CN108444150A - A kind of compound hollow out protective shield of radiation - Google Patents
A kind of compound hollow out protective shield of radiation Download PDFInfo
- Publication number
- CN108444150A CN108444150A CN201810426727.4A CN201810426727A CN108444150A CN 108444150 A CN108444150 A CN 108444150A CN 201810426727 A CN201810426727 A CN 201810426727A CN 108444150 A CN108444150 A CN 108444150A
- Authority
- CN
- China
- Prior art keywords
- radiation
- protective shield
- hollow out
- flange
- engraved structure
- Prior art date
- 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
- 230000005855 radiation Effects 0.000 title claims abstract description 115
- 230000001681 protective effect Effects 0.000 title claims abstract description 100
- 150000001875 compounds Chemical class 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 11
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 10
- 238000005498 polishing Methods 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 239000011651 chromium Substances 0.000 claims description 9
- 239000007769 metal material Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 4
- -1 gold-plated Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 3
- 230000003471 anti-radiation Effects 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 46
- 239000002356 single layer Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000037396 body weight Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
-
- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B17/00—Screening
- G12B17/06—Screening from heat
Abstract
The present invention relates to a kind of compound hollow out protective shield of radiations comprising:Flange;Outer layer protective shield of radiation and internal layer protective shield of radiation, the outer layer protective shield of radiation and internal layer protective shield of radiation and the flanged joint, the first engraved structure is distributed on the outer layer protective shield of radiation;The second engraved structure is distributed with thereon in the internal layer protective shield of radiation.Compound hollow out protective shield of radiation itself heavy burden of the present invention is small, using engraved structure and domed bottom structure, can reduce protective shield of radiation itself heavy burden, radiation heat transfer is greatly reduced;And there are simplified vacuum enclosed structure, space-saving advantage.
Description
Technical field
The present invention relates to a kind of protective shield of radiations, more particularly to a kind of compound hollow out protective shield of radiation.
Background technology
Thermostat, especially cryostat have good thermal insulation with external environment, are widely used in sample machine
The various low-temperature characteristics fields of measurement such as tool characteristic, superconducting characteristic and the fields such as research equipment device development and national defense safety.It is permanent
The leakage heat of warm device mainly has three ways, such as conduction, convection current and radiation, to maintain high steady isoperibol, needs to take different arrange
Impose reduction leakage heat:The heat insulating constructions such as generally use thermal insulation sunpender or filament reduce conductive heat leakage;By maintaining system Gao Zhen
Reciprocal of duty cycle (vacuum system takes working media such as air in cavity away) is hot to reduce convection current leakage;Between room temperature surface and low-temperature surface
Protective shield of radiation is added to reduce heat radiation.
Leakage heat is radiated to reduce, emissivity can be reduced by the methods of metal material surface polishing, gold-plated, chromium plating;In addition,
Protective shield of radiation can be added between low-temperature surface and high temperature surface, play heat-insulated effect.Protective shield of radiation is that cryostat is outstanding
It is with refrigeration machine (such as GM refrigeration machines, pulse tube refrigerating machine, dilution refrigeration machine) be low-temperature receiver cryogenic system in must can not
One of few critical component, single-layer or multi-layer solid construction made of the materials such as generally use stainless steel, red copper exist from bearing
Great, the shortcomings of radiation-proof effect is poor, it is difficult to have the special occasions strictly limited to weight applied to some.
Invention content
The present invention is directed to the deficiency of above-mentioned protective shield of radiation, it is proposed that a kind of structure of compound hollow out is to realize thermostat especially
It is to leak the efficient inhibition of heat by the radiation of the cryostat of low-temperature receiver of refrigeration machine, and can meet to the conditional special applications of weight
Occasion.
Present invention aim to address traditional protective shield of radiation itself heavy burden big, vacuum structure complexity, radiation-proof effect differences etc.
Problem, it is proposed that a kind of compound hollow out protective shield of radiation has the advantages that light, simple, it can be achieved that efficient radiation-proof effect.
The present invention provides a kind of compound hollow out protective shield of radiations comprising:Flange;Outer layer protective shield of radiation and internal layer radiation protection
Screen, the outer layer protective shield of radiation and internal layer protective shield of radiation and the flanged joint are distributed with the on the outer layer protective shield of radiation
One engraved structure;The second engraved structure is distributed with thereon in the internal layer protective shield of radiation.
Wherein, to flange surface polishing, the low-launch-rates metal such as gold-plated, chromium on the surface of the flange of polishing
Coating.
Wherein, at least one layer of middle layer protective shield of radiation is set between the outer layer protective shield of radiation and internal layer protective shield of radiation,
Wherein, first engraved structure and the second engraved structure are the other shapes such as round or rectangular.
Wherein, the symmetrical structures such as symmetrical or axial symmetry distribution centered on first engraved structure and the second engraved structure.
