GB436154A - Improvements in or relating to the production of bright aluminium surfaces - Google Patents
Improvements in or relating to the production of bright aluminium surfacesInfo
- Publication number
- GB436154A GB436154A GB10341/34A GB1034134A GB436154A GB 436154 A GB436154 A GB 436154A GB 10341/34 A GB10341/34 A GB 10341/34A GB 1034134 A GB1034134 A GB 1034134A GB 436154 A GB436154 A GB 436154A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- aluminium
- sulphuric acid
- acid
- per
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 3
- 239000004411 aluminium Substances 0.000 title abstract 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 3
- 235000011149 sulphuric acid Nutrition 0.000 abstract 3
- 239000001117 sulphuric acid Substances 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 238000002310 reflectometry Methods 0.000 abstract 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 239000004922 lacquer Substances 0.000 abstract 1
- 235000006408 oxalic acid Nutrition 0.000 abstract 1
- 238000004381 surface treatment Methods 0.000 abstract 1
- 239000002966 varnish Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
- C25F3/16—Polishing
- C25F3/18—Polishing of light metals
- C25F3/20—Polishing of light metals of aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- ing And Chemical Polishing (AREA)
Abstract
436,154. Electrolytic surface treatment of aluminium and its alloys. ALUMINUM CO. OF AMFRICA, Gulf Building, Pittsburg, U.S.A.-(Assignees of Mason, R. B., and Tosterud, M.) April 5, 1934, No. 10341. Convention date, Feb. 10. [Class 41] A bright surface of high reflectivity is produced on aluminium or an aluminium alloy by anodic treatment in a solution containing 1-60 per cent by weight of sulphuric acid together with hydrofluoric acid. Preferable proportions are 5-35 per cent sulphuric acid and 0À2-1À5 per cent hydrofluoric acid. A temperature of 30-70 C., and current density 10-100 amps. per sq. ft. are suitable. Direct or alternating current may be employed. The treated surface may be coated with clear lacquer or varnish and alternatively it may be subjected to further anodic treatment in a sulphuric acid or oxalic acid bath to produce a clear, transparent oxide coating which does not appreciably impair the reflectivity. This coating may be rendered impermeable by treating with water 80-100 C., as described in Specification 406,988.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US710723A US2040618A (en) | 1934-02-10 | 1934-02-10 | Method of producing bright surfaces on aluminum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB436154A true GB436154A (en) | 1935-10-07 |
Family
ID=24855243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10341/34A Expired GB436154A (en) | 1934-02-10 | 1934-04-05 | Improvements in or relating to the production of bright aluminium surfaces |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2040618A (en) |
| BE (1) | BE407434A (en) |
| DE (1) | DE646736C (en) |
| FR (1) | FR778018A (en) |
| GB (1) | GB436154A (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2424674A (en) * | 1940-04-29 | 1947-07-29 | American Rolling Mill Co | Electrolytic bright polishing |
| US2442592A (en) * | 1942-09-30 | 1948-06-01 | American Rolling Mill Co | Electrolytic polishing of stainless steel |
| US2442591A (en) * | 1942-09-30 | 1948-06-01 | American Rolling Mill Co | Electrolytic polishing of stainless steel |
| US2565189A (en) * | 1949-03-15 | 1951-08-21 | Du Pont | Electropolishing steel |
| US2868705A (en) * | 1955-01-19 | 1959-01-13 | John J Baier | Art of electrolytically treating metal to clean, level, smooth, polish and/or protect the surfaces thereof |
| DE1009884B (en) * | 1955-07-08 | 1957-06-06 | Vaw Ver Aluminium Werke Ag | Process for the pretreatment of workpieces made of aluminum or aluminum alloys for the production of high-gloss, anodically oxidized surfaces |
| US3222266A (en) * | 1958-08-20 | 1965-12-07 | Kaiser Aluminium Chem Corp | Method of enameling anodized aluminum |
| US3075894A (en) * | 1959-01-23 | 1963-01-29 | Westinghouse Electric Corp | Method of electroplating on aluminum surfaces |
| US2997429A (en) * | 1959-02-26 | 1961-08-22 | Westinghouse Electric Corp | Electropolishing of titanium and titanium alloys |
| US3505179A (en) * | 1966-05-25 | 1970-04-07 | Oberdorfer Foundries Inc | Method of producing permanent colored aluminum castings |
| US3787298A (en) * | 1971-08-09 | 1974-01-22 | Ethyl Corp | Anodizing aluminum foams |
| USRE32661E (en) * | 1974-02-14 | 1988-05-03 | Amchem Products, Inc. | Cleaning aluminum at low temperatures |
| USRE31198E (en) * | 1974-02-14 | 1983-04-05 | Amchem Products, Inc. | Method for cleaning aluminum at low temperatures |
| NL7504244A (en) * | 1975-04-09 | 1976-10-12 | Fokker Vfw | STAINING OF ALUMINUM. |
| US4293617A (en) * | 1979-12-26 | 1981-10-06 | Gould Inc. | Process for producing strippable copper on an aluminum carrier and the article so obtained |
| CA1218422A (en) * | 1984-02-15 | 1987-02-24 | Gino L. Leone | Metal pretreatment for resistance spot welding of aluminum |
| DE3917186A1 (en) * | 1989-05-26 | 1990-11-29 | Happich Gmbh Gebr | CHEMICAL METHOD FOR AVOIDING A RAINBOW EFFECT Caused By The Oxide Layer Formed In The Shining Of Parts Of Aluminum Or Aluminum Alloys |
-
0
- BE BE407434D patent/BE407434A/xx unknown
-
1934
- 1934-02-10 US US710723A patent/US2040618A/en not_active Expired - Lifetime
- 1934-04-05 GB GB10341/34A patent/GB436154A/en not_active Expired
- 1934-05-25 FR FR778018D patent/FR778018A/en not_active Expired
-
1935
- 1935-01-29 DE DEA75162D patent/DE646736C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE407434A (en) | |
| FR778018A (en) | 1935-03-07 |
| DE646736C (en) | 1937-06-21 |
| US2040618A (en) | 1936-05-12 |
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