A copper conductor wire continuous drawing and withdrawing process
By processing the temperature changes of copper conductor wires during the annealing process, the temperature change curve is constructed and compared, the annealing index is calculated, and the annealing status of copper conductor wires is evaluated in combination with the dryness data, the problem of the inability to identify the quality of copper conductor wires in the prior art is solved, and effective evaluation and quality identification of the annealing status of copper conductor wires is achieved.
Patent Information
- Application Number
- CN202411713495.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2044-11-27
AI Technical Summary
The prior art lacks the identification of the state of copper conductor wire after annealing, and the quality of copper conductor wire cannot be effectively identified.
By processing the temperature changes of the copper conductor wire during each annealing process, a real-time temperature change curve and standard temperature change curve are constructed to compare the annealing asynchronous area ratio and annealing asynchronous polar deviation ratio are obtained, data during multiple annealing processes are integrated, the annealing variance value, annealing mean ratio and annealing abnormality ratio are calculated, and combined with the dryness characterization value, the annealing dynamic value of the copper conductor wire is obtained to evaluate its annealing state.
The state evaluation and quality identification of the copper conductor wire during the entire annealing process is realized to ensure that the annealing process of the copper conductor wire reaches the expected state.
Smart Images

Figure CN119194316B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of wire processing, and in particular to a continuous drawing and withdrawing process for a copper conductor wire. Background Art
[0002] The copper conductors in wire and cable products, such as communication cables, plastic cables, high-voltage cables, electromagnetic wires, etc., almost all require the conductors to be soft wire cores in the annealed state. The most basic requirements for the conductors are bright surface, no oxidation, no burns, and uniform extension; some products require the conductors to have special softness.
[0003] There are many ways to anneal copper conductors, such as glow annealing, induction annealing and resistance contact annealing. The ultimate goal is to soften the copper body, increase elongation, enhance flexibility, and make the conductor reach the performance required by wire and cable products. The processing equipment for copper wire mainly includes giant drawing, large drawing, medium drawing, small drawing, fine drawing, micro drawing and profile processing machinery, among which large, medium and small wire drawing machines are basically equipped with continuous annealing devices. Continuous annealing is to insert the annealing device between the drawing device and the wire taking-up device of the wire drawing machine, so that the copper wire is annealed while passing.
[0004] At present, continuous high-speed annealing adopts contact resistance annealing, which is to pass the stretched hard copper wire through an energized contact wheel, so that the current passes directly through the wire, and the wire is heated by the resistance of the wire itself. After reaching the annealing temperature, it is quickly water-cooled to achieve the purpose of annealing. However, the existing technology lacks the recognition of the state of the copper conductor wire after annealing, and cannot effectively identify the quality of the copper conductor wire. Summary of the invention
[0005] The object of the present invention is to provide a continuous drawing and annealing process for a copper conductor wire. The temperature change of the copper conductor wire in each annealing process is processed, that is, a real-time temperature change curve constructed by a real-time annealing time and a real-time annealing temperature at the real-time annealing time is compared with a standard temperature change curve to obtain an annealing asynchronous area ratio and an annealing asynchronous extreme deviation ratio of the copper conductor wire in a single annealing process. An annealing asynchronous outlier is obtained based on the annealing asynchronous area ratio and the annealing asynchronous extreme deviation ratio. The annealing asynchronous outliers in multiple annealing processes of the copper conductor wire are integrated to obtain an annealing asynchronous outlier group. According to the annealing asynchronous outlier group, an annealing variance value, an annealing mean ratio and an annealing abnormal number ratio of the annealing asynchronous outlier group are obtained. Combined with the dryness characterization value of the copper conductor wire in each annealing process, an annealing characterization dynamic value of the copper conductor wire in the entire annealing process is obtained, thereby completing the state evaluation of the copper conductor wire in the entire annealing process to solve the above-mentioned background problems.
