Continuous homogenizing furnace control system, control method, equipment and medium

Abstract

The invention relates to the technical field of homogenizing furnaces, and provides a continuous homogenizing furnace control system, control method, equipment and medium, and the method comprises the following steps: obtaining multi-stage uniform annealing parameters of a workpiece to be uniformly annealed; according to the multi-stage uniform annealing parameters and a temperature drift compensation model, temperature drift compensation correction is conducted on the preset annealing temperature of each selected annealing area, and the optimal annealing temperature of each selected annealing area is obtained; according to the multi-stage uniform annealing parameters and an annealing time compensation model, annealing time compensation correction is conducted on the preset annealing time of each selected annealing area, and the optimal annealing time of each selected annealing area is obtained; and according to the optimal annealing temperature and the optimal annealing time, carrying out homogenizing annealing treatment on the workpiece to be uniformly annealed. According to the invention, the annealing temperature and the annealing time can be compensated and corrected so as to obtain more accurate annealing temperature and annealing time, and the annealing quality of the workpiece to be uniformly annealed is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of homogenizing furnaces, and in particular to a continuous homogenizing furnace control system, control method, equipment and medium. Background Art

[0002] Homogenization treatment, also known as homogenization annealing, refers to the process of heating the alloy ingot to a temperature close to the solidus temperature and keeping it warm for a long time, and then slowly cooling it to room temperature. Its purpose is to eliminate or reduce the heterogeneity of the chemical composition and organization within the crystal through the diffusion of alloy element atoms, improve the internal organization of the ingot, eliminate the residual stress of the ingot, improve the mechanical processing performance of the ingot, and at the same time improve the plasticity, reduce deformation resistance, and improve the hot processing performance of the alloy.

[0003] The continuous homogenizing furnace divides the furnace body into multiple areas according to the diameter of the aluminum rod being processed. A hot air circulation fan is installed at the top of each area to make the furnace gas conduct convection stirring to meet the short-time heating of the aluminum rod and the precise control of the aluminum rod temperature. Its working principle is to calculate the heating time according to the diameter of the aluminum rod and the heating efficiency in the furnace, and control the moving speed of the aluminum rod in the furnace according to the length of the area in the furnace to ensure the heating and insulation time of the aluminum rod.

[0004] The Chinese invention patent with application number CN202211620401.8 discloses a continuous homogenizing furnace and homogenizing system, which divides the homogenizing furnace into multiple areas, and sets a hot air circulation fan at the top of each area to make the furnace gas convectively stirred, so as to meet the short-time heating of the aluminum rod and the precise control of the temperature of the aluminum rod. Its working principle is to calculate the heating time according to the diameter of the aluminum rod and the heating efficiency in the furnace, and control the moving speed of the aluminum rod in the furnace according to the length of the area in the furnace to ensure the heating and insulation time of the aluminum rod. Since the annealing temperature needs to be collected in real time through the temperature sensor during the annealing process of the aluminum rod, the output signal of the temperature sensor will drift with the temperature change. The existence of temperature drift will affect the accuracy of the annealing temperature collection, and then affect the specific annealing time, and finally affect the annealing quality of the aluminum rod. The above-mentioned continuous homogenizing furnace and homogenizing system do not take the temperature drift factor into consideration, and compensate and correct the annealing temperature and annealing time. Its annealing quality needs to be improved. Summary of the invention

[0005] Based on this, in order to solve the problem that the annealing quality of the existing continuous homogenizing furnace and homogenizing system needs to be improved because the temperature drift factor is not taken into account and the annealing temperature and annealing time are compensated and corrected, the present invention provides a continuous homogenizing furnace control system, control method, equipment and medium, and its specific technical scheme is as follows:

[0006] A continuous homogenizing furnace control system comprises a furnace body, a hot air circulation mechanism and a heating mechanism, wherein the chamber of the furnace body is divided into a plurality of annealing areas along the length direction of the furnace body, each of the annealing areas is equipped with the hot air circulation mechanism and the heating mechanism, the heating mechanism is used to heat and raise the temperature of the workpiece to be uniformly annealed in the annealing area, and the hot air circulation mechanism is used to circulate the hot air in the annealing area; the continuous homogenizing furnace control system also comprises:

