CN107130245A - A kind of preparation method of perforated foil - Google Patents
A kind of preparation method of perforated foil Download PDFInfo
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- CN107130245A CN107130245A CN201710170471.0A CN201710170471A CN107130245A CN 107130245 A CN107130245 A CN 107130245A CN 201710170471 A CN201710170471 A CN 201710170471A CN 107130245 A CN107130245 A CN 107130245A
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- preparation
- degreasing
- perforated foil
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- aluminium foil
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/20—Acidic compositions for etching aluminium or alloys thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- ing And Chemical Polishing (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a kind of preparation method of perforated foil, using aluminium foil as raw material, including corrosion process, before corrosion process is carried out, in addition to roll annealing operation, the condition of the calendering annealing operation is：Annealing temperature is 200~600 DEG C, and heat treatment time is 10min~24 hour.The preparation method of the perforated foil of the present invention has the characteristics of machining accuracy is high, product reliability is good, process capability is strong and with low cost.
Description
Technical field
The present invention relates to electronics paper tinsel technical field, specially a kind of preparation method of perforated foil.
Background technology
The perforated foil of electron level is mainly used in the afflux of super capacitor, lithium ion battery, electrokinetic cell, Ni-MH battery
Body, can be used with optical reflecting layer and using aluminium foil, copper foil as substrate coating.
Perforated foil is broadly divided into food packaging and electronics and used, and food packaging perforated foil system is with 1235 ... etc..Double zero aluminium
Paper tinsel is completed using punch pattern mostly as rapidoprint.Because its intensity is relatively poor, purity is relatively low, and for aperture and
Away from requiring relatively low, it is impossible to supply battery, electric capacity coating and use.
Electronics perforated foil as super capacitor, lithium ion battery and electrokinetic cell collector when, be graphite mix in advance lithium and
The key of electroactive material filling, the duct that perforated foil is provided makes lithium source (lithium metal or lithium-containing compound) short in external circuit
In the case of road, rapidly and uniformly to negative pole doped lithium ion (the high-capacity lithium-ion electricity of stacking or winding positive pole and negative pole
Container).The electric current that electroactive material generation can be carried collects to form larger current versus output, and offer is covered
Power and reduction afflux body weight, increase the power and energy of unit intensity.Therefore porosity and distribution density, hole shape size, is yes
The no key used suitable for cell coating.Between the optimal 0.5~100um of size in perforated foil aperture
Existing perforated foil processing mode has：Punching processing, etching process and the etching of template die assisted electrochemical.
Presently relevant exploitation and production company-Mitsui metal, foliation Co., Ltd., metal industry Co., Ltd., east
Yang Lv Co., Ltd..
Etching process is divided into photoetch (using light shield), electrolytic etching and laser-induced thermal etching.
The method that photoetch makes perforated foil in the high-volume of Japanese Patent Publication in 2011 first, process uses intaglio process
Brush, the mode such as hectographic printing and screen painting is used in one layer of photoresist of metallic film surface even spread, then in the way of light shield
Ultraviolet light forms desired image on photoresist, then to etch shape needed for corrosion, typically the perforated foil of making in this way
Aperture is all in below 100um.
Electrolytic etching processing is come control punch by control electric current waveform, with liquid composition, temperature change and reaction time
The graphics shape of paper tinsel.Perforated foil aperture of the institute using base material prepared by high voltage anode aluminum foil is about 1~100um, is then also needed
Remove the insulating oxide aluminium lamination on surface.
Laser-induced thermal etching can prepare smaller perforated foil, but the contraposition of laser-induced thermal etching requires high, and etch depth has
Limit, easily causes not perforated phenomenon, and relative cost is higher, cry not matters largely produce.
Template die assisted electrochemical deposition processes, its processing mode includes：1. it is that to make template its template can be monodisperse sphere
The bubble hydrogen produced in body, high current density electrodeposition process；2. deposition precursor thing-use chemistry or electrochemistry in template
Predecessor is inserted in space and carry out solidification 3. by mode goes removing template to obtain perforated foil.
