GB717985A - Improvements in and relating to nickel-plating - Google Patents
Improvements in and relating to nickel-platingInfo
- Publication number
- GB717985A GB717985A GB14940/52A GB1494052A GB717985A GB 717985 A GB717985 A GB 717985A GB 14940/52 A GB14940/52 A GB 14940/52A GB 1494052 A GB1494052 A GB 1494052A GB 717985 A GB717985 A GB 717985A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- nickel
- plated
- bath
- sulphate
- 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
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/623—Porosity of the layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
717,985. Electrodeposition of nickel. FREINSTEIN, E. June 13, 1952, [Aug. 25, 1951.] No. 4940/52. Class 41. A ground work-piece of iron or non-ferrous metal is first copper-plated or zinc-plated and highly polished, then covered in a short time, preferably 2-3 minutes with a thin deposit of brass, and then nickel plated for a time less than i minute, preferably 25-30 sec. The nickel bath should be of density about 30 BÚ, pH 6.4-6.9, preferably 6.4, temperature above 30 C., preferably 50-60C. and the voltage employed 1.8-2.5, preferably 2.2. The bath contains 40-60, preferably 50, parts by weight nickel sulphate NiSO 4 . 7 H 2 O, 2-4, preferably 2-3 parts sodium sulphate, 2-4, preferably 2-3, parts magnesium sulphate, 0.3-0.6, preferably 0.45 parts sodium chloride, 0.4-0.8, preferably 0.45, parts hydrogen peroxide in 30 per cent solution and 0.2-0.4, preferably 0.3, parts boric acid per 100 parts of water. The articles are moved in the bath, preferably by suspension on a pendulum rod.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE717985X | 1951-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB717985A true GB717985A (en) | 1954-11-03 |
Family
ID=6626825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14940/52A Expired GB717985A (en) | 1951-08-25 | 1952-06-13 | Improvements in and relating to nickel-plating |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1059259A (en) |
| GB (1) | GB717985A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2805192A (en) * | 1954-05-28 | 1957-09-03 | Gen Electric | Plated refractory metals |
| US3249409A (en) * | 1963-01-23 | 1966-05-03 | Du Pont | Chromium plated metal structures |
-
1952
- 1952-06-13 GB GB14940/52A patent/GB717985A/en not_active Expired
- 1952-06-27 FR FR1059259D patent/FR1059259A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2805192A (en) * | 1954-05-28 | 1957-09-03 | Gen Electric | Plated refractory metals |
| US3249409A (en) * | 1963-01-23 | 1966-05-03 | Du Pont | Chromium plated metal structures |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1059259A (en) | 1954-03-23 |
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