CN2704837Y - Checker for researching atmospheric corrosion - Google Patents
Checker for researching atmospheric corrosion Download PDFInfo
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- CN2704837Y CN2704837Y CN 200420032188 CN200420032188U CN2704837Y CN 2704837 Y CN2704837 Y CN 2704837Y CN 200420032188 CN200420032188 CN 200420032188 CN 200420032188 U CN200420032188 U CN 200420032188U CN 2704837 Y CN2704837 Y CN 2704837Y
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Abstract
The utility model relates to a checking technique for researching atmospheric corrosion, in particular to a checker for researching atmospheric corrosion, which is composed of a checking electrode, a reference electrode, a temperature and humidity meter, an experiment box and a constant potential meter. The checking electrode, the reference electrode and the temperature and humidity meter are equipped in the experiment box. Both ends of the reference electrode are connected with the checking electrode and the constant potential meter respectively through liquid drops and leading-wires. The insulating film is arranged between the first metal electrode and the second metal electrode of the checking electrode which installed in a sleeve pipe through resin, and the bottoms of these two metal electrodes are electrically connected with the exterior circuit through leading-wires. By making the center of the added liquid drops lie on the first metal electrode of the checking electrode, the utility model can completely simulate the anode process and cathode process of the atmospheric corrosion. The utility model can check the electrochemistry status of different liquid drops and metal electrodes, and also has the advantages of simple structure and low cost.
Description
Technical field
The utility model relates to the measuring technology of research atmospheric corrosion process, specifically a kind of proving installation of studying the atmospheric corrosion process, be specially adapted to study atmospheric corrosion under the drop takes place and evolution in the proving installation of metal electrode electrochemical behavior.
Background technology
Atmospheric corrosion is a kind of form of galvanic corrosion, and the drop that condenses on the metal surface is to bring out metal atmospheric corrosion main cause, and this moment, anodic process was carried out in the center of drop, and the edge of drop carries out cathodic process.Therefore, research metal surface droplet evaporation, processes such as cohesion and expansion take place with development mechanism significant to the influence of metal surface electrochemical state to understanding atmospheric corrosion in depth.What salt fog cabinet experimental technique commonly used related to is that a large amount of dispersant liquid drops are deposited on the system on the unitary electrode, can not apply outside polarization to this electrode, can't obtain the galvanochemistry information that the atmospheric corrosion process takes place and develops.The crystal microbalance experimental technique then is to investigate gas molecule (mainly being hydrone) at the lip-deep absorption behavior of unitary electrode, can't carry out the outside polarization equally.Atmospheric corrosion monitoring battery experimental technique only is applicable to continuous thin electrolyte film, to taking place with atmospheric corrosion and to develop closely-related single drop powerless.Although and can carry out electro-chemical test to single drop based on the experimental technique of Kelvin probe contrast electrode, its complex structure, expensive price (every about 60～700,000 yuans) have limited its widespread use.
The utility model content
In order to overcome existing experimental technique deficiency aspect the electrochemical state test of metal electrode in the atmospheric corrosion process under investigating single drop, the purpose of this utility model be to propose a kind of simple in structure, cost is low can obtain that atmospheric corrosion process under the drop takes place and evolution in the proving installation of metal electrode galvanochemistry information.
The technical solution of the utility model is: by test electrode, contrast electrode, temperature ﹠ relative humidity indicator, experimental box, potentiostat is formed, test electrode, contrast electrode, temperature ﹠ relative humidity indicator place experimental box, and described contrast electrode two ends are electrically connected with test electrode and potentiostat by drop and lead-in wire respectively, and the contact conductor of test electrode is connected to potentiostat;
Described test electrode is by first metal electrode, second metal electrode, dielectric film, resin, sleeve pipe is formed, and wherein is provided with dielectric film between first metal electrode and second metal electrode, be installed in the sleeve pipe by resin together, the bottom of two metal electrodes is electrically connected with external circuit by lead-in wire.First metal electrode is made by the tinsel of 500～50 microns of diameters; Described sleeve pipe can adopt PVC insulating material or customary insulation material; Described dielectric film can adopt polyester insulation film or polystrene insulaion membraneous material, and insulation film thickness is 100 microns; Resin extender can adopt epoxy insulation resin or polyurethane insulating material.
