CN109709028A - Accelerated environment spectrum preparation method of the coating under naval air environment - Google Patents
Accelerated environment spectrum preparation method of the coating under naval air environment Download PDFInfo
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- CN109709028A CN109709028A CN201811535919.5A CN201811535919A CN109709028A CN 109709028 A CN109709028 A CN 109709028A CN 201811535919 A CN201811535919 A CN 201811535919A CN 109709028 A CN109709028 A CN 109709028A
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Abstract
The accelerated environment spectrum preparation method that the invention discloses coatings under naval air environment includes the following steps: step 1: collecting the naval air environment data in selected sea area, makes the Environmental Spectrum in the sea area；Step 2: determining warm and humid exposure test environmental condition and ultraviolet irradiation experimental enviroment condition；Step 3, accelerated test environment equivalence calculates: 1) warm and humid exposure test；2) ultraviolet irradiation is tested.Present invention determine that coating marine atmosphere equivalent accelerated environment spectrum and equivalent relation can be used for aircraft structure selection and protection system, corrosion the experimental study of key structure calendar life and verifying, design with evaluation etc..
Description
Technical field
The present invention relates to the acceleration ring of aircraft environment spectrum establishment technique field more particularly to coating under naval air environment
Compose preparation method in border.
Background technique
Marine environment is got off the plane different from land airplane, and Service Environment rather harsh is constantly in high temperature, high humidity, height
Under the marine environment of salinity；Part-structure is corroded by salt fog, splashing seawater and dry/wet alternate circulation, and etching problem is very
Seriously, the strong influence structural life-time of aircraft.Since the natural ageing test period is too long, quickly to determine natural environment pair
The corrosion impact of aircaft configuration need to establish the equivalent relation of natural environment spectrum and laboratory accelerated environment spectrum, thus, when shorter
The interior corrosion damage rule for obtaining aircraft materials, protection system under aircraft parking environment.Due to different structure/materials pair
The sensibility of environment is different, need to establish its corrosion regularity under typical ocean environment of corresponding acceleration environment spectrum analysis.State
It inside generally distinguishes only for different type of machines and varying environment in establishment aircraft environment time spectrum, is not carried out for material at present
Subdivision, therefore current Environmental Spectrum can not embody same Environmental Spectrum to the difference of different materials acceleration effect.
Summary of the invention
The purpose of the present invention: it proposes accelerated environment spectrum preparation method of the coating under naval air environment, is compiled for coating
It makes corresponding Environmental Spectrum and determines equivalent relation.
Technical solution of the present invention:
Accelerated environment spectrum preparation method of the coating under naval air environment, includes the following steps:
Step 1: collecting the naval air environment data in selected sea area, make the Environmental Spectrum in the sea area；
Step 2: determining warm and humid exposure test environmental condition and ultraviolet irradiation experimental enviroment condition；
Step 3, accelerated test environment equivalence calculates:
1) warm and humid exposure test: determine that the warm and humid accelerated test time is 7 days with reference to the CASS spectrum damp heat exposure time；
2) ultraviolet irradiation is tested
A cycle ultraviolet action time is depending on the UV radiation intensity on testpieces surface in ultraviolet testing chamber and outside
The ultraviolet radiation that an exposure cycles receive in the true environment of field；As chamber ultraviolet radiation intensity 60W/m2, Mei Geshi
Ultraviolet irradiation time needed for testing the period are as follows:
Wherein, QZFor the exposure cycles average UV radiation intensity of outfield true environment.
Preferably, naval air environment data include epidemic disaster and average annual salt fog spectrum, the Environmental Spectrum in the sea area in step 1
Including average annual total solar radiation amount, average annual intensity of solar radiation, ultraviolet light content, condensation number.
Preferably, (1) warm and humid exposure test environmental condition uses CASS to compose the experimental condition that temperature and humidity composes block in step 2,
That is: temperature: T=43 DEG C；Relative humidity: RH=(95~100) %；(2) ultraviolet irradiation experimental enviroment condition: ultraviolet in chamber
Beta radiation intensity: 60W/m2；Ultraviolet irradiation can be obtained according to selected sea area sunshine situation and its ultraviolet light year amount of radiation to accelerate
The time of test.
Preferably, the Environmental Spectrum in Hainan sea area are as follows: average annual total solar radiation amount is Q=4687MJ/m2, average annual solar radiation
Intensity is Q'Z=306W/m2, middle-ultraviolet lamp content is 6.53%, and condensation each action time is 5.5 hours, average annual to occur to coagulate
The number of dew is 320 times.
