CN106814086A - liner cracking analysis method - Google Patents
liner cracking analysis method Download PDFInfo
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- CN106814086A CN106814086A CN201611118074.0A CN201611118074A CN106814086A CN 106814086 A CN106814086 A CN 106814086A CN 201611118074 A CN201611118074 A CN 201611118074A CN 106814086 A CN106814086 A CN 106814086A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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Abstract
The invention provides a kind of liner cracking analysis method, mainly include：Some inner bag samples and stress generating means are provided, and apply stress to the inner bag sample, and cause that inner bag sample cracking produces the first crackle；Test obtains the cut surface character pattern of the first crackle diverse location；The inner bag for having the second crackle to be analyzed is provided, test obtains the section pattern of the second crackle diverse location, and the section pattern is compared with the cut surface character pattern, to determine the cracking original position of second crackle.Using the liner cracking analysis method, by the cross-section morphology comparative analysis to inner bag crackle, you can determine the cracking original position of inner bag and the propagation direction of crackle, it is beneficial to follow-up inner bag shaping and assembly technology structural analysis and improves.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly to a kind of liner cracking analysis method.
Background technology
At present, the liner cracking quality problems of the refrigeration plant such as refrigerator are an inevasible chronic diseases, are caused to enterprise
Substantial amounts of quality failure cost.It is understood that inner bag can ftracture under stress, but Crack Extension mechanism with it is many because
Plain related, microstructure change of the material, structure and its assembling mode and material of inner bag etc. may all cause splitting for inner bag
Line is extended in different directions.Except this, analyzed by the refrigerator product to a large amount of liner crackings, the process of liner cracking is
The cracking starting point since certain point, then crackle moment cracking is dissipated from starting point to surrounding.So judging that inner bag is opened
Original position is split, fault of construction of the analysis inner bag in the position carries out structural improvement and the stress factor for the position
It is to reduce liner cracking to carry out discriminatory analysis, improves the important channel of product percent of pass.
In consideration of it, being necessary to provide a kind of new liner cracking analysis method.
The content of the invention
It is an object of the invention to provide a kind of liner cracking analysis method, can be by the cross-section morphology pair of inner bag crackle
Than analysis, the cracking original position of inner bag and the propagation direction of crackle are determined, be beneficial to subsequent structural analysis and improve.
For achieving the above object, the invention provides a kind of liner cracking analysis method, mainly include：
Some inner bag samples are provided；
Stress generating means is provided, to apply stress to the inner bag sample, and causes that inner bag sample cracking produces the first crackle；
Test obtains the cut surface character pattern of the first crackle diverse location；
The inner bag for having the second crackle to be analyzed is provided, test obtains the section pattern of the second crackle diverse location,
And the section pattern is compared with the cut surface character pattern, to determine the cracking original position of second crackle.
As a further improvement on the present invention, choosing one has the inner bag sample of the first crackle, along first crackle
Bearing of trend equidistantly marked, produce the section sample of each marked locations and be numbered, observation obtain the inner bag
The pattern of the section sample corresponding to the first crackle difference mark position of sample；
Repeat to test, some inner bag samples each section sample of the diverse location of produced first crackle is obtained respectively
Pattern；Global alignment, analysis obtains the cut surface character pattern of first crack initiation site, wherein, first crackle rises
Beginning, position was that the stress applies position.
As a further improvement on the present invention, equidistantly marked along second crackle, produced each marked locations
Section sample to be measured and be numbered, observation obtains the section pattern of each section sample to be measured.
As a further improvement on the present invention, the distance between described first crackle adjacent marker position and the second crackle phase
The distance between adjacent mark position is equal.
As a further improvement on the present invention, there is provided metallographic microscope and/or SEM, detection obtains described
The section pattern of the pattern of the section sample of the first crackle and the section sample to be measured of the second crackle.
As a further improvement on the present invention, the section pattern of the pattern of the section sample and section sample to be measured is put
Big multiple is disposed as 500-1000 times.
As a further improvement on the present invention, there is provided high-speed photography device, the cracking start bit of first crackle is recorded
Put and propagation direction.
As a further improvement on the present invention, the inner bag sample of structural integrity is applied by the stress generating means
Plus stress, to cause that inner bag sample cracking produces first crackle.
As a further improvement on the present invention, the moulding material of some inner bag samples and inner bag to be analyzed and technique phase
Unanimously.
The beneficial effects of the invention are as follows：Liner cracking analysis method of the present invention occurs by some inner bag samples in stress
The first produced crackle under device is analyzed, tests the cut surface character pattern for obtaining the first crackle diverse location,
And then be analysed to the section pattern of diverse location on the second crackle of inner bag and compare with the cut surface character pattern, with true
The cracking original position of the fixed inner bag.Thereby, it is easy to determine the cracking original position of inner bag and the propagation direction of crackle, with
Beneficial to the shaping of follow-up inner bag and assembly technology structural analysis and improvement.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of liner cracking analysis method of the present invention；
Fig. 2 is the cut surface character pattern of the first crack initiation site in liner cracking analysis method of the present invention.
