GB482689A - Improvements in and relating to the protection of magnesium rich alloys - Google Patents
Improvements in and relating to the protection of magnesium rich alloysInfo
- Publication number
- GB482689A GB482689A GB10354/37A GB1035437A GB482689A GB 482689 A GB482689 A GB 482689A GB 10354/37 A GB10354/37 A GB 10354/37A GB 1035437 A GB1035437 A GB 1035437A GB 482689 A GB482689 A GB 482689A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphate
- per cent
- bath
- dichromate
- rich alloys
- 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
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title abstract 2
- 229910045601 alloy Inorganic materials 0.000 title abstract 2
- 239000000956 alloy Substances 0.000 title abstract 2
- 239000011777 magnesium Substances 0.000 title abstract 2
- 229910052749 magnesium Inorganic materials 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- DOIXGGGORNAJAT-UHFFFAOYSA-M [NH4+].[Ni+].[O-]S([O-])(=O)=O Chemical compound [NH4+].[Ni+].[O-]S([O-])(=O)=O DOIXGGGORNAJAT-UHFFFAOYSA-M 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 238000007654 immersion Methods 0.000 abstract 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 abstract 2
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 abstract 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 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 abstract 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- 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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/30—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also trivalent chromium
-
- 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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
-
- 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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/26—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also organic compounds
- C23C22/27—Acids
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)
- Chemical Treatment Of Metals (AREA)
- Chemically Coating (AREA)
Abstract
Articles, or portions thereof, formed of magnesium-rich alloys are given a corrosion-resistant coating by immersion in a heated aqueous solution of alkali dichromate and nickel sulphate, chromium sulphate, or nickel ammonium sulphate. The articles are cleaned, dipped in a bath of 10 per cent nitric acid, and then treated for ten minutes in a 10 per cent solution of boiling caustic soda before immersion in the coating bath. Preferably the bath includes up to 20 per cent sodium or potassium dichromate and up to 10 per cent sulphate. In an example the bath consists of 100 grams each of sodium dichromate and nickel ammonium sulphate in 1 litre of water.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10354/37A GB482689A (en) | 1937-04-12 | 1937-04-12 | Improvements in and relating to the protection of magnesium rich alloys |
| GB26684/38A GB510487A (en) | 1937-04-12 | 1938-09-13 | Improvements in and relating to the protection of magnesium rich alloys |
| FR848117D FR848117A (en) | 1937-04-12 | 1938-12-28 | Improvements to the protection of alloys rich in magnesium |
| US255165A US2224245A (en) | 1937-04-12 | 1939-02-07 | Protection of magnesium-rich alloys |
| BE435038D BE435038A (en) | 1937-04-12 | 1939-06-22 | IMPROVEMENTS IN THE PROTECTION OF ALLOYS RICH IN MAGNESIUM |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10354/37A GB482689A (en) | 1937-04-12 | 1937-04-12 | Improvements in and relating to the protection of magnesium rich alloys |
| GB26684/38A GB510487A (en) | 1937-04-12 | 1938-09-13 | Improvements in and relating to the protection of magnesium rich alloys |
| GB848117X | 1938-09-13 | ||
| GB2224245X | 1938-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB482689A true GB482689A (en) | 1938-04-04 |
Family
ID=61187025
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10354/37A Expired GB482689A (en) | 1937-04-12 | 1937-04-12 | Improvements in and relating to the protection of magnesium rich alloys |
| GB26684/38A Expired GB510487A (en) | 1937-04-12 | 1938-09-13 | Improvements in and relating to the protection of magnesium rich alloys |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26684/38A Expired GB510487A (en) | 1937-04-12 | 1938-09-13 | Improvements in and relating to the protection of magnesium rich alloys |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2224245A (en) |
| BE (1) | BE435038A (en) |
| FR (1) | FR848117A (en) |
| GB (2) | GB482689A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE740325C (en) * | 1939-07-06 | 1943-11-30 | Deutsches Reich Vertreten Durc | Acid-free bath for the production of anti-corrosion coatings on magnesium alloys |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2459365A (en) * | 1942-04-03 | 1949-01-18 | Permanente Metals Corp | Electrolytic protective surface treatment of magnesium base alloys |
| US2480448A (en) * | 1943-04-28 | 1949-08-30 | Permanente Metals Corp | Protective surface treatment of magnesium base alloys |
| US2472592A (en) * | 1945-01-09 | 1949-06-07 | Allegheny Ludlum Steel | Inorganic insulating coating for electrical steel sheet and strip |
| US2483510A (en) * | 1945-04-14 | 1949-10-04 | United Chromium Inc | Composition for dip coating solution and dip process for coloring zinc |
| US2628925A (en) * | 1947-06-24 | 1953-02-17 | Rheem Mfg Co | Bright corrosion resistant coating of metals |
| US3298876A (en) * | 1963-09-09 | 1967-01-17 | R O Hull & Company Inc | Process and composition for forming clear protective coatings on cadmium metal surfaces |
| DE19740248A1 (en) * | 1997-09-12 | 1999-03-18 | Henkel Kgaa | Aqueous chromating or post-passivating solution |
-
1937
- 1937-04-12 GB GB10354/37A patent/GB482689A/en not_active Expired
-
1938
- 1938-09-13 GB GB26684/38A patent/GB510487A/en not_active Expired
- 1938-12-28 FR FR848117D patent/FR848117A/en not_active Expired
-
1939
- 1939-02-07 US US255165A patent/US2224245A/en not_active Expired - Lifetime
- 1939-06-22 BE BE435038D patent/BE435038A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE740325C (en) * | 1939-07-06 | 1943-11-30 | Deutsches Reich Vertreten Durc | Acid-free bath for the production of anti-corrosion coatings on magnesium alloys |
Also Published As
| Publication number | Publication date |
|---|---|
| US2224245A (en) | 1940-12-10 |
| FR848117A (en) | 1939-10-24 |
| BE435038A (en) | 1939-07-08 |
| GB510487A (en) | 1939-08-02 |
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