A heat treatment furnace, temperature control method, and storage medium thereof

Abstract

The application relates to the field of heat treatment, in particular to a heat treatment furnace, a temperature control method and a storage medium thereof, which comprises a high-temperature furnace body, a silicon-controlled regulating circuit, an electric thermocouple and an input display module, the number of the electric thermocouples and the silicon-controlled regulating circuit is at least two, a plurality of the electric thermocouples correspondingly receive control of different silicon-controlled regulating circuits, at least one of the electric thermocouples in the plurality of electric thermocouples receives a preset adjustment signal output by the silicon-controlled regulating circuit to adjust the temperature in the high-temperature furnace body, at least one of the electric thermocouples in the plurality of electric thermocouples is used for detecting the temperature in the high-temperature furnace body to obtain detection temperature data output to the silicon-controlled regulating circuit, and the input display module is used for inputting the adjustment signal and displaying the detection temperature data for a user to view. The application has the effect of improving the control precision of the temperature.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heat treatment, in particular to a heat treatment furnace, a temperature control method and a storage medium thereof. BACKGROUND

[0002] With the development and popularization of technology, memory metals are becoming more and more common in people's lives, such as springs, satellites, etc., and the memory function of memory metals is often related to temperature, such as high-temperature reduction, that is, under high-temperature conditions, memory metals undergo reduction. However, the temperature control precision of existing heat treatment furnaces is low, and the temperature fluctuates greatly, which makes it difficult to meet the reduction requirements of memory metals. SUMMARY

[0003] In order to improve the problem of low temperature control precision and large temperature fluctuation of the existing heat treatment furnace, the present application provides a heat treatment furnace, a temperature control method and a storage medium thereof.

[0004] The heat treatment furnace provided by the present application adopts the following technical scheme:

[0005] A heat treatment furnace, comprising a high-temperature furnace body, a silicon-controlled regulating circuit, an electric thermocouple and an input display module, the number of the electric thermocouples and the silicon-controlled regulating circuit is at least two, a plurality of the electric thermocouples correspondingly receive control from different silicon-controlled regulating circuits, at least one of the electric thermocouples in the plurality of electric thermocouples receives a preset adjustment signal output by the silicon-controlled regulating circuit to adjust the temperature in the high-temperature furnace body, and at least one of the electric thermocouples in the plurality of electric thermocouples is used to detect the temperature in the high-temperature furnace body to obtain detection temperature data output to the silicon-controlled regulating circuit, and the input display module is used for inputting the adjustment signal by the user and displaying the detection temperature data to the user for viewing.

[0006] By adopting the above technical scheme, temperature detection and temperature adjustment are respectively performed by different electric thermocouples, which greatly improves the temperature control precision.

[0007] Optionally, a turnover driving member is arranged on the high-temperature furnace body, a rotating shaft of the turnover driving member extends into the high-temperature furnace body, and a turnover paddle for turning the material is arranged on the rotating shaft of the turnover driving member.

[0008] By adopting the above technical scheme, the material in the high-temperature furnace body is turned to increase convection and ensure uniform heating of the material.

[0009] Optionally, a stainless steel liner is covered on the inner wall of the high-temperature furnace body.

[0010] By adopting the above technical scheme, a protection effect is achieved to prevent oxidation.

[0011] The application provides a temperature control method of a heat treatment furnace, which adopts the following technical scheme:

[0012] A temperature control method of a heat treatment furnace comprises the following steps:

[0013] Obtaining the detection temperature data;

[0014] Determining temperature adjustment data by the detection temperature data and a preset heat treatment temperature threshold value;

[0015] Determining the adjustment signal by the temperature adjustment data and a preset temperature adjustment threshold value and outputting.

[0016] By adopting the above technical scheme, the temperature is automatically adjusted to a temperature condition sufficient to meet the reduction requirements of the material of the memory metal, which is convenient, fast and efficient.

