CN112129517A - Microsphere material for detecting fastening condition of aircraft external accessory - Google Patents
Microsphere material for detecting fastening condition of aircraft external accessory Download PDFInfo
- Publication number
- CN112129517A CN112129517A CN202011326298.7A CN202011326298A CN112129517A CN 112129517 A CN112129517 A CN 112129517A CN 202011326298 A CN202011326298 A CN 202011326298A CN 112129517 A CN112129517 A CN 112129517A
- Authority
- CN
- China
- Prior art keywords
- microspheres
- sodium hydroxide
- microsphere
- foaming
- accessory
- 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.)
- Granted
Links
- 239000004005 microsphere Substances 0.000 title claims abstract description 72
- 239000000463 material Substances 0.000 title claims abstract description 17
- 238000005187 foaming Methods 0.000 claims abstract description 32
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 78
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 14
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 claims description 10
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 10
- 229940041616 menthol Drugs 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- PGISRKZDCUNMRX-UHFFFAOYSA-N 1,1,1,2,2,3,3,4,4-nonafluoro-4-(trifluoromethoxy)butane Chemical group FC(F)(F)OC(F)(F)C(F)(F)C(F)(F)C(F)(F)F PGISRKZDCUNMRX-UHFFFAOYSA-N 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 6
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 6
- 238000001931 thermography Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000003981 vehicle Substances 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- OKIYQFLILPKULA-UHFFFAOYSA-N 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane Chemical group COC(F)(F)C(F)(F)C(F)(F)C(F)(F)F OKIYQFLILPKULA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/44—Preparation in the form of granules, pieces, or other shaped products
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
Abstract
The invention belongs to the field of airplane detection, and particularly relates to a novel foaming and heating microsphere material. When the microsphere material provided by the invention is adopted for detection, detection personnel do not need to go to each accessory to manually detect the accessory, only need to move around the periphery of the airplane, use the launching device to launch the microsphere material to the upper part of the accessory to be detected, and simultaneously cooperate with a thermal imager, so that the fastening condition of the airplane accessory can be quickly and accurately detected. The adopted microspheres are nontoxic and harmless after foaming, are environment-friendly, can be cleaned up along with rain washing, and do not need subsequent treatment.
Description
Technical Field
The invention belongs to the field of airplane detection, and particularly relates to a novel foaming and heating microsphere material.
Background
Before the airplane takes off, the fastening condition of external accessories needs to be detected, for example, whether a fixing screw on the outer part of the static pressure pipe is loosened or not, whether a bolt nut of a terminal electric door at the retraction position and the lowering position of the main landing gear is loosened or not, and the like.
In the prior art, the fastening condition of the accessories is mainly inspected by visual inspection and matching with the touch of human hands, the external accessories are distributed at each position of the airplane and are loosely distributed in space, and the airplane is large in size, so that inspectors usually need to use a lifting vehicle and consume a large amount of time at the same time, and the inspection can be realized before each part to be inspected is reached.
Although the prior art people try to detect each accessory by using the unmanned aerial vehicle technology, due to the limitation of shooting angle and definition, the camera device on the unmanned aerial vehicle often cannot accurately monitor whether the accessory is fastened with the machine body or not without a gap.
Therefore, aiming at the problem that the fastening condition of the external accessory of the airplane is long in detection time in the prior art, the invention provides a novel foaming microsphere material which can be matched with a thermal imager to quickly and accurately detect the fastening condition of the external accessory of the airplane.
Disclosure of Invention
The invention aims to overcome the defect that the fastening condition of an aircraft external part is checked for a long time in the prior art, and further provides a foaming microsphere capable of assisting inspectors in quickly detecting the fastening condition of an aircraft external accessory.
The above purpose of the invention is realized by the following technical scheme:
the invention provides a microsphere material for detecting fastening conditions of external accessories of an airplane, which comprises foaming microspheres and starting liquid, wherein the foaming microspheres and the starting liquid are stored separately and are not contacted with each other when being stored; the foaming microsphere comprises a microsphere inner core and a microsphere shell; the inner core of the microsphere is volatile ether, and the spherical shell is sodium hydroxide; the starting liquid is a surfactant aqueous solution capable of dissolving sodium hydroxide.
Optionally, the volatile ether is perfluorobutyl methyl ether or diethyl ether.
The invention also provides a preparation method of the foaming microsphere, which comprises the following steps,
s1, preparing sodium hydroxide hollow microspheres with micropores to obtain spherical shells;
s2, impregnating the spherical shell with liquid volatile ether so that the volatile ether is loaded in the spherical shell;
s3, filtering out the liquid volatile ether which is not loaded to obtain the foaming microspheres, and storing the foaming microspheres in a closed environment at the temperature of lower than 4 ℃.
Optionally, in step S1, the sodium hydroxide hollow microspheres are prepared by a template method.
Optionally, when the template method is used for preparation, firstly, the composite microsphere with the menthol particles as the inner core and the sodium hydroxide as the outer shell is prepared, then the composite microsphere is placed at the temperature of 218-220 ℃ for heat preservation for 7-8h, and the menthol is removed, so that the sodium hydroxide hollow microsphere with the micropores is obtained.