[0006] The purpose of the present invention can be achieved by the following technical solutions:
[0007] A copper conductor wire continuous drawing and withdrawing process, comprising the following steps:
[0008] The copper conductor is fed into a wire drawing machine for multiple stretching until the target diameter of the copper conductor wire is obtained;
[0009] Annealing the stretched copper conductor wire, obtaining annealing characterization data of the copper conductor wire during the annealing process, obtaining an annealing characterization dynamic value of the copper conductor wire based on the annealing characterization data, and identifying the annealing state of the copper conductor wire;
[0010] The annealing state of the copper conductor wire includes a normal annealing state signal and an abnormal annealing state signal;
[0011] The copper conductor wire in the normal annealing state is taken up after cooling, thus completing the continuous drawing and annealing process of the copper conductor.
[0012] As a further solution of the present invention: the annealing characterization data includes the real-time annealing time during each annealing process of the copper conductor wire and the real-time annealing temperature at the real-time annealing time;
[0013] During each annealing process of the copper conductor wire, a temperature recognition model is constructed using the real-time annealing time in the annealing characterization data and the real-time annealing temperature at the real-time annealing time;
[0014] A binary linear function is established based on the real-time annealing time and the real-time annealing temperature at the real-time annealing time, that is, the real-time annealing time is taken as the independent variable and the real-time annealing temperature is taken as the dependent variable to construct a real-time temperature change curve.
[0015] As a further solution of the present invention: comparing the real-time temperature change curve during each annealing process of the copper conductor wire with the standard temperature change curve;
[0016] If the real-time temperature change curve is below the standard temperature change curve, it means that the real-time annealing temperature needs to be increased under the current real-time annealing time so that the real-time temperature change curve is closer to the standard temperature change curve;
[0017] If the real-time temperature change curve is above the standard temperature change curve, it means that the real-time annealing temperature needs to be lowered under the current real-time annealing time so that the real-time temperature change curve is closer to the standard temperature change curve.
[0018] As a further solution of the present invention: processing the closed temperature-time graph formed by the real-time temperature change curve and the standard temperature change curve;
[0019] Calculate the area of the closed region of the closed temperature-time graph to obtain the annealing asynchronous area value;
[0020] Calculate the ratio of the annealing asynchronous area value to the annealing asynchronous area threshold to obtain the annealing asynchronous area ratio;
[0021] Obtain the maximum spacing value of the real-time temperature change curve and the standard temperature change curve in the closed temperature-time graph, calculate the ratio of the maximum spacing value to the standard spacing value, and obtain the annealing asynchronous extreme deviation ratio;
[0022] The annealing asynchronous area value ratio is recorded as Ts;
[0023] The annealing asynchronous pole deviation ratio is recorded as Tp;
[0024] That is, through the formula The annealing asynchronous outlier Ti is calculated, where k is a preset proportional coefficient.
[0025] As a further solution of the present invention: the process of obtaining the annealing characterization dynamic value of the copper conductor wire is:
[0026] The annealing asynchronous different values of the same copper conductor wire in multiple annealing processes are integrated to obtain an annealing asynchronous different value group;
[0027] According to the annealing asynchronous outlier group, the annealing variance value, annealing mean ratio and annealing anomaly number are obtained;
[0028] The annealing variance value is recorded as Ha;
[0029] The annealing mean ratio is denoted as Hp;
[0030] The annealing anomaly number is recorded as Hs;
[0031] By formula The annealing characterization dynamic value Hi of the copper conductor wire is calculated, where Fi is the dryness coefficient of the copper conductor wire before annealing, and a1 and a2 are preset proportional coefficients.
[0032] As a further solution of the present invention: the process of obtaining the annealing mean ratio is:
[0033] The annealing asynchronous outlier group is processed according to the average value calculation formula to obtain the annealing average value of the annealing asynchronous outlier group, and the annealing average value of the annealing asynchronous outlier group is calculated by ratio calculation with the annealing standard value of the annealing asynchronous outlier group to obtain the annealing mean ratio of the annealing asynchronous outlier group.
