Auxiliary device for electrolytic polishing of electronic aluminum foil

Abstract

The utility model discloses an auxiliary device for electrolytic polishing of an electronic aluminum foil, which is characterized in that a clamping plate is strip-shaped, an aluminum foil sample can be accommodated in the clamping plate, a hollow part is arranged below the clamping plate, the aluminum foil sample is exposed at the hollow part, and one end, far away from the hollow part, of the clamping plate is not sealed; the placing rack is of a frame structure and is horizontally provided with an upper cover plate and a lower bearing plate in an up-down corresponding mode. A plurality of stand columns are arranged between the upper cover plate and the lower bearing plate. A long-strip-shaped first through hole is formed in the left side of the upper cover plate, and a plurality of second through holes are formed in the right side of the first through hole in parallel. A first groove and a plurality of second grooves corresponding to the first through hole and the second through holes are formed in the upper surface of the lower bearing plate respectively, the second grooves and the second through holes are consistent in size and equal in horizontal direction interval, the second grooves are located under the second through holes, and the clamping plate can be placed in one second through hole according to needs. One end, far away from the hollow part, of each clamping plate protrudes out of the upper cover plate, and the other end is clamped into the corresponding second groove. The device is high in safety and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic polishing devices, in particular to an auxiliary device for electrolytic polishing of electronic aluminum foil. Background Art

[0002] The traditional electrolytic polishing device is composed of a DC power supply 1, an anode aluminum foil sample 2, a cathode stainless steel plate 3, an electrolytic cell 4, a cold bath 5, and a wire 6. Figure 1 As shown in the figure. Before electropolishing, one end of the wire is connected to a conductive clip, which holds the aluminum foil specimen and stainless steel, respectively. The other end of the wire is connected to the cathode and anode of a DC power supply, respectively. During electropolishing, the DC power supply is turned on, and the experimenter manually inserts the aluminum foil specimen into the electrolyte. A microelectrochemical cycle is established between the aluminum foil specimen and the stainless steel, gradually and evenly corroding and dissolving the aluminum foil surface, leaving it shiny, smooth, and stress-free. Electropolishing has the advantages of simple operation, fast polishing speed, and low experimental cost. It is the most commonly used and effective method for preparing EBSD and metallographic specimens.

[0003] There are many factors that affect electropolishing. In addition to polishing parameters (polishing voltage, time, temperature), sample type, sample size, and polishing liquid formula, manual operation also has a great impact on electropolishing. For operators, manual operation also has certain safety hazards. There is a risk of electric shock. If the positive and negative poles are short-circuited, it may also cause the polishing liquid to instantly ignite, posing a risk of burns and fire. For electropolishing, manual operation cannot ensure the consistency of the distance and angle between the surface of the aluminum foil sample and the stainless steel plate, affecting the uniformity of polishing. It cannot also ensure the consistency of the depth of the aluminum foil sample immersed in the polishing liquid, resulting in fluctuations in current density, thereby affecting the polishing effect. For aluminum foil materials with a thickness of only 0.08 to 0.14 mm, during the manual electropolishing process, it is often necessary to slightly shake the aluminum foil up and down to prevent the aluminum foil from breaking at the interface with the liquid surface of the polishing liquid, so the immersion depth cannot be kept consistent. Therefore, it is necessary to provide an auxiliary device for electronic aluminum foil electropolishing to solve the problems existing in the prior art.

[0004] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of this application. Utility Model Content

[0005] The purpose of the utility model is to propose an auxiliary device for electronic aluminum foil electrolytic polishing, so as to solve the technical problems existing in the above-mentioned prior art, such as the safety hazards when preparing EBSD samples and metallographic samples, and the inability to ensure the consistency of the distance and angle between the aluminum foil surface and the stainless steel.

[0006] To this end, the utility model proposes an auxiliary device for electrolytic polishing of electronic aluminum foil.

[0007] Preferably, the present invention may also have the following technical features:

[0008] An auxiliary device for electronic aluminum foil electrolytic polishing, comprising a clamping plate and a placement rack; the clamping plate is long and can accommodate an aluminum foil sample inside, and has a hollow portion provided below. When the aluminum foil sample is placed inside the clamping plate, the aluminum foil sample is exposed at the hollow portion. During the electronic aluminum foil electrolytic polishing experiment, the polishing area of each aluminum foil sample remains unchanged. The end of the clamping plate away from the hollow portion is not sealed, allowing one end of the aluminum foil sample to pass through the clamping plate.

