CN105973795B - A kind of simple combination electrode of Experiment in Erosive Electrochemistry - Google Patents
A kind of simple combination electrode of Experiment in Erosive Electrochemistry Download PDFInfo
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- CN105973795B CN105973795B CN201610440803.8A CN201610440803A CN105973795B CN 105973795 B CN105973795 B CN 105973795B CN 201610440803 A CN201610440803 A CN 201610440803A CN 105973795 B CN105973795 B CN 105973795B
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- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
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Abstract
The present invention is the simple combination electrode of an Experiment in Erosive Electrochemistry, it include: that reference electrode slot is constituted by fixing plug, solution tank, reference electrode, outer salt bridge, the corresponding solution of reference electrode has all been filled in solution tank and outer salt bridge, outer salt bridge is fixed in fixed plug, and reference electrode is inserted into outer salt bridge；Salt bridge one end is inserted into reference electrode slot, and outside other end extraction electrode slot, the current potential of reference electrode is output in electrolytic cell；Auxiliary electrode is fixed on the side of salt bridge, and the angle of the large surface of auxiliary electrode is adjustable according to the angle position of working electrode test surfaces.This combination electrode unifies two electrode effects, and conventional efficient can be improved, and structural stability is strong, and effect multiplicity is widely used, and can carry out the corrosion electrochemistry test of multiple types working electrode.
Description
Technical field
The present invention relates to material corrosion electrochemical fields, and particularly a kind of easy development material corrosion performance detects
Combination electrode when electrochemistry experiment.
Background technique
When electrochemistry experiment in terms of development material corrosion resistance is tested, basic need has just in a cell
It is three-electrode system, i.e. working electrode, auxiliary electrode and reference electrode.Relative position in electrolytic cell between three electrodes and in reality
Fixing situation during testing influences whether the accuracy of corrosion experiment result.When carrying out electrochemistry experiment, usually by this
Three electrodes are separately fixed in electrolytic cell, this there is a problem that certain: needing successively to fix three electrodes before 1. testing, in step
Suddenly upper comparatively laborious, working efficiency is low；2. electrode is directly installed in plain electrolysers, it is difficult to it reinforces, it is electric during the experiment
The movement of the variation of pole position, especially reference electrode relative to working electrode position will affect the accuracy of experimental result.It is existing
In technology, it not to be used for the combination electrode when electrochemistry experiment of material corrosion performance detection.
Summary of the invention
The technical problem to be solved by the present invention is to the shortcomings that overcoming the prior art, provide a kind of Experiment in Erosive Electrochemistry
With simple combination electrode, reference electrode and auxiliary electrode production are become into a combination electrode with pedestal, in corrosion electrochemistry
Working electrode only need to be fixed before experiment, experimental procedure is reduced, effectively increases conventional efficient；Moreover, the combination electrode
Simple for production, structural stability is strong, can be directly placed into electrolytic cell, does not need additional fixation, and micro movement will not occur, has
Effect has ensured the accuracy of experimental result.
The technical solution that the present invention solves the above technical problem is:
A kind of simple combination electrode of Experiment in Erosive Electrochemistry, comprising:
One reference electrode slot comprising solution tank, fixed plug, outer salt bridge and reference electrode, solution tank function simultaneously as multiple
Composite electrode pedestal, outer salt bridge are tubular structure, and it is corresponding molten that the reference electrode institute is all filled in solution tank and outer salt bridge
Liquid, fixed plug are fixed in the opening of solution tank, and outer salt bridge passes through fixed its lower end of filling in and is located in the solution in the solution tank,
Reference electrode is inserted into outer salt bridge, it is ensured that and reference electrode is not polluted, and retracts and also facilitates, the shape of solution tank and fixed plug
It is not particularly limited with material, as long as shape matches when guaranteeing to combine between the two；
One salt bridge, the shape of salt bridge are U-tube shape, and one end passes through fixed plug and is located at the solution tank of reference electrode slot
Interior, the end of the other end is in upright spike tube or curved spike tube and electrolytic cell in experiment positioned at setting, upright
Spike tube or curved spike tube are vertical with working electrode test surfaces to be measured, with specific reference to working electrode test surfaces to be measured
Angle position determine；
One auxiliary electrode, auxiliary electrode are fixed on the side of salt bridge, and auxiliary electrode and working electrode to be measured test table
Face is parallel, carries out parallel, vertical or other angles placement with specific reference to the angle position of working electrode test surfaces to be measured.
