A smart heat treatment production line for strip materials

Abstract

This invention provides an intelligent heat treatment production line for strip steel, comprising a base, a frame, and a controller. A winding mechanism is mounted on the base, and a moving mechanism is located at the top of the frame. A heat treatment mechanism is connected to the bottom of the moving mechanism. The heat treatment mechanism includes an insulation box with a channel in which the strip steel slides. An induction heating tube is installed inside the insulation box. First hydraulic rods are positioned vertically opposite each other inside the insulation box and connected to a housing. Multiple T-shaped sliding rods are slidably mounted on the housing. The tapered portions of the T-shaped sliding rods and the tapered through-holes on the housing engage with each other. A helical spring is fitted onto one end of each T-shaped sliding rod, and an electromagnet is connected to the other end. The electromagnet has an air jet port. An air pump is connected to the inner cavity of the housing via air pipes one and two. The electromagnet in this invention drives the T-shaped sliding rods based on the change in magnetic force after the strip steel is heated, controlling the flow of inert gas and automatically controlling the heat treatment temperature to prevent overheating and surface oxidation of the strip steel.

Description

Technical Field

[0001] This invention relates to the field of heat treatment technology, and in particular to an intelligent heat treatment production line for strip materials. Background Technology

[0002] In modern industrial manufacturing, strip products, especially magnetic strip products, are widely used in electronics, communications, aerospace, and other fields due to their unique physical properties. The performance of magnetic strips is closely related to their microstructure and material composition, and heat treatment is an important means of controlling these properties. Traditional strip heat treatment processes typically involve heating, holding, and cooling steps. By precisely controlling the temperature and time parameters in these steps, the material properties can be improved. However, traditional heat treatment equipment has a relatively simple structure and often only achieves basic heating and holding functions, failing to meet the requirements for high-precision control of the heat treatment process. Quenching, as a special heat treatment method, is of great significance for the performance control of magnetic strips. Quenching typically involves heating the material above its critical temperature and then rapidly cooling it, causing a phase transformation within the material, thereby improving its hardness, wear resistance, and toughness.

[0003] In existing technologies, traditional strip heat treatment production lines use enclosed heating furnaces for heat treatment. These furnaces need to be kept constantly heated, resulting in high energy consumption, relatively slow strip temperature rise, and relatively low heat treatment efficiency. While high-frequency induction heating equipment offers rapid temperature rise and low energy consumption, temperature control is difficult, leading to overheating and surface oxidation of the strip. This can cause coarsening of the austenite grains, resulting in coarse martensite after heat treatment, increasing the strip's brittleness and making it prone to cracking. Summary of the Invention

[0004] In view of this, the present invention proposes an intelligent heat treatment production line for strip, which can determine the effect of austenite formation during heat treatment of strip by detecting the magnetic force of the strip, thereby improving the heat treatment effect of strip.

[0005] The technical solution of this invention is implemented as follows:

[0006] A smart heat treatment production line for strip material, characterized in that it includes a base, a frame, and a controller. A winding mechanism is positioned opposite each other on the base, with the winding mechanism located at both ends of the base. Strip material is mounted on the winding mechanism, and the magnetic permeability of the strip material decreases with increasing temperature. The frame is located on top of the base, and a moving mechanism is located on the top of the frame. A heat treatment mechanism is connected to the bottom of the moving mechanism. The heat treatment mechanism includes a heat preservation chamber with a channel extending through both sides of the chamber. The strip material is slidably disposed within the channel. Induction heating tubes are located inside the heat preservation chamber on the upper and lower sides of the strip material. First hydraulic rods are positioned opposite each other inside the heat preservation chamber, and the telescopic ends of the first hydraulic rods are connected to a housing. Multiple T-shaped sliding rods are slidably mounted on the housing. The rod has a tapered section, and the inner wall of the shell near the strip end has a tapered through hole. The tapered section and the tapered through hole cooperate to seal the connection between the inside and outside of the shell. One end of the T-shaped slide rod is fitted with a helical spring, and the other end extends through the tapered through hole out of the side of the shell and is connected to an electromagnet. The electromagnet has an air jet hole. One end of the helical spring abuts against the top of the T-shaped slide rod, and the other end abuts against the top surface of the insulation box. The top surface of the insulation box is equipped with an air pump. The air pump introduces inert gas into the inner cavity of the shell through air pipe one and air pipe two. Air pipe one is equipped with a flow valve. The top of the cavity is equipped with a temperature sensor. The temperature sensor monitors the temperature of the strip on both sides of the shell. The controller is located on the top surface of the frame and is electrically connected to the drum mechanism, the moving mechanism, the first hydraulic rod, the induction heating tube, the electromagnet, the temperature sensor, the flow valve, and the air pump.

