CN1737484A - Heat pipe vacuum sealing method and apparatus thereof - Google Patents
Heat pipe vacuum sealing method and apparatus thereof Download PDFInfo
- Publication number
- CN1737484A CN1737484A CNA2004100643534A CN200410064353A CN1737484A CN 1737484 A CN1737484 A CN 1737484A CN A2004100643534 A CNA2004100643534 A CN A2004100643534A CN 200410064353 A CN200410064353 A CN 200410064353A CN 1737484 A CN1737484 A CN 1737484A
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- heat pipe
- sealing
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- welding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0283—Means for filling or sealing heat pipes
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- Life Sciences & Earth Sciences (AREA)
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- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
This invention relates to a heat pipe vacuum sealing method and device, characterized in that it uses heat transfer agent heat exchanging equipment to seal. The sealing method comprises the following steps: a) preparing the sealing hole in the heat pipe to be sealed; b) evacuating and charging pump in vacuum chamber; c) welding the sealing to the prepared sealing hole by the friction welding or ultrasonic welding, forming sealing welding. The sealing device comprises vacuum generating system, a heat pipe to be sealed, an orientation fasten system and a prefilling system, wherein the heat pipe and the orientation fasten system are set in the vacuum chamber, after evacuating and prefilling, the fasten system will grasp the sealing block to the sealing hole to weld.
Description
Technical field
The present invention relates to a kind of heat pipe vacuum sealing method and device, exactly is the mouth-sealing method and the device of heat transfer medium heat-exchange apparatus in the middle of a kind of the utilization.
Background technology
" hot pipe technique and engineering thereof are used " (ISBN 7-5025-2752-4/TQ.1212) described several heat pipe vacuum sealing method and devices commonly used at present.Its method all is the reservation of heat pipe to be packaged to be sealed by capillary vacuumize, and injects working media after reaching the vacuum of technological requirement, and at once capillary is flattened and seal, and then weld.The heat that welding process produces easily makes working media surpass its operating temperature, produces incoagulable gas, even heat pipe is scrapped.Productivity ratio is low, and the heat pipe package quality can't guarantee that the packing forms of its end of while is waste material not only, and the use of opposite heat tube also has certain influence.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing heat pipe vacuum sealing technology, a kind of productivity ratio height is provided, saves and seal metal material and working media is influenced little heat pipe vacuum sealing method and device.
A kind of heat pipe vacuum sealing method, heat pipe to be packaged is reserved and is sealed the hole, finishes vacuumizing and the topping up process in vacuum chamber, and uses friction welding (FW) or supersonic welding and will seal plug and be welded to reserve and seal on the hole, and forms airtight weld seam.
It is wherein said that to seal plug can be cylinder, cone, T font revolving body, free end less than being held a kind of in the revolving body that end and bus seamlessly transit.
Described a kind of heat pipe vacuum sealing method, reserving and to seal the hole can be wherein a kind of of cylindrical hole, conical bore, counterbore.
A kind of heat pipe vacuum sealing device, comprise vacuum generating system, heat pipe to be packaged and locating clip clamping system thereof, hydromechanical system, heat pipe to be packaged is reserved and is sealed the hole, heat pipe to be packaged and locating clip clamping system thereof are installed in the vacuum chamber, finish vacuumize with the topping up process after, the grasping system clamping is sealed plug as for sealing the place, hole, finishes heat pipe to be packaged by friction welding system or ultrasonic welding system and reserves the soldering and sealing of sealing the hole and sealing plug.
Described a kind of heat pipe vacuum sealing device, wherein said hydromechanical system, the topping up pipe extend out to the reservation of liquid pipe outlet aligning heat pipe and seals the hole during topping up, and working media flows into heat pipe to be packaged by the topping up pipe, finishes topping up.
Described a kind of heat pipe vacuum sealing device, wherein said friction welding system can adopt any in continuous friction welding (FW), flywheel friction welding, mixed type spin friction weldering and the relative room friction welding (FW).
Described a kind of heat pipe vacuum sealing device, wherein said ultrasonic welding system is made up of supersonic generator, transducer, vibration-sensing rod, amplitude transformer, coupling bar, last applicator.