The technical solution that the present invention further limits is:
The simple combination electrode of Experiment in Erosive Electrochemistry above-mentioned, is additionally provided with protector, and reference electricity is filled in protector
In extremely corresponding solution, when combination electrode is on the shelf, salt bridge is located in the insertion of the end outside reference electrode slot protector
Solution in store.
The simple combination electrode of Experiment in Erosive Electrochemistry above-mentioned, auxiliary electrode are fixed by the way of gluing or binding
In the side of salt bridge.
The shape of the simple combination electrode of Experiment in Erosive Electrochemistry above-mentioned, solution tank and fixed plug is not particularly limited,
As long as shape matches when guaranteeing to combine between the two；Solution corresponding to its material and reference electrode is at inertia；The material of salt bridge
Material is insulator, and with solution corresponding to the reference electrode at inertia.
The beneficial effects of the present invention are:
(1) two electrode effects unification, can be improved conventional efficient: combination electrode of the present invention is by the reference of former electrochemistry experiment
Electrode and auxiliary electrode are combined into one, and number of electrodes becomes two by three, only need to be by combination electrode and work before Experiment in Erosive Electrochemistry
It is fixed in a cell to make electrodes, reduces experimental procedure, effectively increases conventional efficient.
(2) structural stability is strong, and the accuracy of experiment can be improved: reference electrode slot of combination electrode of the present invention conduct itself
Pedestal, stability is just high, need to only be supported in experiment with it, will be in salt bridge and auxiliary electrode end insertion electrolytic cell.
(3) effect multiplicity, be widely used: the terminal end shape of the salt bridge of combination electrode of the present invention can be according to working electrode
The angle of test surfaces is designed into the bend pipe of different angle, and the surface angle of auxiliary electrode can also change, and can open
Open up the corrosion electrochemistry test of multiple types working electrode.
(4) simple structure, detachability are strong: combination electrode of the invention forms for Simple assembled, when this combination electrode is idle
When not used, reference electrode and auxiliary electrode can be dismantled use respectively, its respective original function will not be lost.
Detailed description of the invention
The structural schematic diagram of Fig. 1 embodiment of the present invention 1.
The structural schematic diagram of Fig. 2 embodiment of the present invention 2.
Fig. 3 is structural schematic diagram when combination electrode of the present invention is on the shelf.
Specific embodiment
Embodiment 1
The present embodiment is a kind of simple combination electrode of Experiment in Erosive Electrochemistry, and structure is as shown in Figure 1, due to electrochemistry reality
The difference of the shape of working electrode to be measured, specification and chemical characteristic is tested, the position of the best test surfaces of test is also different.This
A kind of simple combination electrode for Experiment in Erosive Electrochemistry that embodiment provides, it is suitable for the position of working electrode test surfaces
The case where for horizontal position.
The combination electrode is made of reference electrode slot, salt bridge, 6 three parts of auxiliary electrode.It is wherein risen in reference electrode slot steady
Qualitative effect be solution tank 1, the solution in solution tank 1 is corresponding solution (such as calomel reference electrode pair of reference electrode
What is answered is Klorvess Liquid, and corresponding copper sulfate reference electrode is copper-bath etc.), the upper end is by fixing 2 closing of plug.Gu
Surely hole there are two driveing on plug 2: outer salt bridge 3 passes through 2 one of holes of fixed plug, and salt bridge passes through another hole, they are soaked
Enter into solution.Solution in outer salt bridge 3 is also the corresponding solution of reference electrode, is inserted into reference electrode 4 thereon.
