GB902827A - Improvements in or relating to the treatment of aluminium - Google Patents
Improvements in or relating to the treatment of aluminiumInfo
- Publication number
- GB902827A GB902827A GB6015/59A GB601559A GB902827A GB 902827 A GB902827 A GB 902827A GB 6015/59 A GB6015/59 A GB 6015/59A GB 601559 A GB601559 A GB 601559A GB 902827 A GB902827 A GB 902827A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- etched
- solution
- sees
- volts
- 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.)
- Expired
Links
- 229910052782 aluminium Inorganic materials 0.000 title abstract 4
- 239000004411 aluminium Substances 0.000 title abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 239000003792 electrolyte Substances 0.000 abstract 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 239000005030 aluminium foil Substances 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 238000007743 anodising Methods 0.000 abstract 1
- 229910021538 borax Inorganic materials 0.000 abstract 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract 1
- 239000004327 boric acid Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000005530 etching Methods 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002823 nitrates Chemical class 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- 235000010339 sodium tetraborate Nutrition 0.000 abstract 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
902,827. Etching and anodizing aluminium, electrolytically. BRITISH ALUMINIUM CO. Ltd. Feb. 8, 1960 [Feb. 20, 1959], No. 6015/59. Class 41. An aluminium or aluminium alloy surface is etched anodically with an electrolyte using interrupted pulses of unidirectional current of frequency 20 c.p.s. to 6 k.c.p.s., a current density of 3 to 5 A.S. cm., and each pulse of 5 to 100Á sees. duration. The preferred electrolyte contains halides or nitrates of alkali metals, ammonia or magnesium. It is stated that the active surface is increased 10 times for a loss of about 10% of metal. The etched surface may then be washed and formed using boric acid or an alkali borate solution. In examples, aluminium foil after cleaning in caustic soda is etched using a 15% solution of NaCl, MgCl 2 , KNO 3 or NaNO 3 for 2 to 15 mins. at 20‹ to 40‹ C. and at 15 volts, 20 Á sees. duration and a repetition frequency of 66 c.p.s. The foil is then washed and treated with 2% H 3 BO 3 solution containing a little sodium borate at 460 volts.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6015/59A GB902827A (en) | 1959-02-20 | 1959-02-20 | Improvements in or relating to the treatment of aluminium |
| US7995A US3085950A (en) | 1959-02-20 | 1960-02-11 | Electrolytic etching of aluminum foil |
| FR819068A FR1248959A (en) | 1959-02-20 | 1960-02-19 | Improvement in aluminum processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6015/59A GB902827A (en) | 1959-02-20 | 1959-02-20 | Improvements in or relating to the treatment of aluminium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB902827A true GB902827A (en) | 1962-08-09 |
Family
ID=9806889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6015/59A Expired GB902827A (en) | 1959-02-20 | 1959-02-20 | Improvements in or relating to the treatment of aluminium |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3085950A (en) |
| FR (1) | FR1248959A (en) |
| GB (1) | GB902827A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3020012A1 (en) * | 1980-05-24 | 1981-12-03 | Daimler-Benz Ag, 7000 Stuttgart | METHOD FOR EXPOSING THE SILICON CRYSTALS ON THE SURFACE OF A BODY MADE OF AN ALUMINUM ALLOY WITH A HIGH SILICON CONTENT |
| CN119101905A (en) * | 2024-11-11 | 2024-12-10 | 安徽亚明铝业科技有限公司 | Corrosion reaming device and method for corrosion foil |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1564486A1 (en) * | 1951-01-28 | 1970-03-19 | Paehr Dr Hans Werner | Process for enlarging the effective surface of aluminum electrodes or foils for electrolytic capacitors |