Preferably, coating is obtained in the accelerated environment spectrum in Hainan sea area are as follows:
(1) damp heat exposure is tested: relative humidity: RH=95%, and T=43 DEG C of temperature, exposure duration is 14 hours；
(2) ultraviolet radiation test: T=55 DEG C of temperature, exposure duration is 118 hours；
(3) circulation carries out damp heat exposure test and ultraviolet radiation test 12 times.
Beneficial effects of the present invention: present invention determine that marine atmosphere equivalent accelerated environment spectrum and equivalent relation can be used for flying
The structure selection of machine and protection system, corrosion key structure calendar life experimental study and verifying, design and evaluation etc..
Detailed description of the invention
Fig. 1 is coating accelerated environment spectrum.
Specific embodiment
The present invention is further introduced with reference to the accompanying drawing.
The present invention gives the determination of coating acceleration environment tentative module parameter based on Hainan naval air environment spectrum
The equivalent relation of method and accelerated environment spectrum and Service Environment has worked out the typical ocean atmospheric environment acceleration environment of suitable coating
Spectrum.
1.1 Hainan marine environments spectrum
Table 1, table 2 are respectively average annual temperature and humidity spectrum and average annual salt fog spectrum of Hainan sea area between 14 years.Field data show should
The average annual total solar radiation amount in sea area is Q=4687MJ/m2, average annual intensity of solar radiation is Q 'Z=306W/m2, middle-ultraviolet lamp contains
Amount is 6.53%.
Aircaft configuration surface temperature is lower than atmospheric temperature according to statistics, when relative humidity RH >=65%, is reaching structure dew point
Under conditions of temperature difference, the surface of structure can generate condensation.Actual measurement statistics Hainan sea area has 5~6 on aircaft configuration surface daily
Hour, degree with the humid air reached saturation state, it will be assumed that the effect that since each condensation stop being formed and in aircraft surfaces
Time is 5.5 hours.The result of actual measurement shows that the number that condensation occurs every year for the sea area is 320 times.
1 Hainan sea area of table year samming-humidity spectrum
The average annual salt fog spectrum in 2 Hainan sea area of table
1.2 coating sample accelerated environment spectrums
1.2.1 accelerated environment spectrum is constituted
To the essential environmental factors that coating failure has an impact have salt fog in naval air environment, hot and humid environment and
Ultraviolet light in sunlight, therefore its accelerated environment spectrum is made of three spectrum blocks, i.e., warm and humid exposure test, ultraviolet irradiation test and salt fog
Test.
1) warm and humid exposure test environmental condition
Hygrothermal environment is substantially dependent upon weather conditions.Due to the ocean of its temperature of Hainan sea area, humidity environment and CASS spectrum
Environment is similar, therefore uses the experimental condition of CASS spectrum temperature and humidity spectrum block, it may be assumed that
Temperature: T=43 DEG C；
Relative humidity: RH=(95~100) %；
2) ultraviolet irradiation experimental enviroment condition
Chamber middle-ultraviolet lamp radiation intensity: 60W/m2；According to Hainan sea area sunshine situation and its ultraviolet light year amount of radiation
The time of ultraviolet irradiation accelerated test can be obtained.
3) salt spray test environmental condition
The natural environment salt fog spectrum of statistics is shown according to table 2, the salt fog resultant action time is very short as can be seen from the table, can
To ignore influence of the salt fog to coating structure, therefore laboratory accelerated environment spectrum cancels salt fog and composes block.
1.2.2 accelerated test environment equivalence calculation method
1) warm and humid exposure test
With reference to CASS spectrum damp heat exposure time (CASS is composed damp heat test 7 days and is equivalent to natural environment aging 1 year), temperature is determined
The wet accelerated test time is 7 days.
2) ultraviolet irradiation is tested
A cycle ultraviolet action time is depending on the UV radiation intensity on testpieces surface in ultraviolet testing chamber and outside
The ultraviolet radiation that an exposure cycles receive in the true environment of field.As chamber ultraviolet radiation intensity 60W/m2, outfield is true
The exposure cycles average UV radiation intensity of real environment is Q'ZWhen, ultraviolet irradiation time needed for each test period are as follows:
The average annual Solar Ultraviolet Radiation Over intensity in Hainan sea area is 306MJ/m2, it can obtain:
I.e. ultraviolet irradiation test action time is 1417 hours.
Accelerated environment spectrum is as shown in Figure 1.On each tentative module time multiplied by 1/12 the factor, therefore acceleration environment
It composes 1 circulation and is equivalent to aircraft in Hainan sea area military service 1 month, 12 circulations are equivalent to 1 year.