[0017] Optionally, the method comprises the following steps:

[0018] Obtaining timing data, and the number of the detection temperature data obtained is multiple;

[0019] Determining a temperature deviation value by the multiple detection temperature data;

[0020] Determining temperature unevenness coordinate data by the temperature deviation value, the timing data and a preset temperature measurement coordinate threshold value;

[0021] Determining a turning signal by the temperature unevenness coordinate data, a preset temperature unevenness threshold value, the adjustment signal and a preset turning threshold value and outputting.

[0022] By adopting the above technical scheme, when temperature unevenness occurs in the high-temperature furnace body, the temperature or the turning speed is automatically adjusted, the temperature is uniform, the material is uniformly heated, and the processing effect is improved.

[0023] Optionally, the method comprises the following steps:

[0024] Determining temperature rise breakthrough data by the turning signal, the adjustment signal, the original temperature unevenness coordinate data, new temperature unevenness coordinate data and a preset temperature rise threshold value;

[0025] Determining new adjustment signal by the temperature rise breakthrough data and the temperature unevenness coordinate data and outputting;

[0026] Obtaining the temperature unevenness coordinate data again, determining correction data by the new temperature unevenness coordinate data and the original temperature unevenness coordinate data;

[0027] Determining test temperature rise data by the temperature unevenness coordinate data, the correction data, the heat treatment temperature threshold value and a preset variable coefficient;

[0028] The new adjustment signal is determined and output by replacing the temperature rise breakthrough data with the test temperature rise data, until the temperature unevenness coordinate data is within the range of the temperature unevenness threshold.

[0029] By adopting the above technical solution, the adjustment of uniform heating can be made more precise.

[0030] Optional, including:

[0031] Obtain the energy-saving mode signal;

[0032] Low energy consumption data is determined by the test temperature rise data, the tumbling signal, the preset heating energy consumption threshold, and the preset tumbling energy consumption threshold.

[0033] A new flipping signal or new test temperature rise data is determined by the low energy consumption data, the flipping signal, and the test temperature rise data.

[0034] A new flipping signal or new test temperature rise data is determined by the low energy consumption data, the test temperature rise data, the flipping signal, and a preset switching threshold.

[0035] By adopting the above technical solution, the energy consumption of the heating process is reduced, thus saving energy.

[0036] This application provides a computer-readable storage medium, which adopts the following technical solution:

[0037] A computer-readable storage medium storing a computer program capable of being loaded by a processor and executed a temperature control method for a heat treatment furnace.

[0038] By adopting the above technical solution, computer programs are stored using computer-readable storage media.

[0039] In summary, this application includes at least one of the following beneficial technical effects:

[0040] 1. It greatly improves the accuracy of temperature control.

[0041] 2. Ensure that the material is heated evenly. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of a heat treatment furnace in Embodiment 1 of this application.

[0043] Figure 2 This is a schematic flowchart of a temperature control method for a heat treatment furnace according to Embodiment 2 of this application.

[0044] Figure 3 This is a flowchart illustrating steps S2-S23.

[0045] Figure 4 is a flowchart of steps S3-S34.

[0046] Figure 5 is a flowchart of steps S4-S43.

[0047] Reference signs: 1, high-temperature furnace body; 11, turning driving member; 12, turning paddle; 2, silicon-controlled regulating circuit; 3, thermocouple; 4, input display module. DETAILED DESCRIPTION

[0048] The following will be described in detail in combination with the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0049] Embodiment 1 of the present application discloses a heat treatment furnace. Referring to Figure 1 , the heat treatment furnace comprises a high-temperature furnace body 1, a silicon-controlled regulating circuit 2, a thermocouple 3, and an input display module 4. The number of the thermocouples 3 and the silicon-controlled regulating circuits 2 is at least two. Among the plurality of thermocouples 3, at least one thermocouple 3 is a device with temperature measurement function, such as a thermistor, for detecting the temperature in the high-temperature furnace body 1 to obtain detection temperature data and output the detection temperature data to the silicon-controlled regulating circuit 2; and at least one thermocouple 3 is a device with temperature adjustment function, such as a resistance wire, for receiving a preset adjustment signal output by the silicon-controlled regulating circuit 2 to adjust the temperature in the high-temperature furnace body 1. The temperature collection end or the temperature control end of the thermocouple 3 is in the high-temperature furnace body 1. The plurality of thermocouples 3 respectively correspond to different silicon-controlled regulating circuits 2 for receiving control, that is, the silicon-controlled regulating circuit 2 and the thermocouple 3 are in one-to-one correspondence for control.

