GB496613A - Improvements in or relating to the production of etched aluminium surfaces - Google Patents
Improvements in or relating to the production of etched aluminium surfacesInfo
- Publication number
- GB496613A GB496613A GB33054/37A GB3305437A GB496613A GB 496613 A GB496613 A GB 496613A GB 33054/37 A GB33054/37 A GB 33054/37A GB 3305437 A GB3305437 A GB 3305437A GB 496613 A GB496613 A GB 496613A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper
- compound
- etching
- temperature
- cobalt
- 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
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
- C23F1/32—Alkaline compositions
- C23F1/36—Alkaline compositions for etching aluminium or alloys thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
496,613. Etching. ALUMINUM COLORS, Inc. Nov. 30, 1937, No. 33054. Convention date, Dec. 1, 1936. [Class 100 (ii)] An aluminium surface containng less than 0'05 per cent copper is etched to produce a reflecting surface free from streaks, by treating in a hot solution of an alkali, preferably sodium hydroxide, in which is dissolved a compound of copper, lead, or cobalt. The etching is continued for from 5-10 minutes at a temperature of 140 to 170‹ F., or, when a lead compound is used, at a temperature of about 100‹ F., until a dark deposit is formed on the aluminium, the deposit being removed with a solvent such as dilute nitric acid. A substance capable of maintaining the copper or cobalt compound in solution may be added ; ammonium hydroxide, glycerine, cane sugar, or sodium-potassium tartrate may be used for this purpose.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US496613XA | 1936-12-01 | 1936-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB496613A true GB496613A (en) | 1938-12-02 |
Family
ID=21961004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33054/37A Expired GB496613A (en) | 1936-12-01 | 1937-11-30 | Improvements in or relating to the production of etched aluminium surfaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB496613A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2939772A (en) * | 1955-07-18 | 1960-06-07 | Turco Products Inc | Process for etching aluminum and aluminum alloy surfaces |
| CN112553629A (en) * | 2020-06-30 | 2021-03-26 | 中车青岛四方机车车辆股份有限公司 | Grain boundary corrosive agent and grain size display method of 6-series aluminum alloy |
-
1937
- 1937-11-30 GB GB33054/37A patent/GB496613A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2939772A (en) * | 1955-07-18 | 1960-06-07 | Turco Products Inc | Process for etching aluminum and aluminum alloy surfaces |
| CN112553629A (en) * | 2020-06-30 | 2021-03-26 | 中车青岛四方机车车辆股份有限公司 | Grain boundary corrosive agent and grain size display method of 6-series aluminum alloy |
| CN112553629B (en) * | 2020-06-30 | 2023-03-14 | 中车青岛四方机车车辆股份有限公司 | Grain boundary corrosive agent and grain size display method of 6-series aluminum alloy |
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