A quenching treatment device for metal material processing

Abstract

This application relates to the field of metal material quenching technology, and particularly to a quenching treatment apparatus for metal material processing, comprising a quenching chamber, a workpiece carrying and conveying device, a sensing module, and a zoned controllable cooling assembly. The quenching chamber has a quenching chamber inside, and a workpiece inlet and a workpiece outlet. The workpiece carrying and conveying device is mounted on the quenching chamber, and its conveying direction is horizontally through the workpiece inlet, quenching chamber, and workpiece outlet along the length of the quenching chamber. The sensing module is located at the workpiece inlet of the quenching chamber. The zoned controllable cooling assembly includes a media distribution manifold, multiple independent high-speed switching valves, and multiple gas-liquid two-phase nozzles. The inlet of each independent high-speed switching valve is connected to the media distribution manifold, and the outlet is correspondingly connected to each gas-liquid two-phase nozzle. This invention can solve the problem of excessively fast or insufficient cooling rates caused by overall immersion or fixed spray quenching methods.

Description

Technical Field

[0001] This application belongs to the field of metal material quenching technology, and particularly relates to a quenching treatment device for metal material processing. Background Technology

[0002] A quenching treatment device is a piece of equipment used to quench metal materials. It aims to change the internal structure of metal materials through rapid cooling, thereby improving their mechanical properties such as hardness, wear resistance, and fatigue resistance.

[0003] Traditional quenching methods include integral immersion quenching or fixed spray quenching. Integral immersion quenching or fixed spray quenching is widely used in the processing of critical metal components, particularly suitable for core metal parts (such as automotive crankshafts and transmission gears, hydraulic valve blocks for engineering machinery, valve bodies and shaft components for oil and gas transportation) in industries like automotive manufacturing, construction machinery, rail transportation, and oil and gas transportation equipment. In these scenarios, the workpieces are often core load-bearing, transmission, or sealing components of equipment, requiring them to withstand alternating loads, medium-to-high pressure impacts, and long-term wear. Workpieces in the oil and gas transportation sector may also come into contact with flammable and explosive high-risk media, thus placing extremely high demands on the uniformity of hardness, consistency of hardened layer depth, and stability of the metallographic structure after quenching. In related technologies, the overall immersion or fixed spray quenching often adopts a rigid treatment mode with fixed parameters, that is, uniformly setting parameters such as immersion time, spray pressure or flow rate, and quenching medium temperature. However, the setting of fixed parameters lacks consideration for the differences in the actual working conditions of individual workpieces. As a result, some workpieces are scrapped due to large thermal stress caused by excessively fast cooling rates (such as thin walls, corners, protrusions, etc.), resulting in defects such as deformation, warping, and cracking. On the other hand, some workpieces are not identified in time because of insufficient cooling rates (such as thick walls, centers, grooves, etc.) and insufficient hardness, which cannot meet the usage requirements. Furthermore, if the quenched workpiece has undetected defects such as deformation or cracking, after it is assembled into terminal equipment and put into operation, the defective parts will quickly become stress concentration points under alternating loads, medium and high pressure conditions, causing component failure. For example, in valve body workpieces used in the oil and gas transportation field, quenching cracking defects can cause media leakage, or even serious safety accidents such as fires and explosions, in medium and high pressure high-risk media environments. Therefore, a solution is urgently needed. Summary of the Invention

[0004] This application provides a quenching treatment device for metal material processing, which can solve the problem that some workpieces cannot meet the usage requirements due to excessively fast cooling rate and insufficient cooling rate when quenching is performed by whole immersion or fixed spray quenching methods.

[0005] In a first aspect, embodiments of this application provide a quenching treatment apparatus for metal material processing, comprising: The quenching box has a quenching chamber inside, and the quenching box has a workpiece inlet and a workpiece outlet. A workpiece carrying and conveying device is installed on the quenching box, and the conveying direction is horizontally passing through the workpiece inlet, the quenching chamber and the workpiece outlet along the length of the quenching box, for conveying the workpiece to be quenched at a controllable speed. A sensing module, located at the workpiece inlet of the quenching chamber, is used to non-contactly measure the initial temperature field data of the lower surface of the workpiece to be quenched before it enters the quenching chamber; and A zoned controllable cooling assembly is disposed inside the quenching chamber and located below the workpiece carrying and conveying device; The partitioned controllable cooling assembly includes a media distribution main pipe, multiple independent high-speed switching valves, and multiple gas-liquid two-phase nozzles. The gas-liquid two-phase nozzles are disposed on the side wall of the quenching box and extend into the quenching chamber, and are located below the workpiece carrying and conveying device. The inlet of each independent high-speed switching valve is connected to the media distribution main pipe, and the outlet is correspondingly connected to each of the gas-liquid two-phase nozzles. Based on the initial temperature field data measured by the sensing module and combined with the real-time speed of the workpiece carrying and conveying device, after delay compensation calculation, the cooling jet is opened and closed in a predetermined sequence so that the cooling jet can accurately act on the target area of ​​the workpiece to be quenched.

[0006] The quenching apparatus for metal processing provided in this application acquires the initial temperature field data of the lower surface of the workpiece in real time through a sensing module. Combined with the real-time conveying speed of the workpiece bearing and conveying device, and after precise delay compensation calculations, it can control the opening and closing of independent high-speed switching valves according to a predetermined sequence. This allows the cooling jet to precisely act on the target area of ​​the workpiece, thereby achieving differentiated control of the cooling intensity in different areas. Compared to traditional overall immersion or fixed spray quenching methods, the apparatus of this application can better adapt to the differences in working conditions of individual workpieces, avoiding problems such as workpiece deformation, cracking, or insufficient hardness caused by excessively fast or insufficient cooling rates, significantly improving the quality and efficiency of the quenching process.

[0007] Secondly, embodiments of this application provide an intelligent quenching machine tool, including the quenching treatment device for metal material processing described in the first aspect above and a control device for controlling the quenching treatment device for metal material processing; the quenching treatment device for metal material processing and the control device are communicatively connected.