[0034] As a further solution of the present invention: the process of obtaining the annealing anomaly number is:
[0035] Compare the annealing asynchronous different value with the annealing asynchronous different value requirement range value, record the number of annealing times when the annealing asynchronous different value does not meet the annealing asynchronous different value requirement range value as the abnormal annealing number, and obtain the number of abnormal annealing times;
[0036] The abnormal annealing times are calculated by ratioing the number of abnormal annealing times to the total number of annealing times to obtain the abnormal annealing number ratio.
[0037] As a further solution of the present invention: the process of obtaining the annealing variance value is:
[0038] The annealing asynchronous outlier group is processed according to the variance calculation formula to obtain the annealing variance value of the annealing asynchronous outlier group.
[0039] As a further solution of the present invention: the process of obtaining the dryness coefficient of the copper conductor wire before annealing is:
[0040] Obtaining a dryness characterization value of the copper conductor wire before annealing each time;
[0041] Calculate the difference between the dryness characterization value of the copper conductor wire before annealing each time and the dryness characterization threshold of the copper conductor wire before annealing each time to obtain the dryness difference of the copper conductor wire;
[0042] Integrating the drying differences of the copper conductor wire during multiple annealing processes of the same copper conductor wire to obtain a drying difference behavior value group of the copper conductor wire;
[0043] The drying difference behavior value group is processed according to the variance calculation formula to obtain the drying variance value of the drying difference behavior value group, which is recorded as Fa;
[0044] Get the maximum value in the drying difference behavior value group and mark it as Fmax;
[0045] Get the minimum value in the drying difference behavior value group and mark it as Fmin;
[0046] The drying deviation ratio Fp of the drying difference behavior value group is calculated by the formula Fp=(Fmax-Fmin) / Fmax;
[0047] Then through the formula The dryness coefficient Fi of the copper conductor wire before annealing is obtained, wherein b1 and b2 are both preset proportional factors.
[0048] As a further solution of the present invention: the limit values of the annealing characterization dynamic value of the copper conductor wire are preset to Hi1 and Hi2, wherein Hi1<Hi2;
[0049] When Hi<Hi1 or Hi>Hi2, it indicates that the annealing state of the copper conductor wire is poor as a whole, and an abnormal annealing state signal is obtained;
[0050] When Hi1≤Hi≤Hi2, it indicates that the annealing state of the copper conductor wire is good as a whole, and a normal annealing state signal is obtained.
[0051] Beneficial effects of the present invention:
[0052] (1) The present invention processes the temperature change of the copper conductor wire in each annealing process, that is, by comparing the real-time annealing time and the real-time annealing temperature at the real-time annealing time to the standard temperature change curve, the annealing asynchronous area ratio and the annealing asynchronous extreme deviation ratio of the copper conductor wire in a single annealing process are obtained, and the annealing asynchronous outlier is obtained based on the annealing asynchronous area ratio and the annealing asynchronous extreme deviation ratio. The annealing asynchronous outliers in multiple annealing processes of the copper conductor wire are then integrated to obtain an annealing asynchronous outlier group. The annealing variance value, the annealing mean ratio and the annealing abnormal number ratio of the annealing asynchronous outlier group are obtained according to the annealing asynchronous outlier group. Combined with the dryness characterization value of the copper conductor wire in each annealing process, the annealing characterization dynamic value of the copper conductor wire in the entire annealing process is obtained, thereby completing the state evaluation of the copper conductor wire in the entire annealing process;
[0053] (2) The present invention performs grade identification based on the annealing variance value obtained from the annealing asynchronous outlier group, the annealing mean ratio of the annealing asynchronous outlier group, the annealing anomaly ratio, and the annealing characterization dynamic value obtained by processing the dryness coefficient of the copper conductor wire before annealing, thereby completing the state identification of the copper conductor wire during the annealing process and completing the quality identification of the copper conductor wire processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0054] The present invention will be further described below in conjunction with the accompanying drawings.
