CN114921633A - High-flux gradient heat treatment device and process for metal bar - Google Patents
High-flux gradient heat treatment device and process for metal bar Download PDFInfo
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- CN114921633A CN114921633A CN202210559597.8A CN202210559597A CN114921633A CN 114921633 A CN114921633 A CN 114921633A CN 202210559597 A CN202210559597 A CN 202210559597A CN 114921633 A CN114921633 A CN 114921633A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 201
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 85
- 239000002184 metal Substances 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 18
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 230000004907 flux Effects 0.000 claims description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 239000011733 molybdenum Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 8
- 238000012827 research and development Methods 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The application discloses a high-flux gradient heat treatment device for metal bars, which comprises a vacuum furnace, a heating device and a heat shielding plate; the vacuum furnace comprises a furnace body and a furnace cover, wherein a fixing device for fixing the metal bar is arranged on the furnace cover; the furnace body is sequentially divided into a plurality of heating layers from top to bottom through a plurality of heat shielding plates, and a heating device is arranged in each heating layer; a plurality of heating channels for the metal bar to pass through are arranged in the vacuum furnace, and the heating channels sequentially penetrate through each heating layer in the vacuum furnace from the fixing device to the bottom. According to the metal bar high-flux gradient heat treatment device and the metal bar high-flux gradient heat treatment process, the technical problems of time consumption, energy consumption and low efficiency of the existing heat treatment method are solved by using the metal bar high-flux gradient heat treatment device, and the heat treatment of metal materials with different components at different temperatures in one-time heat treatment is realized.
Description
Technical Field
The application relates to the field of heat treatment of metal materials, in particular to a high-flux gradient heat treatment device and a high-flux gradient heat treatment process for metal bars.
Background
The heat treatment process is a heat processing process for improving the microstructure and the performance of the material by heating, preserving heat and cooling the material. The main technological parameters in the heat treatment process are heating temperature, holding time, cooling rate and the like. The traditional heat treatment process research method is a trial-and-error method, and the microstructure and performance rules of the heat-treated material are summarized through a large amount of experiment accumulated data, so that heat treatment process parameters are optimized, and a large amount of time and energy are consumed. At present, the material science develops rapidly, and the research and development of new materials need an efficient and rapid heat treatment process research method as a support. At present, when metal materials with different components are subjected to heat treatment at different temperatures, different metal materials are subjected to heat treatment respectively, and the conventional heat treatment equipment and method need to carry out heat treatment on the metal materials for many times, so that the efficiency is low.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
Disclosure of Invention
The application mainly aims to provide a high-flux gradient heat treatment device and a high-flux gradient heat treatment process for metal bars, and aims to solve the technical problem that the existing heat treatment method is low in efficiency.
In order to achieve the above purpose, the present application provides a high-flux gradient heat treatment device for metal bar, comprising a vacuum furnace capable of being vacuumized, a heating device capable of controlling temperature, and a heat shielding plate capable of insulating heat;
the vacuum furnace comprises a furnace body and a furnace cover, wherein the furnace cover is connected to the upper end of the furnace body, and a plurality of fixing devices for fixing the metal bars are arranged on the furnace cover;
a plurality of heat shielding plates are arranged in the furnace body at intervals so as to divide the interior of the furnace body into a plurality of heating layers, and each heating layer is internally provided with the heating device;
and a plurality of heating channels for the metal bar to pass through are arranged in the vacuum furnace, and the heating channels sequentially penetrate through each heating layer in the vacuum furnace from the fixing device downwards.
Optionally, the heating layer further comprises a first temperature detection device, and the first temperature detection device is arranged in each heating layer.
Optionally, the furnace further comprises a second temperature detection device and a second temperature detection channel for the second temperature detection device to pass through, the second temperature detection device is arranged in the second temperature detection channel, and the second temperature detection channel sequentially penetrates through the furnace cover and each heating layer in the vacuum furnace from top to bottom.
Optionally, the first temperature detection device and the second temperature detection device are respectively located at two ends in the heating layer.
Optionally, the first temperature detection device and the second temperature detection device are both thermocouples.
Optionally, a circulating cooling system for cooling the vacuum furnace is arranged on the vacuum furnace.
Optionally, the heating device is a tungsten heating element, and the tungsten heating element is arranged around the inner wall of the vacuum furnace.
Optionally, the furnace cover driving device is used for driving the furnace cover switch, the furnace cover is hinged to the furnace body, and the driving end of the furnace cover driving device is in transmission connection with the furnace cover.
