CN110257893A - A kind of aluminum foil corrosion technique - Google Patents
A kind of aluminum foil corrosion technique Download PDFInfo
- Publication number
- CN110257893A CN110257893A CN201910457797.0A CN201910457797A CN110257893A CN 110257893 A CN110257893 A CN 110257893A CN 201910457797 A CN201910457797 A CN 201910457797A CN 110257893 A CN110257893 A CN 110257893A
- Authority
- CN
- China
- Prior art keywords
- added
- aluminium foil
- temperature
- corrosion
- solution
- 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
- 238000005260 corrosion Methods 0.000 title claims abstract description 49
- 230000007797 corrosion Effects 0.000 title claims abstract description 49
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000011888 foil Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000005030 aluminium foil Substances 0.000 claims abstract description 69
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 235000011149 sulphuric acid Nutrition 0.000 claims abstract description 17
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000012153 distilled water Substances 0.000 claims abstract description 13
- 235000011007 phosphoric acid Nutrition 0.000 claims abstract description 13
- 238000005530 etching Methods 0.000 claims abstract description 12
- 238000011010 flushing procedure Methods 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 239000004094 surface-active agent Substances 0.000 claims abstract description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 18
- 229910017604 nitric acid Inorganic materials 0.000 claims description 18
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 150000001805 chlorine compounds Chemical group 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 7
- 238000002242 deionisation method Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/04—Etching of light metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
- H01G9/045—Electrodes or formation of dielectric layers thereon characterised by the material based on aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/055—Etched foil electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The present invention discloses a kind of aluminum foil corrosion technique, comprising the following steps: Step 1: aluminium foil is handled；Step 2: corrosion treatment；Step 3: corrosion post-treatment.Cathode anode is produced using different process；Anode: 0.05~1wt%HCL solution, 0.05~1wt%H3PO4 solution and 0.05~1wt%H2SO4 solution mixed liquor are prepared, surfactant is added, kept for 50~70 DEG C of temperature, aluminium foil is added and impregnates 80~120s, distilled water flushing is used after taking-up, the aluminium foil for carrying out anode processing is added in the mixed liquor of the AlCl3 preparation of 3.0mol/l HCL, 0.75mol/l H2SO4,0.1mol/l, use ultrasonic wave added, temperature is 40~50 DEG C, being passed through voltage is 220V, the alternating current that current density is 0.3A/cm2, frequency is 50HZ, etching time are 60~100s.Chloride residue of the present invention is fewer, improves aluminium foil quality, further improves the Optimality of product, and corrosion appearance uniformity is good, while improving the area expanding rate and direct capacitance of aluminium foil, keeps life of product long.
Description
Technical field
The present invention relates to a kind of capacitor aluminium foil production field, specifically a kind of aluminum foil corrosion techniques.
Background technique
There is the electrolyte of storage charge in the inside of electrolytic capacitor, and point positive and negative polarity is similar to battery, can not connect
Instead.Just extremely it is being stained with the metal substrate of oxidation film, cathode is connected by metal polar plate and electrolyte (solid and non-solid).Nothing
Polarity (bipolarity) electrolytic capacitor uses dual oxide membrane structure, is similar to two polarized electrolytic capacitors for two cathode phases
It is constituted after connection, two electrode is respectively that two metal polar plates (being stained with oxidation film) are connected, and is electricity among two groups of oxidation films
Xie Zhi.Polarized electrolytic capacitor usually plays power filter, decoupling, signal coupling in power circuit or intermediate frequency, low-frequency channel
And the effects of time constant setting, stopping direct current.Non-polarized electrolytic capacitor is commonly used in audio frequency dividers circuit, the school television set S
The starting circuit of positive circuit and single-phase motor.
With the fast development of global scientific and technological progress and electronics industry, electrolytic capacitor shows high frequency, Low ESR, height
The development trend of performance and long-life, middle Chloride residue is relatively more in view of the prior art, and corrosion appearance uniformity is bad, aluminium
A kind of low problem of the area expanding rate and static capacity of foil, it is proposed that aluminum foil corrosion technique.
