CN115125599B - Device for preparing porous anodic aluminum oxide film - Google Patents
Device for preparing porous anodic aluminum oxide film Download PDFInfo
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- CN115125599B CN115125599B CN202210874349.2A CN202210874349A CN115125599B CN 115125599 B CN115125599 B CN 115125599B CN 202210874349 A CN202210874349 A CN 202210874349A CN 115125599 B CN115125599 B CN 115125599B
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/10—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing organic acids
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/36—Phosphatising
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/16—Regeneration of process solutions
- C25D21/18—Regeneration of process solutions of electrolytes
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Abstract
The application relates to a device for preparing a porous anodic aluminum oxide film, which is characterized in that different voltages are applied between each pair or a plurality of pairs of electrode plates to carry out anodic oxidation, the anodic oxidation time is controlled to obtain the porous anodic aluminum oxide film, an aluminum sheet of the porous anodic aluminum oxide film subjected to one or a plurality of anodic oxidation treatments is clamped below a clamping mechanism through one or a plurality of anodic oxidation treatments, and the porous anodic aluminum oxide film reacts under a proper liquid level in a reaction tank to obtain the porous anodic aluminum oxide film after an aluminum matrix is removed through adjusting the integral lifting of the lifting mechanism and the local lifting of the clamping mechanism. The device can rapidly process and obtain the porous anodic aluminum oxide film in batches, and has simpler steps and high repeatability.
Description
The application is a divisional application, the application number of the original application is: cn202110884581.X, filing date: 2021-08-03 has the name: a process and a device for preparing a porous anodic aluminum oxide film.
Technical Field
The application relates to a processing technology of a micro-nano structure film, in particular to a device for preparing a porous anodic aluminum oxide film.
Background
The porous anodic aluminum oxide film has a hexagonal close-packed structure with regular and ordered height, and has the characteristics of uniform and adjustable pore diameter, pore spacing and pore thickness. Is widely used as a template material for preparing various biosensors and semiconductor materials. The porous anodic aluminum oxide film has a highly regular micro-nano structure, and is also a catalyst carrier, a filtering material and a surface anti-corrosion material with excellent performance.
At present, a porous anodic aluminum oxide film is obtained by adopting a pure aluminum sheet by adopting an anodic oxidation method, and the porous anodic aluminum oxide film obtained by adopting a one-time anodic oxidation method or a multi-time anodic oxidation method is inevitably provided with an aluminum substrate. The porous anodic aluminum oxide film is formed by anodic oxidation of a pure aluminum sheet and is adhered to an aluminum substrate, so that the application of the anodic aluminum oxide film is limited to a large extent, and therefore, when the porous anodic aluminum oxide film is used as a substrate template material, aluminum base on the back surface of the porous anodic aluminum oxide film needs to be removed. Among the conventional methods for removing the aluminum substrate are chemical substitution reaction, electrochemical method and plasma etching method, and the most commonly used method is chemical substitution reaction. Electrochemical methods are highly likely to destroy the original morphology of the film, and plasma etching methods are expensive to bombard the back aluminum substrate with plasma.
The porous anodic aluminum oxide film obtained by adopting chemical displacement reaction is generally obtained by putting an aluminum sheet containing the anodic aluminum oxide film and an aluminum substrate into an acidic copper chloride solution for displacement reaction, and the porous anodic aluminum oxide film is left in the solution after the reaction is finished. Most of reaction devices are glass dishes or beakers, a small amount of porous anodic aluminum oxide films can be obtained by using the glass dishes or beakers, the porous anodic aluminum oxide films are extremely thin and have thicknesses ranging from a few micrometers to tens of micrometers, the porous anodic aluminum oxide films are also very fragile, the porous anodic aluminum oxide films falling off in the solution are often difficult to obtain complete films, and aluminum groups cannot be removed in a large amount to obtain the porous anodic aluminum oxide films.
