Mechanical part heat absorption rate detection control system

Abstract

The invention discloses a mechanical part heat absorptivity detection control system, which belongs to the field of machining detection, and comprises a measurement module, a part fixing module, an operation driving control module, a control module, a control module and a control module, and is characterized in that the measurement module measures the area of a heating surface of a target part and the thickness of the target part; the part fixing module is conveyed into the sealing box module, the part back face of a target part abuts against the heat sensing module, the heat source control module is operated, the heat source heating module is started, the target part is preheated, and the calculation display module obtains data collected by the heat sensing module in real time. The output power of the heat source heating module is increased through the heat source control module, calculation is carried out through the calculation display module, and the heat resistance coefficient of the target part is obtained, so that the error of the heat resistance coefficient calculation result caused by lateral heat loss can be reduced, and the accuracy of the heat absorption detection result of the mechanical part is improved; and the heat absorption measurement of the mechanical part is more efficient and convenient.

Description

Technical Field

[0001] The invention belongs to the field of mechanical processing detection, and in particular relates to a detection and control system for heat absorption rate of mechanical parts. Background Art

[0002] Mechanical parts, also known as mechanical elements, are single, inseparable parts that make up machinery and machines. They are the basic units of machinery. The connections between mechanical parts include: threaded connection, wedge connection, pin connection, key connection, spline connection, interference fit connection, elastic ring connection, riveting, welding and adhesive connection, etc. The transmission motion between mechanical parts includes: mechanical transmission such as belt drive, friction wheel drive, key drive, harmonic drive, gear drive, rope drive and screw drive, and also includes: the corresponding shaft system parts movement such as transmission shaft, coupling, clutch and brake.

[0003] Many mechanical parts need to perform operations such as rotation or friction. During the operation of mechanical parts, corresponding heat will be generated. The heat resistance and heat absorption rate of mechanical parts are one of the indicators to measure the comprehensive performance of mechanical parts. How to perform corresponding heat absorption detection on mechanical parts has become a problem that needs to be solved.

[0004] The existing detection of the heat resistance coefficient of mechanical parts mostly uses laser heating first, and then obtains the heat resistance coefficient of the mechanical parts through measurement and calculation. However, during the laser heating process, the heat flux density on the mechanical parts is in a one-dimensional form, which is often not the case in actual testing. There is lateral heat loss inside the target part caused by two-dimensional heat transfer. This lateral heat loss will cause errors in the calculation results of the heat resistance coefficient, thereby reducing the accuracy of the heat absorption detection results of the mechanical parts. Summary of the invention

[0005] Problem to be solved

[0006] Aiming at the problem that there is lateral heat loss caused by two-dimensional heat transfer inside the target part, and this lateral heat loss may cause errors in the calculation results of the heat resistance coefficient, the present invention provides a mechanical part heat absorption rate detection and control system.

[0007] Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A mechanical parts heat absorption rate detection and control system comprises: a heating control unit, a parts operation unit, a detection and analysis unit and a signal transmission unit; the heating control unit, the parts operation unit and the detection and analysis unit are all coupled to the signal transmission unit.

[0010] Preferably, the heating control unit comprises a sealing box module, a heat source heating module and a heat source control module; wherein the sealing box module is used for sealing and protecting the heating and detection of the target part;

[0011] The heat source heating module is installed in the sealed box module and is used to provide heat to the target part;

[0012] The heat source control module is installed outside the sealed box module and coupled to the heat source heating module, and is used to perform signal control on the heat source heating module to control the switch and output efficiency of the heat source heating module.

[0013] Preferably, the part operation unit includes a part fixing module and a driving control module;

[0014] Wherein, the part fixing module is used to clamp and fix the target part;

[0015] The driving control module is coupled to the part fixing module and is used to control the part fixing module and the target part to enter and exit the sealing box module.

[0016] Preferably, the detection and analysis unit includes a heat sensing module and a calculation and display module;

[0017] Wherein, the heat sensing module is fixedly installed in the sealing box module, and is used to abut against the back of the target part to detect the temperature of the back of the target part;

[0018] The calculation and display module is coupled to the heat sensing module, and is used to calculate the heat resistance coefficient of the target part by combining the temperature value obtained by the heat sensing module and the output efficiency of the heat source heating module, and display it.