Wherein, the protective shield of radiation material is selected from the low density-metal materials such as aluminium, aluminium alloy, titanium alloy or low-density is non-
Metal material.
Wherein, flange uses the welding forms such as silver soldering, special welding with protective shield of radiation.
Wherein, the flange is hollow-core construction.
Wherein, the hollow-out part of first engraved structure and the second engraved structure is wound with adiabatic aluminum foil and adhesive tape with holes.
Wherein, the flange material is selected from low density-metal materials or the low density non-metallics such as aluminium, aluminium alloy, titanium alloy
Material.
Compound hollow out protective shield of radiation itself heavy burden of the present invention is small, using engraved structure and domed bottom structure, can drop
Low protective shield of radiation itself bears a heavy burden, in addition, by using the metal or nonmetallic materials of low-density, further decreases protective shield of radiation certainly
Body weight;And radiation leakage heat is small, using low-launch-rates coat of metal such as compound engraved structure and surface polishing, gold-plated, chromium etc.
Radiation heat transfer is greatly reduced in method;And there are simplified vacuum enclosed structure, space-saving advantage.
Description of the drawings
Fig. 1 is the compound hollow out protective shield of radiation schematic diagram of the present invention.
Specific implementation mode
To facilitate the understanding of the present invention, the embodiment of the present invention is illustrated below in conjunction with the accompanying drawings, people in the art
Member should be appreciated that following explanations only to facilitate being explained to invention, and not as the specific restriction to its range.
Fig. 1 is the compound hollow out protective shield of radiation schematic diagram of the present invention.Wherein, which includes:Flange
1, outer layer protective shield of radiation 2, middle layer protective shield of radiation 3, internal layer protective shield of radiation 4, outer layer engraved structure 5, internal layer engraved structure 6.
In case study on implementation as shown in Figure 1, flange 1 is anti-with outer layer protective shield of radiation 2, middle layer protective shield of radiation 3 and internal layer
Radiation shield 4 is connected, and the various ways such as the welding forms such as silver soldering, special welding or screw-thread fit or male-female engagement can be used and connected
It connects, adiabatic sunpender can also be used or filament is attached.
To the polishing of 1 surface of the flange, the low-launch-rates metal-plated such as gold-plated, chromium on the surface of the flange of polishing
Layer, the metal layer thickness are 1 μm~500 μm;Solid construction can be used in the flange 1, and hollow-core construction can also be used, and passes through
Hollow-core construction can effectively mitigate heavy burden, and the thickness of the flange 1 is within the scope of 0.5mm~100mm;According to actual demand flange 1
On can arrange that different connectivity structures, preferably intercommunicating pore, the through-hole are not connected to hollow-core construction, avoid hollow-core construction to even
The influence of logical structure.
In case study on implementation as shown in Figure 1, the compound hollow out protective shield of radiation is by inside to outside, the preferably anti-spoke of internal layer
Penetrate three layers of protective shield of radiation structure of screen 4, middle layer protective shield of radiation 3 and outer layer protective shield of radiation 2, the structure shape of three layers of protective shield of radiation
Shape is consistent, as a further preference, the knot of the structure of the intermediate radiation protective screen 3 and the inside and outside layer radiation protective layer
Structure simultaneously differs.
The first engraved structure 5 is distributed on the outer layer protective shield of radiation 2;It is distributed thereon in the internal layer protective shield of radiation 4
There is the second engraved structure 6;Third engraved structure (not shown) can also be distributed on the internal layer protective shield of radiation 3.It is preferred that institute
Different materials can be selected according to system actual demand for the material for stating three layers of protective shield of radiation 2,3,4, have particular/special requirement for weight
Occasion, the preferably low density-metal materials such as aluminium, aluminium alloy, titanium alloy or nonmetallic materials;For weight without particular/special requirement
The metals such as occasion, preferably red copper, aluminium, aluminium alloy, titanium alloy, stainless steel;As advanced optimizing, each single layer protective shield of radiation can be adopted
With different materials.
As a further alternative, compound hollow out protective shield of radiation of the invention can only include two layers of protective shield of radiation, that is, omit
Intermediate radiation protective screen 3 is removed, includes only internal layer protective shield of radiation 4 and outer layer protective shield of radiation 2;It is described multiple as with further selecting
It closes hollow out protective shield of radiation and is alternatively multilayered structure, multiple intermediate radiation protective screens are set, and total number of plies of usual protective shield of radiation is preferably 2
Layer~20 layers;Certainly, according to specific needs, the hollow out radiation shield of single layer can also be only set.
It is preferably 0.1mm~10mm for single layer protective shield of radiation thickness, adjacent two layers single screen spacing is 0.1~10 times of single layer
The thickness of protective shield of radiation;Protective shield of radiation surface can be polished or carry out after a polish the low-launch-rates metal-plated such as gold-plated, chromium
Layer, thickness of coating are 1 μm~500 μm.
