Hot isostatic pressing equipment heat shield top micro-deformation control method and device

Abstract

The invention provides a micro-deformation control method and device for the top of a heat shield of hot isostatic pressing equipment. The hot isostatic pressing equipment comprises an ultrahigh-pressure container and an inverted-cup-shaped heat screen, the heat screen is provided with at least two layers of overall tops, a non-contact micro-deformation sensor is arranged above the at least two layers of overall tops, and a supporting structure below the heat screen is fixedly connected with the heat screen through a fastening piece capable of adjusting tightness. The hot isostatic pressing equipment heat shield top micro-deformation control method comprises the steps that micro-deformation data of at least two layers of overall tops are obtained; under the condition that the micro-deformation data exceed a set first threshold value, temperature sensor data and pressure sensor data are obtained; according to the micro-deformation data, the temperature sensor data and the pressure sensor data, the working state of the heat insulation screen is determined; and adjusting the tightness of the fastener and / or the heating power of the heating body according to the working state. According to the hot isostatic pressing equipment, the hot isostatic pressing treatment effect of the hot isostatic pressing equipment can be guaranteed when the top of the heat screen deforms.

Description

Technical Field

[0001] This application relates to the field of hot isostatic pressing equipment technology, and in particular to a method and device for controlling the micro-deformation of the top of the heat insulation screen of hot isostatic pressing equipment. Background Technology

[0002] Hot isostatic pressing (HIP) is an advanced manufacturing process that places a workpiece in a sealed container and applies a high-temperature, high-pressure environment to densify the material, eliminate internal defects, and improve its performance. The high-temperature environment generated during this process often adversely affects the stability of HIP equipment and the surrounding environment. Heat shields can be used to isolate high-temperature areas, reduce heat loss to the surrounding environment, and protect other parts of the HIP equipment from the effects of high temperatures.

[0003] By effectively managing heat transfer, heat shield devices can improve the energy efficiency of hot isostatic pressing (HIP) equipment, ensure its stable operation, and extend its service life. Under high temperature and pressure, the inert gas, which serves as the pressure transmission medium in HIP equipment, expands, impacting various parts of the heat shield, especially the top. If the top of the heat shield deforms under pressure, it will affect the heat conduction path and temperature gradient uniformity within the heat shield, thus impacting the overall HIP processing effect. Summary of the Invention

[0004] In view of this, the present application provides a method and apparatus for controlling the micro-deformation of the top of the heat insulation screen of a hot isostatic pressing (HIP) equipment, so as to solve the problem of reduced HIP treatment effect caused by deformation of the top of the heat insulation screen of the HIP equipment in the prior art.

[0005] A first aspect of this application provides a method for controlling the micro-deformation of the top of a heat shield in a hot isostatic pressing (HIP) apparatus. The HIP apparatus includes an ultra-high pressure vessel and an inverted cup-shaped heat shield disposed within the ultra-high pressure vessel. The heat shield has at least two integral top layers, with non-contact micro-deformation sensors disposed above the at least two integral top layers. A heating element, a temperature sensor, and a pressure sensor are disposed inside the heat shield. A support structure is disposed below the heat shield, and the support structure is fixedly connected to the heat shield by fasteners with adjustable tightness. The method for controlling the micro-deformation of the top of the heat shield in the HIP apparatus includes: acquiring the micro-deformation of the at least two integral top layers. The deformation data and micro-deformation data are monitored by a non-contact micro-deformation sensor. When the micro-deformation data exceeds a set first threshold, temperature sensor data and pressure sensor data are acquired. The temperature sensor data is measured by the temperature sensor, and the pressure sensor data is measured by the pressure sensor. Based on the micro-deformation data, temperature sensor data, and pressure sensor data, the working state of the heat insulation screen is determined. The working state describes the micro-deformation data of the heat insulation screen and the corresponding temperature and pressure zones. The tightness of the fasteners and / or the heating power of the heating element are adjusted according to the working state to control the micro-deformation data within a preset range.

[0006] In one embodiment, before acquiring micro-deformation data for at least two layers of the overall top, the method further includes setting the initial heating rate and temperature gradient of the heating element based on the material and structural design of the heat insulation screen.

[0007] In one embodiment, the method further includes generating an alarm signal to alert the heat insulation screen to an abnormal operating state when the temperature sensor data exceeds a preset second threshold and / or the pressure sensor data exceeds a preset third threshold.

