Ultrafast high-temperature sintering device

Abstract

The utility model discloses an ultrafast high-temperature sintering device which aims at solving the problems that traditional sintering equipment is low in heating efficiency, poor in integration level, tedious in operation and the like. The device comprises a vertical integrated frame, the frame is divided into a high-temperature sintering layer at the upper part, an electrical equipment layer at the middle part and a power supply control layer at the lower part, the equipment integration degree is improved by virtue of vertical layout, heat is effectively isolated, and stable operation is guaranteed. The high-temperature sintering cavity, the material taking and discharging door, the baffle valve, the two groups of mass flow controllers connected in parallel and the electromagnetic valve are arranged, so that the inert gas atmosphere can be rapidly switched, gas can be accurately mixed, and components such as an infrared thermometer and a direct-current power supply controller are further arranged. In addition, a cooling fan is arranged to assist the infrared thermometer to control the temperature, a control panel is convenient to operate, an observation window is convenient to monitor, a thermal insulation interlayer plays a role in thermal insulation, and a moving wheel set facilitates movement of the equipment. All the components work cooperatively, so that the device can stably run for 40-50 minutes at the high temperature of 3000 DEG C, and has the characteristics of high efficiency, practicability and durability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high temperature sintering device technical field, especially, it is related to a kind of superfast high temperature sintering device. BACKGROUND

[0002] Sintering is an important material processing technology, which is committed to transforming powdery materials into dense bodies. In this specific form of powder sintering, metal powder or other types of powder compacts are heated to a specific temperature below the melting point of the main component. During this process, a series of complex physical and chemical actions such as bonding occur between particles, which enables the material to obtain the expected strength and unique characteristics, thereby forming the final material or product. This process plays an indispensable role in many key fields, such as ceramic manufacturing, ultra-high temperature material research and development, refractory material production, and powder metallurgy.

[0003] After the powder undergoes the forming process, the dense body obtained through sintering is essentially a polycrystalline material. From a microstructure perspective, it is mainly composed of crystals, glass bodies, and pores. The sintering process plays a crucial role in directly affecting several key elements in the microstructure, such as the size of the grains, the size of the pores, the shape of the grain boundaries, and their distribution. These changes in the microstructure further have a profound impact on the properties of the material, determining its performance in practical applications.

[0004] Traditional sintering equipment usually has high-temperature heating bins and wind wheels at the bottom of the box. The heating principle is mainly based on the synergistic effect of heat energy and natural air flow to build a circulating air duct structure. Specifically, the air in the box is first sucked into the high-temperature heating bin by the air fan, then the air flows back into the working chamber along the air duct, and then enters the heating bin again, and this cycle continues, effectively achieving the heating effect. Another common design is to arrange heating pipes around the heating bin, which, through the heating function of the heating pipes themselves, and in cooperation with the flow state of the surrounding air, gradually increases the temperature of the heating bin to meet the strict temperature requirements of the sintering process.

[0005] The traditional sintering equipment relies on air or other media for indirect heating, resulting in low heating efficiency, slow speed, and low limit temperature, which is difficult to meet the material processing requirements. Moreover, it is a split structure, which has the disadvantages of large floor area, complex operation, and poor stability. At the same time, the heating structure has strict requirements on the oxygen content of the environment. When the temperature is above 2000℃, a flange sealing opening structure is required, and a molecular pump or diffusion pump is needed to maintain high vacuum to prevent the heating body from being damaged and failing, which makes the equipment complex, the operation cumbersome, and the cycle long.

[0006] Although some current devices have positive improvements for the defects of traditional sintering devices, there are still many problems. In terms of integration, although a certain degree of integration is carried out, the device integration is still low. In terms of taking and placing materials, the lateral taking and placing method brings inconvenience to actual operation. The layout of the sintering cavity is unreasonable, which causes other electrical devices to be in a high-temperature environment for a long time, cannot maintain a long-time continuous working state, increases the risk of failure, and greatly reduces the stability of the device. When different materials are sintered and different inert gas protection atmospheres are switched, the corresponding switching operation is extremely complex, which brings many troubles and challenges to the actual production process. Content of the utility model

[0007] Therefore, the utility model aims at providing an ultrafast high-temperature sintering device to solve some or all of the technical problems in the background art.