[0007] Preferably, the drum mechanism includes a second hydraulic rod, a U-shaped frame, a rotating shaft, and a first motor. The second hydraulic rod is located on the top surface of the base. The telescopic end of the second hydraulic rod is connected to the U-shaped frame. The top two ends of the U-shaped frame are rotatably provided with rotating shafts. One end of the rotating shaft is rotatably connected to the U-shaped frame, and the other end passes through the U-shaped frame and is driven by the first motor.

[0008] Preferably, the moving mechanism includes a lead screw, a moving block, a second motor, and a third hydraulic rod. The lead screw is rotatably mounted on the top of the frame, with one end rotatably connected to the frame and the other end passing through the frame and driving the second motor. The second motor is located on the side of the frame. The moving block is mounted on the lead screw and slidably connected to the frame. The third hydraulic rod is located on the bottom surface of the moving block, and its telescopic end is connected to the top surface of the insulation box.

[0009] Preferably, it also includes a sealing mechanism, which includes a fourth hydraulic rod, a slider, a scraper, and a second helical spring. The side wall of the channel is provided with a receiving groove, which is perpendicular to the channel. The top of the receiving groove is provided with a fourth hydraulic rod, and the telescopic end of the fourth hydraulic rod is connected to the slider. The bottom of the slider is provided with a scraper, and the bottom of the receiving groove is provided with a second helical spring. One end of the second helical spring is connected to the receiving groove and the other end is connected to the slider. The top of the slider is provided with a scraper.

[0010] Preferably, a distance sensor is also provided on the side of the housing, the distance sensor detects the distance between the electromagnet and the strip, and the distance sensor is electrically connected to the controller.

[0011] Preferably, it also includes a limiting mechanism, which includes a fifth hydraulic rod, a U-shaped bracket and a transmission roller. The fifth hydraulic rod is located on the top surface of the base and on one side of the insulation box. Its telescopic end is provided with a U-shaped bracket. The top of the U-shaped bracket is provided with a transmission roller, and the transmission roller abuts against the bottom surface of the strip.

[0012] Preferably, the device also includes a camera, an AI recognition module, and an optimization module. The camera is mounted on a U-shaped bracket. The camera captures metallographic images of the strip and transmits the data to the AI ​​recognition module. The AI ​​recognition module identifies the ratio of austenite to martensite, and then uses the maximum austenite ratio as the objective function. The optimization module optimizes the induction heating tube power, strip transmission speed, and gas flow parameters. The data after each heat treatment is used as feedback, and the process is iterated continuously to obtain the optimized solution for the induction heating tube power, strip transmission speed, and gas flow parameters.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] ① The electromagnet and strip are driven by a T-shaped slide bar to control the flow of inert gas according to the change of magnetic force after the strip is heated, and the heat treatment temperature is automatically controlled to avoid overheating and surface oxidation of the strip. When using high-frequency induction heating equipment, the temperature rises quickly and the energy consumption is low, but the temperature is not easy to control. The strip is prone to overheating and surface oxidation, which will lead to coarsening of the austenite grains in the strip. After heat treatment, a coarse martensite structure is obtained, which increases the brittleness of the strip and makes it easy to crack.

