A method for controlling the melting temperature of aluminum ingots

Abstract

The invention discloses a method for controlling the melting temperature of aluminum ingots, and the invention relates to the technical field of aluminum ingot melting. The method solves the problem that in the original processing method, some aluminum ingots are burned due to inconsistent melting points between the aluminum ingots. The invention controls the temperature in the aluminum ingot melting furnace step by step, executes a plurality of different temperature control processes, and the amount of aluminum liquid generated in each different temperature control process is relatively consistent, so as to ensure the overall melting effect of the corresponding aluminum ingots. After the aluminum ingots with low melting points are fully melted, part of the aluminum liquid can wrap other unmelted aluminum ingots, and then the aluminum ingots with high melting points can be gradually melted in this state, so as to achieve the overall effect of uniform melting. In order to keep each group of melting processes relatively consistent, the melting is gradually carried out based on the generation of aluminum liquid in the previous group of melting processes, so as to achieve a better melting effect.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum ingot smelting, and in particular to a method for controlling the melting temperature of aluminum ingots. Background Art

[0002] Aluminum ingot smelting mainly involves heating the aluminum ingot to above the melting point to transform it from solid to liquid. During the smelting process, a certain amount of flux is usually required to remove impurities and oxides in the aluminum liquid and improve the purity of the aluminum liquid. At the same time, stirring and other methods can make the temperature of the aluminum liquid uniform, which promotes the floating and removal of impurities.

[0003] The application with patent publication number CN115049673B relates to a method and system for controlling the melting temperature of aluminum ingots. The grayscale image of the infrared image of the aluminum ingot at the current moment is obtained, and each aluminum ingot area in the grayscale image is segmented. The melting degree of the aluminum ingot at the current moment is obtained according to the proportion of the area of ​​each aluminum ingot area at the current moment to the area of ​​the aluminum ingot area at the initial moment, the temperature difference between the actual melting temperature value of the aluminum ingot area and the melting temperature. The predicted value of the area change of the aluminum ingot area at the next moment is obtained according to the area and temperature value of each aluminum ingot area at the current moment and the area change of the aluminum ingot area at the current moment. The predicted value of the temperature of the aluminum ingot area at the next moment is obtained according to the predicted value of the area change of each aluminum ingot area at the next moment, the area change of the aluminum ingot area at the current moment and the temperature change at the current moment. The furnace temperature at the next moment is controlled according to the predicted value of the temperature of each aluminum ingot area at the next moment. The method is intelligent.

[0004] When the temperature of aluminum ingot smelting is controlled, the smelting furnace is generally controlled by the set temperature, so that the smelting furnace can fully melt the aluminum ingot to produce the corresponding aluminum liquid. However, the original smelting method is to continuously increase the temperature of the corresponding smelting furnace to ensure the real-time production of the corresponding aluminum liquid. However, the original processing method will cause some aluminum ingots to burn due to the inconsistent melting points between the aluminum ingots, resulting in poor aluminum liquid smelting effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a method for controlling the melting temperature of aluminum ingots, which solves the problem in the original processing method that some aluminum ingots may be burned due to inconsistent melting points between the aluminum ingots.

[0006] To achieve the above objectives, the present invention is implemented by the following technical scheme: a method for controlling the melting temperature of aluminum ingots, comprising the following steps:

[0007] Step 1: Increase the temperature of the aluminum ingot melting furnace, control the aluminum ingot melting furnace to melt the aluminum ingot, and adjust the melting temperature based on the real-time production of the aluminum liquid. When the real-time production reaches a specified value, control the melting temperature to remain unchanged until the real-time production decreases, and then increase the melting temperature. Based on the specific temperature control process, the aluminum ingot inside the aluminum ingot melting furnace is fully melted;

[0008] Step 2: After the aluminum liquid produced in the aluminum ingot smelting furnace is transferred to the temperature control furnace, the temperature inside the temperature control furnace is correlated and regulated, and the temperature control process is performed based on the temperature performance of different height areas in the temperature control furnace.

