CN110724993A - Aluminum alloy hard anodic oxidation device and method - Google Patents

Aluminum alloy hard anodic oxidation device and method Download PDF

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Publication number
CN110724993A
CN110724993A CN201910994205.9A CN201910994205A CN110724993A CN 110724993 A CN110724993 A CN 110724993A CN 201910994205 A CN201910994205 A CN 201910994205A CN 110724993 A CN110724993 A CN 110724993A
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aluminum alloy
anodic oxidation
electrolytic bath
heat preservation
anodizing
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Inventor
阳建君
范才河
雷新蕾
孙斌
吴艳辉
欧玲
王博文
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Hunan University of Technology
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Hunan University of Technology
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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
    • C25D11/005—Apparatus specially adapted for electrolytic conversion coating
    • 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
    • C25D11/16—Pretreatment, e.g. desmutting
    • 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
    • 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
    • C25D17/02—Tanks; Installations therefor
    • 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
    • C25D21/02—Heating or cooling
    • 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
    • C25D21/10—Agitating of electrolytes; Moving of racks

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

The invention discloses an aluminum alloy hard anodizing device and a method, wherein the aluminum alloy hard anodizing device comprises a temperature control and heat preservation system, an anodizing system, an auxiliary control system and a power supply; the temperature control and heat preservation system comprises a vacuum heat preservation container filled with a cooling medium, a cooling copper pipe is arranged in the vacuum heat preservation container, the anodic oxidation system is arranged in the vacuum heat preservation container, the anodic oxidation device comprises an electrolytic bath, and a negative plate and an anode hanger are arranged in the electrolytic bath; the auxiliary control system is arranged between the cathode plate and the anode hanger and comprises an L-shaped support frame, the L-shaped support frame comprises a vertical plate and a transverse plate which are perpendicular to each other, the vertical plate is fixed on the electrolytic bath, and a stirring device and a temperature sensor are arranged on the transverse plate; the power supply is an adjustable constant-current constant-voltage power supply. The invention can dissipate heat and cool in time when used for anodic oxidation, and reduce the adverse effect of high temperature on the performance of the oxide film in the anodic oxidation process.

Description

Aluminum alloy hard anodic oxidation device and method
Technical Field
The invention relates to the technical field of aluminum alloy anodic oxidation, in particular to an aluminum alloy hard anodic oxidation device and method.
Background
The aluminum alloy material has the characteristics of small density, strong toughness, weldability, easy forming and processing and the like. However, the aluminum alloy has the defects of light and soft quality, low hardness, poor corrosion resistance, low melting point and the like, and is subject to scaling in the industry. Therefore, in order to improve the surface hardness, corrosion resistance, melting point, and the like of the aluminum alloy, it is necessary to perform surface treatment on the aluminum alloy, and anodizing is the most common surface treatment means for aluminum and aluminum alloys. The process of forming dense alumina film on the surface of aluminum alloy product by means of electrolysis is called anodic oxidation treatment of aluminum alloy. The aluminum alloy product subjected to the anodic oxidation treatment is referred to as an aluminum alloy anode product.
The surface of the aluminum alloy is anodized and plated with an anodic oxide film, so that the surface performance of the aluminum alloy can be greatly improved. However, the anodic oxidation process is a process with a large amount of heat release, in the conventional device, the anodic oxidation process is carried out at normal temperature, the temperature is gradually increased along with the reaction process, the temperature is too high, the oxide film gap is increased, even dissolved, and the film forming effect is poor.
In the anodic oxidation process of aluminum alloy, when current passes through a battery or an electrolytic cell, the whole electrode process is controlled by electrolyte diffusion, convection and other processes, the concentration of the electrolyte near the two electrodes is different from that of a solution body, the concentration of the electrolyte is uneven, the electrode potentials of an anode and a cathode deviate from the potential of a balance electrode, and the phenomenon of concentration polarization is generated. Concentration polarization can lead to increased energy consumption for anodization as well as to increased solution temperatures.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an aluminum alloy hard anodizing device which improves the hardness, thickness and corrosion resistance of an oxide film by reducing the reaction temperature in the anodizing process.
The invention also aims to provide a method for the aluminum alloy hard anodizing device.
