CN212152470U - Vertical-hanging aluminum alloy oxidation coloring electrolytic cell - Google Patents

Abstract

The utility model discloses a erect and hang colored electrolysis trough of formula aluminum alloy oxidation, the electrolysis trough includes cell body and colored power control device, the cell body is equipped with the baffle, and one side of baffle is the main tank, and the opposite side is the auxiliary tank, the both sides of cell body are still symmetrical to be equipped with the circulating pump of a plurality of groups intercommunication main tank and auxiliary tank, the top of main tank is equipped with the metal mount that can reciprocate, and the inside wall of main tank is equipped with the metal inlayer, and metal inlayer, metal mount and circulating pump all with colored power control device electric connection, be equipped with a plurality of metal anchor clamps that are used for centre gripping aluminium products on the metal mount. The utility model provides a erect and hang colored electrolysis trough of formula aluminum alloy oxidation has the positive half-wave of adjusting alternating current power supply and the effect during operation of burden half-wave, enables metal ion more even at the concentration gradient on oxide film surface to the circulation rate of electrolyte is fast, thereby obtains better electrolytic coloring effect.

Description

Vertical-hanging aluminum alloy oxidation coloring electrolytic cell

Technical Field

The utility model relates to the technical field of aluminum product surface coloring treatment, in particular to a vertical hanging type aluminum alloy oxidation coloring electrolytic cell.

Background

Electrolytic coloring is a common method for surface treatment of aluminum profiles, and not only can the aluminum profiles have a decorative effect, but also the corrosion resistance of the aluminum profiles can be improved through the electrolytic coloring. The existing aluminum profile electrolytic coloring process comprises a vertical hanging type oxidation electrophoresis coloring production line, wherein an electrolytic coloring tank body of the vertical hanging type oxidation electrophoresis coloring production line is 7 meters in height, 9 meters in length and 3 meters in width, the volume of the electrolytic coloring tank body is about 200 cubic meters, and the uniform and stable electrolytic coloring color of the aluminum alloy profile on the vertical hanging type oxidation production line is difficult to ensure. Taking an aluminum alloy section with the length of 6.5 meters as an example, a finished product can be calculated only by ensuring that the quality of the same section is inspected and the color of the same section is uniform after the upper end and the lower end of the same section are electrolytically colored, otherwise, the finished product is a waste product. In order to ensure the uniformity of color, the traditional tin-nickel mixed salt is usually adopted as electrolyte for electrolytic coloring, and an aluminum profile with uniform color can be obtained, but the traditional tin-nickel mixed salt electrolytic coloring process contains heavy metal nickel ions which are extremely harmful to the environment and human bodies, so that the tin-nickel mixed salt is replaced by the tin salt, but the tin salt electrolytic coloring generates the phenomenon that the color of a groove is obviously lighter than that of a plane due to the reasons of slow diffusion of metal ions, poor dispersibility and the like in the electrolytic process of the tin salt, and the reasons of uneven distribution of the metal ions and the like caused by large volume of a tank body of a vertical suspension type electrolytic tank. It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the utility model aims to provide a vertical suspension type aluminum alloy oxidation coloring electrolytic cell, aiming at solving the defect of uneven color when the vertical suspension type electrolytic cell is used for single tin salt electrolysis coloring in the prior art.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a erect and hang colored electrolysis trough of formula aluminum alloy oxidation, wherein, the electrolysis trough includes cell body and colored power control device, the cell body is equipped with the baffle, and one side of baffle is main groove, and the opposite side is the auxiliary tank, the both sides of cell body still symmetry are equipped with the circulating pump of a plurality of groups intercommunication main groove and auxiliary tank, the top of main groove is equipped with the metal mount that can reciprocate, and the inside wall of main groove is equipped with the metal inlayer, and metal inlayer, metal mount and circulating pump all with colored power control device electric connection, be equipped with a plurality of metal anchor clamps that are used for centre gripping aluminium products on the metal mount.

In the vertical suspension type aluminum alloy oxidation coloring electrolytic cell, the coloring power supply control device comprises a PWM controller.

In the vertical hanging type aluminum alloy oxidation coloring electrolytic cell, the number of groups of the circulating pumps is not less than 3.

In the vertical hanging type aluminum alloy oxidation coloring electrolytic cell, the auxiliary tank is connected with a plurality of dosing tanks through a delivery pump.

In the vertical-hanging aluminum alloy oxidation coloring electrolytic cell, the main tank is provided with a heating mechanism and a temperature sensor, and the heating mechanism and the temperature sensor are both electrically connected with a coloring power supply control device.

In the vertical hanging type aluminum alloy oxidation coloring electrolytic tank, drain outlets are arranged at the bottoms of the main tank and the auxiliary tank.