Described a kind of heat pipe vacuum sealing device, wherein said vacuum chamber be provided with can opening and closing door, form by flange, door-plate, turning joint, pre-tightening mechanism etc.
Described a kind of heat pipe vacuum sealing device, wherein said vacuum chamber can be the closed container that holds friction welding system or ultrasonic welding system.
Described a kind of heat pipe vacuum sealing device, if adopt friction welding system, wherein said vacuum chamber can stretch into by the rotating shaft of the transmission friction welding system welding power of vacuum seal sealing and drive heat pipe and locating clip clamping system moving linearly thereof to be packaged and apply friction pressure and the axle of upsetting force.
Described a kind of heat pipe vacuum sealing device, if adopt friction welding system, wherein said vacuum chamber can stretch into by the transmission friction welding system welding power of vacuum seal sealing and apply friction pressure and rotate and straight-line axle upsetting force the time.
Described a kind of heat pipe vacuum sealing device, wherein said vacuum seal can reasonably select for use O type vacuum with sealing ring, J type vacuum with sealing ring, JO type vacuum with sealing ring, matrix type vacuum with any or its combination in sealing ring, liquid metal sealing device, the device for sealing magnetic fluid.
Described a kind of heat pipe vacuum sealing device, if adopt friction welding system, the wherein said grasping system that seals plug can be selected wherein a kind of of chuck, chuck for use.
Described a kind of heat pipe vacuum sealing device, if adopt ultrasonic welding system, the wherein said grasping system that seals plug can be selected wherein a kind of of power chuck, power chuck for use; The power chuck of selecting for use, power chuck center process a through hole, and last sound level is finished the welding of sealing plug and sealing the hole by this through hole.
The invention has the beneficial effects as follows: need not capillary during the heat pipe encapsulation, close door for vacuum chamber after heat pipe is clamped by the location of the chucking appliance system in the vacuum chamber and can vacuumize encapsulation by technological requirement, the automaticity height has reduced labour intensity, has improved productivity ratio; Because the input heat when having adopted friction welding system or ultrasonic welding system to make to seal welding reduces significantly, the working media of heat pipe is produced less even do not produce incoagulable gas, the encapsulation quality of heat pipe increases; Heat pipe is reserved and sealed and the corresponding plug that seals, and is simple in structure, and metal material is saved in processing easily.
Description of drawings
Fig. 1 is the schematic diagram of first embodiment; Fig. 2 is the schematic diagram of second embodiment; Fig. 3 is the schematic diagram of the 3rd embodiment; Fig. 4 is the schematic diagram of the 4th embodiment;
Wherein 1 is friction welding system; 2 is axle; 3 for sealing the grasping system of plug; 4 is the topping up pipe that is connected with the topping up control system; 5 is heat pipe and locating clip clamping system thereof to be packaged; 6 for providing the axle of friction pressure and upsetting force; 7 is that the hole is sealed in heat pipe reservation to be packaged; 8 for sealing plug; 9 is vacuum chamber; 10 is the flange that is connected with vacuum generating system; 11 is the last sound level of ultrasonic welding system; 12 is ultrasonic welding system.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
A kind of heat pipe vacuum sealing method, heat pipe to be packaged is reserved and is sealed hole 7, finishes vacuumizing and the topping up process in vacuum chamber 9, and uses friction welding (FW) 1 or supersonic welding 12 and will seal plug 8 and be welded to reserve and seal on 7, and forms airtight weld seam.
It is described that to seal plug 8 can be cylinder, cone, T font revolving body, free end less than being held a kind of in the revolving body that end and bus seamlessly transit.
Described a kind of heat pipe vacuum sealing method, reserving and to seal 7 can be wherein a kind of of cylindrical hole, conical bore, counterbore.