[0008] Thirdly, embodiments of this application provide a zoned quenching control method, applied to the intelligent quenching machine tool described in the second aspect above, the method comprising: Before the workpiece to be quenched enters the quenching chamber, the initial temperature field distribution map of the lower surface of the workpiece to be quenched is obtained through the sensing module. Based on the initial temperature field distribution map and the target cooling curve of the workpiece material, zoned cooling data is obtained; wherein, the zoned cooling data includes the location of the target cooling area, the required cooling intensity, and the corresponding nozzle action sequence of the gas-liquid two-phase nozzle; The real-time conveying speed of the workpiece carrying and conveying device is determined, the time delay and position offset from the sensing time to the execution point of each cooling zone are calculated, and the nozzle action sequence is corrected according to the time delay and the position offset to obtain corrected cooling data. The corresponding independent high-speed switching valve and the gas-liquid two-phase nozzle are controlled to operate according to the corrected cooling data, and a cooling command with transition intensity is inserted for areas with excessively large differences in adjacent cooling intensity to obtain the quenching control result; wherein, the quenching control result is used to indicate the quenching effect of each area of ​​the workpiece.

[0009] The technical solutions described in this application embodiment have at least the following technical effects: This application provides a zoned quenching control method. By acquiring the initial temperature field distribution map of the workpiece before it enters the quenching chamber, and then combining this map with the target cooling curve of the workpiece material to obtain zoned cooling data, the target cooling area, required cooling intensity, and corresponding nozzle action sequence are identified. The real-time conveying speed of the workpiece carrier and conveying device is determined, and time delay and positional offset are calculated to correct the nozzle action sequence, resulting in corrected cooling data. Based on this corrected cooling data, the operation of independent high-speed switching valves and gas-liquid two-phase nozzles is controlled. Furthermore, transition intensity cooling commands are inserted for areas with significant differences in adjacent cooling intensities to obtain the quenching control result. This method can precisely control the cooling intensity and cooling time of each zone according to the actual temperature field distribution and target cooling requirements of the workpiece, effectively avoiding problems such as workpiece deformation, cracking, or insufficient hardness caused by uneven cooling rates in traditional quenching methods. Simultaneously, by inserting transition intensity cooling commands, the uniformity and stability of the quenching effect are further improved, thereby significantly enhancing the quality and efficiency of metal material quenching treatment. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1This is a schematic diagram of the structure of a quenching treatment apparatus for metal material processing provided in an embodiment of this application; Figure 2 This is a schematic flowchart of a partitioned quenching control method provided in an embodiment of this application; Figure 3 This is a schematic diagram of the implementation process of step S200 in the partitioned quenching control method provided in an embodiment of this application; Figure 4 This is a schematic diagram of the implementation process of step S300 in the partitioned quenching control method provided in an embodiment of this application; Figure 5 This is a schematic diagram of the implementation process of step S400 in the partitioned quenching control method provided in an embodiment of this application; Figure 6 This is a flowchart illustrating steps S101 to S103 in a partitioned quenching control method provided in an embodiment of this application. Figure 7 This is a schematic diagram of the production control system for tin-plated copper alloy wire provided in the embodiments of this application; Figure 8 This is a schematic diagram of the control device provided in the embodiments of this application.

[0012] The following are the labeling elements in the figure: 100. Quenching treatment device for metal material processing; 10. Quenching box; 20. Workpiece carrying and conveying device; 30. Sensing module; 40. Zoned controllable cooling assembly; 41. Medium distribution main pipe; 42. High-speed switching valve; 43. Gas-liquid two-phase nozzle. Detailed Implementation

[0013] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0014] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0015] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0016] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0017] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0019] Traditional quenching methods include integral immersion quenching or fixed spray quenching. Integral immersion quenching or fixed spray quenching is widely used in the processing of critical metal components, particularly suitable for core metal parts (such as automotive crankshafts and transmission gears, hydraulic valve blocks for engineering machinery, valve bodies and shaft components for oil and gas transportation) in industries like automotive manufacturing, construction machinery, rail transportation, and oil and gas transportation equipment. In these scenarios, the workpieces are often core load-bearing, transmission, or sealing components of equipment, requiring them to withstand alternating loads, medium-to-high pressure impacts, and long-term wear. Workpieces in the oil and gas transportation sector may also come into contact with flammable and explosive high-risk media, thus placing extremely high demands on the uniformity of hardness, consistency of hardened layer depth, and stability of the metallographic structure after quenching. In related technologies, overall immersion or fixed spray quenching often adopts a rigid treatment mode with fixed parameters, that is, uniformly setting parameters such as immersion time, spray pressure or flow rate, and quenching medium temperature. However, the setting of fixed parameters lacks consideration for the differences in the actual working conditions of individual workpieces. As a result, some workpieces are scrapped due to large thermal stress caused by excessively fast cooling rates (such as thin walls, corners, protrusions, etc.), resulting in defects such as deformation, warping, and cracking. Meanwhile, some workpieces are not identified in time because of insufficient cooling rates (such as thick walls, centers, grooves, etc.), resulting in insufficient hardness and insufficient hardened layer depth, which cannot meet the usage requirements. Furthermore, if the quenched workpiece has undetected defects such as deformation or cracking, after it is assembled into terminal equipment and put into operation, the defective parts will quickly become stress concentration points under alternating loads, medium and high pressure conditions, causing component failure. For example, in valve body workpieces used in the oil and gas transportation field, quenching cracking defects can cause media leakage, or even serious safety accidents such as fires and explosions, in medium and high pressure high-risk media environments. Therefore, a solution is urgently needed.

[0020] Based on this, in order to improve the problem in the related technology that some workpieces cannot meet the usage requirements due to excessive cooling rate and others due to insufficient cooling rate when quenched by overall immersion or fixed spray quenching, the embodiments of this application provide the following solution.

[0021] This application provides a quenching treatment apparatus 100 for metal material processing. Please refer to [link to relevant documentation]. Figure 1 The quenching treatment device 100 for metal material processing includes a quenching chamber 10, a workpiece carrying and conveying device 20, a sensing module 30, and a zoned controllable cooling assembly 40, wherein: The quenching box 10 has a quenching chamber inside, and the quenching box 10 has a workpiece inlet and a workpiece outlet.

[0022] The workpiece carrying and conveying device 20 is set on the quenching box 10, and the conveying direction is horizontally passing through the workpiece inlet, quenching chamber and workpiece outlet along the length direction of the quenching box 10, for conveying the workpiece to be quenched at a controllable speed.

[0023] The sensing module 30 is located at the workpiece inlet of the quenching chamber 10 and is used to non-contactly measure the initial temperature field data of the lower surface of the workpiece to be quenched before the workpiece enters the quenching chamber.

[0024] The zoned controllable cooling component 40 is located inside the quenching chamber 10 and below the workpiece carrying and conveying device 20.

