CN101074916A - Method for fastly inspecting aviation hydraulic oil copper sheet corrosion - Google Patents
Method for fastly inspecting aviation hydraulic oil copper sheet corrosion Download PDFInfo
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- CN101074916A CN101074916A CN 200710023802 CN200710023802A CN101074916A CN 101074916 A CN101074916 A CN 101074916A CN 200710023802 CN200710023802 CN 200710023802 CN 200710023802 A CN200710023802 A CN 200710023802A CN 101074916 A CN101074916 A CN 101074916A
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- copper sheet
- hydraulic oil
- corrosion
- aviation hydraulic
- sensitizer
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Abstract
A method of using copper plate to detect corrosion grade of aviation hydraulic oil includes polishing copper plate then placing copper plate into reaction system formed by aviation hydraulic oil and polarity-sensitizer, setting copper plate and said reaction system into microwave heating device for carrying out heating reaction of 30-300minutes, taking copper plate out and judging corrosion grade of aviation hydraulic oil according to corroded color of copper plate.
Description
Affiliated technical field
The present invention relates to aircraft fluid copper strip test assay method.It specifically is a kind of method for fastly inspecting aviation hydraulic oil copper sheet corrosion
Background technology
Aircraft fluid is the liquid that carries out work at plane hydraulic system, it not only wants to transmit pressure effectively, also will play effects such as lubricated, sealing, antirust, anticorrosion, cooling, can the quality of its performance be directly connected to hydraulic system and work effectively reliably, influences flight safety.Press aircraft fluid copper strip test method standard (GB/T5096-91) regulation, copper strip test is that a copper sheet that polishes, washs, dries is immersed in a certain amount of sample, be under 135 ℃ the condition in test temperature, kept 72 hours, take out copper sheet, after washing, compare, determine corrosion level with the corrosion Standard colour board.In order to ensure safety, require its corrosion level to be not more than 2e.But because test period is long, not only the workload of testing crew is heavy, and has had a strong impact on the supply guarantee of aircraft fluid.
Summary of the invention
The purpose of this invention is to provide a kind of copper strip test rapid assay methods, shorten test period as far as possible, to improve the quick supportability and the level of aircraft fluid.
The present invention realizes with following technical scheme: microwave is a kind of electromagnetic wave from low frequency radio wave to the high frequency-infrared district, its frequency range is 300MHz-30GHz, being used for heating, to have a programming rate fast, efficiency of heating surface height, homogeneous heating, be easy to make various polar solvent heating such as polar liquid such as water, ethanol etc., make the atom and the molecule generation vibration at high speed of material, for chemical reaction creates more favourable thermodynamic condition.This invention has utilized these characteristics of microwave heating just, copper sheet is placed microwave device, accelerate the corrosion reaction of oil sample to copper sheet, thereby reach the purpose of fast detecting, concrete grammar is: earlier the copper sheet polishing is placed in the reaction system of being made up of aircraft fluid and polarity sensitizer, then copper sheet and reaction system are put into microwave heating equipment, added thermal response 30～300 minutes, take out the corrosion level of back according to copper corrosion color judgement aircraft fluid, the volume of described reaction system is 20～150mL.
The consumption of aircraft fluid in the described reaction system and polarity sensitizer is: oil sample volume 20～150mL, sensitizer consumption are 6～50mL.
Described sensitizer is a kind of in benzoic acid, chlorobenzene formic acid, phenylacetic acid, chlorophenyl acetic acid, diglycol, triethylene-glycol, butanone, methyl formate, ethyl acetate, n-butyl acetate, ethylene glycol methyl esters, the ethyl glycol or their potpourri.
Described detected temperatures is 130～300 ℃.
Owing to adopted microwave heating technique, accelerated the reaction of copper sheet and oil sample, thereby reached the effect of fast detecting.Compare with conventional method, shortened to from 72 hours detection time and be less than 300 minutes.Through test, testing result has better repeatability and repeatability.Microwave promotes the corrosion level of copper corrosion accelerated test procedures evaluation oil sample, and to 0～4 grade of oil sample, corrosion test result is consistent with standard test method, with the comparative test result such as the following table of standard method.
Microwave promotes copper corrosion accelerated test procedures and standard test method contrast table
| Standard test method (135 ℃, 72h) | Microwave rapid detecting method | |||
| Numbering | Phenomenon | Rank | Phenomenon | Rank |
| 0 1 2 3 4 | Any surface finish as before 1. greenish orange look 2. darkorange 1. aubergine 2. lavender 3. with purplish blue color 4. silver color 5. brass 1. carmetta cover 2. 1. 2. 3. glossiness black of graphite black of transparent black of peacock green of broken colour on the brass | 0 1 2 3 4 | Almost with the same 1. greenish orange look of new polishing copper sheet 2. darkorange 1. aubergine 2. lavender 3. with purplish blue color and silver color 4. silver color 5. golden yellow 1. carmetta cover 1. 2. 3. glossiness black of lacklustre black of transparent black of broken colour that 2. broken colour on the brass have red and a green demonstration | 0 1 2 3 4 |
The invention has the beneficial effects as follows:, accelerated the reaction of copper sheet and oil sample, thereby reached the effect of fast detecting owing to adopted microwave heating technique.Microwave promotes the silver slice corrosion accelerated test procedures to compare with the GB/T5096-91 test method, has simple to operately, grasp easily, and test period reduces greatly, has reduced laboratory personnel's workload.