[0009] The placement rack is a frame structure, with an upper cover plate and a lower supporting plate arranged horizontally above and below; a number of columns are arranged between the upper cover plate and the lower supporting plate; a long first through hole is arranged on the left side of the upper cover plate, and a number of second through holes are arranged parallel to the right side of the first through hole; a first groove and a number of second grooves are respectively arranged on the upper surface of the lower supporting plate corresponding to the first through hole and the second through hole, and the size of the several second grooves is consistent with that of the second through hole, and the horizontal spacing is the same, and the second grooves are located directly below the second through hole. When performing the electronic aluminum foil electrolytic polishing experiment, the splint can be placed in one of the second through holes according to needs, and the end of the splint away from the hollow part protrudes from the upper cover plate, and the other end is stuck in the corresponding second groove.

[0010] Preferably, the first through hole is narrower than the second through hole, and the first groove is narrower than the second groove.

[0011] Preferably, the placement rack is a quadrilateral frame structure, the quadrilateral is a square or a rectangle, and there are four columns, which are correspondingly arranged at the four corners of the upper cover plate and the lower support plate.

[0012] Preferably, it further comprises a plurality of bases arranged on the lower surface of the lower supporting plate.

[0013] Preferably, the base is arranged corresponding to the column.

[0014] Preferably, the placement rack and the clamping plate are both made of a non-conductive material with a certain hardness.

[0015] Preferably, the placement rack and the clamping plate are both made of PVC or PP.

[0016] Preferably, the clamp is composed of two clamps, one side of the clamps is connected together, and the other side is separated. When performing an electronic aluminum foil electrolytic polishing experiment, the clamp can be opened to place the aluminum foil sample inside the clamp.

[0017] The beneficial effects of the present invention compared with the prior art include:

[0018] 1. The auxiliary device realizes automatic electrolytic polishing, improves the safety of electronic aluminum foil electrolytic polishing, has a simple structure, is easy to use and has low manufacturing cost.

[0019] 2. A hollow portion is set under the clamping plate of the auxiliary device. Each time the sample is prepared, the liquid level of the electrolytic polishing liquid is set above the hollow portion, so that the polishing area of the aluminum foil sample remains unchanged and the current density is constant, thereby ensuring the uniformity of the electrolytic polishing and improving the polishing effect.

[0020] 3. The auxiliary device uses a frame-structured placement rack for placing aluminum foil samples. The rack is hollowed out on all sides so that the electrolytic polishing liquid can enter the placement rack from the electrolytic cell. The first through hole is set corresponding to the first groove, and the second groove is also set corresponding to the second through hole. The second groove is located directly below the second through hole. During the specific experiment, the cathode stainless steel plate and the aluminum foil sample can be placed vertically, so that the distance and angle between the stainless steel plate and the aluminum foil sample are consistent, thereby improving the uniformity of polishing. At the beginning of the experiment, the liquid level of the electrolytic polishing liquid is higher than the upper edge of the hollow part of the splint. During the experiment, there is no need to manually shake the aluminum foil sample. The immersion depth of the aluminum foil sample is always kept consistent to avoid fluctuations in current density. This effectively avoids fractures at the interface between the aluminum foil sample and the liquid surface of the electrolytic polishing liquid during the electrolytic polishing process, thereby improving the polishing effect and obtaining higher-quality EBSD samples and metallographic samples.

[0021] 4. The auxiliary device is also provided with a plurality of second through holes and second grooves, which can be placed in different second through holes and second grooves according to the effect of electrolytic polishing to meet different sample preparation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the prior art.

[0023] Figure 2 It is a structural diagram of a specific implementation method of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the placement rack of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the plywood of the utility model.

[0026] Figure 5 It is a structural schematic diagram of the clip of the utility model.

[0027] Explanation of Reference Numerals: 1-DC power supply; 2-aluminum foil sample; 3-stainless steel plate; 4-electrolytic cell; 5-cold bath; 6-conducting wire; 7-clamping plate; 71-hollow portion; 72-clamping piece; 8-placing rack; 81-upper cover; 811-first through hole; 812-second through hole; 82-lower supporting plate; 821-first groove; 822-second groove; 83-column; 84-base; DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following description is merely illustrative and is not intended to limit the scope and application of the present invention.

[0029] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts unless otherwise specifically specified.

[0030] like Figure 1 As shown, the electrolytic polishing device includes a DC power supply 1, an aluminum foil sample 2, a stainless steel plate 3, an electrolytic cell 4, a cold bath 5, and a wire 6. The electrolytic cell 4 contains an electrolytic polishing liquid. The utility model specifically relates to an auxiliary device for electronic aluminum foil electrolytic polishing, which is used to assist in aluminum foil electrolytic polishing. The device specifically includes a clamping plate 7 and a placement rack 8. During the electrolytic polishing experiment, the clamping plate 7 is used to clamp the aluminum foil sample 2, and the placement rack 8 is used to place the clamping plate 7 and place it as a whole in the electrolytic cell 4. The clamping plate 7 is long and can accommodate the aluminum foil sample 2 inside. A hollow portion 71 is provided below. When the aluminum foil sample 2 is placed inside the clamping plate 7, the aluminum foil sample 2 is exposed at the hollow portion 71. When the electronic aluminum foil electrolytic polishing experiment is performed, the polishing area of each aluminum foil sample 2 remains unchanged. The end of the clamping plate 7 away from the hollow portion 71 is not sealed, so that one end of the aluminum foil sample 2 can pass through the clamping plate 7.