A kind of heat pipe vacuum sealing device, comprise vacuum generating system, heat pipe to be packaged and locating clip clamping system 5 thereof, hydromechanical system, heat pipe to be packaged is reserved and is sealed hole 7, heat pipe to be packaged and locating clip clamping system 5 thereof are installed in the vacuum chamber 9, finish vacuumize with the topping up process after, grasping system 3 clampings are sealed plug 8 as for sealing 7 places, hole, finish heat pipe to be packaged by friction welding system 1 or ultrasonic welding system 12 and reserve the soldering and sealing of sealing hole 7 and sealing plug 8.
Described a kind of heat pipe vacuum sealing device, wherein said hydromechanical system, topping up pipe 4 extend out to the reservation of topping up pipe outlet aligning heat pipe and seals hole 7 during topping up, and working media flows into heat pipe 5 to be packaged by topping up pipe 4, finishes topping up.
Described a kind of heat pipe vacuum sealing device, wherein said friction welding system 1 can adopt any in continuous friction welding (FW), flywheel friction welding, mixed type spin friction weldering and the relative room friction welding (FW).
Described a kind of heat pipe vacuum sealing device, wherein said ultrasonic welding system 12 is made up of supersonic generator, transducer, vibration-sensing rod, amplitude transformer, coupling bar, last applicator 11.
Described a kind of heat pipe vacuum sealing device, wherein said vacuum chamber 9 be provided with can opening and closing door, form by flange, door-plate, turning joint, pre-tightening mechanism etc.
Described a kind of heat pipe vacuum sealing device, wherein said vacuum chamber 9 can be the closed containers that holds friction welding system 1 or ultrasonic welding system 12.
Described a kind of heat pipe vacuum sealing device, if adopt friction welding system 1, wherein said vacuum chamber 9 can stretch into by the rotating shaft 2 of the transmission friction welding system welding power of vacuum seal sealing and drive heat pipe and locating clip clamping system moving linearly thereof to be packaged and apply friction pressure and the axle 6 of upsetting force.
Described a kind of heat pipe vacuum sealing device, if adopt friction welding system 1, wherein said vacuum chamber 9 can stretch into by the transmission friction welding system welding power of vacuum seal sealing and apply friction pressure and rotate and straight-line axle 2 upsetting force the time.
Described a kind of heat pipe vacuum sealing device, wherein said vacuum seal can reasonably select for use O type vacuum with sealing ring, J type vacuum with sealing ring, JO type vacuum with sealing ring, matrix type vacuum with any or its combination in sealing ring, liquid metal sealing device, the device for sealing magnetic fluid.
Described a kind of heat pipe vacuum sealing device, if adopt friction welding system 1, the wherein said grasping system 3 that seals plug 8 can be selected wherein a kind of of chuck, chuck for use.
Described a kind of heat pipe vacuum sealing device, if adopt ultrasonic welding system 12, the wherein said grasping system 3 that seals plug 8 can be selected wherein a kind of of power chuck, power chuck for use; The power chuck of selecting for use, power chuck center process a through hole, and last sound level 11 is finished the welding of sealing plug and sealing the hole by this through hole.
Its course of work is as follows: the heat pipe vacuum sealing device that adopts friction welding system 1 as Fig. 1, Fig. 3, Fig. 4, comprise vacuum generating system, heat pipe to be packaged and locating clip clamping system 5 thereof, hydromechanical system, heat pipe to be packaged is reserved and is sealed hole 7, heat pipe to be packaged and locating clip clamping system 5 thereof are installed in the vacuum chamber 9, vacuum generating system by be communicated with flange 10 finish vacuumize after, topping up pipe 4 extend out to the 4 outlet aligning heat pipes reservations of topping up pipe and seals hole 7, working media flows into heat pipe 5 to be packaged by topping up pipe 4, finishes topping up.The grasping system 3 of plug 8 is sealed in clamping then, wiped welding system 1 and driven rotation at a high speed, seal plug 8 simultaneously and seal hole 7 generation straight line relative displacements, distance is constantly dwindled until the friction stree that reaches technological requirement, seals plug 8 and seals hole 7 contact-making surfaces and begin friction heating, and plastic deformation takes place simultaneously, after reaching the deflection or fraction time of technological requirement, apply bigger axial force, carry out upset and finish welding, the heat pipe encapsulation finishes.