Specific embodiment
Below with reference to implementation method shown in the drawings, the present invention will be described in detail.But the implementation method is not intended to limit
The present invention, structure, method or the conversion functionally that one of ordinary skill in the art is made according to the implementation method is wrapped
Containing within the scope of the present invention.
Refer to the schematic flow sheet that Fig. 1 is liner cracking analysis method of the present invention, the liner cracking analysis method master
Comprise the following steps：
Some inner bag samples are provided；
Stress generating means is provided, to apply stress to the inner bag sample, and causes that inner bag sample cracking produces the first crackle；
Test obtains the cut surface character pattern of the first crackle diverse location；
The inner bag for having the second crackle to be analyzed is provided, test obtains the section pattern of the second crackle diverse location,
And the section pattern is compared with the cut surface character pattern, to determine the cracking original position of second crackle.
The acquisition of the cut surface character pattern is specifically included：Choosing one has the inner bag sample of the first crackle, along described
The bearing of trend of the first crackle is equidistantly marked, and is produced the section sample of each marked locations and is numbered, and observation is obtained
Take the pattern of the section sample corresponding to the first crackle difference mark position of the inner bag sample；
Repeat to test, some inner bag samples each section sample of the diverse location of produced first crackle is obtained respectively
Pattern；
Global alignment, analysis obtains the cut surface character pattern, wherein, the cut surface character pattern of the first crack initiation site is as schemed
Shown in 2.
The section pattern of the pattern of the section sample of above-mentioned first crackle and the section sample to be measured of the second crackle is adopted
Obtained with metallographic microscope and/or scanning electronic microscope observation.Also, the pattern of the section sample and section sample to be measured
The multiplication factor of section pattern be disposed as 500-1000 times.
The acquisition of the section pattern includes equidistantly being marked along second crackle, produces each marked locations
Section sample to be measured is simultaneously numbered, then obtains each section to be measured using metallographic microscope and/or scanning electronic microscope observation
The section pattern of sample.Wherein, the distance between described first crackle adjacent marker position and the second crackle adjacent marker position
The distance between it is equal, it is preferable that the distance between adjacent marker position is disposed as 1cm.
Some inner bag samples are consistent with technique with the moulding material of inner bag to be analyzed.Also, each inner bag sample
Primary stress split test is only carried out, i.e., in the first crackle forming steps, by the stress generating means to structural integrity
The inner bag sample apply stress, to cause that inner bag sample cracking produces first crackle.
Especially, the stress generating means is contacted with inner bag sample spot and the point by being in contact is imposed to inner bag sample
Stress, first crack initiation site is that the stress applies position.
In other embodiments of the present invention, a certain line style elongated area of the stress generating means to inner bag sample
Or a certain contact surface imposes stress, and then cause that inner bag sample cracking produces the first crackle, now, also need to provide high-speed photography
Device, records the cracking original position and propagation direction of first crackle.
In sum, liner cracking analysis method of the present invention is by the institute to some inner bag samples under stress generating means
The first crackle for producing is analyzed, tests the cut surface character pattern for obtaining the first crackle diverse location, and then will treat point
The section pattern for analysing diverse location on the second crackle of inner bag is compared with the cut surface character pattern, to determine the inner bag
Cracking original position.Thereby, it is easy to determine the cracking original position of inner bag and the propagation direction of crackle, is beneficial in follow-up
Courage is molded and assembly technology structural analysis and improvement.
It should be understood that, although the present specification is described in terms of embodiments, but not each implementation method only includes one
Individual independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art will should say
Used as an entirety, technical scheme in each implementation method can also be through appropriately combined, and forming those skilled in the art can for bright book
With the other embodiment for understanding.
Those listed above is a series of to be described in detail only for feasibility implementation method of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included within the scope of the present invention.
Claims (9)
1. a kind of liner cracking analysis method, it is characterised in that mainly include：
Some inner bag samples are provided；
Stress generating means is provided, to apply stress to the inner bag sample, and causes that inner bag sample cracking produces the first crackle；
Test obtains the cut surface character pattern of the first crackle diverse location；
The inner bag for having the second crackle to be analyzed is provided, test obtains the section pattern of the second crackle diverse location,
And the section pattern is compared with the cut surface character pattern, to determine the cracking original position of second crackle.
2. analysis method according to claim 1, it is characterised in that：Choosing one has the inner bag sample of the first crackle,
Equidistantly marked along the bearing of trend of first crackle, produce the section sample of each marked locations and be numbered,
Observation obtains the pattern of the section sample corresponding to the first crackle difference mark position of the inner bag sample；
Repeat to test, some inner bag samples each section sample of the diverse location of produced first crackle is obtained respectively
Pattern；Global alignment, analysis obtains the cut surface character pattern of first crack initiation site, wherein, first crackle rises
Beginning, position was that the stress applies position.
