KR100573359B1 - Continuous Automatic Facilities for Electrochemical Indirect Etching of Aluminium Plate - Google Patents

Abstract

According to the present invention, each process in an in-line continuous automation facility is transported through a transfer line, so that the cleaning, washing, electrochemical etching, and anodizing process for the inline process are developed and the line speed and treatment according to the process. The quality of the tank can be maintained by maintaining the temperature, concentration, etc. by using the temperature controller and the concentration controller for each process, and the loss of the liquid can be prevented by using the circulation method. The present invention relates to a continuous automation apparatus for electrochemical indirect etching of aluminum plate, which is supplied with aluminum plate (1) and sprayed with sulfuric acid (H ₂ SO ₄ ) solution to remove foreign substances adhering to the surface. And washing means (10) consisting of a first washing tank (3) for spraying and cleaning the upper and lower surfaces of the plate discharged therefrom; On the surface of the aluminum sheet 1 discharged from the cleaning means 10, the surface of the roughness homogenizing tank 4 for uniformly treating the surface roughness by spraying a sodium hydroxide (NaOH) solution, and the upper and lower surfaces of the plate discharged therefrom. An active treatment means (20) comprising a second washing tank (5) for spraying and washing water; An electrochemical etching bath 6 for supplying an indirect power supply while spraying hydrochloric acid solution to the aluminum sheet 1 discharged from the active treatment means 20 to form a rough surface on the surface of the aluminum sheet 1; Electrochemical indirect etching means (30) comprising a third flush tank (7) for spraying and cleaning water on upper and lower surfaces of the discharged sheet; Neutralization tank (8) for injecting and neutralizing the nitric acid (HNO ₃ ) solution on the surface of the aluminum plate 1 discharged from the electrochemical indirect etching means 30, and water on the upper and lower surfaces of the plate discharged therefrom A neutralization means (40) comprising a fourth water washing tank (9) for spraying and washing the water; An anodizing film treatment tank 11 for supplying an indirect power supply while injecting sulfuric acid (H ₂ SO ₄ ) solution onto the surface of the aluminum plate 1 discharged from the neutralization means 40 to form an anodized film; Anodizing film treatment means (50) comprising a fifth washing tank (12) for spraying and cleaning water on upper and lower surfaces of the plate discharged therefrom; It consists of a washing and drying means (60) consisting of a hot water bath (13) for completely immersing the plate material discharged from the anodic oxidation film treatment means (50) in hot water, and a dryer (14) for drying the plate. Provided is a continuous automation apparatus for electrochemical indirect etching of aluminum sheet.

Aluminum sheet, indirect etching, activation treatment, anodization, indirect power supply, neutralization treatment

Description

Continuous Automatic Facilities for Electrochemical Indirect Etching of Aluminum Plate}

1 is a process diagram of an electrochemical indirect etching apparatus on an aluminum sheet according to the present invention;

2 is a conceptual diagram showing the overall configuration of a continuous automation device for electrochemical indirect etching of aluminum sheet according to the present invention;

Figure 3 is a device connection diagram showing the configuration of each treatment tank constituting a continuous automation device for the electrochemical indirect etching of aluminum sheet according to the present invention;

Figure 4 is a device connection diagram showing the configuration of each handmade constituting the continuous automation device for electrochemical indirect etching of aluminum sheet according to the present invention;

5 is an apparatus diagram showing an electrochemical etching means constituting a continuous automation apparatus for electrochemical indirect etching of aluminum sheet according to the present invention;

FIG. 6 is an apparatus diagram showing anodizing means for constituting a continuous automation apparatus for electrochemical indirect etching of an aluminum sheet according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

DESCRIPTION OF SYMBOLS 1: Aluminum plate 2: Chemical cleaning tank 3: First flush tank 10: Cleaning means

4: roughness equalization tank 5: second water washing tank 20: active treatment means 13: hot water washing tank