The purpose of the invention is realized by the following technical scheme:
an aluminum alloy hard anodizing device comprises a temperature control and heat preservation system, an anodizing system, an auxiliary control system and a power supply;
the temperature control and heat preservation system comprises a vacuum heat preservation container filled with a cooling medium, a cooling copper pipe is arranged in the vacuum heat preservation container, a refrigerant is filled in the cooling copper pipe, a water inlet and a water outlet of the cooling copper pipe are connected with a compressor, and a temperature control device is arranged on the compressor;
the anodic oxidation system is arranged in the vacuum heat-insulation container, the anodic oxidation device comprises an electrolytic bath, a negative plate is arranged in the electrolytic bath, a stainless steel positioning rod is arranged above the electrolytic bath, an anode hanger is hung on the stainless steel positioning rod, and the anode hanger is a titanium alloy clamping groove or a titanium alloy clamp;
the auxiliary control system is arranged between the cathode plate and the anode hanger and comprises an L-shaped support frame, the L-shaped support frame comprises a vertical plate and a transverse plate which are perpendicular to each other, the vertical plate is fixed on the electrolytic bath, the transverse plate is positioned above the electrolytic bath, and a stirring device and a temperature sensor are arranged on the transverse plate;
the power supply is an adjustable constant-current constant-voltage power supply, and the anode and the cathode of the power supply are respectively connected with the stainless steel positioning rod and the cathode plate.
Furthermore, the cooling copper pipe is arranged on the inner wall of the vacuum heat-insulating container in a surrounding mode.
Further, the compressor is any one of a piston compressor, a screw compressor and a centrifugal compressor.
Furthermore, the stainless steel positioning rod stretches across the opening of the electrolytic cell, a guide rail is arranged on the opening of the electrolytic cell, and a sliding block is arranged on the stainless steel positioning rod and can slide in the guide rail.
Furthermore, scales are marked on the guide rail.
Furthermore, bulges are arranged on two sides of the negative plate, corresponding notches are arranged on the electrolytic cell, and the bulges are matched with the notches to fix the negative plate.
Further, the stirring device is a propeller.
Furthermore, the vacuum heat-insulating container is made of stainless steel and comprises an outer shell and an inner shell, and a vacuum inner cavity is arranged between the outer shell and the inner shell.
Furthermore, the electrolytic bath is made of plastic.
An aluminum alloy anodizing method using the aluminum alloy hard anodizing device is characterized by comprising the following steps:
s1, pretreatment: carrying out ultrasonic cleaning and drying treatment on an aluminum alloy sample to be treated and a cathode plate, and respectively fixing the aluminum alloy sample and the cathode plate in an anode hanger and an electrolytic bath, wherein the distance between the aluminum alloy sample and the cathode plate is 10 +/-2 cm;
s2, cooling: injecting electrolyte into the reaction tank, and starting a compressor to cool the electrolyte to-10 to-5 ℃;
s3, anodic oxidation: starting a stirring device and a power supply to carry out anodic oxidation, wherein the anodic oxidation time is 25-65 min;
s4, hole sealing: and sealing holes of the anodized aluminum alloy sample by using boiling deionized water.
Compared with the prior art, the invention has the following beneficial effects:
the electrolytic bath is arranged in the vacuum heat-insulating container, the cooling copper pipe is arranged in the vacuum heat-insulating container to absorb heat so as to provide a low-temperature environment for the anodic oxidation device, the anodic oxidation solution can be cooled in time, the adverse effect of high temperature on the performance of an oxidation film in the oxidation process is eliminated, the oxidation film is formed compactly, and the gaps are distributed uniformly.
According to the invention, the stainless steel positioning rod is adopted to hang the anode clamp, and the stainless steel positioning rod can move back and forth on the guide rail of the opening of the electrolytic cell, so that the distance between the aluminum alloy sample on the anode clamp and the cathode plate is adjusted, and the purpose of controlling the impedance of the device is achieved.
According to the invention, the stirring mechanism is arranged between the anode hanger and the cathode plate, so that the heat exchange rate of the anodic oxidation solution and the cooling copper pipe is accelerated, and the components of the electrolyte can be kept uniform in the anodic oxidation process, so that an aluminum alloy sample can be uniformly formed into a film, and the thickness, hardness and corrosion resistance of the oxide film are improved.