Summary of the invention
The purpose of the present invention is to provide a kind of aluminum foil corrosion techniques, and Chloride residue is fewer, corrode appearance uniformity
It is good, improve the area expanding rate and static capacity of aluminium foil.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of aluminum foil corrosion technique, comprising the following steps:
Step 1: aluminium foil processing
Anode
Prepare 0.05~1wt%HCL solution, 0.05~1wt%H3PO4 solution is mixed with 0.05~1wt%H2SO4 solution
Surfactant is added in liquid, is kept for 50~70 DEG C of temperature, and aluminium foil is added and impregnates 80~120s, uses distilled water flushing after taking-up；
Cathode
2wt%NAOH is prepared, maintains the temperature at 45~60 DEG C, aluminium foil is added and impregnates 10~25s, uses distilled water after taking-up
It rinses；
Step 2: corrosion treatment
Anode
3.0mol/l HCL, 0.75mol/l H2SO4,0.1mol/l is added in the aluminium foil for carrying out anode processing by step (1)
The mixed liquor prepared of AlCl3 in, using ultrasonic wave added, temperature is 40~50 DEG C, and being passed through voltage is 220V, and current density is
0.3A/cm2, the alternating current that frequency is 50HZ, etching time are 60~100s；
Step (2), by step (1) corrosion after aluminium foil, in cold situation, again be added 3.0mol/l HCL,
In the mixed liquor of the AlCl3 preparation of 0.75mol/l H2SO4,0.1mol/l, temperature is 45~65 DEG C, handles 120~240s；
Step (3), by step (2), treated that 4.0~4.5mol/l HCL, 0.1~2mol/l is added in aluminium foil again
In the mixed liquor of the AlCl3 preparation of H2SO4,0.1~0.2mol/l, using ultrasonic wave added, etchant solution temperature is 35~45 DEG C,
Being passed through voltage is 220V, and the alternating current that current density 0.3A/cm2, frequency are 50HZ, etching time is 250~350s；
Cathode
Step (1), by the aluminium foil after cathode treatment concentration be 8mol/l HCL and 2mol/l H2SO4 mixed liquor, temperature
At 80~100 DEG C, 20~30s is impregnated；
5mol/l HNO3 is added in step (1) treated aluminium foil by step (2), temperature at 40~50 DEG C, impregnate 20~
30s；
0.2~2mol/l NaCO3 solution is added in step (2) treated aluminium foil by step (3), and aluminium ion Al3+ is added
Under the action of H3PO4 catalyst, 30~40s is impregnated；
Step 3: corrosion post-treatment
Anode
By the anode aluminium foil after corrosion, 20~35 DEG C of temperature, 3% HNO3 solution in impregnate 30s, then use deionization
Water cleans up；
Cathode
By the cathode aluminum foil after corrosion 40~50 DEG C of temperature, 3% HNO3 solution in impregnate 30s, then use deionization
Water cleans up.
Further, the surfactant is 0.1%~2wt%C12H25SO4Na.
Further, the ultrasonic wave added frequency is 35~50KHz.
Beneficial effects of the present invention:
1, Chloride residue of the present invention is fewer, improves aluminium foil quality, further improves the Optimality of product；
2, present invention corrosion appearance uniformity is good, while improving the area expanding rate and direct capacitance of aluminium foil, keeps life of product long.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
A kind of aluminum foil corrosion technique, comprising the following steps:
Step 1: aluminium foil processing
Anode
Prepare 0.05~1wt%HCL solution, 0.05~1wt%H3PO4 solution is mixed with 0.05~1wt%H2SO4 solution
The surfactant of 0.1%~2wt%C12H25SO4Na is added in liquid, is kept for 50~70 DEG C of temperature, and aluminium foil is added and impregnates 80
~120s uses distilled water flushing after taking-up.
Cathode
2wt%NAOH is prepared, maintains the temperature at 45~60 DEG C, aluminium foil is added and impregnates 10~25s, uses distilled water after taking-up
It rinses.
