CN107974701A - A kind of pre-treating method of anode aluminium foil chemical conversion - Google Patents
A kind of pre-treating method of anode aluminium foil chemical conversion Download PDFInfo
- Publication number
- CN107974701A CN107974701A CN201711129017.7A CN201711129017A CN107974701A CN 107974701 A CN107974701 A CN 107974701A CN 201711129017 A CN201711129017 A CN 201711129017A CN 107974701 A CN107974701 A CN 107974701A
- Authority
- CN
- China
- Prior art keywords
- aluminium foil
- oxidation
- chemical conversion
- temperature
- aqua
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/10—Oxidising
- C23C8/16—Oxidising using oxygen-containing compounds, e.g. water, carbon dioxide
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
- C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied
Abstract
The present invention discloses a kind of pre-treating method of anode aluminium foil chemical conversion, includes the following steps：The aluminium foil after excessive erosion is first put into high temperature pure water progress aqua oxidation processing, then the aluminium foil after aqua oxidation is handled is placed in progress vapor oxidation surface treatment in high temperature either pure steam.The temperature of the high temperature either pure steam is 110 DEG C~150 DEG C, and the time of the vapor oxidation surface treatment is 0.5~10min.The present invention after aqua oxidation is handled by adding vapor oxidation surface treatment step, after aqua oxidation processing oxide thickness can be further improved on the basis of generation aqua oxidation film, the increase of bayerite content is limited at the same time, power consumption is significantly reduced so as to reach, production cost is saved, while suitably improves the purpose of aluminium foil specific volume.Relative to traditional chemical conversion pre-treating technology, chemical conversion anodic oxidation power consumption can relative reduction 2~12%, Waste Acid From Hua Cheng Foil specific volume is opposite to improve 0.7~3.2%.
Description
Technical field
The present invention relates to anode foil for aluminum electrolytic capacitor forming technology field, before especially a kind of anode aluminium foil chemical conversion
Processing method.
Background technology
Miniaturization is the inexorable trend of aluminium electrolutic capacitor development, by being carried out to the high-purity aluminum foil with { 100 } texture
Electrolytic etching is that aluminium electrolutic capacitor minimizes most effective technological approaches to expand its specific surface area, improve specific capacitance.
At present, the chemical synthesis technology of mesohigh aluminium foil generally comprises aqua oxidation pre-treatment（It is commonly called as boiling pre-treatment）, one section
Chemical conversion, two sections of chemical conversions, three sections of chemical conversions, four sections of chemical conversions, heat treatment, latter end chemical conversion.Divide according to technology category, chemical synthesis technology also may be used
To be simply divided into two steps：The first step is aqua oxidation pre-treatment, and second step is anodized.This two step is all in fact
Oxide-film is generated in aluminium foil surface, the former is chemical composition coating, or to be electrochemically transformed film.Both generate in aluminium foil surface and tie
Brilliant complex oxide film.By first to aluminium foil carry out aqua oxidation processing, surface formed one layer of aqua oxidation film, then again into
Row anodic oxidation, a part for aqua oxidation film occur to be dehydrated and crystallize under the action of electric field, the amorphous aluminium that anode is formed
Also crystallized under high electric field effect, eventually form crystallization complex oxide film, its performance is formed relative to simple anodic oxidation
Amorphous oxide film greatly improve, aluminium foil specific volume significantly improves, simultaneously because a part of oxide-film is formed by aqua oxidation
, therefore power consumption needed for anodic oxidation is significantly reduced, it can about save 20%~60% electric energy.Due to aqua oxidation film compared with
Thickness, will easily corrode hole plug, therefore this chemical synthesis technology is only applicable to mesohigh anode aluminium foil.
The aqua oxidation of aluminium foil and pure water reaction is handled, with the extension in reaction time, oxide thickness is stepped up,
But reaction speed gradually reduces, thickness limit is finally reached.Therefore, certain scope is reached when the boiling time, thickness is substantially not
It is further added by, power consumption also no longer reduces.In addition, the oxide-film of the pure water of aluminium foil and high temperature reaction generation is by boehmite in fact
With the composite membrane of bayerite composition, its crystal water content scope is 2.2~2.7.With the extension in reaction time, crystal water content
Gradually rise.It promotes the growth of bayerite substantially with the extension of boiling time.And the oxidation that phase structure is bayerite
Film is more, then the dielectric constant of oxide-film is then lower, so as to directly influence the specific volume performance of anode foils.Therefore, aluminium foil pure water
The reaction time of boiling must be controlled in its more preferable effect of suitable scope competence exertion.Since aluminium foil and pure water are hydrated
The rule trend of oxidation, is extremely difficult to further reduce anodic oxidation power consumption and properly increases specific volume by aqua oxidation merely
Purpose.How on the basis of hydration film thickness is improved, while the content for not increasing or even reducing bayerite again is to reduce
Power consumption and the key point for improving anode aluminium foil performance.
The content of the invention
Present invention aim to address above-mentioned technical problem, there is provided one kind, which can significantly reduce power consumption, can simultaneously improve aluminium at the same time
The pre-treating method of the anode aluminium foil chemical conversion of paper tinsel specific volume.
To realize above-mentioned purpose, the technical scheme is that：
A kind of pre-treating method of anode aluminium foil chemical conversion, includes the following steps：It is pure that the aluminium foil after excessive erosion is first put into high temperature
Carry out aqua oxidation processing in water, then the aluminium foil after aqua oxidation is handled is placed in high temperature either pure steam and carries out at steam oxidation
Reason.
As further technical solution, the temperature of high temperature either pure steam described above is 110 DEG C~150 DEG C, the steaming
The time of vapour oxidation processes is 0.5~10min.
As further technical solution, the temperature of high temperature pure water described above is 90~100 DEG C, at the aqua oxidation
The time of reason is 5~20min.
As further technical solution, resistivity of the pure water described above at 25 DEG C is more than 2M Ω cm.
Vapor oxidation surface treatment principle is carried out in the present invention using high temperature either pure steam to aluminium foil to be：High temperature either pure steam can
To further improve the reaction rate of aluminium and water, increase oxide thickness, while under hot conditions, promote the life of boehmite
Into suppressing the generation of bayerite.
Using the aluminium foil after pre-treating method of the present invention, subsequently product is can obtain according to conventional anodized.
Anodized standard reference《People's Republic of China (PRC) electronics industry standard SJ/T 11140-2012：Aluminium electrolutic capacitor is used
Electrode foil》Professional standard carry out different voltages section anodized.
Compared with prior art, beneficial effects of the present invention are：
The present invention can generate water by adding vapor oxidation surface treatment step after aqua oxidation is handled after aqua oxidation processing
Oxide thickness is further improved on the basis of conjunction oxide-film, while limits the increase of bayerite content, so as to reach notable drop
Low power consumption, saves production cost, while suitably improves the purpose of aluminium foil specific volume.Relative to traditional chemical conversion pre-treating technology,
Be melted into anodic oxidation power consumption can relative reduction 2~12%, Waste Acid From Hua Cheng Foil specific volume is opposite to improve 0.7~3.2%.
Embodiment
With reference to embodiment, the present invention is described in further detail.
A kind of pre-treating method of anode aluminium foil chemical conversion, includes the following steps：
（1）Aqua oxidation processing：Aluminium foil after excessive erosion is put into temperature for the resistivity at 90~100 DEG C, 25 DEG C to be more than
5~20min is reacted in the pure water of 2M Ω cm；
（2）Vapor oxidation surface treatment：Aluminium foil after aqua oxidation is handled is placed in the either pure steam that temperature is 110 DEG C~150 DEG C
React 0.5~10min.
Anode aluminium foil after above-mentioned pre-treating method, subsequently can be produced according to conventional anodized
Product.Anodized standard reference《People's Republic of China (PRC) electronics industry standard SJ/T 11140-2012：Alminium electrolytic condenser
Device electrode foil》Professional standard carry out different voltages section anodized.
Comparative example 1
Using traditional chemical conversion pre-treating technology.Pre-treatment：Aluminium foil after excessive erosion is put into temperature as 95 DEG C, resistivity is big
The reaction time 10min in the pure water of 2 M Ω cm；Chemical conversion 1：Aluminium foil after pre-treatment is put into temperature as 90 DEG C, contains 100
Anodic oxidation, current density 0.25A/cm are carried out in the pure boric acid solution of g/L2, voltage 530V, reaction time 20min；
Heat treatment：The aluminium foil being melted into after 1 is put into the stove that temperature is 500 DEG C and carries out heat treatment 2min；Chemical conversion 2：After being heat-treated
Aluminium foil be put into temperature as 90 DEG C, carry out anodic oxidation again in the pure boric acid solution containing 100 g/L, current density is
0.25A/cm2, voltage 530V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 530Vf.
Embodiment 1
Aqua oxidation processing：Aluminium foil after excessive erosion is put into temperature as 95 DEG C, resistivity is more than in the pure water of 2M Ω cm
Reaction time 10min；Vapor oxidation surface treatment：Aluminium foil after aqua oxidation is handled is placed in the either pure steam that temperature is 110 DEG C
React 2min；Chemical conversion 1：Aluminium foil after vapor oxidation surface treatment is put into temperature as 90 DEG C, in the pure boric acid solution containing 100g/L
Carry out anodic oxidation, current density 0.25A/cm2, voltage 530V, reaction time 20min；Heat treatment：After 1 being melted into
Aluminium foil to be put into temperature be to carry out heat treatment 2min in 500 DEG C of stove；Chemical conversion 2：Aluminium foil after heat treatment is put into temperature is
90 DEG C, anodic oxidation, current density 0.25A/cm are carried out again in the pure boric acid solution containing 100g/L2, voltage is
530V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 530Vf.
Embodiment 2
Aqua oxidation processing：Aluminium foil after excessive erosion is put into temperature as 95 DEG C, resistivity is more than in the pure water of 2 M Ω cm
Reaction time 10min；Vapor oxidation surface treatment：Aluminium foil after aqua oxidation is handled is placed in the either pure steam that temperature is 130 DEG C
React 2min；Chemical conversion 1：Aluminium foil after vapor oxidation surface treatment is put into temperature as 90 DEG C, in the pure boric acid solution containing 100g/L
Carry out anodic oxidation, current density 0.25A/cm2, voltage 530V, reaction time 20min；Heat treatment：After 1 being melted into
Aluminium foil to be put into temperature be to carry out heat treatment 2min in 500 DEG C of stove；Chemical conversion 2：Aluminium foil after heat treatment is put into temperature is
90 DEG C, anodic oxidation, current density 0.25A/cm are carried out again in the pure boric acid solution containing 100g/L2, voltage is
530V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 530Vf.
Embodiment 3
Aqua oxidation processing：Aluminium foil after excessive erosion is put into temperature as 95 DEG C, resistivity is the pure water more than 2 M Ω cm
Middle reaction time 10min；Vapor oxidation surface treatment：Aluminium foil after aqua oxidation is handled is placed in the either pure steam that temperature is 150 DEG C
Middle reaction 2min；Chemical conversion 1：Aluminium foil after vapor oxidation surface treatment is put into temperature as 90 DEG C, the pure boric acid solution containing 100g/L
Middle carry out anodic oxidation, current density 0.25A/cm2, voltage 530V, reaction time 20min；Heat treatment：1 will be melted into
Aluminium foil afterwards is put into the stove that temperature is 500 DEG C and carries out heat treatment 2min；Chemical conversion 2：Aluminium foil after heat treatment is put into temperature
For 90 DEG C, anodic oxidation, current density 0.25A/cm are carried out in the pure boric acid solution containing 100g/L again2, voltage is
530V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 530Vf.
Embodiment 4
Aqua oxidation processing：Aluminium foil after excessive erosion is put into temperature as 95 DEG C, resistivity is the pure water more than 2 M Ω cm
Middle reaction time 10min；Vapor oxidation surface treatment：Aluminium foil after aqua oxidation is handled is placed in the either pure steam that temperature is 130 DEG C
Middle reaction 0.5min；Chemical conversion 1：Aluminium foil after vapor oxidation surface treatment is put into temperature as 90 DEG C, the pure boric acid containing 100g/L is molten
Anodic oxidation, current density 0.25A/cm are carried out in liquid2, voltage 530V, reaction time 20min；Heat treatment：Will chemical conversion
Aluminium foil after 1 is put into the stove that temperature is 500 DEG C and carries out heat treatment 2min；Chemical conversion 2：Aluminium foil after heat treatment is put into temperature
For 90 DEG C, anodic oxidation, current density 0.25A/cm are carried out in the pure boric acid solution containing 100g/L again2, voltage is
530V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 530Vf.
