CN112775621A - Heat sealing process for vacuum superconducting tube - Google Patents
Heat sealing process for vacuum superconducting tube Download PDFInfo
- Publication number
- CN112775621A CN112775621A CN202011518207.XA CN202011518207A CN112775621A CN 112775621 A CN112775621 A CN 112775621A CN 202011518207 A CN202011518207 A CN 202011518207A CN 112775621 A CN112775621 A CN 112775621A
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- China
- Prior art keywords
- open end
- heat
- sealing
- metal tube
- sealing process
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 title claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000005219 brazing Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000010894 electron beam technology Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to the technical field of superconducting pipes, and discloses a heat sealing process of a vacuum superconducting pipe, which comprises the following steps: a. providing a metal tube, wherein one end of the metal tube body is provided with a closed end, the other end of the metal tube body is provided with an open end, and superconducting liquid is arranged in the metal tube; b. providing a brazing device, wherein the brazing device is provided with two dies; c. placing the open end of the metal pipe between two dies, extruding the open end and moving the open end in the direction away from the metal pipe body, so that the open end is pressed and extended to form a pressed extension column and seal the channel; d. and performing spot welding sealing operation on the pressing extension column to enable the tail end of the pressing extension column to form a closed end. The process can improve the pressure distribution of the superconducting pipe on the sealing and pressing processing surface, and can avoid the structural damage such as the reduction of the extensibility of the sealing part of the superconducting pipe, stress concentration and the like caused by over processing.
Description
Technical Field
The invention relates to the technical field of superconducting pipes, in particular to a heat sealing process of a vacuum superconducting pipe.
Background
The superconductive tube is based on the principle of combining high-efficiency heat transfer technology with light gathering technology, and is mainly composed of a transparent glass tube with an opening at one end, a heat absorption assembly arranged in the transparent glass tube and a sealing end cover, wherein one end of the heat absorption assembly penetrates through the sealing end cover to extend out of the transparent glass tube, the transparent glass tube is in a vacuum state, the heat conduction efficiency of the superconductive tube is far higher than that of other heat transfer modes, the superconductive tube can quickly conduct absorbed solar heat energy into water, the heat energy is released out to supply water for absorption and temperature rise, and the heat transfer mode is one-way conduction, so the superconductive tube is widely used.
Generally, the conventional superconducting tube sealing pressing method, or the mallet type necking method, or the direct pressing method, all of which cause stress concentration and ductility reduction at the tube sealing part, and during the continuous bending and flattening process, cracks or deepening structural damage easily occur at the sealing part, greatly reducing the service life of the thermal tube.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a heat sealing process of a vacuum superconducting tube, which can increase the sealing pressing strength, improve the pressure distribution of the superconducting tube on the sealing pressing processing surface, avoid the structural damage such as the reduction of the extensibility and the stress concentration of the sealing part of the heat conducting tube caused by over processing, and can actually increase the sealing strength of the sealing and reduce the structural damage caused by processing.
In order to achieve the purpose of convenient use, the invention provides the following technical scheme:
a heat sealing process of a vacuum superconducting tube comprises the following steps:
a. providing a metal tube, wherein one end of the metal tube body is provided with a closed end, the other end of the metal tube body is provided with an open end, and superconducting liquid is arranged in the metal tube;
b. providing a brazing device, wherein the brazing device is provided with two dies;
c. placing the open end of the metal pipe between two dies, extruding the open end and moving the open end in the direction away from the metal pipe body, so that the open end is pressed and extended to form a pressed extension column and close the channel;
d. and performing spot welding sealing operation on the pressing extension column to enable the tail end of the pressing extension column to form a closed end.
Preferably, an extrusion groove is provided between each of the dies.
Preferably, the pressing groove is an arc groove, so that the pressure maintaining extending column is a circular column.
Preferably, the steps a and b can be used as a final sealing process of the heat pipe to achieve airtightness at the opening; or, the step a and the step b can be used as an intermediate process of the heat pipe, and the welding and fusing processes are executed after the opening is sealed, so that the sealing structure can meet the strength requirement of the subsequent bending and flattening pipe body deformation process.
Preferably, the spot welding sealing operation in step d is to perform an electron beam welding method, an argon arc welding method or a laser welding method on the end of the pressed extending column.
Preferably, the method comprises the step of filling the metal tube with the working fluid and the step of evacuating the metal tube in sequence before the step b.
Compared with the prior art, the invention has the following beneficial effects: the sealing structure can effectively improve various defects of the prior method, the prior mould and the sealing structure, can increase the sealing pressing strength, improve the pressure distribution of the heat pipe on the sealing pressing processing surface, can avoid the structure damage of reducing the ductility and stress concentration of the sealing part of the heat pipe caused by over processing, and can really increase the sealing bonding strength and reduce the structure damage caused by processing.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the 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 embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A heat sealing process of a vacuum superconducting tube comprises the following steps:
a. providing a metal tube, wherein one end of the metal tube body is provided with a closed end, the other end of the metal tube body is provided with an open end, and superconducting liquid is arranged in the metal tube;
b. providing a brazing device, wherein the brazing device is provided with two dies;
c. placing the open end of the metal pipe between two dies, extruding the open end and moving the open end in the direction away from the metal pipe body, so that the open end is pressed and extended to form a pressed extension column and close the channel;
d. and performing spot welding sealing operation on the pressing extension column to enable the tail end of the pressing extension column to form a closed end.
Preferably, an extrusion groove is provided between each of the dies.
Preferably, the pressing groove is an arc groove, so that the pressure maintaining extending column is a circular column.