[0015] ② A distance sensor is provided. When the induction heating tube is activated to heat the strip, the first hydraulic rod is activated first. The extension end of the first hydraulic rod extends, causing the housing to move closer to the upper and lower sides of the strip. The distance sensor is used to detect the distance between the electromagnet and the strip. When the distance between the electromagnet and the strip reaches the preset value, the first hydraulic rod is stopped, and then the electromagnet is activated. The electromagnet generates magnetic force, and the electromagnet is subjected to the reaction force of the strip. The reaction force is greater than the preload of the helical spring, thereby driving the T-shaped slide rod to move to one side of the strip. At this time, the helical spring is compressed, and the tapered part on the T-shaped slide rod presses against the tapered through hole on the housing. The cavity is a sealed space. At this time, there is a certain gap between the electromagnet and the strip. When the strip moves by a certain amount of deviation, it does not affect the tapered part of the T-shaped slide rod from fitting against the tapered through hole, and the cavity remains sealed. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an intelligent heat treatment production line for strip materials according to the present invention;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of an intelligent heat treatment production line for strip materials according to the present invention.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0022] Figure 6 This is a schematic diagram of the electronic control principle of the present invention;

[0023] Reference numerals: 1. Base; 2. First hydraulic rod; 3. U-shaped frame; 4. Rotating shaft; 5. First motor; 6. Strip material; 7. Frame; 8. Moving block; 9. Second hydraulic rod; 10. Air pump; 11. Air pipe one; 12. Flow valve; 13. Insulation box; 14. Induction heating tube; 15. Housing; 16. Third hydraulic rod; 17. Channel; 18. Transmission roller; 19. Support; 20. Controller; 21. Camera; 22. ... 23. Second motor; 24. Lead screw; 25. Slide rod; 26. Distance sensor; 27. Temperature sensor; 28. Conical part; 29. ​​Conical through hole; 30. Electromagnet; 31. Air jet; 32. Cavity; 33. Second air pipe; 34. First helical spring; 35. Receiving cavity; 36. Fifth hydraulic rod; 37. Slider; 38. Scraper; 39. Second helical spring; 40. AI recognition module; 41. Optimization module. Detailed Implementation

[0024] To better understand the technical content of this invention, a specific embodiment is provided below, and the invention will be further described in conjunction with the accompanying drawings.

[0025] Example 1:

[0026] See Figures 1 to 5This invention provides an intelligent heat treatment production line for strip 6, comprising a base 1, a frame 7, and a controller 20. A winding mechanism is disposed opposite each other on the base 1, with the winding mechanism located at both ends of the base 1. Strip 6 is disposed on the winding mechanism, and the magnetic permeability of the strip 6 decreases with increasing temperature. The frame 7 is located on top of the base 1, and a moving mechanism is provided on the top of the frame 7. A heat treatment mechanism is connected to the bottom of the moving mechanism. The heat treatment mechanism includes an insulation box 13, which has a channel 17 that penetrates through the insulation box. On both sides of the box 13, the strip 6 is slidably disposed within the channel 17. The insulation box 13 contains induction heating tubes 14 located on the upper and lower sides of the strip 6. The insulation box 13 contains first hydraulic rods 2 arranged vertically opposite each other. The telescopic ends of the first hydraulic rods 2 are connected to housings 15. Multiple T-shaped sliding rods 25 are slidably disposed on the housings 15. Each T-shaped sliding rod 25 has a tapered portion 28. A tapered through hole 29 is provided on the inner wall of the housing 15 near the end of the strip 6. The tapered portion 28 and the tapered through hole 29 cooperate with each other for… The sealing shell 15 is connected to the inside and outside. One end of the T-shaped slide rod 25 is fitted with a helical spring 34, and the other end extends out of the side of the shell 15 through the tapered through hole 29 and is connected to an electromagnet 30. The electromagnet 30 is provided with a jet hole 31, through which gas can be evenly sprayed onto the strip 6. One end of the helical spring 34 abuts against the top of the T-shaped slide rod 25, and the other end abuts against the top surface of the insulation box 13. The top surface of the insulation box 13 is provided with an air pump 10, which supplies gas to the inner cavity 32 of the shell 15 through an air pipe 11 and an air pipe 33. An inert gas is connected to the inner cavity 32 of the housing 15. A flow valve 12 is provided on the gas pipe 11 to control the flow rate. A temperature sensor 27 is provided on the top of the cavity 32 to monitor the temperature of the strip 6 on both sides of the housing 15. The controller 20 is located on the top surface of the frame 7 and is electrically connected to the drum mechanism, the moving mechanism, the first hydraulic rod 2, the induction heating tube 14, the electromagnet 30, the temperature sensor 27, the flow valve 12, and the air pump 10. The controller 20 uses an STM32-L0 low-power microprocessor.