[0031] In some examples of this embodiment, the clamping plate 7 is composed of two clips 72, one side of which is connected and the other side is separated. When performing electronic aluminum foil electrolytic polishing experiments, the clamping plate 7 can be opened to place the aluminum foil sample 2 inside the clamping plate 7. In other examples, the aluminum foil sample 2 can be placed directly on the clamping plate 72, and then another identical clamping plate 72 is placed on top. The assembled clamping plate 7 is then placed directly into one of the second through holes 812, with the lower end of the clamping plate 7 snapping into the second groove 822. The clamping plate 7 is typically made of PVC or PP.

[0032] Specifically, the placement rack 8 is a frame structure, with an upper cover plate 81 and a lower supporting plate 82 arranged horizontally above and below; a number of columns 83 are arranged between the upper cover plate 81 and the lower supporting plate 82; a long first through hole 811 is arranged on the left side of the upper cover plate 81, and a number of second through holes 812 are arranged parallel to the right side of the first through hole 811; a first groove 821 and a number of second grooves 822 are respectively arranged on the upper surface of the lower supporting plate 82 corresponding to the first through hole 811 and the second through hole 812, and the size of the several second grooves 822 is consistent with that of the second through hole 812, and the horizontal spacing is the same. The second groove 822 is located directly below the second through hole 812. This example takes three second through holes 812 and second grooves 822 as an example, and other numbers of second through holes 812 and second grooves 822 can also be set according to specific needs.

[0033] During electronic aluminum foil electropolishing experiments, the distance between the stainless steel plate 3 and the aluminum foil sample 2 directly affects the current transfer efficiency and the uniformity of the electrolytic reaction, thereby affecting the polishing quality. Too close a distance between the stainless steel plate 3 and the aluminum foil sample 2 can lead to excessive current density, causing excessive corrosion on the stainless steel plate 3, increased surface roughness on the aluminum foil sample 2, and even localized overheating, affecting the polishing quality. Conversely, too far a distance can result in insufficient current density, slowing the electropolishing process and failing to achieve the desired polishing effect. Therefore, when conducting an electronic aluminum foil electrolytic polishing experiment, the clamp 7 can be placed in one of the second through holes 812 as needed, and the end of the clamp 7 away from the hollow portion 71 protrudes from the upper cover 81. The anode conductive clamp (not shown in the figure) connected to the DC power supply 1 clamps the aluminum foil sample 2 protruding from the upper cover 81, and the other end is inserted into the corresponding second groove 822. The stainless steel plate 3 is set in the first through hole 811, and its lower end is inserted into the first groove 821. The cathode conductive clamp (not shown in the figure) connected to the DC power supply 1 clamps the stainless steel plate 3, and then power can be turned on for electrolytic polishing. Usually, the first through hole 811 is narrower than the second through hole 812, and the first groove 821 is narrower than the second groove 822. The stainless steel plate 3 is clearance-fitted with the first through hole 811 and the first groove 821, and the clamp 7 is clearance-fitted with the second through hole 812 and the second groove 822. This allows the stainless steel plate 3 and the clamp 7 to be well placed vertically without being too tight, making them easy to disassemble and assemble, and convenient to use.

[0034] It is understandable that the placement rack 8 can be configured as a polygonal frame structure, which can be set according to specific needs, such as Figure 2As shown, this example takes the placement rack 8 as a quadrilateral frame structure as an example, the quadrilateral is a square or a rectangle, and the four columns 83 are correspondingly arranged at the four corners of the upper cover plate 81 and the lower support plate 82. Of course, other numbers of columns 83 can also be set between the upper cover plate 81 and the lower support plate 82. In particular, when the placement rack 8 is longer, columns 83 can be set not only at the four corners. The specific number and position are not limited, as long as the upper cover plate 81 and the lower support plate 82 can be well supported. It is understandable that the placement rack 8 needs to be made of a non-conductive material with a certain hardness, so that the placement rack 8 does not react with the electrolytic polishing liquid of the electrolytic cell 4, does not affect the polishing effect, and can well support the stainless steel plate 3 and the plywood 7. Usually, the placement rack 8 is made of PVC or PP material.