[0008] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0009] An ultrafast high-temperature sintering device, comprising a vertical integrated frame, a high-temperature sintering cavity, a material taking and placing door, a baffle valve, a mass flow controller, a solenoid valve, an infrared temperature measuring instrument and a direct current power supply controller, the high-temperature sintering cavity uses Joule heating, and a protective shell is arranged outside the vertical integrated frame.

[0010] The vertical integrated frame comprises a high-temperature sintering layer, an electrical device layer and a power supply control layer. The high-temperature sintering layer is arranged at the upper part of the vertical integrated frame, the electrical device layer is arranged at the middle part of the vertical integrated frame, and the power supply control layer is arranged at the lower part of the vertical integrated frame. The vertical integrated frame arranges the high-temperature sintering layer at the upper part, arranges the electrical device layer at the middle part and arranges the power supply control layer at the lower part. Through the compact and reasonable vertical layout, on the one hand, the overall integration of the device is greatly improved. The originally scattered functional parts are regularized in a frame system, the space occupation of the device is effectively reduced, centralized control is facilitated, and the modern production site is intensively used. On the other hand, the high-temperature sintering layer is arranged at the upper part, can be effectively isolated from the electrical device layer and the power supply control layer below, reduces the direct impact of heat on the key control and electrical components, the power supply control layer is arranged at the lower part in a relatively low-temperature and less interference environment, which is beneficial to accurately control the power supply, ensure the stable output of the current, avoid circuit failure, signal distortion and other problems caused by high temperature, and the electrical device layer is arranged in the middle to coordinate the upper and lower parts. The division of labor between the layers is clear, and the device runs stably from the overall architecture dimension.

[0011] The material taking and placing door is arranged at the top of the vertical integrated frame, the high-temperature sintering cavity is arranged in the high-temperature sintering layer, the baffle valve, the mass flow controller, the solenoid valve and the infrared temperature measuring instrument are arranged in the electrical device layer, and the direct current power supply controller is arranged in the power supply control layer.

[0012] The baffle valve is connected with the gas outlet pipeline of the high-temperature sintering cavity, the mass flow controller is connected with the electromagnetic valve pipeline, the mass flow controller is connected with the gas inlet pipeline of the high-temperature sintering cavity, the infrared temperature measuring instrument is vertically arranged in the electrical equipment layer, and the temperature measuring head is located below the high-temperature sintering cavity; the baffle valve is connected with the external vacuum pump, and the electromagnetic valve is connected with the external inert gas conveying device pipeline.

[0013] The direct current power supply controller is electrically connected with the electrode on the high-temperature sintering cavity, and the baffle valve, the mass flow controller and the electromagnetic valve are respectively electrically connected with the direct current power supply controller.

[0014] The mass flow controller plays a key role in precisely controlling the gas flow and ensuring stable output of the flow. On the one hand, it can precisely control the gas flow introduced from the external inert gas conveying device with high precision, precisely meet the stringent requirements of the sintering process of specific materials on the flow of a single inert gas, and provide precise gas supply conditions for creating a suitable sintering atmosphere and ensuring smooth material sintering; on the other hand, when the external inert gas conveying pressure fluctuates or other interference factors cause the gas flow to be unbalanced, it can automatically adjust its valve opening and other parameters under the coordinated operation of the direct current power supply controller, effectively stabilize the gas flow into the high-temperature sintering cavity, stabilize the environment in the high-temperature sintering cavity, and effectively ensure the smooth and orderly sintering process, thereby helping to improve product quality and reliability.