[0007] A parameter acquisition module, used for acquiring multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the parameters of the workpiece to be uniformly annealed;

[0008] A first construction module is used to construct a temperature drift compensation model, and to perform temperature drift compensation correction on a preset annealing temperature of each selected annealing area according to the multi-stage uniform annealing parameters and the temperature drift compensation model, so as to obtain an optimal annealing temperature of each selected annealing area;

[0009] A second construction module is used to construct an annealing time compensation model, and to perform annealing time compensation correction on the preset annealing time of each selected annealing area according to the multi-stage uniform annealing parameters and the annealing time compensation model, so as to obtain the optimal annealing time of each selected annealing area;

[0010] The control module is used to control the operation of the hot air circulation mechanism and the heating mechanism according to the optimal annealing temperature and the optimal annealing time, so as to perform a homogenizing annealing treatment on the workpiece to be uniformly annealed.

[0011] The continuous homogenizing furnace control system constructs a temperature drift compensation model to perform temperature drift compensation correction on the preset annealing temperature of each selected annealing area, and obtains the optimal annealing temperature of each selected annealing area, and constructs an annealing time compensation model to perform annealing time compensation correction on the preset annealing time of each selected annealing area, and obtains the optimal annealing time of each selected annealing area. According to the optimal annealing temperature and the optimal annealing time, the hot air circulation mechanism and the heating mechanism can be controlled to perform homogenizing annealing treatment on the workpiece to be uniformly annealed. In the annealing process of the workpiece to be uniformly annealed, the temperature drift factor is taken into account, and the annealing temperature and annealing time can be compensated and corrected to obtain more accurate annealing temperature and annealing time, thereby improving the annealing quality of the workpiece to be uniformly annealed.

[0012] Preferably, the parameter acquisition module includes:

[0013] A first parameter acquisition unit, configured to acquire the number of uniform annealing stages of the workpiece to be uniformly annealed according to the type of the workpiece to be uniformly annealed, and select an annealing area according to the number of uniform annealing stages;

[0014] A second parameter acquisition unit, configured to acquire an annealing temperature interval and an annealing time interval of each uniform annealing stage of the workpiece to be uniformly annealed according to the type and size of the workpiece to be uniformly annealed;

[0015] The third parameter acquisition unit is used to acquire the multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the annealing area, the annealing temperature interval and the annealing time interval.

[0016] Preferably, the first building block comprises:

[0017] A multi-dimensional parameter acquisition unit, used to acquire multi-dimensional parameters of a temperature acquisition unit used to acquire the real-time temperature of the workpiece to be uniformly annealed in each annealing area;

[0018] A parameter characteristic value extraction unit, used to extract parameter characteristic values ​​from the multi-dimensional parameters that may affect the acquisition accuracy of the real-time temperature;

[0019] The first construction unit is used to construct the temperature drift compensation model according to the parameter characteristic value.

[0020] Preferably, the annealing time compensation model is expressed as

[0021] Wherein, TC represents the annealing time compensation correction value, T1 represents the upper limit of the annealing time interval, T0 represents the lower limit of the annealing time interval, T1' represents the upper limit of the annealing temperature interval, T0' represents the lower limit of the annealing temperature interval, n represents the number of temperature drift sampling points in the preset annealing temperature interval, α represents the annealing time adjustment coefficient, ΔT i Indicates the temperature drift value corresponding to the i-th temperature drift sampling point.

[0022] A continuous homogenizing furnace control method, applied to the continuous homogenizing furnace control system, comprises the following steps:

[0023] Acquiring parameters of a workpiece to be uniformly annealed, and acquiring multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the parameters of the workpiece to be uniformly annealed;

[0024] Constructing a temperature drift compensation model, and performing temperature drift compensation correction on the preset annealing temperature of each selected annealing area according to the multi-stage uniform annealing parameters and the temperature drift compensation model, so as to obtain the optimal annealing temperature of each selected annealing area;

[0025] Constructing an annealing time compensation model, and performing annealing time compensation correction on the preset annealing time of each selected annealing area according to the multi-stage uniform annealing parameters and the annealing time compensation model, so as to obtain the optimal annealing time of each selected annealing area;

[0026] According to the optimal annealing temperature and the optimal annealing time, a homogenizing annealing treatment is performed on the workpiece to be homogenized.

