Heating constant-temperature device and heating method for ring rolling process

Abstract

The invention relates to the field of forging forming, in particular to a ring rolling process heating constant-temperature device and a heating method, and the device comprises a heating mechanism, a monitoring mechanism and a control mechanism; the heating mechanism comprises a power source, a transformer and a coil, the power source, the transformer and the coil are electrically connected in sequence, the coil is provided with a U-shaped heating area and used for being arranged near a main roller of the ring rolling machine, and one section, in the circumferential direction, of the annular forge piece is located in the U-shaped heating area. The monitoring mechanism comprises an infrared thermometer, and the infrared thermometer is used for monitoring the temperature of the annular forge piece; the control mechanism comprises a controller, and the infrared thermometer and the power source are electrically connected with the controller. Through cooperation of the controller, the infrared thermometer and the heating mechanism, the problem of local temperature drop of the ring piece in the machining process is effectively solved, the near-isothermal ring rolling technology can be achieved, the uniformity and consistency of the structure of the ring piece are remarkably improved, and the defects of coarse grains, cracking and the like are overcome.

Description

Technical Field

[0001] This invention relates to the field of forging, and in particular to a heating and temperature control device and heating method for a ring rolling process. Background Technology

[0002] Ring rolling is a key plastic forming technology that uses radial and axial rolling to process ring-shaped blanks to target dimensions. It is widely used in the manufacture of precision ring-shaped parts such as bearing rings and gear rings. However, during the rolling process, the contact between the ring and the die, as well as plastic deformation, can cause a rapid drop in localized temperature of the workpiece, especially noticeable in thin-walled or large-diameter rings. This localized temperature drop can lead to problems such as increased material deformation resistance, reduced processing efficiency, uneven microstructure, localized grain coarsening, and even blank cracking, seriously affecting product quality and production efficiency.

[0003] Traditional solutions typically involve reheating the workpiece in a furnace, but this method suffers from drawbacks such as high energy consumption, slow heating speed, and inability to match the rolling cycle, making it difficult to achieve continuous and automated production. Furthermore, the reheated workpiece may still experience localized temperature loss during the forging process.

[0004] Therefore, there is an urgent need for a fast, precise, and localized temperature compensation device that can dynamically adapt to the ring rolling machine in order to achieve near-isothermal ring rolling process and improve product quality and production efficiency. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems of increased material deformation resistance, uneven microstructure and properties, and cracking caused by local temperature drop in the existing ring rolling process, and to provide a heating and constant temperature device and heating method for the ring rolling process.

[0006] In a first aspect, the present invention provides a heating and temperature control device for a ring rolling process, comprising a heating mechanism, a monitoring mechanism, and a control mechanism; Heating mechanism: includes a power supply, a transformer and a coil, which are electrically connected in sequence. The coil is provided with a U-shaped heating area. The coil is used to be set near the main roller of the ring rolling mill, and a section of the annular forging in the circumferential direction is located in the U-shaped heating area. Monitoring equipment includes an infrared thermometer, which is used to monitor the temperature of the ring forging. Control mechanism: includes a controller, and the infrared thermometer and the power supply are electrically connected to the controller respectively.

[0007] This invention discloses a heating and temperature control device for a ring rolling process. In use, an infrared thermometer measures the temperature of a specific location on the ring forging on the ring rolling machine in real time. When the temperature at that location is lower than the process control value, the infrared thermometer transmits a signal to the controller. The controller calculates the time it takes for the temperature measurement point to reach the heating point based on the deviation between the preset temperature parameters and the real-time detection value, as well as the main roller speed and the distance between the measurement point and the heating point. It then outputs an adjustment command to the power supply, controlling its activation or increasing output power. Upon receiving the command, the power supply provides a larger current to the coil through a transformer, enhancing the alternating magnetic field generated by the coil. This causes the ring forging section within its U-shaped heating area to rapidly heat up due to electromagnetic induction, compensating for the low-temperature points in the ring forging, improving the uniformity and consistency of the ring's microstructure, and preventing defects such as coarse grains and cracking.