Described contrast electrode can be selected Ag/AgCl or saturated calomel electrode for use.Described temperature ﹠ relative humidity indicator can select for use ordinary city to sell temperature ﹠ relative humidity indicator, and selection principle is to put into experimental box easily.
Described experimental box is made by organic glass or glass, is of a size of 15 * 10 * 8cm.Potentiostat can adopt DJS type or other high resistance type potentiostat.
The utlity model has following advantage:
1. be positioned at the central authorities of drop owing to first metal electrode of test electrode in the utility model, and the diameter of first metal electrode can be little of 50 microns, so can simulate the actual corrosion behavior that metal electrode took place under the single drop fully.
2. by contrast electrode of the present utility model, can investigate the potential change of single electrode easily.
3. the galvanochemistry information that can obtain to enrich is as the corrosion potential of following the tracks of metal electrode, measure the polarization curve of metal electrode under the drop and with temperature, humidity, the variation of environmental baselines such as atmosphere.
4. applied widely, the drop of all kinds all can use this device to carry out in-situ test with different metal electrodes.
5. the utility model cost is low, and structure and polarize simple to operately also can change the polarity of first metal electrode and second metal electrode easily in the experiment.
Description of drawings
Fig. 1 is the utility model test electrode vertical view.
Fig. 2 is the utility model section of structure.
Embodiment
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
As shown in Figure 1, test electrode 1 in the utility model is by first metal electrode 11, second metal electrode 12, dielectric film 13, resin 14, sleeve pipe 15 is formed, wherein first metal electrode 11 is that 500 microns tinsel is made by diameter, the dielectric film 13 and second metal electrode 12 are annular, be positioned in the middle of the slit of first metal electrode 11 and second metal electrode 12, reinstate resin 14 with first metal electrode 11 and second metal electrode 12 1 and be encapsulated in the sleeve pipe 15, the bottom of two metal electrodes is electrically connected with external circuit by lead-in wire; The material category of first metal electrode 11 and second metal electrode 12 is selected as required.Sleeve pipe 15 is customary insulation tubing (present embodiment is the PVC insulating material); Dielectric film 13 can adopt polyester insulation film or polystrene insulaion film (present embodiment is the polyester insulating film material), and polyester insulation film thickness is 100 microns; Resin for filling 14 can adopt epoxy insulation resin or polyurethanes insulating resin (present embodiment is the epoxy insulation resin).
As shown in Figure 2, contrast electrode 2 in the utility model can be selected Ag/AgCl or saturated calomel electrode (present embodiment is the Ag/AgCl electrode) for use, and place in the Luggin capillary that fills saturated KCl solution, Luggin capillary is thin as far as possible, tube head diameter maximum can not surpass 50 microns, and guarantees to keep between Ag/AgCl electrode and the drop good electrical connection.Temperature ﹠ relative humidity indicator 3 is common commercially available temperature ﹠ relative humidity indicator.Experimental box 4 can be made by organic glass or glass, is of a size of 15 * 10 * 8cm (present embodiment is an organic glass, by the chloroform bonding).Potentiostat 5 can adopt DJS type or other high resistance type potentiostat (present embodiment is a DJS type potentiostat).
During use: with ready test electrode 1, contrast electrode 2, temperature ﹠ relative humidity indicator 3 is put into experimental box 4, according to Fig. 2 mode the contrast electrode lead-in wire is reached the lead of drawing from the metal electrode bottom and is connected with potentiostat 5, and the polarity of metal electrode can be selected as required.Drip a drop on two metal electrodes with 2 milliliters of syringes, and the center that makes drop is on first metal electrode 11, the amount of drop will guarantee with second metal electrode 12, contrast electrode 2 good electrical contact is arranged, so that measure the electrochemical behavior of metal electrode under the drop by requirement of experiment.
The utility model proposes atmospheric corrosion under the research drop take place with evolution in the electrochemical state proving installation of metal electrode, the atmospheric corrosion of utilizing this proving installation to help to understand drop is induced under takes place and the electrochemical characteristic that develops.Use this device can follow the tracks of the corrosion potential of metal electrode, control polarised direction, the size of polarized potential and polarization current, measure the polarization curve of metal electrode under the drop and with temperature, humidity, the variation of environmental baselines such as atmosphere is the strong instrument of research atmospheric corrosion process.