In case study on implementation as shown in Figure 1, the shape of the first engraved structure 5 and the second engraved structure 6 is round or rectangular
Etc. other shapes, equivalent diameter be 1mm~500mm, which can not only reduce itself and bear a heavy burden, but also multiple single layers be prevented
The confined space that radiation shield is constituted with flange 1 is connected, and is connected with the vacuum system outside compound protective shield of radiation, simplifies vacuum
Enclosed structure has saved space.Engraved structure the first engraved structure 5 and the second engraved structure 6 on single layer protective shield of radiation are preferably
Centered on the symmetrical structures distribution such as symmetrical or axial symmetry, other distribution modes can also be used;In adjacent two layers protective shield of radiation
Engraved structure mutually staggers, and the projection on a protective shield of radiation does not overlap each other, and as shown in fig. 1, dashed circle indicates
First engraved structure 5, solid line circle indicate that the second engraved structure 6, first engraved structure, 5 and second engraved structure 6 use
Disconnected engraved structure.
As advanced optimizing, each single layer protective shield of radiation can be used different hollow out shapes according to actual design demand and divide
Cloth structure, but adjacent two layers screen must use disconnected engraved structure, i.e., and adjacent protective shield of radiation is on a protective shield of radiation
The projection non-overlapping copies of all engraved structures in projection.Hemispherical or elliposoidal structure are used in the bottom of the protective shield of radiation,
Space is not only saved, heavy burden can be also mitigated;The hollow-out part of compound hollow out protective shield of radiation inner and outer surfaces can use adiabatic aluminium foil with holes
Adhesive tape is wound, and further decreases radiation leakage heat.Based on above-mentioned compound engraved structure and design, it can be achieved that light, simple, efficient
Radiation-proof effect.
It is the other shapes such as round or rectangular, equivalent diameter that the protective shield of radiation of the present invention, which uses engraved structure, hollow out shape,
For 1mm~500mm;Hollow out preferred center is symmetrical on single layer screen or the symmetrical structures distribution such as axial symmetry, can also use other points
Mode for cloth;Bottom uses hemispherical or elliposoidal structure.Different hollow out shapes can be used according to actual design demand for each single layer
And distributed architecture, adjacent two layers screen use disconnected engraved structure.The hollow-out part of protective shield of radiation inner and outer surfaces can be with holes
Adiabatic aluminum foil and adhesive tape winding.
The preferred aluminium of protective shield of radiation material of the present invention, aluminium alloy, low density metals or the nonmetallic materials (weight such as titanium alloy
There is the occasion of particular/special requirement);It is preferred that the metals such as red copper, aluminium, aluminium alloy, titanium alloy, stainless steel (field of the weight without particular/special requirement
It closes).Different materials can be used according to actual design demand for each single layer.Surface polishing or throwing when protective shield of radiation material is metal
The low-launch-rates coat of metal such as gold-plated after light, chromium.
The protective shield of radiation of the present invention is using at least two layers of multilayered structure (2 layers~20 layers).Protective shield of radiation thickness in monolayer is
0.1mm~10mm is highly 10mm~5000mm, and adjacent two layers screen spacing is 0.1~10 times of single layer screen thickness, internal layer radiation protection
Shield a diameter of 10mm~4000mm.
Flange is with protective shield of radiation using a variety of sides such as welding forms or screw-thread fit or male-female engagement such as silver soldering, special weldings
Formula is attached, and adiabatic sunpender can also be used or filament is attached.
(weight has the field of particular/special requirement for the low density metals such as the preferred aluminium alloy of flange material, titanium alloy or nonmetallic materials
It closes);It is preferred that the metals such as red copper, aluminium, aluminium alloy, titanium alloy, stainless steel (occasion of the weight without particular/special requirement).
Flange surface polishes or the low-launch-rates coats of metal such as gold-plated, chromium, and thickness of coating is 1 μm~500 μm.Flange can
Using solid construction, hollow-core construction can also be used.
Compound hollow out protective shield of radiation itself heavy burden of the present invention is small, using engraved structure and domed bottom structure, can drop
Low protective shield of radiation itself bears a heavy burden, in addition, by using the metal or nonmetallic materials of low-density, further decreases protective shield of radiation certainly
Body weight;And radiation leakage heat is small, using low-launch-rates coat of metal such as compound engraved structure and surface polishing, gold-plated, chromium etc.
Radiation heat transfer is greatly reduced in method;And there are simplified vacuum enclosed structure, space-saving advantage.
It is understood that although the present invention has been disclosed in the preferred embodiments as above, above-described embodiment not to
Limit the present invention.For any person skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible changes and modifications all are made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of variation.Therefore, every content without departing from technical solution of the present invention is right according to the technical essence of the invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments still fall within the range of technical solution of the present invention protection
It is interior.