6: electrochemical etching bath 7: third flush tank 30: electrochemical indirect etching means

8: Neutralization tank 9: Fourth washing tank 40: Neutralization treatment means 14: Dryer

11: Anodized film treatment tank 12: Fifth flush tank 50: Anodized film treatment means

The present invention relates to a continuous automation device for electrochemical indirect etching of aluminum sheet, and more particularly, in the in-line continuous automation equipment, each process is transported through a transfer line, so that cleaning and washing for the inline process Development of electrochemical etching, anodizing process, line speed and treatment tank standard according to process, and maintaining high quality by maintaining temperature and concentration by using temperature controller and concentration controller for each process In addition, the present invention relates to a continuous automation apparatus for electrochemical indirect etching of aluminum sheet, which can reduce cost by using a liquid circulation method to prevent loss of liquid.

In general, in order to give surface characteristics of kitchen utensils or electronic / mechanical parts, fluorocarbon resin is coated on an aluminum sheet.

In order to coat the surface of the plate used as the kitchen utensils, a method of coating the fluorocarbon resin after roughening the surface mechanically, chemically, and electrochemically in order to increase the adhesion of the surface is applied.

Conventional conventional method is to install aluminum plate on rack, etch it, and then go through a series of processes such as water washing and anodizing, take out of rack and coat carbon fluorocarbon resin to produce products. Not only does it consist of repetition and removal of work, but also inter-process work is done automatically by hand and hoist.

Due to the manual work performed between these processes, productivity is low, and there is a difficulty in maintaining quality due to inadequate treatment or delay in processing time, and workers are avoided as 3D businesses due to mist or gas of cleaning and etching solutions generated during production. As a result, the production efficiency is lowered and the production cost is increased.

In order to achieve the above object, the present invention has developed a cleaning, washing, activation treatment, electrochemical indirect etching, neutralization treatment, anodizing coating process suitable for inline process automation close to unmanned in order to maintain a low cost and a constant high quality In addition, the continuous automation system for the electrochemical indirect etching of aluminum sheet, which is designed to efficiently manage the device by developing the line transfer facility, the solution management and indirect etching of the treatment tank and the anodized film treatment according to the process. The purpose is to provide.

In order to achieve the above object, the present invention is a chemical cleaning tank for removing the foreign matter adhered to the surface by spraying sulfuric acid (H ₂ SO ₄ ) solution after mechanically polished by receiving the aluminum plate, and the discharge of the plate Washing means comprising a first water washing tank for spraying water on the upper and lower surfaces to clean the water; Roughness homogenizing tank for uniformly treating the surface roughness by spraying a sodium hydroxide (NaOH) solution on the surface of the aluminum sheet discharged from the cleaning means, and a second washing tank for spraying water to the upper and lower surfaces of the plate discharged from the cleaning means Active treatment means comprising; An electrochemical etching bath for supplying an indirect power supply while injecting hydrochloric acid solution into the aluminum sheet discharged from the active treatment means to form a rough surface on the surface of the aluminum sheet, and spraying and cleaning water on upper and lower surfaces of the sheet discharged therefrom. An electrochemical indirect etching means composed of a third washing tank; A neutralization tank for neutralizing the nitric acid (HNO ₃ ) solution by spraying the surface of the aluminum sheet discharged from the electrochemical indirect etching means, and a fourth washing tank for spraying and cleaning water on the upper and lower surfaces of the sheet discharged therefrom. Neutralization processing means; Anodizing film treatment tank for supplying an indirect power supply while injecting sulfuric acid (H ₂ SO ₄ ) solution onto the surface of the aluminum sheet discharged from the neutralization means to form an anodized film, and water on the upper and lower surfaces of the sheet discharged therefrom. Anodic oxidation film treatment means comprising a fifth washing tank for spraying and washing; Electrochemical indirect etching of an aluminum plate, comprising a washing and drying means consisting of a hot water bath for completely immersing the plate material discharged from the anodizing means into hot water and a dryer for drying the clean plate. Provides a continuous automation system for the.