Embodiment
Further illustrate method of the present invention and effect by the following examples.
In order to make short-time test result and standard test method have comparability, contrast test is adopted in experiment.
One, experimental facilities: the microwave device for fast detecting of reequiping is adopted in experiment.The microwave peak power output is 700W, and the effect frequency is 2450MHz, and microwave radiation inner cavity size 400mm * 350mm * 400mm, inner chamber capacity are 35L.
Two, test material
1. test tube: be used to hold oil sample and copper sheet.
2. test piece anchor clamps: do not damage its corner in order to clamp copper sheet.
3. thermometer: 0～300 ℃, 1 ℃ of scale division value.
4. amount letter: 100mL, 20mL, 10mL, 1mL.
5. copper sheet: purity is greater than 99.9% cathode copper.Long 75mm, wide 12.5mm, thick 1.5～3.0mm.
6. polishing material: 150 orders, 240 purpose silit fine sandpapers.
7. medicinal absorbent cotton.
Three, reagent:
1. isooctane: analyze pure.
2. a kind of in benzoic acid, chlorobenzene formic acid, phenylacetic acid, chlorophenyl acetic acid, diglycol, triethylene-glycol, butanone, methyl formate, ethyl acetate, n-butyl acetate, ethylene glycol methyl esters, the ethyl glycol or their potpourri, agents useful for same be analyze pure.
Embodiment 1:
(1) test condition
Oil sample volume 50mL, sensitizer consumption 6.0mL, microwave power 700W, 40 minutes reaction time, 150 ℃ of temperature of reaction.
(2) test findings
| Standard test method (135 ℃, 72h) | Microwave rapid detecting method | ||
| Phenomenon | Rank | Phenomenon | Rank |
| Greenish orange look | 1a | Greenish orange look | 1a |
Embodiment 2:
(1) test condition
Oil sample volume 100mL, sensitizer consumption 20mL, microwave power 700W, 80 minutes reaction time, 200 ℃ of temperature of reaction.
(2) test findings
| Standard test method (135 ℃, 72h) | Microwave rapid detecting method | ||
| Phenomenon | Rank | Phenomenon | Rank |
| Brass | 2e | Golden yellow | 2e |
Embodiment 3:
(1) test condition
Oil sample volume 150mL, sensitizer consumption 50mL, microwave power 700W, 240 minutes reaction time, 250 ℃ of temperature of reaction.
(2) test findings
| Standard test method (135 ℃, 72h) | Microwave rapid detecting method | ||
| Phenomenon | Rank | Phenomenon | Rank |
| Peacock green | 3b | The broken colour that red and green demonstration are arranged | 3b |
Claims (4)
1, a kind of method for fastly inspecting aviation hydraulic oil copper sheet corrosion, it is characterized in that carrying out as follows: earlier the copper sheet polishing is placed in the reaction system of being made up of aircraft fluid and polarity sensitizer, then copper sheet and reaction system are put into microwave heating equipment and added thermal response 30～300 minutes, take out the corrosion level of back according to copper corrosion color judgement aircraft fluid, the volume of described reaction system is 20～150mL.
2, method for fastly inspecting aviation hydraulic oil copper sheet corrosion according to claim 1 is characterized in that the aircraft fluid in the described reaction system and the consumption of polarity sensitizer are: contain sensitizer 6～50mL among oil sample volume 20～150mL.
3, method for fastly inspecting aviation hydraulic oil copper sheet corrosion according to claim 1 and 2 is characterized in that described polarity sensitizer is a kind of in benzoic acid, chlorobenzene formic acid, phenylacetic acid, chlorophenyl acetic acid, diglycol, triethylene-glycol, butanone, methyl formate, ethyl acetate, n-butyl acetate, ethylene glycol methyl esters, the ethyl glycol or they are by the potpourri of making a gesture of measuring arbitrarily.
4, method for fastly inspecting aviation hydraulic oil copper sheet corrosion according to claim 1 is characterized in that described detected temperatures is 130～300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710023802 CN101074916A (en) | 2007-06-18 | 2007-06-18 | Method for fastly inspecting aviation hydraulic oil copper sheet corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710023802 CN101074916A (en) | 2007-06-18 | 2007-06-18 | Method for fastly inspecting aviation hydraulic oil copper sheet corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101074916A true CN101074916A (en) | 2007-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710023802 Pending CN101074916A (en) | 2007-06-18 | 2007-06-18 | Method for fastly inspecting aviation hydraulic oil copper sheet corrosion |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115615912A (en) * | 2022-10-28 | 2023-01-17 | 天蔚蓝电驱动科技(江苏)有限公司 | Method and device for detecting copper corrosion of oil product for oil-cooled motor |
-
2007
- 2007-06-18 CN CN 200710023802 patent/CN101074916A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115615912A (en) * | 2022-10-28 | 2023-01-17 | 天蔚蓝电驱动科技(江苏)有限公司 | Method and device for detecting copper corrosion of oil product for oil-cooled motor |
| CN115615912B (en) * | 2022-10-28 | 2024-03-01 | 天蔚蓝电驱动科技(江苏)有限公司 | Method and device for detecting copper corrosion of oil product for oil-cooled motor |
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Open date: 20071121 |