Since working electrode is horizontal working electrode 8 to be measured, salt bridge selection is straight tube salt bridge 5, the spike tube of straight tube salt bridge 5
End vertical against horizontal working electrode 8 to be measured.The effect of straight tube salt bridge 5 is to be output to the current potential equivalence of reference electrode 4
In electrolytic cell 9, play the role of reference electrode 4.Auxiliary electrode 6 is fixed on the outer wall of straight tube salt bridge 5 with the mode of gluing,
6 horizontal position of auxiliary electrode is put when gluing, it is parallel with 8 position of working electrode.In this way, auxiliary electrode 6 and straight tube salt bridge 5
Tip is the part for constituting this combination electrode and directly participating in experiment.
When experiment, level working electrode 8 to be measured, combination electrode are directly participated in part (auxiliary electrode 6 and the straight tube of experiment
The tip of salt bridge 5) it is put into electrolytic cell 9, two electrodes are combined into one, and reduce experimental procedure, effectively increase experiment effect
Rate.The solution of experiment, which is poured into, afterwards can carry out experiment in electrolytic cell 9.At this point, solution tank 1 is to be placed in 9 outside of electrolytic cell
, play the role of supporting and fixing straight tube salt bridge 5 and auxiliary electrode 6.After the position of solution tank 1 is fixed, straight tube salt
The position of bridge 5 and auxiliary electrode 6 also just secures, and stability is fine, and micro movement will not occur during the experiment.
Embodiment 2
The present embodiment is a kind of simple combination electrode of Experiment in Erosive Electrochemistry, and structure is as shown in Fig. 2, it is suitable for work
The case where position for making electrode test surface is stand up position.
The combination electrode is made of reference electrode slot, salt bridge, 6 three parts of auxiliary electrode.The part of reference electrode slot and reality
It is identical for applying example 1.Since working electrode is upright working electrode 10 to be measured, salt bridge selection is bend pipe salt bridge 11, bend pipe salt
The opposite upright working electrode 10 to be measured of the end vertical of the spike tube of bridge 11.The effect of bend pipe salt bridge 11 is also by reference electrode 4
Current potential equivalence is output in electrolytic cell 9, plays the role of reference electrode 4.Auxiliary electrode 6 is fixed on bend pipe with the mode of gluing
On the outer wall of salt bridge 11, when gluing, puts 6 stand up position of auxiliary electrode, parallel with 10 position of working electrode.
When experiment, upright working electrode 10 to be measured, combination electrode are directly participated in the part (auxiliary electrode 6 and curved of experiment
The tip of pipe salt bridge 11) be put into electrolytic cell 9, after the solution of experiment is poured into can carry out experiment in electrolytic cell 9.
Structure when combination electrode of the present invention is on the shelf fills ginseng as shown in figure 3, be additionally provided with protector 7 in protector 7
In solution more corresponding than electrode, when combination electrode is on the shelf, salt bridge is located at the insertion protection of the end outside reference electrode slot
It is stored in solution in slot.