In addition, the present invention, the chemical cleaning tank, roughness equalization tank and the neutralization treatment tank is spray nozzle located in the upper portion of the transfer roller arranged at regular intervals therein, and the storage tank piped with an auxiliary filter in the lower, and Electrochemical of the aluminum plate, characterized in that it comprises a heater connected to the temperature sensor installed on one side is installed in the lower storage tank, and a stock solution tank connected to the concentration sensor installed on one side of the storage tank to supply the solution stock solution It provides a continuous automation device for indirect etching,

In addition, the present invention is the first to fifth washing tanks are spray nozzles located in the upper and lower parts of the transfer roller disposed at regular intervals therein, a storage tank piped with an auxiliary filter at the bottom, and the temperature installed on one side thereof Continuous for electrochemical indirect etching of aluminum sheet, characterized in that it comprises a heater connected to the sensor installed in the lower storage tank, and a pure water tank connected to the concentration sensor installed on one side of the storage tank to supply pure water. Provide automation equipment.

In addition, the present invention, the electrochemical etching bath is located in the space between the feed rollers disposed at a predetermined interval therein, a rectifier for supplying power thereto, the injection nozzle located on the upper portion of the electrode, and an auxiliary filter at the bottom An auxiliary tank having a pipe, a filtration and circulation pump piped thereto to supply a solution to the injection nozzle, a heater installed at a lower portion of the auxiliary tank while being connected to a temperature sensor installed at one side of the auxiliary tank, and the auxiliary tank It is connected to the concentration sensor installed on one side of the tank to provide a continuous automation device for electrochemical indirect etching of aluminum plate, characterized in that it comprises a stock solution tank for supplying the solution stock solution,

In addition, the anodizing tank has an electrode located in the space between the transfer roller disposed at a predetermined interval therein, a rectifier for supplying power thereto, a spray nozzle located at the top of the electrode, and an auxiliary filter at the bottom And a heat exchanger connected to a storage tank connected to the storage tank while being connected to a storage tank, which is connected to the storage tank, a filtration and circulation pump to supply a solution to the injection nozzle, and a temperature sensor installed at one side of the storage tank. It is connected to the concentration sensor installed on one side of the storage tank provides a continuous automation device for electrochemical indirect etching of aluminum plate, characterized in that it comprises a stock solution tank for supplying the solution stock solution.

In addition, the hot water bath of the present invention is to provide a continuous automation device for the electrochemical indirect etching of the aluminum plate, characterized in that consisting of a heater installed in the lower portion, and a transfer roller installed to be immersed in the water contained therein. ,

In addition, the electrochemical etching bath and the anodizing film treatment tank of the present invention is a continuous automation apparatus for the electrochemical indirect etching of aluminum sheet, characterized in that the diaphragm is installed close to the upper portion of the transfer roller disposed at a predetermined interval therein. to provide.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the present invention.

1 is a process diagram of a continuous automation apparatus for electrochemical indirect etching on an aluminum sheet according to the present invention.

As shown in FIG. 1, the continuous automation apparatus for the electrochemical indirect etching of aluminum sheet is largely divided into a washing step, an activation treatment step, an electrochemical indirect etching step, a neutralization step, an anodizing step, and a cleaning drying step. It is installed separately.

That is, the washing step is a process for removing the oil and foreign matters attached to the surface of the aluminum plate by removing sulfuric acid (H ₂ SO ₄ ) solution,

The activation treatment step is a process of uniformly treating the surface roughness by spraying sodium hydroxide (NaOH) solution on the surface of the cleaned aluminum plate, and then cleaning,

The electrochemical indirect etching step is a process of forming a constant surface roughness by spraying hydrochloric acid solution while supplying an indirect power to the aluminum plate is treated with uniform surface roughness,

The neutralization step is a process of neutralizing by spraying nitric acid (HNO ₃ ) solution on the surface of the aluminum plate having a constant surface roughness, and then cleaning,

The anodizing step is a step of forming an anodized film on the surface by spraying sulfuric acid (H ₂ SO ₄ ) solution while supplying indirect power to the neutralized aluminum sheet material, and then cleaning.