[0008] A second aspect of this application provides a micro-deformation control device for the top of a heat shield in a hot isostatic pressing (HIP) system. The HIP system includes an ultra-high pressure vessel and an inverted cup-shaped heat shield disposed within the ultra-high pressure vessel. The heat shield has at least two integral top layers. A non-contact micro-deformation sensor is disposed above the at least two integral top layers. A heating element, a temperature sensor, and a pressure sensor are disposed inside the heat shield. A support structure is disposed below the heat shield. The support structure is fixedly connected to the heat shield by fasteners with adjustable tightness. The micro-deformation control device for the top of the heat shield in the HIP system includes: a first acquisition module, used to acquire micro-deformation data of the at least two integral top layers; the micro-deformation... The data is monitored by a non-contact micro-deformation sensor; the second acquisition module is used to acquire temperature sensor data and pressure sensor data when the micro-deformation data exceeds a set first threshold. The temperature sensor data is measured by the temperature sensor, and the pressure sensor data is measured by the pressure sensor; the determination module is used to determine the working state of the heat insulation screen based on the micro-deformation data, temperature sensor data, and pressure sensor data. The working state describes the micro-deformation data of the heat insulation screen and the corresponding temperature and pressure zones; the adjustment module is used to adjust the tightness of the fasteners and / or the heating power of the heating element according to the working state to control the micro-deformation data within a preset range.

[0009] In one embodiment, the adjustment module is used to generate an adjustment signal according to the working state to adjust the tightness of the fastener and / or the heating power of the heating element; the micro-deformation control device at the top of the heat insulation screen of the hot isostatic pressing equipment further includes: a temperature controller, used to generate a temperature control signal for the heating element according to the adjustment signal to control the heating power of the heating element; and a tightness controller, used to generate a motor drive signal to control the tightness of the fastener according to the adjustment signal to control the tightness of the fastener.

[0010] In one embodiment, the at least two-layer integral top consists of at least two segments with independent insulation materials and sealing structures.

[0011] In one embodiment, at least two sealing structures are provided between the ultra-high pressure vessel and the heat insulation screen.

[0012] In one embodiment, a reflective layer is provided on the inner wall of the heat insulation screen, and the reflectivity of the reflective layer is higher than a preset reflectivity threshold.

[0013] In one embodiment, at least two non-contact micro-deformation sensors are disposed above the top of at least two layers; and / or, multiple temperature sensors for detecting the temperature at different locations inside the heat insulation screen and multiple pressure sensors for detecting the pressure at different locations inside the heat insulation screen are disposed inside the heat insulation screen.

[0014] In one embodiment, the non-contact micro-deformation sensor includes a capacitive deformation sensor or an optical deformation sensor.

[0015] The beneficial effects of this application embodiment compared with the prior art are as follows: by setting a non-contact micro-deformation sensor on the top of the heat insulation screen of the hot isostatic pressing equipment, the working state of the heat insulation screen is determined when the micro-deformation data of the non-contact micro-deformation sensor exceeds a set first threshold, and the tightness of the fasteners and / or the heating power of the heating element are adjusted according to the working state, thereby accurately controlling the micro-deformation of the top of the heat insulation screen, effectively reducing the structural deformation caused by the high temperature and high pressure environment, and improving the stability and reliability of the entire hot isostatic pressing equipment. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of a hot isostatic pressing apparatus provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the top of the heat insulation screen of a hot isostatic pressing equipment provided in an embodiment of this application; Figure 3 This is a flowchart illustrating a method for controlling the micro-deformation of the top of a thermal isostatic pressing equipment heat insulation screen, as provided in an embodiment of this application. Figure 4 This is a schematic diagram of the structure of a micro-deformation control device for the top of a thermal isostatic pressing equipment heat insulation screen provided in an embodiment of this application. Detailed Implementation

[0018] 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, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0019] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] Furthermore, it should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0021] A heat shield device achieves effective heat insulation of high-temperature areas through the coordinated operation of key components such as the heat shield body, reflective layer, insulation material layer, supporting structure, and sealing device. This reduces heat loss and thermal impact on the surrounding environment, improving the energy utilization efficiency and operational stability of hot isostatic pressing (HIP) equipment. HIP equipment generates a high-temperature, high-pressure environment during operation, and the heat shield device must maintain stability and integrity under these extreme conditions. It should be able to withstand the thermal stress, mechanical stress, and chemical corrosion caused by high temperature and pressure, avoiding deformation, damage, or failure.