Disclosure of Invention
The application aims to provide a device for preparing a porous anodic aluminum oxide film, which solves the problems in the background and effectively realizes large-scale removal of aluminum base to obtain the porous anodic aluminum oxide film.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a device of preparation porous anodic aluminum oxide membrane, includes reaction tank, electrode pair, elevating system and fixture, the electrode pair is a plurality of, evenly the interval arranges in the reaction tank, and every electrode pair all includes first electrode piece, second electrode piece, first electrode piece and second electrode piece interval certain distance, the inside wall at the reaction tank is installed to the second electrode piece, first electrode piece is installed on fixture, fixture is connected with elevating system, fixture centre gripping aluminum sheet, elevating system includes annular lift platform, cylinder guide rail, lock sleeve, T type guide rail, the vertical solid dress of cylinder guide rail is in the center of reaction tank, slidable mounting annular lift platform on cylinder guide rail, the lock sleeve is fixed annular lift platform on cylinder guide rail, radially evenly spaced solid dress a plurality of T type guide rails on annular lift platform, equal slidable mounting fixture on each T type guide rail, fixture includes T type guide pin bushing, clamping block, T type guide pin bushing and T type guide rail sliding connection realize that fixture's lift, the aluminum sheet presss clamp is used for inlaying an dress pole piece between T type guide pin bushing and clamping block, the clamp is used for inlaying and inlaying a dress pole piece on the first guide rail.
Moreover, annular lift platform includes annular support plate, connecting plate, sliding sleeve, the sliding sleeve suit is on the cylinder guide rail, and radial symmetry in the outer wall of sliding sleeve installs three connecting plate admittedly, and the one end and the sliding sleeve of three connecting plate are connected, and the other end is connected with annular support plate, annular support plate is coaxial with the sliding sleeve, and radial symmetry passes through a plurality of T type guide rails of screw admittedly at annular support plate's outer wall.
The reaction tank comprises an inner annular surrounding plate, an outer annular surrounding plate, a bottom plate and a circular plate, wherein the outer annular surrounding plate is fixedly arranged at the outer edge of the bottom plate, the inner annular surrounding plate is coaxially and fixedly arranged on the inner side of the outer annular surrounding plate and the outer annular surrounding plate, and the inner annular surrounding plate and the outer annular surrounding plate are separated by a certain distance.
And a threaded hole is formed in the center of the bottom plate and is meshed with the bottom end of the cylindrical guide rail.
And one end of the outer ring coaming is provided with a liquid inlet, and the other end is provided with a liquid outlet, and the liquid outlet is sealed by a rubber plug.
The locking sleeve comprises a flange inner sleeve and an outer sleeve, wherein the flange inner sleeve is provided with external threads, the outer sleeve is provided with internal threads, and the outer sleeve is in meshed connection with the flange inner sleeve.
And the side surface of the T-shaped guide sleeve is provided with a threaded hole which is matched and connected with a locking screw of the T-shaped guide rail to limit the movement of the T-shaped guide sleeve in the T-shaped guide rail.
And an aluminum sheet clamping groove is formed in the outer wall of the T-shaped guide sleeve, and the clamping block is arranged at the position of the aluminum sheet clamping groove and is connected with the T-shaped guide sleeve through an aluminum sheet locking screw, so that the first electrode sheet is tightly jointed with the aluminum sheet.
And the outer wall of the T-shaped guide sleeve is fixedly provided with two pins, each pin is sleeved with a spring, two positioning grooves are formed in the clamping block, and the two positioning grooves on the clamping block are respectively in one-to-one correspondence with the positions of the two pins on the T-shaped guide sleeve.
The application has the advantages and positive effects that:
1. the device can realize the whole process from anodic oxidation to removal of the oxide film, then to secondary or multiple anodic oxidation, and finally to removal of the aluminum matrix on the porous anodic aluminum oxide film.
2. The device can simultaneously control a plurality of groups of anodic oxidation voltages and oxidation time at one time, and can realize partition management and time-sharing management through arrangement and combination. The partition management is to apply the same voltage between a certain pair of electrode plates to carry out anodic oxidation, and apply another voltage between a certain pair of electrode plates to carry out anodic oxidation, and the time-sharing management finishes anodic oxidation by switching off a power switch according to different anodic oxidation time, so that one device can realize various anodic oxidation and control of anodic oxidation time.
3. The reaction tank of the device can flow the reaction solution into the main reaction tank through the liquid inlet, and the liquid outlet is arranged in the reaction tank, so that the waste liquid and impurities in the reaction tank can be discharged in time, and the new solution in the reaction tank can be conveniently replaced and the waste liquid and impurities can be conveniently recycled.
4. The lifting mechanism of the device can realize the lifting of the whole distance, and the size and the dimension of the processed anodic aluminum oxide film are controllable.