Finally, the washing and drying step is a process of dipping the anodized aluminum plate in hot water to remove the sealing and remaining acid components, and then drying with hot air.

2 is a conceptual diagram showing the overall configuration of a continuous automation apparatus for electrochemical indirect etching of aluminum sheet according to the present invention.

As shown in Figure 2, the continuous automation apparatus for the electrochemical indirect etching of the aluminum plate according to the present invention, first, the transfer line of the aluminum plate (1) is configured as a feed roller (15).

The feed roller 15 used in the apparatus of the present invention is configured to be driven by a drive motor and a speed reducer, a chain (not shown) for power transmission, and in particular, the feed roller 15 is made of a chemical-resistant material at about 300 ° C. It can withstand the temperature of the plate, and has an outer diameter of 50 ~ 90mm by coating 10 ~ 30mm shaft inside and elastic rubber material on the outside so that it can be conveyed with close contact force with the plate 1 being conveyed. The distance between rollers is arrange | positioned at 50-150 mm.

The feed roller 15 having the above configuration is configured to be continuously installed by continuously installing the respective device units.

As described above, the apparatus of the present invention includes the cleaning means 10, the activation treatment means 20, the electrochemical indirect etching means 30, the neutralization treatment means 40, the anodizing means 50, and the cleaning drying. Separately installed by the means 60, washing tanks (3, 5, 7, 9, 12) and the washing tank 13 of the washing and drying means (60), which are installed in each device unit additionally installed at least one The cleaning performance of the processed aluminum sheet 1 can be improved.

Figure 3 is a device connection diagram showing the configuration of each treatment bath constituting a continuous automation device for electrochemical indirect etching of aluminum sheet according to the present invention.

Each treatment bath constituting the present invention, that is, the chemical cleaning tank (2), roughness homogenization tank (4) and the neutralization treatment tank (8) is provided with a plurality of feed rollers (15) described above at regular intervals, The injection nozzle 22 located above the feed roller 15 is piped to the distribution pipe 21 to be positioned.

The injection nozzle 22 is configured to be sprayed from the upper portion in an amount of 1 to 10 l / min in a nozzle size of 1 ~ 7 mm in diameter so that the treatment solution can be evenly sprayed on one surface of the aluminum plate (1), the nozzle 22 The interval of is to be arranged in the center between the feed roller 15 and the roller 15 at a predetermined interval in the range of 50 ~ 150 mm in consideration of the nozzle diameter.

When the filtration and circulation pump 16 installed in the storage tank 24 piped to the injection nozzle 22 installed as described above transfers the solution and supplies the solution, the solution is sprayed onto the plate 1,

When sprayed and treated on the surface of the aluminum plate 1 to which the solution is transferred from the spray nozzle 22, the sprayed solution flows into the storage tank 24 installed in the lower portion of each of the treatment baths 2, 4, and 8. ,

By entering the storage tank 24 is filtered through the auxiliary filter 23 installed in the pipe to prevent the mixture of the reaction product or foreign substances contained in the solution to extend the life of the solution and to maintain the performance of the treatment solution during recycling.

In addition, each treatment bath (2, 4, 8) is made of a material that is chemically resistant and can withstand a temperature of about 150 ℃, the outlet of the outlet to allow the solution to flow into the storage tank 24 installed in the lower pipe The size is adjusted to smooth the reaction between the plate (1) and the solution by designing the flow of the solution to the top of the plate in the range of 5 ~ 15㎜ and then flow down in consideration of the flow rate.