Drawings
FIG. 1 is a schematic structural view of an aluminum alloy hard anodizing apparatus in example 1;
FIG. 2 is a metallographic image of an oxide film of the aluminum alloy prepared in example 2;
FIG. 3 is a metallographic image of an oxide film of the aluminum alloy prepared in example 3;
FIG. 4 is a metallographic image of an oxide film of the aluminum alloy prepared in example 4;
FIG. 5 is a metallographic image of an oxide film of the aluminum alloy prepared in example 5;
FIG. 6 is a metallographic image of an oxide film of the aluminum alloy prepared in example 6;
the device comprises an aluminum alloy sample 1, a cooling copper pipe 2, an electrolytic bath 3, a titanium alloy clamping groove 4, a stainless positioning rod 5, a stirring device 6, an L-shaped support frame 7, a temperature sensor 8, a cathode lead plate 9, a vacuum heat-preservation container 10, a cooling medium 11 and a power supply 12.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the following examples, but the scope of the present invention is not limited to the following specific examples.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
Example 1
As shown in fig. 1, the embodiment provides an aluminum alloy hard anodizing device, which includes a temperature control and insulation system, an anodizing system, an auxiliary control system, and a power supply. The temperature control and heat preservation system comprises a vacuum heat preservation container 10, the vacuum heat preservation container 10 is made of stainless steel, the vacuum heat preservation container comprises an outer shell and an inner shell, and a vacuum inner cavity is arranged between the outer shell and the inner shell to achieve the heat preservation effect. A cooling copper pipe 2 is arranged in the vacuum heat-insulating container 10, and the cooling copper pipe 2 is arranged on the inner wall of the vacuum heat-insulating container 10 in a surrounding mode. The water inlet and the water outlet of the cooling copper pipe 2 are connected with a compressor (not shown in the figure), and R600a refrigerant is filled in the cooling copper pipe 2. The compressor may be any one of a piston compressor, a screw compressor, and a centrifugal compressor is preferred in the present embodiment. The compressor is provided with a temperature control device which is a temperature controller and is used for adjusting the refrigeration temperature of the compressor so as to control the reaction temperature in the anodic oxidation process. The vacuum heat-insulating container 10 is filled with a cooling medium 11, specifically, the cooling medium used in the present embodiment is ethanol, and has the characteristics of extremely low freezing point, low density, large specific heat capacity, easy volatilization, heat absorption, and the like.
In this embodiment, the anodic oxidation system is installed in the vacuum heat-insulating container 10, the anodic oxidation apparatus includes an electrolytic cell 3, and the electrolytic cell 3 is made of plastic and is resistant to low temperature and corrosion. Be equipped with negative plate 8 in electrolysis trough 3, the negative plate 8 both sides are equipped with the arch, are equipped with corresponding breach on electrolysis trough 3, cooperate the position of fixed negative plate 8 through arch and breach when using. 3 tops of electrolysis trough are equipped with stainless steel locating rod 5, and specifically, stainless steel locating rod 5 spanes 3 notches of electrolysis trough, is equipped with the guide rail on the electrolysis trough notch, and the position of coming into contact with the guide rail on the stainless steel locating rod is equipped with the slider, and the slider slides on the guide rail, moves on driving 3 notches of stainless steel locating rod electrolysis trough. Scales are marked on the guide rail, and millimeter scales are marked by taking a notch for fixing the cathode plate as an original point; when in use, the distance between the anode hanger and the cathode plate can be accurately adjusted according to the scales of the opening of the electrolytic cell, and the impedance of the device is adjusted. An anode hanger is hung on the stainless steel positioning rod 5 and used for fixing an aluminum alloy sample, the anode hanger is a titanium alloy clamping groove or a titanium alloy clamp, and in the embodiment, the anode hanger is preferably a titanium alloy clamping groove 4.
In this embodiment, the auxiliary control system is arranged between the cathode plate 8 and the anode hanger, the auxiliary control system comprises an L-shaped support frame 7, the L-shaped support frame 7 comprises a vertical plate and a transverse plate which are perpendicular to each other, the vertical plate is fixed on the electrolytic bath 3, and the transverse plate is provided with a stirring device 6 and a temperature sensor 8. Specifically, the stirring device 6 is a propeller, and a driving motor is installed inside the stirring device 6. In the anodic oxidation process, the stirring device 6 rotates, so that the components of the electrolyte are kept uniform, and the heat exchange efficiency is accelerated; the temperature sensor 8 can feed back the reaction temperature in the anodic oxidation process in real time.
In the embodiment, the adjustable constant-current constant-voltage power supply 12 is adopted, so that the voltage and the current can be adjusted, the change of the voltage and the current in the reaction process is displayed, and the progress of the anodic oxidation reaction is controlled. In the anodic oxidation process, the anode and the cathode of the power supply 12 are respectively connected with the stainless steel positioning rod 5 and the cathode plate 8.