[0015] The baffle valve connected with the vacuum pump has many functions. The baffle valve has good sealing performance and can be adjusted. When it works with the vacuum pump, it can accurately control the speed and amount of gas extracted from the sintering cavity by adjusting its opening, thereby controlling the vacuum degree in the sintering cavity. For example, in the sintering of ultra-high-temperature ceramic materials, the vacuum degree can be stabilized in the range of 10 -3 -10 -5 Pascal, meeting the requirements of the corresponding process and preventing the material from being oxidized or having an adverse chemical reaction at high temperature. At the same time, the baffle valve can act as a barrier. When the vacuum pump does not need to work or is being used for material loading and unloading, closing the baffle valve can prevent external air from flowing into the sintering cavity and protect the vacuum pump from being damaged by high temperature, dust and other factors in the cavity, ensuring the integrity of the internal structure of the vacuum pump and prolonging its service life. In addition, different sintering processes and materials produce different gases during the sintering process, and the exhaust speed is different. The baffle valve can flexibly adjust the opening according to the actual situation, match the exhaust speed of the sintering cavity with the pumping capacity of the vacuum pump, and let the gas flow in a reasonable state, thereby ensuring the sintering effect.

[0016] The electromagnetic valve is closely coordinated with the mass flow controller in the gas flow control layer, accurately controls the gas inflow, and through fine adjustment of the opening degree of the electromagnetic valve, cooperates with the mass flow controller to ensure that the gas flow meets the process requirements. In the safety protection field, during the operation of the device, in the face of the risk of gas backflow caused by pressure fluctuations and abnormal working conditions, relying on the one-way conduction characteristic or special valve structure, effectively blocks the reverse flow of gas, protects the external gas conveying equipment and internal components from impact damage. Once an emergency situation occurs that endangers safety, such as uncontrolled temperature soaring in the sintering chamber, the control system drives the electromagnetic valve to close quickly to cut off the gas supply and timely contain the spread of dangerous situation. In the automation control dimension, the electromagnetic valve is deeply connected with the control system such as the DC power supply controller, and follows the sintering process in sequence. Since the requirements for gas supply time, flow and other parameters are different at each stage, the electromagnetic valve automatically opens and closes the valve according to the electrical signal instructions from the control system, and adjusts the gas supply rhythm in an orderly manner. It avoids the tediousness of manual operation, effectively improves production efficiency and product quality, and promotes the efficient and stable operation of the entire sintering operation on the automation track.

[0017] In a structure that can optimize the foregoing scheme, the mass flow controller and the electromagnetic valve are two groups respectively, the mass flow controller and the electromagnetic valve are connected as a group, the two groups are connected in parallel, and are connected with the high-temperature sintering chamber gas inlet pipe. The gas inlet ends of the two groups of electromagnetic valves are respectively connected with different inert gas inlet devices. The parallel connection of the two groups can realize rapid switching of different inert gas protection atmospheres, or realize mixed input of two kinds of inert gases, and the mass flow controller can realize accurate proportioning of gas mixing. After the two groups of mass flow controllers and electromagnetic valves are connected in parallel and connected to the high-temperature sintering chamber gas inlet pipe, the two groups have the advantages of rapid switching of atmospheres and accurate mixing of gases. On the one hand, it can conveniently realize rapid switching of different inert gas protection atmospheres, get rid of the tediousness of traditional equipment switching operation, effectively improve production efficiency, reduce switching troubles and delays, and meet the diversified needs of different materials for sintering of gas protection atmosphere; on the other hand, in cooperation with the mass flow controller, the input proportion of the two kinds of inert gases can be accurately controlled to achieve accurate gas mixing and create a gas environment suitable for the sintering process of specific materials, thereby improving the quality and performance of sintered products.

[0018] In a structure that can optimize the foregoing scheme, a cooling fan is further included, the cooling fan is arranged on the side of the infrared temperature detector of the electrical equipment layer, and the cooling fan is electrically connected with the DC power supply controller. The infrared temperature detector has a very high temperature during work. In order to reduce the surface temperature rise, improve the use time and equipment stability, the wind blown by the cooling fan carries away the surface heat, and the temperature is controlled within a safe range.

[0019] In a structure that can optimize the foregoing scheme, the air outlet end of the cooling fan is opposite the lower part of the infrared temperature measuring instrument. The lower part of the infrared temperature measuring instrument is a non-heat-resistant component. The air outlet direction of the cooling fan is opposite the lower part, which is conducive to improving the overall cooling effect.