Claims (5)
1. accelerated environment spectrum preparation method of the coating under naval air environment, which comprises the steps of:
Step 1: collecting the naval air environment data in selected sea area, make the Environmental Spectrum in the sea area；
Step 2: determining warm and humid exposure test environmental condition and ultraviolet irradiation experimental enviroment condition；
Step 3, accelerated test environment equivalence calculates:
1) warm and humid exposure test: determine that the warm and humid accelerated test time is 7 days with reference to the CASS spectrum damp heat exposure time；
2) ultraviolet irradiation is tested
A cycle ultraviolet action time depends on UV radiation intensity in ultraviolet testing chamber on testpieces surface and outfield is true
The ultraviolet radiation that an exposure cycles receive in real environment；As chamber ultraviolet radiation intensity 60W/m2, each test week
Ultraviolet irradiation time needed for phase are as follows:
Wherein, Q 'ZFor the exposure cycles average UV radiation intensity of outfield true environment.
2. accelerated environment spectrum preparation method of the coating as described in claim 1 under naval air environment, which is characterized in that step
Naval air environment data include epidemic disaster and average annual salt fog spectrum in rapid 1, and the Environmental Spectrum in the sea area includes average annual total solar radiation
Amount, average annual intensity of solar radiation, ultraviolet light content, condensation number.
3. accelerated environment spectrum preparation method of the coating as described in claim 1 under naval air environment, which is characterized in that step
(1) warm and humid exposure test environmental condition composes the experimental condition of block using CASS spectrum temperature and humidity in rapid 2, it may be assumed that temperature: T=43 DEG C；Phase
To humidity: RH=(95~100) %；(2) ultraviolet irradiation experimental enviroment condition: chamber middle-ultraviolet lamp radiation intensity: 60W/m2；
The time of ultraviolet irradiation accelerated test can be obtained according to selected sea area sunshine situation and its ultraviolet light year amount of radiation.
4. accelerated environment spectrum preparation method of the coating as described in claim 1 under naval air environment, which is characterized in that sea
The Environmental Spectrum in South Sea domain are as follows: average annual total solar radiation amount is Q=4687MJ/m2, average annual intensity of solar radiation is Q'Z=306W/
m2, middle-ultraviolet lamp content is 6.53%, and condensation each action time is 5.5 hours, and the average annual number that condensation occurs is 320
It is secondary.
5. accelerated environment spectrum preparation method of the coating as claimed in claim 4 under naval air environment, which is characterized in that
Accelerated environment spectrum to coating in Hainan sea area are as follows:
(1) damp heat exposure is tested: relative humidity: RH=95%, and T=43 DEG C of temperature, exposure duration is 14 hours；
(2) ultraviolet radiation test: T=55 DEG C of temperature, exposure duration is 118 hours；
(3) circulation carries out damp heat exposure test and ultraviolet radiation test 12 times.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110954469A (en) * | 2019-12-04 | 2020-04-03 | 山东非金属材料研究所 | Method for rapidly evaluating corrosion of polyurethane elastomer coating in dry-wet alternative marine environment |
| CN111122424A (en) * | 2019-12-24 | 2020-05-08 | 中国特种飞行器研究所 | Coating protection treatment method for advanced reinforced structure |
| CN114076731A (en) * | 2020-08-12 | 2022-02-22 | 株洲中车时代电气股份有限公司 | Dynamic environment spectrum design method and system for coating of electrical cabinet of high-speed train |
| CN114279943A (en) * | 2021-12-06 | 2022-04-05 | 山东非金属材料研究所 | Accelerated test spectrum compilation and test method of foamed ethylene propylene rubber in marine environment |
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2018
- 2018-12-14 CN CN201811535919.5A patent/CN109709028A/en active Pending
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| 刘元海: "典型海洋大气环境当量加速试验环境谱研究", 《装备环境工程》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954469A (en) * | 2019-12-04 | 2020-04-03 | 山东非金属材料研究所 | Method for rapidly evaluating corrosion of polyurethane elastomer coating in dry-wet alternative marine environment |
| CN111122424A (en) * | 2019-12-24 | 2020-05-08 | 中国特种飞行器研究所 | Coating protection treatment method for advanced reinforced structure |
| CN114076731A (en) * | 2020-08-12 | 2022-02-22 | 株洲中车时代电气股份有限公司 | Dynamic environment spectrum design method and system for coating of electrical cabinet of high-speed train |
| CN114076731B (en) * | 2020-08-12 | 2023-08-04 | 株洲中车时代电气股份有限公司 | Dynamic environment spectrum design method and system for high-speed train electrical cabinet coating |
| CN114279943A (en) * | 2021-12-06 | 2022-04-05 | 山东非金属材料研究所 | Accelerated test spectrum compilation and test method of foamed ethylene propylene rubber in marine environment |
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Application publication date: 20190503 |