GB504026A - Improvements in or relating to the polishing of nickel applicable also to the production of decorative or other designs upon the surface - Google Patents
Improvements in or relating to the polishing of nickel applicable also to the production of decorative or other designs upon the surfaceInfo
- Publication number
- GB504026A GB504026A GB2531337A GB2531337A GB504026A GB 504026 A GB504026 A GB 504026A GB 2531337 A GB2531337 A GB 2531337A GB 2531337 A GB2531337 A GB 2531337A GB 504026 A GB504026 A GB 504026A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nickel
- gms
- litre
- treatment
- per litre
- 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
- 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
- C25F3/22—Polishing of heavy metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
504,026. Brightening nickel by electrolytic treatment. PRISTON, H. R., HOTHERSALL, A. W., and HAMMOND, R. A. F. Sept. 17, 1937, No. 25313. [Class 41] A bright surface is produced on a nickel or nickel-plated article by anodic treatment in sulphuric acid of more than 60 per cent concentration, smoothing being effected by selective attack on raised points. Formation of streaks is prevented by agitation of the electrolyte or of the work. It may also be prevented by addition to the electrolyte of one of the following substances which serve to reduce the surface tension or viscosity of the anode film or to reduce the size of the gas bubbles : (i) a sulphonate of the aromatic hydrocarbons such as sodium toluene or sodium benzene monosulphate (e.g. 2-4 gms per litre); (ii) glycerine (e.g. 200 ml per litre) ; (iii) nitric acid (e.g. 40 ml per litre); (iv) chromic acid (sufficient to saturate the solution). The treatment is preferably applied to nickel platings of small grain size deposited from the following baths : (i) nickel sulphate NiSO 4 .7H 2 O 120 gms., ammonium sulphate 21 gms., potassium chloride 8 gms., water to 1 litre ; (ii) nickel sulphate NiSO 4 .7H 2 O 240 gms., nickel chloride NiCl 2 .6H 2 O 4.5 gms., sodium formate 35 gms., water to 1 litre. The surface may be treated locally to produce a design by application of a resist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2531337A GB504026A (en) | 1937-09-17 | 1937-09-17 | Improvements in or relating to the polishing of nickel applicable also to the production of decorative or other designs upon the surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2531337A GB504026A (en) | 1937-09-17 | 1937-09-17 | Improvements in or relating to the polishing of nickel applicable also to the production of decorative or other designs upon the surface |
Publications (1)
Publication Number | Publication Date |
---|---|
GB504026A true GB504026A (en) | 1939-04-17 |
Family
ID=10225683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2531337A Expired GB504026A (en) | 1937-09-17 | 1937-09-17 | Improvements in or relating to the polishing of nickel applicable also to the production of decorative or other designs upon the surface |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB504026A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2440715A (en) * | 1943-07-23 | 1948-05-04 | Battelle Development Corp | Continuous method for electropolishing nickel and nickel-containing alloys |
US2553937A (en) * | 1948-01-17 | 1951-05-22 | Alais & Froges & Camarque Cie | Method of electrolytically polishing aluminum and its alloys |
US2751342A (en) * | 1953-05-12 | 1956-06-19 | Fromson Orban Co Inc | Polishing of aluminum and aluminum base alloys |
US2928777A (en) * | 1950-12-16 | 1960-03-15 | Electro Process Inc | Electrolytic polishing of metals |
CN112730171A (en) * | 2020-12-30 | 2021-04-30 | 成都市海瑞产品质量技术检测有限公司 | Grain size detection method for low-carbon high-alloy material |
-
1937
- 1937-09-17 GB GB2531337A patent/GB504026A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2440715A (en) * | 1943-07-23 | 1948-05-04 | Battelle Development Corp | Continuous method for electropolishing nickel and nickel-containing alloys |
US2553937A (en) * | 1948-01-17 | 1951-05-22 | Alais & Froges & Camarque Cie | Method of electrolytically polishing aluminum and its alloys |
US2928777A (en) * | 1950-12-16 | 1960-03-15 | Electro Process Inc | Electrolytic polishing of metals |
US2751342A (en) * | 1953-05-12 | 1956-06-19 | Fromson Orban Co Inc | Polishing of aluminum and aluminum base alloys |
CN112730171A (en) * | 2020-12-30 | 2021-04-30 | 成都市海瑞产品质量技术检测有限公司 | Grain size detection method for low-carbon high-alloy material |
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