[0008] Preferably, the coil includes a first arm, a second arm, and a connecting part, the first arm, the connecting part, and the second arm are connected to form the U-shaped heating area, and the first arm and the second arm are located on the upper and lower end faces of the annular forging.

[0009] The coil is positioned across the upper and lower sides of the annular forging via the first and second arms, thereby covering a section of the annular forging in the circumferential direction and achieving localized heating of the annular forging.

[0010] Preferably, the control mechanism further includes an encoder, which is electrically connected to the controller and is used to be mounted on the main roller of the ring rolling mill.

[0011] By adding an encoder to collect the main roller speed in real time, the controller obtains the key parameter of the real-time linear velocity of the ring forging rotation. This enables the system to dynamically calculate and predict the precise time for the low temperature point to move to the heating point, achieving precise synchronization between the temperature compensation action and the ring rotation position, and solving the core technical problem of mismatch between temperature measurement and heating position caused by the ring rotation.

[0012] Preferably, the monitoring mechanism further includes an infrared rangefinder, which is electrically connected to the controller.

[0013] By monitoring the changes in the outer diameter of the ring in real time with an infrared rangefinder, the control system can dynamically correct the calculation error of the arc length of the heating point movement caused by the change in the size of the ring. This design ensures that the calculation of the delay time remains highly accurate throughout the entire ring rolling process, regardless of how much the diameter of the ring increases. This guarantees the accuracy of the heat compensation position and improves the adaptability and reliability of the entire system at different processing stages.

[0014] In a second aspect, the present invention provides a heating method for a ring rolling process, comprising the following steps: S1. Real-time temperature monitoring of one side of the annular forging; S2. Calculate the time delay required for the temperature measuring point of the ring forging to reach the heating point. The calculation formula is: ΔT = ΔL / V - T1, ΔL = 2πr × (φ / 360°). In the formula: ΔT is the delay time; ΔL is the distance from the temperature measuring point to the heating point along the rotation direction of the annular forging; V is the main roller linear speed; T1 is the response time of the heating mechanism; Φ is the central angle formed by the line connecting the temperature measuring point and the center of the annular forging, along the rotation direction of the annular forging, to the line connecting the heating point and the center of the annular forging; r is the radius of the annular forging; S3. After temperature measurement, delay the delay time to start the heating mechanism or increase the power of the heating mechanism.

[0015] This invention discloses a heating method for a ring rolling process. By calculating the travel time from the temperature measuring point to the heating point using a delay time calculation formula, when the temperature at the measuring point is lower than the normal range (800℃-1000℃), the heating mechanism automatically compensates for the temperature at the measuring point. This method comprehensively considers the relationship between the linear velocity of the ring rotation and the arc length of the fixed spatial angle, so that the triggering time of the heating command is strictly bound to the actual movement state of the ring, achieving precise temperature compensation for low-temperature points during movement. This is the key control core for realizing the near-isothermal ring rolling process.

[0016] Preferably, it also includes power regulation: setting a temperature control value and dynamically adjusting the power of the heating mechanism as the temperature changes.

[0017] By setting a temperature control value and employing dynamic power regulation (such as a PID algorithm), the system forms a closed-loop temperature feedback control system. It can respond to temperature fluctuations in real time and make stepless and smooth adjustments to the heating power, rather than a simple "on-off" control. This stabilizes the temperature of the ring part within a very narrow range of the set value (±5°C), truly achieving the process requirements of constant temperature forging and improving the consistency of product performance.

[0018] Preferably, it also includes frequency adjustment: adjusting the frequency of the heating mechanism according to the material of the annular forging.

[0019] The device automatically adjusts the heating frequency based on the material of the ring forging, enabling it to adaptively optimize the skin effect depth. For materials with different resistivity and permeability, the system can automatically match the optimal frequency, ensuring that heat energy is efficiently deposited within the required heating depth. This avoids both surface overheating and insufficient core temperature, significantly improving heating quality and providing high versatility for various materials.