[0055] Figure 1 It is a schematic diagram of a process of continuous drawing and continuous evacuation of a copper conductor wire according to an embodiment of the present invention;
[0056] Figure 2 The present invention discloses a flow chart of annealing state identification in a continuous drawing and annealing process for a copper conductor wire according to an embodiment of the present invention. DETAILED DESCRIPTION
[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0058] Example 1
[0059] See also Figure 1 As shown, the present invention is a copper conductor wire continuous drawing and withdrawing process, comprising the following steps:
[0060] The copper conductor is fed into a wire drawing machine for multiple stretching until the target diameter of the copper conductor wire is obtained;
[0061] performing annealing treatment on the stretched copper conductor wire, obtaining annealing characterization data during the annealing treatment of the copper conductor wire, and identifying the annealing state of the copper conductor wire based on the annealing characterization data;
[0062] The annealing state of the copper conductor wire includes a normal annealing state signal and an abnormal annealing state signal;
[0063] The copper conductor wire in the normal annealing state is taken up after cooling, thus completing the continuous drawing and annealing process of the copper conductor.
[0064] The annealing characterization data includes the real-time annealing time during each annealing process of the copper conductor wire, the real-time annealing temperature at the real-time annealing time, and the dryness data of the copper conductor wire before each annealing;
[0065] Establish a standard temperature curve, specifically:
[0066] During the annealing process of the copper conductor wire, a standard annealing time and a standard annealing temperature under the standard annealing time are obtained;
[0067] The standard annealing time and the standard annealing temperature at the standard annealing time are obtained based on the experience of the staff, and in the annealing process of the copper conductor wire, the copper conductor wire obtained by annealing according to the standard annealing time and the standard annealing temperature at the standard annealing time has a better effect;
[0068] A temperature recognition model is established, and a binary linear function is established based on the standard annealing time and the standard annealing temperature, that is, the standard annealing time is used as an independent variable and the standard annealing temperature is used as a dependent variable. The temperature recognition model stores a standard temperature change curve for establishing an optimal path using the standard annealing temperature and the standard annealing time during the annealing process of the copper conductor wire;
[0069] Among them, the standard temperature change curve of the optimal path is obtained by simulating the annealing process of copper conductor wire in the laboratory.
[0070] Establish a real-time temperature curve, specifically:
[0071] During each annealing process of the copper conductor wire, a temperature recognition model is constructed using the real-time annealing time in the annealing characterization data and the real-time annealing temperature at the real-time annealing time;
[0072] A binary linear function is established based on the real-time annealing time and the real-time annealing temperature at the real-time annealing time, that is, the real-time annealing time is taken as the independent variable and the real-time annealing temperature is taken as the dependent variable to construct a real-time temperature change curve.
[0073] Compare the real-time temperature change curve during each copper conductor wire annealing process with the standard temperature change curve;
[0074] Overlap the real-time temperature change curve with the standard temperature change curve:
[0075] If the real-time temperature change curve is below the standard temperature change curve, it means that the real-time annealing temperature needs to be increased under the current real-time annealing time so that the real-time temperature change curve is closer to the standard temperature change curve;
[0076] The real-time annealing temperature is increased by increasing the current of the contact wheel, which is used to heat the copper conductor wire;
[0077] If the real-time temperature change curve is above the standard temperature change curve, it means that the real-time annealing temperature needs to be lowered under the current real-time annealing time so that the real-time temperature change curve is closer to the standard temperature change curve;
[0078] The real-time annealing temperature is reduced by reducing the current of the contact wheel used for heating the copper conductor wire;
[0079] After each copper conductor wire annealing is completed, a finish line perpendicular to the horizontal axis is drawn with the end point of the real-time annealing time as the starting point, and the upper end of the finish line passes through the first actual curve and the first verification curve;
[0080] The real-time temperature change curve, the standard temperature change curve, the end line and the vertical axis form a closed temperature-time graph;
[0081] The area of the closed region formed by the real-time temperature change curve and the standard temperature change curve in the closed temperature-time graph is calculated to obtain the annealing asynchronous area value;
[0082] The annealing asynchronous area value is calculated by ratio with the annealing asynchronous area threshold value obtained by the closed temperature-time graph to obtain the annealing asynchronous area ratio;
[0083] Among them, the annealing asynchronous area threshold obtained by closing the temperature-time graph is set by the staff based on experience.
[0084] Obtain the maximum spacing value of the real-time temperature change curve and the standard temperature change curve in the closed temperature-time graph, calculate the ratio of the maximum spacing value to the standard spacing value, and obtain the annealing asynchronous extreme deviation ratio;
[0085] Among them, the standard spacing value is set by the staff based on experience.
[0086] The annealing asynchronous area value and the annealing asynchronous pole deviation ratio of the copper conductor wire in the same annealing process are processed to obtain the annealing asynchronous outlier value;
[0087] Exemplary:
[0088] The annealing asynchronous area value ratio is recorded as Ts;
[0089] The annealing asynchronous pole deviation ratio is recorded as Tp;
[0090] That is, through the formula The annealing asynchronous outlier Ti is calculated, where k is a preset proportional coefficient and the value of k is 0.6.
[0091] The process of obtaining the preset proportional coefficient k is as follows:
[0092] There are m groups of historical data, each group of historical data includes annealing asynchronous area value Ts, annealing asynchronous extreme deviation ratio Tp and annealing asynchronous outlier Ti;
[0093] A linear model is used to fit m groups of historical data, and the prepared historical data is brought into the selected fitting model for fitting, and the mean of the fitting coefficients is obtained as the preset proportional coefficient k.
[0094] Acquire the annealing asynchronous different values Ti of the same copper conductor wire in multiple annealing processes, and integrate the annealing asynchronous different values Ti of the same copper conductor wire in multiple annealing processes to obtain the annealing asynchronous different value group of the copper conductor wire;
[0095] The annealing asynchronous outlier group is processed according to the variance calculation formula to obtain the annealing variance value of the annealing asynchronous outlier group, which is recorded as Ha;
[0096] The annealing asynchronous outlier group is processed according to the average value calculation formula to obtain the annealing average value of the annealing asynchronous outlier group, and the annealing average value of the annealing asynchronous outlier group is calculated by ratio calculation with the annealing standard value of the annealing asynchronous outlier group to obtain the annealing mean ratio of the annealing asynchronous outlier group, which is recorded as Hp;
[0097] Among them, the annealing standard value of the annealing non-synchronous outlier group is set by the staff based on experience;
[0098] Compare the annealing asynchronous different value with the annealing asynchronous different value requirement range value, record the number of annealing times when the annealing asynchronous different value does not meet the annealing asynchronous different value requirement range value as the abnormal annealing number, and obtain the number of abnormal annealing times;
[0099] The ratio of the number of abnormal annealing times to the total number of annealing times is calculated to obtain the abnormal annealing number ratio, which is recorded as Hs;
[0100] By formula The annealing characterization dynamic value Hi of the copper conductor wire is calculated, where Fi is the dryness coefficient of the copper conductor wire before annealing, a1 and a2 are preset proportional coefficients, a1 is 0.37, and a2 is 0.42.
