CN110426274A - The erection stress corrosion testing apparatus and installation method of plane aluminium alloy wall class formation - Google Patents
The erection stress corrosion testing apparatus and installation method of plane aluminium alloy wall class formation Download PDFInfo
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- CN110426274A CN110426274A CN201910657903.XA CN201910657903A CN110426274A CN 110426274 A CN110426274 A CN 110426274A CN 201910657903 A CN201910657903 A CN 201910657903A CN 110426274 A CN110426274 A CN 110426274A
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- bottom plate
- stress corrosion
- aluminium alloy
- typical part
- steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- Environmental & Geological Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention relates to stress corrosion (cracking) test experimental rig fields, the specifically erection stress corrosion testing apparatus and installation method of plane aluminium alloy wall class formation, including the bottom plate for placing typical part, further include: several groups force assembly bolt, it is arranged on typical part and cooperates with bottom plate, for so that typical part is fixed with bottom plate；Device is adjusted, is arranged on bottom plate, for cooperating typical part to be tested, the specific steps of which are as follows: S1: fixed；S2: installation；S3: it tightens；The thickness of gasket is adjusted by changing steel, typical part is set to generate erection stress corresponding with the gap width, to reach auxiliary stress corrosion (cracking) test result, and immediately arrive at the purpose of the corresponding relationship of plane aluminium alloy wall class formation fit-up gap and erection stress corrosion cracking time, it is loaded without using testing machine, test funds can be saved, there is economic benefit.
Description
Technical field
The present invention relates to stress corrosion (cracking) test experimental rig fields, the specifically erection stress of plane aluminium alloy wall class formation
Corrosion testing apparatus and installation method.
Background technique
The wrought aluminium alloy tensile stress etching test method of Ministry of Aeronautics Industry, People's Republic of China (PRC) ministerial standard HB5254
In give the stress corrosion (cracking) test method of plate shape stress corrosion sample and stick stress corrosion sample.According to the deformation of HB5254
In Aluminum alloy tensile stress corrosion (cracking) test method, sample passes through testing machine to the axially loaded generation of experimental rig in a corrosive environment
Stress measures the total time from on-test to sample fracture, when obtaining the sample stress corrosion cracking under different stress conditions
Between.
Using aluminium alloy can be measured in different stress in the wrought aluminium alloy tensile stress etching test method of HB5254
The time of stress corrosion cracking under level conditions, but when measuring specific plane aluminium alloy wall class formation stress corrosion cracking
Between when have the disadvantage that
The stress corrosion cracking of plane aluminium alloy wall class formation is wanted since plate height is to there are erection stresses to generate
Measurement plate height is just needed to the stress corrosion cracking time: for processing
The aluminum alloy plate materials of plane aluminium alloy wall class formation, the high wrought aluminium alloy tensile stress for being unable to satisfy HB5254 to size are rotten
Experimental rig preparation size requirement in corrosion test method.
Plane aluminium alloy wall class formation it is high to stress be due to there are fit-up gap and forcing assembly between structure and lead
The erection stress of cause.Corresponding relationship between erection stress and fit-up gap needs just obtain by mathematics, force equation conversion,
Conversion process is cumbersome, and scaling results cannot react the practical set stress level of plane aluminium alloy wall class formation completely.Therefore,
Test result obtained in wrought aluminium alloy tensile stress etching test method using HB5254 cannot directly reflect aircraft aluminium
The alloy wall class formation erection stress corrosion cracking time.
Summary of the invention
To solve the above-mentioned problems, the present invention propose plane aluminium alloy wall class formation erection stress corrosion testing apparatus and
Installation method.
The erection stress corrosion testing apparatus of plane aluminium alloy wall class formation, including the bottom plate for placing typical part,
Further include:
Several groups force assembly bolt, are arranged on typical part and cooperate with bottom plate, for so that typical part and bottom
Plate is fixed；
Device is adjusted, is arranged on bottom plate, for cooperating typical part to be tested.
It is provided on every group of forced assembly bolt and forces assembly nut.
If the adjustment device includes the steel adjustment gasket being arranged on bottom plate, steel adjusting pad on piece is arranged in
Dry group steel adjusts gasket fixing bolt, is provided with steel adjustment gasket on every group of steel adjustment gasket fixing bolt
Fixture nut.
The installation method of the erection stress corrosion testing apparatus of plane aluminium alloy wall class formation, the specific steps of which are as follows:
S1: fixed: steel being adjusted into gasket using steel adjustment gasket fixing bolt and steel adjustment gasket fixture nut
It is fixed on bottom plate；
S2: installation: typical part is mounted on bottom plate, and steel adjustment gasket is made to protrude into the binding face of type part and bottom plate
Between, it is allowed to generate fit-up gap；
S3: it tightens: tightening and force assembly bolt and force assembly nut, typical part and bottom plate is made to force assembly bolt
It is deformed under pretightning force effect with forced assembly nut, eliminates gap between the two to generate erection stress and carry out
Test.
