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Middle-high voltage electrode foil five-section formation two-stage liquid feed production method

A production method and electrode foil technology, applied in the direction of electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve the problems of small space for improving the dielectric properties of the oxide film of the production vehicle speed, and achieve the improvement of product performance indicators and production. The effect of speed increase and production cost reduction

Active Publication Date: 2013-06-19
宝兴县剑锋制箔电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the formation production lines are 1-stage liquid-fed 4-stage or 5-stage formation. Due to the constraints of equipment and process flow, there is little room for improvement in the production speed and the dielectric properties of the formed foil oxide film.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: A production method of medium and high voltage electrode foil formed into 5 stages into 2 stages of liquid feeding, the method includes the following steps in sequence:

[0025] Hydration treatment: Take the corroded aluminum foil with a purity of 99.99% and immerse it in pure water at 95°C for 10 minutes;

[0026] Primary chemical conversion treatment: Take out the aluminum foil after the hydration treatment and place it in an aqueous solution of 1% boric acid and 1% ammonium adipate, and then heat it at 80°C with a current density of 20mA / cm 2 Under the condition of a voltage of 140V, carry out primary formation for 6 minutes;

[0027] Rinse the aluminum foil after primary chemical conversion with water;

[0028] Secondary chemical conversion treatment: place the aluminum foil after the primary chemical conversion treatment in 1% boric acid and 0.8% ammonium adipate aqueous solution, and then heat it at 80°C with a current density of 20mA / cm 2 Under the c...

Embodiment 2

[0041] Embodiment 2: A production method of medium and high voltage electrode foil formed into 5 stages into 2 stages of liquid feeding, the method includes the following steps in sequence:

[0042] Hydration treatment: Take the corroded aluminum foil with a purity of 99.99% and immerse it in pure water at 95°C for 12 minutes;

[0043] Primary chemical conversion treatment: Take out the aluminum foil after the hydration treatment and place it in an aqueous solution of 1.5% boric acid and 0.8% ammonium adipate, and then heat it at 85°C with a current density of 25mA / cm 2 Under the condition of voltage of 140V, carry out primary formation for 10 minutes;

[0044] Rinse the aluminum foil after primary chemical conversion with water;

[0045] Secondary chemical conversion treatment: place the aluminum foil after the primary chemical conversion treatment in 1.5% boric acid and 0.7% ammonium adipate aqueous solution, and then heat it at 85°C with a current density of 25mA / cm 2 Under...

Embodiment 3

[0058] Embodiment 3: A production method of medium and high voltage electrode foil formed into 5 stages into 2 stages of liquid feeding, the method includes the following steps in sequence:

[0059] Hydration treatment: Take the corroded aluminum foil with a purity of 99.99% and immerse it in pure water at 96°C for 15 minutes;

[0060] Primary chemical conversion treatment: Take out the aluminum foil after the hydration treatment and place it in an aqueous solution of 4% boric acid and 0.8% ammonium adipate, and then heat it at 88°C with a current density of 40mA / cm 2 Under the condition of voltage of 140V, carry out primary formation for 10 minutes;

[0061] Rinse the aluminum foil after primary chemical conversion with water;

[0062] Secondary chemical conversion treatment: place the aluminum foil after the primary chemical conversion treatment in 4% boric acid and 0.6% ammonium adipate aqueous solution, and then heat it at 88°C with a current density of 40mA / cm 2 Under t...

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Abstract

The invention discloses a middle-high voltage electrode foil five-section formation two-stage liquid feed production method which sequentially comprises the following steps of hydration processing, one-stage formation processing, two-stage formation processing, one-stage feed, three-stage formation processing, four-stage formation processing, two-stage feed, five-stage formation one-section processing, first roasting, five-stage formation second-section processing, phosphating, five-stage formation three-section processing, second roasting, five-stage formation four-section processing, and post-processing. According to the production method, through improvement on a production procedure, process innovation is matched, the speed of production of products in the same specification is promoted by 30-50%, and performance indexes of pressure rising time, leakage currents, withstand voltage after boiling, the specific volume and the like are effectively improved.

Description

technical field [0001] The invention relates to a production method of electrode foil, in particular to a production method of medium and high voltage electrode foil formed from 5 stages into 2 stages of liquid feeding. Background technique [0002] The chemical formation of aluminum foil is one of the key processes in the manufacture of aluminum anode foil. The chemical achievement of aluminum foil is to use the principle of electrochemistry to anodize the aluminum foil to combine the oxygen atoms in the water with the aluminum atoms. Thus, an oxide film dielectric layer capable of withstanding a specific voltage is formed on the surface of the aluminum foil. Formation can be divided into phosphoric acid series, boric acid series, adipic acid series and non-aqueous series according to the type of chemical formation liquid; according to the application of oxide film, it can be divided into protective film formation and medium layer formation. The former requires the chemic...

Claims

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Application Information

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IPC IPC(8): C25D11/12
Inventor 王风雷李晓强王敬民侯斌邹烨冯名扬
Owner 宝兴县剑锋制箔电子有限公司
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