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Manufacturing method for formed foil of electrolytic capacitor of energy-saving lamp

A technology for electrolytic capacitors and manufacturing methods, applied in the direction of electrolytic capacitors, capacitors, circuits, etc., which can solve the problems of high process temperature, high current density, and low production efficiency, and achieve high efficiency, fast production speed, and energy saving.

Active Publication Date: 2015-04-01
新疆荣泽铝箔制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manufacturing method of this electrode foil requires high temperature, high current density, high energy consumption and low production efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] After immersing an aluminum foil with a purity of 99.99% in pure water at 93°C for 16 minutes; place it in 1wt% hydrogen peroxide, 5wt% adipic acid, 3wt% boric acid and 5wt% ammonium adipate aqueous solution at 65°C , 15mA / (cm 2 ), 120V, after 6 minutes of formation; placed in 1wt% hydrogen peroxide, 3wt% adipic acid, 3wt% boric acid and 3wt% ammonium adipate aqueous solution, 70°C, 15mA / (cm 2 ), 250V, after 6 minutes of formation; after cleaning, the aluminum foil after secondary formation was electrolyzed in 20wt% ammonium adipate solution for 15 minutes under the conditions of 35°C, 30V and 1400A; after cleaning, it was placed in 1wt% hydrogen peroxide, 5wt% boric acid, 8wt% ammonium pentaborate aqueous solution, 79.5°C, 19.5mA / (cm 2 ), 420V, after 6 minutes of formation; placed in 1wt% hydrogen peroxide, 8wt% boric acid, 6wt% ammonium pentaborate aqueous solution, at 79.5°C, 19.5mA / (cm 2 ), 530v, after 7.8 minutes of formation; placed at 550°C fo...

Embodiment 2

[0024] After immersing an aluminum foil with a purity of 99.99% in pure water at 95°C for 20 minutes; place it in 2wt% hydrogen peroxide, 1wt% adipic acid, 1wt% boric acid and 3wt% ammonium adipate aqueous solution at 74.5°C , 19.5mA / (cm 2 ), 120V, after 7 minutes of formation; placed in 2wt% hydrogen peroxide, 1wt% adipic acid, 1wt% boric acid and 1.5wt% ammonium adipate aqueous solution, 74.5°C, 19.5mA / (cm 2 ), 250V, after 7 minutes of formation; after cleaning, electrolyze the aluminum foil after secondary formation in 40wt% ammonium adipate solution at 10°C, 10V and 700A for 10 minutes; after cleaning, place 2wt% hydrogen peroxide, 3wt% boric acid, 7wt% ammonium pentaborate aqueous solution, 75°C, 15mA / (cm 2 ), 420V, after 7 minutes of formation; placed in 2wt% hydrogen peroxide, 3wt% boric acid, 4wt% ammonium pentaborate aqueous solution, at 75°C, 15mA / (cm 2 ), 530v, after 6 minutes of formation; placed at 500°C for 3 minutes; placed in 3wt% boric acid...

Embodiment 3

[0026] After immersing an aluminum foil with a purity of 99.99% in pure water at 94°C for 18 minutes; placed in 1.5wt% hydrogen peroxide, 3wt% adipic acid, 2wt% boric acid and 4wt% ammonium adipate aqueous solution, at 70 ℃, 16mA / (cm 2 ), 120V, after 6.5 minutes of formation; placed in 1.5wt% hydrogen peroxide, 2wt% adipic acid, 2wt% boric acid and 2wt% ammonium adipate aqueous solution, 65°C, 16mA / (cm 2 ), 250V, after 6.5 minutes of formation; after cleaning, electrolyze the aluminum foil after secondary formation in 30wt% ammonium adipate solution at 25°C, 20V and 1200A for 12 minutes; after cleaning, place 1.5wt% hydrogen peroxide, 4wt% boric acid, 7.5wt% ammonium pentaborate aqueous solution, 76°C, 17mA / (cm 2 ), 420V, after 6.5 minutes of formation; placed in 1.5wt% hydrogen peroxide, 5wt% boric acid, 5wt% ammonium pentaborate aqueous solution, at 77°C, 17mA / (cm 2 ), 530v, after 7.2 minutes of formation; placed at 520°C for 2.5 minutes; placed in 6wt% b...

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PUM

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Abstract

The invention discloses a manufacturing method for a formed foil of an electrolytic capacitor of an energy-saving lamp. According to the manufacturing method, four-stage forming is carried out, and corresponding steps are adjusted, which comprises a one-time feed treatment step, a two-time phosphate treatment step, a three-time high-temperature treatment step all well as an additional step; and an oxidant is added in each stage of formation groove to improve process conditions of the formed foil in the production process, and further the chemical reaction temperature and the current density are reduced and the formation time is shortened. According to the manufacturing method disclosed by the invention, the time of each stage of formation time is shortened, electric energy consumed by producing the formed foil is saved by 10 percent and heat energy consumed by the formed foil is saved by 7 percent. The manufacturing method is high in production vehicle speed, high in efficiency and favorable in storage performance of products.

Description

technical field [0001] The invention relates to a chemically formed aluminum foil for a capacitor, in particular to a manufacturing method for producing a chemically formed aluminum foil for an energy-saving lamp electrolytic capacitor. Background technique [0002] The previous manufacturing method of chemical formation foil for medium and high voltage aluminum electrolytic capacitors is to immerse corroded aluminum foil with a purity of 99.99% in pure water at 95-100°C for 10 minutes, take it out and place it in 0.1wt% In an aqueous solution of adipic acid and 2wt% ammonium adipate, at 85°C, the current density is 20mA / (cm 2 ), the voltage is 200v, and the primary formation is 18 minutes; then placed in the aqueous solution of 7wt% boric acid and 0.4wt% ammonium pentaborate, at 85°C, the current density is 20mA / (cm 2 ) and a voltage of 430v, secondary formation for 18 minutes; then placed in an aqueous solution of 7wt% boric acid and 0.3wt% ammonium pentaborate, at ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/055
Inventor 艾立华周运动严民
Owner 新疆荣泽铝箔制造有限公司
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