[0027] When the intelligent heat treatment production line for strip 6 is running, strip 6 is first placed on one end of the winding mechanism. After passing through channel 17, strip 6 is connected to the other end of the winding mechanism. The winding mechanism sets strip 6 horizontally. One end of the winding mechanism releases strip 6, while the other end of the winding mechanism receives strip 6. The moving mechanism is used to move the heat preservation box 13 to the position where heat treatment is required. The first hydraulic rod 2 is activated, and the extension end of the first hydraulic rod 2 extends, driving the housing 15 closer to the middle strip 6. When the distance between the electromagnet 30 and the top and bottom surfaces of the strip 6 reaches the preset value, it stops. Then, the flow valve 12 and the air pump 10 are activated. The air pump 10 pumps helium through the air pipe 11 to... Helium gas is introduced into the housing 15 via the second gas tube 33 and flows into the insulation box 13 through the conical through-hole 29. When the flow valve 12 reaches the preset value, helium fills the entire insulation box 13, expelling the oxygen from the insulation box 13 to the outside, thus preventing surface oxidation of the strip 6 during heat treatment. Then, the electromagnet 30 is activated, generating electromagnetic force that attracts the strip 6. The electromagnet 30 experiences a reaction force from the strip 6, which is greater than the preload of the helical spring, thereby driving the T-shaped slide rod 25 to move towards the strip 6. At this time, the helical spring 34 is compressed, and the conical part 28 on the T-shaped slide rod 25 presses against the conical through-hole 29 on the housing 15. The cavity 32 is a sealed space. Helium gas is sealed, and the supply to the insulation box 13 is stopped. Then, the induction heating tube 14 is activated. The induction heating tube 14 generates a high-frequency magnetic field through a high-frequency current, causing eddy currents inside the strip 6, resulting in a rapid rise in the temperature of the strip 6. As the temperature of the strip 6 increases, its magnetism continuously decreases. When the temperature sensor 27 on the side of the shell 15 near the induction heating tube 14 detects that the temperature of the strip 6 has reached the heat treatment temperature, the magnetism of the strip 6 reaches its minimum value. The moving mechanism is then activated, causing the insulation box 13 to move, which in turn causes the induction heating tube 14 to move slowly. The reaction force exerted on the electromagnet 30 by the strip 6 is less than the compression of the coil spring. The force causes the helical spring to drive the T-shaped slide bar 25 to move away from the strip 6. The tapered part 28 on the T-shaped slide bar 25 and the tapered through hole 29 on the housing 15 are separated by a certain distance, so that helium gas flows out continuously from the housing 15 through the tapered through hole 29. The ejected helium gas flow cools both sides of the strip 6. The temperature sensor 27 located on one side of the housing 15 detects the temperature of the strip 6 to adjust the moving speed of the moving mechanism so that the heating time of the strip 6 meets the requirements of the heat treatment curve, improves the efficiency of heat treatment, and avoids overheating of the strip 6, which would cause coarsening of the austenite grains in the strip 6. After heat treatment, the strip 6 obtains a coarse martensite structure, which will increase the brittleness of the strip 6.

[0028] Preferably, the drum mechanism includes a second hydraulic rod 9, a U-shaped frame 3, a rotating shaft 4, and a first motor 5. The second hydraulic rod 9 is located on the top surface of the base 1. The telescopic end of the second hydraulic rod 9 is connected to the U-shaped frame 3. The top two ends of the U-shaped frame 3 are rotatably provided with the rotating shaft 4. One end of the rotating shaft 4 is rotatably connected to the U-shaped frame 3, and the other end passes through the U-shaped frame 3 and is driven by the first motor 5. The first motor 5 is a stepper motor that can precisely control the rotation angle.