[0009] Furthermore, in step 1, the specific sub-steps of regulating the smelting temperature are:

[0010] S11, by adjusting the heating power of the aluminum ingot melting furnace, the internal temperature of the aluminum ingot melting furnace reaches the minimum melting temperature, the minimum melting temperature is the preset temperature, the flow rate of the aluminum liquid produced by the melting furnace is monitored during the melting cycle, the melting cycle is the preset cycle, the maximum flow rate value monitored during the melting cycle is confirmed and calibrated as LL, and it is confirmed whether this LL satisfies: LL>Y1, where Y1 is the preset value;

[0011] If it is satisfied, it is identified whether the aluminum liquid flow rate monitored at the end of the current smelting cycle is still greater than Y1. If it is still greater than Y1, it is continuously monitored until the aluminum liquid flow rate generated in real time is no greater than Y1 and a temperature control signal is generated;

[0012] If it is not satisfied, the heating power of the aluminum ingot melting furnace is increased to increase the heating temperature of the aluminum ingot melting furnace until the generated aluminum liquid flow rate is greater than Y1 and the heating temperature is kept unchanged. When the subsequently monitored aluminum liquid flow rate is not greater than Y1, a temperature control signal is generated;

[0013] S12, based on the generated temperature control signal, extract the aluminum liquid flow greater than Y1 in the first group of temperature control processes, and sort the aluminum liquid flow according to the time sequence, determine the sorting sequence, and then execute the second group of temperature control processes, so that the temperature of the aluminum ingot melting furnace is increased again until the generated aluminum liquid flow is greater than Y1, record the aluminum liquid flow L1 at the current moment and the aluminum liquid flow L2 of the next unit time, confirm the aluminum liquid difference: Cz1=L2-L1, and then identify the correlation difference between the first group of aluminum liquid flow and the second group of aluminum liquid flow from the sorting sequence: Zz1=XL2-XL1, where XL1 and XL2 are the aluminum liquid flows with the sorting names of the first group and the second group in the sorting sequence. If Cz1 and Zz1 meet: |Cz1-Zz1|≤Y2, where Y2 is the set standard value, if so, directly execute the current increased temperature to carry out aluminum ingot melting, until the real-time aluminum liquid flow is not greater than Y1, generate a temperature control signal, and execute the third group of temperature control processes;

[0014] If not met:

[0015] When Zz1<Cz1, the temperature is raised;

[0016] When Zz1>Cz1, the temperature is lowered;

[0017] And determine the aluminum liquid difference Cz2 between the second group of aluminum liquid flow and the third group of aluminum liquid flow, and then check the associated difference Zz2 with the associated difference between the aluminum liquid flow associated in the corresponding sorting sequence, until the corresponding difference generated by the increased or decreased temperature is satisfied and the temperature is kept unchanged, and then generate a temperature control signal when the real-time aluminum liquid flow is not greater than Y1 to execute the third group of temperature control process;

[0018] S13, during the specific execution of the third group of temperature control processes, the sorting sequence is re-determined based on the second group of temperature control processes, and the temperature control process is performed in the same manner as in step S12, and each subsequent different temperature control process is temperature controlled based on the sorting sequence of the previous group of temperature control processes, and the temperature increase is stopped when the increased temperature reaches the maximum melting temperature, and the maximum melting temperature is the preset temperature.