In addition, the storage tank 24 is provided with a temperature sensor 26 for sensing the temperature of the solution on one side, the heater 25 is connected to the lower portion of the storage tank 24 so as to operate according to the detected temperature Install on.

In addition, the other side of the storage tank 24 is provided with a concentration sensor 27 for measuring the concentration of the solution, connected to the supply pump 29 so that it can be supplied from the feed tank 28 for supplying the solution stock solution Pipe is installed in the storage tank (24).

Figure 4 is a device connection diagram showing the configuration of each flush tank constituting a continuous automation device for electrochemical indirect etching of the aluminum sheet according to the present invention.

As shown in Figure 4, the first to fifth washing tanks (3, 5, 7, 9, 12) constituting the present invention is provided with a plurality of the transfer roller 15 described above at regular intervals, The injection nozzles 38 located at the upper and lower portions of the feed roller 15 are located in the upper and lower distribution pipes 37.

The injection nozzle 38 is configured to be sprayed in an amount of 1 to 10 l / min with a nozzle size in the range of 1 ~ 7 mm in diameter so that the treated water can be evenly sprayed on both sides of the aluminum sheet (1), the injection nozzle 38 The interval is to be disposed in the center between the transfer roller 15 and the roller 15 at a predetermined interval in the range of 50 ~ 150 mm in consideration of the nozzle diameter.

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When the filtration and circulation pump 16 installed in the storage tank 31 piped to the injection nozzle 38 installed as described above transfers water and supplies water, the solution is sprayed onto the plate 1,

When the water transferred from the spray nozzle 22 is sprayed and treated on the surface of the aluminum plate 1, the sprayed water is stored in a storage tank installed at a lower portion of each of the washing tanks 3, 5, 7, 9, and 12 ( 31),

By entering the storage tank 31 is filtered through the auxiliary filter 36 installed in the pipe to prevent the mixing of the reaction product or foreign matter contained in the solution to extend the life of the water and improve the recycling efficiency.

In addition, each washing tank (3, 5, 7, 9, 12) is made of a chemical-resistant material that can withstand a temperature of about 150 ℃, the size of the outlet to let water flow into the storage tank (31) To make it as large as possible so that the plate (1) is not submerged in water.

In addition, the storage tank 31 is provided with a temperature sensor 32 for sensing the temperature of the solution on one side, the heater 39 is connected to the lower portion of the storage tank 31 to operate according to the detected temperature Install on.

In addition, the other side of the storage tank 31 is provided with a concentration sensor 33 for measuring the concentration of the wash water, the supply pump 34 so that it can be connected to supply from the pure water tank 35 to supply pure water Is piped to the storage tank 31.

5 is a device diagram showing an electrochemical etching means constituting a continuous automation apparatus for indirect electrochemical etching of aluminum sheet according to the present invention.

As shown in FIG. 5, the electrochemical etching bath 6 constituting the present invention is provided with the feed rollers 15 arranged on the upper portion at regular intervals.

As described above, the feed roller 15 is configured to be driven by a power transmission motor, a speed reducer, and a chain (not shown). Particularly, the feed roller 15 is chemically resistant and has a temperature of about 300 ° C. It is made of material that can withstand and be transported with adhesion to the plate (1), and has an outer diameter of 50 to 90 mm by coating a 10-30 mm shaft inside and an elastic rubber material on the outside, and conveying roller (15). ) And the distance between the rollers is 50 ~ 150㎜.

On the other hand, the electrochemical etching bath (6) constituting the present invention is provided with an electrode 45, the power contact of the electrode 45 in the process of power supply is installed in accordance with the surface treatment direction of the plate material (1) The power supply should be designed to work smoothly.

The electrode 45 is positioned so that the interval between the roller 15 and the roller 15 is 1 ~ 15mm in the interposed space of the installed feed roller 15, the electrode 45 is a rectifier 41 for supplying power and the electrical wiring ( 48).