[0022] Heat shield devices need to significantly improve their thermal insulation performance to effectively reduce heat conduction to other parts of the hot isostatic pressing (HIP) equipment under high-temperature environments, thereby maintaining stable and uniform internal temperatures. This requires heat shield materials to have extremely low thermal conductivity and good thermal stability, enabling them to maintain efficient thermal insulation under prolonged high-temperature conditions.

[0023] With the continuous advancement of materials science and manufacturing technology, the heat insulation screen devices for hot isostatic pressing equipment are also constantly developing and improving. The application of new heat insulation materials and advanced manufacturing processes has significantly improved the performance of heat insulation screen devices.

[0024] Although existing technologies employ sealing techniques, the sealing performance of heat shield devices can be challenged under extreme operating conditions. Prolonged exposure to high temperatures and pressures can cause material aging, deformation, or damage, thereby affecting the sealing effect of the heat shield and leading to heat leakage.

[0025] To maintain the stability and positioning accuracy of heat shields, specialized support and fixing structures are typically designed. These structures must not only withstand the weight of the heat shield itself but also resist vibrations and impacts generated during operation. The design and manufacturing of the support and fixing structures for heat shield installations may have certain limitations. Under high temperature and high pressure environments, the support structure may be affected by thermal stress, leading to deformation or loosening, which in turn affects the stability and positioning accuracy of the heat shield.

[0026] To overcome the above problems, this application provides a method and device for controlling the micro-deformation of the top of the heat insulation screen of a hot isostatic pressing equipment.

[0027] The following describes in detail, with reference to the accompanying drawings, a method and apparatus for controlling the micro-deformation of the top of a thermal isostatic pressing equipment heat insulation screen according to an embodiment of this application.

[0028] Figure 1 This is a schematic diagram of the structure of a hot isostatic pressing apparatus provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the top of the heat insulation screen of a hot isostatic pressing equipment provided in an embodiment of this application; Figure 3 This is a flowchart illustrating a method for controlling the micro-deformation of the top of a thermal isostatic pressing equipment heat insulation screen, as provided in an embodiment of this application. Figure 4 This is a schematic diagram of the structure of a micro-deformation control device for the top of a heat insulation screen in a hot isostatic pressing equipment, provided in an embodiment of this application. The following will be combined with... Figures 1 to 4 The method and apparatus for controlling the micro-deformation of the top of the thermal insulation screen of the hot isostatic pressing equipment in the embodiments of this application are described in detail.

[0029] This application provides a method for controlling the micro-deformation of the top of the heat insulation screen in a hot isostatic pressing (HIP) system. For example... Figure 1 As shown, the hot isostatic pressing equipment includes an ultra-high pressure vessel 100 and an inverted cup-shaped heat shield 200 disposed within the ultra-high pressure vessel. In this embodiment, the heat shield has at least two integral top layers, with a non-contact micro-deformation sensor disposed above the at least two integral top layers. A heating element, a temperature sensor, and a pressure sensor are disposed inside the heat shield. A support structure 300 is disposed below the heat shield, and the support structure is fixedly connected to the heat shield 200 by fasteners 400 with adjustable tightness.

[0030] like Figure 2 The heat insulation screen shown has a three-layer overall top, namely the top layer 201, the middle layer 202 and the bottom layer 203, but it is not limited to this in actual applications.

[0031] like Figure 3 As shown, the method for controlling the micro-deformation at the top of the thermal insulation screen of hot isostatic pressing equipment includes: S301. Obtain micro-deformation data of at least two layers of the overall top, the micro-deformation data being monitored by a non-contact micro-deformation sensor.

[0032] S302. When the micro-deformation data exceeds the set first threshold, acquire temperature sensor data and pressure sensor data. The temperature sensor data is obtained by measuring the temperature sensor, and the pressure sensor data is obtained by measuring the pressure sensor.

[0033] S303. Based on the micro-deformation data, temperature sensor data, and pressure sensor data, determine the working status of the heat insulation screen. The working status describes the micro-deformation data of the heat insulation screen and the corresponding temperature and pressure zones.