[0025] The zoned controllable cooling assembly 40 includes a media distribution main pipe 41, multiple independent high-speed switching valves 42, and multiple gas-liquid two-phase nozzles 43. The gas-liquid two-phase nozzles 43 are disposed on the side wall of the quenching box 10 and extend into the quenching chamber, and are located below the workpiece carrying and conveying device 20. The inlet of each independent high-speed switching valve 42 is connected to the media distribution main pipe 41, and the outlet is connected to each gas-liquid two-phase nozzle 43.

[0026] Based on the initial temperature field data measured by the sensing module 30 and combined with the real-time speed of the workpiece carrying and conveying device 20, after delay compensation calculation, the cooling jet is opened and closed in a predetermined sequence so that the cooling jet can accurately act on the target area of ​​the workpiece to be quenched.

[0027] It is understandable that the quenching box 10 is a structure that can provide a stable quenching environment for the workpiece to be quenched, and its material is usually selected as a material that is resistant to high temperature, corrosion and has good heat insulation performance. The workpiece carrying and conveying device 20 is a structure that can convey the workpiece to be quenched at a controllable speed. For example, it can be a combination structure including a drive motor, a conveyor belt and a support frame. The drive motor provides power, and the conveyor belt realizes the smooth conveying of the workpiece to be quenched. The support frame ensures the stability of the entire conveying process. The support frame can be made of high-strength alloy steel, which has sufficient rigidity and stability to withstand workpieces of different weights and sizes to be quenched, and will not deform or shake during the conveying process.

[0028] The sensing module 30 is used to non-contactly measure the initial temperature field of the lower surface of the workpiece before it enters the quenching chamber. The sensing module 30 can be, for example, an infrared thermal imager. These devices can quickly and accurately capture the temperature distribution on the surface of the workpiece. The infrared thermal imager receives infrared radiation emitted by an object and converts it into a visible image, thus intuitively displaying the temperature field distribution on the workpiece surface. The thermocouple array simultaneously measures the temperature at different locations on the workpiece surface using multiple thermocouple sensors, achieving synchronous monitoring of multiple temperatures. Specifically, when using an infrared thermal imager, it can be installed above the workpiece entrance of the quenching chamber 10 to capture the temperature field data of the lower surface of the workpiece from a top-down perspective.

[0029] The media distribution manifold 41 is a channel for supplying cooling media. Its material is typically a high-pressure resistant and corrosion-resistant metal, such as stainless steel, to prevent damage from media pressure or corrosion during long-term use. The media distribution manifold 41 may have multiple outlets, each connected to an independent high-speed switching valve 42. Precise control of the independent high-speed switching valve 42 enables on-demand distribution of the cooling media. The independent high-speed switching valve 42 is a component capable of rapidly responding to control signals and controlling the on / off state of the cooling media. Its short response time allows the cooling jet to accurately act on the target area of ​​the workpiece to be quenched. Specifically, the media distribution manifold 41 may be arranged in a ring or straight line within the quenching chamber 10.

[0030] The independent high-speed switching valve 42 is a component capable of rapidly responding to control signals and precisely controlling the flow of cooling medium. Internally, it can be a solenoid valve driven by either electromagnetic or piezoelectric forces, enabling precise timing control of the cooling jet. These independent high-speed switching valves 42 possess high sealing performance, effectively preventing cooling medium leakage and ensuring the stability and safety of the quenching process.

[0031] The gas-liquid two-phase nozzle 43 is a component capable of spraying a cooling medium in a gas-liquid mixture onto the surface of the workpiece to be quenched. The gas-liquid two-phase nozzle 43 can be, for example, a spiral structure or a fan-shaped structure. The spiral structure of the gas-liquid two-phase nozzle 43, through its internal spiral channel design, causes the cooling medium to form a spiral jet during spraying. This jet can more evenly cover the target area of ​​the workpiece to be quenched, improving the cooling effect. The spiral structure also enhances the contact and mixing between the cooling medium and the workpiece surface, further improving cooling efficiency. The fan-shaped gas-liquid two-phase nozzle 43, on the other hand, can spray the cooling medium in a fan shape, covering a larger area, suitable for workpiece areas requiring large-area cooling. This nozzle structure ensures that the cooling medium forms a uniform cooling layer on the workpiece surface, avoiding problems such as localized overheating or insufficient cooling.

[0032] As described above, this application provides a quenching apparatus 100 for metal material processing. The sensing module 30 acquires the initial temperature field data of the lower surface of the workpiece to be quenched in real time. Combined with the real-time conveying speed of the workpiece carrying and conveying device 20, and after precise delay compensation calculations, the independent high-speed switching valve 42 can be controlled to open and close according to a predetermined sequence. This allows the cooling jet to accurately act on the target area of ​​the workpiece to be quenched, thereby achieving differentiated control of the cooling intensity in different areas. Compared to traditional overall immersion or fixed spray quenching methods, the apparatus of this application can better adapt to the differences in working conditions of individual workpieces, avoiding problems such as workpiece deformation, cracking, or insufficient hardness caused by excessively fast or insufficient cooling rates, significantly improving the quality and efficiency of the quenching process.

[0033] In some embodiments, please refer to Figure 1 Multiple gas-liquid two-phase nozzles 43 are arranged in a matrix, with the row direction perpendicular to the conveying direction of the workpiece to be quenched and the column direction parallel to the conveying direction of the workpiece to be quenched.

[0034] This configuration, arranging multiple gas-liquid two-phase nozzles 43 in a matrix, with the rows perpendicular to the conveying direction of the workpiece and the columns parallel to it, enables more comprehensive and detailed cooling coverage of the workpiece surface. During workpiece conveying, each row of nozzles can cool different width areas of the workpiece, ensuring uniform cooling along the width direction; while each column of nozzles acts sequentially along the workpiece conveying direction, precisely controlling the start and end times of cooling based on the temperature field at different locations on the workpiece, thereby achieving differentiated cooling of different areas along the length of the workpiece.

[0035] In some embodiments, please refer to Figure 1 The medium distribution manifold 41 is a gas-liquid two-phase mixed medium distribution manifold 41.