In addition, the electrode 45 is composed of a positive electrode and a negative electrode, the material of the positive electrode using a carbon rod in consideration of the amount of current passing through it in the form of a rectangular parallelepiped so as to maintain a distance from the plate 1 to 1 ~ 15 mm It is configured to maximize the effect of the etching by making contact with the solution to ensure a smooth power supply.

In addition, the diaphragm 47 is provided before the arrangement of the anode after the anode and the cathode in the electrode 45 so that the current does not affect the next electrode.

An injection nozzle 46 for injecting a solution is installed on an upper portion of each electrode 45 installed as described above.

That is, the injection nozzle 46 is to be sprayed from the upper portion in the amount of 1 ~ 10ℓ / min with a nozzle size in the range of 1 ~ 7㎜ diameter so that the treatment solution is evenly sprayed on one surface of the plate 1 to be transferred, The interval is to be disposed between the feed roller 15 and the roller, that is, the upper portion of the electrode 45 at a predetermined interval in the range of 50 ~ 150 mm in consideration of the nozzle diameter.

The treatment solution injected into the injection nozzle 46 installed as described above is once accommodated in the treatment tank 6a, and when the water level of the treatment tank 6a becomes high and the used solution overflows to both sides, the solution is piped to the lower part. It flows into the installed storage tank 43.

Since the pipe part of the storage tank 43 is additionally provided with an auxiliary filter 44 for preventing the mixing of the reaction product or foreign matter contained in the used solution, the life of the solution flowing into the storage tank 43 Can be extended and the performance of the treatment solution can be maintained during recycling.

Therefore, the storage tank 43 is piped so that the treatment solution can be stably supplied to the injection nozzle 46 through the filtration and circulation pump 42 at all times.

The treatment tank 6a provided inside the electrochemical etching bath 6 is made of a material that can withstand a temperature of about 150 ° C. while being made of a material having chemical resistance in the above process.

In addition, the size of the outlet to allow the treatment solution flows into the storage tank 43 is designed so that the solution is filled in the range of 5 ~ 15㎜ based on the surface of the plate in consideration of the flow rate and then flow down to the plate (1) Control the reaction between and the solution.

In addition, the electrochemical etching bath (6) is provided with a separate temperature control means, which is connected to the temperature sensor 49 installed on one side of the storage tank 43, the heater installed in the lower portion of the storage tank (43) 48).

That is, when the temperature of the solution is detected from the temperature sensor 49, the heater 48 is configured to operate automatically accordingly.

In addition, the electrochemical etching tank 6 of the present invention is provided with a separate concentration adjusting means on one side, which is connected to the concentration sensor 53 installed on one side of the storage tank 43 to supply the feed solution for solution 52 and the stock solution tank 51 piped thereto.

That is, when the concentration of the solution contained in the storage tank 43 is sensed from the concentration sensor 53, the supply pump 52 is operated accordingly to configure the feedstock of the solution from the stock solution tank 51.

FIG. 6 is an apparatus diagram showing anodizing means for constituting a continuous automation apparatus for electrochemical indirect etching of an aluminum sheet according to the present invention. The apparatus is configured as shown in Figure 3, but similar to the electrochemical etching apparatus, the difference is in the power supply to place the negative electrode on the upper portion of the plate and the positive electrode on the lower portion of the plate to face the negative electrode of the plate The surface is anodized.

As shown in FIG. 6, the anodizing film treatment tank 11 constituting the present invention is almost similar to the configuration of the electrochemical etching bath 7 described above, and the only difference is that the electrode (in the power supply) A cathode 45b of 45 is disposed on the upper portion of the plate 1, and an anode 45a is disposed below the plate 1, so that the cathode 45b and the anode 45a of the electrode 45 face each other. It is configured to the surface of the plate material 1 to be transported by anodizing.

