JP2953474B2 - アルミニウムおよびアルミニウム合金の電解処理方法 - Google Patents
アルミニウムおよびアルミニウム合金の電解処理方法Info
- Publication number
- JP2953474B2 JP2953474B2 JP2300018A JP30001890A JP2953474B2 JP 2953474 B2 JP2953474 B2 JP 2953474B2 JP 2300018 A JP2300018 A JP 2300018A JP 30001890 A JP30001890 A JP 30001890A JP 2953474 B2 JP2953474 B2 JP 2953474B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- workpiece
- acid
- coloring
- current
- 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 - Fee Related
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 33
- 229910000838 Al alloy Inorganic materials 0.000 title claims description 12
- 238000004040 coloring Methods 0.000 claims description 48
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 34
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 20
- 239000002253 acid Substances 0.000 claims description 17
- 239000003086 colorant Substances 0.000 claims description 17
- 239000008151 electrolyte solution Substances 0.000 claims description 17
- 238000007743 anodising Methods 0.000 claims description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- -1 hydroxy, amino Chemical group 0.000 claims description 10
- 150000005846 sugar alcohols Polymers 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 235000011187 glycerol Nutrition 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 4
- 229930194542 Keto Natural products 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 3
- 125000000468 ketone group Chemical group 0.000 claims description 3
- 150000001735 carboxylic acids Chemical class 0.000 claims 2
- 238000002048 anodisation reaction Methods 0.000 description 10
- 239000003792 electrolyte Substances 0.000 description 9
- 229960004275 glycolic acid Drugs 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 229910000365 copper sulfate Inorganic materials 0.000 description 7
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric Acid Chemical class [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 229940078494 nickel acetate Drugs 0.000 description 5
- 238000002203 pretreatment Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- RCIVOBGSMSSVTR-UHFFFAOYSA-L stannous sulfate Chemical compound [SnH2+2].[O-]S([O-])(=O)=O RCIVOBGSMSSVTR-UHFFFAOYSA-L 0.000 description 4
- 235000002906 tartaric acid Nutrition 0.000 description 4
- 239000011975 tartaric acid Substances 0.000 description 4
- 229910000375 tin(II) sulfate Inorganic materials 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Chemical compound CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000010407 anodic oxide Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- KVZLHPXEUGJPAH-UHFFFAOYSA-N 2-oxidanylpropanoic acid Chemical compound CC(O)C(O)=O.CC(O)C(O)=O KVZLHPXEUGJPAH-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229960002449 glycine Drugs 0.000 description 1
- 235000013905 glycine and its sodium salt Nutrition 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 229940116315 oxalic acid Drugs 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229940107700 pyruvic acid Drugs 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- RDOVSPPEPGMKEB-UHFFFAOYSA-L trisodium;sulfate Chemical compound [Na+].[Na+].[Na+].[O-]S([O-])(=O)=O RDOVSPPEPGMKEB-UHFFFAOYSA-L 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
-
- 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
- C25D11/12—Anodising more than once, e.g. in different baths
-
- 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 Methods And Accessories (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electrolytic Production Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43349889A | 1989-11-08 | 1989-11-08 | |
| US433498 | 1989-11-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03207895A JPH03207895A (ja) | 1991-09-11 |
| JP2953474B2 true JP2953474B2 (ja) | 1999-09-27 |
Family
ID=23720344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2300018A Expired - Fee Related JP2953474B2 (ja) | 1989-11-08 | 1990-11-07 | アルミニウムおよびアルミニウム合金の電解処理方法 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP2953474B2 (enrdf_load_stackoverflow) |