[0036] The gas-liquid two-phase mixing medium distribution manifold 41 can be understood as a pipeline structure capable of simultaneously transporting gaseous and liquid cooling media. This design ensures that the cooling media is already in a gas-liquid mixed state before entering the independent high-speed switching valve 42, which helps to further improve the uniformity and cooling effect of the cooling jet. The gas-liquid two-phase mixing medium distribution manifold 41 can be equipped with a special mixing structure, such as spiral blades or a static mixer, to ensure thorough mixing of the gas and liquid and maintain a stable mixing ratio during transport. The gas-liquid two-phase mixing medium distribution manifold 41 also needs to possess sufficient pressure resistance and corrosion resistance to adapt to the requirements of different cooling media and working environments. Specifically, the gas-liquid two-phase mixing medium distribution manifold 41 can be structurally configured with multiple layers of spiral blades inside the manifold. These spiral blades are arranged at a certain angle and spacing. When the gas and liquid cooling media enter the manifold, they rotate and mix under the guidance of the spiral blades. During rotation, the gas and liquid continuously collide and merge, forming a uniform gas-liquid two-phase mixed medium. Meanwhile, the design of the helical blades enhances the flow stability of the medium, reduces the generation of eddies and turbulence, and ensures that the mixed medium can be smoothly delivered to each independent high-speed switching valve 42. Alternatively, a static mixer can be installed inside the main pipe. The static mixer consists of multiple specific mixing elements with complex geometries, such as twisted blades and intersecting grids. When the gas-liquid two-phase medium flows through the static mixer, it is divided and recombined under the action of the mixing elements, thereby achieving thorough mixing.

[0037] This configuration allows the gaseous and liquid cooling media to mix thoroughly before entering the independent high-speed switching valve 42, forming a uniform and stable gas-liquid two-phase mixture. When this mixture is sprayed onto the workpiece surface, it can more evenly cover the target area, improving the uniformity of the cooling effect and avoiding localized overheating or insufficient cooling caused by uneven media distribution. Furthermore, the design of the spiral blades or static mixer enhances the flow stability of the media, reduces pressure fluctuations and energy losses during transport, and ensures that the cooling media is delivered to each nozzle at a stable pressure and flow rate, thereby further improving the stability and reliability of the quenching process.

[0038] In some embodiments, please refer to Figure 1 The top of the quenching chamber 10 is equipped with a steam exhaust port.

[0039] This design allows the steam vent at the top of the quenching chamber 10 to promptly discharge the steam generated during the quenching process. During quenching, the cooling medium rapidly vaporizes upon contact with the high-temperature workpiece, generating a large amount of steam. If this steam cannot be discharged in time, it will accumulate within the quenching chamber, leading to problems such as increased pressure and uneven temperature. Increased pressure may damage the structure of the quenching chamber 10, affecting its service life and safety; uneven temperature will cause differences in the cooling rate of different parts of the workpiece, thus affecting the quenching quality and resulting in uneven hardness and inconsistent hardened layer depth.

[0040] This application embodiment also provides an intelligent quenching machine tool, which includes a quenching treatment device 100 for metal material processing and a control device for controlling the quenching treatment device 100 for metal material processing; the quenching treatment device 100 for metal material processing and the control device are communicatively connected.

[0041] It is understood that the control device can be an industrial control computer, a programmable logic controller (PLC), a microcontroller, or an embedded system—any device with data processing and signal transmission capabilities. An industrial control computer can quickly process large amounts of pressure signal data and generate precise control commands.

[0042] With this configuration, the intelligent quenching machine tool achieves intelligent control of the quenching process by combining the quenching treatment device 100 for metal material processing with the control device. The control device can receive the initial temperature field data transmitted by the sensing module 30 in real time and perform precise delay compensation calculations by combining it with the real-time speed information of the workpiece carrying and conveying device 20. Based on these calculation results, the control device can send control signals to the independent high-speed switching valve 42 according to a predetermined sequence, thereby precisely controlling the opening and closing timing and action area of ​​the cooling jet. This intelligent control method enables the quenching treatment device to dynamically adjust the cooling intensity according to the actual working conditions of the workpiece, so that the workpiece obtains a uniform and suitable cooling effect during the quenching process.

[0043] This application also provides a method for controlling zoned quenching. This method involves acquiring the initial temperature field distribution map of the workpiece before it enters the quenching chamber, and then combining this map with the target cooling curve of the workpiece material to obtain zoned cooling data. This clarifies the target cooling area, the required cooling intensity, and the corresponding nozzle action sequence. The real-time conveying speed of the workpiece carrier and conveying device is determined, and the time delay and positional offset are calculated to correct the nozzle action sequence, resulting in corrected cooling data. Based on the corrected cooling data, the independent high-speed switching valve and the gas-liquid two-phase nozzle are controlled. Furthermore, transition intensity cooling commands are inserted for areas with significant differences in adjacent cooling intensities to obtain the quenching control result. This method can precisely control the cooling intensity and cooling time of each area according to the actual temperature field distribution and target cooling requirements of the workpiece, effectively avoiding problems such as workpiece deformation, cracking, or insufficient hardness caused by uneven cooling rates in traditional quenching methods. Simultaneously, by inserting transition intensity cooling commands, the uniformity and stability of the quenching effect are further improved, thereby significantly enhancing the quality and efficiency of metal material quenching.

[0044] The partitioned quenching control method provided in this application embodiment can be applied to intelligent quenching machine tools. In this case, the intelligent quenching machine tool is the executing subject of the partitioned quenching control method provided in this application embodiment. This application embodiment does not impose any restrictions on the specific type of intelligent quenching machine tool.

[0045] To better understand the partitioned quenching control method provided in the embodiments of this application, the specific implementation process of the partitioned quenching control method provided in the embodiments of this application will be described by way of example below.

[0046] Figure 2 A schematic flowchart of a partitioned quenching control method provided in an embodiment of this application is shown. The partitioned quenching control method includes: S100: Before the workpiece to be quenched enters the quenching chamber, the initial temperature field distribution map of the lower surface of the workpiece to be quenched is obtained through the sensing module.

[0047] The initial temperature field distribution map can be understood as a visualized image of the temperature distribution obtained by comprehensively scanning the lower surface of the workpiece to be quenched using an infrared thermal imager or other temperature sensing equipment. This image can intuitively present the initial temperature state of each region on the workpiece surface, with different temperature regions distinguished by different colors or grayscale levels.

[0048] For example, before the workpiece to be quenched enters the quenching chamber, a comprehensive and accurate temperature scan of the lower surface of the workpiece is performed using a sensing module such as an infrared thermal imager, thereby obtaining an initial temperature field distribution map. The initial temperature field distribution map includes temperature information at various locations on the workpiece surface, providing basic data for subsequent zoned cooling control.

[0049] In one possible implementation, please refer to Figure 6 The methods also include: S101, set temperature monitoring points, and use standard samples to pass through the quenching chamber under a preset benchmark cooling intensity.

