GB419469A - Improvements in and relating to the coating of objects made of zinc or covered with zinc - Google Patents
Improvements in and relating to the coating of objects made of zinc or covered with zincInfo
- Publication number
- GB419469A GB419469A GB20297/33A GB2029733A GB419469A GB 419469 A GB419469 A GB 419469A GB 20297/33 A GB20297/33 A GB 20297/33A GB 2029733 A GB2029733 A GB 2029733A GB 419469 A GB419469 A GB 419469A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- bath
- molybdate
- heavy metal
- per cent
- 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
- 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
- C23C22/40—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 molybdates, tungstates or vanadates
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)
- Coating With Molten Metal (AREA)
- Paints Or Removers (AREA)
Abstract
Adherent coloured coatings are formed on articles made of zinc or coated with zinc by dipping the articles in a bath consisting of an aqueous solution of a salt of a heavy metal other than iron to which a small amount, i.e. 0,001-2,5 per cent, of a molybdate, e.g. ammonium molybdate, has been added. The heavy metal salt is preferably nickel sulphate, the amount of sulphate used being up to 5 per cent. An ammonium salt, e.g. 0,2-1,0 per cent of ammonium chloride, may be added to the bath. The bath is regenerated by the addition of tartar which fixes the oxide formed in the bath, the tartar being preferably added together with small quantities of the heavy metal salt and molybdate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE419469X | 1932-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB419469A true GB419469A (en) | 1934-11-13 |
Family
ID=6448987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20297/33A Expired GB419469A (en) | 1932-07-18 | 1933-07-18 | Improvements in and relating to the coating of objects made of zinc or covered with zinc |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB419469A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1633557A1 (en) * | 2003-06-05 | 2006-03-15 | Metal Coatings International Inc. | Compositions and methods for darkening and imparting corrosion-resistant properties to zinc or other active metals |
| AU2013200774B2 (en) * | 2003-06-05 | 2015-03-19 | Metal Coatings International Inc. | Compositions and methods for darkening and imparting corrosion- resistant properties to zinc or other active metals |
-
1933
- 1933-07-18 GB GB20297/33A patent/GB419469A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1633557A1 (en) * | 2003-06-05 | 2006-03-15 | Metal Coatings International Inc. | Compositions and methods for darkening and imparting corrosion-resistant properties to zinc or other active metals |
| JP2006526710A (en) * | 2003-06-05 | 2006-11-24 | メタル・コーティングズ・インターナショナル・インコーポレーテッド | Compositions and methods for darkening and imparting corrosion resistance to zinc or other active metals |
| EP1633557A4 (en) * | 2003-06-05 | 2010-08-25 | Metal Coatings Int Inc | Compositions and methods for darkening and imparting corrosion-resistant properties to zinc or other active metals |
| AU2013200774B2 (en) * | 2003-06-05 | 2015-03-19 | Metal Coatings International Inc. | Compositions and methods for darkening and imparting corrosion- resistant properties to zinc or other active metals |
| CN104532227A (en) * | 2003-06-05 | 2015-04-22 | 金属涂层国际公司 | Compositions and methods for darkening and imparting corrosion-resistant properties to zinc or other active metals |
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