multiple blocks.

[0059] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one Figure 1 one flow or multiple flows and / or blocks Figure 1 a block or multiple blocks.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the specific implementation manners of the present invention can still be modified or equivalently replaced, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the protection scope of the claims of the present invention.

Claims

1. A temperature control method for producing oxygen-free copper rods based on the up-drawing method, characterized in that: include: Obtain the temperature information of the heating furnace, the thickness and melting information of the copper rod, and the gas information of the heating furnace, wherein the temperature information includes the temperature distribution and real-time heating temperature of the heating furnace, and the gas information includes the concentration ratio of oxygen and protective atmosphere in the heating furnace; Divide the heating furnace into zones according to temperature analysis, obtain the real-time temperature of each zone after division, and determine the temperature gradient inside the heating furnace according to the real-time temperature of each zone; Determine the initial heating temperature of the heating furnace according to the thickness and melting information of the copper rod; Obtaining the pulling speed of the copper rod and the preset thickness of the copper rod after pulling; According to the melting information, the temperature distribution gradient of the copper rod is determined. According to the temperature distribution gradient of the copper rod, the pulling speed, the preset thickness of the copper rod after pulling, the temperature gradient inside the heating furnace and the gas information, the adjustment coefficient is determined, and the initial heating temperature is adjusted according to the adjustment coefficient.

2. The temperature control method for producing oxygen-free copper rod based on the up-drawing method according to claim 1, characterized in that: According to the thickness and melting information of the copper rod, the initial heating temperature of the heating furnace is determined, including: Obtain the melting point and liquidus of the copper rod, as well as the outer temperature and the axis temperature of the copper rod, and determine the preset heating temperature according to the thickness, melting point and liquidus of the copper rod, as well as the outer temperature and the axis temperature of the copper rod: ； Among them, T set is the preset heating temperature, T m is the melting point of the copper rod, T L is the copper rod liquidus, d is the copper rod thickness, T outside is the outside temperature of the copper rod, T core is the temperature of the copper rod axis, α and β are weight coefficients, and α and β are uniformly distributed to 0; Get the heating rate of the heating furnace, and determine the initial heating temperature of the heating furnace based on the relationship between the heating rate and the preset heating temperature: ； Among them, T initial is the initial heating temperature of the heating furnace, is the heating rate, K1 is the relationship coefficient between the heat conduction and power of the heating furnace.

3. The temperature control method for producing oxygen-free copper rod based on the up-drawing method according to claim 1, characterized in that: According to the temperature distribution gradient of the copper rod, the pulling speed, the preset thickness of the copper rod after pulling, the temperature gradient inside the heating furnace and the gas information, the adjustment coefficient is determined, including: ； Among them, G is the adjustment coefficient, ▽Y is the temperature distribution gradient of the copper rod, ▽R is the temperature gradient inside the heating furnace, J is the preset thickness of the copper rod after pulling, V is the pulling speed, and △H is the temperature compensation between the temperature distribution gradient of the copper rod and the temperature gradient inside the heating furnace.

4. The temperature control method for producing oxygen-free copper rod based on the up-drawing method according to claim 3, characterized in that: When determining the adjustment factor G, it includes: Obtain the concentration ratio of oxygen and protective atmosphere in the heating furnace, and determine whether to correct the adjustment coefficient G based on the relationship between the concentration ratio and the preset concentration ratio: When the concentration ratio is lower than or equal to the preset concentration ratio, it is determined that the adjustment coefficient G is not corrected; When the concentration ratio is higher than the preset concentration ratio, it is determined to correct the adjustment coefficient G, and according to the difference between the concentration ratio and the preset concentration ratio, the correction coefficient is determined, and the adjustment coefficient G is corrected according to the correction coefficient.

5. The temperature control method for producing oxygen-free copper rod based on the up-drawing method according to claim 4, characterized in that: When determining the correction factor based on the difference between the concentration ratio and the preset concentration ratio, it includes: The correction coefficient is determined according to the relationship between the ratio difference and the configured first preset ratio difference and the second preset ratio difference: When the proportion difference is less than the first preset proportion difference, the correction coefficient is determined to be A3; When the proportion difference is greater than or equal to the first preset proportion difference, and the proportion difference is less than the second preset proportion difference, the correction coefficient is determined to be A2; When the proportion difference is greater than or equal to the second preset proportion difference, the correction coefficient is determined to be A1; The first preset proportion difference is smaller than the second preset proportion difference, and 0.8<A1<A2<A3<1.

