CN201765958U - Metalized membrane with low sheet resistance - Google Patents
Metalized membrane with low sheet resistance Download PDFInfo
- Publication number
- CN201765958U CN201765958U CN2010202779811U CN201020277981U CN201765958U CN 201765958 U CN201765958 U CN 201765958U CN 2010202779811 U CN2010202779811 U CN 2010202779811U CN 201020277981 U CN201020277981 U CN 201020277981U CN 201765958 U CN201765958 U CN 201765958U
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- Prior art keywords
- allumen
- layer
- aluminum
- zinc
- film
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model discloses a metalized membrane with low sheet resistance. A layer of aluminum is evaporated on medium through a coating machine at first, then a layer of allumen is evaporated on the aluminum layer, wherein zinc takes 30% of the allumen by weight while aluminum takes 70% of the allumen by weight, the thickness of the allumen is 6-8 times larger than that of the evaporated aluminum layer, and the width of the allumen ranges from 1mm to 5mm. The allumen is evaporated on the aluminum layer by the aid of the characteristic that aluminum is easy to be oxidized in air, thereby realizing the purpose of increasing oxidation resistance of the metalized membrane, and simultaneously greatly enhancing pressure resistance and self-healing property of the metalized membrane.
Description
Technical field
The utility model relates to a kind of metalized film, particularly the low square resistance metalized film.
Background technology
Existing thin film for metalized capacitor, be under high vacuum condition, to adopt the METAL HEATING PROCESS evaporation technique to plate metal with coating machine on the medium, divide the plating of single aluminium coat and zinc-aluminium two-layer, because of it has unique self-healing feature, be widely used in and make all kinds of electric power compensations usefulness or motor starting AC capacitor and DC filter capacitors.The self-healing performance of metallized film may obviously be improved the proof voltage ability and the useful life of metallic film capacitor.Because the fusing point of zinc is lower than aluminium, easilier when thermal breakdown of capacitor, to bring into play, self-healing property is better, so alumin(i)um zinc alloy genusization film has better voltage endurance than the aluminum metallization film.But because zinc coating is puted forth effort extreme difference answering of film surface, therefore necessary first AM aluminum metallization and then evaporation zinc, and zinc very easily oxidation in air, the zinc-aluminium film after the oxidation will cause capacitor to lose efficacy, and therefore the storage environment to the zinc-aluminium metallized film that plates has strict temperature requirement.Simultaneously, in order to guarantee all even densification of aluminium coated in the zinc-aluminium coating, the amount of aluminizing must reach certain amount, and the increase of the amount of aluminizing will reduce the thin self-healing performance of metallization, influences the voltage endurance of film equally, finally influences capacitor quality and useful life.In order to solve this type of problem, the metal current film generally is at the first evaporation last layer of whole film aluminium film, then at a zinc-plated reinforced layer on the evaporation again on the aluminium film, the width of this reinforced layer generally width than film is little a lot, so neither influence the voltage endurance of film, improved the self-healing performance of metallized film again.But the metallized film that adopts such coating does not still solve zinc very easily oxidation in air, the problem that will cause capacitor to lose efficacy of the zinc-aluminium film after the oxidation.
The utility model content
The purpose of this utility model solves zinc very easily oxidation in air in the metallized film exactly, the problem that will cause capacitor to lose efficacy of the zinc-aluminium film after the oxidation.
The technical solution adopted in the utility model is: the low square resistance metalized film, form at the aluminium lamination of voltolisation propylene matter laminar surface by polypropylene media layer and evaporation, evaporation last layer allumen on aluminium lamination then, the material of described zinc-aluminium reinforced layer is an allumen, wherein to account for alloy proportion be 30% to zinc, the proportion that aluminium accounts for alloy is 70%, this zinc-aluminium thickness be institute's evaporation aluminum layer thickness 6-8 doubly, width is 1-5mm, it is characterized in that described allumen is positioned at the centre position of described aluminium lamination, the side resistance in allumen zone is at 3 Ω/below the.
The utility model beneficial effect is: owing to adopt the allumen layer to replace only aluminium lamination and the zinc layer of unit, stoped the aerial oxidation of zinc, thereby stoped the inefficacy of capacitor.The withstand voltage properties and the self-healing performance of metalized film have also been improved simultaneously greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model low square resistance metalized film.
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
Embodiment 1: as depicted in figs. 1 and 2, the utility model is a kind of low square resistance metalized film, is made up of at the aluminium lamination 2 on dielectric layer 1 surface dielectric layer 1 and evaporation, is the fine aluminium film.Dielectric layer 1 is an organic film, and at the allumen layer 3 of the middle evaporation last layer thickening of aluminium lamination 2, wherein to account for the proportion of alloy be 30% to zinc, the proportion that aluminium accounts for alloy is 70%, be positioned at the centre position of aluminium lamination 2, its thickness be aluminium lamination 2 Baidu 6-8 doubly, width is 1-5mm.The resistance of the side of allumen 3 is controlled at 3 Ω/below the, and the side in other zone hinders and is controlled at 6 Ω/below the.
Claims (1)
1. low square resistance metalized film, form at the aluminium lamination [2] on polypropylene media layer [1] surface by polypropylene media layer [1] and evaporation, go up evaporation last layer allumen layer [3] at aluminium lamination [2] then, the material of described allumen layer [3] is an allumen, wherein to account for alloy proportion be 30% to zinc, the proportion that aluminium accounts for alloy is 70%, the 6-8 of the aluminum layer thickness that this allumen layer [3] thickness is institute's evaporation doubly, width is 1-5mm, it is characterized in that described allumen layer [3] is positioned at the centre position of described aluminium lamination [2], side's resistance in allumen layer [3] zone is at 3 Ω/below the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202779811U CN201765958U (en) | 2010-07-20 | 2010-07-20 | Metalized membrane with low sheet resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202779811U CN201765958U (en) | 2010-07-20 | 2010-07-20 | Metalized membrane with low sheet resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201765958U true CN201765958U (en) | 2011-03-16 |
Family
ID=43718568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202779811U Expired - Fee Related CN201765958U (en) | 2010-07-20 | 2010-07-20 | Metalized membrane with low sheet resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201765958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077821A (en) * | 2013-01-09 | 2013-05-01 | 铜陵市东市电子有限责任公司 | Ultralow-sheet-resistance metal aluminum film |
| CN109461581A (en) * | 2018-11-05 | 2019-03-12 | 铜陵市超越电子有限公司 | The anti-anti- harmonic wave metallized film that shoves of one kind |
-
2010
- 2010-07-20 CN CN2010202779811U patent/CN201765958U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077821A (en) * | 2013-01-09 | 2013-05-01 | 铜陵市东市电子有限责任公司 | Ultralow-sheet-resistance metal aluminum film |
| CN109461581A (en) * | 2018-11-05 | 2019-03-12 | 铜陵市超越电子有限公司 | The anti-anti- harmonic wave metallized film that shoves of one kind |
| CN109461581B (en) * | 2018-11-05 | 2020-10-27 | 铜陵市超越电子有限公司 | Anti-surge anti-harmonic metallized film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20120720 |