[0034] Specifically, the operating status includes micro-deformation data and corresponding temperature and pressure zones. There are multiple temperature and pressure zones, including zones with normal temperature and pressure, zones with abnormal temperature and pressure, zones with normal temperature and abnormal pressure, and zones with abnormal temperature and normal pressure. Based on the zone status, it is possible to determine how to implement micro-deformation control measures. Whether the temperature and pressure are normal is determined by comparing the temperature sensor data and pressure sensor data with preset standard data.

[0035] S304. Adjust the tightness of the fasteners and / or the heating power of the heating element according to the working conditions to control the micro-deformation data within the preset range.

[0036] Specifically, adjusting the tightness of fasteners and / or the heating power of the heating element are different micro-deformation control measures. First, the specific micro-deformation control measures can be determined according to the temperature and pressure zones. Then, the micro-deformation control amount is determined based on the micro-deformation data. The micro-deformation control amount includes the tightness adjustment amount and the heating power adjustment amount.

[0037] Existing heat insulation barrier devices mostly rely on traditional monitoring and control methods, lacking intelligent technical support. This may result in inaccurate and untimely real-time monitoring and precise control of the heat insulation barrier's operating status, affecting the heat insulation effect and the overall performance of the thermal isostatic pressing equipment. The technical solution of this application embodiment can effectively control high airtightness and micro-deformation by real-time monitoring of the micro-deformation at the top of the heat insulation barrier and combining it with other parameters such as temperature and pressure, using specific control logic to adjust the structure or heating state of the heat insulation barrier.

[0038] The first threshold in this embodiment can be set according to actual needs. In the technical solution of this embodiment, adaptive and intelligent control algorithms can be applied to automatically adjust control parameters such as the first threshold according to the actual working environment and conditions, so as to maintain the high airtightness of the heat insulation screen and reduce micro-deformation. For example, the trend and law of micro-deformation can be accurately grasped through precise measurement and data analysis, and intelligent control algorithms can be developed based on real-time monitoring data to automatically adjust the support structure and heating power of the heat insulation screen. Through algorithm learning and optimization, precise control of micro-deformation can be achieved, and a high airtightness state can be maintained.

[0039] In this embodiment, a non-contact micro-deformation sensor is installed on the top of the heat insulation screen to monitor its micro-deformation in real time. The selected non-contact micro-deformation sensor possesses high sensitivity and stability, accurately reflecting the deformation of the top of the heat insulation screen. The intelligent control system in this embodiment can fine-tune the heat insulation screen based on the data from the non-contact micro-deformation sensor. Specifically, the intelligent control system can automatically adjust the support structure or heating power of the heat insulation screen according to a preset deformation threshold to maintain a stable shape and high airtightness at the top of the heat insulation screen. Furthermore, the technical solution in this embodiment includes temperature sensors installed inside the heat insulation screen and at key locations to monitor the temperature distribution and changes in the heat insulation screen in real time. Based on the temperature monitoring data, the intelligent control system adjusts parameters such as heating power and heating / cooling rate to maintain a stable and uniform temperature distribution inside the heat insulation screen.

[0040] The technical solution adopted in this application embodiment can achieve high airtightness and micro-deformation control of at least two integral top layers of the thermal insulation screen for hot isostatic pressing equipment, ensuring the stability and sealing performance of the thermal insulation screen under extreme high temperature and high pressure environments. Furthermore, by employing advanced materials, structural design, and intelligent control systems, precise control of micro-deformation at the top of the thermal insulation screen can be achieved, maintaining a high airtightness state.

[0041] The hot isostatic pressing equipment of this application embodiment can avoid performance degradation or structural failure of the heat insulation screen due to micro-deformation under high temperature and high pressure environment, ensure the long-term stable operation of the hot isostatic pressing equipment, and effectively maintain the stability of the internal process conditions of the hot isostatic pressing equipment.

[0042] In this embodiment, materials with high elastic modulus and low coefficient of thermal expansion, such as special alloys or high-performance composite materials, can be selected as the main material for the top of the heat insulation screen. These materials have excellent resistance to deformation and high-temperature stability, effectively reducing the micro-deformation of the top of the heat insulation screen under high temperature and pressure. Insulation materials with extremely low thermal conductivity, high temperature resistance, and good chemical stability can be selected. These materials can effectively reduce heat transfer and improve insulation performance. A reflective layer can be set inside the heat insulation screen, using a high-reflectivity material to reflect thermal radiation back to the heating area, further reducing heat loss. Reinforcing ribs or a support frame can be added to the top of the heat insulation screen to improve the rigidity and stability of the overall structure. The reinforcing ribs and support frame are made of high-strength materials that match the main material, ensuring no significant deformation occurs under high temperature and pressure. A multi-layer insulation structure can be set between the top of the heat insulation screen and the hot isostatic pressing equipment, with the selection and thickness of each layer's material precisely calculated to maximize the insulation effect and reduce thermal stress.

