GB1464048A - Processes for the manufacture of aluminium articles coated with metals - Google Patents
Processes for the manufacture of aluminium articles coated with metalsInfo
- Publication number
- GB1464048A GB1464048A GB5115774A GB5115774A GB1464048A GB 1464048 A GB1464048 A GB 1464048A GB 5115774 A GB5115774 A GB 5115774A GB 5115774 A GB5115774 A GB 5115774A GB 1464048 A GB1464048 A GB 1464048A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- minute
- give
- conditioner
- salt
- 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
- C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals
- C25D5/44—Aluminium
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
1464048 Treating Al or Al alloy prior to metal coating; electro-depositing copper, tin ASSOCIATED ELECTRICAL INDUSTRIES Ltd 17 Oct 1975 [26 Nov 1974] 51157/74 Headings C7B and C7E Al or Al-based alloy is etched in aqueous NH 4 HF 2 of concentration 10-100 g/l, with or without a simultaneous or subsequent immersion in a conditioner consisting of a Ni salt and a Zn salt in aqueous acid, said aqueous NH 4 HF 2 either containing no other constituents, or, for simultaneous etching/conditioning, containing only the said conditioner ingredients in addition to the NH 4 HF 2 , rinsing said surface with water immediately after said treatment(s) or each of said treatments, and is coated with metal immediately after the last said rinsing step. The conditioner, used alone, may contain 1-200 g/1 NiCl 2 and 0À1-50 g/1 ZnCl 2 or ZnSO 4 plus NH 4 HF 2 ; used for simultaneous etching it also contains 25 ml/l HCl; immersion is for 5-15 sees. at room temperature. The treated Al may be coated with Sn by hotdipping in an ultrasonically agitated bath, or with Cu electrolytically followed by electrolytic or hotdipped Sn. Electrolytic Cu plating may be (1) at 55-60‹C and 20 mA/cm<SP>2</SP> for 1 minute in 94-119 g/l Cu pyrophosphate, 300-375 g/1, K 4 P 2 O 7 , 1-3 ml 0À88 NH 3 , at pH 8À6-8À9 to give a 0À6Á coating or (2) at 60-70‹C and 30mA/cm<SP>2</SP> for 1 minute in 55 g/1 Cu(CN) 2 , 67 g/l NaCN, 40 g/l Rochelle salt, 30 g/1 Na 2 CO 3 to give a 0À8Á coating, and Sn plating may be for 1 minute at 20 mA/cm<SP>2</SP> in a commercial bath containing 28-31 g/1 Sn, 112-138 g/l free H 2 SO 4 and 40 ml of an unspecified additive to give a 0À5Á coating. The process may be applied to continuous coating of Al wire, which passes through a succession of appropriate baths.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5115774A GB1464048A (en) | 1975-10-17 | 1975-10-17 | Processes for the manufacture of aluminium articles coated with metals |
| ZA00756737A ZA756737B (en) | 1975-10-17 | 1975-10-27 | Improvements in or relating to processes for coating aluminium articles with metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5115774A GB1464048A (en) | 1975-10-17 | 1975-10-17 | Processes for the manufacture of aluminium articles coated with metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1464048A true GB1464048A (en) | 1977-02-09 |
Family
ID=10458882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5115774A Expired GB1464048A (en) | 1975-10-17 | 1975-10-17 | Processes for the manufacture of aluminium articles coated with metals |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1464048A (en) |
| ZA (1) | ZA756737B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0924320A2 (en) * | 1997-12-16 | 1999-06-23 | Totoku Electric Co., Ltd. | Method of fabricating a copper plated aluminium wire, a plated aluminium wire, an insulating plated aluminium wire, methods of fabricating thereof, and a composite lightweighted plated aluminium wire |
| WO2005010233A3 (en) * | 2003-06-26 | 2005-02-24 | Atotech Deutschland Gmbh | Aqueous acidic immersion plating solutions and methods for plating on aluminum and aluminum alloys |
| EP3093376A1 (en) * | 2015-05-11 | 2016-11-16 | Bticino S.P.A. | Process for continuous electrochemical tinning of an aluminium wire |
-
1975
- 1975-10-17 GB GB5115774A patent/GB1464048A/en not_active Expired
- 1975-10-27 ZA ZA00756737A patent/ZA756737B/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0924320A2 (en) * | 1997-12-16 | 1999-06-23 | Totoku Electric Co., Ltd. | Method of fabricating a copper plated aluminium wire, a plated aluminium wire, an insulating plated aluminium wire, methods of fabricating thereof, and a composite lightweighted plated aluminium wire |
| EP0924320A3 (en) * | 1997-12-16 | 2001-09-12 | Totoku Electric Co., Ltd. | Method of fabricating a copper plated aluminium wire, a plated aluminium wire, an insulating plated aluminium wire, methods of fabricating thereof, and a composite lightweighted plated aluminium wire |
| WO2005010233A3 (en) * | 2003-06-26 | 2005-02-24 | Atotech Deutschland Gmbh | Aqueous acidic immersion plating solutions and methods for plating on aluminum and aluminum alloys |
| US7407689B2 (en) | 2003-06-26 | 2008-08-05 | Atotech Deutschland Gmbh | Aqueous acidic immersion plating solutions and methods for plating on aluminum and aluminum alloys |
| CN1839220B (en) * | 2003-06-26 | 2012-12-05 | 爱托特奇德国股份有限公司 | Aqueous acidic immersion plating solutions and methods for plating on aluminum and aluminum alloys |
| EP3093376A1 (en) * | 2015-05-11 | 2016-11-16 | Bticino S.P.A. | Process for continuous electrochemical tinning of an aluminium wire |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA756737B (en) | 1976-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees | ||
| PCNP | Patent ceased through non-payment of renewal fee |