Step 2: corrosion treatment
Anode
3.0mol/l HCL, 0.75mol/l H2SO4,0.1mol/l is added in the aluminium foil for carrying out anode processing by step (1)
AlCl3 prepare mixed liquor in, using supersonic frequency be 35~50KHz ultrasonic wave added, temperature be 40~50 DEG C, be passed through electricity
Pressure is 220V, and the alternating current that current density 0.3A/cm2, frequency are 50HZ, etching time is 60~100s.
Step (2), by step (1) corrosion after aluminium foil, in cold situation, again be added 3.0mol/l HCL,
In the mixed liquor of the AlCl3 preparation of 0.75mol/l H2SO4,0.1mol/l, temperature is 45~65 DEG C, handles 120~240s.
Step (3), by step (2), treated that 4.0~4.5mol/l HCL, 0.1~2mol/l is added in aluminium foil again
In the mixed liquor of the AlCl3 preparation of H2SO4,0.1~0.2mol/l, the ultrasonic wave added for the use of supersonic frequency being 35~50KHz is rotten
Losing solution temperature is 35~45 DEG C, and being passed through voltage is 220V, and the alternating current that current density 0.3A/cm2, frequency are 50HZ is rotten
The erosion time is 250~350s.
Cathode
It (1), is 8mol/l HCL and 2mol/l H2SO4 mixed liquor in concentration by the aluminium foil after cathode treatment, temperature is 80
~100 DEG C, impregnate 20~30s.
5mol/l HNO3 is added in step (1) treated aluminium foil by step (2), temperature at 40~50 DEG C, impregnate 20~
30s。
0.2~2mol/l NaCO3 solution is added in step (2) treated aluminium foil by step (3), and aluminium ion Al3+ is added
Under the action of H3PO4 catalyst, 30~40s is impregnated.
Step 3: corrosion post-treatment
Anode
By the anode aluminium foil after corrosion, 20~35 DEG C of temperature, 3% HNO3 solution in impregnate 30s, then use deionization
Water cleans up.
Cathode
By the cathode aluminum foil after corrosion 40~50 DEG C of temperature, 3% HNO3 solution in impregnate 30s, then use deionization
Water cleans up.
Embodiment 1
A kind of aluminum foil corrosion technique, comprising the following steps:
Step 1: aluminium foil processing
Anode
1wt%HCL solution, 1wt%H3PO4 solution and 1wt%H2SO4 solution mixed liquor are prepared, 2wt% is added
The surfactant of C12H25SO4Na keeps temperature 50 C, and aluminium foil is added and impregnates 80s, uses distilled water flushing after taking-up.
Cathode
2wt%NAOH is prepared, maintains the temperature at 60 DEG C, aluminium foil is added and impregnates 25s, uses distilled water flushing after taking-up.
Step 2: corrosion treatment
Anode
3.0mol/l HCL, 0.75mol/l H2SO4,0.1mol/l is added in the aluminium foil for carrying out anode processing by step (1)
AlCl3 prepare mixed liquor in, using supersonic frequency be 50KHz ultrasonic wave added, temperature be 50 DEG C, being passed through voltage is
220V, the alternating current that current density 0.3A/cm2, frequency are 50HZ, etching time 100s.
Step (2), by step (1) corrosion after aluminium foil, in cold situation, again be added 3.0mol/l HCL,
In the mixed liquor of the AlCl3 preparation of 0.75mol/l H2SO4,0.1mol/l, temperature is 65 DEG C, handles 240s.
Step (3), by step (2) treated aluminium foil is added again 4.5mol/l HCL, 2mol/l H2SO4,
In the mixed liquor that the AlCl3 of 0.2mol/l is prepared, the ultrasonic wave added for the use of supersonic frequency being 50KHz, etchant solution temperature is 45
DEG C, being passed through voltage is 220V, the alternating current that current density 0.3A/cm2, frequency are 50HZ, etching time 250s.