Example 2
The embodiment provides an aluminum alloy anodic oxidation method, which comprises the following steps:
s1, pretreatment: carrying out ultrasonic cleaning and drying treatment on an aluminum alloy sample made of 2a96 aluminum alloy and a negative plate, and respectively fixing the aluminum alloy sample and the negative plate in an anode hanger and an electrolytic bath, wherein the distance between the aluminum alloy sample and the negative plate is 10 cm;
s2, cooling: the reaction vessel was charged with a concentration of 120g/L H2SO4The solution is used as electrolyte, and the compressor is started to electrolyzeCooling the solution to-5 deg.C;
s3, anodic oxidation: starting a stirring device and a power supply to carry out anodic oxidation, wherein the anodic oxidation time is 25 min;
s4, hole sealing: sealing holes of the anodized aluminum alloy sample with boiling deionized water for 15min, and fig. 2 is a metallographic photograph of the oxide film prepared in this example.
Example 3
The embodiment provides an aluminum alloy anodic oxidation method, which comprises the following steps:
s1, pretreatment: carrying out ultrasonic cleaning and drying treatment on an aluminum alloy sample made of 2a96 aluminum alloy and a negative plate, and respectively fixing the aluminum alloy sample and the negative plate in an anode hanger and an electrolytic bath, wherein the distance between the aluminum alloy sample and the negative plate is 8 cm;
s2, cooling: the reaction vessel was charged with a concentration of 120g/L H2SO4The solution is used as electrolyte, and a compressor is started to cool the electrolyte to-10 ℃;
s3, anodic oxidation: starting a stirring device and a power supply to carry out anodic oxidation, wherein the anodic oxidation time is 35 min;
s4, hole sealing: sealing holes of the anodized aluminum alloy sample with boiling deionized water for 15min, and fig. 3 is a metallographic photograph of the oxide film prepared in this example.
Example 4
The embodiment provides an aluminum alloy anodic oxidation method, which comprises the following steps:
s1, pretreatment: carrying out ultrasonic cleaning and drying treatment on an aluminum alloy sample made of 2a96 aluminum alloy and a negative plate, and respectively fixing the aluminum alloy sample and the negative plate in an anode hanger and an electrolytic bath, wherein the distance between the aluminum alloy sample and the negative plate is 12 cm;
s2, cooling: the reaction vessel was charged with a concentration of 120g/L H2SO4The solution is used as electrolyte, and a compressor is started to cool the electrolyte to-8 ℃;
s3, anodic oxidation: starting a stirring device and a power supply to carry out anodic oxidation, wherein the anodic oxidation time is 45 min;
s4, hole sealing: sealing holes of the anodized aluminum alloy sample with boiling deionized water for 15min, and fig. 4 is a metallographic photograph of the oxide film prepared in this example.
Example 5
The present example provides an aluminum alloy anodizing method, which specifically includes the steps of referring to example 1, and is different from example 1 in that the anodizing time in step S3 is 55min, and fig. 5 is a metallographic photograph of an oxide film prepared in the present example.
Example 6
The present example provides an aluminum alloy anodizing method, which specifically includes the steps of referring to example 1, and is different from example 1 in that the anodizing time in step S3 is 65min, and fig. 6 is a metallographic photograph of an oxide film prepared in the present example.
And (3) testing the thickness of an oxide film, the hardness of the aluminum alloy and the corrosion resistance of the aluminum alloy subjected to anodic oxidation treatment in the embodiment 2-6, wherein the corrosion resistance test adopts a drop test, and the proportion of the used corrosive liquid is as follows: 3g K2Cr2O4、75ml H2O, 5ml HCl, the test results are shown in Table 1.
TABLE 1
Thickness of oxide film (um) Hardness of aluminium alloy (HV) Infusion time (S)
Example 2 13.47 236.45 30
Example 3 22.83 238.46 32
Example 4 28.01 263.81 57
Example 5 33.08 227.47 52
Example 6 30.2 220.9 50
From the above test results and the accompanying drawings, the oxide film prepared by the invention has good film forming effect, and the hardness and the corrosion resistance of the aluminum alloy are improved, wherein the effect of the embodiment 4 is the best.