Embodiment 2
Difference from Example 1 is: the diameter of first metal electrode 11 changes 200 microns in the described test electrode 1; Dielectric film 13 can adopt the polystrene insulaion membraneous material; Resin 14 can adopt the polyurethane insulating material.
Embodiment 3
Difference from Example 1 is: the diameter of first metal electrode 11 changes 50 microns in the described test electrode 1; Contrast electrode 2 is used saturated calomel electrode instead.
Claims (5)
1. proving installation of studying the atmospheric corrosion process, it is characterized in that: form by test electrode (1), contrast electrode (2), temperature ﹠ relative humidity indicator (3), experimental box (4) and potentiostat (5), test electrode (1), contrast electrode (2), temperature ﹠ relative humidity indicator (3) place experimental box (4), described contrast electrode (2) two ends are electrically connected with test electrode (1) and potentiostat (5) by drop and lead-in wire respectively, and the contact conductor of test electrode (1) is connected to potentiostat (5).
2. according to the proving installation of the described research atmospheric corrosion of claim 1 process, it is characterized in that: described test electrode (1) is made up of first metal electrode (11), second metal electrode (12), dielectric film (13), resin (14), sleeve pipe (15), wherein be provided with dielectric film (13) between first metal electrode (11) and second metal electrode (12), be installed in the sleeve pipe (15) by resin (14) with dielectric film (13), the bottom of two metal electrodes is electrically connected with external circuit by lead-in wire.
3. according to the proving installation of claim 1 or 2 described research atmospheric corrosion processes, it is characterized in that: the diameter of first metal electrode (11) can be 500～50 microns in the described test electrode 1.
4. according to the proving installation of claim 1 or 2 described research atmospheric corrosion processes, it is characterized in that: dielectric film (13) can adopt polyester insulation film or polystrene insulaion membraneous material in the described test electrode (1); Resin (14) can adopt epoxy insulation resin or polyurethane insulating material; Sleeve pipe (15) can adopt PVC insulating material or customary insulation material.
5. according to the proving installation of the described research atmospheric corrosion of claim 1 process, it is characterized in that: described contrast electrode (2) can adopt Ag/AgCl electrode and saturated calomel electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032188 CN2704837Y (en) | 2004-06-23 | 2004-06-23 | Checker for researching atmospheric corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032188 CN2704837Y (en) | 2004-06-23 | 2004-06-23 | Checker for researching atmospheric corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2704837Y true CN2704837Y (en) | 2005-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420032188 Expired - Fee Related CN2704837Y (en) | 2004-06-23 | 2004-06-23 | Checker for researching atmospheric corrosion |
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| CN (1) | CN2704837Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191765B (en) * | 2006-12-01 | 2011-09-21 | 中国科学院海洋研究所 | Marine atmosphere eroded environment monitoring sensor and its monitoring method |
| CN104090172A (en) * | 2014-07-25 | 2014-10-08 | 中国石油大学(华东) | Thin liquid film local electrochemical testing system and method in CO2 oxygen-free environment |
| CN104297145A (en) * | 2013-07-16 | 2015-01-21 | 中国科学院金属研究所 | Electrochemical test method for researching influence of aerosol on atmosphere corrosion of metal material |
| CN105004660A (en) * | 2015-08-13 | 2015-10-28 | 中国石油化工股份有限公司 | Electrode device for in-situ study of atmospheric corrosion process under liquid drops |