The built-in length of the steel adjustment gasket of the step (2) is no more than the web thickness of typical part.
The beneficial effects of the present invention are: adjusting the thickness of gasket by changing steel, generate typical part and the gap
It is worth corresponding erection stress, to reach auxiliary stress corrosion (cracking) test as a result, and immediately arriving at the assembly of plane aluminium alloy wall class formation
The purpose of the corresponding relationship of gap and erection stress corrosion cracking time, loads without using testing machine, can save test funds,
With economic benefit；It solves plane aluminium alloy wall class formation processing plate height and is unsatisfactory for wrought aluminium alloy in HB5254 to size
The experimental rig preparation size requirement of tensile stress etching test method, leads to that high asking to stress corrosion (cracking) test cannot be carried out
Topic.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that aircraft wall class formation aluminium alloy of the invention processes plate direction definition structural schematic diagram；
Fig. 2 is schematic perspective view of the invention；
Fig. 3 is schematic view of the front view two of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below it is right
The present invention is further described.
As shown in Figure 1 to Figure 3, the erection stress corrosion testing apparatus of plane aluminium alloy wall class formation, including for placing
The bottom plate 3 of typical part 1, further includes:
Several groups force assembly bolt 4, are arranged on typical part 1 and cooperate with bottom plate 3, for so that typical part 1
It is fixed with bottom plate 3；
Device is adjusted, is arranged on bottom plate 3, for cooperating typical part 1 to be tested.
It is provided on every group of forced assembly bolt 4 and forces assembly nut 6.
The adjustment device includes the steel adjustment gasket 2 being arranged on bottom plate 3, setting on steel adjustment gasket 2
Several groups steel adjust gasket fixing bolt 5, be provided with steel tune on described every group of steel adjustment gasket fixing bolt 5
Whole gasket fixture nut 7.
A in Fig. 1 be laterally, b be it is longitudinal, c be it is high to.
The thickness that gasket 2 is adjusted by changing steel makes typical part 1 generate erection stress corresponding with the gap width,
To reach auxiliary stress corrosion (cracking) test as a result, and immediately arriving at plane aluminium alloy wall class formation fit-up gap and erection stress corrosion
The purpose of the corresponding relationship of cracking time loads without using testing machine, can save test funds, has economic benefit；It solves
Plane aluminium alloy wall class formation, which processes plate height and is unsatisfactory for wrought aluminium alloy tensile stress etching in HB5254 to size, to be tested
The experimental rig preparation size requirement of method, leads to carry out height to the problem of stress corrosion (cracking) test.
The installation method of the erection stress corrosion testing apparatus of plane aluminium alloy wall class formation, the specific steps of which are as follows:
S1: fixed: to adjust gasket fixture nut 7 for steel adjusting pad using steel adjustment gasket fixing bolt 5 and steel
Piece 2 is fixed on bottom plate 3；
S2: installation: typical part 1 is mounted on bottom plate 3, and steel adjustment gasket 2 is made to protrude into type part 1 and bottom plate 3
Between binding face, it is allowed to generate fit-up gap；
S3: it tightens: tightening and force assembly bolt 4 and force assembly nut 6, typical part 1 and bottom plate 3 is made to force assembly
It is deformed under bolt 4 and the pretightning force effect for forcing assembly nut 6, eliminates gap between the two to generate erection stress
And it is tested.
The introducing that gasket 2 is adjusted by steel, makes to generate fit-up gap between typical part 1 and bottom plate 3, and utilizes and force
Assembly bolt 4 and the pretightning force for forcing assembly nut 6 to generate when tightening make the allusion quotation of the class formation local feature of wall containing plane aluminium alloy
Type part 1 and bottom plate 3 are deformed from the generation of typical part 1 and aircraft aluminium for making the class formation local feature of wall containing plane aluminium alloy
There are erection stresses equivalent when identical fit-up gap for alloy wall class formation.
The thickness that gasket 2 is adjusted by changing steel can make typical part 1 generate dress corresponding from different fit-up gaps
With stress, by prepare it is a series of tested containing different fit-up gap token test devices, obtain a series of fit-up gaps
Under erection stress corrosion test as a result, the plane aluminium alloy wall class knot with the experimental rig characteristic parameter can be immediately arrived at
Erection stress corrosion cracking time of structure under conditions of there is the fit-up gap equal with steel adjustment 2 thickness value of gasket.
The built-in length of the steel adjustment gasket 2 of the step (2) is no more than the web thickness of typical part 1.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (5)
1. the erection stress corrosion testing apparatus of plane aluminium alloy wall class formation, including the bottom plate for placing typical part (1)
(3), it is characterised in that: further include:
Several groups force assembly bolt (4), are arranged on typical part (1) and cooperate with bottom plate (3), for so that typical part
(1) fixed with bottom plate (3)；
Device is adjusted, is arranged on bottom plate (3), for cooperating typical part (1) to be tested.
