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Preparation method of high pressure anode foil for aluminum electrolytic capacitor

An aluminum electrolytic capacitor, medium and high voltage technology, applied in the direction of electrolytic capacitors, capacitors, circuits, etc., can solve the problems of large dispersion rate of aluminum foil, damage of aluminum foil surface, deterioration of physical properties of aluminum foil, etc., achieve low heating temperature, ensure physical properties, The effect of not easy to merge holes

Active Publication Date: 2011-01-26
NANTONG XINCHENG ELECTRONICS
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Problems solved by technology

[0002] Nowadays, electrode foils are installed on both sides of each aluminum foil in the reaming tank of the anode foil production line. The number of holes on the aluminum foil is inconsistent, and the size of the pores is also different, so that the discrete rate of the specific volume of the aluminum foil is relatively large. , resulting in poor physical properties of the aluminum foil, i.e. reduced bending and tension

Method used

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specific Embodiment approach

[0017] A specific embodiment of the production process of the medium and high voltage anode foil for aluminum electrolytic capacitors of the present invention comprises the following steps: alkali cleaning: the foil feeding machine sends the aluminum foil through the floating rack into the alkali washing tank equipped with 500-600L sodium hydroxide, The time of alkali washing is 80-120S, mainly to clean the oil stains on the aluminum foil; one-time washing: the aluminum foil after alkali washing is put into a clear water tank with 500-600L of clear water for one washing, and the washing time is 80-120S; : The aluminum foil after the primary water washing enters the porosity tank equipped with electrode foil and 1200L sulfuric acid or hydrochloric acid for porosity. The aluminum foil with good holes enters the clear water tank with 500-600L of clear water for secondary washing. Deep drilling and reaming are carried out in the hole groove by pure chemical method. The temperatur...

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Abstract

The invention discloses a preparation method of high pressure anode foil for aluminum electrolytic capacitor, comprising the following steps: alkaline washing, first washing, hole digging, second washing, deep punching by using pure chemical method, third washing, post-processing, washing for many times, drying and coiling. The invention has the advantage of simple flow, less cost and high product quality.

Description

Technical field: [0001] The invention relates to a production process of medium and high voltage anode foil for aluminum electrolytic capacitors. Background technique: [0002] Nowadays, electrode foils are installed on both sides of each aluminum foil in the reaming tank of the anode foil production line. The number of holes on the aluminum foil is inconsistent, and the size of the pores is also different, so that the discrete rate of the specific volume of the aluminum foil is relatively large. , leading to the deterioration of the physical properties of the aluminum foil, that is, the reduction of bending and pulling force. Invention content: [0003] The object of the present invention is to overcome the above disadvantages and provide a production process of medium and high voltage anode foil for aluminum electrolytic capacitors with simple process, reduced cost and improved product quality. [0004] The purpose of the present invention is achieved through the follo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/045H01G9/048
Inventor 朱金保
Owner NANTONG XINCHENG ELECTRONICS
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