Optionally, the heat shield plate comprises two molybdenum plates and a zirconia ceramic plate disposed between the two molybdenum plates.
In addition, in order to achieve the above object, the present application further provides a high-throughput gradient heat treatment process for a metal bar, which uses a high-throughput gradient heat treatment apparatus for a metal bar, the process comprising:
preparing a metal raw material into a metal bar stock matched with the heating channel;
installing the metal bar stock in the heating channel, then vacuumizing the vacuum furnace, and filling inert gas into the vacuumized vacuum furnace;
after inert gas is filled into the vacuum furnace, setting the temperature in each heating layer in a gradient manner, starting the heating device in each heating layer, and carrying out heat treatment on the metal bar;
correcting the temperature in each heating layer in the process of carrying out heat treatment on the metal bar stock;
and after the heat treatment of the metal bar is finished, closing the heating device, and taking out the metal bar when the temperature in the vacuum furnace reaches the room temperature.
The beneficial effect that this application can realize:
when using this application, fix the one end of metal bar on fixing device, every zone of heating in the vacuum furnace is down passed in proper order from last to the other end of metal bar, thereby divide into the multistage with the metal bar, every section is located a zone of heating respectively, through setting up the intraformational heating device's of heating temperature, thereby make every section of metal bar all can obtain different heating temperature, can form gradient temperature, satisfy a metal bar and carry out thermal treatment under the different temperatures. Because a plurality of heating channels for the metal bar to pass through are arranged in the vacuum furnace, the metal materials with different components can be thermally treated at different temperatures in one-time thermal treatment, thereby improving the process research efficiency. The device realizes gradient heat treatment of the material test bar, realizes gradient change of temperature in a one-dimensional direction and accurate temperature measurement and control of the temperature, forms stable and controllable temperature gradient, can simultaneously perform gradient heat treatment on a plurality of metal bars, and provides key technical support for accelerating research and development and application of new materials. Meanwhile, the energy, time and material consumption can be reduced, and the process research cost is reduced.
According to the high-flux gradient heat treatment device and the process for the metal bar, provided by the embodiment of the application, the technical problems of time consumption, energy consumption and low efficiency of the conventional heat treatment method are solved by using the high-flux gradient heat treatment device for the metal bar, and the heat treatment of metal materials with different components at different temperatures in one heat treatment is realized.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a high-throughput gradient heat treatment apparatus for metal bars according to the present application;
FIG. 2 is a schematic view of a heat shield plate;
reference numerals are as follows:
1-a furnace body, 2-a furnace cover, 3-a heat shield plate, 4-a fixing device, 5-a first temperature detection device, 6-a second temperature detection device, 7-a molybdenum plate, 8-a zirconia ceramic plate, 9-a furnace cover driving device and 10-a heating device.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that all directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, a first embodiment of a high flux gradient heat treatment apparatus and process for a metal bar according to the present application provides a high flux gradient heat treatment apparatus for a metal bar, which includes a vacuum furnace capable of being evacuated, a heating apparatus 10 capable of controlling temperature, and a heat shielding plate 3 capable of insulating heat;
the vacuum furnace comprises a furnace body 1 and a furnace cover 2, wherein the furnace cover 2 is connected to the upper end of the furnace body 1, and a plurality of fixing devices 4 for fixing metal bars are arranged on the furnace cover 2;
a plurality of heat shielding plates 3 are arranged in the furnace body 1 at intervals so as to divide the interior of the furnace body 1 into a plurality of heating layers, and each heating layer is internally provided with the heating device 10;
a plurality of heating channels for the metal bar to pass through are arranged in the vacuum furnace, and the heating channels sequentially penetrate through each heating layer in the vacuum furnace from the fixing device 4 downwards.
The vacuum furnace is divided into a plurality of heating layers by the heat shielding plate 3, the heating device 10 is arranged in each heating layer, thereby realizing that the heating in each heating layer can be independently heated, the temperature in each heating layer can be independently adjusted to the required temperature according to the requirement, and because a plurality of heating channels are arranged in the vacuum furnace, the heating channels sequentially pass through each heating layer in the vacuum furnace from the fixing device 4 downwards, each metal bar corresponds to one heating channel, particularly, through holes can be arranged on the heat shielding plate 3, the through holes corresponding to each other of the heat shielding plates 3 in each layer are communicated to form the heating channel, the fixing device 4 can fix the metal bar by a thread structure, a buckle, a paste and the like, when in use, one end of the metal bar is fixed on the fixing device 4, and the other end of the metal bar sequentially passes through each heating layer in the vacuum furnace from the top downwards, thereby divide into the multistage with metal bar, every section is located a zone of heating respectively, through setting up the temperature of intraformational heating device 10 of heating, thereby make each section of metal bar all can obtain different heating temperature, can form gradient temperature, satisfy a metal bar and carry out thermal treatment under the different temperatures, simultaneously owing to there are heat shield plate 3 to insulate against heat, form the zone of heating between two heat shield plate 3 in other words, the intraformational temperature of a zone of heating just can not influence the intraformational temperature of other zones of heating, guarantee that the intraformational temperature of every layer of heating reaches the temperature of settlement, guarantee that every layer of heating can accurate accuse temperature, prevent that each zone of heating from influencing each other, prevent to dash the temperature. Because a plurality of heating channels for the metal bar materials to pass through are arranged in the vacuum furnace, the metal materials with different components can be subjected to heat treatment at different temperatures in one experiment, and the process research efficiency is improved. The device realizes gradient heat treatment of the material test bar, realizes gradient change of temperature in a one-dimensional direction and accurate temperature measurement and control, forms stable and controllable temperature gradient, can simultaneously perform gradient heat treatment on a plurality of metal bars, and provides key technical support for accelerating research and development and application of new materials. Meanwhile, the energy, time and material consumption can be reduced, and the process research cost is reduced.
In order to control the temperature in each heating layer more accurately and conveniently control the temperature in each heating layer, the heating device further comprises a first temperature detection device 5, and the first temperature detection device 5 is arranged in each heating layer. According to the temperature detected by the first temperature detection device 5, the heating device 10 is controlled in real time, and the accuracy of the temperature in each heating layer is ensured.
In order to further ensure the accuracy of the temperature in each heating layer and prevent the first temperature detection device 5 from being invalid, the furnace further comprises a second temperature detection device 6 and a second temperature detection channel for the second temperature detection device 6 to pass through, wherein the second temperature detection device 6 is arranged in the second temperature detection channel, and the second temperature detection channel sequentially penetrates through the furnace cover 2 and each heating layer in the vacuum furnace from top to bottom. The specific mode of using the second temperature detection device 6 is that, the second temperature detection device 6 is moved in the second temperature detection channel, so that the second temperature detection device 6 can detect the temperature in each heating layer respectively, the result detected by the second temperature detection device 6 is compared with the temperature detected by the first temperature detection device 5, if the result is the same, the detected temperature in the heating layer is accurate, and if the result is different, the detected temperature in the heating layer is inaccurate, and the processing and the adjustment are needed in time.
In order to ensure the accuracy of the temperature measured in each heating layer, the first temperature detection device 5 and the second temperature detection device 6 are respectively positioned at two ends in the heating layer. As shown in fig. 1, a distance is formed between the first temperature detection device 5 and the second temperature detection device 6. The two temperature detection devices are prevented from measuring the same position, so that the detection result is inaccurate.
The temperature detecting device is a device for detecting temperature, such as a thermometer, a temperature sensor, etc., in this embodiment, in order to adapt to high temperature operation and to adapt to the structural characteristics of the vacuum furnace, the first temperature detecting device 5 and the second temperature detecting device 6 are both thermocouples. The thermocouple is a conventional device for detecting temperature, and is a commonly used temperature measuring element in a temperature measuring instrument.
In order to prevent the vacuum furnace from being burnt out by high temperature, a circulating cooling system for cooling the vacuum furnace is arranged on the vacuum furnace. The circulating cooling system, such as a water cooling circulating system and the like, prevents the vacuum furnace wall from being burnt out at high temperature, and specifically, in the embodiment, the water cooling tube can be arranged on the outer wall of the vacuum furnace, and heat exchange is performed between the water cooling tube and the outer wall of the vacuum furnace, so that the outer wall of the vacuum furnace is cooled, the vacuum furnace wall is protected, and the service life of the vacuum furnace is prolonged.
The heating device 10 may be an electric heating device, an infrared heating device, or the like, and in this embodiment, the heating device 10 is a tungsten heating element disposed around the inner wall of the vacuum furnace. The tungsten heating element is current heating device 10, and this embodiment encircles the tungsten heating element and sets up the inner wall of vacuum furnace guarantees that the temperature is even in every layer of heating layer to guarantee the stability of every layer of heating in-layer temperature.