[0035] In other examples, a number of bases 84 can be set on the lower surface of the lower support plate 82 to support the placement rack 8. Preferably, the bases 84 are set corresponding to the columns 83, which makes the bases 84 play a better supporting role. Of course, the bases 84 can also be set at other positions on the lower surface of the lower support plate 82, which does not affect the role of the above-mentioned auxiliary device in the polishing experiment.

[0036] The specific working process of the above-mentioned electrolytic polishing is as follows: electrolytic polishing liquid is placed in the electrolytic cell 4 in advance, relevant liquid is added to the cold bath 5, the aluminum foil sample 2 is placed in the clamp 7, the aforementioned clamp 7 is placed in one of the second through holes 812 of the placement rack 8, and the end of the clamp 7 close to the hollow part 71 is inserted into the corresponding second groove 822, the stainless steel plate 3 is inserted into the first through hole 811 of the placement rack 8, and the lower end of the stainless steel plate 3 is inserted into the first groove 821, and the aforementioned placement rack 8 is placed as a whole in the electrolytic cell 4, and the aluminum foil sample 2 protruding from the upper cover 81 is clamped with the anode conductive clamp connected to the DC power supply 1, and the stainless steel plate 3 is clamped with the cathode conductive clamp connected to the DC power supply 1, and the power is turned on for electrolytic polishing. After the polishing is completed, the power is turned off and the clamp 7 is taken out.

[0037] Those skilled in the art will recognize that numerous variations to the foregoing description are possible, and that the examples and figures are intended only to describe one or more specific implementations.

[0038] Although what are considered exemplary embodiments of the present invention have been described and illustrated, it will be understood by those skilled in the art that various changes and substitutions may be made thereto without departing from the spirit of the present invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the present invention without departing from the central concept of the present invention as described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but rather may include all embodiments and their equivalents falling within the scope of the present invention.

Claims

1. An auxiliary device for electrolytic polishing of electronic aluminum foil, characterized by: The apparatus comprises a clamping plate and a placement frame; the clamping plate is in the shape of an elongated strip and can accommodate an aluminum foil sample therein. A hollow portion is provided below the clamping plate. When the aluminum foil sample is placed inside the clamping plate, the aluminum foil sample is exposed at the hollow portion. When conducting an electronic aluminum foil electrolytic polishing experiment, the polishing area of each aluminum foil sample remains unchanged. The end of the clamping plate away from the hollow portion is not sealed, so that one end of the aluminum foil sample can pass through the clamping plate. The placement rack is a frame structure, with an upper cover plate and a lower supporting plate arranged horizontally above and below; a number of columns are arranged between the upper cover plate and the lower supporting plate; a long first through hole is arranged on the left side of the upper cover plate, and a number of second through holes are arranged parallel to the right side of the first through hole; a first groove and a number of second grooves are respectively arranged on the upper surface of the lower supporting plate corresponding to the first through hole and the second through hole, and the size of the several second grooves is consistent with that of the second through hole, and the horizontal spacing is the same, and the second grooves are located directly below the second through hole. When performing the electronic aluminum foil electrolytic polishing experiment, the splint can be placed in one of the second through holes according to needs, and the end of the splint away from the hollow part protrudes from the upper cover plate, and the other end is stuck in the corresponding second groove.

2. The auxiliary device for electronic aluminum foil electrolytic polishing according to claim 1, characterized in that: The first through hole is narrower than the second through hole, and the first groove is narrower than the second groove.

3. The auxiliary device for electronic aluminum foil electrolytic polishing according to claim 1, characterized in that: The placement rack is a quadrilateral frame structure, the quadrilateral is a square or a rectangle, and there are four columns, which are correspondingly arranged at the four corners of the upper cover plate and the lower support plate.

4. The auxiliary device for electronic aluminum foil electrolytic polishing according to claim 1, characterized in that: It also includes a plurality of bases arranged on the lower surface of the lower supporting plate.

5. The auxiliary device for electrolytic polishing of electronic aluminum foil according to claim 4, characterized in that: The base is arranged corresponding to the column.

6. The auxiliary device for electronic aluminum foil electrolytic polishing according to claim 1, characterized in that: The placement rack and the clamping plate are both made of non-conductive materials with a certain hardness.

7. The auxiliary device for electronic aluminum foil electrolytic polishing according to claim 6, characterized in that: The placement rack and the clamping plate are both made of PVC or PP material.

8. The auxiliary device for electronic aluminum foil electrolytic polishing according to claim 1, characterized in that: The clamping plate is composed of two clamping pieces, one side of the clamping pieces is connected together, and the other side is separated. When performing an electronic aluminum foil electrolytic polishing experiment, the clamping plate can be opened to place the aluminum foil sample inside the clamping plate.

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