Cathode
Step (1), by the aluminium foil after cathode treatment concentration be 8mol/l HCL and 2mol/l H2SO4 mixed liquor, temperature
At 100 DEG C, 30s is impregnated.
5mol/l HNO3 is added in step (1) treated aluminium foil by step (2), and temperature impregnates 30s at 50 DEG C.
2mol/l NaCO3 solution is added in step (2) treated aluminium foil by step (3), and aluminium ion Al3+ is added and exists
Under the action of H3PO4 catalyst, 40s is impregnated.
Step 3: corrosion post-treatment
Anode
By the anode aluminium foil after corrosion, 35 DEG C of temperature, 3% HNO3 solution in impregnate 30s, it is then clear with deionized water
Wash clean.
Cathode
By the cathode aluminum foil after corrosion temperature 50 C, 3% HNO3 solution in impregnate 30s, it is then clear with deionized water
Wash clean.
Embodiment 2
A kind of aluminum foil corrosion technique, comprising the following steps:
Step 1: aluminium foil processing
Anode
0.5wt%HCL solution, 0.5wt%H3PO4 solution and 0.5wt%H2SO4 solution mixed liquor are prepared, is added
The surfactant of 1.2wt%C12H25SO4Na keeps temperature 60 C, and aluminium foil is added and impregnates 100s, uses distilled water after taking-up
It rinses.
Cathode
2wt%NAOH is prepared, maintains the temperature at 55 DEG C, aluminium foil is added and impregnates 20s, uses distilled water flushing after taking-up.
Step 2: corrosion treatment
Anode
3.0mol/l HCL, 0.75mol/l H2SO4,0.1mol/l is added in the aluminium foil for carrying out anode processing by step (1)
AlCl3 prepare mixed liquor in, using supersonic frequency be 50KHz ultrasonic wave added, temperature be 45 DEG C, being passed through voltage is
220V, the alternating current that current density 0.3A/cm2, frequency are 50HZ, etching time 80s.
Step (2), by step (1) corrosion after aluminium foil, in cold situation, again be added 3.0mol/l HCL,
In the mixed liquor of the AlCl3 preparation of 0.75mol/l H2SO4,0.1mol/l, temperature is 55 DEG C, handles 180s.
Step (3), by step (2) treated aluminium foil is added again 4.2mol/l HCL, 1.2mol/l H2SO4,
In the mixed liquor that the AlCl3 of 0.15mol/l is prepared, the ultrasonic wave added for the use of supersonic frequency being 50KHz, etchant solution temperature is 40
DEG C, being passed through voltage is 220V, the alternating current that current density 0.3A/cm2, frequency are 50HZ, etching time 300s.
Cathode
It (1), is 8mol/l HCL and 2mol/l H2SO4 mixed liquor in concentration by the aluminium foil after cathode treatment, temperature is 90
DEG C, impregnate 25s.
5mol/l HNO3 is added in step (1) treated aluminium foil by step (2), and temperature impregnates 20~30s at 45 DEG C.
1.5mol/l NaCO3 solution is added in step (2) treated aluminium foil by step (3), and aluminium ion Al3+ is added and exists
Under the action of H3PO4 catalyst, 35s is impregnated.
Step 3: corrosion post-treatment
Anode
By the anode aluminium foil after corrosion, 30 DEG C of temperature, 3% HNO3 solution in impregnate 30s, it is then clear with deionized water
Wash clean.
Cathode
By the cathode aluminum foil after corrosion temperature 45 C, 3% HNO3 solution in impregnate 30s, it is then clear with deionized water
Wash clean
Embodiment 3
A kind of aluminum foil corrosion technique, comprising the following steps:
Step 1: aluminium foil processing
Anode
1wt%HCL solution, 1wt%H3PO4 solution and 1wt%H2SO4 solution mixed liquor are prepared, 2wt% is added
The surfactant of C12H25SO4Na keeps temperature 70 C, and aluminium foil is added and impregnates 120s, uses distilled water flushing after taking-up.
Cathode
2wt%NAOH is prepared, maintains the temperature at 60 DEG C, aluminium foil is added and impregnates 25s, uses distilled water flushing after taking-up.