The furnace cover driving device 9 is used for driving the furnace cover 2 to open and close, the furnace cover 2 is hinged to the furnace body 1, and the driving end of the furnace cover driving device 9 is in transmission connection with the furnace cover 2. The furnace cover driving device 9 can be a hydraulic drive, a gear drive or the like, and the opening or the closing of the furnace cover 2 is driven by the furnace cover driving device 9.
The heat shield plate 3 is used for isolating heat, and may be made of a heat insulating material, or a thicker material, etc., in this embodiment, in order to ensure the effectiveness of heat insulation, the heat shield plate 3 includes two molybdenum plates 7 and a zirconia ceramic plate 8 disposed between the two molybdenum plates 7, as shown in fig. 2, the zirconia ceramic plate 8 is an yttrium-stabilized zirconia ceramic plate 8, and the molybdenum plates 7 and the zirconia ceramic plate 8 are both in the prior art, and have a good heat insulation effect.
A high-throughput gradient heat treatment process for metal bars, which adopts a high-throughput gradient heat treatment device for the metal bars, and comprises the following steps:
preparing a metal raw material into a metal bar stock matched with the heating channel;
installing the metal bar stock in the heating channel, then vacuumizing the vacuum furnace, and filling inert gas into the vacuumized vacuum furnace;
after inert gas is filled into the vacuum furnace, setting the temperature in each heating layer in a gradient manner, starting the heating device 10 in each heating layer, and carrying out heat treatment on the metal bar stock;
correcting the temperature in each heating layer in the process of carrying out heat treatment on the metal bar stock;
and after the heat treatment of the metal bar is finished, closing the heating device 10, and taking out the metal bar when the temperature in the vacuum furnace reaches the room temperature.
In order to facilitate understanding of the process, the present embodiment adopts specific operation steps for detailed description; preparing a metal raw material into a metal bar, machining a threaded hole in the center of one end of the metal round bar, and fixing the metal bar with the fixing device 4 through the threaded hole. Several metal bars of different compositions can be prepared.
Opening the furnace cover 2, respectively fixing a plurality of metal bars on different fixing devices 4, wherein each metal bar corresponds to a heating channel, so that the metal bars sequentially pass through the heating layer, closing the furnace cover 2 and preparing for vacuumizing; and starting a vacuum system of the vacuum furnace for vacuumizing, stopping vacuumizing when the vacuum degree reaches 1 x 10 < -3 > Pa, and filling high-purity 99.99 wt.% argon into the furnace. Setting the heating temperature and the heating time of each segmented heating device 10, wherein the heating temperature at the bottommost position of the heating layers of the furnace body 1 is lowest, and the heating temperature of each heating layer is sequentially increased by 50-100 ℃; the temperature rise time of each heating layer is the same, and the temperature is prevented from being flushed. And starting a heating power supply to start heating. And starting to time the heat treatment time after each heating section reaches the designed heating temperature. Then correcting the temperature in each heating layer; after the heat treatment time is over, the heating power supply of the heating device 10 is closed, and the metal bar is cooled along with the vacuum furnace; and when the temperature in the vacuum furnace reaches the room temperature, filling air into the vacuum furnace, opening the furnace cover 2 and taking out the metal bar.
By using the high-flux gradient heat treatment process for the metal bar, the metal materials with different components are subjected to heat treatment at different temperatures in one heat treatment process, so that the process research efficiency is improved. The gradient heat treatment of the material test bar is realized, the gradient change of the temperature in the one-dimensional direction and the accurate temperature measurement and control of the temperature are realized, the stable and controllable temperature gradient is formed, the gradient heat treatment can be simultaneously carried out on a plurality of metal bar materials, and the key technical support is provided for accelerating the research and development and application of new materials. Meanwhile, the energy, time and material consumption can be reduced, and the process research cost is reduced.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.
Claims (10)
1. A high flux gradient heat treatment device for metal bar materials is characterized by comprising a vacuum furnace capable of being vacuumized, a heating device capable of controlling temperature and a heat shielding plate capable of insulating heat;
the vacuum furnace comprises a furnace body and a furnace cover, the furnace cover is connected to the upper end of the furnace body, and a plurality of fixing devices for fixing the metal bars are arranged on the furnace cover;
a plurality of heat shielding plates are arranged in the furnace body at intervals so as to divide the interior of the furnace body into a plurality of heating layers, and each heating layer is internally provided with the heating device;
and a plurality of heating channels for the metal bar stock to pass through are arranged in the vacuum furnace, and the heating channels sequentially penetrate through each heating layer in the vacuum furnace from the fixing device downwards.
2. The high flux gradient heat treatment apparatus for metal bars as claimed in claim 1, further comprising a first temperature detecting means disposed within each of said heating layers.