In the vertical hanging type aluminum alloy oxidation coloring electrolytic cell, the height of the partition plate is lower than that of the cell body.

Has the advantages that:

the utility model provides a vertical hanging type aluminum alloy oxidation coloring electrolytic cell, which adopts a coloring power supply control device provided with a PWM controller, can adjust the working time of positive half-wave and negative half-wave of an alternating current power supply, prolongs the working time of the positive half-wave, so that the concentration gradient of metal ions on the surface of an oxide film is more uniform, and is additionally provided with a plurality of groups of circulating pumps, so that the circulation of electrolyte can be accelerated, and aluminum products with more uniform coloring can be obtained; moreover, the heating mechanism and the temperature sensor that set up make the temperature of the control electrolyte that can be better, and the medicine adding jar and the measuring pump that set up can adjust the concentration of electrolyte to obtain better electrolytic coloring effect.

Drawings

FIG. 1 is a schematic structural view of a vertical suspension type aluminum alloy oxidation coloring electrolytic cell provided by the utility model.

Fig. 2 is a schematic structural view of a metal fixing frame and a lifting mechanism.

Detailed Description

The utility model provides a vertical hanging type aluminum alloy oxidation coloring electrolytic tank, which aims to make the purpose, technical scheme and effect of the utility model clearer and clearer, and the following description refers to the attached drawings and is provided with the embodiment for further detailed description of the utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, the present invention provides a vertical suspension type aluminum alloy oxidation coloring electrolytic cell, which can be used in tin-nickel mixed salt electrolysis coloring process and single tin salt electrolysis coloring process, and is particularly suitable for single tin salt electrolysis coloring process. The electrolytic tank comprises a tank body 1 and a coloring power supply control device (not shown in the attached drawing), the tank body is provided with a partition plate 2, the height of the partition plate is lower than that of the tank body, one side of the partition plate is a main tank 3 for electrolytic coloring, the other side of the partition plate is an auxiliary tank 4 for electrolyte circulation and precipitation purification, the volume of the main tank is larger than that of the auxiliary tank, and a sewage discharge outlet 5 is arranged at the bottom of the main tank and the bottom of the auxiliary tank. The both sides of cell body still are equipped with the circulating pump 6 of a plurality of groups intercommunication main tank and auxiliary tank in pairs, and the auxiliary tank is connected to circulating pump 6's input 6.1, and output 6.2 intercommunication main tank can be with the electrolyte pump in the auxiliary tank 4 in going into main tank 3 through circulating pump 6. Specifically, the number of groups of the circulating pumps 6 is not less than 3, the input ends 6.1 of the circulating pumps are arranged in the middle of the side surfaces of the auxiliary tanks 4, the output ends 6.2 are connected to the side surfaces of the main tanks 3 and close to the bottom or the middle, the circulating pumps 6 can continuously input the electrolyte in the auxiliary tanks 4 into the main tanks 3, and when the electrolyte in the main tanks 3 exceeds the height of the partition plates 2, the electrolyte can overflow from the partition plates 2 to the auxiliary tanks 4, so that the electrolyte in the main tanks 3 and the auxiliary tanks 4 can circularly flow, the migration and diffusion speed of metal ions in the main tanks 3 is accelerated, and the metal ions are distributed in the solution more uniformly.

As shown in fig. 2, specifically, a metal fixing frame 7 is arranged above the main tank 3, the metal fixing frame 7 is connected to a lifting mechanism 8, and the lifting mechanism 8 may be a traveling crane or other device capable of lifting, so that the metal fixing frame can move up and down before and after the electrolytic coloring. The metal fixing frame is provided with a plurality of metal clamps 9 used for clamping aluminum products, the inner side wall of the main tank is provided with a metal inner layer, and the metal inner layer and the metal fixing frame are electrically connected with the coloring power supply control device and are respectively an anode and a cathode for electrolytic coloring. In the specific implementation process, after the metal fixture 9 clamps the aluminum product, the metal fixing frame is placed downwards, the aluminum product is immersed in the electrolytic bath, the power supply is turned on, and the aluminum product, the electrolyte, the metal inner layer and the power supply form a passage to perform electrolytic coloring on the aluminum product.

Specifically, in the above-mentioned vertical suspension type aluminum alloy oxidation coloring electrolytic cell, the coloring power supply control device includes a PWM controller, and the PWM controller is connected to an alternating current power supply, and plays a role in adjusting the operating duration of a positive half-wave and a negative half-wave of the alternating current power supply. In the electrolytic coloring process of the aluminum product, the deposition of metal ions in the oxide film holes occurs in the negative half-wave period of the alternating current, while the positive half-wave period of the alternating current does not have the electrolytic effect, but only the metal ions in the bath solution diffuse to the cathode to play the role of homogenizing the concentration gradient. Through the PWM controller, the working time of the positive half-wave and the negative half-wave of the alternating current power supply can be changed, and the working time of the positive half-wave and the negative half-wave is controlled to be 2-4: 1, so that metal ions in the electrolyte have enough time to diffuse on the surface of an aluminum product, the concentration gradient of the metal ions is more uniform, and further, the coloring is more uniform.

