CN111360260A - Hot isostatic pressing system and method for workpiece - Google Patents
Hot isostatic pressing system and method for workpiece Download PDFInfo
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- CN111360260A CN111360260A CN202010058980.6A CN202010058980A CN111360260A CN 111360260 A CN111360260 A CN 111360260A CN 202010058980 A CN202010058980 A CN 202010058980A CN 111360260 A CN111360260 A CN 111360260A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
- B22F3/156—Hot isostatic pressing by a pressure medium in liquid or powder form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
- B22F2003/153—Hot isostatic pressing apparatus specific to HIP
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Abstract
The invention provides a hot isostatic pressing system and a hot isostatic pressing method for a workpiece, wherein the system comprises a main container, a liquid metal container, a supercharger, a heating system and a cooling system; the main container is used for finishing hot isostatic pressing of the finished piece, and liquid metal is filled in the main container during work; the liquid metal container is internally stored with liquid metal and is communicated with the main container through a liquid inlet pipeline and a liquid outlet pipeline; a booster and a liquid inlet valve are arranged on the liquid inlet pipeline, and a liquid pump and a liquid outlet valve are arranged on the liquid outlet pipeline; the pressure booster is used for pressing the liquid metal in the liquid metal container into the main container and increasing the pressure in the main container; the heating system and the cooling system are used to heat and cool the main tank, respectively. According to the hot isostatic pressing system and method for the workpiece, provided by the invention, the liquid metal is used as the hot pressing medium, the production efficiency can be obviously improved, the production difficulty of equipment can be favorably reduced, and the liquid metal has visibility, has no suffocation danger compared with a gas medium, and is high in safety.
Description
Technical Field
The invention relates to the technical field of material processing, in particular to a hot isostatic pressing system and a hot isostatic pressing method for a workpiece.
Background
Hot Isostatic Pressing (HIP) is a process in which a gas or liquid is used as a transmission medium for temperature and pressure, and a part is placed in a closed container, and under the action of high temperature and high pressure, the part is applied with equal pressure in all directions. After the hot isostatic pressing treatment, the density, the mechanical property and the like of the finished piece are obviously improved, and the internal pore defect is also obviously reduced. Hot isostatic pressing technology has found wide application in the fields of material sintering, powder metallurgy, material forming, casting treatment and diffusion bonding.
At present, inert gas or gases such as oxygen, nitrogen and the like are generally adopted as hot pressing media in common hot isostatic pressing equipment, but because the heat conductivity of the gases is poor, heat generated in the equipment can not be efficiently transferred to a workpiece, and the equipment is difficult to cool down in a short time after the high-temperature and high-pressure treatment of the workpiece is completed, so that the energy is wasted, the production period is prolonged, and the production efficiency is reduced. Meanwhile, because gas molecules are small and difficult to seal, the requirements on the sealing performance of hot isostatic pressing equipment and a finished part sheath are high, and the production difficulty of the equipment is high.
Disclosure of Invention
In order to solve the technical problem, the invention aims to provide a hot isostatic pressing system for an article, which comprises a main container, a liquid metal container, a supercharger, a heating system and a cooling system;
the main container is used for completing hot isostatic pressing of the finished piece, and liquid metal is filled in the main container during operation;
the liquid metal container is internally stored with liquid metal and is communicated with the main container through a liquid inlet pipeline and a liquid outlet pipeline;
the liquid inlet pipeline is provided with the supercharger and a liquid inlet valve, and the liquid outlet pipeline is provided with a liquid pump and a liquid outlet valve;
the pressure booster is used for pressing the liquid metal in the liquid metal container into the main container and increasing the pressure in the main container;
the heating system and the cooling system are used for heating and cooling the main container respectively.
In some embodiments, the vacuum pump is communicated with the main container through a vacuum pipeline, and a vacuum isolation valve and a pressure vacuum meter are arranged on the vacuum pipeline;
and the vacuum pump is used for pumping the main container to a preset vacuum degree before filling the liquid metal in the main container.
In some embodiments, the system further comprises a control system, wherein a temperature sensor and a pressure sensor are arranged in the main container, and the control system is electrically connected with the temperature sensor, the pressure sensor and each controllable electronic device;
the control system is used for controlling the work of the supercharger, the heating system and the cooling system according to preset temperature and pressure curves, so that the temperature and the pressure in the main container are changed according to the preset temperature and pressure curves.
In some embodiments, the heating system includes a heating tube disposed within the outer shell of the primary container.
In some embodiments, the cooling system includes a heat exchanger and a cooling tower, the heat exchanger being connected to the main vessel and the cooling tower, respectively, by heat exchange lines.