[0020] Preferably, step S21 further includes real-time acquisition of the radius of the annular forging, and using the real-time radius of the annular forging as the calculated value in step S2.

[0021] By substituting the real-time collected radius value into the calculation, the delay time parameter can be adaptively updated according to the change of ring size. This improvement solves the problem of error accumulation in the traditional fixed delay algorithm caused by the continuous increase of ring diameter during the rolling process, ensuring the accuracy of the temperature compensation position throughout the entire rolling process from the initial stage to the end, and greatly expanding the process applicability and processing accuracy of the equipment.

[0022] Preferably, step S2 further includes real-time acquisition of the main roller linear speed, and using the real-time linear speed of the main roller as the calculated value in step S2.

[0023] By substituting the real-time collected main roller speed into the calculation, the system can quickly respond to fluctuations in the main roller speed during the rolling process. Even if the main roller speed needs to be adjusted due to process requirements, the system can immediately recalculate and update the delay value, ensuring that the timing of the temperature replenishment is always synchronized with the actual linear speed of the ring, thereby enhancing the system's anti-interference capability and process stability.

[0024] Preferably, it also includes low temperature point selection: when the annular forging is found to have more than two low temperature points, the lowest temperature point is selected for heating.

[0025] The multi-low temperature point priority processing strategy can realize intelligent decision-making and energy optimization allocation under complex working conditions. By selecting the point with the most severe temperature drop for priority processing and allocating energy as needed within the total power limit, it ensures that the most serious defects are repaired first, and avoids system overload or local overheating that may be caused by multiple heating points operating at the same time. It improves the safety and economy of the system while ensuring the effect.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention provides a heating and constant temperature device for ring rolling process. Through the coordinated operation of controller, infrared thermometer and heating mechanism, it effectively overcomes the problem of local temperature drop in ring parts during processing, realizes near isothermal ring rolling process, significantly improves the uniformity and consistency of ring part structure, avoids defects such as coarse grains and cracking, thereby improving product quality; 2. This invention provides a heating and temperature control device for ring rolling process. By using an infrared thermometer to monitor the temperature of the ring forging in real time and non-contact, it is convenient to calculate the time when the low temperature reaches the heating mechanism, so that the controller can accurately grasp the adjustment time of the heating mechanism to achieve precise temperature compensation at the low temperature point. 3. This invention provides a heating and temperature control device for the rolling process. By adopting dynamic temperature compensation that matches the rolling cycle, the step of reheating the workpiece in the furnace is eliminated, which can realize the continuous and automated production process, greatly improve production efficiency and reduce energy consumption. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the heating mechanism described in this invention; Figure 2 This is a diagram showing the usage state of the heating mechanism described in this invention; Figure 3 This is a schematic diagram illustrating the principle of a ring rolling heating method according to the present invention; Figure 4 This is a control relationship diagram of a ring rolling heating method according to the present invention; Marked in the image: 1-Power supply, 2-Transformer, 3-Coil, 31-First arm, 32-Second arm, 33-Connecting part, 4-Distribution cabinet, 5-Cooling air conditioner, 6-Ring forging, 61-Temperature measuring point, 62-Heating point, 7-Main roller, 8-Core roller, 9-Conical roller. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0029] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but that it can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0031] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0032] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as 2, 3, 4, 5, 6, 7, 8, or 9, and can even exceed nine.