[0020] In a structure that can optimize the foregoing scheme, a control panel is further included. The control panel includes a panel body, a telescopic arm connected with the vertical integrated frame, and the panel body connected with the telescopic arm. The panel body is electrically connected with the DC power supply controller. The panel body of the control panel is electrically connected with the DC power supply controller. The operator can set and adjust various parameters such as power supply control and gas flow control of the equipment through the operation buttons and display screen on the panel body, realize convenient control of the entire sintering process, do not need to operate dispersedly at various parts of the equipment, effectively improve the operation efficiency; at the same time, the control panel can be flexibly adjusted in position according to the actual needs of the operator with the help of the telescopic arm connected with the vertical integrated frame, which can not only be pulled close to be more clearly observed and accurately operated, but also be pushed away to avoid interfering with other operation links, greatly enhancing the flexibility and practicality of the control panel.

[0021] In a structure that can optimize the foregoing scheme, an observation window is arranged on the loading and unloading door. The operator can directly observe the state change of the material in the cavity during the sintering process, such as color and shape, through the observation window from above, timely understand the sintering progress, judge whether there is an abnormal situation (such as local overheating of the material, uneven sintering, etc.), so as to take corresponding measures for adjustment when necessary, and ensure the smooth progress of the sintering process and product quality.

[0022] In a structure that can optimize the foregoing scheme, a temperature insulation interlayer is arranged between the electrical equipment layer and the power supply control layer of the vertical integrated frame. By arranging the temperature insulation interlayer between the high-temperature sintering layer and the power supply control layer of the vertical integrated frame, the heat conducted from the high-temperature sintering layer can be efficiently blocked, the thermal interference on the power supply control layer is greatly reduced, and the environment temperature of the equipment in the power supply control layer is lowered, so that it can work in a relatively suitable temperature range that meets the operation requirements. In this way, not only can the fault hidden danger caused by high temperature be reduced, the overall stability and reliability of the equipment can be enhanced, but also the service life of the electrical equipment in the power supply control layer can be prolonged, which lays a solid foundation for the continuous and stable operation of the entire ultrafast high-temperature sintering device, ensures the efficient cooperation of each link of the equipment, and realizes stable operation.

[0023] In a structure that can optimize the foregoing scheme, a mobile wheel set is further included and arranged at the bottom of the vertical integrated frame. The mobile wheel set arranged at the bottom of the vertical integrated frame enables the device to be easily moved in a workshop, a laboratory or the like, and facilitates moving the device to a suitable position for operation according to actual production requirements, such as transferring the device between different work areas, or moving the device to a location convenient for operation when the device needs to be maintained or repaired, thereby improving the convenience of using the device.

[0024] In a structure that can optimize the foregoing scheme, the direct current power supply controller includes a 20kW direct current power supply and an electrical control system, and the 20kW direct current power supply is electrically connected with the electrical control system. The 20kW direct current power supply is connected with an external power source. The 20kW direct current power supply serves as a core power source of the device, and can supply sufficient electric energy to each electrical component of the high-temperature sintering cavity, such as an electrode, a baffle valve, a mass flow controller, a solenoid valve, a cooling fan, and a control panel, to ensure their normal operation and meet the stringent requirements of the sintering process on power. At the same time, the electrical control system connected therewith is electrically connected with each electrical component, and can accurately control the operation state of each component of the device by virtue of the ability to receive and process relevant electrical signal instructions, and can flexibly adjust parameters such as gas flow and temperature according to different stages of the sintering process, so as to achieve automatic control of the entire sintering process, improve production efficiency in efficient operation, and guarantee and optimize product quality.