Punching handling process is simple, is of relatively low cost, and is the mode for being relatively adapted to largely produce at present.
But, also there is the defect of pigeon in actual production in above preparation method：
Photo-engraving process must first be coated with one layer of photoresist on aluminium foil, and required hole shape is designed in the mode by light shield,
Corroded, then washing away unnecessary photoresist.If need to largely produce.Coating, contraposition light shield need to be first passed through, etching tank is reentered
And last organic solvent cleaning.To avoid the influence of facility environment to each other, three big sections of coating contraposition light of process 1. need to be divided into
Cover 2. aluminium foil corrosions 3. and remove photoresist and drying.Each section harsh with respect to general corrosion to environmental demand.And because of aluminium foil corrosion medicine
Three sections and a continuous production should not be caused board maintenance burden by agent relation.
Electrolytic etching method process need to equally be divided into three roads, be specially：1. anode processing, 2. chemistry or electrochemical corrosion,
3. corona or (electricity) chemical method remove oxide, and last road processing procedure easily causes uneven influence in handling process and subsequently made
With.
Laser-induced thermal etching can prepare smaller perforated foil, but the contraposition of laser-induced thermal etching requires high, and etch depth has
Limit, easily causes not perforated phenomenon, and relative cost is higher, cry not matters largely produce.
Template die assisted electrochemical deposition processes, its template die makes and quantization is one and needs the processing procedure of time management and control, and
Fill the uniformity and go the mode of removing template connect make this processing procedure difficulty increase.
Punching handling process is simple, is of relatively low cost, and is the mode for being relatively adapted to largely produce at present, and its quality critical exists
In mould, generally processing perforation prepare the piercing die limit about in 100um, typically then all fall in more than 300um, xm and, after punching
Aluminium foil flash is had around hole, it is therefore desirable to the process of Burr removal.General punch die needle point is all in more than 300um, hole
Smaller, needle point is thinner, can not meet the intensity of punching, about 100/180 beat/min of general frequency.
The content of the invention
It is an object of the invention to provide a kind of preparation method of perforated foil, with machining accuracy is high, product reliability is good, work
The characteristics of Process capabi l i ty 32 is strong and with low cost.
The present invention can be achieved through the following technical solutions：
The invention discloses a kind of preparation method of perforated foil, using aluminium foil as raw material, including corrosion process, carrying out corrosion process
Before, in addition to annealing operation, the condition of the annealing operation is：Annealing temperature is 200~600 DEG C, and heat treatment time is 10min
~24 hours.
Further, the corrosion process uses corrosive liquid and buffer solution mixed system, and the corrosive liquid is 10% salt
Acid, buffer solution pore size for needed for being regarded aluminum contained compound solution proportion is adjusted.
Further, the concentration of the buffer solution is 0.0001~2mol/L, and the temperature of the buffer solution is 30 ~ 60 DEG C.
Further, degreasing process, the degreasing work are also included between the calendering annealing operation and the corrosion process
Sequence is using 0.01~4wt% akaline liquid as degreasing liquid, and the temperature of the degreasing liquid is 0~100 DEG C, controls the degreasing time to be
10s~1min.
Further, cleaning process is also included after the corrosion process, the cleaning process is with the non-of 0.02 ~ 2mol/L
Characteristic Adsorption acid is as cleaning solution, and the temperature of the cleaning process is 5 ~ 90 DEG C, and cleaning time is 10s~3min.
Further, the aluminium foil is the aluminium foil more than aluminium content of high-purity 98%, the model of the aluminium foil includes 3003,
1050th, 1070,1235,8011,1090,2301 and 1085.
Further, the akaline liquid for degreasing process is sodium hydroxide and/or potassium hydroxide.
Further, the non-Characteristic Adsorption acid for cleaning process is nitric acid.
Further, drying process is also included after the cleaning process, the drying temperature of the drying process is 300
DEG C, baking time is 5 ~ 60s.