Step 2: corrosion treatment
Anode
3.0mol/l HCL, 0.75mol/l H2SO4,0.1mol/l is added in the aluminium foil for carrying out anode processing by step (1)
AlCl3 prepare mixed liquor in, using supersonic frequency be 50KHz ultrasonic wave added, temperature be 50 DEG C, being passed through voltage is
220V, the alternating current that current density 0.3A/cm2, frequency are 50HZ, etching time 100s.
Step (2), by step (1) corrosion after aluminium foil, in cold situation, again be added 3.0mol/l HCL,
In the mixed liquor of the AlCl3 preparation of 0.75mol/l H2SO4,0.1mol/l, temperature is 65 DEG C, handles 240s.
Step (3), by step (2) treated aluminium foil is added again 4.5mol/l HCL, 2mol/l H2SO4,
In the mixed liquor that the AlCl3 of 0.2mol/l is prepared, the ultrasonic wave added for the use of supersonic frequency being 50KHz, etchant solution temperature is 45
DEG C, being passed through voltage is 220V, the alternating current that current density 0.3A/cm2, frequency are 50HZ, etching time 350s.
Cathode
It (1), is 8mol/l HCL and 2mol/l H2SO4 mixed liquor in concentration by the aluminium foil after cathode treatment, temperature exists
100 DEG C, impregnate 30s.
5mol/l HNO3 is added in step (1) treated aluminium foil by step (2), and temperature impregnates 30s at 50 DEG C.
2mol/l NaCO3 solution is added in step (2) treated aluminium foil by step (3), and aluminium ion Al3+ is added and exists
Under the action of H3PO4 catalyst, 40s is impregnated.
Step 3: corrosion post-treatment
Anode
By the anode aluminium foil after corrosion, 35 DEG C of temperature, 3% HNO3 solution in impregnate 30s, it is then clear with deionized water
Wash clean.
Cathode
By the cathode aluminum foil after corrosion temperature 50 C, 3% HNO3 solution in impregnate 30s, it is then clear with deionized water
Wash clean
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (3)
1. a kind of aluminum foil corrosion technique, which comprises the following steps:
Step 1: aluminium foil processing
Anode
0.05~1wt%HCL solution, 0.05~1wt%H3PO4 solution and 0.05~1wt%H2SO4 solution mixed liquor are prepared,
Surfactant is added, is kept for 50~70 DEG C of temperature, aluminium foil is added and impregnates 80~120s, uses distilled water flushing after taking-up；
Cathode
2wt%NAOH is prepared, maintains the temperature at 45~60 DEG C, aluminium foil is added and impregnates 10~25s, is rushed after taking-up with distilled water
It washes；
Step 2: corrosion treatment
Anode
3.0mol/l HCL, 0.75mol/l H2SO4,0.1mol/l is added in the aluminium foil for carrying out anode processing by step (1)
In the mixed liquor that AlCl3 is prepared, using ultrasonic wave added, temperature is 40~50 DEG C, and being passed through voltage is 220V, and current density is
0.3A/cm2, the alternating current that frequency is 50HZ, etching time are 60~100s；
Step (2), by step (1) corrosion after aluminium foil, in cold situation, again be added 3.0mol/l HCL,
In the mixed liquor of the AlCl3 preparation of 0.75mol/l H2SO4,0.1mol/l, temperature is 45~65 DEG C, handles 120~240s；
Step (3), by step (2) treated aluminium foil is added again 4.0~4.5mol/l HCL, 0.1~2mol/l H2SO4,
In the mixed liquor that the AlCl3 of 0.1~0.2mol/l is prepared, using ultrasonic wave added, etchant solution temperature is 35~45 DEG C, is passed through electricity
Pressure is 220V, and the alternating current that current density 0.3A/cm2, frequency are 50HZ, etching time is 250~350s；
Cathode
(1), be 8mol/l HCL and 2mol/l H2SO4 mixed liquor in concentration by the aluminium foil after cathode treatment, temperature 80~
100 DEG C, impregnate 20~30s；
(2), by (1) treated, 5mol/l HNO3 is added in aluminium foil, and temperature impregnates 20~30s at 40~50 DEG C；
(3) by (2) treated, 0.2~2mol/l NaCO3 solution is added in aluminium foil, and aluminium ion Al3+ is added in H3PO4 catalyst
Under the action of, impregnate 30~40s；
Step 3: corrosion post-treatment
Anode
By the anode aluminium foil after corrosion, 20~35 DEG C of temperature, 3% HNO3 solution in impregnate 30s, it is then clear with deionized water
Wash clean；
Cathode
By the cathode aluminum foil after corrosion 40~50 DEG C of temperature, 3% HNO3 solution in impregnate 30s, it is then clear with deionized water
Wash clean.
2. a kind of aluminum foil corrosion technique according to claim 1, which is characterized in that the surfactant be 0.1%~
2wt%C12H25SO4Na.
3. a kind of aluminum foil corrosion technique according to claim 1, which is characterized in that the ultrasonic wave added frequency be 35~
50KHz。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457797.0A CN110257893A (en) | 2019-05-29 | 2019-05-29 | A kind of aluminum foil corrosion technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457797.0A CN110257893A (en) | 2019-05-29 | 2019-05-29 | A kind of aluminum foil corrosion technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110257893A true CN110257893A (en) | 2019-09-20 |
Family
ID=67915807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910457797.0A Pending CN110257893A (en) | 2019-05-29 | 2019-05-29 | A kind of aluminum foil corrosion technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110257893A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226807A (en) * | 2020-10-12 | 2021-01-15 | 河北师范大学 | Method for producing micropores in commercial aluminum foil |
| CN112981516A (en) * | 2021-02-03 | 2021-06-18 | 广州金立电子有限公司 | Anode aluminum foil corrosion method for aluminum electrolytic capacitor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08264391A (en) * | 1995-03-28 | 1996-10-11 | Nippon Chikudenki Kogyo Kk | Etching of aluminum foil for electrolytic capacitor |
| CN1921042A (en) * | 2005-06-14 | 2007-02-28 | 三菱铝株式会社 | Aluminum foil for the electrolytic capacitor and etching method for forming etching pits |
| CN101425393A (en) * | 2008-07-29 | 2009-05-06 | 东莞市东阳光电容器有限公司 | Cathode foil manufacturing method for aluminum electrolysis capacitor |
| CN103187176A (en) * | 2013-03-22 | 2013-07-03 | 常州大学 | Corrosion technology of anode aluminum foil of electrolysis capacitor |
| CN105336499A (en) * | 2015-08-03 | 2016-02-17 | 肇庆华锋电子铝箔股份有限公司 | Pretreatment method for corrosion of anode aluminium foil of electrolytic capacitor |
| CN107227485A (en) * | 2017-04-18 | 2017-10-03 | 扬州宏远电子有限公司 | A kind of etching process method of hard state optical aluminum foil |
| CN108004547A (en) * | 2017-11-20 | 2018-05-08 | 湖北富奕达电子科技有限公司 | A kind of aluminium electrolytic capacitor cathode aluminium foil corrosion new process |
-
2019
- 2019-05-29 CN CN201910457797.0A patent/CN110257893A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08264391A (en) * | 1995-03-28 | 1996-10-11 | Nippon Chikudenki Kogyo Kk | Etching of aluminum foil for electrolytic capacitor |
| CN1921042A (en) * | 2005-06-14 | 2007-02-28 | 三菱铝株式会社 | Aluminum foil for the electrolytic capacitor and etching method for forming etching pits |
| CN101425393A (en) * | 2008-07-29 | 2009-05-06 | 东莞市东阳光电容器有限公司 | Cathode foil manufacturing method for aluminum electrolysis capacitor |
| CN103187176A (en) * | 2013-03-22 | 2013-07-03 | 常州大学 | Corrosion technology of anode aluminum foil of electrolysis capacitor |
| CN105336499A (en) * | 2015-08-03 | 2016-02-17 | 肇庆华锋电子铝箔股份有限公司 | Pretreatment method for corrosion of anode aluminium foil of electrolytic capacitor |
| CN107227485A (en) * | 2017-04-18 | 2017-10-03 | 扬州宏远电子有限公司 | A kind of etching process method of hard state optical aluminum foil |
| CN108004547A (en) * | 2017-11-20 | 2018-05-08 | 湖北富奕达电子科技有限公司 | A kind of aluminium electrolytic capacitor cathode aluminium foil corrosion new process |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226807A (en) * | 2020-10-12 | 2021-01-15 | 河北师范大学 | Method for producing micropores in commercial aluminum foil |