[0025] In the overall architecture of the ultrafast high-temperature sintering device described in the scheme, the combination of the heat insulation interlayer, the cooling fan, the baffle valve and the vacuum pump and the integrated framework layout greatly prolongs the high-temperature operation time of the device, enabling the high-temperature sintering cavity to operate stably at 3000 DEG C for 40-50 minutes. When the sintering cavity rises to 3000 DEG C, the heat insulation interlayer blocks the heat transfer to the electrical equipment layer and the power control layer, protecting the key electrical and control systems of the device in a suitable temperature environment, avoiding circuit failure, signal distortion and other hidden dangers caused by overheating, ensuring stable operation of each part, and preventing the core components from malfunctioning due to heat, thereby interrupting the high-temperature operation; The cooling fan outlet precisely locks the vulnerable part below the temperature measuring instrument, continuously disperses heat, and maintains a safe working temperature in high temperature, ensuring accurate and reliable temperature measurement. Based on accurate temperature feedback, the device can accurately control parameters to maintain a smooth and orderly high-temperature sintering process, preventing temperature measurement failures from disrupting long-term operation rhythm; The baffle valve and the vacuum pump finely control the air extraction rhythm under the condition of 3000 DEG C, cooperate with the vacuum pump to maintain the vacuum degree of the sintering cavity, meet the process requirements such as oxidation prevention, block air backflow, protect the vacuum pump from high temperature and dust damage, create a constant gas environment, ensure stable and long-term high-temperature sintering, and resist gas interference; The integrated framework layout places the high-temperature sintering layer at the upper part to isolate heat interference, promotes the division of labor and cooperation among the layers, and solves the problems of heat conduction and component interference, so that the device can operate stably in high temperature and realize long-term and high-quality operation.

[0026] Compared with the prior art, the ultrafast high-temperature sintering device has the following advantages:

[0027] 1. The vertical integrated framework of the utility model skillfully arranges the high-temperature sintering layer at the upper part, the electrical equipment layer in the middle part, and the power control layer at the lower part. This compact vertical design greatly improves the integration of the device, reduces the occupied space, facilitates centralized management, and meets the modern site intensification needs. At the same time, it effectively isolates heat, reduces the impact on key control and electrical components, ensures stable power supply, avoids circuit failure and signal distortion, and provides a solid foundation for stable operation of the device.

[0028] 2. The mass flow controller precisely controls the gas flow to meet the stringent requirements of material sintering for single inert gas and automatically adjusts in the presence of interference to ensure stable sintering environment. The baffle valve and the vacuum pump work together to precisely control the vacuum degree of the sintering cavity, prevent material oxidation and other adverse conditions, and have the functions of isolation and protection of the vacuum pump. The electromagnetic valve cooperates with the mass flow controller to finely control the flow and prevent backflow, automatically cut off the supply in case of danger, and automatically operate in conjunction with the control system to improve production efficiency and product quality.

[0029] 3. The parallel structure of two groups of mass flow controllers and solenoid valves brings great convenience to gas atmosphere regulation. It can quickly switch different inert gas protective atmosphere, get rid of the traditional switching troubles, improve production efficiency, accurately mix two kinds of inert gases according to process requirements, create an ideal gas environment suitable for specific materials, and effectively promote product quality and performance improvement.

[0030] 4. Thanks to the synergistic effect of temperature insulation interlayer, cooling fan, baffle valve and vacuum pump, plus the reasonable layout of integrated frame, the high-temperature sintering cavity of the device can stably operate for 40-50 minutes at 3000 DEG C high temperature, successfully resist various disturbances, realize long-term and high-quality operation of the equipment, and greatly enhance the practicality and durability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this application. The embodiments illustrated in the drawings serve to explain the present application, and do not constitute an improper limitation thereto. In the drawings:

[0032] Figure 1 The structure schematic diagram of the super-fast high-temperature sintering device is shown in the present application;

[0033] Figure 2 The internal planar perspective view of the super-fast high-temperature sintering device is shown in the present application;

[0034] Figure 3 The electrical equipment layer section structure diagram is shown in the present application;

[0035] Figure 4 The perspective structure schematic diagram of the super-fast high-temperature sintering device is shown in the present application.