| US3193485A (en) * | 1960-09-20 | 1965-07-06 | Plessey Co Ltd | Electrolytic treatment of aluminium for increasing the effective surface |
| BE622454A (en) * | 1961-09-15 | |||
| GB966627A (en) * | 1962-04-09 | 1964-08-12 | British Dielectric Res Ltd | Improvements in or relating to the electrolytic etching of anodisable metal foil |
| US3321389A (en) * | 1964-07-20 | 1967-05-23 | Mallory & Co Inc P R | Method of anodically etching aluminum foils at elevated temperatures in an electrolyte including chloride and sulfate ions |
| NL6705053A (en) * | 1966-04-18 | 1967-10-19 | ||
| NL7000002A (en) * | 1970-01-02 | 1971-07-06 | ||
| GB1498179A (en) * | 1974-08-07 | 1978-01-18 | Kodak Ltd | Electrolytic graining of aluminium |
| DE2537724C3 (en) * | 1975-08-25 | 1981-02-26 | Hoechst Ag, 6000 Frankfurt | Use of a process for the electrochemical roughening of aluminum in the production of planographic printing plate carriers |
| FR2381595A1 (en) * | 1977-02-24 | 1978-09-22 | Centre Techn Ind Mecanique | ELECTROCHEMICAL MACHINING PROCESS |
| NL8006998A (en) * | 1980-12-23 | 1982-07-16 | Philips Nv | ALUMINUM FOIL FOR ELECTROLYTIC CONDENSERS. |
| JPS57126126A (en) * | 1981-01-29 | 1982-08-05 | Yoshiyuki Okamoto | Method of etching aluminum foil for electrolytic condenser |
| US4343686A (en) * | 1981-02-27 | 1982-08-10 | Sprague Electric Company | Method for controlling etching of electrolytic capacitor foil |
| US4336113A (en) * | 1981-06-26 | 1982-06-22 | American Hoechst Corporation | Electrolytic graining of aluminum with hydrogen peroxide and nitric or hydrochloric acid |
| US4381231A (en) * | 1981-11-16 | 1983-04-26 | Sprague Electric Company | DC Etching of aluminum electrolytic capacitor foil |
| DE3217552A1 (en) * | 1982-05-10 | 1983-11-10 | Hoechst Ag, 6230 Frankfurt | METHOD FOR ELECTROCHEMICALLY Roughening ALUMINUM FOR PRINTING PLATE CARRIERS |
| FR2539147A1 (en) * | 1983-01-06 | 1984-07-13 | Suzuoka Electric Appliances | Process for electrochemical etching of an aluminium sheet intended for the manufacture of electrolytic capacitors |
| JPS6079707A (en) * | 1983-10-06 | 1985-05-07 | 松下電器産業株式会社 | Aluminum electrolytic condenser |
| JPH0616469B2 (en) | 1984-12-28 | 1994-03-02 | 松下電器産業株式会社 | Etching method for electrode foil for aluminum electrolytic capacitors |
| DE3503927A1 (en) * | 1985-02-06 | 1986-08-07 | Hoechst Ag, 6230 Frankfurt | METHOD FOR ELECTROCHEMICALLY Roughening ALUMINUM FOR PRINTING PLATE CARRIERS |
| US4588486A (en) * | 1985-04-19 | 1986-05-13 | Sprague Electric Company | Etching of aluminum capacitor foil |
| EP0224444B1 (en) * | 1985-11-25 | 1990-05-09 | Alusuisse-Lonza Services Ag | Process for manufacturing a partially permeable membrane |
| CN114525576B (en) * | 2022-01-04 | 2023-10-27 | 湖南大学 | A corrosion processing method for 7XXX series aluminum alloy components |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2930741A (en) * | 1960-03-29 | Electrolytic capacitors | ||
| US2755237A (en) * | 1951-07-25 | 1956-07-17 | Sprague Electric Co | Electrolytically etched condenser electrode |
| US2755238A (en) * | 1955-03-25 | 1956-07-17 | Sprague Electric Co | Electrolytic etching and oxidizing of aluminum |
-
1959
- 1959-02-20 GB GB6015/59A patent/GB902827A/en not_active Expired
-
1960
- 1960-02-11 US US7995A patent/US3085950A/en not_active Expired - Lifetime
- 1960-02-19 FR FR819068A patent/FR1248959A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3020012A1 (en) * | 1980-05-24 | 1981-12-03 | Daimler-Benz Ag, 7000 Stuttgart | METHOD FOR EXPOSING THE SILICON CRYSTALS ON THE SURFACE OF A BODY MADE OF AN ALUMINUM ALLOY WITH A HIGH SILICON CONTENT |
| CN119101905A (en) * | 2024-11-11 | 2024-12-10 | 安徽亚明铝业科技有限公司 | Corrosion reaming device and method for corrosion foil |
Also Published As
| Publication number | Publication date |
|---|---|
| US3085950A (en) | 1963-04-16 |
| FR1248959A (en) | 1960-12-23 |
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