[0027] Preferably, a specific method for obtaining the multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the parameters of the workpiece to be uniformly annealed comprises the following steps:

[0028] According to the type of the workpiece to be uniformly annealed, the number of uniform annealing stages of the workpiece to be uniformly annealed is obtained, and an annealing area is selected according to the number of uniform annealing stages;

[0029] According to the type and size of the workpiece to be uniformly annealed, obtaining the annealing temperature interval and the annealing time interval of each uniform annealing stage of the workpiece to be uniformly annealed;

[0030] The multi-stage uniform annealing parameters of the workpiece to be uniformly annealed are obtained according to the annealing area, the annealing temperature interval and the annealing time interval.

[0031] Preferably, the specific method of constructing the temperature drift compensation model includes the following steps:

[0032] Acquire multi-dimensional parameters of a temperature acquisition unit in each annealing area for acquiring the real-time temperature of the workpiece to be uniformly annealed;

[0033] Extracting parameter characteristic values ​​from the multi-dimensional parameters that may affect the acquisition accuracy of the real-time temperature;

[0034] The temperature drift compensation model is constructed according to the parameter characteristic values ​​and the temperature drift values ​​at different temperature points corresponding to the parameter characteristic values.

[0035] Preferably, according to the formula Constructing the annealing time compensation model;

[0036] Wherein, TC represents the annealing time compensation correction value, T1 represents the upper limit of the annealing time interval, T0 represents the lower limit of the annealing time interval, T1' represents the upper limit of the annealing temperature interval, T0' represents the lower limit of the annealing temperature interval, n represents the number of temperature drift sampling points in the preset annealing temperature interval, α represents the annealing time adjustment coefficient, ΔT i Indicates the temperature drift value corresponding to the i-th temperature drift sampling point.

[0037] A continuous homogenizing furnace control device, comprising:

[0038] Controller;

[0039] A memory storing executable instructions;

[0040] The executable instructions can be run on the controller and implement the continuous homogenizing furnace control method.

[0041] A computer-readable storage medium stores a computer program, which implements the continuous homogenizing furnace control method when the computer program is executed by a processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0043] Figure 1 It is a schematic diagram of the overall process of a continuous homogenizing furnace control method in one embodiment of the present invention;

[0044] Figure 2 It is a flowchart of a specific method for obtaining multi-stage uniform annealing parameters in one embodiment of the present invention;

[0045] Figure 3 It is a flowchart of a specific method for constructing a temperature drift compensation model in one embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0050] like Figure 1 As shown, a continuous homogenizing furnace control system in one embodiment of the present invention includes a furnace body, a hot air circulation mechanism and a heating mechanism. The chamber of the furnace body is divided into a plurality of annealing areas along the length direction of the furnace body. Each of the annealing areas is equipped with the hot air circulation mechanism and the heating mechanism. The heating mechanism is used to heat and raise the temperature of the workpiece to be uniformly annealed in the annealing area, and the hot air circulation mechanism is used to circulate the hot air in the annealing area.

[0051] As the specific structures of the hot air circulation mechanism and the heating mechanism belong to conventional technical means in the field, they will not be described in detail here.

[0052] The continuous homogenizing furnace control system further includes a parameter acquisition module, a first construction module, a second construction module and a control module.

[0053] The parameter acquisition module is used to acquire the multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the workpiece parameters to be uniformly annealed. The workpiece parameters to be uniformly annealed include but are not limited to the type and size of the workpiece to be uniformly annealed.

[0054] For workpieces of different types and sizes to be uniformly annealed, the uniform annealing parameters at different stages are also different. For example, for 7000 series aluminum alloy ingots, according to the specific process, the first stage uniform annealing temperature can be selected between 390℃-430℃, and the corresponding annealing time range is 12h-16h, the second stage uniform annealing temperature can be selected between 460℃-470℃, and the corresponding annealing time range is 12h-16h, and the third stage uniform annealing temperature can be selected between 465℃-475℃, and the corresponding annealing time range is 48h-60h; for 7022 aluminum alloy ingots, the first stage homogenization annealing temperature can be selected between 445℃-475℃, and the corresponding annealing time range is 12h-24h, the second stage homogenization annealing temperature can be selected between 180℃-220℃, and the corresponding annealing time range is 12h-24h, and the third stage homogenization annealing temperature can be selected between 120℃-150℃, and the annealing time range is 24h.