Adopt the heat pipe vacuum sealing device of ultrasonic welding system 12 as Fig. 2, comprise vacuum generating system, heat pipe to be packaged and locating clip clamping system 5 thereof, hydromechanical system, heat pipe to be packaged is reserved and is sealed hole 7, heat pipe to be packaged and locating clip clamping system 5 thereof are installed in the vacuum chamber 9, vacuum generating system by be communicated with flange 10 finish vacuumize after, topping up pipe 4 extend out to the reservation of topping up pipe outlet aligning heat pipe and seals hole 7, working media flows into heat pipe 5 to be packaged by topping up pipe 4, finishes topping up.The grasping system 3 of plug 8 is sealed in clamping then, seal plug 8 simultaneously and seal hole 7 generation straight line relative displacements, distance is constantly dwindled until sealing plug 8 and sealing hole 7 and contact, this moment, grasping system 3 unclamped sealing the clamping of plug 8, go up simultaneously sound level 11 and contact and keep certain pressure, transmit the elastic vibration energy of ultrasonic welding systems 12 by last sound level 11, and keep with sealing plug 8, finish welding after reaching time of welding process requirement, the heat pipe encapsulation finishes.
Claims (10)
1. a heat pipe vacuum sealing method is characterized in that, heat pipe to be packaged is reserved and sealed the hole, finishes vacuumizing and the topping up process in vacuum chamber, and uses friction welding (FW) or supersonic welding and will seal plug and be welded to reserve and seal on the hole, and forms airtight weld seam.
2. a kind of heat pipe vacuum sealing method according to claim 1 is characterized in that, wherein said to seal plug can be cylinder, cone, T font revolving body, free end less than being held a kind of in the revolving body that end and bus seamlessly transit.
3. a kind of heat pipe vacuum sealing method according to claim 1 is characterized in that, reserving and to seal the hole can be wherein a kind of of cylindrical hole, conical bore, counterbore.
4. heat pipe vacuum sealing method and device, comprise vacuum generating system, heat pipe to be packaged and locating clip clamping system thereof, hydromechanical system, it is characterized in that, heat pipe to be packaged is reserved and is sealed the hole, heat pipe to be packaged and locating clip clamping system thereof are installed in the vacuum chamber, finish vacuumize with the topping up process after, the grasping system clamping is sealed plug as for sealing hole place, finishes heat pipe to be packaged by friction welding system or ultrasonic welding system and reserves and seal hole and the soldering and sealing of sealing plug.
5. a kind of heat pipe vacuum sealing device according to claim 4 is characterized in that, wherein said friction welding system can adopt any in continuous friction welding (FW), flywheel friction welding, mixed type spin friction weldering and the relative room friction welding (FW).
6. a kind of heat pipe vacuum sealing device according to claim 4 is characterized in that wherein said vacuum chamber can be the closed container that holds friction welding system or ultrasonic welding system.
7. according to claim 4 and the described a kind of heat pipe vacuum sealing device of claim 5, it is characterized in that wherein said vacuum chamber can stretch into by the rotating shaft of the transmission friction welding system welding power of vacuum seal sealing and drive heat pipe and locating clip clamping system moving linearly thereof to be packaged and apply friction pressure and the axle of upsetting force.
8. according to claim 4 and the described a kind of heat pipe vacuum sealing device of claim 5, it is characterized in that wherein said vacuum chamber can stretch into by the transmission friction welding system welding power of vacuum seal sealing and apply friction pressure and rotate and straight-line axle upsetting force the time.
9. according to claim 4 and the described a kind of heat pipe vacuum sealing device of claim 5, it is characterized in that the wherein said grasping system that seals plug can be selected wherein a kind of of chuck, chuck for use.