In some embodiments, as shown in fig. 1, in the above-mentioned vertical suspension type aluminum alloy oxidation coloring electrolytic cell, the auxiliary tank 4 is further connected with a dosing tank 10, and the dosing tank is arranged above the auxiliary tank and is communicated with the auxiliary tank 10 through a conveying pipeline provided with a metering pump 11. Because the concentration of the electrolyte is gradually reduced due to the continuous precipitation of metal ions, the electrolyte needs to be supplemented, in the specific implementation process, the electrolyte can be quantitatively added into the auxiliary tank through a conveying pipeline with a metering pump, and can be conveyed into the main tank through the circulating conveying of the circulating pump, and the electrolyte is homogenized through multiple times of circulation.

As shown in fig. 1, in the above-mentioned structure of the vertically suspended aluminum alloy oxidation coloring electrolytic cell, the main tank is provided with a heating mechanism 12 and a temperature sensor 13, the heating mechanism 12 is disposed on the inner bottom surface of the main tank and is used for heating the electrolyte to ensure that the electrolysis coloring is performed at a proper temperature, the temperature sensor is disposed on the side wall of the main tank 3 and is used for detecting the temperature of the electrolyte in the main tank 3, the heating mechanism 12 and the temperature sensor 13 are both electrically connected to the coloring power control device, the coloring power control device collects the temperature information of the electrolyte and controls the heating mechanism to be turned on and off, in the specific implementation process, the temperature sensor 13 transmits the sensed temperature of the electrolyte to the coloring power control device, the coloring power control device determines whether the temperature is lower than a temperature limit value, when the temperature is lower than the temperature limit value, the heating mechanism 12 is started to heat, and when the temperature is higher than the temperature limit value, the heating is stopped.

The specific implementation process is as follows:

with aluminium product centre gripping on metal fixture 9, then reduce metal mount 7 to aluminium product and immerse electrolyte completely, open painted power controlling means, the painted power of intercommunication, it is painted to carry out the electrolysis to aluminium product, simultaneously, circulating pump 6 is opened, constantly circulates electrolyte, and temperature sensor 13 detects the electrolyte temperature simultaneously, and when the temperature was less than the settlement limit value, heating mechanism 12 started the heating. And when the coloring power supply is turned off after the coloring is complete, the lifting mechanism 8 is started, the metal fixing frame is lifted, and the aluminum product is moved to the next procedure.

And when the concentration of the electrolyte is lower than the limit value, starting the metering pump 11 to carry out dosing treatment, diluting the added electrolyte in the auxiliary tank 4, and then entering the main tank 3 through the circulating pump 6.

It is understood that equivalents and changes may be made to the technical solution of the present invention and its concept by those skilled in the art, and all such changes and substitutions shall fall within the scope of the appended claims.

Claims (7)

1. The utility model provides a erect and hang colored electrolysis trough of formula aluminum alloy oxidation, a serial communication port, the electrolysis trough includes cell body and colored power control device, the cell body is equipped with the baffle, and one side of baffle is main tank, and the opposite side is the auxiliary tank, the both sides of cell body still symmetry are equipped with the circulating pump of a plurality of groups intercommunication main tank and auxiliary tank, the top in main tank is equipped with the metal mount that can reciprocate, and the inside wall in main tank is equipped with the metal inlayer, and metal inlayer, metal mount and circulating pump all with colored power control device electric connection, be equipped with a plurality of metal anchor clamps that are used for centre gripping aluminium products on the metal mount.

2. The vertically suspended aluminum alloy oxidation coloration electrolytic cell according to claim 1, wherein the coloration power control device comprises a PWM controller.

3. The vertically suspended aluminum alloy oxidation coloration electrolytic cell according to claim 1, wherein the number of sets of circulation pumps is not less than 3.

4. The vertically suspended aluminum alloy oxidation coloring electrolysis cell according to claim 1, wherein the auxiliary cell is connected with a dosing tank through a delivery pump.

5. The vertically suspended aluminum alloy oxidation and coloration electrolytic cell according to claim 1, wherein the main cell is provided with a heating mechanism and a temperature sensor, both of which are electrically connected with a coloration power control device.

6. The vertically hung aluminum alloy oxidation coloring electrolytic cell as claimed in claim 1, wherein the bottoms of the main tank and the auxiliary tank are provided with sewage outlets.

7. The vertically hung aluminum alloy oxidation coloring electrolytic cell as claimed in claim 1, wherein the height of the partition plate is lower than the height of the cell body.

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