[0043] In this embodiment, the interlayer sealing structure of the heat insulation screen can be optimized by employing high-temperature and high-pressure resistant sealing materials and technologies to ensure the sealing performance of the heat insulation screen under high-temperature and high-pressure environments and prevent heat leakage. High-temperature and corrosion-resistant sealing materials, including flexible sealing materials, can be selected. High-temperature and corrosion-resistant sealing materials possess excellent sealing performance and stability, enabling them to maintain a sealed state for extended periods under high-temperature and high-pressure environments. Flexible sealing structures can better adapt to the micro-deformation of the top of the heat insulation screen, reducing sealing gaps and improving sealing performance. A multi-layer sealing structure design can be adopted to ensure a tight fit between the top of the heat insulation screen and the thermal isostatic pressing equipment, with auxiliary seals used for supplementary sealing to further improve sealing performance.

[0044] In this embodiment, a robust and high-temperature resistant support structure can also be designed to ensure the stability and positioning accuracy of the heat insulation screen under high temperature and high pressure environment, and a reliable fixing method can be adopted to ensure the tight fit and fixation between the heat insulation screen and the hot isostatic pressing equipment.

[0045] In this embodiment, before acquiring micro-deformation data from non-contact micro-deformation sensors monitoring at least two layers of the overall top surface, the initial heating rate and temperature gradient of the heating element can be set according to the material and structural design of the heat insulation screen. Specifically, before starting the hot isostatic pressing equipment, an initial state check can be performed on the at least two layers of the overall top surface of the heat insulation screen, including the measurement and recording of parameters such as micro-deformation and sealing performance. Furthermore, a suitable initial heating rate and temperature gradient can be set according to the material and structural design of the heat insulation screen to reduce micro-deformation that may occur during the initial heating stage.

[0046] In the monitoring and protection scheme of the heat insulation screen in this application embodiment, an alarm signal is generated when the temperature sensor data exceeds a preset second threshold and / or the pressure sensor data exceeds a preset third threshold, so as to alarm the abnormal working state of the heat insulation screen.

[0047] Specifically, multiple safety measures, such as temperature sensors and pressure sensors, can be used to monitor the hot isostatic pressing equipment. Real-time monitoring of environmental parameters inside and outside the heat shield, such as temperature and pressure changes, can be conducted. Once an abnormality is detected, an alarm will be triggered immediately and protective measures will be activated, such as reducing the heating power or stopping heating, to ensure the safe operation of the hot isostatic pressing equipment.

[0048] like Figure 1 As shown in the embodiment of this application, the thermal isostatic pressing equipment includes an ultra-high pressure vessel and an inverted cup-shaped thermal insulation screen disposed in the ultra-high pressure vessel. The thermal insulation screen has at least two integral top layers, and a non-contact micro-deformation sensor is disposed above the at least two integral top layers. A heating element, a temperature sensor, and a pressure sensor are disposed inside the thermal insulation screen. A support structure is disposed below the thermal insulation screen, and the support structure is fixedly connected to the thermal insulation screen by fasteners that can adjust the tightness.

[0049] like Figure 4 As shown, the micro-deformation control device at the top of the heat insulation screen of the hot isostatic pressing equipment includes: The first acquisition module 401 is used to acquire micro-deformation data of at least two layers of the overall top, and the micro-deformation data is obtained by non-contact micro-deformation sensors.

[0050] The second acquisition module 402 is used to acquire temperature sensor data and pressure sensor data when the micro-deformation data exceeds a set first threshold. The temperature sensor data is obtained by measuring the temperature sensor, and the pressure sensor data is obtained by measuring the pressure sensor.

[0051] The determination module 403 is used to determine the working status of the heat insulation screen based on the micro-deformation data, temperature sensor data and pressure sensor data. The working status describes the micro-deformation data of the heat insulation screen and the corresponding temperature and pressure zones.

[0052] The adjustment module 404 is used to adjust the tightness of the fasteners and / or the heating power of the heating element according to the working status, so as to control the micro-deformation data within a preset range.