[0019] Furthermore, in step 2, the specific method of performing the temperature control process is:

[0020] S21, adjusting the heating power inside the temperature control furnace to a preset power, so that the temperature inside the temperature control furnace rises to a specified temperature, monitoring the temperature values ​​of different height areas in the temperature control furnace, and calibrating the temperature values ​​monitored at different height areas as WD k , where k represents different height areas, and the height differences between different height areas are all set values;

[0021] S22, the monitored groups of temperature values ​​WD k Perform standard deviation processing to determine its standard deviation Bc, and identify whether its standard deviation Bc satisfies: Bc>Y3, where Y3 is a preset value. If it satisfies, the temperature in the temperature control furnace is continuously increased until Bc≤Y3 and the heating temperature in the furnace is kept unchanged. If it does not satisfy, the original specified temperature is kept unchanged. If the temperature continues to rise and still cannot satisfy Bc≤Y3, an error signal is directly generated for display;

[0022] S23. When the temperature continues to rise to Bc≤Y3, identify the temperature values ​​WD monitored in different height areas. k Does it exist: WD k >Bz, if it exists, the corresponding height area is marked as high temperature area. If WD k ≤Bz, no calibration is performed;

[0023] Based on the determined high temperature area, the heating temperature in the furnace is reduced, and the reduction value J1 per unit time is recorded, and then the temperature reduction value J2 per unit time of this high temperature area is recorded, and the unit time is seconds;

[0024] If (WD k -Bz)÷J2>60, then the decrease of the heating temperature in the furnace is increased to (WD k -Bz)÷J2≤60, confirm the corresponding decrease range, when the temperature value in the high temperature area meets WD k Stop cooling when the temperature is ≤Bz, and keep the specific heating temperature unchanged after cooling;

[0025] If (WD k -Bz)÷J2≤60, confirm the corresponding decrease range, when the temperature value in the high temperature area meets WD k Stop cooling when ≤Bz, and keep the specific heating temperature unchanged after cooling.

[0026] The present invention provides a method for controlling the melting temperature of aluminum ingots. Compared with the prior art, the method has the following beneficial effects:

[0027] The present invention controls the temperature in the aluminum ingot smelting furnace step by step, executes a plurality of different temperature control processes, and the amount of aluminum liquid generated in each different temperature control process is relatively consistent, so as to ensure the overall smelting effect of the corresponding aluminum ingot. After the low-melting-point aluminum ingot is fully melted, part of the aluminum liquid can wrap other unmelted aluminum ingots, so that the high-melting-point aluminum ingot can be gradually melted in this state, and the overall effect of uniform melting can be achieved. In order to keep each group of smelting processes relatively consistent, the aluminum liquid is gradually melted based on the generation of aluminum liquid in the previous group of smelting processes, so as to achieve a better smelting effect.

[0028] When controlling the temperature of the temperature control furnace, in order to make the temperature associated with each different height area reach a state of lower temperature difference as much as possible, the temperature is first increased and stopped when the minimum temperature difference is reached. Then, it is identified whether the temperature of subsequent different associated areas exceeds the standard. Because the temperature exceeding the standard will have a relevant impact on the aluminum liquid and cause the purity of the aluminum liquid to change, it is necessary to control the temperature again to reduce the temperature after exceeding the standard so that the temperature in the corresponding temperature control furnace reaches the optimal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1 The present application provides a method for controlling the melting temperature of an aluminum ingot, comprising the following steps:

[0032] Step 1: Increase the temperature of the aluminum ingot melting furnace, control the aluminum ingot melting furnace to melt the aluminum ingots, and adjust the melting temperature based on the real-time production of aluminum liquid. When the real-time production reaches the specified value, control the melting temperature to remain unchanged until the real-time production decreases, and then increase the melting temperature. Based on the specific temperature control process, the aluminum ingots inside the aluminum ingot melting furnace are fully melted. Specifically, by adopting this melting temperature control method, after the temperature of the melting furnace is increased, the corresponding aluminum ingots will melt. In the actual melting process, During the process, if some aluminum ingots with low melting points have not been completely melted, the aluminum ingots with high melting points will also be melted due to the rapid temperature change. Then, due to the drastic temperature change, some aluminum ingots with low melting points will be burned, which will cause quality problems in the produced aluminum liquid. Therefore, in order to fully melt the aluminum ingots with different melting points in the smelting furnace, after some aluminum ingots are melted, their temperature is controlled at a constant temperature based on the data characteristics of the melting process, and then the subsequent temperature regulation is carried out to ensure the overall melting effect of the corresponding aluminum ingots;