[0050] Referring to Figure 1 , the input display module 4 can adopt a digital display device, such as a combination of a display screen and a keyboard, or directly adopt a touch screen. The input display module 4 is used for inputting an adjustment signal to the silicon-controlled regulating circuit 2 by a user and displaying detection temperature data to the user for viewing. The silicon-controlled regulating circuit 2 or the input display module 4 comprises at least one processor and a database. The database is used for storing various threshold data, such as temperature adjustment threshold, heat treatment temperature threshold, and other threshold data. The processor receives detection temperature data and an energy-saving mode signal, and calls corresponding threshold data from the database, and outputs an adjustment signal after data calculation.

[0051] The processor can include a central processing unit (CPU) or a micro processing unit (MPU) or a host system built with CPU or MPU as the core, including hardware or software. After the meter has the processor, people can freely control the meter by programming, so that it runs according to people's will. The processor can control local meter, remote meter, remote communication, etc. through internal protocol. Internal protocol generally refers to all protocols for realizing mutual communication or linkage within the same meter or within the same system, including: part or all of human-computer interaction protocol, software / hardware (interface) protocol, chip bus (C-Bus) protocol, internal bus (I-Bus) protocol, etc. With the development of integrated circuit technology, some of the external bus (E-Bus) protocols are also included in the internal protocol after the external bus (E-Bus) is integrated into the chip.

[0052] Referring to Figure 1 The high-temperature furnace body 1 is fixedly connected with a turnover driving member 11. The turnover driving member 11 is a high-temperature-resistant motor. The rotating shaft of the turnover driving member 11 penetrates the side wall of the high-temperature furnace body 1 and extends into the high-temperature furnace body 1. The turnover driving member 11 is fixedly connected with a turnover paddle 12 for turning over the material on the rotating shaft in the high-temperature furnace body 1, so as to turn over the material in the high-temperature furnace body 1. The inner wall of the high-temperature furnace body 1 is covered with a stainless steel liner 13. The high-temperature furnace body 1 is filled with inert gas, such as argon, to prevent the material from being oxidized.

[0053] The implementation principle of the heat treatment furnace in the embodiment 1 is as follows: temperature detection is performed by at least one electric heating element 3 to obtain detection temperature data, which is displayed to the user by a thyristor adjusting circuit 2 and an input display module 4. Then, an adjustment signal is output to other electric heating elements 3 by the thyristor adjusting circuit 2, and temperature adjustment control is performed by the other electric heating elements 3. At the same time, the turnover driving member 11 is controlled to rotate by outputting a turnover signal to rotate the rotating shaft to turn over the material.

[0054] Embodiment 2

[0055] The embodiment 2 of the present application discloses a temperature control method of a heat treatment furnace. Referring to Figure 2 The temperature control method of the heat treatment furnace includes the following steps:

[0056] S1, obtaining detection temperature data;

[0057] S11, determining temperature adjustment data by the detection temperature data and a preset heat treatment temperature threshold value;

[0058] S12, determining an adjustment signal by the temperature adjustment data and a preset temperature adjustment threshold value and outputting the adjustment signal.