5. The clamping mechanism of the device can realize lifting action in a local small range, ensures that the size of the processed porous anodic alumina film is as large as possible, and the spring of the clamping mechanism is more accurate to contract and pop out, thereby being convenient for tightly clamping the aluminum sheet.
6. The device can be used for obtaining the porous anodic aluminum oxide film by batch processing, and has the advantages of simple steps, high repeatability, short time and high efficiency.
Drawings
FIG. 1 is a perspective view of the apparatus of the present application;
FIG. 2 is a top view of FIG. 1;
figure 3 A-A is a cross-sectional view of figure 2.
Detailed Description
The application will now be described in further detail by way of specific examples, which are given by way of illustration only and not by way of limitation, with reference to the accompanying drawings.
A process for obtaining porous anodic alumina film and a device for removing aluminum matrix comprise a reaction tank, an electrode pair, a lifting mechanism and a clamping mechanism.
The reaction tank is in a circular shape and comprises an inner annular surrounding plate 103, an outer annular surrounding plate 101, a bottom plate 104, a liquid inlet 102 and a liquid outlet 105, wherein the bottom plate 104 is a circular plate, the outer annular surrounding plate 101 is fixedly arranged on the outer edge of the bottom plate 104, the inner annular surrounding plate 103 is fixedly arranged on the inner side of the outer annular surrounding plate 101 and is coaxial with the outer annular surrounding plate 101, and the inner annular surrounding plate 103 and the outer annular surrounding plate 101 are separated by a certain distance. A threaded hole 107 is formed in the center of the bottom plate 104 and is engaged with the bottom end of the cylindrical guide rail 302. One end of the outer ring coaming 101 is provided with a liquid inlet 102, the other end is provided with a liquid outlet 105, and the liquid outlet 105 is sealed by a rubber plug 106. Liquid enters from the liquid inlet 102 and is contained in an annular interval 108 surrounded by the inner annular surrounding plate 103, the outer annular surrounding plate 101 and the bottom plate 104, and aluminum sheet aluminum removal reaction of anodic oxidation and porous anodic aluminum oxide film formation is carried out in the interval.
The electrode pair comprises a first electrode slice 202 and a second electrode slice 201, which are respectively connected with the positive electrode and the negative electrode of the anodic oxidation power supply. The number of the second electrode plates 201 is plural, the second electrode plates are radially and uniformly arranged on the inner wall of the inner surrounding plate 103 at intervals, and a plurality of clamping grooves for clamping the electrode plates are radially and uniformly arranged on the inner wall of the inner surrounding plate 103 at intervals. The first electrode pad 202 is mounted on a clamping mechanism.
The lifting mechanism comprises an annular lifting platform, a cylindrical guide rail 302, a locking sleeve 301 and a T-shaped guide rail 305, wherein the annular lifting platform comprises an annular supporting plate 303, a connecting plate 304 and a sliding sleeve 306, and the sliding sleeve 306 is sleeved on the cylindrical guide rail 302 and can slide on the cylindrical guide rail 302. Three connecting plates 304 are radially and symmetrically fixed on the outer wall of the sliding sleeve 306, one ends of the three connecting plates 304 are connected with the sliding sleeve 306, the other ends of the three connecting plates are connected with the annular supporting plate 303, the annular supporting plate 303 is coaxial with the sliding sleeve 306, and a plurality of T-shaped guide rails 305 are radially and symmetrically fixed on the outer wall of the annular supporting plate 303 through screws. A clamping mechanism is mounted on the T-shaped rail 305.
The locking sleeve 301 comprises a flange inner sleeve 307 and an outer sleeve 308, and the sliding sleeve 306 is connected with a flange plate of the flange inner sleeve 307 through bolts. The flange inner sleeve 307 is provided with external threads, the outer sleeve 308 is provided with internal threads, and the outer sleeve 308 is in meshed connection with the flange inner sleeve 307. The flange inner sleeve 307 is provided with a cross opening, and the outer sleeve 308 and the flange inner sleeve 307 are tightly screwed and matched to be extruded into the cross opening, so that the annular lifting platform is locked on the cylindrical guide rail 302.