[0033] The specific sub-steps for the associated regulation of the smelting temperature are as follows:

[0034] S11. By adjusting the heating power of the aluminum ingot melting furnace, the internal temperature of the aluminum ingot melting furnace reaches the minimum melting temperature. The minimum melting temperature is a preset temperature, which is prepared in advance by the operator based on experience. During the melting cycle, the flow rate of the aluminum liquid generated by the melting furnace is monitored (the aluminum ingot melting furnace will transmit the generated aluminum liquid to the corresponding temperature adjustment furnace. There is an associated transmission channel. Based on the fluid flow rate per unit time in the transmission channel, the relevant flow rate generated by the aluminum liquid per unit time can be determined. The monitored liquid flow rate is the real-time generation amount of the aluminum liquid). The melting cycle is a preset cycle, which is prepared in advance by the relevant operator based on experience. The maximum flow value monitored during this melting cycle is confirmed and calibrated as LL (the flow value is the specific flow rate generated per unit time, and the unit time is generally seconds), and it is confirmed whether this LL satisfies: LL>Y1, where Y1 is a preset value, and its specific value is prepared by the operator based on experience;

[0035] If it is satisfied, it is identified whether the aluminum liquid flow rate monitored at the end of the current smelting cycle is still greater than Y1. If it is still greater than Y1, it is continuously monitored until the aluminum liquid flow rate generated in real time is no greater than Y1 and a temperature control signal is generated;

[0036] If it is not satisfied, the heating power of the aluminum ingot melting furnace is increased to increase the heating temperature of the aluminum ingot melting furnace until the generated aluminum liquid flow rate is greater than Y1 and the heating temperature is kept unchanged. When the subsequently monitored aluminum liquid flow rate is not greater than Y1, a temperature control signal is generated;

[0037] S12. Based on the generated temperature control signal, extract the aluminum liquid flow greater than Y1 in the first group of temperature control processes, and sort the aluminum liquid flow according to the time sequence to determine the sorting sequence, and then execute the second group of temperature control processes to increase the temperature of the aluminum ingot smelting furnace again until the generated aluminum liquid flow is greater than Y1, record the aluminum liquid flow L1 at the current moment and the aluminum liquid flow L2 in the next unit time, confirm the aluminum liquid difference: Cz1=L2-L1, and then identify the correlation difference between the first group of aluminum liquid flow and the second group of aluminum liquid flow from the sorting sequence: Zz1=XL2-XL1, where XL1 and XL2 are For the aluminum liquid flow of the first and second groups in the sorting sequence, if Cz1 and Zz1 satisfy: |Cz1-Zz1|≤Y2, where Y2 is the set standard value, which is formulated by relevant operators based on experience. If the difference between the two differences is small, it means that the trends of the aluminum liquid generated by the first temperature control process and the second temperature control process are relatively close, so they can be directly executed to ensure the corresponding smelting effect. If it is satisfied, the current increased temperature is directly executed to melt the aluminum ingots, and the temperature control signal is generated when the real-time aluminum liquid flow is not greater than Y1 to execute the third group of temperature control processes;

[0038] If not met:

[0039] When Zz1<Cz1, the temperature is raised;

[0040] When Zz1>Cz1, the temperature is lowered;

[0041] And determine the aluminum liquid difference Cz2 between the second group of aluminum liquid flow and the third group of aluminum liquid flow, and then check the associated difference Zz2 with the associated difference between the aluminum liquid flow associated in the corresponding sorting sequence, until the corresponding difference generated by the increased or decreased temperature is satisfied and the temperature is kept unchanged, and then generate a temperature control signal when the real-time aluminum liquid flow is not greater than Y1 to execute the third group of temperature control process;