[0101] The dryness coefficient Fi of the copper conductor wire before annealing is obtained by processing the dryness data of the copper conductor wire before each annealing of the copper conductor wire;
[0102] Specific:
[0103] Obtaining a dryness characterization value of the copper conductor wire before annealing each time;
[0104] Among them, the dryness data of the copper conductor wire is obtained by using an infrared thermal imager to perform non-contact temperature measurement on the copper conductor wire, and by displaying the temperature distribution on the surface of the wire, the dryness is judged and the dryness characterization value is obtained;
[0105] Calculate the difference between the dryness characterization value of the copper conductor wire before annealing each time and the dryness characterization threshold of the copper conductor wire before annealing each time to obtain the dryness difference of the copper conductor wire;
[0106] Integrating the drying differences of the copper conductor wire during multiple annealing processes of the same copper conductor wire to obtain a drying difference behavior value group of the copper conductor wire;
[0107] The drying difference behavior value group is processed according to the variance calculation formula to obtain the drying variance value of the drying difference behavior value group, which is recorded as Fa;
[0108] Get the maximum value in the drying difference behavior value group and mark it as Fmax;
[0109] Get the minimum value in the drying difference behavior value group and mark it as Fmin;
[0110] The drying deviation ratio Fp of the drying difference behavior value group is calculated by the formula Fp=(Fmax-Fmin) / Fmax;
[0111] Then through the formula The dryness coefficient Fi of the copper conductor wire before annealing is obtained, wherein b1 and b2 are both preset proportional factors, b1 is 0.53, and b2 is 0.45.
[0112] The technical scheme of the present invention is as follows: by processing the temperature change of the copper conductor wire in each annealing process, that is, by comparing the real-time annealing time and the real-time annealing temperature at the real-time annealing time The real-time temperature change curve constructed with the standard temperature change curve is processed to obtain the annealing asynchronous area ratio and the annealing asynchronous extreme deviation ratio of the copper conductor wire in a single annealing process, and based on the annealing asynchronous area ratio and the annealing asynchronous extreme deviation ratio, the annealing asynchronous outlier is obtained, and then the annealing asynchronous outliers in multiple annealing processes of the copper conductor wire are integrated to obtain the annealing asynchronous outlier group, and the annealing variance value, the annealing mean ratio and the annealing anomaly number ratio of the annealing asynchronous outlier group are obtained according to the annealing asynchronous outlier group, and then combined with the dryness characterization value of the copper conductor wire in each annealing process, the annealing characterization dynamic value of the copper conductor wire in the entire annealing process is obtained, thereby completing the state evaluation of the copper conductor wire in the entire annealing process.
[0113] Example 2
[0114] like Figure 2 As shown, based on the obtained annealing characterization dynamic value of the copper conductor wire, the overall annealing state of the copper conductor wire is identified;
[0115] The limit values of the annealing characterization dynamic value of the copper conductor wire are preset to be Hi1 and Hi2, wherein Hi1<Hi2;
[0116] Among them, the limit values Hi1 and Hi2 of the annealing characterization dynamic value of the conductor wire are empirical values, which are obtained based on experience:
[0117] In the actual process of obtaining, there are many groups of annealing variance values of annealing asynchronous outlier groups, annealing mean ratios of annealing asynchronous outlier groups, annealing anomaly ratios, dryness coefficients of copper conductor wires before annealing, and annealing characterization dynamic values of copper conductor wires. The annealing variance values of many groups of annealing asynchronous outlier groups, annealing mean ratios of annealing asynchronous outlier groups, annealing anomaly ratios, and dryness coefficients of copper conductor wires before annealing are processed to obtain the annealing characterization dynamic values of copper conductor wires. The staff annealed the copper conductor wires according to the annealing characterization dynamic values of so many groups of copper conductor wires. The state level is identified, so as to obtain a corresponding relationship between an annealing characterization dynamic value of the copper conductor wire and the annealing state level of the copper conductor wire, and then the annealing characterization dynamic value threshold of the copper conductor wire is derived and divided according to the annealing state of the copper conductor wire of the annealing characterization dynamic value of the copper conductor wire, so as to obtain the limit values Hi1 and Hi2 of the annealing characterization dynamic value threshold of the copper conductor wire, and the annealing state of the copper conductor wire corresponding to the annealing characterization dynamic value of the copper conductor wire is identified by comparing the limit values of the annealing characterization dynamic value threshold of the copper conductor wire;
[0118] When Hi<Hi1 or Hi>Hi2, it indicates that the annealing state of the copper conductor wire is poor as a whole, and an abnormal annealing state signal is obtained;
[0119] When Hi1≤Hi≤Hi2, it indicates that the annealing state of the copper conductor wire is good as a whole, and a normal annealing state signal is obtained.