[0033] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0034] Example 1 This invention provides a heating and temperature control device for a ring rolling process, comprising a heating mechanism, a monitoring mechanism, and a control mechanism; like Figure 1 As shown, the heating mechanism includes a power supply 1, a distribution cabinet 4, a transformer 2, and a coil 3. The power supply 1, distribution cabinet 4, transformer 2, and coil 3 are electrically connected in sequence. The distribution cabinet 4 is also connected to a cooling air conditioner 5. Figure 2As shown, the coil 3 is provided with a U-shaped heating area. The coil 3 is used to be set near the main roller 7 of the ring rolling mill, and a section of the annular forging 6 in the circumferential direction is located in the U-shaped heating area. One side of the outer wall of the annular forging 6 abuts against the main roller 7, the inner wall of the annular forging 6 abuts against the core roller 8, and the upper end face and lower end face of the annular forging 6 abut against the tapered roller 9 respectively, which is used to control the height of the annular forging 6. Monitoring equipment includes an infrared thermometer, which is used to monitor the temperature of the ring forging 6; Control mechanism: includes a controller, and the infrared thermometer and the power supply 1 are electrically connected to the controller.

[0035] In use, an infrared thermometer is used to measure the temperature of a certain position of the annular forging 6 on the ring rolling mill in real time. When the temperature of the annular forging 6 at that position is lower than the process control value, the infrared thermometer transmits the signal to the controller. The controller calculates the time it takes for the temperature measuring point 61 to reach the heating point 62 based on the deviation between the preset temperature parameters and the real-time detection value, as well as the rotation speed of the main roller 7 and the distance between the temperature measuring point 61 and the heating point. It then outputs an adjustment command to the power supply 1 to control it to turn on or increase the output power. After receiving the command, the power supply 1 provides a larger current to the coil 3 through the transformer 2, which strengthens the alternating magnetic field generated by the coil 3. This causes the section of the annular forging 6 located in its U-shaped heating area to heat up rapidly due to the electromagnetic induction effect, thus compensating for the low temperature points of the annular forging 6, improving the uniformity and consistency of the annular structure, and avoiding defects such as coarse grains and cracking.

[0036] In an optional implementation, such as Figure 2 As shown, the coil 3 may include a first arm 31, a second arm 32, and a connecting part 33. The first arm 31, the second arm 32, and the connecting part 33 are connected to form a U-shaped heating area. The first arm 31 extends below the lower end face of the annular forging 6, and the second arm 32 extends above the upper end face of the annular forging 6, thereby covering a section of the annular forging 6 in the circumferential direction, thereby achieving local heating of the annular forging 6.

[0037] In one or more implementations, such as Figure 2 As shown, the control mechanism may also include an encoder, which is electrically connected to the controller. In use, the encoder is set on the main roller 7 of the ring rolling mill to collect the linear velocity of the main roller 7 in real time and feed it back to the controller. The controller obtains the key parameter of the real-time linear velocity of the ring forging 6, which enables the system to dynamically calculate and predict the precise time when the low temperature point moves to the heating point 62. This achieves precise synchronization between the temperature compensation action and the rotation position of the ring, solving the core technical problem of mismatch between temperature measurement and heating position caused by the rotation of the ring.

[0038] In one or more implementations, such as Figure 2As shown, the monitoring mechanism may also include an infrared rangefinder, which is electrically connected to the controller. In use, the infrared rangefinder is set near the main roller 7. The infrared rangefinder monitors the radius of the outer diameter of the ring in real time and feeds it back to the controller. The controller can dynamically correct the calculation error of the arc length of the heating point 62 caused by the change of the ring size. This design ensures that the calculation of the delay time remains highly accurate throughout the entire ring rolling process, no matter how much the diameter of the ring increases. This ensures the accuracy of the heat compensation position and improves the adaptability and reliability of the entire system at different processing stages.

[0039] Example 2 The present invention also provides a heating method for a ring rolling process, comprising the following steps: S1, such as Figure 3 As shown, an infrared thermometer is used to collect the temperature on one side of the annular forging 6 in real time; S2, such as Figure 3 As shown, the time delay required for the temperature measuring point 61 of the ring forging 6 to reach the heating point 62 is calculated using the following formula: ΔT = ΔL / V - T1, ΔL = 2πr × (φ / 360°). In the formula: ΔT is the delay time; ΔL is the distance from the temperature measuring point 61 to the heating point 62 along the rotation direction of the annular forging 6; V is the main roller linear velocity of 7; T1 is the response time of the heating mechanism; Φ is the central angle formed by the line connecting the temperature measuring point 61 and the center of the annular forging 6, along the rotation direction of the annular forging 6, to the line connecting the heating point 62 and the center of the annular forging 6; r is the radius of the annular forging; S3. After temperature measurement, delay the delay time to start the heating mechanism or increase the power of the heating mechanism.