The microsphere material provided by the invention is used in the following method. Firstly, the foaming microsphere is contacted with a starting liquid, at the moment, the sodium hydroxide on the spherical shell is dissolved, the originally solid spherical shell is changed into a sodium hydroxide solution layer, heat is generated, the volatile ether serving as the microsphere core is heated and volatilized, and the volatile ether and the surfactant aqueous solution on the outer layer act together to foam and generate heat. In practical application, the foaming microspheres can be transmitted to the upper part of an accessory to be tested of an airplane (the accessory is not touched during contact) by adopting an transmitting device through a surfactant aqueous solution, and a liquid mass collides with the airplane body, so that the content of the microspheres is uniformly mixed with an external liquid layer and is dispersed along the surface of the airplane body, and the foaming and the heating are carried out simultaneously.
When the annex was not fastened enough, this mixture infiltration gap promptly to along with the foaming, with the annex bottom contact of gap department, transfer heat to the annex bottom simultaneously, because the external annex is the metal material, be heated fast, at this moment, with the help of the thermal imaging appearance, can detect the surperficial projection position temperature's that corresponds bottom the annex rise. When the accessory is sufficiently tightened, the foam simply flows around the accessory, with a heat conduction direction and position different from that of the base of the accessory, and with a thermal imager, an increase in the temperature of the accessory periphery is detected, without a change in temperature of the base.
The technical scheme of the invention has the following beneficial effects:
when the material detection device is adopted for detecting the material, detection personnel do not need to go to each accessory to manually detect the accessory, only need to move around the periphery of the airplane, use the launching device to launch the material to the upper part of the accessory to be detected, and simultaneously cooperate with the thermal imager, so that the fastening condition of the accessory of the airplane can be quickly and accurately detected.
The materials adopted are nontoxic and harmless after foaming, are green and environment-friendly, and can be cleaned up along with the washing of rainwater without subsequent treatment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. 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. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a microsphere material for detecting fastening conditions of external accessories of an airplane, which comprises foaming microspheres consisting of sodium hydroxide shells wrapping diethyl ether cores and starting liquid consisting of sodium dodecyl sulfate aqueous solution.
The preparation method of the expanded microsphere provided in this embodiment is as follows:
s1, preparing the composite microsphere with menthol as an inner core and sodium hydroxide as an outer shell.
The specific method comprises the following steps:
(1) obtaining 30g of menthol particles with a particle size of 100 meshes;
(2) preparing 50ml of 48wt% sodium hydroxide aqueous solution;
(3) putting menthol particles into a sodium hydroxide aqueous solution, stirring and filtering;
(4) stirring and drying the filter cake obtained by filtering to obtain composite microspheres;
(5) putting the composite microspheres in a vacuum oven, and drying for 8 hours at 220 ℃ to obtain sodium hydroxide hollow microspheres;
s2, soaking the hollow microspheres in 200ml of diethyl ether for 10 min;
s3, filtering and taking out to obtain the foaming microspheres, and storing the foaming microspheres in a closed environment with the temperature not higher than 4 ℃.
Example 2
The embodiment provides a microsphere material for detecting fastening conditions of aircraft external accessories, which comprises foaming microspheres consisting of sodium hydroxide shells wrapping perfluorobutyl methyl ether cores and starting liquid consisting of sodium dodecyl sulfate aqueous solution.
The preparation method of the expanded microsphere provided in this embodiment is as follows:
s1, preparing the composite microsphere with menthol as an inner core and sodium hydroxide as an outer shell.
The specific method comprises the following steps:
(1) obtaining 15g of menthol particles with a particle size of 80 mesh;
(2) preparing 35ml of 40wt% sodium hydroxide aqueous solution;
(3) putting menthol particles into a sodium hydroxide aqueous solution, stirring and filtering;
(4) stirring and drying the filter cake obtained by filtering to obtain composite microspheres;
(5) putting the composite microspheres in a vacuum oven, and drying for 8 hours at 220 ℃ to obtain sodium hydroxide hollow microspheres;
s2, soaking the hollow microspheres in 180ml of perfluorobutyl methyl ether for 5 min;
s3, filtering and taking out to obtain the foaming microspheres, and storing the foaming microspheres in a closed environment at the temperature of 2 ℃.
Example 3
The embodiment provides a use method for detecting fastening condition of an aircraft external accessory by using foamed microspheres, which specifically comprises the following steps:
obtaining foaming microspheres with perfluorobutyl methyl ether as an inner core and sodium hydroxide as a shell, penetrating the foaming microspheres through a sodium dodecyl sulfate aqueous solution by using an emission device to be emitted above an external accessory to be detected of the airplane, wherein the accessory is not contained in the initial contact position, and then observing the accessory by matching with a thermal imaging camera.
If the attachment is not sufficiently fastened, the rise in temperature of the corresponding surface projection position at the bottom of the attachment can be detected by means of the thermal imaging camera. If the attachment is sufficiently tight, with the aid of a thermal imager, a rise in temperature around the attachment is detected, without a temperature change at the bottom.