[0036] Explanation of reference signs:

[0037] 1. Vertical integrated frame, 2. High-temperature sintering cavity, 3. Material taking and placing door, 4. Baffle valve, 5. Mass flow controller, 6. Solenoid valve, 7. Infrared temperature measuring instrument, 8. DC power supply controller, 9. Control panel, 10. Moving wheel set, 11. Observation window, 12. Temperature insulation interlayer, 13. Cooling fan, 91. Panel body, 92. Telescopic arm. DETAILED DESCRIPTION

[0038] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0039] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0040] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0041] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0042] 1. Equipment structure

[0043] The ultrafast high-temperature sintering device described in this embodiment, the core component is a vertical integrated frame 1, which is divided into three layers from top to bottom. The upper part is a high-temperature sintering layer, which is internally provided with a high-temperature sintering cavity 2. The cavity uses Joule heating method to quickly raise the temperature in the cavity by means of electric energy to meet the needs of material sintering, and the outer protective shell ensures the safety and heat retention during use. The electrical equipment layer in the middle part is arranged with key components, the baffle valve 4 is connected with the gas outlet of the high-temperature sintering cavity 2 through the pipeline, and can accurately adjust the exhaust volume and rate as needed; the mass flow controller 5 and the electromagnetic valve 6 are each provided with two groups and are connected in parallel after being connected to the air inlet pipeline of the high-temperature sintering cavity 2, the air inlet ends of the two groups of electromagnetic valves are respectively connected with different inert gas inlet devices, so that the inert gas atmosphere can be switched or the gas can be accurately mixed according to the process requirements, so as to ensure stable air inlet and accurate adaptation to the sintering process; the infrared thermometer 7 is vertically arranged, the temperature measuring head faces the lower part of the high-temperature sintering cavity 2, and is used for real-time monitoring of the temperature in the cavity. The lower power control layer is provided with a direct current power controller 8, which includes a 20kW direct current power supply and an electrical control system, is connected with an external power supply and supplies power to the electrical components of the whole machine, and ensures the operation of the equipment.

[0044] The material taking and placing door 3 is located at the top of the vertical integrated frame 1, facilitating the material to enter and exit, and an observation window 11 is arranged thereon, which is beneficial for the operator to observe the sintering condition in the cavity. A temperature insulation interlayer 12 is arranged between the electrical equipment layer and the power supply control layer to weaken the downward conduction of heat and protect the equipment in the lower layer. The frame is provided with a set of movable wheels 10 at the bottom, which facilitates the movement and adjustment of the position of the equipment. The cooling fan 13 is arranged at the side of the infrared temperature measuring instrument 7, and the air outlet end is aligned with the lower part of the temperature measuring instrument to assist in heat dissipation and maintain a stable working temperature. The control panel 9 is connected to the frame through the telescopic arm 92, and the operator can conveniently adjust and control various parameters of the equipment by the panel body 91.

[0045] 2. Device operation process

[0046] Preparation stage: The operator sets the parameters through the control panel 9 according to the characteristics of the material to be sintered and the process requirements, including sintering time, sintering temperature, inert gas type and flow rate, etc. After starting the equipment, the external inert gas is input into the high-temperature sintering cavity 2 in a set amount and ratio under the cooperation of the electromagnetic valve 6 and the mass flow controller 5, quickly creating a suitable inert gas environment; at the same time, the baffle valve 4 cooperates with the external vacuum pump to accurately adjust the vacuum degree in the cavity to meet the process standard, making good preparation before sintering.

[0047] Sintering stage: The DC power supply controller 8 supplies power to the electrode of the high-temperature sintering cavity 2, and the Joule heating takes effect to heat the cavity. The infrared temperature measuring instrument 7 continuously monitors the temperature and feeds back the data, and the control system adjusts the power output according to the feedback as needed to stabilize the temperature in the cavity. During the process, if there are disturbances such as gas pressure fluctuations, the mass flow controller 5 automatically adjusts the valve to stabilize the gas flow; once abnormalities such as temperature out of control, pressure exceeding the limit, etc. occur, the electromagnetic valve 6 quickly closes according to the control system instructions to cut off the gas supply and ensure the safety of the equipment.