Further, between the degreasing process and the corrosion process, between corrosion process and cleaning process, cleaner
Also include clear water washing procedure between sequence and drying process.
A kind of preparation method of perforated foil of the present invention, with following beneficial effect：
Firstth, simple to operate, by using the perforated foil preparation method of the present invention, process simplifies, and process operations are simple, keep away
The troublesome operation of photo-engraving process, electrolytic etching processing and template die assisted electrochemical lodgment is exempted from, with stronger operability；
Secondth, aperture controllability is strong, in the present invention, the annealing temperature that the hole spacing and the uniformity of perforated foil pass through annealing operation
Degree and heat treatment time are controlled, and lowest aperture can reach 3um, and maximum, which can process thickness, can reach 300 μm, aperture
The depth in distribution and aperture is respectively provided with stronger controllability, meets the processing needs of high-precision perforated foil, overcomes punching processing
Technique can not meet the processing request of high-precision small-bore；
3rd, with low cost, preparation method process of the invention is simple, easy to operate, without being operated using such as laser-induced thermal etching
Special Equipment, be easy to large-scale production, effectively reduce the cost of manufacture of perforated foil.
Embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to embodiment and to this
Invention product is described in further detail.
Embodiment 1
The invention discloses a kind of preparation method of perforated foil, using aluminium foil as raw material, comprise the following steps：
A, degreasing process：Using 4wt% akaline liquid as degreasing liquid, the temperature of the degreasing liquid is 50 DEG C, controls the degreasing time
For 10s, the akaline liquid for degreasing process is sodium hydroxide；
B, clear water washing procedure, the aluminium foil rinsed with clear water after degreasing process；
C, calendering annealing operation：Annealing temperature is 600 DEG C, and heat treatment time is 12 hours；
D, corrosion process：Using corrosive liquid and buffer solution mixed system, the corrosive liquid is 10% hydrochloric acid, and the buffer solution is
Aluminum contained compound solution proportion regards required pore size adjustment, and the buffer solution is aluminum contained compound solution, the buffer solution
Concentration is 0.0001~mol/L, and the temperature of the buffer solution is 60 DEG C；
E, clear water washing procedure：The aluminium foil rinsed with clear water after corrosion process；
F, cleaning process：Using 0.02 ~ 2mol/L non-Characteristic Adsorption acid as cleaning solution, the temperature of the cleaning process is 50
DEG C, cleaning time is 10s, and the non-Characteristic Adsorption acid for cleaning process is nitric acid；
G, clear water washing procedure：The aluminium foil rinsed with clear water after cleaning process, removes the moisture of aluminium foil surface；
H, drying process：Drying temperature is 300 DEG C, and baking time is 10s, you can obtains aluminium foil surface and spreads irregular uniform point
The perforated foil of the circular hole of cloth.
In the present embodiment, the aluminium foil is the aluminium foil more than aluminium content of high-purity 98%, and the model of the aluminium foil includes
3003rd, 1050,1070,1235,8011,1090,2301 and 1085.
Embodiment 2
The invention discloses a kind of preparation method of perforated foil, using aluminium foil as raw material, comprise the following steps：
A, degreasing process：Using 2wt% akaline liquid as degreasing liquid, the temperature of the degreasing liquid is 10 DEG C, controls the degreasing time
For 1min, the akaline liquid for degreasing process is potassium hydroxide；
B, clear water washing procedure, the aluminium foil rinsed with clear water after degreasing process；
C, calendering annealing operation：Annealing temperature is 400 DEG C, and heat treatment time is 10min；
D, corrosion process：Using corrosive liquid and buffer solution mixed system, the corrosive liquid is 10% hydrochloric acid, and the buffer solution is
Aluminum contained compound solution proportion regards required pore size adjustment, and the buffer solution is aluminum contained compound solution, the buffer solution
Concentration is 2mol/L, and the temperature of the buffer solution is 30 ~ 60 DEG C；
E, clear water washing procedure：The aluminium foil rinsed with clear water after corrosion process；
F, cleaning process：Using 1mol/L non-Characteristic Adsorption acid as cleaning solution, the temperature of the cleaning process is 5 DEG C, cleaning
Time is 3min, and the non-Characteristic Adsorption acid for cleaning process is nitric acid；
G, clear water washing procedure：The aluminium foil rinsed with clear water after cleaning process, removes the moisture of aluminium foil surface；
H, drying process：Drying temperature is 300 DEG C, and baking time is 10s, you can obtains aluminium foil surface and spreads irregular uniform point
The perforated foil of the circular hole of cloth.
