GB1090310A - Processes for cleaning and coating metal surfaces - Google Patents
Processes for cleaning and coating metal surfacesInfo
- Publication number
- GB1090310A GB1090310A GB4557866A GB4557866A GB1090310A GB 1090310 A GB1090310 A GB 1090310A GB 4557866 A GB4557866 A GB 4557866A GB 4557866 A GB4557866 A GB 4557866A GB 1090310 A GB1090310 A GB 1090310A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- solution
- iron
- aqueous
- free
- 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
- C23C22/73—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 characterised by the process
-
- 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
- C23C22/60—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 alkaline aqueous solutions with pH greater than 8
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/20—Other heavy metals
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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
A zinc or zinc alloy surface is cleaned by treatment with an aqueous alkaline solution free of silicates and then coated by treatment with a chromate-free aqueous alkaline solution having a pH > 11 and containing a metal that cannot exist as free cations in the alkaline solution but is complexed with an organic complexing agent, e.g. Mg, Cd, Al, Sn, Ti, Sb, Mo, Cr, Ce, W, Mn, Co, Fe or Ni, preferably both Co and Fe (added as nitrates) complexed with sodium hexahydroxy or b -gluco heptoate in NaOH solution. The cleaning solution, preferably having pH > 10 may contain alkali metal (Li, Na, K, Cs or Rb) hydroxide, phosphates, carbonates or borates, e.g. NaOH, Na2CO3, Na3PO4, Na2HPO4, Na4P2O7, K4P2O7 or Na tripolyphosphate, with or without aldonic acid material such as saccharic or (hepta) gluconic acid or salt thereof e.g. sodium gluconate, and/or a compatible surface active agent such as sulphonated fatty acid derivative or phosphate ester, and/or an alkylene glycol e.g. tripropylene glycol. For coating an article having both surfaces of zinc or zinc alloy and surfaces of iron or steel, e.g. a partly galvanized panel, the mixed surfaces are treated, e.g. by immersion, spraying or flowing, with the cleaning solution, then with the coating solution which coats the zinc and cleans the iron surfaces, then with an aqueous acidic zinc or alkali metal phosphate solution to phosphate coat the iron or steel surfaces. The coated surfaces may be given an aqueous CrO3 rinse.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49808765A | 1965-10-19 | 1965-10-19 | |
| US49810365A | 1965-10-19 | 1965-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1090310A true GB1090310A (en) | 1967-11-08 |
Family
ID=27052705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4557866A Expired GB1090310A (en) | 1965-10-19 | 1966-10-12 | Processes for cleaning and coating metal surfaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1090310A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2152955A (en) * | 1984-01-20 | 1985-08-14 | Nihon Parkerizing | Phosphate treatment of zinc-aluminium plated materials |
| GB2188946A (en) * | 1986-04-08 | 1987-10-14 | Pyrene Chemical Services Ltd | Chromoting metal surfaces |
| CN106574353A (en) * | 2014-06-27 | 2017-04-19 | 汉高股份有限及两合公司 | Dry lubricant for zinc coated steel |
-
1966
- 1966-10-12 GB GB4557866A patent/GB1090310A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2152955A (en) * | 1984-01-20 | 1985-08-14 | Nihon Parkerizing | Phosphate treatment of zinc-aluminium plated materials |
| GB2188946A (en) * | 1986-04-08 | 1987-10-14 | Pyrene Chemical Services Ltd | Chromoting metal surfaces |
| GB2188946B (en) * | 1986-04-08 | 1990-08-01 | Pyrene Chemical Services Ltd | Processes and compositions for coating metal surfaces |
| CN106574353A (en) * | 2014-06-27 | 2017-04-19 | 汉高股份有限及两合公司 | Dry lubricant for zinc coated steel |
| EP3161176B1 (en) | 2014-06-27 | 2018-12-19 | Henkel AG & Co. KGaA | Dry lubricant for zinc coated steel |
| US10287665B2 (en) * | 2014-06-27 | 2019-05-14 | Henkel Ag & Co. Kgaa | Dry lubricant for zinc coated steel |
| TWI669416B (en) * | 2014-06-27 | 2019-08-21 | 日商日本派克乃成股份有限公司 | Use of aqueous coating composition and coating method using the same |
| CN106574353B (en) * | 2014-06-27 | 2020-03-10 | 汉高股份有限及两合公司 | Dry lubricant for galvanized steel |
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