[0042] S13, during the specific execution of the third group of temperature control processes, the sorting sequence is re-determined based on the second group of temperature control processes, and the temperature control process is performed in the same manner as in step S12, and each subsequent different temperature control process is temperature-controlled based on the sorting sequence of the previous group of temperature control processes, and the temperature increase is stopped when the increased temperature reaches the maximum melting temperature. The maximum melting temperature is a preset temperature, which is prepared in advance by relevant operators based on experience, and is generally 705°;

[0043] Specifically, step one is aimed at the specific melting process of aluminum ingots. In order to ensure that there is no burning of aluminum ingots with different melting points, multiple different temperature control processes are performed, and the amount of aluminum liquid generated in each different temperature control process is relatively consistent to ensure the overall smelting effect of the corresponding aluminum ingots. Because the best state of aluminum ingot smelting is: after the low-melting-point aluminum ingot is fully melted, part of its aluminum liquid can wrap other unmelted aluminum ingots, then the high-melting-point aluminum ingot can be gradually melted in this state, and the overall effect of uniform smelting can be achieved. In order to keep each group of smelting processes relatively consistent, then based on the generation of aluminum liquid in the previous group of smelting processes, gradual melting is carried out to achieve a better smelting effect. Because different aluminum ingots are smelted, the specific contents of the internal aluminum ingots are not the same, so there is no benchmark for the smelting process. Therefore, this application adopts the aluminum liquid generation benchmark in the previous smelting process as the associated benchmark for the next group of aluminum liquids, so as to ensure the associated benchmark in the overall aluminum ingot smelting process.

[0044] For example, after the internal temperature of the aluminum ingot melting furnace is heated to 670°, the aluminum ingot inside is initially melted. During this melting stage, the maximum flow value generated meets the standard, so the associated sorting sequence can be determined from the aluminum liquid flow greater than Y1;

[0045] Subsequently, during the second temperature control process, the internal temperature is heated to 680°, and the aluminum liquid flow rate generated per unit time meets the requirement greater than Y1 again. Based on the sorting sequence generated during the first temperature control process, the aluminum liquid flow rates that appear successively during the second temperature control process are correlated and compared to identify whether the corresponding correlation difference meets the standard. If so, the temperature is directly executed until the second temperature control process ends. If not, the temperature is continuously raised until it meets the standard.

[0046] Similarly, the subsequent related temperature control processes are controlled and adjusted in turn to ensure the corresponding output process of the aluminum liquid.

[0047] Step 2: After the aluminum liquid produced in the aluminum ingot melting furnace is transferred to the temperature control furnace (because in some cases, the aluminum liquid produced will not be used immediately after production, so the corresponding temperature control furnace is required for short-term storage, and the aluminum liquid needs to be stored under temperature control during the storage process), the temperature inside the temperature control furnace is regulated and controlled. Based on the temperature performance of different height areas in the temperature control furnace, the temperature control process is performed to ensure that the aluminum liquid in each different area of ​​the temperature control furnace is in a good liquefied state;

[0048] Among them, the specific method of executing the temperature control process is:

[0049] S21. Adjust the heating power inside the temperature control furnace to a preset power (the preset power is prepared in advance by the relevant operator based on experience), so that the temperature inside the temperature control furnace rises to a specified temperature, monitor the temperature values ​​of different height areas in the temperature control furnace, and calibrate the temperature values ​​monitored at different height areas as WD k , where k represents different height zones, and the height differences between different height zones are all set values. The settings of different height zones are set in advance by relevant personnel, and their temperatures are monitored in real time by the associated infrared temperature detection sensors;

