CN211284590U - Aluminum alloy hard anode oxidation device - Google Patents
Aluminum alloy hard anode oxidation device Download PDFInfo
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- CN211284590U CN211284590U CN201921754888.2U CN201921754888U CN211284590U CN 211284590 U CN211284590 U CN 211284590U CN 201921754888 U CN201921754888 U CN 201921754888U CN 211284590 U CN211284590 U CN 211284590U
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Abstract
The utility model discloses an aluminum alloy hard anode oxidation device, which comprises a temperature control and heat preservation system, an anode oxidation 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 utility model can cool down in time, and reduce the adverse effect of high temperature on the performance of the oxide film in the anodic oxidation process.
Description
Technical Field
The utility model relates to an anodic oxidation field, more specifically relates to an aluminum alloy stereoplasm anodic oxidation device.
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 the aluminum alloy cartridge case, 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 concentration polarization phenomenon is generated. Concentration polarization can lead to increased energy consumption for anodization as well as to increased solution temperatures.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an aluminium alloy stereoplasm anodic oxidation device to not enough among the prior art, arrange the electrolysis trough in the vacuum insulation container who is equipped with coolant in, steerable anodic oxidation's temperature improves film forming quality.
The purpose of the utility model is realized through 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.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses install the electrolysis trough in vacuum insulation container, set up the heat absorption of cooling copper pipe at vacuum insulation container and provide low temperature environment for anodic oxidation device, can in time dispel the heat cooling to anodic oxidation solution, eliminate the adverse effect of high temperature to the oxide film performance among the oxidation process, improve working property such as hardness of oxide film.
The utility model discloses an adopt the stainless steel locating rod to hang anode jig, the stainless steel locating rod can be on the guide rail of electrolysis trough groove round trip movement, and then the distance between aluminium alloy sample and the negative plate on the adjustment anode jig reaches the purpose of controlling means impedance.
The utility model discloses set up rabbling mechanism between positive pole hanger and negative plate for the heat exchange rate of anodic oxidation solution and cooling copper pipe, it is even to also make the electrolyte keep the composition at the anodic oxidation in-process, thereby makes the even film-forming of aluminum alloy sample.
Drawings
FIG. 1 is a schematic structural diagram of an aluminum alloy hard anodizing apparatus provided in example 1;
fig. 2 is a schematic structural diagram of an anode hanger of the aluminum alloy hard anodizing device provided in embodiment 2.
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, a power supply 12 and a titanium alloy clamp 13.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.
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 insulation container 10 is filled with a cooling medium 11, and specifically, the cooling medium used in the present embodiment has the following components: 70% ethanol, 30% methanol; the cooling medium has the characteristics of extremely low freezing point, small 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, and in the embodiment, the anode hanger is a titanium alloy clamping groove 4 and used for fixing the aluminum alloy sample.
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.
The working process of the aluminum alloy hard anodic oxidation device provided by the embodiment is as follows: firstly, fixing an aluminum alloy sample 1 on a titanium alloy clamping groove, and pouring a proper amount of electrolyte into an electrolytic bath 3; then the electrolytic tank is placed in a vacuum heat-preservation container 10, a proper amount of cooling medium 11 is poured into the container, a centrifugal compressor is started to cool, and after the temperature sensor 8 displays that the temperature reaches a preset temperature, the anode hanger and the cathode plate 8 are fixed on the electrolytic tank 3. And finally, clamping the set positive pole of the power supply 12 on the stainless steel positioning rod 5, clamping the negative pole of the power supply 12 on the negative plate 8, starting the power supply 12, and starting the stirring device 6 to perform a low-temperature anodic oxidation experiment.
Example 2
Referring to example 1, the present embodiment provides an aluminum alloy hard anodizing apparatus, as shown in fig. 2, which is different from example 1 in that the anode hanger used in the present embodiment is a titanium alloy clamp 13, and can be used for fixing a relatively thin aluminum alloy sheet sample.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to 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 (9)
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.
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CN201921754888.2U CN211284590U (en) | 2019-10-18 | 2019-10-18 | Aluminum alloy hard anode oxidation device |
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CN201921754888.2U CN211284590U (en) | 2019-10-18 | 2019-10-18 | Aluminum alloy hard anode oxidation device |
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