[0055] In addition, even for the same type of workpieces to be uniformly annealed, the corresponding annealing temperature and annealing time can be appropriately adjusted according to their specific dimensions, such as the diameter of the aluminum rod, based on actual experience.

[0056] Preferably, the parameter acquisition module includes a first parameter acquisition unit, a second parameter acquisition unit and a third parameter acquisition unit.

[0057] The first parameter acquisition unit is used to acquire the number of uniform annealing stages of the workpiece to be uniformly annealed according to the type of the workpiece to be uniformly annealed, and select an annealing area according to the number of uniform annealing stages; the second parameter acquisition unit is used to acquire the annealing temperature range and annealing time range of each uniform annealing stage of the workpiece to be uniformly annealed according to the type and size of the workpiece to be uniformly annealed; the third parameter acquisition unit is used to acquire the multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the annealing area, the annealing temperature range and the annealing time range.

[0058] The first construction module is used to construct a temperature drift compensation model, and to perform temperature drift compensation correction on the preset annealing temperature of each selected annealing area according to the multi-stage uniform annealing parameters and the temperature drift compensation model to obtain the optimal annealing temperature of each selected annealing area.

[0059] The chamber of the furnace body is divided into a plurality of annealing areas along the length direction of the furnace body, and the annealing area corresponding to the specific number of annealing stages is selected according to the specific number of annealing stages of the workpiece to be uniformly annealed. For the preset annealing temperatures of different selected annealing areas, the corresponding temperature drift values ​​are obtained according to the temperature drift compensation model, and the preset annealing temperature of each selected preset annealing area is corrected by temperature drift compensation according to the temperature drift value, and then the annealing temperature corrected by temperature drift compensation is used as the optimal annealing temperature.

[0060] Here, the preset annealing temperature of each selected annealing area can be set by a technician according to the corresponding uniform annealing parameter, or the median of the annealing temperature range corresponding to the uniform annealing parameter can be used as the preset annealing temperature.

[0061] The second construction module is used to construct an annealing time compensation model, and according to the multi-stage uniform annealing parameters and the annealing time compensation model, annealing time compensation correction is performed on the preset annealing time of each selected annealing area to obtain the optimal annealing time of each selected annealing area.

[0062] Here, the preset annealing time of each selected annealing area can be set by a technician according to the corresponding uniform annealing parameter, or the median of the annealing time range corresponding to the uniform annealing parameter can be used as the preset annealing time.

[0063] The annealing time compensation model can be expressed as compensating and correcting the annealing time according to the temperature drift values ​​of different temperature points in the annealing interval, or performing corresponding compensation correction according to the ratio AT1 / AT0 between the optimal annealing temperature AT1 and the preset annealing temperature AT0. Specifically, a preset time compensation correction value TC is set, and the corresponding compensation correction is obtained according to the formula TC / (AT1 / AT0). Of course, the annealing time compensation model can be adjusted accordingly according to different actual conditions.

[0064] The control module is used to control the operation of the hot air circulation mechanism and the heating mechanism according to the optimal annealing temperature and the optimal annealing time, so as to perform a homogenizing annealing treatment on the workpiece to be uniformly annealed.

[0065] The continuous homogenizing furnace control system constructs a temperature drift compensation model to perform temperature drift compensation correction on the preset annealing temperature of each selected annealing area, and obtains the optimal annealing temperature of each selected annealing area, and constructs an annealing time compensation model to perform annealing time compensation correction on the preset annealing time of each selected annealing area, and obtains the optimal annealing time of each selected annealing area. According to the optimal annealing temperature and the optimal annealing time, the hot air circulation mechanism and the heating mechanism can be controlled to perform homogenizing annealing treatment on the workpiece to be uniformly annealed. In the annealing process of the workpiece to be uniformly annealed, the temperature drift factor is taken into account, and the annealing temperature and annealing time can be compensated and corrected to obtain more accurate annealing temperature and annealing time, thereby improving the annealing quality of the workpiece to be uniformly annealed.

