GB554654A - Improvements in or relating to the production of phosphate coatings upon ferrous metal surfaces - Google Patents
Improvements in or relating to the production of phosphate coatings upon ferrous metal surfacesInfo
- Publication number
- GB554654A GB554654A GB1084141D GB1084141D GB554654A GB 554654 A GB554654 A GB 554654A GB 1084141 D GB1084141 D GB 1084141D GB 1084141 D GB1084141 D GB 1084141D GB 554654 A GB554654 A GB 554654A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- relating
- production
- ferrous metal
- metal surfaces
- 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
- C23C22/16—Orthophosphates containing zinc cations containing also peroxy-compounds
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)
- Chemically Coating (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
554,654. Coating metals. ABBEY, A. (American Chemical Paint Co.). Aug. 25, 1941, No. 10841. [Class 82 (ii)] The surfaces of ferrous articles are coated by subjecting them to the action of an acid zinc phosphate solution containing hydrogen peroxide and maintaining the operating pH value substantially constant and above the pH at equilibrium of the solution at the same temperature by the substantially continuous addition of a neutralising agent for phosphoric acid, e.g. caustic soda. the solution being applied at a temperature not above 190‹ F. The solution may be sprayed on the surfaces, and its pH maintained at between 0.1-0.4 above the equilibrium value so as to produce a paint-binding phosphate coating within one minute, and contains 1-5 gms. per litre of zinc, and 0.04-0.24 per litre of hydrogen peroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1084141D GB554654A (en) | 1941-08-25 | 1941-08-25 | Improvements in or relating to the production of phosphate coatings upon ferrous metal surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1084141D GB554654A (en) | 1941-08-25 | 1941-08-25 | Improvements in or relating to the production of phosphate coatings upon ferrous metal surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB554654A true GB554654A (en) | 1943-07-14 |
Family
ID=9975312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1084141D Expired GB554654A (en) | 1941-08-25 | 1941-08-25 | Improvements in or relating to the production of phosphate coatings upon ferrous metal surfaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB554654A (en) |
-
1941
- 1941-08-25 GB GB1084141D patent/GB554654A/en not_active Expired
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