[0019] Furthermore, the heat source heating module adopts a flash method to heat the front surface of the target part through laser pulses, and the front surface of the target part is the heated surface.

[0020] Furthermore, when the heating spot area of ​​the heat source heating module is greater than or equal to the heating surface area of ​​the target part, the calculation formula of the heat resistance coefficient of the target part by the calculation and display module is as follows:

[0021] α=1.37L 2 / 9π 2 t 0.5)

[0022] c=Q / (T max ρL )

[0023] λ=α×c×ρ

[0024] Where α is the thermal diffusion coefficient, unit: mm 2 / s; L represents the thickness of the target part, unit: m; t 0.5 It represents half of the time required for the temperature rise on the back of the target part to reach the maximum value, in seconds; c represents the specific heat capacity, in J / (kg*K); Q represents the heat flux absorbed by the target part, in W / m 2 ; T max Indicates the maximum temperature rise on the back of the target part, in K; ρ represents the density of the target part, in kg / m 3 ; λ represents the heat resistance coefficient of the target part, unit is W / (mK).

[0025] Furthermore, when the heating spot area of ​​the heat source heating module is smaller than the heating surface area of ​​the target part, the calculation formula of the heat resistance coefficient of the target part by the calculation and display module is as follows:

[0026] α=1.37L 2 / (π 2 t 0.5 )

[0027] c=Q / (T max ρL )

[0028]

[0029] Wherein, T is the current temperature of the back side of the target part, t is the time, and s is the area of ​​the heated surface of the target part.

[0030] Furthermore, the system also includes a measuring module for measuring the area of ​​the heated surface of the target part and the thickness of the target part.

[0031] Preferably, the system further comprises a vacuum module, which is communicated with the sealed box module and is used for extracting air inside the sealed box module.

[0032] Furthermore, the system workflow includes the following steps:

[0033] Step 1: Measure the area of ​​the heated surface of the target part and the thickness of the target part through the measuring module, and send the data to the calculation and display module;

[0034] Step 2: Control the part fixing module to clamp and fix the target part, operate the drive control module, and transport the part fixing module into the sealing box module so that the back of the target part is against the heat sensing module;

[0035] Step 3: Start the vacuum module to evacuate the air in the sealed box module;

[0036] Step 4: Operate the heat source control module, start the heat source heating module, and preheat the target part;

[0037] Step 5: The calculation and display module obtains the data collected by the heat sensor module in real time;

[0038] Step 6: Increase the output power of the heat source heating module through the heat source control module, and maintain the power output when the preset working power is reached;

[0039] Step 7: The calculation display module calculates according to the data collected by the heat sensor module to obtain the heat resistance coefficient of the target part.

[0040] A mechanical part heat absorption rate detection and control system measures the area of ​​the heated surface of the target part and the thickness of the target part through a measuring module, sends the data to a calculation and display module, controls the part fixing module to clamp and fix the target part, operates the drive control module, transports the part fixing module into a sealed box module, allows the back of the target part to abut against the heat sensing module, starts the vacuum module, evacuates the air in the sealed box module, operates the heat source control module, starts the heat source heating module, preheats the target part, obtains the data collected by the heat sensing module in real time through the calculation and display module, increases the output power of the heat source heating module through the heat source control module, and obtains the heat resistance coefficient of the target part by performing calculations based on the data collected by the heat sensing module.

[0041] Beneficial Effects

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] (1) The present invention heats and supplies heat to mechanical parts and controls power through a heating control unit, fixes and moves mechanical parts through a parts operation unit, collects and analyzes data through a detection and analysis unit, calculates and obtains the heat resistance coefficient of the target parts, and transmits signals and data through a signal transmission unit, thereby making the heat absorption measurement of mechanical parts more efficient and convenient;

[0044] (2) The measuring module of the present invention measures the area of ​​the heated surface of the target part, compares the area of ​​the heated surface of the target part with the heating spot area of ​​the heat source heating module, and uses different calculation formulas to calculate the heat resistance coefficient of the target part according to different comparison results, thereby improving the accuracy of the heat absorption detection results of mechanical parts;