6. A temperature control system for producing oxygen-free copper rods based on the up-drawing method, applicable to a temperature control method for producing oxygen-free copper rods based on the up-drawing method as claimed in any one of claims 1 to 5, characterized in that: include: The acquisition module is configured to obtain the temperature information of the heating furnace, the thickness and melting information of the copper rod, and the gas information of the heating furnace, wherein the temperature information includes the temperature distribution and real-time heating temperature of the heating furnace, and the gas information includes the concentration ratio of oxygen and protective atmosphere in the heating furnace; The analysis module is electrically connected to the acquisition module, and the analysis module is configured to divide the interior of the heating furnace into regions according to the temperature analysis, obtain the real-time temperature of each region after the division, and determine the temperature gradient inside the heating furnace according to the real-time temperature of each region; the analysis module is also configured to determine the initial heating temperature of the heating furnace according to the thickness and melting information of the copper rod; An acquisition module is configured to acquire a pulling speed of the copper rod and a preset thickness of the copper rod after pulling; The central control module is electrically connected to the analysis module and the acquisition module respectively. The central control module is configured to determine the temperature distribution gradient of the copper rod according to the melting information, determine the adjustment coefficient according to the temperature distribution gradient of the copper rod, the pulling speed, the preset thickness of the copper rod after pulling, the temperature gradient inside the heating furnace and the gas information, and adjust the initial heating temperature according to the adjustment coefficient.

7. The temperature control system for producing oxygen-free copper rods based on the up-drawing method according to claim 6, characterized in that: The analysis module determines the initial heating temperature of the heating furnace based on the thickness and melting information of the copper rod, including: The analysis module is further configured to obtain the melting point and liquidus of the copper rod, as well as the outer temperature and the axis temperature of the copper rod, and determine the preset heating temperature according to the thickness, melting point and liquidus of the copper rod, as well as the outer temperature and the axis temperature of the copper rod: ； Among them, T set is the preset heating temperature, T m is the melting point of the copper rod, T L is the copper rod liquidus, d is the copper rod thickness, T outside is the outside temperature of the copper rod, T core is the temperature of the copper rod axis, α and β are weight coefficients, and α and β are uniformly distributed to 0; The analysis module is further configured to obtain a heating rate of the heating furnace, and determine an initial heating temperature of the heating furnace according to a relationship between the heating rate and a preset heating temperature: ； Among them, T initial is the initial heating temperature of the heating furnace, is the heating rate, K1 is the relationship coefficient between the heat conduction and power of the heating furnace.

8. The temperature control system for producing oxygen-free copper rods based on the up-drawing method according to claim 6, characterized in that: The central control module determines the adjustment coefficient based on the temperature distribution gradient of the copper rod, the pulling speed, the preset thickness of the copper rod after pulling, the temperature gradient inside the heating furnace and the gas information, including: ； Among them, G is the adjustment coefficient, ▽Y is the temperature distribution gradient of the copper rod, ▽R is the temperature gradient inside the heating furnace, J is the preset thickness of the copper rod after pulling, V is the pulling speed, and △H is the temperature compensation between the temperature distribution gradient of the copper rod and the temperature gradient inside the heating furnace.

9. The temperature control system for producing oxygen-free copper rods based on the up-drawing method according to claim 8, characterized in that: When the central control module determines that the adjustment coefficient is G, it includes: The central control module is also configured to obtain the concentration ratio of oxygen to protective atmosphere in the heating furnace, and determine whether to correct the adjustment coefficient G according to the relationship between the concentration ratio and the preset concentration ratio: When the concentration ratio is lower than or equal to the preset concentration ratio, the central control module determines not to correct the adjustment coefficient G; When the concentration ratio is higher than the preset concentration ratio, the central control module determines to correct the adjustment coefficient G, and determines the correction coefficient according to the difference between the concentration ratio and the preset concentration ratio, and corrects the adjustment coefficient G according to the correction coefficient.

10. The temperature control system for producing oxygen-free copper rods based on the up-drawing method according to claim 9, characterized in that: The central control module determines the correction coefficient based on the difference between the concentration ratio and the preset concentration ratio, including: The central control module is further configured to determine a correction coefficient according to a relationship between the proportion difference and a configured first preset proportion difference and a second preset proportion difference: When the proportion difference is less than the first preset proportion difference, the central control module determines the correction coefficient to be A3; When the proportion difference is greater than or equal to the first preset proportion difference, and the proportion difference is less than the second preset proportion difference, the central control module determines the correction coefficient to be A2; When the proportion difference is greater than or equal to the second preset proportion difference, the central control module determines the correction coefficient to be A1; The first preset proportion difference is smaller than the second preset proportion difference, and 0.8<A1<A2<A3<1.

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