[0066] As a preferred technical solution, the first construction module includes a multi-dimensional parameter acquisition unit, a parameter feature value extraction unit and a first construction unit.

[0067] The multi-dimensional parameter acquisition unit is used to acquire multi-dimensional parameters of a temperature acquisition unit in each annealing area for acquiring the real-time temperature of the workpiece to be uniformly annealed.

[0068] Each annealing area is equipped with at least one temperature acquisition unit for acquisition. The multi-dimensional parameters include but are not limited to temperature acquisition accuracy, use time, power supply voltage and electromagnetic interference signal.

[0069] The parameter characteristic value extraction unit is used to extract parameter characteristic values ​​from the multi-dimensional parameters that may affect the acquisition accuracy of the real-time temperature.

[0070] Here, the parameter characteristic values ​​in the multi-dimensional parameters that may affect the acquisition accuracy of the real-time temperature can be selected by a technician.

[0071] The first construction unit is used to construct the temperature drift compensation model according to the parameter characteristic value.

[0072] The specific method for constructing the temperature drift compensation model according to the parameter characteristic value includes: first obtaining the temperature drift value of the temperature acquisition unit at different temperature points, obtaining the temperature drift curve function of the temperature acquisition unit according to the temperature drift value, and then constructing the temperature drift compensation model according to the temperature drift curve function and the parameter characteristic value. Specifically, the temperature drift compensation model is expressed as Wherein, f(T) represents the temperature drift curve function, T represents the temperature value, and m represents the number of parameter characteristic values ​​extracted from the multi-dimensional parameters that may affect the acquisition accuracy of the real-time temperature; C i represents the ith parameter characteristic value, which can be obtained by simulating the predicted value within the preset time period; C' is the preset parameter characteristic value standard value, which can be set by the technician; δ i It represents the adjustment coefficient of the characteristic value of the i-th parameter, which can be set by a technician, and ΔT represents the temperature drift value.

[0073] In practical applications, there are many factors that cause temperature drift of temperature sensors, including ambient temperature changes, component aging, environmental electromagnetic interference, power supply voltage, etc. The existence of temperature drift will affect the error between the temperature value collected by the temperature sensor and the actual temperature value. The present invention obtains multi-dimensional parameters of the temperature collection unit used to collect the real-time temperature of the workpiece to be uniformly annealed in each annealing area, and extracts parameter characteristic values ​​from the multi-dimensional parameters that may affect the collection accuracy of the real-time temperature, and constructs the temperature drift compensation model according to the parameter characteristic values. It not only considers the influence of the actual real-time measured temperature on the temperature drift of the temperature acquisition unit, but also takes into account other parameter characteristic values ​​that may affect the acquisition accuracy of the real-time temperature, such as electromagnetic interference and usage time. It combines the multi-dimensional parameter characteristic values ​​to comprehensively measure the influence of temperature drift on the measurement value of the temperature acquisition unit, which can improve the accuracy of the real-time temperature of the workpiece to be uniformly annealed collected by the temperature acquisition unit, thereby better controlling the specific annealing operation and improving the annealing quality of the workpiece.

[0074] As a preferred technical solution, the annealing time compensation model is expressed as Wherein, TC represents the annealing time compensation correction value, T1 represents the upper limit of the annealing time interval, T0 represents the lower limit of the annealing time interval, T1' represents the upper limit of the annealing temperature interval, T0' represents the lower limit of the annealing temperature interval, n represents the number of temperature drift sampling points in the preset annealing temperature interval, α represents the annealing time adjustment coefficient, ΔT i Indicates the temperature drift value corresponding to the i-th temperature drift sampling point, which can be calculated based on the temperature drift compensation model get.

[0075] Compensation model by annealing time The obtained annealing time compensation correction value takes into account the actual temperature drift value. The actual annealing time is adjusted according to the error between the measured temperature of the workpiece measured by the temperature acquisition unit and the actual temperature of the workpiece. A more accurate and appropriate annealing time can be obtained, the annealing quality of the workpiece to be uniformly annealed is improved, and the problem of workpiece performance degradation caused by too short or too long annealing time is avoided.