[0053] During the operation of hot isostatic pressing equipment, micro-deformation is monitored in real time using non-contact micro-deformation sensors installed on the top of at least two layers of the overall thermal insulation barrier. At least two non-contact micro-deformation sensors are installed on top of the at least two overall layers. These sensors can be capacitive or optical deformation sensors, but are not limited to these. The sensors are connected to a data acquisition system to achieve real-time data transmission and processing. Sensor data is collected and analyzed in real time to identify trends and patterns in micro-deformation. The placement of micro-deformation sensors on the top of at least two layers of the overall thermal insulation barrier, using a non-contact measurement method, ensures the accuracy and reliability of real-time monitoring.

[0054] In this embodiment, a monitoring device for key parameters such as temperature and pressure can monitor the safety of the hot isostatic pressing equipment in real time. Combining data from temperature and pressure sensors allows for comprehensive analysis of the heat insulation screen's operating status and environmental conditions. An intelligent control system is established, integrating functions such as micro-deformation monitoring, temperature monitoring, and pressure monitoring, to adjust the heat insulation screen's support structure or heating power based on real-time monitored micro-deformation data. Based on real-time monitored temperature and pressure data, automatic control of the heat insulation screen's micro-deformation is achieved through algorithm analysis and logical judgment. The intelligent control system possesses self-learning and optimization capabilities, continuously improving the control strategy based on historical data and experience. If the micro-deformation exceeds a preset threshold, the system can automatically adjust the fastening force of the support structure or change the heating power distribution to reduce micro-deformation and restore a high airtightness state. During the control process, parameters can be continuously optimized to achieve the best micro-deformation control effect.

[0055] The technical solution of this application embodiment can effectively reduce structural deformation caused by high temperature and high pressure environment by precisely controlling the micro deformation of at least two layers of the overall top of the heat insulation screen, thereby improving the stability and reliability of the entire hot isostatic pressing equipment.

[0056] In this embodiment of the application, the adjustment module is used to generate an adjustment signal according to the working state to adjust the tightness of the fastener and / or the heating power of the heating element.

[0057] Specifically, the micro-deformation control device at the top of the heat insulation screen of the hot isostatic pressing equipment also includes a temperature controller and a tightness controller. The temperature controller is used to generate a temperature control signal for the heating element based on the adjustment signal, so as to control the heating power of the heating element. The tightness controller is used to generate a motor drive signal to control the tightness of the fasteners based on the adjustment signal, so as to control the tightness of the fasteners.

[0058] Specifically, the fasteners can be rotated by a motor to adjust their tightness. This motor is controlled by the aforementioned motor drive signal. By adjusting the tightness of the fasteners, the stable shape and high airtightness of the top of the heat insulation screen can be maintained. The amount of tightness adjustment can be determined by the number of rotations of the motor.

[0059] In this embodiment, the micro-deformation control device on the top of the thermal insulation screen of the hot isostatic pressing equipment further includes an alarm, used to generate an alarm signal when the temperature sensor data exceeds a preset second threshold and / or the pressure sensor data exceeds a preset third threshold, to alert to the abnormal operating state of the thermal insulation screen. Configuring the alarm allows for immediate triggering of an alarm and the implementation of corresponding emergency measures upon detecting an abnormality.

[0060] In the embodiments of this application, at least two integral top layers can be composed of at least two segments with independent thermal insulation materials and sealing structures, thereby enhancing the strength of the top and reducing deformation.

[0061] In this embodiment of the application, at least two sealing structures can be provided between the ultra-high pressure vessel and the heat insulation screen.

[0062] At least two sealing structures can include a static seal and a dynamic seal. For example, a sealing structure can include a lip seal, a graphite packing assembly, and an O-ring. At least two sealing structures can achieve better sealing performance.

[0063] In this embodiment, a reflective layer is provided on the inner wall of the heat insulation screen. The reflectivity of the reflective layer is higher than a preset reflectivity threshold, so as to reflect the heat radiation back to the heating area, thereby improving the heat insulation performance of the heat insulation screen.

[0064] In this embodiment, at least two non-contact micro-deformation sensors are provided above the top of at least two layers; multiple temperature sensors for detecting the temperature at different locations inside the heat insulation screen and multiple pressure sensors for detecting the pressure at different locations inside the heat insulation screen are provided inside the heat insulation screen, so that the deformation at different locations on the top can be measured, as well as the temperature and pressure at different locations inside the heat insulation screen, thereby obtaining more accurate measurement data, and determining the working state of the heat insulation screen and micro-deformation control measures based on the mean or distribution pattern of the measurement data.