3. The high-flux gradient heat treatment device for the metal bar as recited in claim 2, further comprising a second temperature detection device and a second temperature detection channel for the second temperature detection device to pass through, wherein the second temperature detection device is arranged in the second temperature detection channel, and the second temperature detection channel passes through the furnace cover and each heating layer in the vacuum furnace from top to bottom in sequence.
4. The high flux gradient heat treatment apparatus for metal bars as claimed in claim 3, wherein said first temperature detecting means and said second temperature detecting means are respectively located at both ends of said heating layer.
5. The high flux gradient heat treatment apparatus for metal bars as defined in claim 3 or 4, wherein said first temperature detecting means and said second temperature detecting means are thermocouples.
6. The high flux gradient heat treatment apparatus for metal bars as claimed in claim 1, wherein the vacuum furnace is provided with a circulating cooling system for cooling the vacuum furnace.
7. The high-flux gradient heat treatment device for the metal bar as claimed in claim 1, wherein the heating device is a tungsten heating element which is arranged around the inner wall of the vacuum furnace.
8. The high-flux gradient heat treatment device for the metal bar as recited in claim 1, further comprising a furnace cover driving device for driving the furnace cover switch, wherein the furnace cover is hinged with the furnace body, and a driving end of the furnace cover driving device is in transmission connection with the furnace cover.
9. The high flux gradient heat treatment apparatus of claim 1, wherein said heat shield plate comprises two molybdenum plates and a zirconia ceramic plate disposed between said two molybdenum plates.
10. A high flux gradient heat treatment process for a metal bar, which is characterized in that a high flux gradient heat treatment device for a metal bar according to any one of claims 1 to 9 is used, and the process comprises the following steps:
preparing a metal raw material into a metal bar stock matched with the heating channel;
installing the metal bar stock in the heating channel, then vacuumizing the vacuum furnace, and filling inert gas into the vacuumized vacuum furnace;
after inert gas is filled into the vacuum furnace, setting the temperature in each heating layer in a gradient manner, starting the heating device in each heating layer, and carrying out heat treatment on the metal bar;
correcting the temperature in each heating layer in the process of carrying out heat treatment on the metal bar stock;
and after the heat treatment of the metal bar is finished, closing the heating device, and taking out the metal bar when the temperature in the vacuum furnace reaches the room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210559597.8A CN114921633A (en) | 2022-05-20 | 2022-05-20 | High-flux gradient heat treatment device and process for metal bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210559597.8A CN114921633A (en) | 2022-05-20 | 2022-05-20 | High-flux gradient heat treatment device and process for metal bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114921633A true CN114921633A (en) | 2022-08-19 |
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| CN202210559597.8A Pending CN114921633A (en) | 2022-05-20 | 2022-05-20 | High-flux gradient heat treatment device and process for metal bar |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2041986A (en) * | 1979-07-14 | 1980-09-17 | Lippmaa E T Roose V I | Device for gradient heating of wire |
| CN203794971U (en) * | 2014-04-18 | 2014-08-27 | 江苏海事职业技术学院 | Well-type carbonitriding furnace |
| CN111575470A (en) * | 2020-06-28 | 2020-08-25 | 西北工业大学 | Continuous temperature gradient heat treatment device and method for rod-shaped material |
| US20220108900A1 (en) * | 2019-06-27 | 2022-04-07 | Kokusai Electric Corporation | Heat Insulation Structure, Substrate Processing Apparatus, Method of Manufacturing Semiconductor Device and Substrate Processing Method |
-
2022
- 2022-05-20 CN CN202210559597.8A patent/CN114921633A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2041986A (en) * | 1979-07-14 | 1980-09-17 | Lippmaa E T Roose V I | Device for gradient heating of wire |
| CN203794971U (en) * | 2014-04-18 | 2014-08-27 | 江苏海事职业技术学院 | Well-type carbonitriding furnace |
| US20220108900A1 (en) * | 2019-06-27 | 2022-04-07 | Kokusai Electric Corporation | Heat Insulation Structure, Substrate Processing Apparatus, Method of Manufacturing Semiconductor Device and Substrate Processing Method |
| CN111575470A (en) * | 2020-06-28 | 2020-08-25 | 西北工业大学 | Continuous temperature gradient heat treatment device and method for rod-shaped material |
Non-Patent Citations (1)
| Title |
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| {德}托马斯.鲍尔著.: "《热光伏发电原理与设计》", 31 January 2017, 中国三峡出版社 * |
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