[0040] This method calculates the travel time from the temperature measuring point to the heating point using a delay time calculation formula. When the temperature at the measuring point is lower than the normal range (800℃-1000℃), the heating mechanism automatically compensates for the temperature at the measuring point. This method comprehensively considers the relationship between the linear velocity of the ring rotation and the arc length of the fixed spatial angle, so that the triggering time of the heating command is strictly bound to the actual motion state of the ring, realizing precise temperature compensation for low-temperature points during movement. This is the key control core for realizing near-isothermal ring rolling process.

[0041] In one or more implementations, such as Figure 4 As shown, the heating method also includes power regulation: setting a temperature control value and adding a power regulator to the power supply of the heating mechanism, dynamically adjusting the power supply through the power regulator as the temperature changes.

[0042] In this solution, by setting a temperature control value and using dynamic power adjustment (such as PID algorithm), the system forms a closed-loop temperature feedback control system. It can respond to temperature fluctuations in real time and make stepless and smooth adjustments to the heating power, rather than a simple "on-off" control. This stabilizes the temperature of the ring part within a very narrow range of the set value (±5°C), truly achieving the process requirements of constant temperature forging and improving the consistency of product performance.

[0043] In one or more embodiments, the heating method further includes frequency regulation: a frequency switch is added to the power supply of the heating mechanism to automatically match the optimal frequency according to the material of the annular forging 6, so that the device can adaptively optimize the skin effect depth. For materials with different resistivity and permeability, the system can automatically match the optimal frequency to ensure that heat energy is efficiently deposited within the required heating depth, which avoids both surface overheating and insufficient core temperature, significantly improves the heating quality and has high versatility for various materials, such as high-temperature alloy parts: 800-3000Hz (skin depth 7-13mm), titanium alloy parts: 1000-6000Hz (skin depth 8-20mm).

[0044] In one or more embodiments, step S1 may further include: real-time acquisition of the radius of the annular forging 6 and real-time acquisition of the linear speed of the main roller 7.

[0045] The real-time collected radius of the annular forging 6 (i.e., the current radius of the forging) is substituted into step S2 for calculation, so that the delay time parameter can be adaptively updated according to the change of the ring size. This improvement solves the problem of error accumulation in the traditional fixed delay algorithm caused by the continuous increase of the ring diameter during the rolling process, and ensures the accuracy of the temperature compensation position throughout the entire process from the initial stage to the end of rolling. This greatly expands the process applicability and processing accuracy of the equipment. The reason for choosing the current radius is: First, the time interval between starting the heating mechanism and detecting the low temperature point is usually very short, and the radius of the annular forging 6 changes little, which has little impact on the final calculation result; Second, the cooling of the annular forging usually occurs in the second half of the rolling process. During this period, the radius of the annular forging has tended to be stable and the change is small. Therefore, using the current radius r of the annular forging 6 as the calculation value can obtain a more accurate result.

[0046] Substituting the real-time collected main roller 7 speed into step S2 for calculation, the system can quickly respond to fluctuations in the main roller 7 speed during the rolling process. Even if the main roller 7 speed needs to be adjusted due to process requirements, the system can immediately recalculate and update the delay value, ensuring that the timing of temperature replenishment is always synchronized with the actual linear speed of the ring, thereby enhancing the system's anti-interference capability and process stability.

[0047] Example of delay time calculation: φ=315°, r=0.5m; Calculation: ΔL = 2.7475m V = 0.5 m / s, T1 = 0.6 s Calculate: ΔT = ΔL / V - T1 = 5.495 - 0.6 = 4.895s When a low temperature point is detected at L1, a heating command is triggered after 4.895 seconds. The heating mechanism at L2 begins to compensate for heating after 0.6 seconds.

