GB551261A - Improvements relating to the production of coatings on metal surfaces - Google Patents
Improvements relating to the production of coatings on metal surfacesInfo
- Publication number
- GB551261A GB551261A GB1282141A GB1282141A GB551261A GB 551261 A GB551261 A GB 551261A GB 1282141 A GB1282141 A GB 1282141A GB 1282141 A GB1282141 A GB 1282141A GB 551261 A GB551261 A GB 551261A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- coatings
- production
- metal surfaces
- phosphate
- 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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/12—Orthophosphates containing zinc cations
- C23C22/14—Orthophosphates containing zinc cations containing also chlorate anions
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)
Abstract
551,261. Modifying metallic surfaces. PYRENE CO., Ltd., (Parker Rust-Proof Co,.). Oct. 3, 1941, No. 12821. [Class 82 (ii)] Coatings are produced on metal surfaces by an acid phosphate solution containing a nitrate or nitrite or both and at least one chlorate. The solution, generally containing zinc dihydrogen phosphate, is sprayed on to the surface at a temperature of 115-180‹F, the pH value of the solution being maintained at 2.5-2.9 by the continuous addition of a neutralising agent such as sodium, hydroxide, and the solution circulated and resprayed. The solution may also contain a copper compound, e.g. copper carbonate, as an accelerator and the coated surface may be treated with chromic acid. In an example, the production of a coating solution from zinc oxide, nitric and phosphoric acids, sodium chlorate and copper carbonate is referred to. Instead of zinc phosphate, other phosphates such as of manganese may be used. Specifications 346,401, 386,739 and 514,443 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1282141A GB551261A (en) | 1941-10-03 | 1941-10-03 | Improvements relating to the production of coatings on metal surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1282141A GB551261A (en) | 1941-10-03 | 1941-10-03 | Improvements relating to the production of coatings on metal surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB551261A true GB551261A (en) | 1943-02-15 |
Family
ID=10011750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1282141A Expired GB551261A (en) | 1941-10-03 | 1941-10-03 | Improvements relating to the production of coatings on metal surfaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB551261A (en) |
-
1941
- 1941-10-03 GB GB1282141A patent/GB551261A/en not_active Expired
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