[0076] The present invention also provides a continuous homogenizing furnace control method, which is applied to the continuous homogenizing furnace control system. Figure 1 The steps shown include:

[0077] S1, obtaining parameters of a workpiece to be uniformly annealed, and obtaining multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the parameters of the workpiece to be uniformly annealed.

[0078] The specific annealing temperature and annealing time of workpieces of different types and sizes are different, and the number of homogenization annealing stages may not be the same.

[0079] Preferably, in step S1, Figure 2 As shown, the specific method for obtaining the multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the parameters of the workpiece to be uniformly annealed includes the following steps:

[0080] S10, acquiring the number of uniform annealing stages of the workpiece to be uniformly annealed according to the type of the workpiece to be uniformly annealed, and selecting an annealing area according to the number of uniform annealing stages;

[0081] S11, acquiring an annealing temperature interval and an annealing time interval of each uniform annealing stage of the workpiece to be uniformly annealed according to the type and size of the workpiece to be uniformly annealed;

[0082] S12, acquiring multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the annealing area, the annealing temperature interval and the annealing time interval.

[0083] S2, constructing a temperature drift compensation model, and performing temperature drift compensation correction on the preset annealing temperature of each selected annealing area according to the multi-stage uniform annealing parameters and the temperature drift compensation model, so as to obtain the optimal annealing temperature of each selected annealing area.

[0084] Preferably, if Figure 3 As shown, the specific method of constructing the temperature drift compensation model includes the following steps:

[0085] S20, acquiring multi-dimensional parameters of a temperature acquisition unit in each annealing area for acquiring the real-time temperature of the workpiece to be uniformly annealed.

[0086] The multi-dimensional parameters include but are not limited to temperature acquisition accuracy, usage time, power supply voltage and electromagnetic interference signal.

[0087] S21, extracting parameter characteristic values ​​from the multi-dimensional parameters that may affect the acquisition accuracy of the real-time temperature.

[0088] S22: constructing the temperature drift compensation model according to the parameter characteristic value.

[0089] The temperature drift compensation model can be expressed as Wherein, f(T) represents the temperature drift curve function, T represents the temperature value, and m represents the number of parameter characteristic values ​​extracted from the multi-dimensional parameters that may affect the acquisition accuracy of the real-time temperature; C i represents the ith parameter characteristic value, which can be obtained by simulating the predicted value within the preset time period; C' is the preset parameter characteristic value standard value, which can be set by the technician; δ i It represents the adjustment coefficient of the characteristic value of the i-th parameter, which can be set by a technician, and ΔT represents the temperature drift value.

[0090] By acquiring multi-dimensional parameters of a temperature acquisition unit in each annealing area for acquiring the real-time temperature of the workpiece to be uniformly annealed, and extracting parameter characteristic values ​​that may affect the acquisition accuracy of the real-time temperature in the multi-dimensional parameters, the temperature drift compensation model is constructed according to the parameter characteristic values. It not only considers the influence of the actual real-time measured temperature on the temperature drift of the temperature acquisition unit, but also takes into account other parameter characteristic values ​​that may affect the acquisition accuracy of the real-time temperature, such as electromagnetic interference and usage time. It combines the multi-dimensional parameter characteristic values ​​to comprehensively measure the influence of temperature drift on the measurement value of the temperature acquisition unit, which can improve the accuracy of the real-time temperature of the workpiece to be uniformly annealed collected by the temperature acquisition unit, thereby better controlling the specific annealing operation and improving the annealing quality of the workpiece.

[0091] S3, constructing an annealing time compensation model, and performing annealing time compensation correction on the preset annealing time of each selected annealing area according to the multi-stage uniform annealing parameters and the annealing time compensation model to obtain the optimal annealing time of each selected annealing area.