In the present embodiment, the aluminium foil is the aluminium foil more than aluminium content of high-purity 98%, and the model of the aluminium foil includes
3003rd, 1050,1070,1235,8011,1090,2301 and 1085.
Embodiment 3
The invention discloses a kind of preparation method of perforated foil, using aluminium foil as raw material, comprise the following steps：
A, degreasing process：Using 0.01wt% akaline liquid as degreasing liquid, the temperature of the degreasing liquid is 100 DEG C, controls degreasing
Time is 30s, and the akaline liquid for degreasing process is sodium hydroxide and potassium hydroxide；
B, clear water washing procedure, the aluminium foil rinsed with clear water after degreasing process；
C, calendering annealing operation：Annealing temperature is 200 DEG C, and heat treatment time is 24 hours；
D, corrosion process：Using corrosive liquid and buffer solution mixed system, the corrosive liquid is 10% hydrochloric acid, and the buffer solution is
Aluminum contained compound solution proportion regards required pore size adjustment, and the buffer solution is aluminum contained compound solution, the buffer solution
Concentration is 1mol/L, and the temperature of the buffer solution is 30 DEG C；
E, clear water washing procedure：The aluminium foil rinsed with clear water after corrosion process；
F, cleaning process：Using 0.02 ~ 2mol/L non-Characteristic Adsorption acid as cleaning solution, the temperature of the cleaning process is 90
DEG C, cleaning time is 1.5min, and the non-Characteristic Adsorption acid for cleaning process is nitric acid；
G, clear water washing procedure：The aluminium foil rinsed with clear water after cleaning process, removes the moisture of aluminium foil surface；
H, drying process：Drying temperature is 300 DEG C, and baking time is 10s, you can obtains aluminium foil surface and spreads irregular uniform point
The perforated foil of the circular hole of cloth.
In the present embodiment, the aluminium foil is the aluminium foil more than aluminium content of high-purity 98%, and the model of the aluminium foil includes
3003rd, 1050,1070,1235,8011,1090,2301 and 1085.
Embodiment 4
The invention discloses a kind of preparation method of perforated foil, using aluminium foil as raw material, comprise the following steps：
A, degreasing process：Using 1wt% akaline liquid as degreasing liquid, the temperature of the degreasing liquid is 80 DEG C, controls the degreasing time
For 20s, the akaline liquid for degreasing process is sodium hydroxide and potassium hydroxide；
B, clear water washing procedure, the aluminium foil rinsed with clear water after degreasing process；
C, calendering annealing operation：Annealing temperature is 300 DEG C, and heat treatment time is 18 hours；
D, corrosion process：Using corrosive liquid and buffer solution mixed system, the corrosive liquid is 10% hydrochloric acid, and the buffer solution is
Aluminum contained compound solution proportion regards required pore size adjustment, and the buffer solution is aluminum contained compound solution, the buffer solution
Concentration is 0.1mol/L, and the temperature of the buffer solution is 50 DEG C；
E, clear water washing procedure：The aluminium foil rinsed with clear water after corrosion process；
F, cleaning process：Using 0.5mol/L non-Characteristic Adsorption acid as cleaning solution, the temperature of the cleaning process is 25 DEG C, clearly
The clean time is 2min, and the non-Characteristic Adsorption acid for cleaning process is nitric acid；
G, clear water washing procedure：The aluminium foil rinsed with clear water after cleaning process, removes the moisture of aluminium foil surface；
H, drying process：Drying temperature is 300 DEG C, and baking time is 10s, you can obtains aluminium foil surface and spreads irregular uniform point
The perforated foil of the circular hole of cloth.