[0029] The strip 6 is in the form of a coil and is mounted on a winding mechanism at one end. The other end of the strip 6 is connected to a winding mechanism at the other end of the frame 7. When the intelligent heat treatment production line for the strip 6 is running, the first motor 5 on the winding mechanism at one end is started. The rotation of the first motor 5 drives the rotating shaft 4 to rotate, which releases the strip 6. The winding mechanism at the other end then collects the strip 6. At the same time, the second hydraulic rod 9 is started. The extension end of the second hydraulic rod 9 extends, causing the U-shaped frame 3 to rise, thereby making the strip 6 horizontal, which is beneficial for the heat treatment operation of the strip 6.

[0030] Preferably, the moving mechanism includes a lead screw 24, a moving block 8, a second motor 23, and a third hydraulic rod 16. The lead screw 24 is rotatably mounted on the top of the frame 7. One end of the lead screw 24 is rotatably connected to the frame 7, and the other end passes through the frame 7 and is connected to the second motor 23. The second motor 23 is located on the side of the frame 7 and is a stepper motor that can precisely control the rotation angle. The moving block 8 is mounted on the lead screw 24 and is slidably connected to the frame 7. The third hydraulic rod 16 is located on the bottom surface of the moving block 8, and its telescopic end is connected to the top surface of the insulation box 13.

[0031] When the intelligent heat treatment production line for strip 6 is running, the second motor 23 is started. The rotation of the second motor 23 drives the lead screw 24 to rotate. The moving block 8 is screwed to the lead screw 24. The rotation of the lead screw 24 drives the moving block 8 to move along the lead screw 24. The movement of the moving block 8 drives the third hydraulic rod 16 to move. At the same time, the third hydraulic rod 16 is started. The telescopic end of the third hydraulic rod 16 extends, thereby driving the heat preservation box 13 to the position of the strip 6 that needs to be heat treated.

[0032] Preferably, it also includes a sealing mechanism, which includes a fourth hydraulic rod 22, a slider 37, a scraper 38, and a second helical spring 39. The side wall of the channel 17 is provided with a receiving groove, which is perpendicular to the channel 17. The top of the receiving groove is provided with the fourth hydraulic rod 22, and the telescopic end of the fourth hydraulic rod 22 is connected to the slider 37. The bottom of the slider 37 is provided with the scraper 38, and the bottom of the receiving groove is provided with the second helical spring 39. One end of the second helical spring 39 is connected to the receiving groove and the other end is connected to the slider 37. The top of the slider 37 is provided with the scraper 38.

[0033] When the intelligent heat treatment production line for strip 6 is running, the strip groove is first passed through channel 17, and then the fourth hydraulic rod 22 is activated. The extension end of the fourth hydraulic rod 22 extends, causing the slider 37 to move to one side of strip 6. The slider 37 slides downward, causing the scraper 38 to move downward and abut against the top surface of strip 6. At this time, the helical spring 2 39 supports the slider 37, and the scraper 38 set on the top surface of the slider 37 abuts against the bottom surface of strip 6, thereby keeping the cavity 32 a sealed space. Then, the flow valve 12 is activated, and the air pump 10 fills the cavity 32 with inert helium gas. Then, the sealing mechanism of the side wall of the heat preservation box 13 is closed, so that when the induction heating tube 14 heats the strip 6, the strip 6 is prevented from reacting with oxygen to produce oxidation. When the strip 6 is moving, the upper and lower surfaces of the strip 6 can be cleaned by the scraper 38, which helps to keep the surface of the strip 6 clean and flat.

[0034] Preferably, a distance sensor 26 is also provided on the side of the housing 15. The distance sensor 26 detects the distance between the electromagnet 30 and the strip 6. The distance sensor 26 is electrically connected to the controller 20.

[0035] When the intelligent heat treatment production line for strip 6 is running, strip 6 slides through the through hole. When the induction heating tube 14 is activated to heat strip 6, the first hydraulic rod 2 is activated first. The telescopic end of the first hydraulic rod 2 extends, causing the housing 15 to move closer to the upper and lower sides of strip 6. The distance sensor 26 is used to detect the distance between electromagnet 30 and strip 6. When the distance between electromagnet 30 and strip 6 reaches a preset value, the first hydraulic rod 2 is stopped, and then electromagnet 30 is activated. Electromagnet 30 generates magnetic force, and electromagnet 3... The electromagnet 30 is subjected to the reaction force of the strip 6, which is greater than the preload of the helical spring, thereby driving the T-shaped slide bar 25 to move to one side of the strip 6. At this time, the helical spring 34 is compressed, and the tapered part 28 on the T-shaped slide bar 25 presses against the tapered through hole 29 on the housing 15. The cavity 32 is a sealed space. At this time, there is a certain gap between the electromagnet 30 and the strip 6. When the strip 6 moves by a certain amount of offset, it does not affect the tapered part 28 of the T-shaped slide bar 25 from fitting against the tapered through hole 29, and the cavity 32 remains sealed.

