CN109900629A - A kind of environmental device and test method for metallic material corrosion fatigue test - Google Patents
A kind of environmental device and test method for metallic material corrosion fatigue test Download PDFInfo
- Publication number
- CN109900629A CN109900629A CN201910171512.7A CN201910171512A CN109900629A CN 109900629 A CN109900629 A CN 109900629A CN 201910171512 A CN201910171512 A CN 201910171512A CN 109900629 A CN109900629 A CN 109900629A
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- rubber stopper
- environmental cabinet
- environmental
- casing
- metallic material
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- 230000007613 environmental effect Effects 0.000 title claims abstract description 64
- 238000005260 corrosion Methods 0.000 title claims abstract description 37
- 230000007797 corrosion Effects 0.000 title claims abstract description 37
- 238000009661 fatigue test Methods 0.000 title claims abstract description 22
- 239000007769 metal material Substances 0.000 title claims abstract description 21
- 238000010998 test method Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract 1
- 230000003749 cleanliness Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Abstract
The present invention relates to a kind of environmental devices and test method for metallic material corrosion fatigue test, belong to metallurgy industry metallic material corrosion fatigue testing equipment technical field.Technical solution is: the top of environmental cabinet (9) is equipped with environment box cover (2), the bottom of environmental cabinet (9) is equipped with casing (12), casing (12) is equipped with external screw thread, rubber stopper fixture nut (11) is threaded on casing (12), is respectively equipped with hole on rubber stopper (10) and environment box cover (2)；Flow-controllable peristaltic pump (7) is connect by water inlet pipe with the water inlet (8) of environmental cabinet (9), solution storage container (13) is connect by return pipe with the water outlet (3) of environmental cabinet (9), return pipe is equipped with filter element (4), and constant temperature unit (5) and pH value detection meter (6) are equipped in the solution storage container (13).The beneficial effects of the present invention are: good airproof performance；The real-time monitoring of the key parameters such as flow, temperature, pH value can be achieved.
Description
Technical field
The present invention relates to a kind of environmental devices and test method for metallic material corrosion fatigue test, belong to metallurgical row
Industry metallic material corrosion fatigue testing equipment technical field.
Background technique
Metallic material corrosion and tired double action are the dominant failure modes of structural timber, are especially navigated in aviation
It, the performance of the fields such as ocean engineering, nuclear power become apparent, Performance Evaluation of metal material under the conditions of environmental working condition is also increasingly
By paying attention in industry, traditional corrosion and fatigue individual event assessment has been unable to meet demand, and fatigue property test is cured under corrosive environment
Send out important.
The key point of metallic material corrosion fatigue test is the accurate simulation of corrosive environment.Currently, disclosing both at home and abroad
The environment simulator for corrosion fatigue test it is more, be primarily present that corrosive liquid easily leaks, test parameters cannot supervise in real time
The problems such as survey, influences the accuracy of test result.
Summary of the invention
It is close the object of the present invention is to provide a kind of environmental device and test method for metallic material corrosion fatigue test
Envelope property gets well real-time monitoring and adjustment, it can be achieved that the key parameters such as flow, temperature and pH value, improves the accuracy of test result,
Solve the problems, such as background technique.
The technical scheme is that
A kind of environmental device for metallic material corrosion fatigue test includes environment box cover, water outlet, filter element, perseverance
Warm unit, pH value detection meter, flow-controllable peristaltic pump, water inlet, environmental cabinet, rubber stopper, rubber stopper fixture nut, casing and molten
Liquid storage container, the top of environmental cabinet are equipped with environment box cover, and the bottom of environmental cabinet is equipped with the casing being connected to environmental cabinet, described
Casing is into a single integrated structure with environmental cabinet, and casing is equipped with external screw thread, and rubber stopper fixture nut is threaded on casing, rubber stopper plug
In casing, the hole matched with sample is respectively equipped on rubber stopper and environment box cover；The environmental cabinet be equipped with water inlet and
Water outlet, flow-controllable peristaltic pump are connected by the water inlet of water inlet pipe and environmental cabinet, solution storage container by return pipe with
The water outlet of environmental cabinet connects, and return pipe is equipped with filter element, is equipped with constant temperature unit and pH value in the solution storage container
Detection meter.
The rubber stopper and the center line in the hole on environment box cover are overlapped.