10. a kind of heat pipe vacuum sealing device according to claim 4 is characterized in that, the grasping system that seals plug of wherein said ultrasonic welding system can be selected wherein a kind of of power chuck, power chuck for use; The power chuck of selecting for use, power chuck center process a through hole, and last sound level is finished the welding of sealing plug and sealing the hole by this through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100643534A CN1737484A (en) | 2004-08-19 | 2004-08-19 | Heat pipe vacuum sealing method and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100643534A CN1737484A (en) | 2004-08-19 | 2004-08-19 | Heat pipe vacuum sealing method and apparatus thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1737484A true CN1737484A (en) | 2006-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100643534A Pending CN1737484A (en) | 2004-08-19 | 2004-08-19 | Heat pipe vacuum sealing method and apparatus thereof |
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| CN (1) | CN1737484A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009039774A1 (en) * | 2007-09-20 | 2009-04-02 | Zhejiang Acmecools Electronic Technology Co., Ltd | A manufacturing method of a heat transfer device without pouring tube |
| CN101266111B (en) * | 2008-04-01 | 2011-09-07 | 哈尔滨工业大学 | Normal pressure micro heat pipe vacuum liquid-injecting packaging process |
| CN102248405A (en) * | 2011-06-16 | 2011-11-23 | 河海大学常州校区 | Automatic exhaust sealing-in device for solar superconducting heat pipe and method thereof |
| CN102494550A (en) * | 2011-12-29 | 2012-06-13 | 四川鋈新能源科技有限公司 | Temperature-equalizing plate and device and method for manufacturing temperature-equalizing plate |
| CN102506599A (en) * | 2011-12-27 | 2012-06-20 | 华南理工大学 | Micro heat pipe vacuuming and clamping device |
| CN102735084A (en) * | 2011-04-08 | 2012-10-17 | 中国科学院工程热物理研究所 | Accurate filling equipment and method for high temperature heat pipe requiring small amount of alkali metal working medium |
| CN102785059A (en) * | 2012-06-26 | 2012-11-21 | 慈溪市宏迪纺织机械有限公司 | Process for manufacturing bolster of spinning machine |
| CN103105083A (en) * | 2013-02-28 | 2013-05-15 | 张波 | Solid-state quantitative infusion method of heat working media |
| CN103639707A (en) * | 2013-12-26 | 2014-03-19 | 烟台市三立工业有限公司 | Dedicated equipment for producing harmonica strip type heat energy board |
| CN104121795A (en) * | 2014-07-31 | 2014-10-29 | 海康创业(北京)科技有限公司 | Multi-welded-junction metal heat pipe and machining method thereof |
| CN104475967A (en) * | 2014-12-30 | 2015-04-01 | 东北大学 | Vacuum stirring friction welding device and manufacturing method of metal composite plate |
| CN104959727A (en) * | 2015-07-29 | 2015-10-07 | 江苏科技大学 | Composite sealing device for thin-wall aluminum alloy pipe ends and welding method thereof |
| CN105351687A (en) * | 2015-11-23 | 2016-02-24 | 河南南阳市油田机械制造有限公司 | Heat isolation oil pipe vacuumizing sealing device |
| EP3030374A4 (en) * | 2013-08-09 | 2017-04-19 | United Technologies Corporation | Method for integrating multiple materials in a foil consolidation of additive manufacturing process |
| CN107470775A (en) * | 2017-09-26 | 2017-12-15 | 深圳市宝利通电子有限公司 | Copper aluminium friction welding apparatuses |
| GB2574377A (en) * | 2018-05-29 | 2019-12-11 | Acergy France SAS | Sealing hollow structures |
| CN112665442A (en) * | 2020-12-23 | 2021-04-16 | 无锡卡兰尼普热管理技术有限公司 | Sealing structure and sealing method applied to aluminothermic circuit board |
| CN114871538A (en) * | 2022-06-20 | 2022-08-09 | 上海亘满科技有限公司 | Magnesium ammonia heat pipe welding method |
-
