CN206330873U - A kind of metal pitting test device - Google Patents
A kind of metal pitting test device Download PDFInfo
- Publication number
- CN206330873U CN206330873U CN201621388423.6U CN201621388423U CN206330873U CN 206330873 U CN206330873 U CN 206330873U CN 201621388423 U CN201621388423 U CN 201621388423U CN 206330873 U CN206330873 U CN 206330873U
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- China
- Prior art keywords
- glass tube
- test specimen
- glass
- cover plate
- metal
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Abstract
A kind of metal pitting test device, including：Bottom test specimen（1）, glass tube（2）, cover plate（3）, adhesive（4）.Bottom test specimen is one piece of metal master tensile test specimen, plate face central marker corrosion area；Glass tube is vertically disposed on the test specimen plate face central marker corrosion area position of bottom；The lower edge of glass tube is made together with the test specimen strong bond of bottom by adhesive；Cover plate is one block of square glass plate, is capped in glass tube upper end, to realize that solution is isolated from the outside in glass tube.The utility model has the advantage of：The pitting test of each metalloid material can be realized, and glass tube and cover plate can be recycled, experimental rig is simple for production, in order to meet the environmental requirement of experiment, it is unlikely to experimental rig is destroyed in corrosion process, glass tube, the making material of cover plate use quartz glass, and their geometry, dimensional accuracy, uniformity, stability and surface smoothness are satisfied by test requirements document.
Description
Technical field
The utility model is related to a kind of metal pitting test device, belongs to technical field of metal anti-corrosion.
Background technology
In Practical Project, corrosion damage occurs for the material surface such as metal, so as to cause structural damage, causes showing for accident
As if it is of common occurrence, metal damage development in corrosive environment is also a big corrosion research emphasis.Spot corrosion is a kind of disguised
By force, destructive greatly form of partial corrosion, is to reduce one of important mechanism of material fatigue life, stainless steel containing chlorine from
It is easy to occur pitting corrosion in son and the environment of some other specific ion；When there is hole in surface scale or rusty scale,
Spot corrosion can also occur in the water containing chlorion for carbon steel；Can also occur a corruption for the aluminum alloy surface in aviation field
Erosion；In addition, there is hole or when other reasons cause base material exposed in the protective coating of metal material surface, then exposed matrix
Can occur spot corrosion.But up to the present, surface corrosion damage during spot corrosion occurs in corrosive environment for metal material for the country
The experimental study of evolutionary process is also very rare.2005, the experiment about aluminium alloy spot corrosion was done by Northwestern Polytechnical University etc., its
The pitting test device used in process of the test, by respectively connecting one block of heavy sheet glass in glass tube lower end periphery and test specimen lower end
Plate, and lower glass plate is bolted, glass tube is fixed on surface of test piece to realize, does not cause that device is simple
Change, and make it that experimental rig cost is very high.Other one big shortcoming of this device is exactly that its use scope is restricted, and one
As be only used for the situation that corrosion area and glass tube outer dia are fixed, be not suitable for other examinations for changing corrosion area areas
In testing.Other scholars also once made similar pitting test device, but those experimental rigs similarly have many deficiencies
Place, the complex manufacturing technology for example having, some uses are limited in scope.
Therefore say these loading devices be all difficult in Practical Project or experiment it is universal promote the use of, this is also current
The complicated and costly main cause of pitting test process, thus it is unfavorable for the further investigation of metal material spot corrosion.
The content of the invention
The purpose of this utility model is that, according to the deficiency of existing metal material pitting test, the utility model provides one
Metal pitting test device is planted, the pitting test of various metal materials can be carried out, and it is economical and simple effective.
The technical solution of the utility model is, a kind of metal pitting test device, including bottom test specimen, glass tube, cover plate
And adhesive.
The bottom test specimen is one piece of metal master tensile test specimen, the bottom test specimen plate face central marker corrosion area；
The glass tube is vertically disposed on the bottom test specimen plate face central marker corrosion area position；Glass tube is made by adhesive
Lower edge together with the test specimen strong bond of bottom；Cover plate is one block of square or circular glass plate, is capped on glass tube
End, to realize that solution is isolated from the outside in glass tube.
The bottom Specimen Shape is dog hone lamella shape, length L, end portion width A, intermediate width B, transition region circular arc half
Footpath D and thickness of slab h can be processed according to the requirement of different specification Plays sample dimensions to different plates.
The glass tube is hollow circular-tube, pipe external diameter 18-20mm, internal diameter 16-18mm, high 150-300mm, up and down two
End polishes flat.
The cover plate is quartz glass plate, and shape can be square or circle, and area is slightly larger than glass tube cross-sectional area
Can, thickness is 3-5mm.