The clamping mechanism comprises a T-shaped guide sleeve 401, a clamping block 402, an aluminum sheet locking screw 403 and a T-shaped guide rail locking screw 404. The T-shaped guide sleeve 401 is slidably connected with the T-shaped guide rail 305, so as to realize lifting of the clamping mechanism. The side surface of the T-shaped guide sleeve 401 is provided with a threaded hole which is matched and connected with a T-shaped guide rail locking screw 404, so that the T-shaped guide sleeve 401 can be limited to move in the T-shaped guide rail 305. The T-shaped guide sleeve 401 is symmetrically provided with limit grooves 405 on two side plates at the lower part thereof, and the lowest descending point of the T-shaped guide sleeve 401 is limited.
The clamping block 402 is provided with a clamping groove for embedding the first electrode slice 202. An aluminum sheet clamping groove 406 is formed in the outer wall of the T-shaped guide sleeve 401, the clamping block 402 is arranged at the position of the aluminum sheet clamping groove 406, the T-shaped guide sleeve 401 and the clamping block 402 are tightly connected together through an aluminum sheet locking screw 403, the aluminum sheet is clamped between the T-shaped guide sleeve 401 and the clamping block 402, the aluminum sheet locking screw 403 clamps the aluminum sheet, and meanwhile the first electrode sheet 202 is tightly jointed with the aluminum sheet.
The outer wall of the T-shaped guide sleeve 401 is fixedly provided with two pins 407, a threaded hole is formed in the outer wall, and a spring 408 is sleeved on each pin 407. Two positioning grooves 409 are formed in the clamping block 402, a through hole and a clamping groove are formed in the clamping block 402, and the two positioning grooves 409 on the clamping block 402 are respectively in one-to-one correspondence with the positions of the two pins 407 on the T-shaped guide sleeve 401. The aluminum sheet locking screw 403 can be tightly clamped between the T-shaped guide sleeve 401 and the clamping block 402 by screwing the through hole of the clamping block 402 and the threaded hole on the T-shaped guide sleeve 401, and when the aluminum sheet locking screw 403 is loosened, the spring 408 on the pin 407 of the T-shaped guide sleeve 401 can automatically spring off the clamping block 402, so that the aluminum sheet is convenient to assemble and disassemble.
The whole lifting platform is locked on the cylindrical guide rail 302 by the locking sleeve 301, and the local lifting of the clamping mechanism is locked on the T-shaped guide rail 305 by the T-shaped guide rail locking screw 404.
The application method of the device comprises the following specific steps:
firstly, putting an aluminum sheet (the purity is 99.999%) with the specification of 10-30mm multiplied by 10-40mm into enough acetone, sealing, ultrasonically cleaning for 10min, and then cleaning with deionized water to remove greasy dirt on the surface of the aluminum sheet;
step two, putting the cleaned and dried aluminum sheet in 0.2-2mol/LNaOH solution for soaking for 5-20min, removing dense alumina on the surface of the aluminum sheet, and then cleaning and drying the aluminum sheet by deionized water;
step three, carrying out electrochemical polishing on the aluminum sheet treated in the step two, wherein the polishing solution is prepared from absolute ethyl alcohol and perchloric acid in a ratio of 4:1, placing an aluminum sheet under an anode, and polishing for 2-10min at 15-25V voltage;
step four, selecting one surface of the aluminum sheet treated in the step three as a reaction area for generating porous anodic aluminum oxide, wherein the reaction area is 1-3cm 2 Except the connection part of the aluminum sheet and the anode, the rest part of the aluminum sheet is sealed by insulating glue, so that the connection part of the aluminum sheet except the reaction area and the anode is sealed by phenolic resin;
step five, preparing electrolyte, wherein the electrolyte is prepared from oxalic acid and absolute ethyl alcohol in a ratio of 2-4, wherein the molar ratio of oxalic acid to absolute ethyl alcohol is 0.1-1 mol/L: 1, pouring the prepared electrolyte into a reaction tank with constant temperature, wherein the temperature environment is-15-5 ℃, clamping the aluminum sheet treated in the fourth step on a clamping mechanism, tightly contacting the aluminum sheet with a first electrode sheet 202, connecting the anode of an electrochemical etching power supply with the first electrode sheet 202, connecting the cathode of the electrochemical etching power supply with a second electrode sheet 201, performing anodic primary oxidation, wherein the oxidation voltage is stepped boosting, starting timing for 5-30min when the voltage reaches 95V, and the electrochemical etching power supply is a high-order nano array film electrochemical etching power supply; in this step, anodic oxidation can be performed at different voltages at the same time, and anodic oxidation time at different or the same voltage can also be controlled differently, wherein the anodic oxidation at different voltages is performed simultaneously, and 15 pairs of electrode plates in the device can be provided with different voltages or a certain pair of electrode plates can be provided with the same voltage for regional anodic oxidation. The anodic oxidation time under different or same voltage can be controlled differently, namely the anodic oxidation time is controlled by a power switch connected with the electrode plate, and the clamping mechanism is lifted by unscrewing the T-shaped guide rail locking screw 404, so that the aluminum sheet is separated from contact with the liquid level;