The environmental cabinet is cylindrical form container made of acid and alkali-resistance transparent material, and solution storage container is corrosion-resistant appearance
Device.
The lower part of environmental cabinet is arranged in the water inlet of the environmental cabinet, and the upper of environmental cabinet is arranged in the water outlet of environmental cabinet
Portion.
Constant temperature unit in the solution storage container includes heating device, circulating pump, thermometer and corrosion-resistant conduit, resistance to
One end of corrosion in pipes is connect with flow-controllable peristaltic pump, and the other end of corrosion-resistant conduit is connect with circulating pump.
Filter element in the flow-controllable peristaltic pump, heating device and return pipe in constant temperature unit is ability
Domain well-known technique, wherein flow-controllable peristaltic pump has flow regulating function, and main function provides circulation power for solution；It is permanent
Heating device in warm unit is mainly used for the solution in heated solution storage container, and solution is made to keep certain constant temperature；Return water
The liquid that the main function of filter element in pipe ensures to flow into solution storage container has good cleanliness.
A method of it is rotten for metal material using one kind defined by above-mentioned for metallic material corrosion fatigue test
Lose the environmental device of fatigue test, comprising the following steps:
1. processing sample according to national standards, and surface polishing treatment is carried out to sample；
2. said sample is placed in the ultrasonic container for filling acetone, after cleaning 10-15 minutes, specimen surface is purged dry
Only；
3. the both ends of sample are separately fixed in the hole of environment box cover and rubber stopper, and between sample and rubber stopper and
Silica gel is smeared between rubber stopper and casing to be sealed；
4. the rubber stopper fixture nut on casing is tightened；
5. the both ends of sample are mounted on fatigue tester；
6. corrosive liquid is added in solution storage container, the mesohaline mass percent of corrosive liquid is 3.34%；Corrosive liquid
Specific gravity is 1.02-1.04, and PH 7.8-8.5, temperature is 30-42 DEG C；
7. starting flow-controllable peristaltic pump and fatigue tester, start to carry out corrosion fatigue test to sample according to national standards,
Until off-test.
The beneficial effects of the present invention are: passing through rubber stopper, rubber stopper fixture nut and silica gel between sample and environmental cabinet
Carry out multiple leakproof seal, good airproof performance.Flow-controllable peristaltic pump not only provided liquid circulation power, but also there is flow to adjust function
Energy；Whole system can realize the real-time monitoring of the key parameters such as flow, temperature, pH value, convenient for real according to the actual situation in test
When be adjusted, so that test process is more in line with standard requirements.
Detailed description of the invention
Fig. 1 is partial schematic diagram of the present invention；
Fig. 2 is cross-sectional view of the present invention；
In figure: sample 1, environment box cover 2, water outlet 3, filter element 4, constant temperature unit 5, pH value detection meter 6, flow-controllable are compacted
Dynamic pump 7, liquid flow to regulation button 7-1, fluid flow regulation button 7-2, water inlet 8, environmental cabinet 9, rubber stopper 10, rubber stopper
Fixture nut 11, casing 12, solution storage container 13.
Specific embodiment
Below in conjunction with attached drawing, by example, the invention will be further described.
Referring to attached drawing 1,2, a kind of environmental device for metallic material corrosion fatigue test comprising environment box cover 2, goes out
The mouth of a river 3, filter element 4, constant temperature unit 5, pH value detection meter 6, flow-controllable peristaltic pump 7, water inlet 8, environmental cabinet 9, rubber stopper
10, the top of rubber stopper fixture nut 11, casing 12 and solution storage container 13, environmental cabinet 9 is equipped with environment box cover 2, environment
The bottom of case 9 is equipped with the casing 12 being connected to environmental cabinet 9, and described sleeve pipe 12 and environmental cabinet 9 are into a single integrated structure, and casing 12 is equipped with outer
Screw thread, rubber stopper fixture nut 11 are threaded on casing 12, and rubber stopper 10 fills in rubber stopper 10 and environmental cabinet in casing 12
The hole matched with sample is respectively equipped in upper cover 2；The environmental cabinet 9 is equipped with water inlet 8 and water outlet 3, and flow-controllable is wriggled
Pump 7 is connect by water inlet pipe with the water inlet 8 of environmental cabinet 9, and solution storage container 13 passes through the water outlet of return pipe and environmental cabinet 9
3 connections, return pipe are equipped with filter element 4, and constant temperature unit 5 and pH value detection meter 6 are equipped in the solution storage container 13.