[0065] Heat shield devices can employ a multi-layered structural design, with each layer serving a specific function of insulation and protection. For example, the external structure may utilize robust and high-temperature-resistant materials to withstand the pressure and temperature variations of the external environment; the internal structure uses highly efficient insulation materials to reduce heat transfer to other parts of the hot isostatic pressing (HIP) equipment. The main material of the heat shield is typically a material with stable high-temperature performance and low thermal conductivity. These materials possess excellent insulation properties and mechanical strength, enabling stable operation for extended periods under high temperature and high pressure conditions. In addition to good insulation performance, heat shield devices also require excellent sealing performance to prevent heat leakage through gaps. Furthermore, under prolonged high temperature and high pressure conditions, the sealing performance of the heat shield device should remain consistently stable and unaffected by environmental factors. A highly airtight design reduces the possibility of heat leakage and the ingress of external impurities, further enhancing the operational stability and product quality of the HIP equipment.

[0066] In this embodiment, micro-deformation control reduces heat loss due to structural deformation, improves energy efficiency, and lowers production costs. By designing heating power distribution and temperature control strategies, the hot isostatic pressing (HIP) equipment can achieve process requirements while being more energy-efficient. High-airtightness micro-deformation control ensures the HIP equipment maintains a constant temperature and pressure environment during operation, thereby improving product processing accuracy and consistency. Stable process conditions help reduce product defects and improve product quality and yield. Reducing micro-deformation and wear of the heat shield lowers the maintenance frequency and replacement costs of the HIP equipment, extending its service life. High-airtightness design reduces external factors from corroding internal components, improving overall durability. Implementing micro-deformation control reduces production interruptions caused by HIP equipment malfunctions or shutdowns, improving production efficiency. The installation of safety monitoring alarms ensures timely response in abnormal situations, reducing the risk of production accidents and improving production safety.

[0067] In the technical solution of this application embodiment, the heat insulation screen can undergo rigorous reliability verification and testing before formal use. By simulating a high-temperature and high-pressure environment, the sealing performance, micro-deformation control effect, and material durability of the heat insulation screen are comprehensively evaluated, ensuring its reliability and stability in high airtightness and micro-deformation control under extreme conditions.

[0068] The micro-deformation control method and apparatus for the top of the heat insulation screen of the hot isostatic pressing equipment according to the embodiments of this application, by setting a non-contact micro-deformation sensor on the top of the heat insulation screen of the hot isostatic pressing equipment, the working state of the heat insulation screen is determined when the micro-deformation data of the non-contact micro-deformation sensor exceeds a set first threshold, and the tightness of the fasteners and / or the heating power of the heating element are adjusted according to the working state, thereby accurately controlling the micro-deformation of the top of the heat insulation screen, effectively reducing the structural deformation caused by the high temperature and high pressure environment, and improving the stability and reliability of the entire hot isostatic pressing equipment.

[0069] This application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the above-described method for controlling the micro-deformation at the top of the thermal isostatic pressing equipment heat insulation screen.

[0070] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the above-described method for controlling the micro-deformation at the top of the thermal insulation screen of a hot isostatic pressing equipment.

[0071] The above 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 method for controlling micro-deformation of the top of a heat shield of a hot isostatic pressing equipment, characterized in that: The hot isostatic pressing equipment comprises an ultra-high pressure vessel and an inverted cup-shaped heat shield arranged in the ultra-high pressure vessel, the heat shield has at least two layers of integral top, a non-contact micro-deformation sensor is arranged above the at least two layers of integral top, a heating element, a temperature sensor and a pressure sensor are arranged inside the heat shield, a support structure is arranged below the heat shield, and the support structure is fixedly connected to the heat shield through a fastener capable of adjusting tightness, and the micro-deformation control method of the heat shield top of the hot isostatic pressing equipment comprises: Acquiring micro-deformation data of the top of the at least two layers as a whole, wherein the micro-deformation data is monitored by the non-contact micro-deformation sensor; When the micro-deformation data exceeds a set first threshold, acquiring temperature sensor data and pressure sensor data, wherein the temperature sensor data is measured by the temperature sensor and the pressure sensor data is measured by the pressure sensor; determining a working state of the heat shield according to the micro-deformation data, the temperature sensor data and the pressure sensor data, the working state describing the micro-deformation data of the heat shield and corresponding temperature and pressure zones; The tightness of the fastener and / or the heating power of the heating element are adjusted according to the working state to control the micro-deformation data within a preset range.