[0045] (3) In the present invention, when the heating spot area of ​​the heat source heating module is greater than or equal to the heating surface area of ​​the target part, the heat flux density of laser heating on the mechanical part is determined to be in a one-dimensional form. When the heating spot area of ​​the heat source heating module is smaller than the heating surface area of ​​the target part, the heat flux density of laser heating on the mechanical part is determined to be in a two-dimensional form. Through different determination methods and calculation formulas, the error of the calculation result of the heat resistance coefficient due to lateral heat loss is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the embodiments or exemplary descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application and should not be regarded as limiting the scope. For ordinary technicians in this field, other drawings can be obtained according to the drawings without paying creative work.

[0047] Figure 1 It is a schematic diagram of the system structure of the present invention;

[0048] Figure 2 Schematic diagram of the system workflow of the present invention. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0051] Example 1

[0052] like Figure 1 As shown, a mechanical parts heat absorption rate detection and control system includes: a heating control unit, a parts operation unit, a detection and analysis unit and a signal transmission unit; the heating control unit, the parts operation unit and the detection and analysis unit are all coupled to the signal transmission unit.

[0053] The heating control unit includes a sealed box module, a heat source heating module and a heat source control module, wherein the sealed box module is used to seal and protect the heating and detection of the target part; the heat source heating module is installed in the sealed box module, and is used to provide heat to the target part; the heat source control module is installed outside the sealed box module, coupled with the heat source heating module, and is used to perform signal control on the heat source heating module, and control the switching and output efficiency of the heat source heating module.

[0054] The part operation unit includes a part fixing module and a drive control module, wherein the part fixing module is used to clamp and fix the target part; the drive control module is coupled to the part fixing module to control the part fixing module and the target part to enter and exit the sealing box module.

[0055] The detection and analysis unit includes a heat sensing module and a calculation and display module, wherein the heat sensing module is fixedly installed in the sealed box module, and is used to abut against the back of the target part to detect the temperature of the back of the target part. The calculation and display module is coupled to the heat sensing module, and is used to combine the temperature value obtained by the heat sensing module and the output efficiency of the heat source heating module to calculate the heat resistance coefficient of the target part and display it.

[0056] The system further comprises a measuring module for measuring the area of ​​the heated surface of the target part and the thickness of the target part.

[0057] The system further comprises a vacuum module, which is in communication with the sealed box module and is used for extracting air inside the sealed box module.

[0058] The heat source heating module adopts a flash method to heat the front surface of the target part through laser pulses, and the front surface of the target part is the heated surface.

[0059] When the heating spot area of ​​the heat source heating module is greater than or equal to the heating surface area of ​​the target part, the calculation formula of the heat resistance coefficient of the target part by the calculation and display module is as follows:

[0060] α=1.37L 2 / (π 2 t 0.5)

[0061] c=Q / (T max ρL )

[0062] λ=α×c×ρ

[0063] Where α is the thermal diffusion coefficient, unit: mm 2 / s; L represents the thickness of the target part, unit: m; t0.5 It represents half of the time required for the temperature rise on the back of the target part to reach the maximum value, in seconds; c represents the specific heat capacity, in J / (kg*K); Q represents the heat flux absorbed by the target part, in W / m 2 ; T max Indicates the maximum temperature rise on the back of the target part, in K; ρ represents the density of the target part, in kg / m 3 ; λ represents the heat resistance coefficient of the target part, unit is W / (mK).

[0064] When the heating spot area of ​​the heat source heating module is smaller than the heating surface area of ​​the target part, the calculation formula of the heat resistance coefficient of the target part by the calculation and display module is as follows:

[0065] α=1.37L 2 / ( π 2 t 0.5)

[0066] c=Q / ( T max ρL )

[0067]

[0068] Wherein, T is the current temperature of the back side of the target part, t is the time, and s is the area of ​​the heated surface of the target part.