In this example, the concentration of the aqueous sodium lauryl sulfate solution is only required to be such that the aqueous solution has excellent foaming ability. The thermal imager may be an infrared imager.
Example 4
The embodiment provides a use method for detecting fastening condition of an aircraft external accessory by using foamed microspheres, which specifically comprises the following steps:
obtaining the foaming microsphere with the inner core of ether and the shell of sodium hydroxide, utilizing an emission device to enable the foaming microsphere to penetrate through a sodium dodecyl sulfate aqueous solution to be emitted to the upper part of an external accessory to be detected of the airplane, enabling the accessory not to be contained in the initial contact position, and then cooperating with a thermal imaging camera to observe the accessory.
If the attachment is not sufficiently fastened, the rise in temperature of the corresponding surface projection position at the bottom of the attachment can be detected by means of the thermal imaging camera. If the attachment is sufficiently tight, with the aid of a thermal imager, a rise in temperature around the attachment is detected, without a temperature change at the bottom.
In this example, the concentration of the aqueous sodium lauryl sulfate solution is only required to be such that the aqueous solution has excellent foaming ability. The thermal imager may be an infrared imager.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (5)
1. A microsphere material for detecting fastening conditions of external accessories of an airplane comprises foamed microspheres and starting liquid, and is characterized in that the foamed microspheres and the starting liquid are stored separately and do not contact with each other when being stored;
the foaming microspheres comprise a microsphere inner core and a microsphere shell;
the inner core of the microsphere is volatile ether, and the spherical shell is sodium hydroxide;
the starting liquid is a surfactant aqueous solution capable of dissolving sodium hydroxide.
2. The microsphere material of claim 1, wherein the volatile ether is perfluorobutyl methyl ether or ethyl ether.
3. A method for preparing foaming microspheres is characterized by comprising the following steps,
s1, preparing sodium hydroxide hollow microspheres with micropores to obtain spherical shells;
s2, impregnating the spherical shell with liquid volatile ether so that the volatile ether is loaded in the spherical shell;
s3, filtering out the liquid volatile ether which is not loaded to obtain the foaming microspheres, and storing the foaming microspheres in a closed environment at the temperature of lower than 4 ℃.
4. The method of claim 3, wherein in step S1, the hollow sodium hydroxide microspheres are prepared by a template method.
5. The method for producing expanded microspheres according to claim 4, wherein the step S1 comprises,
preparing composite microspheres with menthol particles as a core and sodium hydroxide as a shell;
and (3) placing the composite microspheres at the temperature of 218-220 ℃ for heat preservation for 7-8h, and removing menthol to obtain the sodium hydroxide hollow microspheres with micropores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011326298.7A CN112129517B (en) | 2020-11-24 | 2020-11-24 | Microsphere material for detecting fastening condition of aircraft external accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011326298.7A CN112129517B (en) | 2020-11-24 | 2020-11-24 | Microsphere material for detecting fastening condition of aircraft external accessory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112129517A true CN112129517A (en) | 2020-12-25 |
| CN112129517B CN112129517B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011326298.7A Active CN112129517B (en) | 2020-11-24 | 2020-11-24 | Microsphere material for detecting fastening condition of aircraft external accessory |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125504A (en) * | 2021-04-19 | 2021-07-16 | 广西天正钢结构有限公司 | Steel structure weld joint detection process |
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| CN1150764A (en) * | 1994-06-06 | 1997-05-28 | 拜奥波尔公司 | Polymeric microbeads and method of preparation |
| CN102553545A (en) * | 2012-03-16 | 2012-07-11 | 川渝中烟工业有限责任公司 | Cellulose composite microsphere and preparation method thereof |
| CN107556433A (en) * | 2016-06-30 | 2018-01-09 | 翁秋梅 | A kind of dynamic aggregation thing elastomer and its application with hybrid cross-linked network |
| CN108686592A (en) * | 2018-05-21 | 2018-10-23 | 陕西科技大学 | A kind of preparation method of sea urchin shape bivalve layer hollow microsphere |
-
2020
- 2020-11-24 CN CN202011326298.7A patent/CN112129517B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150764A (en) * | 1994-06-06 | 1997-05-28 | 拜奥波尔公司 | Polymeric microbeads and method of preparation |
| CN102553545A (en) * | 2012-03-16 | 2012-07-11 | 川渝中烟工业有限责任公司 | Cellulose composite microsphere and preparation method thereof |
| CN107556433A (en) * | 2016-06-30 | 2018-01-09 | 翁秋梅 | A kind of dynamic aggregation thing elastomer and its application with hybrid cross-linked network |
| CN108686592A (en) * | 2018-05-21 | 2018-10-23 | 陕西科技大学 | A kind of preparation method of sea urchin shape bivalve layer hollow microsphere |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125504A (en) * | 2021-04-19 | 2021-07-16 | 广西天正钢结构有限公司 | Steel structure weld joint detection process |
| CN113125504B (en) * | 2021-04-19 | 2023-01-10 | 广西天正钢结构有限公司 | Steel structure weld joint detection process |
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| Publication number | Publication date |
|---|---|
| CN112129517B (en) | 2021-04-09 |
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