[0120] The technical solution of the present invention is: the annealing variance value obtained according to the annealing asynchronous outlier group, the annealing mean ratio of the annealing asynchronous outlier group, the annealing anomaly number ratio and the annealing characterization dynamic value obtained by processing the dryness coefficient of the copper conductor wire before annealing are graded to complete the state identification of the copper conductor wire in the annealing process and complete the quality identification of the copper conductor wire processing.
[0121] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.
Claims
1. A copper conductor wire continuous drawing and undrawing process, characterized in that: The following steps are involved: The copper conductor is fed into a wire drawing machine for multiple stretching until the target diameter of the copper conductor wire is obtained; Annealing the stretched copper conductor wire, obtaining annealing characterization data of the copper conductor wire during the annealing process, obtaining an annealing characterization dynamic value of the copper conductor wire based on the annealing characterization data, and identifying the annealing state of the copper conductor wire; The annealing state of the copper conductor wire includes a normal annealing state signal and an abnormal annealing state signal; The copper conductor wire in the normal annealing state is taken up after cooling, completing the continuous drawing and annealing process of the copper conductor; By comparing the real-time annealing time and the real-time annealing temperature at the real-time annealing time to the real-time annealing curve constructed with the standard temperature change curve, the annealing asynchronous area ratio and the annealing asynchronous extreme deviation ratio of the copper conductor wire in a single annealing process are obtained, and the annealing asynchronous outlier is obtained based on the annealing asynchronous area ratio and the annealing asynchronous extreme deviation ratio. Then, the annealing asynchronous outliers in multiple annealing processes of the copper conductor wire are integrated to obtain the annealing asynchronous outlier group. According to the annealing asynchronous outlier group, the annealing variance value, the annealing mean ratio and the annealing anomaly number ratio of the annealing asynchronous outlier group are obtained. Combined with the dryness characterization value of the copper conductor wire in each annealing process, the annealing characterization dynamic value of the copper conductor wire in the entire annealing process is obtained, thereby completing the state evaluation of the copper conductor wire in the entire annealing process.
2. A copper conductor wire continuous drawing and annealing process according to claim 1, characterized in that: The annealing characterization data includes the real-time annealing time during each copper conductor wire annealing process, and the real-time annealing temperature at the real-time annealing time; During each annealing process of the copper conductor wire, a temperature recognition model is constructed using the real-time annealing time in the annealing characterization data and the real-time annealing temperature at the real-time annealing time; A binary linear function is established based on the real-time annealing time and the real-time annealing temperature at the real-time annealing time, that is, the real-time annealing time is taken as the independent variable and the real-time annealing temperature is taken as the dependent variable to construct a real-time temperature change curve.
3. A copper conductor wire continuous drawing and annealing process according to claim 2, characterized in that: Compare the real-time temperature change curve during each copper conductor wire annealing process with the standard temperature change curve; If the real-time temperature change curve is below the standard temperature change curve, it means that the real-time annealing temperature needs to be increased under the current real-time annealing time so that the real-time temperature change curve is closer to the standard temperature change curve; If the real-time temperature change curve is above the standard temperature change curve, it means that the real-time annealing temperature needs to be lowered under the current real-time annealing time so that the real-time temperature change curve is closer to the standard temperature change curve.
4. A copper conductor wire continuous drawing and annealing process according to claim 3, characterized in that: Processing the closed temperature-time graph formed by the real-time temperature change curve and the standard temperature change curve; Calculate the area of the closed region of the closed temperature-time graph to obtain the annealing asynchronous area value; Calculate the ratio of the annealing asynchronous area value to the annealing asynchronous area threshold to obtain the annealing asynchronous area ratio; Obtain the maximum spacing value of the real-time temperature change curve and the standard temperature change curve in the closed temperature-time graph, calculate the ratio of the maximum spacing value to the standard spacing value, and obtain the annealing asynchronous extreme deviation ratio; The annealing asynchronous area value ratio is recorded as Ts; The annealing asynchronous pole deviation ratio is recorded as Tp; That is, through the formula The annealing asynchronous outlier Ti is calculated, where k is a preset proportional coefficient.
