GB1439120A - Process of electrolytically colouring an anodically oxidized coating on aluminium - Google Patents
Process of electrolytically colouring an anodically oxidized coating on aluminiumInfo
- Publication number
- GB1439120A GB1439120A GB4512474A GB4512474A GB1439120A GB 1439120 A GB1439120 A GB 1439120A GB 4512474 A GB4512474 A GB 4512474A GB 4512474 A GB4512474 A GB 4512474A GB 1439120 A GB1439120 A GB 1439120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrolytically
- colouring
- aluminium
- oct
- contain
- 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
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/20—Electrolytic after-treatment
- C25D11/22—Electrolytic after-treatment for colouring 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)
- Electrochemical Coating By Surface Reaction (AREA)
- Electroplating Methods And Accessories (AREA)
- Coloring (AREA)
Abstract
1439120 Electrolytically colouring anodized aluminium SUMITOMO CHEMICAL CO Ltd 17 Oct 1974 [20 Oct 1973] 45124/74 Heading C7B Anodized Al or Al alloy having an anodic oxide coating at least 6Á in thickness is electrolytically coloured by cathodic treatment in an aqueous bath containing a Ni salt and controlled at pH 2À0-5À5. The initial anodizing may be with H 2 SO 4 and/or an aromatic sulphonic acid at 20-30C, with a c.d. of 1-5 A/dm<SP>2</SP> using D.C. with superimposed A.C. The obtained coating, unsealed, may be coloured at 10-40C at a c.d. of 0À05-3À0 A/dm<SP>2</SP> for 2 sec- 3 min. The colouring bath may contain H 2 SO 4 or H 3 BO 3 to improve conductivity and may contain H 2 SO 4 or Ni (OH) 2 or be treated with an anion exchange resin to control the pH; The Al may be initially cleaned successively in NaOH and HNO 3 . Reference has been directed by the Comptroller to Specification 1331365
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11804773A JPS578196B2 (en) | 1973-10-20 | 1973-10-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1439120A true GB1439120A (en) | 1976-06-09 |
Family
ID=14726700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4512474A Expired GB1439120A (en) | 1973-10-20 | 1974-10-17 | Process of electrolytically colouring an anodically oxidized coating on aluminium |
Country Status (8)
Country | Link |
---|---|
US (1) | US3929612A (en) |
JP (1) | JPS578196B2 (en) |
CH (1) | CH587360A5 (en) |
DE (1) | DE2449926A1 (en) |
FR (1) | FR2248340B1 (en) |
GB (1) | GB1439120A (en) |
IT (1) | IT1023079B (en) |
NO (1) | NO743748L (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5129328A (en) * | 1974-08-29 | 1976-03-12 | Sumitomo Chemical Co | Aruminiumu mataha aruminiumugokin no hyomenniseiseisaseta yokyokusankahimaku no denkaichakushokuhoho |
DE2732668C2 (en) * | 1977-07-20 | 1979-08-23 | Langbein-Pfanhauser Werke Ag, 4040 Neuss | Aluminum sheet baking pan and process for its manufacture |
US4431489A (en) * | 1983-03-31 | 1984-02-14 | Kaiser Aluminum & Chemical Corporation | Coloring process for anodized aluminum products |
IT1234708B (en) * | 1989-02-17 | 1992-05-26 | Giuseppe Garuti | SYSTEM FOR FIXING THE ANODIZED ALUMINUM |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3616297A (en) * | 1968-09-23 | 1971-10-26 | Alcan Res & Dev | Method of producing colored coatings of aluminum |
DE1948552B2 (en) * | 1968-09-26 | 1971-04-22 | PROCESS FOR THE ELECTROLYTIC PRODUCTION OF COLORED OXIDE COATINGS ON ALUMINUM | |
JPS4948824B1 (en) * | 1970-03-18 | 1974-12-24 | ||
FR2115061A1 (en) * | 1970-11-26 | 1972-07-07 | Cegedur Gp | ELECTROLYSIS BATH AND ELECTROLYTIC ANODIZED ALUMINUM COLORING PROCESS |
FR2152399B2 (en) * | 1971-06-25 | 1974-03-29 | Cegedur | |
US3798137A (en) * | 1972-03-22 | 1974-03-19 | Aluminum Co Of America | Direct current pigmenting of anodized aluminum |
JPS5231927B2 (en) * | 1972-09-19 | 1977-08-18 |
-
1973
- 1973-10-20 JP JP11804773A patent/JPS578196B2/ja not_active Expired
-
1974
- 1974-10-17 GB GB4512474A patent/GB1439120A/en not_active Expired
- 1974-10-17 NO NO743748A patent/NO743748L/no unknown
- 1974-10-18 IT IT53623/74A patent/IT1023079B/en active
- 1974-10-18 CH CH1397574A patent/CH587360A5/xx not_active IP Right Cessation
- 1974-10-18 FR FR7435170A patent/FR2248340B1/fr not_active Expired
- 1974-10-21 US US516523A patent/US3929612A/en not_active Expired - Lifetime
- 1974-10-21 DE DE19742449926 patent/DE2449926A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2248340A1 (en) | 1975-05-16 |
IT1023079B (en) | 1978-05-10 |
JPS5067241A (en) | 1975-06-05 |
CH587360A5 (en) | 1977-04-29 |
US3929612A (en) | 1975-12-30 |
FR2248340B1 (en) | 1979-02-16 |
JPS578196B2 (en) | 1982-02-15 |
DE2449926A1 (en) | 1975-04-24 |
NO743748L (en) | 1975-05-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |