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Electronic aluminium foil for electrolytic capacitor

An electrolytic capacitor and electronic technology, applied in the direction of electrolytic capacitors, capacitors, circuits, etc., can solve the problems of reducing cost and high cost of aluminum foil, achieving good breakdown resistance, realizing localization, and saving production costs.

Inactive Publication Date: 2003-04-16
HEILONGJIANG TONGYU MEDICINE PACKAGING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the high cost of the existing aluminum foil, the invention provides an electronic aluminum foil for electrolytic capacitors, which can greatly reduce the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Example 1: The aluminum foil produced by Heilongjiang Tongyu Aosi Aluminum Industry Co., Ltd. according to the above scheme 1 is used for electrolytic capacitors. Its strength is 255Mpa, elongation is greater than 1, excellent toughness, smooth surface, matt, No ash powder, specific volume is 600uF / cm 2 , Reliable use, good stability, replace foreign products, reduce many links in the middle, greatly reduce the cost, and reduce the cost by 30%, which is very popular among users.

Embodiment 2

[0010] Example 2: The aluminum foil produced by Heilongjiang Tongyu Aosi Aluminum Co., Ltd. according to the above scheme 2 is used in electrolytic capacitors. Its strength is 260Mpa, elongation is greater than 1, excellent toughness, smooth surface, matt, No ash powder, specific volume is 580uF / cm 2 , Reliable use, good stability, replace foreign products, reduce many links in the middle, greatly reduce the cost, and reduce the cost by 30%, which is very popular among users.

Embodiment 3

[0011] Example 3: The aluminum foil produced by Heilongjiang Tongyu Aosi Aluminum Co., Ltd. according to the above scheme 3 is used for electrolytic capacitors. Its strength is 262Mpa, elongation is greater than 1, excellent toughness, smooth surface, matt, No ash powder, specific volume is 560uF / cm 2 , Reliable use, good stability, replace foreign products, reduce many links in the middle, greatly reduce the cost, and reduce the cost by 30%, which is very popular among users.

[0012] It can be seen that the invention mainly uses aluminum as the main raw material, adds manganese Mn, copper Cu, silicon Si, iron Fe and other elements, and applies a reasonable heat treatment process, so that the tensile strength, elongation and specific volume of aluminum foil have reached the same level in foreign countries. The performance of the product index can replace imported products, save a lot of money, and is welcomed by domestic users.

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Abstract

The aluminium foil is composed of following constituents according to their weight percentage: 0.2-2.2% Mn, 0.1-0.65% Cu, 0-0.3% Fe, 0-0.15% Si and the rest Al. The invention solves the issue of the high cost of the aluminium foil, saving the production cost 30%. The product of the aluminium foil provides the features of the large intensity, good resisting breakdown property and without change ofspecific volume.

Description

Technical field: [0001] The invention relates to an electronic aluminum foil for electrolytic capacitors in the field of the electronic industry. Background technique: [0002] Aluminum foil is widely used in the fields of electronics, electric power and military industry. Only the output of electrolytic capacitors in our country is about 35 billion pieces per year. It is necessary to etch the electronic aluminum foil on the surface of the capacitor electrodes by electrolytic corrosion or chemical corrosion to form corrosion holes, which are convenient for use. The effective area of ​​aluminum foil increases, so that the electric capacity per unit area increases, so that the aluminum foil needs about 18,500 tons / year. However, due to the difficult production of electronic aluminum foil and the high technical content, it has been basically dependent on imports for a long time, involving many intermediate links, making the price high. In addition, the copper content in aluminum foi...

Claims

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Application Information

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IPC IPC(8): H01G9/045
Inventor 王禹沪高珊
Owner HEILONGJIANG TONGYU MEDICINE PACKAGING CO LTD
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