In addition, the above-described electrochemical etching tank 7 is provided with temperature control means (temperature sensor, heater) for controlling the temperature in the storage tank 43, while the anodizing film treatment tank 11 is Since the heat exchanger 61 is piped with the storage tank 43 instead of the heating means, the temperature of the solution is kept constant according to the temperature detected by the temperature sensor 49.

The other device portion is configured similarly to the configuration of the electrochemical etching bath 7 described above.

The aluminum plate 1, which is coated and cleaned by the anodizing film treatment tank 11 having the above configuration, enters the cleaning and drying means 60,

The entered aluminum sheet 1 is immersed in hot water along the feed roller 15 to the hot water bath 13 and transported, and the final cleaning operation is performed.

The plate 1, in which the cleaning operation is completed in the bath tub 13, is discharged from the water in the bath tub 13 by the transfer roller 15 and transferred to the dryer 14, and the aluminum sheet transferred to the dryer 14. (1) is completely dried and discharged by hot air drying.

Continuous automation device for the electrochemical indirect etching of aluminum plate in the present invention configured as described above can complete the automation line of the finished product by linking the aluminum plate (1) with the finished aluminum continuous automatic coating device.

As described above, the present invention develops cleaning, water washing, activation treatment, electrochemical indirect etching, neutralization treatment, and anodizing coating process for near-unmanned in-line process automation to maintain low cost and constant high quality. In line with the process, we developed the line transfer facility, treatment tank solution management device, supply device, power supply device, etc., and configured the device for mass production to reduce the unit cost of the product. It is a useful technology that can maintain constant high quality and prevent cost loss by using automatic solution control and solution circulation method.

Claims (8)