2004
- 2004-08-19 CN CNA2004100643534A patent/CN1737484A/en active Pending
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009039774A1 (en) * | 2007-09-20 | 2009-04-02 | Zhejiang Acmecools Electronic Technology Co., Ltd | A manufacturing method of a heat transfer device without pouring tube |
| CN101266111B (en) * | 2008-04-01 | 2011-09-07 | 哈尔滨工业大学 | Normal pressure micro heat pipe vacuum liquid-injecting packaging process |
| CN102735084A (en) * | 2011-04-08 | 2012-10-17 | 中国科学院工程热物理研究所 | Accurate filling equipment and method for high temperature heat pipe requiring small amount of alkali metal working medium |
| CN102248405A (en) * | 2011-06-16 | 2011-11-23 | 河海大学常州校区 | Automatic exhaust sealing-in device for solar superconducting heat pipe and method thereof |
| CN102248405B (en) * | 2011-06-16 | 2013-10-02 | 河海大学常州校区 | Automatic exhaust sealing-in device for solar superconducting heat pipe and method thereof |
| CN102506599B (en) * | 2011-12-27 | 2013-06-12 | 华南理工大学 | Micro heat pipe vacuuming and clamping device |
| CN102506599A (en) * | 2011-12-27 | 2012-06-20 | 华南理工大学 | Micro heat pipe vacuuming and clamping device |
| CN102494550A (en) * | 2011-12-29 | 2012-06-13 | 四川鋈新能源科技有限公司 | Temperature-equalizing plate and device and method for manufacturing temperature-equalizing plate |
| CN102785059A (en) * | 2012-06-26 | 2012-11-21 | 慈溪市宏迪纺织机械有限公司 | Process for manufacturing bolster of spinning machine |
| CN102785059B (en) * | 2012-06-26 | 2015-07-15 | 慈溪市宏迪纺织机械有限公司 | Process for manufacturing bolster of spinning machine |
| CN103105083A (en) * | 2013-02-28 | 2013-05-15 | 张波 | Solid-state quantitative infusion method of heat working media |
| EP3030374A4 (en) * | 2013-08-09 | 2017-04-19 | United Technologies Corporation | Method for integrating multiple materials in a foil consolidation of additive manufacturing process |
| CN103639707A (en) * | 2013-12-26 | 2014-03-19 | 烟台市三立工业有限公司 | Dedicated equipment for producing harmonica strip type heat energy board |
| CN104121795A (en) * | 2014-07-31 | 2014-10-29 | 海康创业(北京)科技有限公司 | Multi-welded-junction metal heat pipe and machining method thereof |
| CN104475967A (en) * | 2014-12-30 | 2015-04-01 | 东北大学 | Vacuum stirring friction welding device and manufacturing method of metal composite plate |
| CN104959727A (en) * | 2015-07-29 | 2015-10-07 | 江苏科技大学 | Composite sealing device for thin-wall aluminum alloy pipe ends and welding method thereof |
| CN104959727B (en) * | 2015-07-29 | 2017-09-12 | 江苏科技大学 | A kind of thin-wall aluminum alloy pipe end composite seal device and welding method |
| CN105351687A (en) * | 2015-11-23 | 2016-02-24 | 河南南阳市油田机械制造有限公司 | Heat isolation oil pipe vacuumizing sealing device |
| CN107470775A (en) * | 2017-09-26 | 2017-12-15 | 深圳市宝利通电子有限公司 | Copper aluminium friction welding apparatuses |
| GB2574377A (en) * | 2018-05-29 | 2019-12-11 | Acergy France SAS | Sealing hollow structures |
| GB2575719A (en) * | 2018-05-29 | 2020-01-22 | Acergy France SAS | Sealing hollow structures |
| GB2575719B (en) * | 2018-05-29 | 2020-10-07 | Acergy France SAS | Sealing hollow structures |
| US11819938B2 (en) | 2018-05-29 | 2023-11-21 | Acergy France SAS | Sealing hollow structures |
| CN112665442A (en) * | 2020-12-23 | 2021-04-16 | 无锡卡兰尼普热管理技术有限公司 | Sealing structure and sealing method applied to aluminothermic circuit board |
| CN114871538A (en) * | 2022-06-20 | 2022-08-09 | 上海亘满科技有限公司 | Magnesium ammonia heat pipe welding method |
| CN114871538B (en) * | 2022-06-20 | 2024-01-30 | 上海亘满科技有限公司 | Method for welding magnesium ammonia heat pipe |
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