[0092] Preferably, according to the formula Constructing the annealing time compensation model;

[0093] Wherein, TC represents the annealing time compensation correction value, T1 represents the upper limit of the annealing time interval, T0 represents the lower limit of the annealing time interval, T1' represents the upper limit of the annealing temperature interval, T0' represents the lower limit of the annealing temperature interval, n represents the number of temperature drift sampling points in the preset annealing temperature interval, α represents the annealing time adjustment coefficient, ΔT i Indicates the temperature drift value corresponding to the i-th temperature drift sampling point.

[0094] Compensation model by annealing time The obtained annealing time compensation correction value takes into account the actual temperature drift value. The actual annealing time is adjusted according to the error between the measured temperature of the workpiece measured by the temperature acquisition unit and the actual temperature of the workpiece. A more accurate and appropriate annealing time can be obtained, the annealing quality of the workpiece to be uniformly annealed is improved, and the problem of workpiece performance degradation caused by too short or too long annealing time is avoided.

[0095] S4, performing a homogenization annealing treatment on the workpiece to be homogenized according to the optimal annealing temperature and the optimal annealing time.

[0096] In summary, the continuous homogenizing furnace control method constructs a temperature drift compensation model to perform temperature drift compensation correction on the preset annealing temperature of each selected annealing area, obtains the optimal annealing temperature of each selected annealing area, and constructs an annealing time compensation model to perform annealing time compensation correction on the preset annealing time of each selected annealing area, obtains the optimal annealing time of each selected annealing area, and can control the action of the hot air circulation mechanism and the heating mechanism according to the optimal annealing temperature and the optimal annealing time, and perform homogenizing annealing treatment on the workpiece to be uniformly annealed. In the process of annealing the workpiece to be uniformly annealed, the temperature drift factor is taken into account, and the annealing temperature and annealing time can be compensated and corrected to obtain more accurate annealing temperature and annealing time, thereby improving the annealing quality of the workpiece to be uniformly annealed.

[0097] The present invention also provides a continuous homogenizing furnace control device, comprising: a controller; a memory storing executable instructions; wherein the executable instructions can be run on the controller and implement the continuous homogenizing furnace control method.

[0098] The present invention also provides a computer-readable storage medium storing a computer program, which implements the continuous homogenizing furnace control method when the computer program is executed by a processor.

[0099] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A continuous homogenizing furnace control system, comprising a furnace body, a hot air circulation mechanism and a heating mechanism, wherein the chamber of the furnace body is divided into a plurality of annealing areas along the length direction of the furnace body, each of the annealing areas is equipped with the hot air circulation mechanism and the heating mechanism, the heating mechanism is used to heat and raise the temperature of the workpiece to be uniformly annealed in the annealing area, and the hot air circulation mechanism is used to circulate the hot air in the annealing area, characterized in that: The continuous homogenizing furnace control system also includes: A parameter acquisition module, used for acquiring multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the parameters of the workpiece to be uniformly annealed; A first construction module is used to construct a temperature drift compensation model, and to perform temperature drift compensation correction on a preset annealing temperature of each selected annealing area according to the multi-stage uniform annealing parameters and the temperature drift compensation model, so as to obtain an optimal annealing temperature of each selected annealing area; A second construction module is used to construct an annealing time compensation model, and to perform annealing time compensation correction on the preset annealing time of each selected annealing area according to the multi-stage uniform annealing parameters and the annealing time compensation model, so as to obtain the optimal annealing time of each selected annealing area; The control module is used to control the operation of the hot air circulation mechanism and the heating mechanism according to the optimal annealing temperature and the optimal annealing time, so as to perform a homogenizing annealing treatment on the workpiece to be uniformly annealed.

2. A continuous homogenizing furnace control system as claimed in claim 1, characterized in that: The parameter acquisition module includes: A first parameter acquisition unit, configured to acquire the number of uniform annealing stages of the workpiece to be uniformly annealed according to the type of the workpiece to be uniformly annealed, and select an annealing area according to the number of uniform annealing stages; A second parameter acquisition unit, configured to acquire an annealing temperature interval and an annealing time interval of each uniform annealing stage of the workpiece to be uniformly annealed according to the type and size of the workpiece to be uniformly annealed; The third parameter acquisition unit is used to acquire the multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the annealing area, the annealing temperature interval and the annealing time interval.