[0048] In one or more embodiments, the method further includes selecting a low-temperature point: when the annular forging 6 is detected to have more than two low-temperature points, the point with the lowest temperature is selected for heating.

[0049] In this solution, by prioritizing the treatment of the point with the most severe temperature drop and allocating energy as needed within the total power limit, it ensures that the most serious defects are repaired first, while avoiding system overload or local overheating that may be caused by multiple heating points 62 operating simultaneously. This improves the system's safety and economy while ensuring effectiveness.

[0050] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heating and temperature control device for a ring rolling process, characterized in that, Includes heating mechanisms, monitoring mechanisms, and control mechanisms; Heating mechanism: includes power supply (1), transformer (2) and coil (3), the power supply (1), transformer (2) and coil (3) are electrically connected in sequence, the coil (3) is provided with a U-shaped heating area, the coil (3) is used to be set near the main roller (7) of the ring rolling mill, and a section of the annular forging (6) in the circumferential direction is located in the U-shaped heating area; Monitoring apparatus: including an infrared thermometer, which is used to monitor the temperature of the ring forging (6); Control mechanism: includes a controller, wherein the infrared thermometer and the power supply (1) are electrically connected to the controller respectively.

2. The heating and temperature control device for the ring rolling process according to claim 1, characterized in that, The coil (3) includes a first arm (31), a second arm (32) and a connecting part (33). The first arm (31), the connecting part (33) and the second arm (32) are connected to form the U-shaped heating area. The first arm (31) and the second arm (32) are respectively located on the upper and lower end faces of the annular forging (6).

3. The heating and temperature control device for the ring rolling process according to claim 1, characterized in that, The control mechanism also includes an encoder, which is electrically connected to the controller and is used to be mounted on the main roller (7) of the ring rolling mill.

4. A heating and temperature control device for a ring rolling process according to any one of claims 1-3, characterized in that, The monitoring mechanism also includes an infrared rangefinder, which is electrically connected to the controller.

5. A heating method for a ring rolling process, characterized in that, Includes the following steps: S1. Real-time acquisition of the temperature on one side of the annular forging (6); S2. Calculate the time required for the temperature measuring point (61) of the ring forging (6) to reach the heating point (62). The calculation formula is: ΔT = ΔL / V - T1, ΔL = 2πr × (φ / 360). In the formula: ΔT is the delay time; ΔL is the distance from the temperature measuring point (61) to the heating point (62) along the rotation direction of the annular forging (6); V is the linear velocity of the main roller (7); T1 is the response time of the heating mechanism; Φ is the central angle formed by the line connecting the temperature measuring point (61) and the center of the annular forging (6) along the rotation direction of the annular forging (6) to the line connecting the heating point (62) and the center of the annular forging (6); r is the radius of the annular forging (6); S3. After temperature measurement, delay the delay time to start the heating mechanism or increase the power of the heating mechanism.

6. The heating method for a ring rolling process according to claim 5, characterized in that, It also includes power regulation: setting a temperature control value and dynamically adjusting the power of the heating mechanism as the temperature changes.

7. The heating method for a ring rolling process according to claim 5, characterized in that, It also includes frequency adjustment: adjusting the frequency of the heating mechanism according to the material of the annular forging (6).

8. The heating method for a ring rolling process according to claim 5, characterized in that, Step S1 also includes real-time acquisition of the radius of the annular forging (6), and using the real-time radius of the annular forging (6) as the calculated value in step S2.

9. A heating method for a ring rolling process according to claim 5, characterized in that, Step S1 also includes real-time acquisition of the linear velocity of the main roller (7), and using the real-time linear velocity of the main roller (7) as the calculated value in step S2.

10. A heating method for a ring rolling process according to any one of claims 5-9, characterized in that, It also includes the selection of low temperature points: when the ring forging (6) is found to have more than two low temperature points, the lowest temperature point is selected for heating.

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