2. the erection stress corrosion testing apparatus of plane aluminium alloy wall class formation according to claim 1, it is characterised in that:
It is provided on every group of forced assembly bolt (4) and forces assembly nut (6).
3. the erection stress corrosion testing apparatus of plane aluminium alloy wall class formation according to claim 1, it is characterised in that:
The adjustment device includes steel adjustment gasket (2) being arranged on bottom plate (3), setting in steel adjustment gasket (2)
Several groups steel adjusts gasket fixing bolt (5), is provided with steel in every group of steel adjustment gasket fixing bolt (5)
It adjusts gasket fixture nut (7).
4. utilizing the erection stress corrosion testing apparatus of plane aluminium alloy wall class formation described in any one of any one of claims 1 to 33
Installation method, it is characterised in that: the specific steps of which are as follows:
S1: fixed: to adjust gasket fixture nut (7) for steel adjusting pad using steel adjustment gasket fixing bolt (5) and steel
Piece (2) is fixed on bottom plate (3)；
S2: installation: typical part (1) is mounted on bottom plate (3), and steel adjustment gasket (2) is made to protrude into type part (1) and bottom plate
(3) it between binding face, is allowed to generate fit-up gap；
S3: it tightens: tightening and force assembly bolt (4) and force assembly nut (6), forcing typical part (1) and bottom plate (3)
It is deformed under assembly bolt (4) and the pretightning force effect for forcing assembly nut (6), eliminates gap between the two to generate
Erection stress is simultaneously tested.
5. the installation method of the erection stress corrosion testing apparatus of plane aluminium alloy wall class formation according to claim 4,
It is characterized by: the web that the built-in length of steel adjustment gasket (2) of the step (2) is no more than typical part (1) is thick
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657903.XA CN110426274A (en) | 2019-07-20 | 2019-07-20 | The erection stress corrosion testing apparatus and installation method of plane aluminium alloy wall class formation |
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| CN201910657903.XA CN110426274A (en) | 2019-07-20 | 2019-07-20 | The erection stress corrosion testing apparatus and installation method of plane aluminium alloy wall class formation |
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| CN110426274A true CN110426274A (en) | 2019-11-08 |
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| CN201910657903.XA Pending CN110426274A (en) | 2019-07-20 | 2019-07-20 | The erection stress corrosion testing apparatus and installation method of plane aluminium alloy wall class formation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031873A (en) * | 2022-05-26 | 2022-09-09 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for determining assembling stress of bolt fastener connecting structure |
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| JP2007271526A (en) * | 2006-03-31 | 2007-10-18 | Ihi Corp | Cbb test method and testing tool used for method |
| CN103344488A (en) * | 2013-07-12 | 2013-10-09 | 东方电气集团东方锅炉股份有限公司 | Clamp for slow tensile stress corrosion experiment |
| CN104374640A (en) * | 2013-08-16 | 2015-02-25 | 中国科学院金属研究所 | Device for carrying out metal stress corrosion test in gap |
| CN106226393A (en) * | 2016-07-05 | 2016-12-14 | 国营芜湖机械厂 | A kind of laminate composite structural stratification damage rehabilitation method |
| CN106347687A (en) * | 2016-11-24 | 2017-01-25 | 兰州飞行控制有限责任公司 | Installation structure of control column and cockpit floor of airplane |
| CN207894546U (en) * | 2018-02-09 | 2018-09-21 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of erection stress measurement testpieces |
-
2019
- 2019-07-20 CN CN201910657903.XA patent/CN110426274A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271526A (en) * | 2006-03-31 | 2007-10-18 | Ihi Corp | Cbb test method and testing tool used for method |
| CN103344488A (en) * | 2013-07-12 | 2013-10-09 | 东方电气集团东方锅炉股份有限公司 | Clamp for slow tensile stress corrosion experiment |
| CN104374640A (en) * | 2013-08-16 | 2015-02-25 | 中国科学院金属研究所 | Device for carrying out metal stress corrosion test in gap |
| CN106226393A (en) * | 2016-07-05 | 2016-12-14 | 国营芜湖机械厂 | A kind of laminate composite structural stratification damage rehabilitation method |
| CN106347687A (en) * | 2016-11-24 | 2017-01-25 | 兰州飞行控制有限责任公司 | Installation structure of control column and cockpit floor of airplane |
| CN207894546U (en) * | 2018-02-09 | 2018-09-21 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of erection stress measurement testpieces |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031873A (en) * | 2022-05-26 | 2022-09-09 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for determining assembling stress of bolt fastener connecting structure |
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Application publication date: 20191108 |
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