3. analysis method according to claim 2, it is characterised in that：Equidistantly marked along second crackle, made
Take the section sample to be measured of each marked locations and be numbered, observation obtains the section pattern of each section sample to be measured.
4. analysis method according to claim 3, it is characterised in that：Between the first crackle adjacent marker position away from
From equal with the distance between the second crackle adjacent marker position.
5. analysis method according to claim 3, it is characterised in that：Metallographic microscope and/or scanning electron microscopy are provided
Mirror, detection obtains the section pattern of the section sample to be measured of the pattern and the second crackle of the section sample of first crackle.
6. analysis method according to claim 5, it is characterised in that：The pattern of the section sample and section sample to be measured
The multiplication factor of section pattern be disposed as 500-1000 times.
7. analysis method according to claim 1, it is characterised in that：High-speed photography device is provided, is recorded described first and is split
The cracking original position and propagation direction of line.
8. analysis method according to claim 1, it is characterised in that：By the stress generating means to structural integrity
The inner bag sample applies stress, to cause that inner bag sample cracking produces first crackle.
9. analysis method according to claim 1, it is characterised in that：Some inner bag samples and inner bag to be analyzed into
Type material and technology is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118074.0A CN106814086B (en) | 2016-12-07 | 2016-12-07 | Inner container cracking analysis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118074.0A CN106814086B (en) | 2016-12-07 | 2016-12-07 | Inner container cracking analysis method |
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| Publication Number | Publication Date |
|---|---|
| CN106814086A true CN106814086A (en) | 2017-06-09 |
| CN106814086B CN106814086B (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611118074.0A Active CN106814086B (en) | 2016-12-07 | 2016-12-07 | Inner container cracking analysis method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4063282A (en) * | 1976-07-20 | 1977-12-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | TV fatigue crack monitoring system |
| US5531123A (en) * | 1994-11-04 | 1996-07-02 | Henkel; Daniel P. | Remote and powerless miniature fatigue monitor and method |
| CN101652649A (en) * | 2007-07-27 | 2010-02-17 | 三菱重工业株式会社 | Crack progress predicting method and program |
| CN102565072A (en) * | 2011-12-30 | 2012-07-11 | 重庆大学 | Stereoscopic vision on-line detection method for surface crack of stretched aluminum alloy plate |
| CN103733322A (en) * | 2011-06-17 | 2014-04-16 | 弗劳恩霍弗实用研究促进协会 | Method for providing a prediction model for crack detection and method for crack detection on a semiconductor structure |
| CN103884610A (en) * | 2012-12-21 | 2014-06-25 | 中国直升机设计研究所 | Determination method of composite material II-type cracking threshold value and S-N curve |
| EP2613133B1 (en) * | 2012-01-03 | 2015-03-18 | Siemens Aktiengesellschaft | Production of comparative test bodies for non-destructive testing with representative fissures regarding their orientation and test method |
| CN105122054A (en) * | 2013-04-22 | 2015-12-02 | 斯奈克玛 | Process for analysing a fracture surface of a turbomachine part |
| CN105424702A (en) * | 2015-12-10 | 2016-03-23 | 东南大学 | Method for dynamically analyzing cracking failure of carbides in high speed steels |
-
2016
- 2016-12-07 CN CN201611118074.0A patent/CN106814086B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4063282A (en) * | 1976-07-20 | 1977-12-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | TV fatigue crack monitoring system |
| US5531123A (en) * | 1994-11-04 | 1996-07-02 | Henkel; Daniel P. | Remote and powerless miniature fatigue monitor and method |
| CN101652649A (en) * | 2007-07-27 | 2010-02-17 | 三菱重工业株式会社 | Crack progress predicting method and program |
| CN103733322A (en) * | 2011-06-17 | 2014-04-16 | 弗劳恩霍弗实用研究促进协会 | Method for providing a prediction model for crack detection and method for crack detection on a semiconductor structure |
| CN102565072A (en) * | 2011-12-30 | 2012-07-11 | 重庆大学 | Stereoscopic vision on-line detection method for surface crack of stretched aluminum alloy plate |
| EP2613133B1 (en) * | 2012-01-03 | 2015-03-18 | Siemens Aktiengesellschaft | Production of comparative test bodies for non-destructive testing with representative fissures regarding their orientation and test method |
| CN103884610A (en) * | 2012-12-21 | 2014-06-25 | 中国直升机设计研究所 | Determination method of composite material II-type cracking threshold value and S-N curve |
| CN105122054A (en) * | 2013-04-22 | 2015-12-02 | 斯奈克玛 | Process for analysing a fracture surface of a turbomachine part |
| CN105424702A (en) * | 2015-12-10 | 2016-03-23 | 东南大学 | Method for dynamically analyzing cracking failure of carbides in high speed steels |
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| CN106814086B (en) | 2019-12-27 |
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