GB902785A - Composition and process for immersion tin plating - Google Patents
Composition and process for immersion tin platingInfo
- Publication number
- GB902785A GB902785A GB1398060A GB1398060A GB902785A GB 902785 A GB902785 A GB 902785A GB 1398060 A GB1398060 A GB 1398060A GB 1398060 A GB1398060 A GB 1398060A GB 902785 A GB902785 A GB 902785A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- stannate
- immersion
- aluminium
- alkali metal
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
Abstract
Aluminium and aluminium alloy parts are coated with tin by immersion in an aqueous solution of alkali metal stannate and alkali metal polyphosphate. Suitable stannates are sodium and potassium stannate. Specified polyphosphates are sodium and potassium tripolyphosphate, hexametaphosphate and pyrophosphate. Dry stannate/polyphosphate compositions which are suitable for preparing new tinning solutions or for replenishment purposes are disclosed. In Example 1, a piston made of a cast aluminium-silicon-copper alloy is cleaned, prior to tinning, by immersion in a solution comprising sodium-metasilicate, -tripolyphosphate, -bicarbonate and -lignosulphate, together with a surface-active agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1398060A GB902785A (en) | 1960-04-21 | 1960-04-21 | Composition and process for immersion tin plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1398060A GB902785A (en) | 1960-04-21 | 1960-04-21 | Composition and process for immersion tin plating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB902785A true GB902785A (en) | 1962-08-09 |
Family
ID=10032853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1398060A Expired GB902785A (en) | 1960-04-21 | 1960-04-21 | Composition and process for immersion tin plating |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB902785A (en) |
-
1960
- 1960-04-21 GB GB1398060A patent/GB902785A/en not_active Expired
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