The beneficial effects of the utility model are that the utility model realizes the pitting test of each metalloid material, and
Glass tube and cover plate can be recycled, and experimental rig is simple for production, in order to meet the environmental requirement of experiment, be unlikely to make experiment
Device is destroyed in corrosion process, and glass tube, the making material of cover plate use quartz glass, and their geometric form
Shape, dimensional accuracy, uniformity, stability and surface smoothness are satisfied by test requirements document.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure, 1 is bottom test specimen；2 be glass tube；3 be cover plate；4 be adhesive.
Embodiment
As shown in figure 1, the pitting test device of the utility model embodiment includes bottom test specimen 1, glass tube 2, the and of cover plate 3
Adhesive 4.
The bottom test specimen 1 is one piece of metal master tensile test specimen, the plate face central marker corrosion region of bottom test specimen 1
Domain；The glass tube 2 is vertically disposed on the bottom test specimen plate face central marker corrosion area position；Made by adhesive 4
The lower edge of glass tube 2 is together with the test specimen strong bond of bottom；Cover plate 3 is one block of square glass plate, is capped in glass tube 2
Upper end, to realize that solution is isolated from the outside in glass tube 2.
When carrying out metal pitting test, measured first with survey tool and mark the surface corrosion area of bottom test specimen 1
Domain, a small amount of adhesive is smeared in the lower edge of glass tube 2, it is tentatively fixed on behind the test specimen mark position of bottom, in adhesive portion
A layer of adhesive is smeared around position, covers and placed after cover plate 3 to be bonded dose of hardening of a period of time, inject and adjust in advance into glass tube
The solution tried, covers cover plate again, and finally experimental rig is placed in corresponding experimental enviroment.
Bottom Specimen Shape be dog hone lamella shape, length L, end portion width A, intermediate width B, transition region arc radius D and
Thickness of slab h can be processed according to the requirement of different specification Plays sample dimensions to different plates.
Glass tube is hollow circular-tube, pipe external diameter 18-20mm, internal diameter 16-18mm, high 150-300mm, upper and lower ends portion
Polish flat.
Cover plate is quartz glass plate, and shape can be square or circle, and area is slightly larger than glass tube cross-sectional area, thick
Spend for 3-5mm.
In summary, the present utility model can be realized carries out pitting test research to each metalloid material.Test specimen and
Glass tube is connected by adhesive, convenient dismounting, effectively improves the efficiency of experiment.And glass tube, cover plate are from quartzy glass
Glass, not because test temperature changes and ruptures, it is ensured that pitting test device can put into experiment repeatedly, with higher recycling
Value.Experimental study coordinates checking and the theory analysis of finite element software, you can determine the keys such as such material corrosion injury tolerance
Parameter, guidance is provided for Practical Project.
Claims (4)
1. a kind of metal pitting test device, it is characterised in that described device includes bottom test specimen, glass tube, cover plate and bonding
Agent；The bottom test specimen is one piece of metal master tensile test specimen, the bottom test specimen plate face central marker corrosion area；The glass
Glass pipe is vertically disposed on the bottom test specimen plate face central marker corrosion area position；Make the lower end of glass tube by adhesive
Edge is together with the test specimen strong bond of bottom；Cover plate is one block of square glass plate, is capped in glass tube upper end, to realize glass
Solution is isolated from the outside in pipe.
2. a kind of metal pitting test device according to claim 1, it is characterised in that the bottom test specimen is middle narrow by two
The platy structure of the head breadth, length L, end portion width A, intermediate width B, transition region arc radius D and thickness of slab h can be according to different specifications
The requirement of Plays sample dimensions is processed to different plates.
3. a kind of metal pitting test device according to claim 1, it is characterised in that the glass tube is hollow circular-tube,
Pipe external diameter 18-20mm, internal diameter 16-18mm, high 150-300mm, upper and lower ends portion polishes flat.
4. a kind of metal pitting test device according to claim 1, it is characterised in that the cover plate is quartz glass plate,
Shape can be square or circle, and area is more than glass tube cross-sectional area, and thickness is 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621388423.6U CN206330873U (en) | 2016-12-18 | 2016-12-18 | A kind of metal pitting test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621388423.6U CN206330873U (en) | 2016-12-18 | 2016-12-18 | A kind of metal pitting test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206330873U true CN206330873U (en) | 2017-07-14 |
Family
ID=59290212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621388423.6U Expired - Fee Related CN206330873U (en) | 2016-12-18 | 2016-12-18 | A kind of metal pitting test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206330873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109918750A (en) * | 2019-02-26 | 2019-06-21 | 安徽理工大学 | A kind of full-automatic modeling method of the erosion of the accurate control points on H profile steel column range |
-
2016
- 2016-12-18 CN CN201621388423.6U patent/CN206330873U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109918750A (en) * | 2019-02-26 | 2019-06-21 | 安徽理工大学 | A kind of full-automatic modeling method of the erosion of the accurate control points on H profile steel column range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170714 Termination date: 20171218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |