CN212844935U - Couple pair cathode and anode area adjustable device applied to couple corrosion experiment - Google Patents
Couple pair cathode and anode area adjustable device applied to couple corrosion experiment Download PDFInfo
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- CN212844935U CN212844935U CN202021809143.4U CN202021809143U CN212844935U CN 212844935 U CN212844935 U CN 212844935U CN 202021809143 U CN202021809143 U CN 202021809143U CN 212844935 U CN212844935 U CN 212844935U
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Abstract
The utility model discloses a be applied to couple of galvanic corrosion experiment and to adjustable device of negative and positive pole area, it includes the solution tank, all is equipped with the electrode connection head in the both sides of solution tank, is connected with wire, its characterized in that between two electrode connection heads: the electrode connector comprises a cylindrical base and a cylindrical butt joint part which are in threaded connection, and a liquid inlet hole is formed in the axis of the inner bottom surface of the cylindrical butt joint part; the inner bottom surface of the cylindrical base is provided with a raised supporting seat, the upper end of the supporting seat is provided with a sample to be tested which is connected with the lead in the direction, the sample to be tested is provided with a gasket which is tightly propped against the inner bottom surface of the cylindrical butt joint part, and the gasket is coaxial with the liquid inlet hole and has an inner diameter larger than the aperture of the liquid inlet hole; the utility model has simple operation and the adjustable area of the couple pair cathode and anode.
Description
Technical Field
The utility model relates to a be applied to galvanic couple of galvanic corrosion experiment and to adjustable device of negative and positive pole area belongs to experiment negative and positive pole area adjustment tool field.
Background
Galvanic corrosion refers to the accelerated corrosion phenomenon caused when one metal is in contact with another metal with a more positive potential in a corrosive environment. Galvanic corrosion, a potentially damaging factor, threatens the overall reliability of many structural facilities in actual life and production and has a great potential safety hazard. The galvanic corrosion test is carried out, and the accurate understanding of the galvanic corrosion characteristics among different materials has important guiding significance for selecting a corrosion protection and prevention method. At present, a large number of scholars research the galvanic corrosion of steel, aluminum alloy, magnesium alloy and the like when being coupled with dissimilar metal materials, and relevant researches show that: the factors influencing the results of the galvanic corrosion test are many and very complex, and the factors mainly comprise temperature, humidity, salt spray, material types, the area ratio of cathode to anode of a galvanic couple, the distance between galvanic couples and the like. Wherein, in a corrosive environment, the cathode/anode area ratio of a galvanic couple has a significant effect on the galvanic corrosion rate between metallic materials having typical corrosion potential differences. Since the area ratio of the anode and the cathode of the couple pair is a key factor influencing the galvanic corrosion behavior, the preparation of sample samples with different area ratios of the anode and the cathode is a key step in the field of galvanic corrosion research.
In order to prepare couple pairs with different anode-cathode ratios and study the influence of the anode-cathode area of the couple pairs on galvanic corrosion, generally, a lead is welded on a sample, then the sample is packaged by paraffin or epoxy resin, and an electrochemical test is carried out by exposing the required area ratio. However, this method has the following disadvantages: the packaging process cannot accurately obtain the area of the cathode and the anode; paraffin or epoxy resin is used as a packaging material, warping is easily formed at the edge, the exposed area of the cathode and the anode is influenced, and the two factors directly influence the experimental result. Meanwhile, the electrode preparation and packaging processes of the sample are complicated.
Based on this, a galvanic corrosion experimental device which is simple to operate and adjustable in the area of the anode and the cathode of the galvanic couple is needed, and the galvanic corrosion experimental device has a wide practical application value.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a device for adjusting the area of the cathode and the anode of the galvanic couple pair, which is applied to the galvanic couple corrosion experiment, and has simple operation and adjustable area of the cathode and the anode of the galvanic couple pair; the defects of the prior art can be overcome.
The technical scheme of the utility model is that: a couple pair cathode and anode area adjustable device applied to a couple corrosion experiment comprises a solution pool, wherein electrode connectors are arranged on two sides of the solution pool, a lead is connected between the two electrode connectors, each electrode connector comprises a cylindrical base and a cylindrical butt joint piece which are in threaded connection, and a liquid inlet hole is formed in the axis of the inner bottom surface of each cylindrical butt joint piece; the bottom surface is equipped with bellied supporting seat in the tube-shape base, has put the sample of awaiting measuring to link to with the wire at the upper end of supporting seat, is equipped with the packing ring that offsets tightly with the tube-shape interfacing piece bottom surface in the sample of awaiting measuring, the packing ring is coaxial and the internal diameter of liquid inlet hole is greater than the aperture in liquid inlet hole.
The inner bore of the gasket has a plurality of different sized dimensions.
The gasket is made of rubber.
And a paraffin layer for sealing is arranged at the threaded connection part of the cylindrical base and the cylindrical butt joint piece.
And a lead inlet is arranged at the end of the cylindrical base outside the solution pool.