In some embodiments, the primary container comprises an upper lid, the bottom end of which is provided with a seal.
In some embodiments, a filter is disposed on each of the liquid inlet pipe and the liquid outlet pipe.
In another aspect, the present invention provides a hot isostatic pressing method for an article, which uses the hot isostatic pressing system for an article, and includes the following steps:
s1, placing the workpiece into the main container directly or after being subjected to wrapping treatment, and then sealing the main container;
s2, opening the vacuum pump and the vacuum isolation valve, pumping the interior of the main container to a preset vacuum degree, and then closing the vacuum isolation valve and the vacuum pump;
s3, opening the liquid inlet valve and the pressure booster to enable the liquid metal in the liquid metal container to enter the main container until the main container is filled with the liquid metal;
s4, the control system controls the supercharger, the heating system and the cooling system to work according to preset temperature and pressure curves, so that the temperature and the pressure in the main container change according to the preset temperature and pressure curves, and hot isostatic pressing of the workpiece is completed;
s5, opening the liquid outlet valve to enable the liquid metal in the main container to automatically flow into the liquid metal container; and after the pressure of the liquid metal container is equal to that of the main container, starting a liquid pump, completely recovering the liquid metal into the liquid metal container, closing the liquid outlet valve, and taking out the workpiece in the main container.
In some embodiments, the step S4 specifically includes a temperature and pressure raising stage, a temperature and pressure maintaining stage, and a temperature and pressure reducing stage according to the preset temperature and pressure curve.
In some embodiments, the liquid metal used is gallium, a gallium indium alloy, or a gallium indium tin alloy.
Compared with the prior art, the invention has the advantages that: according to the hot isostatic pressing system and method for the workpiece, provided by the invention, the liquid metal is used as a hot pressing medium, and as the liquid metal has higher thermal conductivity, the temperature rising and reducing speeds of the equipment are both greatly improved, so that the production efficiency can be obviously improved; in addition, compared with the conventional inert gas such as argon, the liquid metal is more beneficial to sealing, the requirement on the sealing property of a high-pressure container and a workpiece sheath is lower, the production difficulty of equipment is reduced, and the liquid metal is not easy to permeate into a workpiece to pollute the workpiece; the liquid metal has visibility, has no suffocation danger compared with a gas medium, and is high in safety. The hot isostatic pressing system can be used for a powder metallurgy process for directly heating, pressurizing, sintering and forming powder, or carrying out hot densification treatment on a formed casting, or diffusion bonding of the same or different materials, and the like.
Drawings
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
Fig. 1 is a schematic view of a hot isostatic pressing system for an article according to the present invention.
List of reference numerals: 1. a liquid metal container; 2. a filter; 3. a supercharger; 4. a liquid pump; 5. a liquid outlet valve; 6. a liquid inlet valve; 7. a heating system; 8. a heat exchanger; 9. a cooling tower; 10. a vacuum pump; 11. a pressure vacuum gauge; 12. a vacuum isolation valve; 13. a liquid metal; 14. a seal member; 15. an upper cover; 16. a main vessel; 17. manufacturing a workpiece; 18. and (5) controlling the system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
Referring to fig. 1, a hot isostatic pressing system for an article according to the invention comprises a main container 16, a liquid metal container 1, a pressurizer 3, a heating system 7 and a cooling system; the main container 16 is used for completing hot isostatic pressing of the object 17, and in operation, the main container 16 is filled with liquid metal 13; liquid metal is stored in the liquid metal container 1, and the liquid metal container is communicated with the main container 16 of the container 1 through a liquid inlet pipeline and a liquid outlet pipeline; a booster 3 and a liquid inlet valve 6 are arranged on the liquid inlet pipeline, and a liquid pump 4 and a liquid outlet valve 5 are arranged on the liquid outlet pipeline; the pressure booster 3 is used for pressing the liquid metal in the liquid metal container 1 into the main container 16 and for increasing the pressure in the main container 16; the heating system 7 and the cooling system are used to heat and cool the main tank 16, respectively.
According to the hot isostatic pressing system for the workpiece, provided by the invention, the liquid metal is used as a hot pressing medium, and the liquid metal has higher heat conductivity, so that the heating and cooling speeds of the equipment are greatly increased, and the production efficiency can be obviously improved; in addition, compared with the conventional inert gas such as argon, the liquid metal is more beneficial to sealing, the requirement on the sealing property of a high-pressure container and a workpiece sheath is lower, the production difficulty of equipment is reduced, and the liquid metal is not easy to permeate into a workpiece to pollute the workpiece; the liquid metal has visibility, has no suffocation danger compared with a gas medium, and is high in safety. The hot isostatic pressing system can be used for a powder metallurgy process for directly heating, pressurizing, sintering and forming powder, or carrying out hot densification treatment on a formed casting, or diffusion bonding of the same or different materials, and the like.