Embodiment 5
Aqua oxidation processing：Aluminium foil after excessive erosion is put into temperature as 95 DEG C, resistivity is the pure water more than 2 M Ω cm
Middle reaction time 10min；Vapor oxidation surface treatment：Aluminium foil after aqua oxidation is handled is placed in the either pure steam that temperature is 130 DEG C
Middle reaction 5min；Chemical conversion 1：Aluminium foil after vapor oxidation surface treatment is put into temperature as 90 DEG C, the pure boric acid solution containing 100g/L
Middle carry out anodic oxidation, current density 0.25A/cm2, voltage 530V, reaction time 20min；Heat treatment：1 will be melted into
Aluminium foil afterwards is put into the stove that temperature is 500 DEG C and carries out heat treatment 2min；Chemical conversion 2：Aluminium foil after heat treatment is put into temperature
For 90 DEG C, anodic oxidation, current density 0.25A/cm are carried out in the pure boric acid solution containing 100g/L again2, voltage is
530V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 530Vf.
Comparative example 2
Using traditional chemical conversion pre-treating technology.Pre-treatment：It is 95 DEG C that aluminium foil after excessive erosion is put into temperature, and resistivity is
Reaction time 10min in pure water more than 2 M Ω cm；Chemical conversion 1：Aluminium foil after pre-treatment is put into temperature as 90 DEG C, is contained
Anodic oxidation, current density 0.25A/cm are carried out in the pure boric acid solution of 100g/L2, voltage 600V, the reaction time is
20min；Heat treatment：The aluminium foil being melted into after 1 is put into the stove that temperature is 500 DEG C and carries out heat treatment 2min；Chemical conversion 2：By heat
Aluminium foil after processing is put into temperature as 90 DEG C, carries out anodic oxidation again in the pure boric acid solution containing 100g/L, electric current is close
Spend for 0.25A/cm2, voltage 600V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 600Vf.
Embodiment 6
Aqua oxidation processing：Aluminium foil after excessive erosion is put into temperature as 95 DEG C, resistivity is the pure water more than 2 M Ω cm
Middle reaction time 10min；Vapor oxidation surface treatment：Aluminium foil after aqua oxidation is handled is placed in the either pure steam that temperature is 130 DEG C
Middle reaction 2min；Chemical conversion 1：Aluminium foil after vapor oxidation surface treatment is put into temperature as 90 DEG C, the pure boric acid solution containing 100g/L
Middle carry out anodic oxidation, current density 0.25A/cm2, voltage 600V, reaction time 20min；Heat treatment：1 will be melted into
Aluminium foil afterwards is put into the stove that temperature is 500 DEG C and carries out heat treatment 2min；Chemical conversion 2：Aluminium foil after heat treatment is put into temperature
For 90 DEG C, anodic oxidation, current density 0.25A/cm are carried out in the pure boric acid solution containing 100g/L again2, voltage is
600V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 600Vf.
Embodiment 7
Aqua oxidation processing：Aluminium foil after excessive erosion is put into temperature as 100 DEG C, resistivity is pure more than 2 M Ω cm
Reaction time 5min in water；Vapor oxidation surface treatment：Aluminium foil after aqua oxidation is handled is placed in the either pure steam that temperature is 130 DEG C
Middle reaction 10min；Chemical conversion 1：Aluminium foil after vapor oxidation surface treatment is put into temperature as 90 DEG C, the pure boric acid solution containing 100g/L
Middle carry out anodic oxidation, current density 0.25A/cm2, voltage 600V, reaction time 20min；Heat treatment：1 will be melted into
Aluminium foil afterwards is put into the stove that temperature is 500 DEG C and carries out heat treatment 2min；Chemical conversion 2：Aluminium foil after heat treatment is put into temperature
For 90 DEG C, anodic oxidation, current density 0.25A/cm are carried out in the pure boric acid solution containing 100g/L again2, voltage is
600V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 600Vf.
Embodiment 8
Aqua oxidation processing：Aluminium foil after excessive erosion is put into temperature as 90 DEG C, resistivity is the pure water more than 2 M Ω cm
Middle reaction time 20min；Vapor oxidation surface treatment：Aluminium foil after aqua oxidation is handled is placed in the either pure steam that temperature is 130 DEG C
Middle reaction 10min；Chemical conversion 1：Aluminium foil after vapor oxidation surface treatment is put into temperature as 90 DEG C, the pure boric acid solution containing 100g/L
Middle carry out anodic oxidation, current density 0.25A/cm2, voltage 600V, reaction time 20min；Heat treatment：1 will be melted into
Aluminium foil afterwards is put into the stove that temperature is 500 DEG C and carries out heat treatment 2min；Chemical conversion 2：Aluminium foil after heat treatment is put into temperature
For 90 DEG C, anodic oxidation, current density 0.25A/cm are carried out in the pure boric acid solution containing 100g/L again2, voltage is
600V, reaction time 5min；Finally it is cleaned and dried to obtain the anode aluminium foil of 600Vf.
1 comparative example of table and the embodiment of the present invention obtain the specific volume and power consumption of aluminium foil
It can be seen that from the data of table 1：
（1）The 530Vf anode aluminium obtained using pre-treating method of the present invention can be seen that by comparative example 1 and embodiment 1-5
Paper tinsel, its specific volume improve 0.7~3.2%, and power consumption reduces 2~12%.
（2）By comparative example 2 and embodiment 6 as can be seen that the 600Vf anode aluminium obtained using pre-treating method of the present invention
Paper tinsel, its specific volume improve 2.6%, and power consumption reduces 12%.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution described in foregoing embodiments, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from the essence of various embodiments of the present invention technical solution
God and scope.
Claims (4)
1. a kind of pre-treating method of anode aluminium foil chemical conversion, it is characterised in that include the following steps：First by the aluminium after excessive erosion
Paper tinsel is put into high temperature pure water progress aqua oxidation processing, then the aluminium foil after aqua oxidation is handled be placed in high temperature either pure steam into
Row vapor oxidation surface treatment.
A kind of 2. pre-treating method of anode aluminium foil chemical conversion according to claim 1, it is characterised in that：The high temperature pure water
The temperature of steam is 110 DEG C~150 DEG C, and the time of the vapor oxidation surface treatment is 0.5~10min.
A kind of 3. pre-treating method of anode aluminium foil chemical conversion according to claim 1, it is characterised in that：The high temperature pure water
Temperature be 90 DEG C~100 DEG C, the time of aqua oxidation processing is 5~20min.
A kind of 4. pre-treating method of anode aluminium foil chemical conversion according to claim 1 or 3, it is characterised in that：The pure water
Resistivity at 25 DEG C is more than 2M Ω cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129017.7A CN107974701A (en) | 2017-11-15 | 2017-11-15 | A kind of pre-treating method of anode aluminium foil chemical conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129017.7A CN107974701A (en) | 2017-11-15 | 2017-11-15 | A kind of pre-treating method of anode aluminium foil chemical conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107974701A true CN107974701A (en) | 2018-05-01 |
Family
ID=62013467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711129017.7A Pending CN107974701A (en) | 2017-11-15 | 2017-11-15 | A kind of pre-treating method of anode aluminium foil chemical conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107974701A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055571A (en) * | 2019-04-18 | 2019-07-26 | 宜都东阳光化成箔有限公司 | A kind of preprocessing solution and chemical synthesis technology improving aluminium electrolutic capacitor medium-high pressure chemical foil capacity |
| CN110718392A (en) * | 2019-10-23 | 2020-01-21 | 富之庆电子（深圳）有限公司 | Large voltage drop and large ripple current resistant capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0750228A (en) * | 1993-08-04 | 1995-02-21 | Nichicon Corp | Manufacture of electrolytic capacitor |
