GB672367A - Improvements in or relating to the production of phosphate coatings on metals - Google Patents
Improvements in or relating to the production of phosphate coatings on metalsInfo
- Publication number
- GB672367A GB672367A GB4454/50A GB445450A GB672367A GB 672367 A GB672367 A GB 672367A GB 4454/50 A GB4454/50 A GB 4454/50A GB 445450 A GB445450 A GB 445450A GB 672367 A GB672367 A GB 672367A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphate
- chlorate
- metals
- relating
- production
- 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
Abstract
Successive metallic surfaces are treated with a solution of a primary phosphate of a metal which enters the coating, e.g. zinc, the solution containing a chlorate as the sole oxidizing accelerator, and the solution is replenished in phosphate and chlorate as the treatment proceeds, the initial and replenishment solutions being the same or substantially the same and the ratio of phosphate to chlorate in the solutions being from 1:0.3 to 1:0.6. A non-oxidizing accelerator, e.g. a cobalt, nickel or copper salt may also be present.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE274537X | 1949-02-28 | ||
| DE672367X | 1949-02-28 | ||
| DE984712X | 1949-02-28 | ||
| DEP35461A DE859843C (en) | 1949-02-28 | 1949-03-01 | Process for the phosphating of metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB672367A true GB672367A (en) | 1952-05-21 |
Family
ID=61187831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4454/50A Expired GB672367A (en) | 1949-02-28 | 1950-02-21 | Improvements in or relating to the production of phosphate coatings on metals |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE488453A (en) |
| CH (1) | CH274537A (en) |
| DE (1) | DE859843C (en) |
| FR (1) | FR984712A (en) |
| GB (1) | GB672367A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1046440B (en) * | 1952-06-03 | 1958-12-11 | Exxon Research Engineering Co | Corrosion protection agents and methods for protecting ferrous surfaces |
| IT532546A (en) * | 1955-04-20 | 1900-01-01 | ||
| DE1094068B (en) * | 1955-12-10 | 1960-12-01 | American Chem Paint Co | Process for phosphating metals |
| DE1153222B (en) * | 1956-01-18 | 1963-08-22 | Metallgesellschaft Ag | Process for applying phosphate coatings to metal surfaces and solution for carrying out the process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747085C (en) * | 1940-06-19 | 1944-09-06 | Ig Farbenindustrie Ag | Process for the production of phosphate layers on metals |
| US2293716A (en) * | 1941-02-03 | 1942-08-25 | Parker Rust Proof Co | Metal treating solution |
| DE752142C (en) * | 1941-02-25 | 1950-10-03 | Metallgesellschaft Ag | Phosphate anti-rust process |
-
1949
- 1949-03-01 DE DEP35461A patent/DE859843C/en not_active Expired
- 1949-04-09 CH CH274537D patent/CH274537A/en unknown
- 1949-04-12 BE BE488453D patent/BE488453A/en unknown
- 1949-04-14 FR FR984712D patent/FR984712A/en not_active Expired
-
1950
- 1950-02-21 GB GB4454/50A patent/GB672367A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR984712A (en) | 1951-07-10 |
| BE488453A (en) | 1949-04-30 |
| DE859843C (en) | 1952-12-15 |
| CH274537A (en) | 1951-04-15 |
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