GB530972A - Improvements in and relating to corrosion-resisting layers on articles of aluminium and aluminium alloys - Google Patents
Improvements in and relating to corrosion-resisting layers on articles of aluminium and aluminium alloysInfo
- Publication number
- GB530972A GB530972A GB14862/39A GB1486239A GB530972A GB 530972 A GB530972 A GB 530972A GB 14862/39 A GB14862/39 A GB 14862/39A GB 1486239 A GB1486239 A GB 1486239A GB 530972 A GB530972 A GB 530972A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- concentration
- layers
- salt
- aluminium
- 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
- 229910000838 Al alloy Inorganic materials 0.000 title 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title 1
- 229910052782 aluminium Inorganic materials 0.000 title 1
- 239000004411 aluminium Substances 0.000 title 1
- 239000000243 solution Substances 0.000 abstract 4
- 239000013543 active substance Substances 0.000 abstract 2
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 2
- 239000000194 fatty acid Substances 0.000 abstract 2
- 229930195729 fatty acid Natural products 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- -1 amyl alcohol fatty acids Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Chemical class [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000003292 diminished effect Effects 0.000 abstract 1
- 239000012153 distilled water Substances 0.000 abstract 1
- 150000004665 fatty acids Chemical class 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 229910001389 inorganic alkali salt Inorganic materials 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 abstract 1
- 235000021317 phosphate Nutrition 0.000 abstract 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 abstract 1
- 229910052939 potassium sulfate Inorganic materials 0.000 abstract 1
- 239000001120 potassium sulphate Substances 0.000 abstract 1
- 235000011151 potassium sulphates Nutrition 0.000 abstract 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- QYHFIVBSNOWOCQ-UHFFFAOYSA-N selenic acid Chemical class O[Se](O)(=O)=O QYHFIVBSNOWOCQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 abstract 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
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
530,972. Treating metallic surfaces to produce a modified surface. SCHENK, M., May, 18, 1939, No. 14862. Convention date, May 20, 1938. [Glass 82 (ii)] [Also in Group XXXVI] Corrosion-resisting layers are produced on articles of Al or A1 alloys by forming, chemically or electrolytically, layers consisting at least in part of oxide or hydroxide of Al, and treating said layers with a hot aqueous solution of a neutrally reacting inorganic alkali salt the concentration of which corresponds to at least the saturation concentration at 20‹ C. while its solution in water at this concentration has a pH value between 6.5 and 8.2. The solution may comprise 12 parts by weight of potassium sulphate at 90‹C. Sulphates, thiosulphates, chlorates, perchlorates, phosphates, bromates and selenates may be used. A capillarily active substance, such as propyl or amyl alcohol fatty acids, or their compounds, aromatic sulphonic acids, sulphonated alcohols or sulphonated fatty acids, may be added to reduce the surface tension of the solution. The Specification as open to inspection under Sect. 91 states also that when capillarily active substances are employed, the concentration of the salt solution may be diminished, or reduced to zero ; thus a 2 per cent. solution of the substances known as Invadine B or Jgepon T in distilled water may be used without any addition of salt. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH530972X | 1938-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB530972A true GB530972A (en) | 1940-12-27 |
Family
ID=4518438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14862/39A Expired GB530972A (en) | 1938-05-20 | 1939-05-18 | Improvements in and relating to corrosion-resisting layers on articles of aluminium and aluminium alloys |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR854932A (en) |
| GB (1) | GB530972A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3073760A (en) * | 1959-05-05 | 1963-01-15 | Kaiser Aluminium Chem Corp | Sealing of anodized coatings |
| US3652429A (en) * | 1967-09-08 | 1972-03-28 | Frye Ind Inc | Sealing of colored anodized aluminum |
-
1939
- 1939-05-18 GB GB14862/39A patent/GB530972A/en not_active Expired
- 1939-05-19 FR FR854932D patent/FR854932A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR854932A (en) | 1940-04-27 |
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