| CN105004770A (en) * | 2015-07-02 | 2015-10-28 | 国家电网公司 | Electrochemical sensor used for atmosphere corrosive monitoring, and application method thereof |
| CN105424583A (en) * | 2015-11-06 | 2016-03-23 | 南京钢铁股份有限公司 | Method for evaluating corrosion resistance of welded joint based on potential testing technology |
| CN106468651A (en) * | 2016-09-22 | 2017-03-01 | 国网山东省电力公司电力科学研究院 | A kind of atmospheric corrosiveness on-line monitoring system and its method |
| CN106769835A (en) * | 2017-02-15 | 2017-05-31 | 广州供电局有限公司 | Galvanized steel atmospheric corrosion Behavior modeling monitoring device and its method |
| CN108226027A (en) * | 2017-12-13 | 2018-06-29 | 中国特种飞行器研究所 | Coating aging failure evaluation method under a kind of air thin liquid film environment |
| CN109612920A (en) * | 2018-12-13 | 2019-04-12 | 国网山东省电力公司电力科学研究院 | A kind of metal component atmospheric corrosion monitoring method |
| EP3570006A3 (en) * | 2018-05-16 | 2019-12-18 | Mazda Motor Corporation | Humidity sensor and corrosion test method using the same |
| CN111788470A (en) * | 2017-10-12 | 2020-10-16 | 集奥布鲁克有限公司 | Monitoring device and method for monitoring corrosion of wire mesh |
-
2004
- 2004-06-23 CN CN 200420032188 patent/CN2704837Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191765B (en) * | 2006-12-01 | 2011-09-21 | 中国科学院海洋研究所 | Marine atmosphere eroded environment monitoring sensor and its monitoring method |
| CN104297145A (en) * | 2013-07-16 | 2015-01-21 | 中国科学院金属研究所 | Electrochemical test method for researching influence of aerosol on atmosphere corrosion of metal material |
| CN104090172A (en) * | 2014-07-25 | 2014-10-08 | 中国石油大学(华东) | Thin liquid film local electrochemical testing system and method in CO2 oxygen-free environment |
| CN104090172B (en) * | 2014-07-25 | 2016-10-26 | 中国石油大学(华东) | A kind of CO2the Local electrochemical test system of thin liquid film under oxygen-free environment |
| CN105004770A (en) * | 2015-07-02 | 2015-10-28 | 国家电网公司 | Electrochemical sensor used for atmosphere corrosive monitoring, and application method thereof |
| CN105004660B (en) * | 2015-08-13 | 2017-10-13 | 中国石油化工股份有限公司青岛安全工程研究院 | The electrode assembly of atmospheric corrosion process under on-spot study drop |
| CN105004660A (en) * | 2015-08-13 | 2015-10-28 | 中国石油化工股份有限公司 | Electrode device for in-situ study of atmospheric corrosion process under liquid drops |
| CN105424583A (en) * | 2015-11-06 | 2016-03-23 | 南京钢铁股份有限公司 | Method for evaluating corrosion resistance of welded joint based on potential testing technology |
| CN106468651A (en) * | 2016-09-22 | 2017-03-01 | 国网山东省电力公司电力科学研究院 | A kind of atmospheric corrosiveness on-line monitoring system and its method |
| CN106769835A (en) * | 2017-02-15 | 2017-05-31 | 广州供电局有限公司 | Galvanized steel atmospheric corrosion Behavior modeling monitoring device and its method |
| CN106769835B (en) * | 2017-02-15 | 2019-06-18 | 广州供电局有限公司 | Galvanized steel atmospheric corrosion Behavior modeling monitoring device and its method |
| CN111788470A (en) * | 2017-10-12 | 2020-10-16 | 集奥布鲁克有限公司 | Monitoring device and method for monitoring corrosion of wire mesh |
| CN111788470B (en) * | 2017-10-12 | 2023-11-14 | 集奥布鲁克有限公司 | Monitoring device and method for monitoring corrosion of wire mesh |
| CN108226027A (en) * | 2017-12-13 | 2018-06-29 | 中国特种飞行器研究所 | Coating aging failure evaluation method under a kind of air thin liquid film environment |
| EP3570006A3 (en) * | 2018-05-16 | 2019-12-18 | Mazda Motor Corporation | Humidity sensor and corrosion test method using the same |
| CN109612920A (en) * | 2018-12-13 | 2019-04-12 | 国网山东省电力公司电力科学研究院 | A kind of metal component atmospheric corrosion monitoring method |
| CN109612920B (en) * | 2018-12-13 | 2021-07-09 | 国网山东省电力公司电力科学研究院 | Atmospheric corrosion monitoring method for metal component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |