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Power supply solution for formation of electronic aluminum foil at middle-high voltage and application method thereof

An electronic aluminum foil, medium and high voltage technology

Active Publication Date: 2014-04-23
新疆广投桂东电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power supply solution generally uses a specific concentration of ammonium adipate solution. During the production process of using ammonium adipate solution for solution power supply, the power supply solution is prone to turbidity and scale formation, causing wrinkles and wavy edges of the aluminum foil, and it is easy to cause aluminum foil Roller marks, fracturing, and crushing appear on the surface, which seriously affect the product quality; due to the irregular deformation of the aluminum foil, in severe cases, it will cause breakage, production interruption, and great economic losses
In order to prevent greater losses caused by the accumulation of scale, it is generally necessary to stop the machine for about 20 days of continuous production to clean the solution supply tank, which affects production efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Medium voltage 365Vf formation

[0011] The medium-voltage corroded foil is boiled in pure water, and then powered by a conductive roller to perform a one-stage constant-voltage formation in a solution composed of boric acid and ammonium pentaborate, and then the conductivity is formed by citric acid, ammonium citrate and pure water. Supply power to the power supply solution with a pH value of 70-80ms / cm and a pH value of 7.0-7.5. The temperature of the power supply solution is 20-40°C, and then perform secondary, tertiary, and quaternary constant-voltage formation in a solution composed of boric acid and ammonium pentaborate. Then heat treatment, intermediate treatment, repeated chemical conversion 3 times, and post-treatment.

[0012] The power supply solution has been used for 90 days, and no turbidity and scaling have been seen; no substandard products have been produced due to the appearance of the formed foil due to the power supply solution. It can be seen from ...

Embodiment 2

[0014] High voltage 530Vf formation

[0015] The high-pressure corroded foil is boiled in pure water, followed by a first-stage constant-pressure formation in a solution composed of boric acid and ammonium pentaborate with power supplied by a conductive roller, and then formed by diammonium hydrogen citrate, sodium citrate and pure water. A power supply solution with a conductivity of 40-50ms / cm and a pH value of 6.0-6.5 is used for power supply, and the temperature of the power supply solution is 30-40°C, followed by secondary, tertiary, and quaternary constant voltage in a solution composed of boric acid and ammonium pentaborate Formation, heat treatment, intermediate treatment, repeated formation 3 times, and post-treatment.

[0016] The power supply solution has been used for 80 days, and no turbidity and scaling have been seen; no unqualified products in the appearance of formed foil due to the power supply solution have been produced. It can be seen from the actual use ...

Embodiment 3

[0018] Ultra-high voltage 750Vf formation

[0019] The ultra-high pressure corroded foil is boiled in pure water, and then powered by a conductive roller to carry out one-stage constant pressure formation in a solution composed of boric acid and ammonium pentaborate, and then purified by triammonium citrate, citric acid, and potassium citrate. Water is made into a power supply solution with a conductivity of 30-40ms / cm and a pH value of 5.5-6.0 for power supply. The temperature of the power supply solution is 20-25°C, and then the secondary and tertiary chemical formation is carried out in a solution composed of boric acid and ammonium pentaborate. Then, power is supplied by a power supply solution composed of triammonium citrate, citric acid, potassium citrate and pure water with a conductivity of 20-30ms / cm and a pH value of 5.0-5.5. The temperature of the power supply solution is 20-25°C, and then In the solution composed of boric acid and ammonium pentaborate, four-stage a...

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PUM

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Abstract

The invention relates to power supply solution for formation of electronic aluminum foil at middle-high voltage and application method thereof. The power supply solution comprises citric acid and salt thereof, and specifically comprises citric acid, ammonium citrate dibasic, ammonium dihydrogen citrate, ammonium citrate tribasic, potassium citrate, and sodium citrate, one or few of the above components is / are totally dissolved by pure water so as to prepare the power supply solution with conductivity of 20-80ms / cm and pH value of 5.0-7.5. The power supply solution for formation prepared by the method can lower the voltage of a power supply tank, lower energy consumption, effectively improve production efficiency, and improve product quality.

Description

technical field [0001] The invention belongs to the technical field of electronic material manufacturing, and in particular relates to a medium and high voltage electronic aluminum foil formation production power supply solution and a use method thereof. Background technique [0002] The formation of aluminum foil is to use the electrochemical principle to anodize the aluminum foil, and form oxygen atoms in the solution to combine with aluminum atoms, thereby forming an oxide film dielectric layer on the surface of the aluminum foil that can withstand a specific voltage. In order to improve production efficiency and reduce energy consumption, at present, conductive rollers are generally used for power supply, combined with solution conductive power supply for four-stage or above chemical production. Among them, the solution power supply technology is that the aluminum foil is placed between the two titanium anode plates of the liquid power supply tank, the positive pole of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/04
Inventor 宋洪洲杨小飞胡知健陆宝琳杨林桑
Owner 新疆广投桂东电子科技有限公司
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