| CN112226807B (en) * | 2020-10-12 | 2022-03-11 | 河北师范大学 | Method for producing micropores in commercial aluminum foil |
| CN112981516A (en) * | 2021-02-03 | 2021-06-18 | 广州金立电子有限公司 | Anode aluminum foil corrosion method for aluminum electrolytic capacitor |
| CN112981516B (en) * | 2021-02-03 | 2022-04-05 | 广州金立电子有限公司 | Anode aluminum foil corrosion method for aluminum electrolytic capacitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101651046B (en) | Preparation method of Al2O3/TiO2 compound dielectric film aluminum electrode foil | |
| CN106698406A (en) | Process for preparing graphite according to electrochemical method | |
| CN105702465B (en) | A kind of manufacture method of ups power electrode foil | |
| CN109755043A (en) | Self-healing integration gel state supercapacitor and preparation method thereof | |
| CN110257893A (en) | A kind of aluminum foil corrosion technique | |
| Jiang et al. | Superior high-voltage aqueous carbon/carbon supercapacitors operating with in situ electrodeposited polyvinyl alcohol borate gel polymer electrolytes | |
| CN111146017B (en) | High-voltage-resistant graphene/activated carbon electrode material and preparation method and application thereof | |
| CN104480520B (en) | Manufacturing method of producing high-purity cathode foil by virtue of electrochemical corrosion | |
| CN108172402A (en) | The preparation method of aluminium electrolutic capacitor high voltage anodization film | |
| CN100527300C (en) | Method for modifying surface of aluminum electrode foil | |
| CN105568340A (en) | Preparation method for manganese-ion-doped lead dioxide anode material used for super capacitor | |
| CN108893760A (en) | A kind of production method of lithium ion collector corronil foil | |
| TW201945280A (en) | Graphite composite conductive bar material and method for producing graphene using the same | |
| CN114695866B (en) | Preparation method of double transition metal oxide negative electrode material of lithium ion battery | |
| CN108269696A (en) | The preparation method of polypyrrole/cobalt nickel double-hydroxide composite electrode material for super capacitor | |
| CN1805088A (en) | Preparation method of dielectric film of aluminum electrolytic capacitor | |
| CN103320799A (en) | Method for restraining secondary electron yield on silver coating surface of microwave component | |
| CN106024393A (en) | Preparation method for aluminium electrolytic capacitor based on coupling corrosion of positive electrode aluminium foil electrode reaction | |
| CN109817891B (en) | Method for preparing nano structure on surface of titanium material in situ | |
| CN108754594A (en) | A kind of method that mesohigh electric aluminum foil hair engaging aperture corrodes later half V cathodes power-up protection | |
| CN103714974A (en) | Method for preparing aluminum electrolytic capacitor anode material | |
| CN105185605A (en) | Loaded graphene/metallic compound-contained electrode preparation method based on hollow cathode plasma reduction and nitridation | |
| CN108615887A (en) | A kind of preparation method of sodium-ion battery foamy graphite alkene cathode | |
| CN109518188A (en) | A kind of etched foil aftertreatment technology | |
| CN117612868B (en) | Method for manufacturing medium-pressure corrosion foil |
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 |
Application publication date: 20190920 |
|
| RJ01 | Rejection of invention patent application after publication |