[0050] It is understandable that temperature monitoring points are locations set to more accurately monitor the temperature changes of the workpiece during quenching. Their locations can be chosen in areas where temperature changes are more sensitive; for example, for long shaft workpieces, temperature monitoring points can be set at different positions along the axial direction and on the radial surface and center; for disc-shaped workpieces, they can be set at different radii and on the upper and lower surfaces. Standard samples are workpieces with known material properties and dimensions, used to pass through the quenching chamber under a preset reference cooling intensity to establish a reference standard for temperature changes. The preset reference cooling intensity can be understood as a standard cooling parameter pre-set according to the workpiece material and quenching process requirements; it represents the cooling intensity corresponding to an ideal or standard cooling effect under this quenching device.

[0051] For example, a standard sample with the same material and size as the workpiece to be quenched is selected and placed on the workpiece carrying and conveying device. The standard sample passes through the quenching chamber at a preset conveying speed and a preset reference cooling intensity.

[0052] S102 records the sample temperature field when the standard sample passes through the sensing module, and the feedback temperature when it passes through the temperature monitoring point.

[0053] For example, during the passage of the standard sample through the quenching chamber, a sensing module performs real-time temperature scanning on the standard sample to acquire temperature field data. This data reflects the temperature distribution changes of the standard sample throughout its passage. Simultaneously, temperature sensors installed at temperature monitoring points record the feedback temperature as the standard sample passes through these points. This feedback temperature data more accurately reflects the temperature state of the standard sample at specific locations. Recording the sample temperature field and feedback temperature data provides accurate foundational data for subsequently establishing a temperature change model, enabling a more precise understanding of the temperature change patterns of the workpiece during the quenching process.

[0054] S103, based on the sample temperature field, feedback temperature and reference cooling intensity parameters, reverse-calibrates the key heat transfer coefficients in the database.

[0055] For example, the key heat transfer coefficient reflects the heat exchange efficiency between the cooling medium and the workpiece surface at different temperatures and cooling intensities. Specifically, the key heat transfer coefficient in the reverse calibration database is obtained through reverse calculation based on the sample temperature field data, feedback temperature data, and preset benchmark cooling intensity parameters. This reverse calculation can be achieved by establishing a mathematical model, using the sample temperature field data and feedback temperature data as input, and the benchmark cooling intensity parameters as known conditions. The unknown parameters in the mathematical model, i.e., the key heat transfer coefficient, are then solved. The mathematical model can be established by analyzing the heat transfer laws during the quenching process, combining relevant heat transfer theories, and constructing a set of equations describing the relationship between workpiece temperature changes, cooling intensity, and heat transfer coefficient. For example, considering factors such as convective heat transfer and radiative heat transfer on the workpiece surface, a comprehensive heat transfer model incorporating these heat transfer mechanisms can be established. Then, numerical calculation methods, such as the finite element method and the finite difference method, are used to solve the mathematical model. During the solution process, the initial guess value of the key heat transfer coefficient is continuously adjusted to ensure that the calculated sample temperature field and feedback temperature are as close as possible to the actually recorded data. When the error between the calculated result and the actual data meets the preset accuracy requirements, the accurate value of the key heat transfer coefficient can be determined.

[0056] This setup allows for more accurate prediction of the workpiece's temperature changes during the quenching process based on key heat transfer coefficients, thereby enabling precise control of cooling intensity and time, and further improving the quality and efficiency of the quenching process.

[0057] S200, based on the initial temperature field distribution map and the target cooling curve of the workpiece material, obtain the zoned cooling data; among which, the zoned cooling data includes the location of the target cooling area, the required cooling intensity, and the corresponding nozzle action sequence of the gas-liquid two-phase nozzle.

[0058] It is understandable that the target cooling curve can be understood as a pre-set curve based on the characteristics of the workpiece material and the requirements of the quenching process, describing the relationship between the ideal cooling rate that the workpiece should achieve at various positions during the quenching process and time.

[0059] For example, by comparing and analyzing the initial temperature field distribution map with the target cooling curve, the difference between the current temperature and the ideal cooling endpoint temperature of each region on the workpiece surface can be clearly identified, as well as the cooling intensity required to achieve these differences. Based on this information, target cooling regions can be defined, the specific cooling intensity required for each region can be determined, and the corresponding nozzle action sequence for the gas-liquid two-phase nozzles can be planned, including parameters such as opening time, closing time, and jet flow rate.

[0060] In one possible implementation, please refer to Figure 3 S200, based on the initial temperature field distribution diagram and the target cooling curve of the workpiece material, the zoned cooling data is obtained, including: S210 compares the initial temperature field distribution map with the phase transformation critical temperature range of the workpiece material to identify the initial high-temperature region that is above the upper limit of the critical temperature.

[0061] For example, identifying the initial high-temperature region above the critical temperature limit can be done by comparing the temperature values ​​at each location in the initial temperature field distribution map with the phase transformation critical temperature range of the workpiece material one by one. When the temperature value at a certain location is higher than the critical temperature limit, that location is marked as the initial high-temperature region.

[0062] S220 obtains zoned cooling data by matching one or more target nozzles to the initial high-temperature region based on the target cooling curve's cooling rate requirements for the initial high-temperature region and a pre-stored database.

[0063] It is understandable that the cooling rate requirement refers to the magnitude of temperature decrease per unit time specified in the target cooling curve for the initial high-temperature region. The pre-stored database contains matching information between the gas-liquid two-phase nozzle and different locations and cooling intensity requirements. This information can also be derived from a large amount of experimental data and theoretical calculations.

[0064] For example, based on the cooling rate requirements of the initial high-temperature region, a search and matching is performed in the database to find one or more suitable target nozzles for the initial high-temperature region. The combination of these target nozzles can meet the required cooling intensity of the region, thereby obtaining partitioned cooling data containing the location of the target cooling region, the required cooling intensity, and the corresponding nozzle action sequence.

[0065] This configuration allows for the matching of appropriate target nozzles to the initial high-temperature region based on its required cooling rate. This ensures that the region is cooled at a suitable intensity, preventing both insufficient cooling that could lead to substandard workpiece performance and excessive cooling that could cause cracking due to excessive internal stress. Furthermore, this precise zoned cooling method effectively improves the efficiency of the quenching process, reduces unnecessary energy consumption, and further enhances the quality and economic benefits of the entire metal quenching process.

[0066] S300 determines the real-time conveying speed of the workpiece bearing and conveying device, calculates the time delay and position offset from the sensing moment to the execution point of each cooling zone, and corrects the nozzle action sequence based on the time delay and position offset to obtain corrected cooling data.