continuously maintaining the aluminum sheet with the porous anodic aluminum oxide film obtained in the step five in the device, cleaning and drying by deionized water, pouring 0.1-2mol/L chromic acid and 3-8wt% phosphoric acid mixed solution into a reaction tank, and heating the device in a constant-temperature water bath at 60 ℃ for 1-4 hours to remove the porous anodic aluminum oxide film generated by primary oxidation;
step seven, cleaning and drying the aluminum sheet in the step six, and repeating the step five for secondary oxidation, wherein the oxidation time is 1-30min after the aluminum sheet is directly or stepwise boosted to 95V;
and step eight, placing the aluminum sheet with the porous anodic aluminum oxide film obtained in the step seven into enough acetone, ultrasonically cleaning for 5-10min, and removing the insulating glue (phenolic resin) in the step four.
Step nine, preparing a solution for removing aluminum base, wherein the solution is 0.1-1mol/L CuCl 2 The solution was taken with HCl at 10;0.5-3, pouring the prepared solution into the reaction tank through the liquid inlet 102, clamping the aluminum sheet in the eighth step on the clamping mechanism, and separating the porous anodic aluminum oxide film from the CuCl in the acidic reaction tank 2 The solution liquid level distance is 1-2mm, so that the overall height is adjusted through the lifting mechanism, and the local fine adjustment is realized through adjusting the lifting height of the clamping mechanism, thereby ensuring that the anodic aluminum oxide film after the aluminum matrix is removed is always adhered to an aluminum sheet which does not participate in the reaction. This process requires multiple replacement of formulated acidic CuCl 2 The solution and the discharge recovery waste liquid and Cu generated by the displacement reaction.
Step ten, step nine can obtain 15 pieces of porous anodic aluminum oxide film once, change the solution of the reaction tank in step nine into 3-8wt% phosphoric acid solution, use 5wt% phosphoric acid solution in this example, and put the reaction tank into water bath to heat for 40-80min at constant temperature of 30 ℃.
And step eleven, cleaning the porous anodic aluminum oxide film obtained in the step ten by deionized water and airing to obtain the porous anodic aluminum oxide film in batches.
The foregoing is merely a preferred embodiment of the present application, and it should be noted that it will be apparent to those skilled in the art that variations and modifications can be made without departing from the scope of the application.
Claims (9)
1. The device for preparing the porous anodic aluminum oxide film comprises a reaction tank, a plurality of electrode pairs, a lifting mechanism and a clamping mechanism, wherein the reaction tank is circular, the electrode pairs are uniformly distributed in the reaction tank at intervals, each electrode pair comprises a first electrode plate (202) and a second electrode plate (201) which are respectively connected with the positive electrode and the negative electrode of an anodic oxidation power supply, the first electrode plate (202) and the second electrode plate (201) are separated by a certain distance, the second electrode plate (201) is arranged on the inner side wall of the reaction tank, the first electrode plate (202) is arranged on the clamping mechanism, the clamping mechanism is connected with the lifting mechanism, the clamping mechanism clamps an aluminum sheet, the lifting mechanism comprises an annular lifting platform, a cylindrical guide rail (302), a locking sleeve (301) and a T-shaped guide rail (305), the cylindrical guide rail (302) is vertically fixed at the center of the reaction tank, the annular lifting platform is slidably arranged on the cylindrical guide rail (302), the locking sleeve (301) is fixedly arranged on the cylindrical guide rail (302) at a certain distance, the annular lifting platform is radially uniformly arranged on the annular lifting guide rail (302) at intervals, the T-shaped guide rail (305) is fixedly arranged on the T-shaped guide rail (401) at intervals, the T-shaped guide rail (401) is connected with the T-shaped guide rail (401) in a sliding mode, the T-shaped guide rail (401) is fixedly arranged between the T-shaped guide rail and the T-shaped guide rail (401) and the clamping mechanism, the clamping block (402) is provided with a clamping groove for embedding the first electrode plate (202).