In the present invention, the liquid metal refers to a metal or a metal compound having a low melting point and being in a liquid state at normal temperature or slightly higher than normal temperature. It has weak corrosion to material, great temperature difference between melting point and boiling point and fixed volume. The liquid metal has a great heat conductivity coefficient which is tens of times that of the traditional working medium, for example, the heat conductivity of argon at normal temperature and normal pressure is 0.01795W/(m.K), and the heat conductivity of liquid metal gallium is about 30W/(m.K). The flow regularity is similar to that of general liquid, and the pressure loss is small. Specifically, gallium indium alloy, or gallium indium tin alloy may be used as the liquid metal, and other suitable materials may be used.
In addition, the main container 16 should be made of a material capable of withstanding high temperature and high pressure; the main container 16 may include an upper cover 15, and a sealing member 14 is provided at a lower end of the upper cover 15. Preferably, the main container 16 can withstand a high pressure of 0.1 to 200MPa and a temperature of 20 to 2000 ℃.
Preferably, the hot isostatic pressing system further comprises a vacuum pump 10, wherein the vacuum pump 10 is communicated with the main container 16 through a vacuum pipeline, and a vacuum isolation valve 12 and a pressure vacuum gauge 11 are arranged on the vacuum pipeline; the vacuum pump 10 is used to pump the main vessel 16 to a predetermined vacuum degree before filling the main vessel 16 with the liquid metal.
Preferably, the hot isostatic pressing system further comprises a control system 18, wherein a temperature sensor and a pressure sensor (not shown in the figure) are arranged in the main container 16, and the control system 18 is electrically connected with the sensors and each controllable electric device; the control system 18 is used for controlling the operations of the supercharger 3, the heating system 7 and the cooling system according to a preset temperature and pressure curve, so that the temperature and the pressure in the main container 16 are changed according to the preset temperature and pressure curve. The control system 18 may be, for example, a center console or a computer in a center room.
Further, the heating system 7 comprises a heating pipe, which is arranged inside the outer shell of the main vessel 16, as shown in fig. 1. In addition, the cooling system can comprise a heat exchanger 8 and a cooling tower 9, wherein the heat exchanger 8 is respectively connected with the main container 16 and the cooling tower 9 through heat exchange pipelines; when cooling is required, the heat of the main vessel 16 is transferred to the heat exchanger 8 and exchanges heat with the external cooling tower 9 in the heat exchanger 8.
Preferably, as shown in fig. 1, filters 2 are disposed on the liquid inlet pipeline and the liquid outlet pipeline to prevent impurities from entering and exiting.
In another aspect, the present invention provides a hot isostatic pressing method for an article, the method using the hot isostatic pressing system described above, and including the steps of:
s1, placing the workpiece 17 in the main container 16 directly or after being wrapped, and then sealing the main container 16; if the part 17 is a powder, it is first subjected to a sheathing process, which is a container for holding the powder and separating it from the medium (liquid metal in the present invention).
S2, opening the vacuum pump 10 and the vacuum isolation valve 12, pumping the interior of the main container 16 to a preset vacuum degree, and then closing the vacuum isolation valve 12 and the vacuum pump 10; in this step, since the main container 16 cannot be evacuated to an absolute vacuum, the main container is evacuated to a predetermined vacuum degree.
S3, the liquid inlet valve 6 and the booster 3 are opened, so that the liquid metal in the liquid metal container 1 enters the main container 16 until the main container 16 is full of the liquid metal.
And S4, the control system 18 controls the operation of the supercharger 3, the heating system 7 and the cooling system according to the preset temperature and pressure curve, so that the temperature and the pressure in the main container 16 are changed according to the preset temperature and pressure curve, and the hot isostatic pressing of the workpiece 17 is completed.
S5, opening the liquid outlet valve 5 to enable the liquid metal in the main container 16 to automatically flow into the liquid metal container 1; and after the pressure of the liquid metal container 1 is equal to the pressure of the main container 16, starting the liquid pump 4, completely recovering the liquid metal into the liquid metal container 1, closing the liquid outlet valve 5, and taking out the workpiece in the main container 16.
Further, according to the preset temperature and pressure curves, step S4 specifically includes a temperature and pressure increasing stage, a temperature and pressure maintaining stage, and a temperature and pressure decreasing stage.