[0036] Preferably, it also includes a limiting mechanism, which includes a fifth hydraulic rod 36, a U-shaped bracket 19 and a transmission roller 18. The fifth hydraulic rod 36 is located on the top surface of the base 1 and on one side of the insulation box 13. Its telescopic end is provided with a U-shaped bracket 19. The top of the U-shaped bracket 19 is provided with a transmission roller 18, and the transmission roller 18 abuts against the bottom surface of the strip 6.

[0037] After the strip 6 has completed heat treatment, the first motor 5 is started. The rotation of the first motor 5 drives the rotating shaft 4 to rotate. The winding mechanism at one end releases the strip 6, and the winding mechanism at the other end receives the strip 6, moving the strip 6 to one end. At this time, the fifth hydraulic rod 36 is started. The telescopic end of the fifth hydraulic rod 36 extends, causing the U-shaped bracket 19 to rise. The rise of the U-shaped bracket 19 causes the transmission roller 18 to rise. The transmission roller 18 abuts against the strip 6, which helps to limit the height of the strip 6, keeping the strip 6 in a horizontal state during movement.

[0038] Example 2:

[0039] See Figure 6 The difference from Example 1 is as follows:

[0040] Preferably, the system also includes an AI recognition module 40, an optimization module 41, and a camera 21. The camera 21 is mounted on the U-shaped bracket 19. The transmission roller 18 is used to limit the position of the strip 6 to prevent the strip 6 from colliding with the camera 21. The camera 21 captures metallographic images of the strip 6 and transmits the data to the AI ​​recognition module 40. The AI ​​recognition module 40 identifies the ratio of austenite to martensite, and then uses the maximum austenite ratio as the objective function. The optimization module 41 optimizes the power of the induction heating tube 14, the transmission speed of the strip 6, and the inert gas flow rate parameters. The system uses the data after each heat treatment as feedback and iterates continuously to obtain the optimized solution for the power of the induction heating tube 14, the transmission speed of the strip 6, and the inert gas flow rate parameters.

[0041] AI can automatically identify and calculate the specific ratio of austenite to martensite in the image. This step is crucial for the subsequent optimization process because it provides real-time feedback, allowing the system to understand the impact of the current heat treatment process on the microstructure of strip 6. After acquiring the austenite to martensite ratio data provided by the AI ​​identification module 40, the optimization module 41 begins its work, aiming to maximize the austenite ratio, as a higher austenite content can improve the toughness and corrosion resistance of certain materials. To achieve this goal, the optimization module 41 uses mathematical algorithms (such as genetic algorithms, gradient descent methods, etc.) to adjust parameters such as the power of the induction heating tube 14, the conveying speed of strip 6, and the helium flow rate. This adjustment is based on historical data and real-time feedback to ensure that each adjustment is directed towards a better outcome. After each heat treatment, the AI ​​identification module 40 updates the austenite to martensite ratio data based on newly captured metallographic images, and then the optimization module 41 adjusts the heat treatment parameters based on this data. This process is repeated until the preset optimization goal is reached or the convergence condition is met, meaning that the parameter adjustments no longer have a significant impact on the result.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart heat treatment production line for strip materials, characterized in that, The system includes a base, a frame, and a controller. A winding mechanism is positioned opposite each other on the base, with the winding mechanism located at both ends. A strip is wound on the winding mechanism, and the magnetic permeability of the strip decreases with increasing temperature. The frame is located on top of the base, and a moving mechanism is located on top of the frame. A heat treatment mechanism is connected to the bottom of the moving mechanism. The heat treatment mechanism includes an insulation box with a channel extending through both sides. The strip slides within the channel. Induction heating tubes are located above and below the strip within the insulation box. First hydraulic rods are positioned opposite each other above and below the insulation box, with their telescopic ends connected to a housing. Multiple T-shaped sliding rods slide on the housing, each T-shaped sliding rod having a tapered portion. The housing is located near the strip. A tapered through hole is provided on the inner wall of one end. The tapered part and the tapered through hole cooperate with each other to seal the communication between the inside and outside of the shell. A helical spring is sleeved on one end of the T-shaped slide rod, and the other end extends out of the side of the shell through the tapered through hole and is connected to an electromagnet. An air jet hole is provided on the electromagnet. One end of the helical spring abuts against the top of the T-shaped slide rod, and the other end abuts against the top surface of the heat preservation box. An air pump is provided on the top surface of the heat preservation box. The air pump introduces inert gas into the inner cavity of the shell through air pipe one and air pipe two. A flow valve is provided on air pipe one. A temperature sensor is provided on the top of the cavity. The temperature sensor monitors the temperature of the strip on both sides of the shell. The controller is located on the top surface of the frame and is electrically connected to the drum mechanism, the moving mechanism, the first hydraulic rod, the induction heating tube, the electromagnet, the temperature sensor, the flow valve, and the air pump.