[0050] S22, the monitored groups of temperature values ​​WD k Perform standard deviation processing to determine the standard deviation Bc. The standard deviation processing method is: set k = 1, 2, ..., n, where n represents the total number of height zones, and set n groups of temperature values ​​WD k Perform mean processing to determine the associated mean Jz, and then use Determine the corresponding standard deviation Bc, and identify whether the standard deviation Bc satisfies: Bc>Y3, where Y3 is a preset value, and its specific value is determined by the operator based on experience. If it satisfies, the temperature in the temperature control furnace is continuously increased until Bc≤Y3 and the heating temperature in the furnace is kept unchanged. If it does not meet the requirement, the original specified temperature is kept unchanged. If the temperature continues to rise and still cannot meet Bc≤Y3, an error signal is directly generated for display, indicating that the temperature control furnace itself is abnormal and needs to be manually associated with detection and processing;

[0051] S23. When the temperature continues to rise to Bc≤Y3, identify the temperature values ​​WD monitored in different height areas. k Does it exist: WD k >Bz, if it exists, the corresponding height area is calibrated as the high temperature area, otherwise, no calibration is performed;

[0052] Based on the determined high temperature area (usually the lowest area), the heating temperature in the furnace is reduced, and the reduction value J1 per unit time is recorded, and then the temperature reduction value J2 per unit time of this high temperature area is recorded. The unit time is seconds. If (WD k -Bz)÷J2>60, then the decrease of the heating temperature in the furnace is increased to (WD k -Bz)÷J2≤60, confirm the corresponding decrease range, when the temperature value in the high temperature area meets WD k Stop cooling when the temperature is ≤Bz, and keep the specific heating temperature unchanged after cooling;

[0053] Specifically, in order to make the temperature associated with each different height area reach a state of lower temperature difference as much as possible, the temperature is first increased and stopped when the minimum temperature difference is reached, and then it is identified whether the temperature of subsequent different associated areas exceeds the standard. Because the temperature exceeding the standard will have a relevant impact on the aluminum liquid and cause the purity of the aluminum liquid to change, it is necessary to control the temperature again to reduce the temperature after exceeding the standard so that the temperature in the corresponding temperature control furnace reaches the optimal state.

[0054] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0055] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A method for controlling the melting temperature of aluminum ingots, characterized in that: The following steps are involved: Step 1: Increase the temperature of the aluminum ingot melting furnace, control the aluminum ingot melting furnace to melt the aluminum ingot, and adjust the melting temperature based on the real-time production of the aluminum liquid. When the real-time production reaches the specified value, control the melting temperature to remain unchanged until the real-time production decreases, and then increase the melting temperature. Based on the specific temperature control process, the aluminum ingot inside the aluminum ingot melting furnace is fully melted. The specific sub-steps are: S11, by adjusting the heating power of the aluminum ingot melting furnace, the internal temperature of the aluminum ingot melting furnace reaches the minimum melting temperature, the minimum melting temperature is the preset temperature, the flow rate of the aluminum liquid produced by the melting furnace is monitored during the melting cycle, the melting cycle is the preset cycle, the maximum flow rate value monitored during the melting cycle is confirmed and calibrated as LL, and it is confirmed whether this LL satisfies: LL>Y1, where Y1 is the preset value; If it is satisfied, it is identified whether the aluminum liquid flow rate monitored at the end of the current smelting cycle is still greater than Y1. If it is still greater than Y1, it is continuously monitored until the aluminum liquid flow rate generated in real time is no greater than Y1 and a temperature control signal is generated; If it is not satisfied, the heating power of the aluminum ingot melting furnace is increased to increase the heating temperature of the aluminum ingot melting furnace until the generated aluminum liquid flow rate is greater than Y1 and the heating temperature is kept unchanged. When the subsequently monitored aluminum liquid flow rate is not greater than Y1, a temperature control signal is generated; S12, based on the generated temperature control signal, extract the aluminum liquid flow greater than Y1 in the first group of temperature control processes, and sort the aluminum liquid flow according to the time sequence, determine the sorting sequence, and then execute the second group of temperature control processes, so that the temperature of the aluminum ingot melting furnace is increased again until the generated aluminum liquid flow is greater than Y1, record the aluminum liquid flow L1 at the current moment and the aluminum liquid flow L2 of the next unit time, confirm the aluminum liquid difference: Cz1 = L2-L1, and then identify the correlation difference between the first group of aluminum liquid flow and the second group of aluminum liquid flow from the sorting sequence: Zz1 = XL2-XL1, where XL1 and XL2 are the aluminum liquid flows with the sorting names of the first group and the second group in the sorting sequence. If Cz1 and Zz1 satisfy: |Cz1-Zz1|≤Y2, where Y2 is the set standard value, if so, directly execute the current increased temperature to perform aluminum ingot melting, until the real-time aluminum liquid flow is not greater than Y1, generate a temperature control signal, and execute the third group of temperature control processes; If not met: When Zz1<Cz1, the temperature is raised; When Zz1>Cz1, the temperature is lowered; And determine the aluminum liquid difference Cz2 between the second group of aluminum liquid flow and the third group of aluminum liquid flow, and then check the associated difference Zz2 with the associated difference between the aluminum liquid flow associated in the corresponding sorting sequence, until the corresponding difference generated by the increased or decreased temperature is satisfied and the temperature is kept unchanged, and then generate a temperature control signal when the real-time aluminum liquid flow is not greater than Y1 to execute the third group of temperature control process; S13, during the specific execution of the third group of temperature control processes, the sorting sequence is re-determined based on the second group of temperature control processes, and the temperature control process is performed in the same manner as in step S12, and each subsequent different temperature control process is temperature controlled based on the sorting sequence of the previous group of temperature control processes, and the temperature increase is stopped when the increased temperature reaches the maximum melting temperature, and the maximum melting temperature is the preset temperature; Step 2: After the aluminum liquid produced in the aluminum ingot smelting furnace is transferred to the temperature control furnace, the temperature inside the temperature control furnace is correlated and regulated, and the temperature control process is performed based on the temperature performance of different height areas in the temperature control furnace.