[0067] It is understandable that correcting the cooling data is used to indicate the specific timing and parameters of the independent high-speed switching valve and the gas-liquid two-phase nozzle during the quenching process. Specifically, the real-time conveying speed of the workpiece carrying and conveying device directly affects the time when the workpiece arrives at each cooling zone. Due to factors such as speed fluctuations, acceleration during start-up and shutdown, there will be a time delay between the moment the initial temperature field distribution map is obtained from the sensing module and the actual point where the workpiece arrives at the cooling zone. Simultaneously, the workpiece's position will also shift during the conveying process. By accurately calculating these time delays and positional shifts, the previously obtained nozzle action sequence can be corrected. For example, if it is calculated that the workpiece will arrive at a certain cooling zone earlier, then the opening time of the corresponding nozzle needs to be advanced accordingly; if the positional shift causes the workpiece to deviate from the originally set center of the cooling zone, then the nozzle's spray angle or flow rate may also need to be adjusted to ensure uniform cooling.

[0068] For example, a speed sensor installed on the workpiece carrying and conveying device acquires its conveying speed data in real time. Based on this real-time conveying speed, and combined with the distance from the workpiece's location to the execution points of each cooling zone, the time delay and position offset from the sensing moment to each cooling zone execution point are calculated. For instance, if the conveying speed is v and the distance is s, the time delay t can be obtained using the time calculation formula t=s / v. The position offset is then determined by combining information such as the movement direction and initial position of the conveying device. Finally, based on the calculated time delay and position offset, the previously determined nozzle action sequence is corrected. For example, if the nozzle was originally scheduled to open at a certain moment, due to the time delay, the opening time needs to be advanced or delayed accordingly; if there is a position offset, the nozzle's spray position needs to be adjusted, thus obtaining corrected cooling data containing more accurate opening time, closing time, and spray flow rate parameters.

[0069] In one possible implementation, please refer to Figure 4S300, determine the real-time conveying speed of the workpiece carrying and conveying device, calculate the time delay and position offset from the sensing moment to the execution point of each cooling zone, and correct the nozzle action sequence based on the time delay and position offset to obtain corrected cooling data, including: S310: The pulse signal is determined based on the real-time conveying speed of the workpiece bearing and conveying device to obtain the real-time linear velocity of the workpiece to be quenched.

[0070] For example, the real-time linear velocity of the workpiece to be quenched can be obtained by installing a device such as a pulse encoder on the workpiece carrying and conveying device that can generate pulse signals. The device will generate corresponding pulse signals as the conveying device moves. The frequency of the pulse signal has a corresponding relationship with the real-time conveying speed of the conveying device. Based on this relationship, the real-time linear velocity of the workpiece to be quenched can be obtained by processing the pulse signal, for example by counting the number of pulses and the known conversion relationship between pulse and speed.

[0071] S320, based on the fixed installation position of the gas-liquid two-phase nozzle along the length of the quenching chamber and the fixed installation position of the sensing module, calculate the fixed distance from the sensing point to the gas-liquid two-phase nozzle.

[0072] For example, calculating the fixed distance from the sensing point to the gas-liquid two-phase nozzle can be done by determining the specific installation coordinates of the gas-liquid two-phase nozzle in the length direction from the design drawings or actual measurements of the quenching chamber, and simultaneously determining the installation coordinates of the sensing module. Using the formula for calculating the distance between two points, combined with the coordinate data, the fixed distance from the sensing point to each gas-liquid two-phase nozzle can be calculated. For example, if the sensing module is installed at a specific position at one end of the quenching chamber, and the gas-liquid two-phase nozzles are evenly distributed along the length direction of the chamber, their respective coordinates can be obtained by measurement or by consulting the design parameters, and then the distance from the sensing point to each nozzle can be calculated.

[0073] S330, then calculate the theoretical delay time of the gas-liquid two-phase nozzle.

[0074] For example, the theoretical delay time of a gas-liquid two-phase nozzle can be calculated by dividing the fixed distance from the sensing point to the nozzle by the real-time linear velocity of the workpiece to be quenched. For instance, if the fixed distance from the sensing point to a certain gas-liquid two-phase nozzle is L, and the real-time linear velocity of the workpiece to be quenched is v, the theoretical delay time t of the nozzle can be obtained using the time calculation formula t=L / v. This theoretical delay time represents the time required from when the sensing module acquires the initial temperature field distribution map to when the workpiece reaches the execution point of the cooling zone where the nozzle is located. This calculation provides an accurate basis for subsequent correction of the nozzle action sequence based on the time delay, ensuring that the nozzle opens or closes at the appropriate time to achieve precise zoned quenching control and improve the quality and effect of the quenching process.

[0075] S340 uses the preset action trigger time of each nozzle in the partitioned cooling data to obtain the corrected real-time action trigger time based on the theoretical delay time and real-time linear velocity.

[0076] For example, the corrected real-time action trigger time can be obtained by calculating the preset action trigger time originally set for each nozzle in the partitioned cooling data and the theoretical delay time corresponding to that nozzle calculated earlier. Specifically, if the preset action trigger time is T1 and the theoretical delay time is t, when the action needs to be advanced, the corrected real-time action trigger time T2 = T1 - t; when delay correction needs to be considered due to certain special circumstances, the corrected real-time action trigger time T2 = T1 + t. This allows for precise adjustment of the action trigger time of each nozzle based on the actual time delay during the workpiece conveying process, ensuring that the nozzles open or close accurately when the workpiece reaches the corresponding cooling area. This achieves precise partitioned quenching control, effectively improving the quality and stability of the quenching process, avoiding problems such as uneven cooling caused by time errors, and ensuring the consistency and reliability of the workpiece's performance after quenching.

[0077] S400 controls the corresponding independent high-speed switching valve and gas-liquid two-phase nozzle to operate according to the corrected cooling data, and inserts a cooling command with transition intensity for areas with large differences in adjacent cooling intensity to obtain the quenching control result; wherein, the quenching control result is used to indicate the quenching effect of each area of ​​the workpiece.

[0078] For example, obtaining the quenching control result can be achieved by transmitting the corrected cooling data to the control device of the quenching treatment apparatus. The control device then precisely controls the opening and closing times of the corresponding independent high-speed switching valves, as well as parameters such as the injection flow rate, injection angle, and injection time of the gas-liquid two-phase nozzles based on this data. During the control process, for areas with significant differences in adjacent cooling intensities, the control device inserts a cooling command with a transitional intensity. For instance, if one adjacent area requires a very high cooling intensity while the other requires a very low one, one or more transitional areas are set between them, gradually changing the cooling intensity according to a certain gradient to make the cooling process smoother and avoid adverse effects on the workpiece due to sudden changes in cooling intensity. Alternatively, the corresponding independent high-speed switching valves and gas-liquid two-phase nozzles can be controlled based on the corrected cooling data. Two target areas are identified by the areas with significant differences in adjacent cooling intensities, and a set of transition nozzles is defined on the physical boundary between the two target areas. Cooling intensity level commands between the two target areas are then assigned to the transition nozzles, and the quenching control result is obtained based on the cooling intensity level commands.