Claims (10)
1. a kind of compound hollow out protective shield of radiation comprising:Flange;Outer layer protective shield of radiation and internal layer protective shield of radiation, the outer layer are anti-
Radiation shield and internal layer protective shield of radiation and the flanged joint, it is characterised in that:It is distributed with first on the outer layer protective shield of radiation
Engraved structure;The second engraved structure is distributed with thereon in the internal layer protective shield of radiation.
2. compound hollow out protective shield of radiation as described in claim 1, it is characterised in that:To flange surface polishing, in polishing
The low-launch-rates coat of metal such as gold-plated, chromium on the surface of the flange.
3. compound hollow out protective shield of radiation as described in claim 1, it is characterised in that:In the outer layer protective shield of radiation and the anti-spoke of internal layer
It penetrates between shielding and at least one layer of middle layer protective shield of radiation is set.
4. compound hollow out protective shield of radiation as described in claim 1, it is characterised in that:First engraved structure and the second hollow out knot
Structure is the other shapes such as round or rectangular.
5. compound hollow out protective shield of radiation as described in claim 1, it is characterised in that:First engraved structure and the second hollow out knot
The symmetrical structures such as symmetrical or axial symmetry distribution centered on structure.
6. compound hollow out protective shield of radiation as described in claim 1, it is characterised in that:The protective shield of radiation material is selected from aluminium, aluminium closes
The low density-metal materials such as gold, titanium alloy or low density non-metallic material.
7. compound hollow out protective shield of radiation as described in claim 1, it is characterised in that:Flange is with protective shield of radiation using silver soldering, special type
The welding forms such as welding.
8. compound hollow out protective shield of radiation as described in claim 1, it is characterised in that:The flange is hollow-core construction.
9. compound hollow out protective shield of radiation as described in claim 1, it is characterised in that:First engraved structure and the second hollow out knot
The hollow-out part of structure is wound with adiabatic aluminum foil and adhesive tape with holes.
10. compound hollow out protective shield of radiation as described in claim 1, it is characterised in that:The flange material be selected from aluminium, aluminium alloy,
The low density-metal materials such as titanium alloy or low density non-metallic material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810426727.4A CN108444150A (en) | 2018-05-07 | 2018-05-07 | A kind of compound hollow out protective shield of radiation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810426727.4A CN108444150A (en) | 2018-05-07 | 2018-05-07 | A kind of compound hollow out protective shield of radiation |
Publications (1)
Publication Number | Publication Date |
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CN108444150A true CN108444150A (en) | 2018-08-24 |
Family
ID=63202436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810426727.4A Pending CN108444150A (en) | 2018-05-07 | 2018-05-07 | A kind of compound hollow out protective shield of radiation |
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CN (1) | CN108444150A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114649129A (en) * | 2020-12-17 | 2022-06-21 | 中国航天科工飞航技术研究院(中国航天海鹰机电技术研究院) | Superconducting magnet |
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DE2720118A1 (en) * | 1975-03-06 | 1978-11-16 | Hans Heinrich Prof Emschermann | Vessel for protecting measuring instrument against high temps. - has thermal resistance increased by intensified utilisation of steam |
CN2046580U (en) * | 1989-03-23 | 1989-10-25 | 浙江大学 | Multi-layer heat-insulating structure with gaps |
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CN202888114U (en) * | 2012-09-14 | 2013-04-17 | 安徽华东光电技术研究所 | Multilayer insulating heat shield structure |
CN208139628U (en) * | 2018-05-07 | 2018-11-23 | 中国科学院理化技术研究所 | A kind of compound hollow out protective shield of radiation |
-
2018
- 2018-05-07 CN CN201810426727.4A patent/CN108444150A/en active Pending
Patent Citations (7)
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---|---|---|---|---|
DE2720118A1 (en) * | 1975-03-06 | 1978-11-16 | Hans Heinrich Prof Emschermann | Vessel for protecting measuring instrument against high temps. - has thermal resistance increased by intensified utilisation of steam |
CN2046580U (en) * | 1989-03-23 | 1989-10-25 | 浙江大学 | Multi-layer heat-insulating structure with gaps |
CN2680458Y (en) * | 2003-06-18 | 2005-02-23 | 中国科学院理化技术研究所 | Solar heat radiation releasing cloth for heatstroke prevention clothes |
US20050042416A1 (en) * | 2003-08-21 | 2005-02-24 | Blackmon James B. | Insulation system having vacuum encased honeycomb offset panels |
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Title |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114649129A (en) * | 2020-12-17 | 2022-06-21 | 中国航天科工飞航技术研究院(中国航天海鹰机电技术研究院) | Superconducting magnet |
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