2. The micro-deformation control method for the top of the heat shield of hot isostatic pressing equipment according to claim 1 is characterized in that: Before obtaining the micro-deformation data of the at least two layers of the overall top, the method further comprises: The initial heating rate and temperature gradient of the heating element are set according to the material and structural design of the heat insulation screen.

3. The method for controlling micro-deformation of the top of the heat shield of hot isostatic pressing equipment according to claim 1, characterized in that: Also includes: When the temperature sensor data exceeds a preset second threshold value, and / or the pressure sensor data exceeds a preset third threshold value, an alarm signal is generated to warn of an abnormal working state of the heat insulation screen.

4. A micro-deformation control device for the top of a heat shield of a hot isostatic pressing equipment, characterized in that: The hot isostatic pressing equipment comprises an ultra-high pressure vessel and an inverted cup-shaped heat shield arranged in the ultra-high pressure vessel, wherein the heat shield has at least two layers of integral top, a non-contact micro-deformation sensor is arranged above the at least two layers of integral top, a heating element, a temperature sensor and a pressure sensor are arranged inside the heat shield, a supporting structure is arranged below the heat shield, and the supporting structure is fixedly connected to the heat shield through a fastener capable of adjusting tightness, and the micro-deformation control device of the heat shield top of the hot isostatic pressing equipment comprises: A first acquisition module is used to acquire micro-deformation data of the at least two layers of the overall top, wherein the micro-deformation data is monitored by the non-contact micro-deformation sensor; A second acquisition module, used for acquiring temperature sensor data and pressure sensor data when the micro-deformation data exceeds a set first threshold, the temperature sensor data being measured by the temperature sensor and the pressure sensor data being measured by the pressure sensor; a determination module, configured to determine a working state of the heat insulation shield according to the micro-deformation data, the temperature sensor data and the pressure sensor data, wherein the working state describes the micro-deformation data of the heat insulation shield and corresponding temperature and pressure zones; An adjustment module is used to adjust the tightness of the fastener and / or the heating power of the heating element according to the working state, so as to control the micro-deformation data within a preset range.

5. The micro-deformation control device for the top of the heat shield of hot isostatic pressing equipment according to claim 4, characterized in that: The adjustment module is used to generate an adjustment signal according to the working state to adjust the tightness of the fastener and / or the heating power of the heating element; The micro-deformation control device for the top of the heat shield of the hot isostatic pressing equipment also includes: A temperature controller, used to generate a temperature control signal of the heating element according to the adjustment signal, so as to control the heating power of the heating element; The tightness controller is used to generate a motor driving signal for controlling the tightness of the fastener according to the adjustment signal, so as to control and adjust the tightness of the fastener.

6. The micro-deformation control device for the top of the heat shield of hot isostatic pressing equipment according to claim 5, characterized in that: The at least two-layer integral top is composed of at least two sections using independent heat insulating materials and sealing structures.

7. The micro-deformation control device for the top of the heat shield of hot isostatic pressing equipment according to claim 4, characterized in that: At least two sealing structures are arranged between the ultra-high pressure container and the heat insulation shield.

8. The micro-deformation control device for the top of the heat shield of hot isostatic pressing equipment according to claim 4, characterized in that: A reflective layer is arranged on the inner wall of the heat insulation screen, and the reflectivity of the reflective layer is higher than a preset reflectivity threshold.

9. The micro-deformation control device for the top of the heat shield of hot isostatic pressing equipment according to claim 4, characterized in that: At least two non-contact micro-deformation sensors are arranged above the top of the at least two layers; and / or, a plurality of temperature sensors for detecting the temperature at different positions inside the heat insulation shield and a plurality of pressure sensors for detecting the pressure at different positions inside the heat insulation shield are arranged inside the heat insulation shield.

10. The micro-deformation control device for the top of the heat shield of hot isostatic pressing equipment according to any one of claims 4 to 9, characterized in that: The non-contact micro-deformation sensor includes a capacitive deformation sensor or an optical deformation sensor.

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