Compared with the prior art, the utility model is applied to the device with adjustable cathode and anode areas of the galvanic couple pair in the galvanic couple corrosion experiment, the electrode connector comprises a tubular base and a tubular butt joint piece which are connected by screw threads, and a liquid inlet hole is arranged at the axis of the inner bottom surface of the tubular butt joint piece; the structure is characterized in that a raised supporting seat is arranged on the inner bottom surface of the cylindrical base, a sample to be tested which is connected with the lead in the direction is arranged at the upper end of the supporting seat, a gasket which is tightly abutted against the inner bottom surface of the cylindrical butt joint part is arranged on the sample to be tested, the gasket is coaxial with the liquid inlet hole, and the inner diameter of the gasket is larger than the aperture of the liquid inlet hole; the inner bore of the gasket has a plurality of different sized dimensions; the size of the area of the cathode and the anode can be adjusted by changing the size of the inner ring of the gasket; when the device is assembled, the cylindrical base and the cylindrical butt joint piece which are connected through the threads can be conveniently disassembled and assembled; the paraffin layer for sealing is arranged at the threaded connection part of the cylindrical base and the cylindrical butt joint piece, so that the sealing performance of the cylindrical base and the cylindrical butt joint piece is improved.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the front view connection structure of the present invention.
Fig. 2 is a schematic view of the top-view connection structure of the present invention.
Fig. 3 is a sectional view of the electrode connector of the present invention.
Fig. 4 is a schematic front view of the present invention.
Wherein, the solution pool 1; an electrode connector 2; a wire 3; a cylindrical base 4; a tubular docking member 5; a liquid inlet hole 6; a support base 7; a sample to be tested 8; a gasket 9.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.
Embodiment 1. as shown in fig. 1, a couple pair cathode and anode area adjustable device applied to a couple corrosion experiment comprises a solution pool 1, wherein two sides of the solution pool 1 are respectively provided with an electrode connector 2, a lead 3 is connected between the two electrode connectors 2, the electrode connectors 2 comprise a cylindrical base 4 and a cylindrical butt joint piece 5 which are in threaded connection, and a paraffin layer for sealing is arranged at the threaded connection part of the cylindrical base 4 and the cylindrical butt joint piece 5; a lead 3 inlet is arranged at the end of the cylindrical base 4 outside the solution pool 1; a liquid inlet hole 6 is arranged at the axis of the bottom surface in the cylindrical butt joint piece 5; a raised supporting seat 7 is arranged on the inner bottom surface of the cylindrical base 4, a sample 8 to be tested which is connected with the lead 3 in the direction is arranged at the upper end of the supporting seat 7, a gasket 9 which is tightly propped against the inner bottom surface of the cylindrical butt joint part 5 is arranged on the sample 8 to be tested, the gasket 9 is coaxial with the liquid inlet hole 6, and the inner diameter of the gasket 9 is larger than the aperture of the liquid inlet hole 6; the inner bore of the washer 9 has a plurality of different sizes, the washer 9 being made of rubber.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a be applied to couple that galvanic corrosion experiment is to adjustable device of negative and positive pole area, it includes solution tank (1), all is equipped with electrode connection head (2) in the both sides of solution tank (1), is connected with wire (3) between two electrode connection head (2), its characterized in that: the electrode connector (2) comprises a cylindrical base (4) and a cylindrical butt joint piece (5) which are in threaded connection, and a liquid inlet hole (6) is formed in the axis of the inner bottom surface of the cylindrical butt joint piece (5); the bottom surface is equipped with bellied supporting seat (7) in tube-shape base (4), has put in the upper end of supporting seat (7) and wire (3) to the sample (8) that awaits measuring even, be equipped with on sample (8) that awaits measuring with the tube-shape abutting-joint spare (5) interior bottom facial features tight packing ring (9), packing ring (9) are coaxial and the internal diameter is greater than the aperture in feed liquor hole (6) with feed liquor hole (6).
2. The device for adjusting the area of the cathode and the anode of the galvanic couple applied to the galvanic couple corrosion experiment according to claim 1, wherein: the inner bore of the washer (9) has a plurality of different sizes.
3. The device for adjusting the area of the cathode and the anode of the galvanic couple applied to the galvanic couple corrosion experiment according to claim 2, wherein: the gasket (9) is made of rubber.
4. The device for adjusting the area of the cathode and the anode of the galvanic couple applied to the galvanic couple corrosion experiment according to claim 1, wherein: a paraffin layer for sealing is arranged at the threaded connection part of the cylindrical base (4) and the cylindrical butt joint piece (5).
5. The device for adjusting the area of the cathode and the anode of the galvanic couple applied to the galvanic corrosion experiment according to any one of claims 1 to 4, wherein: the end of the cylindrical base (4) outside the solution pool (1) is provided with a lead (3) inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021809143.4U CN212844935U (en) | 2020-08-26 | 2020-08-26 | Couple pair cathode and anode area adjustable device applied to couple corrosion experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021809143.4U CN212844935U (en) | 2020-08-26 | 2020-08-26 | Couple pair cathode and anode area adjustable device applied to couple corrosion experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212844935U true CN212844935U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021809143.4U Active CN212844935U (en) | 2020-08-26 | 2020-08-26 | Couple pair cathode and anode area adjustable device applied to couple corrosion experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212844935U (en) |
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2020
- 2020-08-26 CN CN202021809143.4U patent/CN212844935U/en active Active
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