[0059] In detail, the detection temperature data is collected by the temperature detection function of the thermocouple 3 in the high-temperature furnace body 1, the heat treatment temperature threshold is the temperature that theoretically meets the reduction requirement of the memory metal material, the collected detection temperature data is compared with the heat treatment temperature threshold, if the detection temperature data meets the requirement of the heat treatment temperature threshold, it means that the temperature in the high-temperature furnace body 1 meets the reduction processing condition of the material, and no additional adjustment is needed; if the detection temperature data does not meet the requirement of the heat treatment temperature threshold, it means that the temperature in the high-temperature furnace body 1 does not meet the reduction processing condition of the material, at this time, the material in the high-temperature furnace body 1 cannot be fully reduced, so the temperature in the high-temperature furnace body 1 needs to be increased to the heat treatment temperature threshold, and the difference between the detection temperature data and the heat treatment temperature threshold is the temperature data that needs to be increased, that is, the temperature adjustment data; the temperature adjustment threshold is the corresponding relationship formula of the working power of the temperature adjustment function of the thermocouple 3 and the temperature, for example, 100W power generates heat at a speed of a, 1000W power generates heat at a speed of b, 1000W is ten times of 100W, but b is not 10 times of a, and the relationship formula between them is the temperature adjustment threshold, and the temperature adjustment data is associated with the temperature adjustment threshold, so that the current voltage power needs to be adjusted to how much, which is the adjustment signal.

[0060] With reference to Figure 3 Further comprising the following steps:

[0061] S2, acquiring timing data, the number of detection temperature data acquired is multiple;

[0062] S21, determining a temperature deviation value by the multiple detection temperature data;

[0063] S22, determining temperature uneven coordinate data by the temperature deviation value, the timing data and the preset temperature measurement coordinate threshold;

[0064] S23, determining a turning signal by the temperature uneven coordinate data, the preset temperature uneven threshold, the adjustment signal and the preset turning threshold and outputting.

[0065] In detail, the plurality of detection temperature data are detected by the plurality of thermocouples 3 at different positions, and the difference value is obtained by comparing and adding or subtracting the detection temperature data obtained by the adjacent thermocouples 3 at the same time according to the timing data, which is the temperature deviation value; the temperature measurement coordinate threshold value is the coordinate position of the thermocouple 3 corresponding to each detection temperature data, and the coordinate position of the lowest temperature can be obtained in combination with the temperature deviation value, for example, the temperature deviation value of the x1 coordinate is-2℃, the temperature deviation value of the x2 coordinate is-5℃, and the temperature deviation value of the x3 coordinate is-1℃, so the x2 coordinate is the temperature uneven coordinate data, and the temperature uneven threshold value is the threshold value of the temperature deviation value for determining whether adjustment is needed, that is, when the temperature deviation value exceeds the range of the temperature uneven threshold value, it indicates that the temperature is too uneven at this position, which will affect the heating of the material in the high-temperature furnace body 1, and adjustment is needed, and the turning threshold value is the degree of unevenness and the turning power required for correction, for example, the temperature uneven threshold value is set to ±3℃, the temperature deviation value of the x2 coordinate is-5℃, and the temperature to be adjusted is 2℃, if the turning threshold value is a*C, a is a coefficient, and C is the temperature to be adjusted, then the turning signal obtained at this time is 2a, and when the temperature indicated by the adjustment signal is above the heat treatment temperature threshold value, the turning signal is output to turn to make the temperature more uniform.

[0066] Referring to Figure 4 Further comprising the following steps:

[0067] S3, determining the temperature rise breakthrough data by the turning signal, the adjustment signal, the original temperature uneven coordinate data, the new temperature uneven coordinate data, and the preset test temperature rise threshold value;

[0068] S31, determining the new adjustment signal by the temperature rise breakthrough data and the temperature uneven coordinate data and outputting;

[0069] S32, obtaining the temperature uneven coordinate data again, determining the correction data by the new temperature uneven coordinate data and the original temperature uneven coordinate data;

[0070] S33, determining the test temperature rise data by the temperature uneven coordinate data, the correction data, the heat treatment temperature threshold value, and the preset variable coefficient;

[0071] S34, determining the new adjustment signal by replacing the temperature rise breakthrough data with the test temperature rise data and outputting, until the temperature uneven coordinate data is within the range of the temperature uneven threshold value.