Two specific embodiments for applying the invention are described below:
example 1
In this embodiment, the workpiece to be processed is TC4 powder, and TC4 powder needs to be subjected to hot isostatic pressing.
Specifically, a finished piece sheath is designed and manufactured according to the technical requirements of products, TC4 powder is filled in the sheath, the sheath is vibrated, and the sheath is sealed after vacuum pumping. The lid 15 of the main container 16 is opened and the wrap is placed on a stage inside the main container 16. The vacuum pump 10 is turned on to pump the main container 16 to a desired vacuum level. The booster 3 and the liquid inlet valve 6 are opened to fill the main vessel 16 with liquid metal. A profile of the temperature and pressure is set in the control system 18, the profile comprising three phases: in the temperature and pressure raising stage, the supercharger 3 and the liquid inlet valve 6 are kept open, the heating system 7 is started, the temperature and the pressure of the equipment are raised to 800-1200 ℃ within 0.1-1 h, and the pressure is raised to 90-150 MPa; in the stage of heat preservation and pressure maintaining, after the equipment reaches the set temperature and pressure value, the equipment is subjected to heat preservation and pressure maintaining for 1-5 hours under the set temperature and pressure condition, and in the stage, the controller can automatically correct parameters according to the measured temperature and pressure value and the set value and control the heating or cooling system to be opened and closed so as to realize heat preservation and pressure maintaining; and in the stage of temperature and pressure reduction, the heat exchanger and the cooling tower 9 are opened, the temperature is reduced to room temperature and normal pressure within 0.5-6 h, in the process, after the temperature is reduced to below 600 ℃, the liquid outlet valve 5 can be opened to recover liquid metal, after the liquid metal is completely recovered, the liquid outlet valve 5 is closed, after the temperature is continuously reduced for a period of time, the heat exchanger and the cooling tower 9 can be closed, the upper cover 15 is opened, the sheath is taken out, the sheath is removed, and the final product is obtained after subsequent treatment. The density of the obtained product reaches more than 99 percent, and the mechanical property of the product is equivalent to that of a forged piece.
Example 2
In this embodiment, the workpiece to be processed is a K445 superalloy casting, and the K445 superalloy casting needs to be subjected to hot isostatic pressing to improve the performance thereof.
Specifically, the upper lid 15 of the main container 16 is opened, and the product is placed on a stage inside the main container 16. The vacuum pump 10 is turned on to pump the main container 16 to a desired vacuum level. The booster 3 and the liquid inlet valve 6 are opened to fill the main vessel 16 with liquid metal. A profile of the temperature and pressure is set in the control system 18, the profile comprising three phases: in the temperature and pressure raising stage, the supercharger 3 and the liquid inlet valve 6 are kept open, the heating system 7 is started, the temperature and the pressure of the equipment are raised to 800-1500 ℃ within 0.1-1 h, and the pressure is raised to 100-170 MPa; in the stage of heat preservation and pressure maintaining, after the equipment reaches the set temperature and pressure value, the equipment is subjected to heat preservation and pressure maintaining for 1-5 hours under the set temperature and pressure condition, and in the stage, the controller can automatically correct parameters according to the measured temperature and pressure value and the set value and control the heating or cooling system to be opened and closed so as to realize heat preservation and pressure maintaining; and in the cooling and depressurizing stage, the heat exchanger and the cooling tower 9 are started, the temperature is reduced to room temperature and normal pressure within 0.5-7 h, in the process, the liquid outlet valve 5 can be opened to recover liquid metal after the temperature is reduced to below 600 ℃, the liquid outlet valve 5 is closed after the liquid metal is completely recovered, the heat exchanger and the cooling tower 9 can be closed after the temperature is continuously reduced for a period of time, the upper cover 15 is opened, the workpiece is taken out, and the final product is obtained after the subsequent treatment. After the casting is treated by hot isostatic pressing, the density is improved by 0.2 percent.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hot isostatic pressing system for an article, comprising a main vessel (13), a liquid metal vessel (1), a pressurizer (3), a heating system (7) and a cooling system;
the main container (13) is used for completing hot isostatic pressing of the finished piece (17), and in operation, the main container (16) is filled with liquid metal (13);
liquid metal is stored in the liquid metal container (1), and the liquid metal container is communicated with the main container (16) of the liquid metal container (1) through a liquid inlet pipeline and a liquid outlet pipeline;
the liquid inlet pipeline is provided with the supercharger (3) and a liquid inlet valve (6), and the liquid outlet pipeline is provided with a liquid pump (4) and a liquid outlet valve (5);
the pressure booster (3) is used for pressing the liquid metal in the liquid metal container (1) into the main container (16) and increasing the pressure in the main container (16);
the heating system (7) and the cooling system are used for heating and cooling the main container (16), respectively.
