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High-specific-volume and high-performance corrosion foil system

A high-performance, foil-corrosion technology, applied in the electrolysis process, electrolysis components, etc., can solve the problems of uneven pores, tumbling and boiling of the bath solution, and affecting material transmission, etc., to achieve high hole formation efficiency, uniform hole formation, and improved corrosion ratio Content effect

Inactive Publication Date: 2021-05-28
江苏国瑞科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. When the light foil is on the linked corrosion equipment, the back side of the foil is affected by the pressure, and the oxide film on the back side is thicker than the front side. When holes are made and expanded, it is easy to cause fewer and irregular holes on the back side, which will affect the corrosion of the foil. specific volume increase
[0004] 2. During the reaction process of electrolytic aluminum, a large amount of hydrogen gas is produced, which causes the bath solution to roll and boil, which will cause uneven diffusion of aluminum ions in the bath solution, affect material transmission, and cause uneven pores on both sides
[0005] That is to say, by solving the problem of uniformity of holes on the front and back sides, the specific volume of the corroded foil can be raised to a higher level. Therefore, the present invention develops a high specific volume and high-performance corroded foil system to solve the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Please refer to figure 1 , a high specific volume and high performance corroded foil system, the system includes symmetrically arranged graphite pole plates 2, an aluminum foil 1 is arranged between the graphite pole plates, and the opposite faces of the two graphite pole plates are symmetrically arranged. There are several installation holes, nozzles 7 are installed in the installation holes, three hydraulic chambers 3 are installed on the opposite sides of the two graphite plates, the three hydraulic chambers correspond to the same number of nozzles, and the three hydraulic chambers correspond to the same number of nozzles. The hydraulic chambers are connected to the acid and alkali resistant magnetic pump 6 through a liquid supply pipeline 5, and the hydraulic chambers and the liquid supply pipelines are connected through a rotameter.

[0020] The rotameter includes a rotameter (1) 4-1, a rotameter (2) 4-2, a rotameter (3) 4-3, a rotameter (4) 4-4, a rotameter ( 5) ...

Embodiment 2

[0027] (1) Pretreatment: Place the electronic aluminum foil in a 20wt% sulfuric acid 1wt% hydrochloric acid solution at a temperature of 60°C-65°C for 60 seconds.

[0028] (2) First-level corrosion pores: After cleaning the pretreated aluminum foil, it is energized and corroded in a mixed solution containing 2.0wt% hydrochloric acid, 40wt% sulfuric acid and 1.0wt% aluminum ions at a temperature of 70°C, and the current density is 0.6 A / cm2, the time is 120 seconds, and flowmeters 1 and 4 are 4m³ / h;

[0029] Flow meters 2 and 4 are 4m³ / h; flow meters 3 and 6 are 4m³ / h.

[0030] (3) Secondary corrosion hole expansion: the cleaned perforated foil is energized in a mixed solution containing 10wt% nitric acid, 0.1g / L polypropylene alcohol (10000) and 4.0wt% aluminum ions at a temperature of 69 ° C and subjected to DC corrosion , current density 0.15A / cm2, time 800 seconds.

[0031] (4) Post-treatment: soak the reamed foil after cleaning for 80 seconds in a solution containing 5wt...

Embodiment 3

[0033] (1) Pretreatment: Place the electronic aluminum foil in a 20wt% sulfuric acid 1wt% hydrochloric acid solution at a temperature of 60°C-65°C for 60 seconds.

[0034] (2) First-level corrosion pores: After cleaning the pretreated aluminum foil, it is energized and corroded in a mixed solution containing 2.0wt% hydrochloric acid, 40wt% sulfuric acid and 1.0wt% aluminum ions at a temperature of 70 ° C, and the current density is 0.6 A / cm2, the time is 120 seconds, and flowmeters 1 and 4 are 5m³ / h;

[0035] Flow meters 2 and 5 are 4m³ / h; flow meters 3 and 6 are 3m³ / h

[0036] (3) Secondary corrosion expansion: the cleaned perforated foil is energized in a mixed solution containing 10wt% nitric acid, 0.1g / L polypropylene alcohol (10000) and 4.0wt% aluminum ions at a temperature of 69°C , current density 0.15A / cm2, time 800 seconds.

[0037] (4) Post-treatment: soak the reamed foil after cleaning for 80 seconds in a solution containing 5wt% nitric acid at a temperature of 50...

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Abstract

The invention relates to the technical field of corrosion foil chambering, in particular to a high-specific-volume and high-performance corrosion foil system. The system comprises symmetrically-arranged graphite polar plates, aluminum foil is arranged between the graphite polar plates, a plurality of mounting holes are symmetrically formed in the opposite surfaces of the two graphite polar plates, nozzles are mounted in the mounting holes, three hydraulic cavities are formed in the back surfaces of the two graphite polar plates, the three hydraulic cavities correspond to the same number of nozzles, the three hydraulic cavities are connected with an acid and alkali resistant magnetic pump through liquid supply pipelines, and the hydraulic cavities and the liquid supply pipelines are connected through float flow meters. The system has the advantages of high hole forming efficiency, uniform hole forming, capability of effectively improving the aluminum foil corrosion specific volume and the like.

Description

technical field [0001] The invention relates to the technical field of corroded foil hole expansion, in particular to a high specific volume and high performance corroded foil system. Background technique [0002] At present, the distribution of the front and back of the corrosion foil produced by the existing corrosion equipment is different. The main reasons are as follows: [0003] 1. When the light foil is on the linked corrosion equipment, the back side of the foil is affected by the pressure, and the oxide film on the back side is thicker than the front side. When holes are made and expanded, it is easy to cause fewer and irregular holes on the back side, which will affect the corrosion of the foil. specific volume increase [0004] 2. During the reaction process of electrolytic aluminum, a large amount of hydrogen gas is produced, which causes the bath solution to roll and boil, which will cause uneven diffusion of aluminum ions in the bath solution, affect material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F7/00C25F3/04
CPCC25F7/00C25F3/04
Inventor 王卫国宋亮谷正潘红军
Owner 江苏国瑞科技有限公司
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