[0048] Monitoring and adjustment stage: The operator observes the sintering state of the material through the observation window 11 on the material taking and placing door 3, and adjusts the heating power, gas flow and other parameters in time through the control panel 9 to correct the sintering process when abnormalities such as local overheating, uneven sintering, etc. are found. The cooling fan 13 continuously runs to control the temperature of the infrared temperature measuring instrument 7, and the temperature insulation interlayer 12 blocks the downward transmission of heat to ensure the normal operation of the equipment in the power supply control layer.

[0049] End stage: After the preset sintering time is completed and the material reaches the expected performance, the equipment stops heating and power supply, and waits for the high-temperature sintering cavity 2 to naturally cool down to a safe temperature, then the material taking and placing door 3 is opened to take out the finished product, and the sintering operation is ended. With the reasonable structure of the equipment and the cooperation of the components, the high-temperature sintering cavity of the device can stably operate at a high temperature of 3000℃ for 40-50 minutes, and efficiently output high-quality sintered products.

[0050] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An ultrafast high temperature sintering apparatus, characterized by: It comprises a vertical integrated frame (1), a high-temperature sintering cavity (2), a material loading and unloading door (3), a baffle valve (4), a mass flow controller (5), a solenoid valve (6), an infrared temperature measuring instrument (7), and a DC power supply controller (8). The vertical integrated frame (1) comprises a high-temperature sintering layer, an electrical equipment layer, and a power supply control layer. The material loading and unloading door (3) is arranged on the top of the vertical integrated frame (1), the high-temperature sintering cavity (2) is arranged in the high-temperature sintering layer, the baffle valve (4), the mass flow controller (5), the solenoid valve (6), and the infrared temperature measuring instrument (7) are arranged in the electrical equipment layer, and the DC power supply controller (8) is arranged in the power supply control layer. The baffle valve (4) is connected with the gas outlet pipeline of the high-temperature sintering cavity (2), the gas inlet end of the mass flow controller (5) is connected with the solenoid valve (6), the gas outlet end of the mass flow controller (5) is connected with the gas inlet pipeline of the high-temperature sintering cavity (2), and the infrared temperature measuring instrument (7) is vertically arranged in the electrical equipment layer, and the temperature measuring head is located below the high-temperature sintering cavity (2). The DC power supply controller (8) is electrically connected with the electrode of the high-temperature sintering cavity (2), and the baffle valve (4), the mass flow controller (5), and the solenoid valve (6) are respectively electrically connected with the DC power supply controller (8).

2. The ultrafast high-temperature sintering device of claim 1, wherein: The mass flow controller (5) and the solenoid valve (6) are respectively two groups, the mass flow controller (5) and the solenoid valve (6) are connected as a group, two groups are connected in parallel, and are connected with the gas inlet pipeline of the high-temperature sintering cavity (2).

3. The ultrafast high-temperature sintering device of claim 1, wherein: It also comprises a cooling fan (13), which is arranged on the side of the infrared temperature measuring instrument (7) in the electrical equipment layer, and is electrically connected with the DC power supply controller (8).

4. The ultrafast high-temperature sintering device of claim 3, wherein: The air outlet end of the cooling fan (13) is opposite to the lower part of the infrared temperature measuring instrument (7).

5. The ultrafast high-temperature sintering device of claim 4, wherein: It also comprises a control panel (9), which comprises a panel body (91) and a telescopic arm (92), the telescopic arm (92) is connected with the vertical integrated frame (1), the panel body (91) is connected with the telescopic arm (92), and the panel body (91) is electrically connected with the DC power supply controller (8).

6. The ultrafast high-temperature sintering device of claim 1, wherein: An observation window (11) is arranged on the material loading and unloading door (3).

7. The ultrafast high-temperature sintering device of claim 1, wherein: A temperature insulation interlayer (12) is arranged between the electrical equipment layer and the power supply control layer of the vertical integrated frame (1).

8. The ultrafast high-temperature sintering device of claim 1, wherein: It also comprises a mobile wheel set (10), which is arranged at the bottom of the vertical integrated frame (1).

9. The ultrafast high-temperature sintering device of claim 1, wherein: The DC power supply controller (8) comprises a 20kW DC power supply and an electrical control system, and the 20kW DC power supply is electrically connected with the electrical control system.

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