Formation method of anodic aluminum foil

A chemical formation method and anode aluminum foil technology, which can be used in capacitors, circuits, electrolytic capacitors, etc., can solve the problems of wasting heat and water, and achieve the effects of reducing production costs, saving heat and water, and achieving good cleaning effects.

Inactive Publication Date: 2011-01-19
南通华冠电子科技有限公司
1 Cites 3 Cited by

AI-Extracted Technical Summary

Problems solved by technology

Among them, the chemical formation method includes pretreatment -> multi-level voltage empowerment to form an oxide film on the surface of aluminum foil -> repeated damage to repair the oxide film, wherein the multi-level voltage empowerment and repeated damage repair are carried out between different weakly acidic baths Each time the aluminum foil enters different weakly acidic baths, it needs to be washed to remove boric...
View more

Abstract

The invention discloses a formation method of anodic aluminum foil, which comprises the following steps: preprocessing; energizing by multi-stage voltage to form an oxide film on the surface of the aluminum foil; and repeatedly damaging and repairing the oxide film. The processes of energizing by multi-stage voltage and repeatedly damaging and repairing are carried out in weakly acidic tank liquor of different concentration; and before and after the aluminum foil enters different weakly acidic tank liquor every time, the aluminum foil needs to be washed by water to clear the acid liquor residues on the surface of the aluminum foil, wherein in the water washing method, pure water is firstly used for cooling the front section, and the pure water is directly used for cleaning the back section. In the formation method of anodic aluminum foil, which is provided by the invention, the pure water is directly used for cooling the front section, and the heated pure water is directly used for cleaning the back section, thereby ensuring good cleaning effect, saving heat and water and reducing the production cost.

Application Domain

Electrolytic capacitors

Technology Topic

MetallurgyAluminum foil +1

Examples

  • Experimental program(1)

Example Embodiment

[0010] The present invention will be further described below with specific examples.
[0011] The formation method of the anode aluminum foil of the present invention sequentially includes pretreatment, multi-level voltage forming to form an oxide film on the surface of the aluminum foil, and repeated damage and repair of the oxide film. In order to add medium and high voltage aluminum foil from 170V to 200~1000V, generally 3~6 levels of voltage energization are required. Each level of voltage energization is carried out between different concentrations of weakly acidic baths (PH value 4~7). The aluminum foil needs to be washed before and after entering different weak acid baths to remove the acid residue on the surface of the aluminum foil. In addition, repeated damage repairs generally first use an oven to crack the oxide film on the surface of the aluminum foil, and then perform constant voltage oxidation repair in a boric acid solution. The aluminum foil must be washed before entering the oven. The washing method is first cooled with pure water. , And then use the above pure water directly for the subsequent cleaning.
[0012] The method for forming anode aluminum foil provided by the present invention makes full use of the front cooling heat. Generally, after the front cooling, the pure water temperature can reach 40-70°C, and the above pure water is directly used for the rear cleaning, which can completely ensure a good cleaning effect , Thereby saving heat and water, reducing production costs.
[0013] Although the present invention has been disclosed as above in the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be as defined in the claims.

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

Medical apparatus cleaning device

Owner:佛山市翠微自动化科技有限公司

Washing control method for washing machine

InactiveCN104911862Agood cleaning effect
Owner:QINGDAO HAIER WASHING MASCH CO LTD

Classification and recommendation of technical efficacy words

  • good cleaning effect

Bio-enzyme degerming and cleaning effervescent tablet for clothes, and preparation method and application thereof

InactiveCN106753932Agood cleaning effectfast effervescent time
Owner:深圳市美益洁生物科技有限公司

Dust-removal foot pad

Owner:珠海市道森汽车用品有限公司

Push-type wall skin removing device for building construction

Owner:民发现代建设工程集团有限公司

Metallic material surface detergent

Owner:JIANGSU HAIXUN IND GROUP SHARE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products