[0072] Detailed: After adjusting by the original temperature uneven coordinate data, new temperature uneven coordinate data is obtained again, and if it is difficult to reduce the temperature deviation value by only turning the signal, temperature adjustment is needed, that is, the temperature uneven coordinate data near the electric heating element 3 with heating function is warmed up, and the temperature that has been in the heat treatment temperature threshold range is increased again and will be higher than the heat treatment temperature threshold. This is the temperature rise breakthrough data, which usually represents additional energy consumption. That is, when the temperature is at the heat treatment temperature threshold, the material can be reduced, but due to uneven heating, the temperature needs to be increased to exceed the heat treatment temperature threshold, which means more power is consumed to achieve reduction. The temperature rise breakthrough data combined with the temperature uneven coordinate data obtains the adjustment signal of the temperature uneven coordinate data near the electric heating element 3 and outputs the control; then the temperature uneven coordinate data is obtained again, and the correction data is obtained by the temperature deviation value in the temperature uneven coordinate data this time and the temperature deviation value in the temperature uneven coordinate data obtained last time. For example, the temperature deviation value this time is -4°C, and the temperature deviation value last time is -4.5°C, so the correction data is 0.5°C. Then compare the detection temperature data in the temperature uneven coordinate data with the heat treatment temperature threshold to obtain the difference. Combine the difference with the correction data and the variable coefficient to roughly estimate how much the temperature needs to be increased. Turn the material according to the turning signal to make the temperature deviation value at this place correct to the range of the temperature uneven threshold, or make the detection temperature data at this place in the range of the heat treatment temperature threshold. This is the test temperature rise data, and then return to step S32 again to repeat the steps until the temperature deviation value of the temperature uneven coordinate data is in the range of the temperature uneven threshold.

[0073] Reference Figure 5 It also includes the following steps:

[0074] S4, obtain an energy-saving mode signal;

[0075] S41, determine low-energy data by test temperature rise data, turning signal, preset heating energy consumption threshold and preset turning energy consumption threshold;

[0076] S42, determine new turning signal or new test temperature rise data by low-energy data, turning signal and test temperature rise data;

[0077] S43, determine new turning signal or new test temperature rise data by low-energy data, test temperature rise data, turning signal and preset switching threshold.

[0078] In detail, when the user inputs the energy-saving mode signal, the test temperature rise data is calculated with the heating energy consumption threshold value to obtain how much electric energy is needed if the temperature continues to rise, the electric energy is calculated with the temperature deviation value that can be reduced to obtain how many units of electric energy are needed to correct one unit, the flipping signal is calculated with the flipping energy consumption threshold value to obtain how much electric energy is needed if the flipping power is increased, the electric energy is calculated with the temperature deviation value that can be reduced to obtain how many units of electric energy are needed to correct one unit, the two are compared to obtain the same effect, and the energy consumption is smaller, which is the low energy consumption data, so as to determine whether to adjust the temperature or increase the flipping power, and whether to output the flipping signal or test the temperature rise data. When the flipping signal or the test temperature rise data continues to adjust, the energy consumption becomes higher and higher, until the energy consumption increases to exceed the energy consumption of another way plus the switching threshold value, at this time, the adjustment mode is changed, for example, the flipping signal energy consumption speed is q, and the test temperature rise data energy consumption speed is 2q, at this time, the flipping signal power is increased to reduce the temperature deviation value. When the flipping signal continues to increase, the energy consumption and the ratio of the effect continue to increase, if the switching threshold value is 0.5q, when the flipping signal energy consumption speed increases to 2.5q, that is, greater than 2q+0.5q of the test temperature rise data, the adjustment of the flipping signal is stopped, and the temperature is switched to be increased, that is, the temperature deviation value is adjusted by the test temperature rise data.

[0079] Embodiment 2 of the present application discloses a computer readable storage medium. The computer readable storage medium stores a computer program capable of being loaded and executed by a processor to process a temperature control method of a heat treatment furnace.

