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Novel etched foil chambering technology

A technology of corroding foil and technology, which is applied in the field of new corroding foil hole reaming, can solve the problems of high cost, low service life of copper rods, large heat generation, etc., and achieve low equipment depreciation cost, low equipment maintenance cost, and low power generation Effect

Inactive Publication Date: 2017-12-22
江苏国瑞科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a new type of corroded foil hole reaming technology, which solves the problems of high cost, high calorific value, and low service life of copper rods due to the use of galvanic corrosion in the existing hole reaming technology.

Method used

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  • Novel etched foil chambering technology
  • Novel etched foil chambering technology
  • Novel etched foil chambering technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Please refer to figure 1 , soak the aluminum foil in the pretreatment solution for 55 seconds, clean it and put it in the primary corrosion mixture of 1% hydrochloric acid, 21% sulfuric acid and 1% aluminum ion at a temperature of 69°C, and apply a current density 0.45A / cm 2 Perform electrolytic corrosion with direct current for 50 seconds, clean it with pure water, put it in a bath solution containing 2% hydrochloric acid at a temperature of 70 ° C, and soak for 50 seconds; after that, clean it with pure water and put it in a bath solution with a temperature of 75 ° C and contain 4% sulfuric acid , 0.1% hydrochloric acid, 0.5ppm copper sulfate, 0.1ml / L phosphoric acid corrosion inhibitor and 1% aluminum ion solution, soak for 800s, then clean the foil sample and dry it.

Embodiment 2

[0036] Please refer to figure 2 , soak the aluminum foil in the pretreatment solution for 80 seconds, clean it and put it in a primary corrosion mixture of 3% hydrochloric acid, 26% sulfuric acid and 4% aluminum ions at a temperature of 70°C, and apply a current density 0.65A / cm 2 Perform electrolytic corrosion with direct current for 90 seconds, clean it with pure water, put it in a bath solution containing 2% hydrochloric acid at a temperature of 76°C, and soak for 75 seconds; after that, clean it with pure water and put it in a bath solution containing 5% sulfuric acid at a temperature of 78°C , 0.3% hydrochloric acid, 0.7ppm copper sulfate, 3ml / L phosphoric acid corrosion inhibitor and 4% aluminum ion solution, soaking time 1150S, then clean the foil sample and dry it.

Embodiment 3

[0038] Please refer to image 3 , soak the aluminum foil in the pretreatment solution for 100 seconds, clean it and put it in a primary corrosion mixture of 5% hydrochloric acid, 30% sulfuric acid and 7% aluminum ions at a temperature of 70°C, and apply a current density 0.80A / cm 2 Perform electrolytic corrosion with direct current for 120 seconds, clean it with pure water, put it in a bath solution containing 2% hydrochloric acid at a temperature of 82°C, and soak for 100 seconds; after that, clean it with pure water and put it in a bath solution with a temperature of 80°C containing 6% sulfuric acid , 0.5% hydrochloric acid, 1ppm copper sulfate, 5ml / L phosphoric acid corrosion inhibitor and 7% aluminum ion solution, soaking time 1300S, then clean the foil sample and dry it.

[0039] The following table 1 is the data related to embodiment 1, 2 and 3 and the existing electrochemical hole expansion comparison:

[0040]

[0041] It can be known from the above table 1 that t...

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Abstract

The invention relates to a novel etched foil chambering technology. The novel etched foil chambering technology comprises the following steps that (1) pretreatment is carried out; (2) first-stage etching hole forming is carried out; (3) medium treatment is carried out; (4) second-stage pure chemistry chambering etching is carried out; and (5) aftertreatment is carried out. The novel etched foil chambering technology is mainly used for solving the problem that in the existing chambering technology, electrocorrosion is adopted, and therefore the factors like high cost, large heat generating amount, short copper bar using service life and the like exist.

Description

technical field [0001] The invention relates to the technical field of aluminum foil corrosion, in particular to a novel corroded foil hole expansion technology. Background technique [0002] At present, the corrosion foil process is galvanic corrosion, which generally includes pretreatment, hole corrosion, hole expansion corrosion, and posttreatment. The key to obtaining high specific capacitance is to form evenly distributed tunnel holes with high density and reasonable size (aperture diameter and pore length) on the surface of aluminum foil. The main function of pretreatment is to remove the oil, impurities and oxide film on the surface of the light foil, improve the surface condition, and promote the formation of uniformly distributed tunnel holes in the next step of the aluminum foil's porosity corrosion; The initial tunnel hole with a certain length and aperture; the effect of hole expansion corrosion is to further galvanize the corrosion on the basis of the initial t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F3/04C23F1/20H01G9/055H01G13/06
CPCC25F3/04C23F1/20H01G9/055H01G13/06
Inventor 宋亮陈华昌陈俊铭张泽远胡涛涛
Owner 江苏国瑞科技有限公司
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