3. A continuous homogenizing furnace control system as claimed in claim 2, characterized in that: The first building block comprises: A multi-dimensional parameter acquisition unit, used to acquire multi-dimensional parameters of a temperature acquisition unit used to acquire the real-time temperature of the workpiece to be uniformly annealed in each annealing area; A parameter characteristic value extraction unit, used to extract parameter characteristic values ​​from the multi-dimensional parameters that may affect the acquisition accuracy of the real-time temperature; The first construction unit is used to construct the temperature drift compensation model according to the parameter characteristic value.

4. A continuous homogenizing furnace control system as claimed in claim 3, characterized in that: The annealing time compensation model is expressed as Wherein, TC represents the annealing time compensation correction value, T1 represents the upper limit of the annealing time interval, T0 represents the lower limit of the annealing time interval, T1' represents the upper limit of the annealing temperature interval, T0' represents the lower limit of the annealing temperature interval, n represents the number of temperature drift sampling points in the preset annealing temperature interval, α represents the annealing time adjustment coefficient, ΔT i Indicates the temperature drift value corresponding to the i-th temperature drift sampling point.

5. A continuous homogenizing furnace control method, applied to the continuous homogenizing furnace control system according to any one of claims 1 to 4, characterized in that: The continuous homogenizing furnace control method comprises the following steps: Acquiring parameters of a workpiece to be uniformly annealed, and acquiring multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the parameters of the workpiece to be uniformly annealed; Constructing a temperature drift compensation model, and performing temperature drift compensation correction on the preset annealing temperature of each selected annealing area according to the multi-stage uniform annealing parameters and the temperature drift compensation model, so as to obtain the optimal annealing temperature of each selected annealing area; Constructing an annealing time compensation model, and performing annealing time compensation correction on the preset annealing time of each selected annealing area according to the multi-stage uniform annealing parameters and the annealing time compensation model, so as to obtain the optimal annealing time of each selected annealing area; According to the optimal annealing temperature and the optimal annealing time, a homogenizing annealing treatment is performed on the workpiece to be homogenized.

6. A continuous homogenizing furnace control method as claimed in claim 5, characterized in that: A specific method for obtaining the multi-stage uniform annealing parameters of the workpiece to be uniformly annealed according to the parameters of the workpiece to be uniformly annealed comprises the following steps: According to the type of the workpiece to be uniformly annealed, the number of uniform annealing stages of the workpiece to be uniformly annealed is obtained, and an annealing area is selected according to the number of uniform annealing stages; According to the type and size of the workpiece to be uniformly annealed, obtaining the annealing temperature interval and the annealing time interval of each uniform annealing stage of the workpiece to be uniformly annealed; The multi-stage uniform annealing parameters of the workpiece to be uniformly annealed are obtained according to the annealing area, the annealing temperature interval and the annealing time interval.

7. A continuous homogenizing furnace control method as claimed in claim 6, characterized in that: The specific method of constructing a temperature drift compensation model includes the following steps: Acquire multi-dimensional parameters of a temperature acquisition unit in each annealing area for acquiring the real-time temperature of the workpiece to be uniformly annealed; Extracting parameter characteristic values ​​from the multi-dimensional parameters that may affect the acquisition accuracy of the real-time temperature; The temperature drift compensation model is constructed according to the parameter characteristic values.

8. A continuous homogenizing furnace control method as claimed in claim 7, characterized in that: According to the formula Constructing the annealing time compensation model; Wherein, TC represents the annealing time compensation correction value, T1 represents the upper limit of the annealing time interval, T0 represents the lower limit of the annealing time interval, T1' represents the upper limit of the annealing temperature interval, T0' represents the lower limit of the annealing temperature interval, n represents the number of temperature drift sampling points in the preset annealing temperature interval, α represents the annealing time adjustment coefficient, ΔT i Indicates the temperature drift value corresponding to the i-th temperature drift sampling point.

9. A continuous homogenizing furnace control device, characterized in that: The continuous homogenizing furnace control device comprises: Controller; A memory storing executable instructions; The executable instructions can be run on the controller and implement the continuous homogenizing furnace control method as described in any one of claims 5 to 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the continuous homogenizing furnace control method according to any one of claims 5 to 8 is implemented.

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