[0080] The computer readable storage medium includes, for example, a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0081] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A heat treatment furnace characterized by: The application relates to a high-temperature furnace body (1), a silicon-controlled regulating circuit (2), a plurality of electric thermocouples (3) and an input display module (4), wherein the number of the electric thermocouples (3) and the silicon-controlled regulating circuit (2) is at least two, a plurality of the electric thermocouples (3) respectively correspond to different silicon-controlled regulating circuits (2) and receive control, at least one of the electric thermocouples (3) receives a preset adjustment signal output by the silicon-controlled regulating circuit (2) to adjust the temperature in the high-temperature furnace body (1), at least one of the electric thermocouples (3) is used for detecting the temperature in the high-temperature furnace body (1) and outputs detection temperature data to the silicon-controlled regulating circuit (2), and the input display module (4) is used for inputting the adjustment signal and displaying the detection temperature data to a user. At least two electric thermocouples (3) include at least one first electric thermocouple used for detecting temperature and at least one second electric thermocouple used for adjusting temperature, and the at least two electric thermocouples (3) are arranged at different spatial positions in the high-temperature furnace body (1) to realize independent partition detection and independent partition adjustment of a three-dimensional space in the high-temperature furnace body (1) through corresponding silicon-controlled regulating circuits (2). The detection temperature data is acquired. The temperature adjustment data is determined through the detection temperature data and a preset heat treatment temperature threshold value. The adjustment signal is determined through the temperature adjustment data and a preset temperature adjustment threshold value and is output. Timing data is acquired, and the number of the acquired detection temperature data is multiple. A temperature deviation value is determined through the multiple detection temperature data. Temperature uneven coordinate data is determined through the temperature deviation value, the timing data and a preset temperature measurement coordinate threshold value. A turning signal is determined through the temperature uneven coordinate data, a preset temperature uneven threshold value, the adjustment signal and a preset turning threshold value and is output.

2. A heat treatment furnace as claimed in claim 1, characterized in that: A turning driving element (11) is arranged on the high-temperature furnace body (1), the rotating shaft of the turning driving element (11) extends into the high-temperature furnace body (1), and a turning paddle (12) for turning materials is arranged on the rotating shaft of the turning driving element (11).

3. A heat treatment furnace as claimed in claim 1, characterized in that: A stainless steel inner container (13) is arranged on the inner wall of the high-temperature furnace body (1).

4. The temperature control method of a heat treatment furnace according to claim 1, wherein The application further relates to a method for controlling the high-temperature furnace body (1). The temperature rising breakthrough data is determined through the turning signal, the adjustment signal, the original temperature uneven coordinate data, the new temperature uneven coordinate data and a preset test temperature rising threshold value. The new adjustment signal is determined through the temperature rising breakthrough data and the temperature uneven coordinate data and is output. The temperature uneven coordinate data is acquired again, the correction data is determined through the new temperature uneven coordinate data and the original temperature uneven coordinate data. The test temperature rising data is determined through the temperature uneven coordinate data, the correction data, the heat treatment temperature threshold value and a preset variable coefficient. The new adjustment signal is determined through the test temperature rising data replacing the temperature rising breakthrough data and is output until the temperature uneven coordinate data is within the range of the temperature uneven threshold value.

5. The temperature control method of a heat treatment furnace according to claim 4, wherein The energy-saving mode signal is acquired. ​ determining low energy consumption data from the test temperature rise data, the turnover signal, a preset heating energy consumption threshold and a preset turnover energy consumption threshold; determining new turnover signal or new test temperature rise data from the low energy consumption data, the turnover signal and the test temperature rise data; determining new turnover signal or new test temperature rise data from the low energy consumption data, the test temperature rise data, the turnover signal and a preset switching threshold.

6. A computer-readable storage medium, characterized in that, a computer program capable of being loaded and executed by a processor to perform the temperature control method of any one of the heat treatment furnace of claims 4 to 5.

Images