| JPH08293442A (en) * | 1995-04-24 | 1996-11-05 | Matsushita Electric Ind Co Ltd | Manufacture of electrode foil for aluminum electrolytic capacitor |
| CN101707141A (en) * | 2009-11-09 | 2010-05-12 | 广西贺州市桂东电子科技有限责任公司 | Method for manufacturing anodic foil of aluminum electrolytic capacitor |
| CN102893350A (en) * | 2010-03-31 | 2013-01-23 | 日本贵弥功株式会社 | Solid electrolytic capacitor |
| CN103177878A (en) * | 2011-12-26 | 2013-06-26 | 广西贺州市桂东电子科技有限责任公司 | Method for forming extra high voltage anode foil |
-
2017
- 2017-11-15 CN CN201711129017.7A patent/CN107974701A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0750228A (en) * | 1993-08-04 | 1995-02-21 | Nichicon Corp | Manufacture of electrolytic capacitor |
| JPH08293442A (en) * | 1995-04-24 | 1996-11-05 | Matsushita Electric Ind Co Ltd | Manufacture of electrode foil for aluminum electrolytic capacitor |
| CN101707141A (en) * | 2009-11-09 | 2010-05-12 | 广西贺州市桂东电子科技有限责任公司 | Method for manufacturing anodic foil of aluminum electrolytic capacitor |
| CN102893350A (en) * | 2010-03-31 | 2013-01-23 | 日本贵弥功株式会社 | Solid electrolytic capacitor |
| CN103177878A (en) * | 2011-12-26 | 2013-06-26 | 广西贺州市桂东电子科技有限责任公司 | Method for forming extra high voltage anode foil |
Non-Patent Citations (1)
| Title |
|---|
| 陈国光: "《电解电容器（第1版）》", 31 October 1986, 西安交通大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055571A (en) * | 2019-04-18 | 2019-07-26 | 宜都东阳光化成箔有限公司 | A kind of preprocessing solution and chemical synthesis technology improving aluminium electrolutic capacitor medium-high pressure chemical foil capacity |
| CN110718392A (en) * | 2019-10-23 | 2020-01-21 | 富之庆电子（深圳）有限公司 | Large voltage drop and large ripple current resistant capacitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106653373B (en) | A kind of aluminium electrolutic capacitor Waste Acid From Hua Cheng Foil and its production technology | |
| CN105883781B (en) | A kind of preparation method of large area redox graphene film | |
| Fan et al. | Hydrothermal solid-gas route to TiO2 nanoparticles/nanotube arrays for high-performance supercapacitors | |
| WO2009152003A3 (en) | Mesoporous electrically conductive metal oxide catalyst supports | |
| CN1766168A (en) | Titanium oxide/aluminum oxide high dielectric constant composite anode film preparation method | |
| CN107974701A (en) | A kind of pre-treating method of anode aluminium foil chemical conversion | |
| CN105420803A (en) | Method for ultrasonic-assisted corrosion of middle-high voltage anode aluminum foil | |
| CN108172402A (en) | The preparation method of aluminium electrolutic capacitor high voltage anodization film | |
| US2174841A (en) | Electrolytic device | |
| CN101425389A (en) | Aluminum electrolysis capacitor anode foil manufacturing method | |
| US4252575A (en) | Producing hydrous oxide of controlled thickness on aluminum capacitor foil | |
| CN102888642B (en) | The preparation method of large area highly ordered porous anodic alumina films | |
| JP2008140904A (en) | Manufacturing method of aluminum electrode foil for electrolytic capacitor | |
| CN204966289U (en) | Ultra -low temperature high pressure aluminium electrolytic capacitor | |
| CN114446667A (en) | Preparation method of high-dielectric-constant electrode foil | |
| CN101359536B (en) | Method of preparing anode foil of capacitor | |
| CN104616898B (en) | A kind of method that additional annealing treatment improves aluminium foil hair engaging aperture performance | |
| CN107785171A (en) | A kind of aluminum electrolytic capacitor electrolyte of boron-doping acid glycerine polyester and preparation method thereof | |
| CN102021627B (en) | Depolarization method in foiling process of electronic aluminum foil | |
| US20080158784A1 (en) | Electrode for electrolytic capacitor | |
| JP2010174266A (en) | Method for manufacturing cathode foil for electrolytic capacitor and cathode foil for electrolytic capacitor | |
| CN109628990A (en) | A kind of Waste Acid From Hua Cheng Foil gives electric slot tank liquor | |
| Zhang et al. | Study of the Corrosion Process for the Anode Metal in Manufacture of High Voltage Aluminum Electrolytic Capacitor | |
| JPS6053453B2 (en) | Aluminum chemical conversion method | |
| CN102569053B (en) | Method for forming high-dielectric constant metal grid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180501 |