[0079] This configuration allows for precise control of the cooling intensity and time in each region based on the actual temperature field distribution and target cooling requirements of the workpiece. This effectively avoids problems such as workpiece deformation, cracking, or insufficient hardness caused by uneven cooling rates in traditional quenching methods. Furthermore, by inserting cooling commands with transitional intensity, the uniformity and stability of the quenching effect are further improved, thereby significantly enhancing the quality and efficiency of quenching treatment for metal materials.

[0080] In one possible implementation, please refer to Figure 5 S400, and for areas with excessively large differences in adjacent cooling intensities, insert cooling commands with transition intensities to obtain quenching control results, including: S410 determines two target regions based on the large difference in cooling intensity between adjacent regions, and defines a set of transition nozzles on the physical boundary between the two target regions.

[0081] For example, determining two target regions can be achieved by analyzing and correcting cooling data to identify adjacent regions where the difference in cooling intensity exceeds a preset threshold, and then designating these regions as target regions. At the physical boundary between the two target regions, a set of transition nozzles is defined based on factors such as the length and shape of the boundary. These transition nozzles are evenly distributed along the boundary, and their number and density are determined according to actual needs to achieve a smooth transition in cooling intensity. For instance, if the two target regions are adjacent in the length direction and the boundary is a straight line segment, then several transition nozzles can be evenly arranged along this straight line segment.

[0082] S420 assigns a cooling intensity level command between two target regions to the transition nozzle and obtains the quenching control result based on the cooling intensity level command.

[0083] For example, when assigning cooling intensity level instructions to transition nozzles, the cooling intensity values ​​of the two target areas must first be determined. For instance, if the cooling intensity of target area A is X and the cooling intensity of target area B is Y, and X is greater than Y, then the cooling intensity level instruction for the transition nozzles should be set between X and Y. Multiple intermediate levels can be assigned based on the number of transition nozzles, following a uniform decreasing or increasing pattern. Assuming there are five transition nozzles, the cooling intensity levels from the nozzle closest to target area A to the nozzle closest to target area B can be set sequentially as 0.8X, 0.6X, 0.4X, 0.2X, and 0.2Y (this is just an example; specific values ​​can be adjusted according to actual conditions). Based on these cooling intensity level instructions, the control device precisely controls parameters such as the spray flow rate and spray time of the transition nozzles, ensuring a smooth transition in cooling intensity between adjacent target areas and avoiding sudden changes in cooling intensity. This results in uniform and stable quenching control, guaranteeing that the quenching effect of each area of ​​the workpiece meets the requirements.

[0084] This configuration, by inserting transition nozzles between adjacent areas with significant differences in cooling intensity and assigning appropriate cooling intensity levels, effectively solves the problem of uneven stress distribution within the workpiece caused by abrupt changes in cooling intensity. When a workpiece experiences rapid changes in cooling intensity during quenching, the shrinkage rate of different areas will differ. This difference can create significant internal stress within the workpiece, potentially leading to cracking or deformation. The transition nozzles ensure a smooth transition in cooling intensity between adjacent areas, significantly reducing internal stress and improving the quenching quality of the workpiece. Furthermore, this refined cooling control method further enhances the consistency of quenching effects across different areas of the workpiece, maintaining the uniformity of overall workpiece performance and meeting the requirements of high-precision metal material processing.

[0085] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0086] Corresponding to the partitioned quenching control method described in the above embodiments, this application also provides a partitioned quenching control system, in which each unit can implement each step of the partitioned quenching control method. Figure 7 The diagram shows a structural block diagram of a partitioned quenching control system provided in an embodiment of this application. For ease of explanation, only the parts related to the embodiment of this application are shown.

[0087] Reference Figure 7 The partitioned quenching control system includes: The acquisition unit is used to acquire the initial temperature field distribution map of the lower surface of the workpiece to be quenched through the sensing module before the workpiece enters the quenching chamber. The unit is used to obtain zoned cooling data based on the initial temperature field distribution map and the target cooling curve of the workpiece material; wherein, the zoned cooling data includes the location of the target cooling area, the required cooling intensity, and the nozzle action sequence of the corresponding gas-liquid two-phase nozzle; The processing unit is used to determine the real-time conveying speed of the workpiece carrying and conveying device, calculate the time delay and position offset from the sensing time to the execution point of each cooling zone, and correct the nozzle action sequence based on the time delay and position offset to obtain corrected cooling data. The result unit is used to control the corresponding independent high-speed switching valve and gas-liquid two-phase nozzle to operate according to the corrected cooling data, and to insert a cooling command with transition intensity for areas with large differences in adjacent cooling intensity, so as to obtain the quenching control result; wherein, the quenching control result is used to indicate the quenching effect of each area of ​​the workpiece.

[0088] It should be noted that the information interaction and execution process between the above systems / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0089] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the system can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0090] Figure 8 This is a schematic diagram of the structure of a control device provided in an embodiment of this application. Figure 8 As shown, the control device 6 in this embodiment includes: at least one processor 60 ( Figure 8 Only one is shown in the image), at least one memory 61 ( Figure 8 (Only one is shown in the image) and a computer program 62 stored in the at least one memory 61 and executable on the at least one processor 60, wherein when the processor 60 executes the computer program 62, it causes the control device 6 to perform the steps in any of the above embodiments of the quenching treatment apparatus for metal material processing, or causes the control device 6 to perform the functions of each module / unit in the above embodiments of the systems.

[0091] For example, the computer program 62 may be divided into one or more modules / units, which are stored in the memory 61 and executed by the processor 60 to complete this application. The one or more modules / units may be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program 62 in the control device 6.

[0092] The control device 6 can be a desktop computer, laptop, or other computing device. This control device may include, but is not limited to, a processor 60 and a memory 61. Those skilled in the art will understand that... Figure 8This is merely an example of control device 6 and does not constitute a limitation on control device 6. It may include more or fewer components than shown, or combine certain components, or different components, such as input / output devices, network access devices, buses, etc.