[0069] From the above description, it can be seen that in this example, the measurement module is used to measure the area of ​​the heated surface of the target part and the thickness of the target part, and the data is sent to the calculation and display module, the part fixing module is controlled to clamp and fix the target part, the drive control module is operated, the part fixing module is transported into the sealing box module, and the back of the target part is made to collide with the heat sensing module, the vacuum module is started, the air in the sealing box module is evacuated, the heat source control module is operated, the heat source heating module is started, and the target part is preheated. The calculation and display module obtains the data collected by the heat sensing module in real time, and the output power of the heat source heating module is increased through the heat source control module. The calculation and display module calculates according to the data collected by the heat sensing module to obtain the heat resistance coefficient of the target part.

[0070] Example 2

[0071] A mechanical parts heat absorption rate detection and control system comprises: a heating control unit, a parts operation unit, a detection and analysis unit and a signal transmission unit; the heating control unit, the parts operation unit and the detection and analysis unit are all coupled to the signal transmission unit.

[0072] The heating control unit includes a sealed box module, a heat source heating module and a heat source control module, wherein the sealed box module is used to seal and protect the heating and detection of the target part; the heat source heating module is installed in the sealed box module, and is used to provide heat to the target part; the heat source control module is installed outside the sealed box module, coupled with the heat source heating module, and is used to perform signal control on the heat source heating module, and control the switching and output efficiency of the heat source heating module.

[0073] The part operation unit includes a part fixing module and a drive control module, wherein the part fixing module is used to clamp and fix the target part; the drive control module is coupled to the part fixing module to control the part fixing module and the target part to enter and exit the sealing box module.

[0074] The detection and analysis unit includes a heat sensing module and a calculation and display module, wherein the heat sensing module is fixedly installed in the sealing box module, and is used to abut against the back of the target part to detect the temperature of the back of the target part. The calculation and display module is coupled with the heat sensing module, and is used to combine the temperature value obtained by the heat sensing module and the output efficiency of the heat source heating module to calculate the heat resistance coefficient of the target part and display it. The area of ​​the heated surface of the target part and the thickness of the target part are first measured by the measuring module, and the data are sent to the calculation and display module. When the heating spot area of ​​the heat source heating module is greater than or equal to the heated surface area of ​​the target part, the workflow of the mechanical part heat absorption rate detection and control system is mainly as follows:

[0075] The part fixing module is controlled to clamp and fix the target part, and the drive control module is operated to transport the part fixing module into the sealing box module so that the back of the target part is against the heat sensing module.

[0076] Then start the vacuum module to evacuate the air in the sealed box module, operate the heat source control module, start the heat source heating module to preheat the target part, and the calculation and display module obtains the data collected by the heat sensor module in real time;

[0077] Then, the heat source control module increases the output power of the heat source heating module. When the preset working power is reached, the power output is maintained. The calculation and display module calculates the heat resistance coefficient of the target part according to the data collected by the heat sensor module. The calculation formula of the calculation and display module is as follows:

[0078] α=1.37L 2 / (π 2 t 0.5 )

[0079] c=Q / (T max ρL)

[0080] λ=α×c×ρ

[0081] Where α is the thermal diffusion coefficient, unit: mm 2 / s; L represents the thickness of the target part, unit: m; t 0.5 It represents half of the time required for the temperature rise on the back of the target part to reach the maximum value, in seconds; c represents the specific heat capacity, in J / (kg*K); Q represents the heat flux absorbed by the target part, in W / m 2 ; T max Indicates the maximum temperature rise on the back of the target part, in K; ρ represents the density of the target part, in kg / m 3 ; λ represents the heat resistance coefficient of the target part, unit is W / (mK).

[0082] From the above description, it can be seen that in this example, the measurement module is used to measure the area of ​​the heated surface of the target part and the thickness of the target part, and the data is sent to the calculation and display module, the part fixing module is controlled to clamp and fix the target part, the drive control module is operated, the part fixing module is transported into the sealing box module, and the back of the target part is made to collide with the heat sensing module, the vacuum module is started, the air in the sealing box module is evacuated, the heat source control module is operated, the heat source heating module is started, and the target part is preheated. The calculation and display module obtains the data collected by the heat sensing module in real time, and the output power of the heat source heating module is increased through the heat source control module. The calculation and display module calculates according to the data collected by the heat sensing module to obtain the heat resistance coefficient of the target part.

