GB1132808A - Electroplating process - Google Patents
Electroplating processInfo
- Publication number
- GB1132808A GB1132808A GB8513/67A GB851367A GB1132808A GB 1132808 A GB1132808 A GB 1132808A GB 8513/67 A GB8513/67 A GB 8513/67A GB 851367 A GB851367 A GB 851367A GB 1132808 A GB1132808 A GB 1132808A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- layer
- metal
- electrodepositing
- coatings
- 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
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/46—Pretreatment of metallic surfaces to be electroplated of actinides
-
- 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
-
- 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
- C25D5/48—After-treatment of electroplated surfaces
-
- 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
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
- C25D5/611—Smooth layers
-
- 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 Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
1,132,808. Electro-plating. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb.22, 1967 [March 17, 1966], No.8513/67. Heading C7B. Samples of which at least the surface is electrically conductive are provided with an impervious composite coating by a method comprising electrodepositing thereon a first coating comprising at least one metal layer; heating said coating to a temperature and for a time sufficient to degas it; mechanically treating the sample to close the surface defects of the first coating; and electrodepositing thereon a second coating comprising at least one metal layer, at least one of said coatings being constituted by successive depositions of two layers of different metals. The heat-treatment step is preferably carried out under vacuum, e.g. at a pressure of less than 10<SP>-4</SP> mm Hg, and the mechanical treatment of the sample may comprise cold working, e.g. compression rolling or polishing. Following the mechanical treatment remaining defects in the coating may be filled with metal e. g. with indium, tin or zinc, e. g. by electrolytic spot deposition. The first and second coatings may each comprise successive layers of two different metals, the outer layer of the first coating and the inner layer of the second coating being formed of the same metal. The article thus formed may comprise a uranium base, the first coating comprising a layer of nickel followed by a layer of copper and the second coating comprising a layer of copper followed by a layer of nickel. The process may be used to coat fuel rods and other uranium parts produced for mechanical purposes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR53941A FR1479389A (en) | 1966-03-17 | 1966-03-17 | Electrolytic coating process and products conforming to those obtained by application of said process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1132808A true GB1132808A (en) | 1968-11-06 |
Family
ID=8604074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8513/67A Expired GB1132808A (en) | 1966-03-17 | 1967-02-22 | Electroplating process |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE693940A (en) |
| CH (1) | CH471234A (en) |
| FR (1) | FR1479389A (en) |
| GB (1) | GB1132808A (en) |
| IL (1) | IL27492A (en) |
| LU (1) | LU53174A1 (en) |
-
1966
- 1966-03-17 FR FR53941A patent/FR1479389A/en not_active Expired
-
1967
- 1967-02-10 BE BE693940D patent/BE693940A/xx unknown
- 1967-02-22 GB GB8513/67A patent/GB1132808A/en not_active Expired
- 1967-02-26 IL IL27492A patent/IL27492A/en unknown
- 1967-03-06 CH CH322067A patent/CH471234A/en not_active IP Right Cessation
- 1967-03-13 LU LU53174D patent/LU53174A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| LU53174A1 (en) | 1967-05-16 |
| FR1479389A (en) | 1967-05-05 |
| BE693940A (en) | 1967-07-17 |
| CH471234A (en) | 1969-04-15 |
| IL27492A (en) | 1970-08-19 |
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