Preferably, the steps a and b can be used as a final sealing process of the heat pipe to achieve airtightness at the opening; or, the step a and the step b can be used as an intermediate process of the heat pipe, and the welding and fusing processes are executed after the opening is sealed, so that the sealing structure can meet the strength requirement of the subsequent bending and flattening pipe body deformation process.
Preferably, the spot welding sealing operation in step d is to perform an electron beam welding method, an argon arc welding method or a laser welding method on the end of the pressed extending column.
Preferably, the method comprises the step of filling the metal tube with the working fluid and the step of evacuating the metal tube in sequence before the step b.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A heat sealing process of a vacuum superconducting tube is characterized by comprising the following steps:
a. providing a metal tube, wherein one end of the metal tube body is provided with a closed end, the other end of the metal tube body is provided with an open end, and superconducting liquid is arranged in the metal tube;
b. providing a brazing device, wherein the brazing device is provided with two dies;
c. placing the open end of the metal pipe between two dies, extruding the open end and moving the open end in the direction away from the metal pipe body, so that the open end is pressed and extended to form a pressed extension column and seal the channel;
d. and performing spot welding sealing operation on the pressing extension column to enable the tail end of the pressing extension column to form a closed end.
2. A heat-sealing process for a vacuum superconducting tube according to claim 1, wherein an extrusion groove is provided between each of the molds.
3. A heat-sealing process for a vacuum superconducting tube according to claim 2, wherein the pressing groove is a circular groove, and the pressure-maintaining extended column is a circular column.
4. A heat sealing process for a vacuum superconducting tube according to claim 1, wherein the steps a and b are performed as a final sealing process for the heat pipe to achieve airtightness at the opening; or, the step a and the step b can be used as an intermediate process of the heat pipe, and the welding and fusing processes are executed after the opening is sealed, so that the sealing structure can meet the strength requirement of the subsequent bending and flattening pipe body deformation process.
5. A heat-sealing process for a vacuum superconducting tube as claimed in claim 1, wherein the spot welding sealing operation in step d is an electron beam welding method, an argon arc welding method or a laser welding method for the end of the laminated extending column.
6. A heat-sealing process for a vacuum superconducting tube according to claim 1, comprising the steps of filling the metal tube with the working fluid and evacuating the metal tube in this order before step b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011518207.XA CN112775621A (en) | 2020-12-21 | 2020-12-21 | Heat sealing process for vacuum superconducting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011518207.XA CN112775621A (en) | 2020-12-21 | 2020-12-21 | Heat sealing process for vacuum superconducting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112775621A true CN112775621A (en) | 2021-05-11 |
Family
ID=75751593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011518207.XA Pending CN112775621A (en) | 2020-12-21 | 2020-12-21 | Heat sealing process for vacuum superconducting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112775621A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6308399B1 (en) * | 1991-06-18 | 2001-10-30 | Dawei Zhou | High-TC superconducting ceramic oxide products and macroscopic and microscopic methods of making the same |
| TW571863U (en) * | 2003-03-10 | 2004-01-11 | Jiun-Fu Liou | Improved sealing structure for super-conductive heat tube |
| JP2005071777A (en) * | 2003-08-25 | 2005-03-17 | Hitachi Cable Ltd | Sealing structure and method for oxide superconducting wire |
| CN101382397A (en) * | 2008-10-24 | 2009-03-11 | 中南大学 | Method for making quartz superconducting tube |
| CN101614417A (en) * | 2009-07-24 | 2009-12-30 | 宋志军 | The method for packing of vacuum superconducting radiator |
| CN202109691U (en) * | 2010-08-30 | 2012-01-11 | 严洪 | Split solar heat collecting vacuum tube of glass heat tube |
| CN206177111U (en) * | 2016-10-28 | 2017-05-17 | 昆山巨仲电子有限公司 | Heat pipe sealing end of intensive heat conduction efficiency of utensil |
| CN107655356A (en) * | 2016-07-25 | 2018-02-02 | 昆山巨仲电子有限公司 | Heat pipe and its mouth-sealing method |
| CN109708500A (en) * | 2018-11-20 | 2019-05-03 | 苏州天脉导热科技股份有限公司 | Ultrathin heat pipe and its port sealing technique |
-
2020
- 2020-12-21 CN CN202011518207.XA patent/CN112775621A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6308399B1 (en) * | 1991-06-18 | 2001-10-30 | Dawei Zhou | High-TC superconducting ceramic oxide products and macroscopic and microscopic methods of making the same |
| TW571863U (en) * | 2003-03-10 | 2004-01-11 | Jiun-Fu Liou | Improved sealing structure for super-conductive heat tube |
| JP2005071777A (en) * | 2003-08-25 | 2005-03-17 | Hitachi Cable Ltd | Sealing structure and method for oxide superconducting wire |
| CN101382397A (en) * | 2008-10-24 | 2009-03-11 | 中南大学 | Method for making quartz superconducting tube |
| CN101614417A (en) * | 2009-07-24 | 2009-12-30 | 宋志军 | The method for packing of vacuum superconducting radiator |
| CN202109691U (en) * | 2010-08-30 | 2012-01-11 | 严洪 | Split solar heat collecting vacuum tube of glass heat tube |
| CN107655356A (en) * | 2016-07-25 | 2018-02-02 | 昆山巨仲电子有限公司 | Heat pipe and its mouth-sealing method |
| CN206177111U (en) * | 2016-10-28 | 2017-05-17 | 昆山巨仲电子有限公司 | Heat pipe sealing end of intensive heat conduction efficiency of utensil |
| CN109708500A (en) * | 2018-11-20 | 2019-05-03 | 苏州天脉导热科技股份有限公司 | Ultrathin heat pipe and its port sealing technique |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210511 |
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| RJ01 | Rejection of invention patent application after publication |