2. The apparatus according to claim 1, wherein: the annular lifting platform comprises an annular supporting plate (303), connecting plates (304) and sliding sleeves (306), wherein the sliding sleeves (306) are sleeved on cylindrical guide rails (302), three connecting plates (304) are radially and symmetrically fixedly arranged on the outer walls of the sliding sleeves (306), one ends of the three connecting plates (304) are connected with the sliding sleeves (306), the other ends of the three connecting plates are connected with the annular supporting plate (303), the annular supporting plate (303) is coaxial with the sliding sleeves (306), and a plurality of T-shaped guide rails (305) are radially and symmetrically arranged on the outer walls of the annular supporting plate (303) through screws.
3. The apparatus according to claim 1, wherein: the reaction tank comprises an inner annular surrounding plate (103), an outer annular surrounding plate (101), a bottom plate (104) and a circular plate, wherein the outer annular surrounding plate (101) is fixedly arranged on the outer edge of the bottom plate (104), the inner annular surrounding plate (103) is coaxially and fixedly arranged on the inner side of the outer annular surrounding plate (101) and the outer annular surrounding plate (101), and the inner annular surrounding plate (103) and the outer annular surrounding plate (101) are separated by a certain distance.
4. A device according to claim 3, characterized in that: a threaded hole (107) is formed in the center of the bottom plate (104) and is meshed with the bottom end of the cylindrical guide rail (302).
5. A device according to claim 3, characterized in that: one end of the outer ring coaming (101) is provided with a liquid inlet (102), the other end is provided with a liquid outlet (105), and the liquid outlet (105) is sealed by a rubber plug (106).
6. The apparatus according to claim 1, wherein: the locking sleeve (301) comprises a flange inner sleeve (307) and an outer sleeve (308), wherein the flange inner sleeve (307) is provided with external threads, the outer sleeve (308) is provided with internal threads, and the outer sleeve (308) is in meshed connection with the flange inner sleeve (307).
7. The apparatus according to claim 1, wherein: the side surface of the T-shaped guide sleeve (401) is provided with a threaded hole which is matched and connected with a T-shaped guide rail locking screw (404) to limit the movement of the T-shaped guide sleeve (401) in the T-shaped guide rail (305).
8. The apparatus according to claim 1, wherein: an aluminum sheet clamping groove (406) is formed in the outer wall of the T-shaped guide sleeve (401), the clamping block (402) is arranged at the position of the aluminum sheet clamping groove (406), and the T-shaped guide sleeve (401) is connected with the clamping block (402) through an aluminum sheet locking screw (403), so that the first electrode sheet (202) is tightly jointed with an aluminum sheet.
9. The apparatus according to claim 1, wherein: two pins (407) are fixedly arranged on the outer wall of the T-shaped guide sleeve (401), a spring (408) is sleeved on each pin (407), two positioning grooves (409) are formed in the clamping block (402), and the two positioning grooves (409) in the clamping block (402) are respectively in one-to-one correspondence with the positions of the two pins (407) in the T-shaped guide sleeve (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210874349.2A CN115125599B (en) | 2021-08-03 | 2021-08-03 | Device for preparing porous anodic aluminum oxide film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210874349.2A CN115125599B (en) | 2021-08-03 | 2021-08-03 | Device for preparing porous anodic aluminum oxide film |
| CN202110884581.XA CN113622011B (en) | 2021-08-03 | 2021-08-03 | Process method and device for preparing porous anodic aluminum oxide film |
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| CN202110884581.XA Division CN113622011B (en) | 2021-08-03 | 2021-08-03 | Process method and device for preparing porous anodic aluminum oxide film |
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| CN115125599A CN115125599A (en) | 2022-09-30 |
| CN115125599B true CN115125599B (en) | 2023-09-12 |
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| CN202110884581.XA Active CN113622011B (en) | 2021-08-03 | 2021-08-03 | Process method and device for preparing porous anodic aluminum oxide film |
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