In the present embodiment, the aluminium foil is the aluminium foil more than aluminium content of high-purity 98%, and the model of the aluminium foil includes
3003rd, 1050,1070,1235,8011,1090,2301 and 1085.
Embodiment 5
The invention discloses a kind of preparation method of perforated foil, using aluminium foil as raw material, comprise the following steps：
A, degreasing process：Using 3wt% akaline liquid as degreasing liquid, the temperature of the degreasing liquid is 30 DEG C, controls the degreasing time
For 40s, the akaline liquid for degreasing process is sodium hydroxide or potassium hydroxide；
B, clear water washing procedure, the aluminium foil rinsed with clear water after degreasing process；
C, calendering annealing operation：Annealing temperature is 200~600 DEG C, and heat treatment time is 2 hours；
D, corrosion process：Using corrosive liquid and buffer solution mixed system, the corrosive liquid is 10% hydrochloric acid, and the buffer solution is
Aluminum contained compound solution proportion regards required pore size adjustment, and the buffer solution is aluminum contained compound solution, the buffer solution
Concentration is 0.8mol/L, and the temperature of the buffer solution is 40 DEG C；
E, clear water washing procedure：The aluminium foil rinsed with clear water after corrosion process；
F, cleaning process：Using 0.02 ~ 2mol/L non-Characteristic Adsorption acid as cleaning solution, the temperature of the cleaning process is 60
DEG C, cleaning time is 1min, and the non-Characteristic Adsorption acid for cleaning process is nitric acid；
G, clear water washing procedure：The aluminium foil rinsed with clear water after cleaning process, removes the moisture of aluminium foil surface；
H, drying process：Drying temperature is 300 DEG C, and baking time is 10s, you can obtains aluminium foil surface and spreads irregular uniform point
The perforated foil of the circular hole of cloth.
In the present embodiment, the aluminium foil is the aluminium foil more than aluminium content of high-purity 98%, and the model of the aluminium foil includes
3003rd, 1050,1070,1235,8011,1090,2301 and 1085.In order to further assess the technique effect of the present invention, respectively
Performance test is carried out to the perforated foil of the gained of embodiment 1~5, concrete outcome is as shown in table 1：
The performance test results of table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Minimum-value aperture | 5um | 10um | 14.5um | 30um | 50um |
The foregoing is only a preferred embodiment of the present invention, not makees any formal limitation to the present invention；All one's own professions
The those of ordinary skill of industry can be shown in by specification and described above and swimmingly implement the present invention；But, it is all that to be familiar with sheet special
Without departing from the scope of the present invention, that is made using disclosed above technology contents is a little by the technical staff of industry
Perhaps the equivalent variations of variation, modification and evolution, are the equivalent embodiment of the present invention；Meanwhile, all substantive skills according to the present invention
Variation, modification and evolution of any equivalent variations that art is made to above example etc., still fall within technical scheme
Protection domain within.
Claims (10)
1. a kind of preparation method of perforated foil, using aluminium foil as raw material, it is characterised in that：Including corrosion process, corrosion work is being carried out
Before sequence, in addition to annealing operation, the condition of the annealing operation is：Annealing temperature is 200~600 DEG C, and heat treatment time is
10min~24 hour.
2. the preparation method of perforated foil according to claim 1, it is characterised in that：The corrosion process using corrosive liquid and
Buffer solution mixed system, the corrosive liquid is 10% hydrochloric acid, buffer solution aperture for needed for being regarded aluminum contained compound solution proportion
Size is adjusted.
3. the preparation method of perforated foil according to claim 2, it is characterised in that：The concentration of the buffer solution is 0.0001
~2mol/L, the temperature of the buffer solution is 30 ~ 60 DEG C.