[0093] The processor 60 can be a Central Processing Unit (CPU), or it can be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0094] In some embodiments, the memory 61 may be an internal storage unit of the control device 6, such as a hard disk or memory of the control device 6. In other embodiments, the memory 61 may be an external storage device of the control device 6, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the control device 6. Furthermore, the memory 61 may include both internal storage units and external storage devices of the control device 6. The memory 61 is used to store operating systems, applications, bootloaders, data, and other programs, such as the program code of computer programs. The memory 61 can also be used to temporarily store data that has been output or will be output.

[0095] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0096] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0097] In the embodiments provided in this application, it should be understood that the disclosed partitioned quenching control system, intelligent quenching machine tool, and partitioned quenching control method can be implemented in other ways. For example, the partitioned quenching control system and intelligent quenching machine tool embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0098] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0099] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A quenching treatment apparatus for metal material processing, characterized in that, The quenching treatment device for metal material processing includes: The quenching box has a quenching chamber inside, and the quenching box has a workpiece inlet and a workpiece outlet. A workpiece carrying and conveying device is installed on the quenching box, and the conveying direction is horizontally passing through the workpiece inlet, the quenching chamber and the workpiece outlet along the length of the quenching box, for conveying the workpiece to be quenched at a controllable speed. A sensing module, located at the workpiece inlet of the quenching chamber, is used to non-contactly measure the initial temperature field data of the lower surface of the workpiece to be quenched before it enters the quenching chamber; and A zoned controllable cooling assembly is disposed inside the quenching chamber and located below the workpiece carrying and conveying device; The partitioned controllable cooling assembly includes a media distribution main pipe, multiple independent high-speed switching valves, and multiple gas-liquid two-phase nozzles. The gas-liquid two-phase nozzles are disposed on the side wall of the quenching box and extend into the quenching chamber, and are located below the workpiece carrying and conveying device. The inlet of each independent high-speed switching valve is connected to the media distribution main pipe, and the outlet is correspondingly connected to each of the gas-liquid two-phase nozzles. Based on the initial temperature field data measured by the sensing module and combined with the real-time speed of the workpiece carrying and conveying device, after delay compensation calculation, the cooling jet is opened and closed in a predetermined sequence so that the cooling jet can accurately act on the target area of ​​the workpiece to be quenched.

2. The quenching apparatus for metal material processing as described in claim 1, characterized in that, The multiple gas-liquid two-phase nozzles are arranged in a matrix, with the row direction perpendicular to the conveying direction of the workpiece to be quenched and the column direction parallel to the conveying direction of the workpiece to be quenched.

3. The quenching apparatus for metal material processing as described in claim 1, characterized in that, The media distribution manifold is a gas-liquid two-phase mixed media distribution manifold.

4. The quenching apparatus for metal material processing as described in claim 1, characterized in that, The top of the quenching chamber is equipped with a steam vent.

5. An intelligent quenching machine tool, characterized in that, The device includes a quenching apparatus for processing metal materials according to any one of claims 1 to 4 and a control device for controlling the quenching apparatus for processing metal materials; the quenching apparatus for processing metal materials and the control device are communicatively connected.

6. A method for controlling zoned quenching, characterized in that, The method, applied to the intelligent quenching machine tool of claim 5, comprises: Before the workpiece to be quenched enters the quenching chamber, the initial temperature field distribution map of the lower surface of the workpiece to be quenched is obtained through the sensing module. Based on the initial temperature field distribution map and the target cooling curve of the workpiece material, zoned cooling data is obtained; wherein, the zoned cooling data includes the location of the target cooling area, the required cooling intensity, and the corresponding nozzle action sequence of the gas-liquid two-phase nozzle; The real-time conveying speed of the workpiece carrying and conveying device is determined, the time delay and position offset from the sensing time to the execution point of each cooling zone are calculated, and the nozzle action sequence is corrected according to the time delay and the position offset to obtain corrected cooling data. The corresponding independent high-speed switching valve and the gas-liquid two-phase nozzle are controlled to operate according to the corrected cooling data, and a cooling command with transition intensity is inserted for areas with excessively large differences in adjacent cooling intensity to obtain the quenching control result; wherein, the quenching control result is used to indicate the quenching effect of each area of ​​the workpiece.

7. The partitioned quenching control method as described in claim 6, characterized in that, The step of obtaining zoned cooling data based on the initial temperature field distribution map and the target cooling curve of the workpiece material includes: The initial temperature field distribution map is compared with the phase transformation critical temperature range of the workpiece material to identify the initial high temperature region that is higher than the upper limit of the critical temperature. Based on the cooling rate requirements of the target cooling curve for the initial high-temperature region and the pre-stored database, the partitioned cooling data is obtained by matching one or more target nozzles for the initial high-temperature region.

8. The partitioned quenching control method as described in claim 6, characterized in that, The process of determining the real-time conveying speed of the workpiece carrying and conveying device, calculating the time delay and position offset from the sensing moment to the execution point of each cooling zone, and correcting the nozzle action sequence based on the time delay and the position offset to obtain corrected cooling data includes: The pulse signal is determined based on the real-time conveying speed of the workpiece bearing and conveying device to obtain the real-time linear velocity of the workpiece to be quenched. Based on the fixed installation position of the gas-liquid two-phase nozzle along the length of the quenching chamber and the fixed installation position of the sensing module, calculate the fixed distance from the sensing point to the gas-liquid two-phase nozzle. Next, calculate the theoretical delay time of the gas-liquid two-phase nozzle; The preset action trigger time of each nozzle in the partitioned cooling data is used to obtain the corrected real-time action trigger time based on the theoretical delay time and the real-time linear velocity.

9. The partitioned quenching control method as described in claim 6, characterized in that, For regions with excessively large differences in adjacent cooling intensities, a cooling command with transition intensity is inserted to obtain the quenching control result, including: Two target regions are determined based on the adjacent regions with excessively large differences in cooling intensity, and a set of transition nozzles is defined on the physical boundary between the two target regions; A cooling intensity level command between the two target regions is assigned to the transition nozzle, and the quenching control result is obtained based on the cooling intensity level command.

10. The partitioned quenching control method as described in claim 6, characterized in that, The method further includes: Set up temperature monitoring points and use standard samples to pass through the quenching chamber under a preset benchmark cooling intensity; Record the sample temperature field when the standard sample passes through the sensing module, and the feedback temperature when it passes through the temperature monitoring point; Based on the sample temperature field, the feedback temperature, and the reference cooling intensity parameters, the key heat transfer coefficients in the database are calibrated in reverse.

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