[0083] Example 3

[0084] A mechanical parts heat absorption rate detection and control system comprises: a heating control unit, a parts operation unit, a detection and analysis unit and a signal transmission unit; the heating control unit, the parts operation unit and the detection and analysis unit are all coupled to the signal transmission unit.

[0085] The heating control unit includes a sealed box module, a heat source heating module and a heat source control module, wherein the sealed box module is used to seal and protect the heating and detection of the target part; the heat source heating module is installed in the sealed box module, and is used to provide heat to the target part; the heat source control module is installed outside the sealed box module, coupled with the heat source heating module, and is used to perform signal control on the heat source heating module, and control the switching and output efficiency of the heat source heating module.

[0086] The part operation unit includes a part fixing module and a drive control module, wherein the part fixing module is used to clamp and fix the target part; the drive control module is coupled to the part fixing module to control the part fixing module and the target part to enter and exit the sealing box module.

[0087] The detection and analysis unit includes a heat sensing module and a calculation and display module, wherein the heat sensing module is fixedly installed in the sealing box module, and is used to abut against the back of the target part to detect the temperature of the back of the target part. The calculation and display module is coupled with the heat sensing module, and is used to combine the temperature value obtained by the heat sensing module and the output efficiency of the heat source heating module to calculate the heat resistance coefficient of the target part and display it. The area of ​​the heated surface of the target part and the thickness of the target part are first measured by the measuring module, and the data are sent to the calculation and display module. When the heating spot area of ​​the heat source heating module is smaller than the heated surface area of ​​the target part, the workflow of the mechanical part heat absorption rate detection and control system is mainly as follows:

[0088] The part fixing module is controlled to clamp and fix the target part, and the drive control module is operated to transport the part fixing module into the sealing box module so that the back of the target part is against the heat sensing module.

[0089] Then start the vacuum module to evacuate the air in the sealed box module, operate the heat source control module, start the heat source heating module to preheat the target part, and the calculation and display module obtains the data collected by the heat sensor module in real time;

[0090] Then, the heat source control module increases the output power of the heat source heating module. When the preset working power is reached, the power output is maintained. The calculation and display module calculates the heat resistance coefficient of the target part according to the data collected by the heat sensor module. The calculation formula of the calculation and display module is as follows:

[0091] α=1.37L 2 / ( π 2 t 0.5 )

[0092] c=Q / ( T max ρL)

[0093]

[0094] Where α is the thermal diffusion coefficient, unit: mm 2 / s; L represents the thickness of the target part, unit: m; t 0.5It represents half of the time required for the temperature rise on the back of the target part to reach the maximum value, in seconds; c represents the specific heat capacity, in J / (kg*K); Q represents the heat flux absorbed by the target part, in W / m 2 ; T max Indicates the maximum temperature rise on the back of the target part, in K; ρ represents the density of the target part, in kg / m 3 ; λ represents the heat resistance coefficient of the target part, unit is W / (mK); T is the current temperature of the back of the target part, t represents the time, and s represents the area of ​​the heated surface of the target part.

[0095] From the above description, it can be seen that in this example, the measurement module is used to measure the area of ​​the heated surface of the target part and the thickness of the target part, and the data is sent to the calculation and display module, the part fixing module is controlled to clamp and fix the target part, the drive control module is operated, the part fixing module is transported into the sealing box module, and the back of the target part is made to collide with the heat sensing module, the vacuum module is started, the air in the sealing box module is evacuated, the heat source control module is operated, the heat source heating module is started, and the target part is preheated. The calculation and display module obtains the data collected by the heat sensing module in real time, and the output power of the heat source heating module is increased through the heat source control module. The calculation and display module calculates according to the data collected by the heat sensing module to obtain the heat resistance coefficient of the target part.

[0096] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A mechanical parts heat absorption rate detection and control system, characterized in that: include: A heating control unit, a part operation unit, a detection and analysis unit and a signal transmission unit; the heating control unit, the part operation unit and the detection and analysis unit are all coupled to the signal transmission unit.

