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Aluminum edge thickened single-side single-margin aluminum metalized thin film and preparation method thereof

A technology of aluminum metallization and edge thickening, applied in the field of capacitors, can solve problems such as poor contact and easy oxidation of aluminum metallized films, and achieve the effects of reducing thickness, prolonging service life and increasing contact area.

Inactive Publication Date: 2020-02-07
ZHEJIANG QIXING CAPACITOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the deficiencies in the prior art, the first object of the present invention is to provide a single-sided single-edge aluminum metallized film with thickened aluminum edges, which solves the problem of poor contact of the existing aluminum metallized film and the current There is a problem that the inside of the thickened film of aluminum-zinc metallization is easy to oxidize

Method used

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  • Aluminum edge thickened single-side single-margin aluminum metalized thin film and preparation method thereof
  • Aluminum edge thickened single-side single-margin aluminum metalized thin film and preparation method thereof
  • Aluminum edge thickened single-side single-margin aluminum metalized thin film and preparation method thereof

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Embodiment 1

[0038] Embodiment 1: refer to figure 1 , which is a single-sided single-edge aluminum metallized film with thickened aluminum edges disclosed in the present invention, including an insulating base film 1 . The upper surface of the insulating base film 1 is provided with an aluminum metallization layer 3 and a margin 2 side by side along the width direction, and the width of the aluminum metallization layer 3 and the margin 2 is equal to the width of the insulating base film 1 . In addition, the surface of the aluminum metallization layer 3 is evenly plated with an aluminum thickening layer 4 , and the aluminum thickening layer 4 is arranged on the edge of the upper surface of the aluminum metallization layer 3 away from the edge 2 .

[0039] By adding one deck of aluminum thickening layer 4 on the aluminum metallization layer 3, the contact area between the metallization film and the gold-sprayed surface is directly improved, thereby avoiding the problem of poor contact; A ch...

Embodiment 2

[0042] Embodiment 2: refer to figure 2 , the difference from Embodiment 1 is that the thickened aluminum layer 4 is arranged on the edge of the upper surface of the aluminum metallization layer 3 near the edge 2 .

Embodiment 3

[0043] Embodiment 3: refer to image 3 , the difference from Embodiment 1 is that the aluminum thickened layer 4 is arranged in the middle of the upper surface of the aluminum metallization layer 3 .

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Abstract

The invention relates to an aluminum edge thickened single-side single-margin aluminum metalized thin film and a preparation method thereof. The aluminum edge thickened single-side single-margin aluminum metalized thin film includes an insulating base film; an aluminum metalized layer and a margin are disposed side by side on a surface of the insulating base film along a width direction; and an aluminum thickened layer is plated on a surface of the aluminum metalized layer uniformly. The preparation method of the aluminum edge thickened single-side single-margin aluminum metalized thin film isas follows: vacuum evaporation and cooling of the insulating base film, first aging treatment, cutting of a thin film semi-finished product, and second aging treatment. According to the aluminum edgethickened single-side single-margin aluminum metalized thin film and the preparation method thereof provided by the invention, by adopting the aluminum thickened layer and the aluminum metalized layer made of an aluminum material, oxidation of metal aluminum inside is prevented; with the aluminum thickened layer, a contact area is increased, to guarantee an electrical performance parameter; and in addition, for the preparation method provided by the invention, through synchronous evaporation and cooling of the insulating base film and with the use of a two-step method for the evaporation andthe cutting, the operation is simple and quick to obtain the aluminum edge thickened single-side single-margin aluminum metalized thin film at last.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a single-sided single-edge aluminum metallized film with thickened aluminum edges and a preparation method thereof. Background technique [0002] With the rapid development of the electronics industry, capacitors, as a widely used electronic component, are in great demand. In recent years, the system and weight of capacitors have been reduced by 3-4 times. At the same time, the coating technology and segmentation technology of metallized films have been improved, which has greatly helped the development of film capacitors. In film capacitors, the metallized film is the core component of the capacitor as the core winding material, and the production of better metallized films is the basis for making capacitors with good performance. Therefore, it is necessary to improve the production process of the metallized film to improve the quality of the metallized film. [0003] The C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/005H01G4/008H01G4/18H01G4/33
CPCH01G4/005H01G4/008H01G4/18H01G4/33
Inventor 韩秋城古骏古玮
Owner ZHEJIANG QIXING CAPACITOR
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