A chemical cleaning tank (2) that receives an aluminum sheet (1) and sprays sulfuric acid (H ₂ SO ₄ ) solution to remove foreign substances adhering to the surface, and sprays and cleans by spraying water on upper and lower surfaces of the sheet discharged therefrom. Washing means (10) comprising a first washing tub (3); On the surface of the aluminum sheet 1 discharged from the cleaning means 10, the surface of the roughness homogenizing tank 4 for uniformly treating the surface roughness by spraying a sodium hydroxide (NaOH) solution, and the upper and lower surfaces of the plate discharged therefrom. An active treatment means (20) comprising a second washing tank (5) for spraying and washing water; An electrochemical etching bath 6 for supplying an indirect power supply while spraying hydrochloric acid solution to the aluminum sheet 1 discharged from the active treatment means 20 to form a rough surface on the surface of the aluminum sheet 1; Electrochemical indirect etching means (30) comprising a third flush tank (7) for spraying and cleaning water on upper and lower surfaces of the discharged sheet; Neutralization tank (8) for injecting and neutralizing the nitric acid (HNO ₃ ) solution on the surface of the aluminum plate 1 discharged from the electrochemical indirect etching means 30, and water on the upper and lower surfaces of the plate discharged therefrom A neutralization means (40) comprising a fourth water washing tank (9) for spraying and washing the water; An anodizing film treatment tank 11 for supplying an indirect power supply while injecting sulfuric acid (H ₂ SO ₄ ) solution onto the surface of the aluminum plate 1 discharged from the neutralization means 40 to form an anodized film; Anodizing film treatment means (50) comprising a fifth washing tank (12) for spraying and cleaning water on upper and lower surfaces of the plate discharged therefrom; It consists of a washing and drying means (60) comprising a hot water bath (13) for completely immersing the plate material discharged from the anodic oxidation film treatment means (50) in hot water, and a dryer (14) for drying the clean plate. An electrochemical indirect etching apparatus of an aluminum sheet; The aluminum plate 1 comprises the cleaning means 10, the active treatment means 20, the electrochemical indirect etching means 30, the neutralization treatment means 40, the anodizing means 50 and The cleaning and drying means 60 are connected to form a transfer line, and are treated with chemicals to withstand temperatures of 300 ° C., and are disposed on a plurality of transfer rollers 15 coated with an elastic rubber material at an outer diameter to be continuously processed. Continuous automation device for the electrochemical indirect etching of aluminum sheet. The method according to claim 1, The chemical cleaning tank (2), roughening uniformity tank (4) and the neutralization treatment tank (8) is a spray nozzle 22 located on the upper portion of the transfer roller 15 disposed at regular intervals therein, and an auxiliary filter at the bottom A storage tank 24 piped with a 23, a heater 25 connected to a temperature sensor 26 installed at one side thereof, and a heater 25 installed below the storage tank 24, and one side of the storage tank 24. Continuous automation device for electrochemical indirect etching of aluminum sheet, characterized in that it comprises a stock solution tank 28 is connected to the concentration sensor 27 installed in the supply solution stock solution. The method according to claim 1, The first to fifth flush tubs 3, 5, 7, 9, and 12 are spray nozzles 38 positioned at upper and lower portions of the transfer roller 15 disposed at regular intervals therein, and an auxiliary filter 23 at the lower portion thereof. And an auxiliary tank 31 piped with a heater, a heater 39 installed under the auxiliary tank 31 connected to the temperature sensor 32 installed at one side thereof, and installed at one side of the auxiliary tank 31. Continuous automation device for electrochemical indirect etching of aluminum sheet, comprising a pure water tank (35) connected to the concentration sensor (33) to supply pure water. The method according to claim 1, The electrochemical etching bath 6 includes an electrode 45 located in a space between the transfer rollers 15 arranged at a predetermined interval therein, a rectifier 41 for supplying power thereto, and an upper portion of the electrode 45. And a storage tank 43 which is piped with an injection nozzle 46 positioned at the bottom, and an auxiliary filter 44 at a lower portion thereof, and a filtration and circulation pump 42 which is connected to this and supplies a solution to the injection nozzle 46. And, connected to the temperature sensor 49 installed on one side of the storage tank 43, the heater 48 is installed on the lower portion of the storage tank 43, and the concentration sensor 53 installed on one side of the storage tank 43 Continuous automation device for electrochemical indirect etching of aluminum sheet, characterized in that it comprises a stock solution tank 51 for supplying the solution stock solution. The method according to claim 1, The anodic oxidation film treatment tank 11 is located in the space between the transfer roller 15 disposed at a predetermined interval therein, the anode 45a installed under the plate 1 to be transported and the cathode 45b installed at the top. A storage tank having an electrode 45, a rectifier 41 for supplying power thereto, an injection nozzle 46 positioned at an upper portion of the electrode 45, and an auxiliary filter 44 at a lower portion thereof. The storage tank 43 is connected to the filtration and circulation pump 42 for supplying a solution to the injection nozzle 46 and the pipe 43 and the temperature sensor 49 installed on one side of the storage tank 43. Heat exchanger 61 is connected to the pipe and controls the temperature of the solution, and is connected to the concentration sensor 53 installed on one side of the storage tank 43 and the stock solution tank 51 for supplying the solution stock solution Continuous automation device for electrochemical indirect etching of aluminum sheet. The method according to claim 1, The hot water bath 13 is a continuous automatic device for electrochemical indirect etching of aluminum sheet, characterized in that the heater 62 is installed in the lower portion, and the transfer roller 15 is installed to be immersed in the water contained therein. . The method according to claim 1 or 5, The electrochemical etching bath (6) is a continuous automation device for the electrochemical indirect etching of aluminum sheet, characterized in that the diaphragm 47 is installed close to the upper portion of the transfer roller 15 disposed at a predetermined interval therein. The method according to claim 1 or 6, The anodizing film treatment tank 11 is a continuous automation apparatus for electrochemical indirect etching of aluminum sheet, characterized in that the diaphragm 47 is installed close to the upper portion of the transfer roller 15 disposed at a predetermined interval therein. .

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