| CA (1) | CA2029438C (enrdf_load_stackoverflow) |
| CH (1) | CH682240A5 (enrdf_load_stackoverflow) |
| DE (1) | DE4034854C2 (enrdf_load_stackoverflow) |
| FR (1) | FR2654118B1 (enrdf_load_stackoverflow) |
| GB (1) | GB2237817B (enrdf_load_stackoverflow) |
| HK (1) | HK100696A (enrdf_load_stackoverflow) |
| IT (1) | IT1242327B (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100718427B1 (ko) * | 1999-06-25 | 2007-05-14 | 니폰게이긴조쿠가부시키가이샤 | 알루미늄재의 전해착색법 |
| DE19938180C1 (de) * | 1999-08-17 | 2001-01-11 | Erbsloeh Ag | Verfahren zum elektrolytischen Färben von Werkstücken aus Aluminium oder Aluminiumlegierungen |
| JP4660760B2 (ja) * | 2005-06-02 | 2011-03-30 | 国立大学法人広島大学 | アルミニウム又は／及びアルミニウム合金の陽極酸化皮膜の形成方法およびその方法により形成される陽極酸化皮膜 |
| PL241203B1 (pl) * | 2020-07-29 | 2022-08-22 | Canpack Spolka Akcyjna | Sposób wytwarzania powłoki interferencyjnej |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3634208A (en) * | 1968-09-26 | 1972-01-11 | Aiden Kk | Coloring method of aluminum anodic oxide coating film |
| US3773631A (en) * | 1970-10-16 | 1973-11-20 | Blasberg Gmbh & Co Kg Friedr | Aqueous electrolytic bath for coloring anodic oxide layers on aluminum and aluminum alloy substrates and process for coloring said substrates |
| FR2178820A2 (en) * | 1972-04-04 | 1973-11-16 | Keller Eberhard | Colouring anodised aluminium - or alloys by electrolysing in modified tin salts soln |
| DE2548177A1 (de) * | 1975-10-28 | 1977-05-12 | Alcan Res & Dev | Elektrolytisches faerben von anodisch behandeltem aluminium |
| US4251330A (en) * | 1978-01-17 | 1981-02-17 | Alcan Research And Development Limited | Electrolytic coloring of anodized aluminium by means of optical interference effects |
| US4179342A (en) * | 1978-06-28 | 1979-12-18 | Reynolds Metals Company | Coating system method for coloring aluminum |
| US4180443A (en) * | 1978-06-28 | 1979-12-25 | Reynolds Metals Company | Method for coloring aluminum |
| ES8201232A1 (es) * | 1981-01-16 | 1981-12-01 | Ronain Sa | Procedimiento de coloracion por via electrolitica de una pieza de aluminio o de aleacion de aluminio |
| EP0065421B1 (en) * | 1981-05-19 | 1985-08-28 | Sankyo Aluminium Industry Company Limited | Method of treating a surface of an aluminum to form a pattern thereon |
| IT1153213B (it) * | 1982-10-07 | 1987-01-14 | Grace Italiana Spa | Procedimento di elettrocolorazione dell'alluminio e delle sue leghe in tonalita' giallo-arancione |
| DE3530934C1 (de) * | 1985-08-29 | 1987-04-16 | Chemal Gmbh & Co Kg | Verfahren zur gleichmaessigen elektrolytischen Einfaerbung von eloxiertem Aluminium bzw. Aluminiumlegierungen |
-
1990
- 1990-11-02 DE DE4034854A patent/DE4034854C2/de not_active Expired - Fee Related
- 1990-11-05 GB GB9023974A patent/GB2237817B/en not_active Expired - Fee Related
- 1990-11-06 IT IT48443A patent/IT1242327B/it active IP Right Grant
- 1990-11-06 CH CH3514/90A patent/CH682240A5/de not_active IP Right Cessation
- 1990-11-07 JP JP2300018A patent/JP2953474B2/ja not_active Expired - Fee Related
- 1990-11-07 CA CA002029438A patent/CA2029438C/en not_active Expired - Fee Related
- 1990-11-07 FR FR9013826A patent/FR2654118B1/fr not_active Expired - Fee Related
-
1996
- 1996-06-13 HK HK100696A patent/HK100696A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH682240A5 (enrdf_load_stackoverflow) | 1993-08-13 |
| FR2654118A1 (fr) | 1991-05-10 |
| GB9023974D0 (en) | 1990-12-19 |
| GB2237817A (en) | 1991-05-15 |
| DE4034854C2 (de) | 2000-08-17 |
| CA2029438C (en) | 2001-10-02 |
| IT1242327B (it) | 1994-03-04 |
| IT9048443A1 (it) | 1992-05-06 |
| JPH03207895A (ja) | 1991-09-11 |
| CA2029438A1 (en) | 1991-05-09 |
| FR2654118B1 (fr) | 1993-06-25 |
| HK100696A (en) | 1996-06-21 |
| IT9048443A0 (it) | 1990-11-06 |
| DE4034854A1 (de) | 1991-05-16 |
| GB2237817B (en) | 1994-03-02 |
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