2. The hot isostatic pressing system of articles according to claim 1, further comprising a vacuum pump (10), wherein the vacuum pump (10) is in communication with the main container (16) through a vacuum line, and wherein a vacuum isolation valve (12) and a pressure vacuum gauge (11) are arranged on the vacuum line;
the vacuum pump (10) is used for pumping the interior of the main container (16) to a preset vacuum degree before the main container (16) is filled with liquid metal.
3. The hot isostatic pressing system of articles according to claim 2, further comprising a control system (18), wherein a temperature sensor and a pressure sensor are arranged in the main container (16), and wherein the control system (18) is electrically connected to the temperature sensor, the pressure sensor and each controllable electronic device;
the control system (18) is used for controlling the operations of the supercharger (3), the heating system (7) and the cooling system according to preset temperature and pressure curves, so that the temperature and the pressure in the main container (16) are changed according to the preset temperature and pressure curves.
4. The hot isostatic pressing system of articles according to claim 1, wherein the heating system (7) comprises a heating tube arranged within the outer shell of the primary container (16).
5. The hot isostatic pressing system of articles according to claim 1, wherein the cooling system comprises a heat exchanger (8) and a cooling tower (9), the heat exchanger (8) being connected to the main vessel (16) and the cooling tower (9) respectively by heat exchange lines.
6. The hot isostatic pressing system of articles according to claim 1, wherein the primary container (16) comprises an upper lid (15), a bottom end of the upper lid (15) being provided with a seal (14).
7. The system of claim 1, wherein the filters (2) are disposed on both the inlet and outlet lines.
8. A method for hot isostatic pressing of an article, using the hot isostatic pressing system of the article of claim 3, and comprising the steps of:
s1, placing the workpiece (17) into the main container (16) directly or after being subjected to wrapping treatment, and then sealing the main container (16);
s2, opening the vacuum pump (10) and the vacuum isolation valve (12), pumping the interior of the main container (16) to a preset vacuum degree, and then closing the vacuum isolation valve (12) and the vacuum pump (10);
s3, opening the liquid inlet valve (6) and the pressure booster (3) to enable liquid metal in the liquid metal container (1) to enter the main container (16) until the main container (16) is filled with the liquid metal;
s4, the control system (18) controls the operation of the supercharger (3), the heating system (7) and the cooling system according to a preset temperature and pressure curve, so that the temperature and the pressure in the main container (16) are changed according to the preset temperature and pressure curve, and the hot isostatic pressing of the workpiece (17) is completed;
s5, opening the liquid outlet valve (5) to enable the liquid metal in the main container (16) to automatically flow into the liquid metal container (1); and after the pressure of the liquid metal container (1) is equal to that of the main container (16), starting the liquid pump (4), completely recovering the liquid metal into the liquid metal container (1), closing the liquid outlet valve (5), and taking out the workpiece in the main container (16).
9. The method for hot isostatic pressing of articles according to claim 8, wherein step S4 includes a temperature and pressure raising stage, a temperature and pressure maintaining stage, and a temperature and pressure reducing stage according to the preset temperature and pressure curve.
10. The method of hot isostatic pressing of articles according to claim 8, wherein the liquid metal used is gallium, gallium indium alloy or gallium indium tin alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010058980.6A CN111360260A (en) | 2020-01-18 | 2020-01-18 | Hot isostatic pressing system and method for workpiece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010058980.6A CN111360260A (en) | 2020-01-18 | 2020-01-18 | Hot isostatic pressing system and method for workpiece |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117300129A (en) * | 2023-11-30 | 2023-12-29 | 四川力能超高压设备有限公司 | Isostatic compaction device |
| CN117577953A (en) * | 2024-01-19 | 2024-02-20 | 北京海德利森科技有限公司 | Hot isostatic pressing process method and device applied to solid-state lithium battery |
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| CN1114248A (en) * | 1994-06-15 | 1996-01-03 | 冶金工业部钢铁研究总院 | Sintering heat isostatic device and cooling method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117300129A (en) * | 2023-11-30 | 2023-12-29 | 四川力能超高压设备有限公司 | Isostatic compaction device |
| CN117577953A (en) * | 2024-01-19 | 2024-02-20 | 北京海德利森科技有限公司 | Hot isostatic pressing process method and device applied to solid-state lithium battery |
| CN117577953B (en) * | 2024-01-19 | 2024-03-29 | 北京海德利森科技有限公司 | Hot isostatic pressing process method and device applied to solid-state lithium battery |
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