In the present embodiment, referring to attached drawing 1,2, environmental cabinet 9 is cylindrical form container made of acid and alkali-resistance transparent material, molten
Liquid storage container 13 is corrosion-resistant container.The lower part of environmental cabinet 9, the water outlet 3 of environmental cabinet 9 is arranged in the water inlet 8 of environmental cabinet 9
The top of environmental cabinet 9 is set.Rubber stopper 10 and the center line in the hole on environment box cover 2 are overlapped.
Flow-controllable peristaltic pump 7 has the function of that flow direction is adjusted and flow is adjusted, and passes through the water inlet of rubber tube and environmental cabinet 9
Mouth 8 is connected；Filter element 4 is connected by rubber tube with the water outlet 3 of environmental cabinet 9.Solution PH detection meter 6 and constant temperature unit
5 are mounted in solution storage container 13.Filter element 4 is mounted on water return pipeline, it is ensured that flows into the liquid of solution storage container 13
Body has good cleanliness.Constant temperature unit 5 in solution storage container 13 includes heating device, circulating pump, thermometer and resistance to
One end of corrosion in pipes, corrosion-resistant conduit is connect with flow-controllable peristaltic pump 7, and the other end and circulating pump of corrosion-resistant conduit connect
It connects.
The flowing through channel of solution is;7 → water inlet pipe of solution storage container 13 → flow-controllable peristaltic pump → environmental cabinet 9 → return
Water pipe → 4 → solution storage container of filter element 13.
The processing and fabricating of sample: the working process of corrosion fatigue sample is more crucial, and sample processes strict implement GB/
Dumbbell shape pole is processed into the requirement of T20120.0-2006, and specimen size is Φ 5mm- Φ 18mm, and is carried out at surface polishing
Reason.Before test, first carry out degreasing processing, and using acetone cleaned in ultrasonic container 10-15 minutes after electricity consumption blowing
Dry sample surface.
Corrosive liquid in solution storage container 13: seawater component proportion, salinity mass percent are 3.34%, and specific gravity is
1.02-1.04, PH 7.8-8.5, temperature are 30-42 DEG C.
When test, the upper end of sample 1 is fixed in the hole of environment box cover 2, the lower end of sample 1 is passed through into rubber stopper 10
In hole, and the entirety of sample 1 and rubber stopper 10 is filled in the casing 12 of environmental cabinet 9, rubber stopper 10 and 9 bottom of environmental cabinet
Casing 12 realizes a drip-preventing function by squeezing.Rubber stopper fixture nut 11 is real by being tightened on the casing 12 of environmental cabinet 9
Existing secondary leakproof, smears 704 silica gel sealings between sample 1 and rubber stopper 10 and between rubber stopper 10 and casing 12, finally,
The both ends of sample are mounted on fatigue tester, and carry out fatigue test according to national standards.
Claims (6)
1. a kind of environmental device for metallic material corrosion fatigue test, it is characterised in that: comprising environment box cover (2), go out
The mouth of a river (3), filter element (4), constant temperature unit (5), pH value detection meter (6), flow-controllable peristaltic pump (7), water inlet (8), ring
Border case (9), rubber stopper (10), rubber stopper fixture nut (11), casing (12) and solution storage container (13), environmental cabinet (9)
Top is equipped with environment box cover (2), and the bottom of environmental cabinet (9) is equipped with the casing (12) being connected to environmental cabinet (9), described sleeve pipe
(12) into a single integrated structure with environmental cabinet (9), casing (12) is equipped with external screw thread, and rubber stopper fixture nut (11) is threaded in casing
(12) on, rubber stopper (10) plug is respectively equipped on rubber stopper (10) and environment box cover (2) and matches with sample in casing (12)
The hole of conjunction；The environmental cabinet (9) is equipped with water inlet (8) and water outlet (3), and flow-controllable peristaltic pump (7) passes through water inlet pipe and ring
The water inlet (8) of border case (9) connects, and solution storage container (13) is connect by return pipe with the water outlet (3) of environmental cabinet (9),
Return pipe is equipped with filter element (4), and constant temperature unit (5) and pH value detection meter (6) are equipped in the solution storage container (13).