2. The intelligent heat treatment production line for strip material according to claim 1, characterized in that, The drum mechanism includes a second hydraulic rod, a U-shaped frame, a rotating shaft, and a first motor. The second hydraulic rod is located on the top surface of the base. The telescopic end of the second hydraulic rod is connected to the U-shaped frame. The top two ends of the U-shaped frame are rotatably equipped with rotating shafts. One end of the rotating shaft is rotatably connected to the U-shaped frame, and the other end passes through the U-shaped frame and is driven by the first motor.

3. The intelligent heat treatment production line for strip material according to claim 1, characterized in that, The moving mechanism includes a lead screw, a moving block, a second motor, and a third hydraulic rod. The lead screw is rotatably mounted on the top of the frame. One end of the lead screw is rotatably connected to the frame, and the other end passes through the frame and drives the second motor. The second motor is located on the side of the frame. The moving block is mounted on the lead screw and slidably connected to the frame. The third hydraulic rod is located on the bottom surface of the moving block, and its telescopic end is connected to the top surface of the insulation box.

4. The intelligent heat treatment production line for strip material according to claim 1, characterized in that, It also includes a sealing mechanism, which includes a fourth hydraulic rod, a slider, a scraper, and a second helical spring. The side wall of the channel is provided with a receiving groove, which is perpendicular to the channel. The top of the receiving groove is provided with a fourth hydraulic rod, and the telescopic end of the fourth hydraulic rod is connected to the slider. The bottom of the slider is provided with a scraper, and the bottom of the receiving groove is provided with a second helical spring. One end of the second helical spring is connected to the receiving groove and the other end is connected to the slider. The top of the slider is provided with a scraper.

5. The intelligent heat treatment production line for strip material according to claim 1, characterized in that, The housing is also equipped with a distance sensor on its side, which detects the distance between the electromagnet and the strip, and the distance sensor is electrically connected to the controller.

6. The intelligent heat treatment production line for strip material according to claim 1, characterized in that, It also includes a limiting mechanism, which includes a fifth hydraulic rod, a U-shaped bracket and a transmission roller. The fifth hydraulic rod is located on the top surface of the base and on one side of the insulation box. Its telescopic end is provided with a U-shaped bracket. The top of the U-shaped bracket is provided with a transmission roller, and the transmission roller abuts against the bottom surface of the strip.

7. The intelligent heat treatment production line for strip according to claim 6, characterized in that, It also includes a camera, an AI recognition module, and an optimization module. The camera is mounted on a U-shaped bracket. The camera captures metallographic images of the strip and transmits the data to the AI ​​recognition module. The AI ​​recognition module identifies the ratio of austenite to martensite, and then uses the maximum austenite ratio as the objective function. The optimization module optimizes the induction heating tube power, strip conveying speed, and inert gas flow rate parameters. The data after each heat treatment is used as feedback to continuously iterate, thereby obtaining the optimized solution for the induction heating tube power, strip conveying speed, and inert gas flow rate parameters.

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