GB985001A - Tinning of aluminium - Google Patents
Tinning of aluminiumInfo
- Publication number
- GB985001A GB985001A GB16527/63A GB1652763A GB985001A GB 985001 A GB985001 A GB 985001A GB 16527/63 A GB16527/63 A GB 16527/63A GB 1652763 A GB1652763 A GB 1652763A GB 985001 A GB985001 A GB 985001A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gms
- litre
- anion
- stannate
- lactone
- 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)
- Cosmetics (AREA)
- Paints Or Removers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Aluminium is tinned by immersion in an aqueous bath containing a stannate salt (being either sodium stannate or potassium stannate), and an anion of a polyhydroxy carboxylic acid. Preferably the anion has less than 8 carbon atoms and may be either (i) a polyhydroxy monocarboxylic acid anion-gluconate, glucoheptonate, glycerate; or (ii) a polyhydroxy polycarboxylic acid anion-saccahrate, tartrate. The anions may be added as the sodium or potassium salts or, alternatively, they may be added as acid, e.g. gluconic, saccharic acids; or as a lactone, e.g. glucono-delta-lactone, or the delta-lactone of glucoheptonic acid. Mixtures of these compounds may be employed. Potassium and/or sodium stannate in amounts from 15 gms./litre to saturation is dissolved in water, e.g. 70 gms./litre, the resulting solution containing about 30 gms./litre of tin. Sufficient KOH and/or NaOH may be initially added to form a bath containing 4 gms./litre (ranges 0-12 gms./litre, usually 2-12 gms./litre) to prevent precipitation of tin due to low pH. During operation the free alkali metal hydroxide is maintained between 0.5 gms./litre and 12.0 gms./litre, preferably 4 gms./litre in range 1-8 gms./litre. Immersion plating is effected at between 20 DEG C. and 90 DEG C.; immersion time is 1-6 minutes, e.g. 4 minutes, and pH value not less than 12.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US190805A US3274021A (en) | 1962-04-27 | 1962-04-27 | Stannate coating bath and method of coating aluminum with tin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB985001A true GB985001A (en) | 1965-03-03 |
Family
ID=22702856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16527/63A Expired GB985001A (en) | 1962-04-27 | 1963-04-26 | Tinning of aluminium |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3274021A (en) |
| DE (1) | DE1521364B2 (en) |
| GB (1) | GB985001A (en) |
| SE (1) | SE313715B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100038A (en) * | 1977-11-08 | 1978-07-11 | M&T Chemicals Inc. | Plating on aluminum alloys |
| US4192722A (en) * | 1978-07-25 | 1980-03-11 | Reynolds Metals Company | Composition and method for stannate plating of large aluminum parts |
| NL184695C (en) * | 1978-12-04 | 1989-10-02 | Philips Nv | BATH FOR THE STREAMLESS DEPOSIT OF TIN ON SUBSTRATES. |
| US5562950A (en) * | 1994-03-24 | 1996-10-08 | Novamax Technologies, Inc. | Tin coating composition and method |
| US5601695A (en) * | 1995-06-07 | 1997-02-11 | Atotech U.S.A., Inc. | Etchant for aluminum alloys |
| JPH11181593A (en) * | 1997-12-16 | 1999-07-06 | Totoku Electric Co Ltd | Method for producing copper-coated aluminum wire |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US694658A (en) * | 1900-12-11 | 1902-03-04 | Jules Meurant | Electrolytic process. |
| US2377606A (en) * | 1940-07-27 | 1945-06-05 | Aluminum Co Of America | Tin-plating of aluminum |
| US2947639A (en) * | 1958-05-19 | 1960-08-02 | Chrysler Corp | Process and composition for immersion tin plating of aluminum and aluminum alloys |
-
1962
- 1962-04-27 US US190805A patent/US3274021A/en not_active Expired - Lifetime
-
1963
- 1963-04-16 DE DE19631521364 patent/DE1521364B2/en active Pending
- 1963-04-26 GB GB16527/63A patent/GB985001A/en not_active Expired
- 1963-04-29 SE SE4704/63A patent/SE313715B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3274021A (en) | 1966-09-20 |
| SE313715B (en) | 1969-08-18 |
| DE1521364A1 (en) | 1969-09-04 |
| DE1521364B2 (en) | 1971-11-18 |
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