2. a kind of environmental device for metallic material corrosion fatigue test according to claim 1, it is characterised in that: institute
The center line for stating rubber stopper (10) and the hole on environment box cover (2) is overlapped.
3. a kind of environmental device for metallic material corrosion fatigue test according to claim 1, it is characterised in that: institute
Stating environmental cabinet (9) is cylindrical form container made of acid and alkali-resistance transparent material, and solution storage container (13) is corrosion-resistant container.
4. a kind of environmental device for metallic material corrosion fatigue test according to claim 1, it is characterised in that: institute
Water inlet (8) setting of environmental cabinet (9) is stated in the lower part of environmental cabinet (9), the water outlet (3) of environmental cabinet (9) is arranged in environmental cabinet
(9) top.
5. a kind of environmental device for metallic material corrosion fatigue test according to claim 1, it is characterised in that: institute
Stating the constant temperature unit (5) in solution storage container (13) includes heating device, circulating pump, thermometer and corrosion-resistant conduit, corrosion resistant
One end of erosion conduit is connect with flow-controllable peristaltic pump (7), and the other end of corrosion-resistant conduit is connect with circulating pump.
6. a kind of method for metallic material corrosion fatigue test, it is characterised in that: using one defined by claim 1-5
Kind is used for the environmental device of metallic material corrosion fatigue test, comprising the following steps:
1. processing sample according to national standards, and surface polishing treatment is carried out to sample；
2. said sample is placed in the ultrasonic container for filling acetone, after cleaning 10-15 minutes, specimen surface is purged dry
Only；
3. the both ends of sample are separately fixed in the hole of environment box cover (2) and rubber stopper (10), and in sample and rubber stopper
(10) silica gel is smeared between and between rubber stopper (10) and casing (12) to be sealed；
4. the rubber stopper fixture nut (11) on casing (12) is tightened；
5. the both ends of sample are mounted on fatigue tester；
6. corrosive liquid is added in solution storage container (13), the mesohaline mass percent of corrosive liquid is 3.34%；Corrosion
The specific gravity of liquid is 1.02-1.04, and PH 7.8-8.5, temperature is 30-42 DEG C；
7. starting flow-controllable peristaltic pump (7) and fatigue tester, start to carry out corrosion fatigue examination to sample according to national standards
It tests, until off-test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910171512.7A CN109900629B (en) | 2019-03-07 | 2019-03-07 | Environment device and test method for corrosion fatigue test of metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910171512.7A CN109900629B (en) | 2019-03-07 | 2019-03-07 | Environment device and test method for corrosion fatigue test of metal material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109900629A true CN109900629A (en) | 2019-06-18 |
| CN109900629B CN109900629B (en) | 2024-03-22 |
Family
ID=66946621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910171512.7A Active CN109900629B (en) | 2019-03-07 | 2019-03-07 | Environment device and test method for corrosion fatigue test of metal material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109900629B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553924A (en) * | 2019-09-11 | 2019-12-10 | 哈尔滨工业大学 | test device and method for realizing corrosion-creep coupling of fiber composite material |
| CN111157383A (en) * | 2019-12-25 | 2020-05-15 | 西南交通大学 | Material stress corrosion test system and method capable of accurately controlling corrosion conditions |
| CN111426572A (en) * | 2020-03-13 | 2020-07-17 | 天津大学 | Constant-load stress corrosion on-line observation test device under hydrofluoric acid environment |
| CN113237784A (en) * | 2021-03-22 | 2021-08-10 | 安徽工程大学 | Device and method for testing frictional wear performance of magnetic fluid |
| CN113624669A (en) * | 2021-07-30 | 2021-11-09 | 中车工业研究院有限公司 | Metal corrosion fatigue crack propagation testing device and method |
| CN113624670A (en) * | 2021-07-30 | 2021-11-09 | 中车工业研究院有限公司 | Metal corrosion fatigue testing device and method |
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| CN113237784A (en) * | 2021-03-22 | 2021-08-10 | 安徽工程大学 | Device and method for testing frictional wear performance of magnetic fluid |
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| Publication number | Publication date |
|---|---|
| CN109900629B (en) | 2024-03-22 |
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