It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. An aluminum alloy hard anodizing device is characterized by comprising a temperature control and heat preservation system, an anodizing system, an auxiliary control system and a power supply;
the temperature control and heat preservation system comprises a vacuum heat preservation container filled with a cooling medium, a cooling copper pipe is arranged in the vacuum heat preservation container, a refrigerant is filled in the cooling copper pipe, a water inlet and a water outlet of the cooling copper pipe are connected with a compressor, and a temperature control device is arranged on the compressor;
the anodic oxidation system is arranged in the vacuum heat-insulation container, the anodic oxidation device comprises an electrolytic bath, a negative plate is arranged in the electrolytic bath, a stainless steel positioning rod is arranged above the electrolytic bath, an anode hanger is hung on the stainless steel positioning rod, and the anode hanger is a titanium alloy clamping groove or a titanium alloy clamp;
the auxiliary control system is arranged between the cathode plate and the anode hanger and comprises an L-shaped support frame, the L-shaped support frame comprises a vertical plate and a transverse plate which are perpendicular to each other, the vertical plate is fixed on the electrolytic bath, the transverse plate is positioned above the electrolytic bath, and a stirring device and a temperature sensor are arranged on the transverse plate;
the power supply is an adjustable constant-current constant-voltage power supply, and the anode and the cathode of the power supply are respectively connected with the stainless steel positioning rod and the cathode plate.
2. The aluminum alloy hard anodizing device of claim 1, wherein the cooling copper pipe is circumferentially arranged on the inner wall of the vacuum heat-insulating container.
3. The aluminum alloy hard anodizing device of claim 1, wherein the compressor is any one of a piston compressor, a screw compressor and a centrifugal compressor.
4. The aluminum alloy hard anodizing device of claim 1, wherein the stainless steel positioning rod spans across an opening of the electrolytic cell, a guide rail is arranged on the opening of the electrolytic cell, and a sliding block is arranged on the stainless steel positioning rod and can slide in the guide rail.
5. The aluminum alloy hard anodizing device of claim 4, wherein the guide rail is marked with a scale.
6. The aluminum alloy hard anodizing device of claim 1, wherein protrusions are arranged on two sides of the cathode plate, corresponding notches are arranged on the electrolytic cell, and the protrusions and the notches are matched to fix the cathode plate.
7. The aluminum alloy hard anodizing device of claim 1, wherein the stirring device is a propeller.
8. The aluminum alloy hard anodizing device of claim 1, wherein the vacuum insulation container comprises an outer shell and an inner shell made of stainless steel, and a vacuum cavity is formed between the outer shell and the inner shell.
9. The aluminum alloy hard anodizing device of claim 1, wherein the electrolytic bath is made of plastic.
10. A method for anodizing an aluminum alloy using the aluminum alloy hard anodizing apparatus of claim 1 ~ 9, comprising the steps of:
s1, pretreatment: carrying out ultrasonic cleaning and drying treatment on an aluminum alloy sample to be treated and a cathode plate, and respectively fixing the aluminum alloy sample and the cathode plate in an anode hanger and an electrolytic bath, wherein the distance between the aluminum alloy sample and the cathode plate is 10 +/-2 cm;
s2, cooling, namely injecting electrolyte into the reaction tank, and starting a compressor to cool the electrolyte to-10 ~ -5 ℃;
s3, anodizing, namely starting a stirring device and a power supply to perform anodizing, wherein the anodizing time is 25 ~ 65 min;
s4, hole sealing: and sealing holes of the anodized aluminum alloy sample by using boiling deionized water.
CN201910994205.9A 2019-10-18 2019-10-18 Aluminum alloy hard anodic oxidation device and method Pending CN110724993A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111996569A (en) * 2020-07-31 2020-11-27 常州费曼生物科技有限公司 Reaction tank heat dissipation method in preparation process of anodized aluminum porous infusion filter membrane
CN112111771A (en) * 2020-10-22 2020-12-22 袁亚明 Aluminum type anodic oxidation device
CN112481674A (en) * 2020-11-12 2021-03-12 天长市京发铝业有限公司 Aluminum plate anodic oxidation device
CN113718309A (en) * 2021-09-01 2021-11-30 天长市京发铝业有限公司 Aluminum plate anodic oxidation equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111996569A (en) * 2020-07-31 2020-11-27 常州费曼生物科技有限公司 Reaction tank heat dissipation method in preparation process of anodized aluminum porous infusion filter membrane
CN112111771A (en) * 2020-10-22 2020-12-22 袁亚明 Aluminum type anodic oxidation device
CN112481674A (en) * 2020-11-12 2021-03-12 天长市京发铝业有限公司 Aluminum plate anodic oxidation device
CN112481674B (en) * 2020-11-12 2022-02-22 天长市京发铝业有限公司 Aluminum plate anodic oxidation device
CN113718309A (en) * 2021-09-01 2021-11-30 天长市京发铝业有限公司 Aluminum plate anodic oxidation equipment
CN113718309B (en) * 2021-09-01 2023-12-15 天长市京发铝业有限公司 Aluminum plate anodic oxidation equipment

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