CN202433339U - Working electrode - Google Patents
Working electrode Download PDFInfo
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- CN202433339U CN202433339U CN2012200380488U CN201220038048U CN202433339U CN 202433339 U CN202433339 U CN 202433339U CN 2012200380488 U CN2012200380488 U CN 2012200380488U CN 201220038048 U CN201220038048 U CN 201220038048U CN 202433339 U CN202433339 U CN 202433339U
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- working electrode
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- working surface
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Abstract
The utility model discloses a working electrode which comprises a test sample, a sealing part and a lead. A non-working surface of the test sample is connected with the sealing part and the lead. According to the working electrode, the non-working surface of the test sample is sealed completely, so that contact between the non-working surface of the test sample and a reaction medium is avoided, and electrochemical tests are more accurate.
Description
Technical field
The utility model relates to the material electrochemical performance field tests, particularly a kind of working electrode.
Background technology
The chemical property of material is one of its important performance indexes, can carry out the material corrosion electrochemical property test at CORRTEST M273A type electrochemical workstation.The existing working electrode of M237A electrochemical workstation adopts screw rotating bezel shell type interconnection technique to be made.
Screw rotating bezel shell type connection electrode, its material of main part is rigid plastic or polytetrafluoroethylplastic plastic.Manufacturing process is following: use above-mentioned materials processing to become the female silk end and the sealing bonnet of cylindrical shape.(area is 1cm to be processed to form the circular port that the sample workplace contacts with medium at an end of female silk end
2), the above-mentioned circular port diameter of the female silk boring ratio that is processed to form at the other end of female silk end simultaneously is big slightly, and internal thread is processed in a mother hole.The diameter of the sample of toroidal is identical with the inner bolt hole in female silk hole of female silk end.The public silk end diameter of the cylindrical shape of processing with metal material is supporting with female silk hole with its external thread, and is connected with external wire, simultaneously public silk is held and lead is nested on the sealing bonnet of processing with above-mentioned plastics.Before the electro-chemical test; Elder generation is with a mirror polish of the sample of thin rounded flakes shape, and then that the sample polishing is good workplace is in female silk hole, and the public affairs silk is held the also rotation of non-working surface of aiming at the sample that places female silk aperture then; Sample is pushed in female silk hole of female silk end; Suitably screwing gets final product, and at this moment female silk end contacts with the sealing bonnet fully, does not almost have the slit.Connect the line at last on the external circuit and can carry out electro-chemical test.
Because the structure of screw rotating bezel shell type connection electrode and the non-working surface that connected mode causes sample to be tested are poorly sealed; Thereby medium is flowed in sample side and the nested thread pitch; Particularly repeatedly use its gap, back to increase gradually; Caused the increase of electrode effective surface, made the electrode area of measuring in the result of calculation increase, produced than mistake.
The utility model content
The utility model technical matters to be solved provides a kind of working electrode, and the non-working surface that solves this working electrode is poorly sealed, cause the big problem of corresponding electro-chemical test error.
For solving the problems of the technologies described above, the utility model provides a kind of working electrode, comprises sample, seal and lead; The non-working surface of said sample is connected with said seal; The non-working surface of said sample is connected with lead.
Further, said seal comprises bisphenol A type epoxy resin.
Further, comprise hollow tubular; Said hollow tubular is connected with said seal.
Further, the diameter of said hollow tubular be 20mm to 25mm, long for 25mm arrives 40mm, thickness is that 0.5mm is to 1.5mm.
Further, said lead is made of copper, and its sectional area is greater than 1mm
2
The working electrode that the utility model provides seals the non-working surface of sample fully, avoids the non-working surface of sample to contact with reaction medium, makes electro-chemical test more accurate, thereby eliminates the error of bringing therefrom.
Description of drawings
The profile structural representation of the working electrode that Fig. 1 provides for the utility model embodiment;
The square section structural representation of the working electrode that Fig. 2 provides for the utility model embodiment.
Embodiment
Referring to Fig. 1 and Fig. 2, the working electrode that the utility model embodiment provides comprises sample 1, seal 2, lead 3 and hollow tubular 4.The sample 1 of thin rounded flakes shape is positioned at an end of the hollow tubular 4 that is made of plastics, and the workplace of sample 1 outwardly.Wherein, the diameter of plastic hollow pipe 4 is 22mm, and long is 30mm, and thickness is 1mm.In addition, non-working surface relative and copper conductor 3 welding with the workplace of sample 1, and the sectional area of copper conductor 3 is 2mm
2Simultaneously, seal 2 is made up of the potpourri that bisphenol A type epoxy resin and tackifier mix, and this potpourri is filled between sample 1 and the hollow tubular 4, thereby makes the non-working surface of sample and outside keep isolated.
The working electrode that adopts the utility model to provide has following advantage:
(1) the specimen electrode electric current is steady, and fluctuation is less than 0.001mA;
(2) Electrochemical results favorable reproducibility, material corrosion potential value differs less than 15mV;
(3) sample non-working surface good seal;
(4) simple for production, material requested is cheap and be easy to get.
It should be noted last that; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to instance the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (5)
1. a working electrode is characterized in that, comprises sample, seal and lead; The non-working surface of said sample is connected with said seal; The non-working surface of said sample is connected with said lead.
2. working electrode as claimed in claim 1 is characterized in that said seal comprises bisphenol A type epoxy resin.
3. according to claim 1 or claim 2 working electrode is characterized in that, comprises hollow tubular; Said hollow tubular is connected with said seal.
4. working electrode as claimed in claim 3 is characterized in that, the diameter of said hollow tubular be 20 mm to 25mm, length be 25 mm to 40mm, thickness is that 0.5mm is to 1.5mm.
5. working electrode as claimed in claim 1 is characterized in that said lead is made of copper, and its sectional area is greater than 1mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200380488U CN202433339U (en) | 2012-02-07 | 2012-02-07 | Working electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200380488U CN202433339U (en) | 2012-02-07 | 2012-02-07 | Working electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433339U true CN202433339U (en) | 2012-09-12 |
Family
ID=46782778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200380488U Expired - Fee Related CN202433339U (en) | 2012-02-07 | 2012-02-07 | Working electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792692A (en) * | 2015-04-09 | 2015-07-22 | 中国民航大学 | Corrosive working electrode |
| CN108333234A (en) * | 2018-04-20 | 2018-07-27 | 河南科技大学 | A kind of use for electrochemical tests film sample and preparation method thereof |
-
2012
- 2012-02-07 CN CN2012200380488U patent/CN202433339U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792692A (en) * | 2015-04-09 | 2015-07-22 | 中国民航大学 | Corrosive working electrode |
| CN108333234A (en) * | 2018-04-20 | 2018-07-27 | 河南科技大学 | A kind of use for electrochemical tests film sample and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20210207 |