GB932845A - Method of phosphate-coating metal workpieces and phosphating solution used therefor - Google Patents
Method of phosphate-coating metal workpieces and phosphating solution used thereforInfo
- Publication number
- GB932845A GB932845A GB2195760A GB2195760A GB932845A GB 932845 A GB932845 A GB 932845A GB 2195760 A GB2195760 A GB 2195760A GB 2195760 A GB2195760 A GB 2195760A GB 932845 A GB932845 A GB 932845A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- phosphate
- treatment
- water
- workpieces
- 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
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
Metal workpieces are descaled and phosphated by treatment with a single aqueous solution containing, by weight, 8-25% of phosphoric acid in free and chemicallycombined form, 1-5% of phosphate, 0.1-1.5% of an acid other than phosphoric acid, 10-40% of an alcohol with a viscosity greater than that of water, 8-36% of an organic solvent miscible with water and with a viscosity lower than that of water, and 1-6% of an accelerator. The workpieces are immediately dried after treatment without prior rinsing. Specifically, the phosphate may be of zinc or manganese; the acid other than phosphoric may be hydrofluoric, tartaric, oxalic or citric acid; the alcohol may be isopropyl, butyl or undecyl alcohol; the organic solvent may be methanol, ethanol or acetone; and the accelerator may be chromic acid, nitric acid, zinc nitrate or sodium nitrite. Treatment may be effected by immersion, e.g. in a tumbling barrel, flowing, or spraying, e.g. in a centrifuge. The treated workpieces, which may be composed of iron, aluminium or zinc, are allowed to dry in air. Specification 493,365 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2195760A GB932845A (en) | 1960-06-23 | 1960-06-23 | Method of phosphate-coating metal workpieces and phosphating solution used therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2195760A GB932845A (en) | 1960-06-23 | 1960-06-23 | Method of phosphate-coating metal workpieces and phosphating solution used therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB932845A true GB932845A (en) | 1963-07-31 |
Family
ID=10171594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2195760A Expired GB932845A (en) | 1960-06-23 | 1960-06-23 | Method of phosphate-coating metal workpieces and phosphating solution used therefor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB932845A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147567A (en) * | 1976-11-24 | 1979-04-03 | Imperial Chemical Industries Limited | Phosphating process |
| CN112391618A (en) * | 2019-08-12 | 2021-02-23 | 东莞市颖兴金属表面处理材料有限公司 | Environment-friendly phosphating solution containing graphene oxide and preparation method thereof |
| CN115522191A (en) * | 2022-10-11 | 2022-12-27 | 山东商业职业技术学院 | Phosphating solution for metal surface treatment and preparation method and application thereof |
-
1960
- 1960-06-23 GB GB2195760A patent/GB932845A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147567A (en) * | 1976-11-24 | 1979-04-03 | Imperial Chemical Industries Limited | Phosphating process |
| CN112391618A (en) * | 2019-08-12 | 2021-02-23 | 东莞市颖兴金属表面处理材料有限公司 | Environment-friendly phosphating solution containing graphene oxide and preparation method thereof |
| CN115522191A (en) * | 2022-10-11 | 2022-12-27 | 山东商业职业技术学院 | Phosphating solution for metal surface treatment and preparation method and application thereof |
| CN115522191B (en) * | 2022-10-11 | 2024-06-07 | 山东商业职业技术学院 | A phosphating solution for metal surface treatment and its preparation method and application |
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