2. A mechanical parts heat absorption rate detection and control system according to claim 1, characterized in that: The heating control unit comprises a sealed box module, a heat source heating module and a heat source control module; Wherein, the sealing box module is used to provide sealing protection for the heating and detection of the target parts; The heat source heating module is installed in the sealed box module and is used to provide heat to the target part; The heat source control module is installed outside the sealed box module and coupled to the heat source heating module, and is used to perform signal control on the heat source heating module to control the switch and output efficiency of the heat source heating module.

3. A mechanical parts heat absorption rate detection and control system according to claim 2, characterized in that: The part operation unit includes a part fixing module and a driving control module; Wherein, the part fixing module is used to clamp and fix the target part; The driving control module is coupled to the part fixing module and is used to control the part fixing module and the target part to enter and exit the sealing box module.

4. A mechanical parts heat absorption rate detection and control system according to claim 3, characterized in that: The detection and analysis unit includes a heat sensing module and a calculation and display module; Wherein, the heat sensing module is fixedly installed in the sealing box module, and is used to abut against the back of the target part to detect the temperature of the back of the target part; The calculation and display module is coupled to the heat sensing module, and is used to calculate the heat resistance coefficient of the target part by combining the temperature value obtained by the heat sensing module and the output efficiency of the heat source heating module, and display it.

5. A mechanical parts heat absorption rate detection and control system according to claim 4, characterized in that: The heat source heating module adopts a flash method to heat the front surface of the target part through laser pulses, and the front surface of the target part is the heated surface.

6. A mechanical parts heat absorption rate detection and control system according to claim 5, characterized in that: When the heating spot area of ​​the heat source heating module is greater than or equal to the heating surface area of ​​the target part, the calculation formula of the heat resistance coefficient of the target part by the calculation and display module is as follows: α=1.37L2 / (π2t0.5) c=Q / (TmaxρL) λ=α×c×ρ Where α is the thermal diffusion coefficient, unit: mm 2 / s; L represents the thickness of the target part, unit: m; t 0.5 It represents half of the time required for the temperature rise on the back of the target part to reach the maximum value, in seconds; c represents the specific heat capacity, in J / (kg*K); Q represents the heat flux absorbed by the target part, in W / m 2 ; T max Indicates the maximum temperature rise on the back of the target part, in K; ρ represents the density of the target part, in kg / m 3 ; λ represents the heat resistance coefficient of the target part, unit is W / (mK).

7. A mechanical parts heat absorption rate detection and control system according to claim 6, characterized in that: When the heating spot area of ​​the heat source heating module is smaller than the heating surface area of ​​the target part, the calculation formula of the heat resistance coefficient of the target part by the calculation and display module is as follows: α=1.37L2 / (π2t0.5) c=Q / (TmaxρL) Wherein, T is the current temperature of the back side of the target part, t is the time, and s is the area of ​​the heated surface of the target part.

8. A mechanical parts heat absorption rate detection and control system according to claim 7, characterized in that: The system further comprises a measuring module for measuring the area of ​​the heated surface of the target part and the thickness of the target part.

9. A mechanical parts heat absorption rate detection and control system according to claim 8, characterized in that: The system further comprises a vacuum module, which is in communication with the sealed box module and is used for extracting air inside the sealed box module.

10. A mechanical parts heat absorption rate detection and control system according to claim 9, characterized in that: The system workflow includes the following steps: Step 1: Measure the area of ​​the heated surface of the target part and the thickness of the target part through the measuring module, and send the data to the calculation and display module; Step 2: Control the part fixing module to clamp and fix the target part, operate the drive control module, and transport the part fixing module into the sealing box module so that the back of the target part is against the heat sensing module; Step 3: Start the vacuum module to evacuate the air in the sealed box module; Step 4: Operate the heat source control module, start the heat source heating module, and preheat the target part; Step 5: The calculation and display module obtains the data collected by the heat sensor module in real time; Step 6: Increase the output power of the heat source heating module through the heat source control module, and maintain the power output when the preset working power is reached; Step 7: The calculation display module calculates according to the data collected by the heat sensor module to obtain the heat resistance coefficient of the target part.

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