2. The method for controlling the melting temperature of aluminum ingots according to claim 1, characterized in that: In step 2, the specific method of performing the temperature control process is: S21, adjusting the heating power inside the temperature control furnace to a preset power, so that the temperature inside the temperature control furnace rises to a specified temperature, monitoring the temperature values ​​of different height areas in the temperature control furnace, and calibrating the temperature values ​​monitored at different height areas as WD k , where k represents different height areas, and the height differences between different height areas are all set values; S22, the monitored groups of temperature values ​​WD k Perform standard deviation processing to determine its standard deviation Bc, and identify whether its standard deviation Bc satisfies: Bc>Y3, where Y3 is a preset value. If it satisfies, the temperature in the temperature control furnace is continuously increased until Bc≤Y3 and the heating temperature in the furnace is kept unchanged. If it does not satisfy, the original specified temperature is kept unchanged. If the temperature continues to rise and still cannot satisfy Bc≤Y3, an error signal is directly generated for display; S23. When the temperature continues to rise to Bc≤Y3, identify the temperature values ​​WD monitored in different height areas. k Does it exist: WD k >Bz, if it exists, the corresponding height area is marked as high temperature area; Based on the determined high temperature area, the heating temperature in the furnace is reduced, and the reduction value J1 per unit time is recorded, and then the temperature reduction value J2 per unit time of this high temperature area is recorded, and the unit time is seconds; If (WD k -Bz)÷J2>60, then the temperature drop in the furnace is increased to (WD k -Bz)÷J2≤60, confirm the corresponding decrease range, when the temperature value in the high temperature area meets WD k Stop cooling when the temperature is ≤Bz, and keep the specific heating temperature unchanged after cooling; If (WD k -Bz)÷J2≤60, confirm the corresponding decrease range, when the temperature value in the high temperature area meets WD k Stop cooling when ≤Bz, and keep the specific heating temperature unchanged after cooling.

3. The method for controlling the melting temperature of aluminum ingots according to claim 2, characterized in that: In step S23, if WD k ≤Bz, no calibration is performed.

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