4. the preparation method of perforated foil according to claim 3, it is characterised in that：The annealing operation and the corrosion process
Between also include degreasing process, the degreasing process using 0.01~4wt% akaline liquid as degreasing liquid, the degreasing liquid
Temperature is 0~100 DEG C, and it is 10s~1min to control the degreasing time.
5. the preparation method of perforated foil according to claim 4, it is characterised in that：Also include cleaning after the corrosion process
Process, the cleaning process using 0.02 ~ 2mol/L non-Characteristic Adsorption acid as cleaning solution, the temperature of the cleaning process for 5 ~
90 DEG C, cleaning time is 10s~3min.
6. the preparation method of perforated foil according to claim 4, it is characterised in that：The aluminium foil is the aluminium content of high-purity 98%
Aluminium foil above, the model of the aluminium foil includes 3003,1050,1070,1235,8011,1090,2301 and 1085.
7. the preparation method of perforated foil according to claim 5 or 6, it is characterised in that：Akaline liquid for degreasing process
For sodium hydroxide and/or potassium hydroxide.
8. the preparation method of perforated foil according to claim 7 or 6, it is characterised in that：Non- characteristic for cleaning process is inhaled
Attached acid is nitric acid.
9. the preparation method of perforated foil according to claim 8, it is characterised in that：Also include drying after the cleaning process
Process, the drying temperature of the drying process is 200 ~ 450 DEG C, and baking time is 5 ~ 60s.
10. the preparation method of perforated foil according to claim 9, it is characterised in that：The degreasing process and the corrosion work
Also include clear water washing procedure between sequence, between corrosion process and cleaning process, between cleaning process and drying process.
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| CN201710170471.0A CN107130245A (en) | 2017-03-21 | 2017-03-21 | A kind of preparation method of perforated foil |
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| CN201710170471.0A CN107130245A (en) | 2017-03-21 | 2017-03-21 | A kind of preparation method of perforated foil |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101034A (en) * | 1984-07-16 | 1987-01-10 | 菲利浦(北美)有限公司 | The two-step electrochemical of high voltage aluminium anode foil and chemical method for etching |
| CN1484260A (en) * | 2003-07-09 | 2004-03-24 | 深圳市东阳光化成箔股份有限公司 | Method for mfg negative electrode foil of aluminium electrolytic capacitor |
| CN101030485A (en) * | 2006-12-22 | 2007-09-05 | 东莞市东阳光电容器有限公司 | Low-voltage anode foil pretreatment |
| US20130264196A1 (en) * | 2008-01-11 | 2013-10-10 | Pacesetter Inc. | Electrochemical drilling system and process for improving electrical porosity of etched anode foil |
| CN105401209A (en) * | 2015-12-09 | 2016-03-16 | 广西贺州市桂东电子科技有限责任公司 | Corrosion pretreatment method for middle-high voltage anode aluminum foil |
-
2017
- 2017-03-21 CN CN201710170471.0A patent/CN107130245A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101034A (en) * | 1984-07-16 | 1987-01-10 | 菲利浦(北美)有限公司 | The two-step electrochemical of high voltage aluminium anode foil and chemical method for etching |
| CN1484260A (en) * | 2003-07-09 | 2004-03-24 | 深圳市东阳光化成箔股份有限公司 | Method for mfg negative electrode foil of aluminium electrolytic capacitor |
| CN101030485A (en) * | 2006-12-22 | 2007-09-05 | 东莞市东阳光电容器有限公司 | Low-voltage anode foil pretreatment |
| US20130264196A1 (en) * | 2008-01-11 | 2013-10-10 | Pacesetter Inc. | Electrochemical drilling system and process for improving electrical porosity of etched anode foil |
| CN105401209A (en) * | 2015-12-09 | 2016-03-16 | 广西贺州市桂东电子科技有限责任公司 | Corrosion pretreatment method for middle-high voltage anode aluminum foil |
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