5. The copper conductor wire continuous drawing and annealing process according to claim 1, characterized in that: The process of obtaining the dynamic value of annealing characterization of copper conductor wire is as follows: The annealing asynchronous different values of the same copper conductor wire in multiple annealing processes are integrated to obtain an annealing asynchronous different value group; According to the annealing asynchronous outlier group, the annealing variance value, annealing mean ratio and annealing anomaly number are obtained; The annealing variance value is recorded as Ha; The annealing mean ratio is denoted as Hp; The annealing anomaly number is recorded as Hs; By formula The annealing characterization dynamic value Hi of the copper conductor wire is calculated, where Fi is the dryness coefficient of the copper conductor wire before annealing, and a1 and a2 are preset proportional coefficients.
6. A copper conductor wire continuous drawing and annealing process according to claim 5, characterized in that: The process of obtaining the annealing mean ratio is: The annealing asynchronous outlier group is processed according to the average value calculation formula to obtain the annealing average value of the annealing asynchronous outlier group, and the annealing average value of the annealing asynchronous outlier group is calculated by ratio calculation with the annealing standard value of the annealing asynchronous outlier group to obtain the annealing mean ratio of the annealing asynchronous outlier group.
7. A copper conductor wire continuous drawing and annealing process according to claim 5, characterized in that: The process of obtaining the annealing anomaly number is as follows: Compare the annealing asynchronous different value with the annealing asynchronous different value requirement range value, record the number of annealing times when the annealing asynchronous different value does not meet the annealing asynchronous different value requirement range value as the abnormal annealing number, and obtain the number of abnormal annealing times; The abnormal annealing times are calculated by ratioing the number of abnormal annealing times to the total number of annealing times to obtain the abnormal annealing number ratio.
8. The copper conductor wire continuous drawing and annealing process according to claim 5, characterized in that: The process of obtaining the annealing variance value is: The annealing asynchronous outlier group is processed according to the variance calculation formula to obtain the annealing variance value of the annealing asynchronous outlier group.
9. The copper conductor wire continuous drawing and annealing process according to claim 1, characterized in that: The process of obtaining the dryness coefficient of the copper conductor wire before annealing is: Obtaining a dryness characterization value of the copper conductor wire before annealing each time; Calculate the difference between the dryness characterization value of the copper conductor wire before annealing each time and the dryness characterization threshold of the copper conductor wire before annealing each time to obtain the dryness difference of the copper conductor wire; Integrating the drying differences of the copper conductor wire during multiple annealing processes of the same copper conductor wire to obtain a drying difference behavior value group of the copper conductor wire; The drying difference behavior value group is processed according to the variance calculation formula to obtain the drying variance value of the drying difference behavior value group, which is recorded as Fa; Get the maximum value in the drying difference behavior value group and mark it as Fmax; Get the minimum value in the drying difference behavior value group and mark it as Fmin; By formula Calculate and obtain the drying deviation ratio Fp of the drying difference behavior value group; Then through the formula The dryness coefficient Fi of the copper conductor wire before annealing is obtained, wherein b1 and b2 are both preset proportional factors.
10. A copper conductor wire continuous drawing and annealing process according to claim 5, characterized in that: The limit values of the annealing characterization dynamic value of the copper conductor wire are preset to be Hi1 and Hi2, wherein Hi1<Hi2; When Hi<Hi1 or Hi>Hi2, it indicates that the annealing state of the copper conductor wire is poor as a whole, and an abnormal annealing state signal is obtained; When Hi1≤Hi≤Hi2, it indicates that the annealing state of the copper conductor wire is good as a whole, and a normal annealing state signal is obtained.
Citation Information
Patent Citations
Brass wire and processing method of brass wire
CN103643078A
Hot forming steel and preparation method thereof
CN117802298A