In addition to the typical case of embodiment 1 and embodiment 2, the test surfaces position of working electrode is if horizontal and upright outer
Other angles, the angle of auxiliary electrode 6 can also change therewith, it is ensured that the angle of auxiliary electrode 6 and the angle of working electrode
Degree is parallel.And the angle of salt bridge spike tube part can also be designed to corresponding angle, as long as ensureing the angle with working electrode
Degree is vertical.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (4)
1. a kind of simple combination electrode of Experiment in Erosive Electrochemistry, it is characterised in that: include:
One reference electrode slot comprising solution tank (1), fixed plug (2), outer salt bridge (3) and reference electrode (4), the solution
Slot (1) functions simultaneously as combination electrode pedestal, and the outer salt bridge (3) is tubular structure, in the solution tank (1) and outer salt bridge (3)
In all fill the corresponding solution of the reference electrode (4) institute, the fixed plug (2) is fixed on the opening of the solution tank (1)
On, the outer salt bridge (3) passes through the fixed plug (2) and its lower end is located in the solution in the solution tank (1), the reference
Electrode (4) is inserted into the outer salt bridge (3)；
Another second salt bridge (5), the shape of second salt bridge (5) are U-tube shape, and one end passes through the fixed plug (2)
And be located in the solution tank (1) of the reference electrode slot, the end of the other end be upright spike tube or curved spike tube and
When experiment in the electrolytic cell of setting, upright spike tube or curved spike tube and working electrode test surfaces to be measured are hung down
Directly, it is determined with specific reference to the angle position of working electrode test surfaces to be measured；
One auxiliary electrode (6), the auxiliary electrode (6) are fixed on the side of second salt bridge (5), the auxiliary electrode
(6) parallel with working electrode test surfaces to be measured, it is carried out with specific reference to the angle position of working electrode test surfaces to be measured
In parallel, vertically or other angles place.
2. the simple combination electrode of Experiment in Erosive Electrochemistry as described in claim 1, it is characterised in that: be additionally provided with protector
(7), the corresponding solution of reference electrode is filled in the protector (7), when combination electrode is on the shelf, second salt bridge
(5) it is located in the solution that the end outside the reference electrode slot is inserted into the protector (7) and stores.
3. the simple combination electrode of Experiment in Erosive Electrochemistry as described in claim 1, it is characterised in that: the auxiliary electrode
(6) side of second salt bridge (5) is fixed on by the way of gluing or binding.
4. the simple combination electrode of Experiment in Erosive Electrochemistry as described in claim 1, it is characterised in that: the solution tank (1)
With solution corresponding to the material of fixed plug (2) and the reference electrode (4) at inertia；The material of second salt bridge (5)
For insulator, and with solution corresponding to the reference electrode (4) at inertia.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610440803.8A CN105973795B (en) | 2016-06-17 | 2016-06-17 | A kind of simple combination electrode of Experiment in Erosive Electrochemistry |
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| CN201610440803.8A CN105973795B (en) | 2016-06-17 | 2016-06-17 | A kind of simple combination electrode of Experiment in Erosive Electrochemistry |
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| CN105973795B true CN105973795B (en) | 2019-01-18 |
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| CN113945509A (en) * | 2021-11-01 | 2022-01-18 | 西安稀有金属材料研究院有限公司 | Device and method for performing electrochemical test in high-temperature liquid-phase corrosion environment |
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| US4789434A (en) * | 1987-10-09 | 1988-12-06 | The United States Of America As Represented By The Secretary Of The Navy | Method and apparatus for measuring corrosion current induced by microbiological activities |
| CN101598660B (en) * | 2009-07-06 | 2011-11-16 | 西南交通大学 | Constant temperature wiggly corrosive wear testing device and test method thereof |
| JP5459035B2 (en) * | 2010-04-16 | 2014-04-02 | Ｊｆｅスチール株式会社 | Durability judgment method for coated steel |
| CN102288536A (en) * | 2011-07-01 | 2011-12-21 | 中国科学院金属研究所 | Electrochemical corrosion testing device for realizing multiple types of in-situ monitoring |
| CN202676660U (en) * | 2012-06-20 | 2013-01-16 | 鞍钢股份有限公司 | Electrolytic tank for testing electrochemical performance of coating |
| CN205295505U (en) * | 2016-01-18 | 2016-06-08 | 贵州民族大学 | Positive pole electricity deposition apparatus |
| CN205861521U (en) * | 2016-06-17 | 2017-01-04 | 南京钢铁股份有限公司 | A kind of simple combination electrode of the Experiment in Erosive Electrochemistry improving structural stability |
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