GB599785A - Improvements in or relating to processes for the production of protective coatings on the surfaces of metals and alloys - Google Patents
Improvements in or relating to processes for the production of protective coatings on the surfaces of metals and alloysInfo
- Publication number
- GB599785A GB599785A GB1444146A GB1444146A GB599785A GB 599785 A GB599785 A GB 599785A GB 1444146 A GB1444146 A GB 1444146A GB 1444146 A GB1444146 A GB 1444146A GB 599785 A GB599785 A GB 599785A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphates
- alloys
- metals
- cobalt
- specifications
- 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
- 229910045601 alloy Inorganic materials 0.000 title abstract 5
- 239000000956 alloy Substances 0.000 title abstract 5
- 229910052751 metal Inorganic materials 0.000 title abstract 5
- 239000002184 metal Substances 0.000 title abstract 5
- 150000002739 metals Chemical class 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- 239000011253 protective coating Substances 0.000 title abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 4
- 229910052803 cobalt Inorganic materials 0.000 abstract 4
- 239000010941 cobalt Substances 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 229910001465 mixed metal phosphate Inorganic materials 0.000 abstract 4
- 229910052759 nickel Inorganic materials 0.000 abstract 4
- 235000021317 phosphate Nutrition 0.000 abstract 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 4
- 239000000243 solution Substances 0.000 abstract 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 4
- 229910052725 zinc Inorganic materials 0.000 abstract 4
- 239000011701 zinc Substances 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 150000001340 alkali metals Chemical class 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 150000001450 anions Chemical class 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 229910052788 barium Inorganic materials 0.000 abstract 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium(0) Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 2
- 229910052791 calcium Inorganic materials 0.000 abstract 2
- 239000011575 calcium Substances 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 239000010949 copper Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 2
- 229910052749 magnesium Inorganic materials 0.000 abstract 2
- 239000011777 magnesium Substances 0.000 abstract 2
- 229910001463 metal phosphate Inorganic materials 0.000 abstract 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 2
- 229910052700 potassium Inorganic materials 0.000 abstract 2
- 239000011591 potassium Substances 0.000 abstract 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 abstract 2
- 229910052708 sodium Inorganic materials 0.000 abstract 2
- 239000011734 sodium Substances 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract 2
- 229910052712 strontium Inorganic materials 0.000 abstract 2
- 238000005260 corrosion Methods 0.000 abstract 1
- -1 e.g. Substances 0.000 abstract 1
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
-
- 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
- C23C22/22—Orthophosphates containing alkaline earth metal cations
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
In a process and solution for producing corrosion-resistant surfaces on metals and alloys, e.g., iron, steel, zinc, aluminium and its alloys, the surface is treated with an aqueous solution containing the acid radicle of phosphoric acid and having dissolved therein a minor proportion, i.e., an amount up to their maximum solubility in the bath, of one or more complex metal phosphates or mixed metal phosphates having at least 50 per cent. of one of the said metals in the anion. The complex phosphates of barium, calcium, strontium, copper, cobalt and nickel are said to be particularly suitable, and structural formulae are given both for the hydrated and anhydrous forms; whilst the mixed metal phosphates of an alkali metal (sodium or potassium) and cobalt, zinc, nickel or magnesium are likewise said to be particularly suitable and their structural formulae are given. These phosphates may be heated to approximately 200 DEG C. before being added to the phosphating bath-usually being added in solution in phosphoric acid-and the phosphating baths described in Specifications 419,487 and 447,176, [both in Group II], are preferred. Specifications 599,728 and 599,784 also are referred to.ALSO:In a process and solution for producing a protective coating on the surfaces of metals and alloys, e.g. iron, steel, zinc, aluminium and its alloys, the surface is treated with an aqueous solution containing the acid radicle of phosphoric acid and having dissolved therein a minor proportion, i.e. an amount up to their maximum solubility in the bath, of one or more complex metal phosphates or mixed metal phosphates having at least 50 per cent of one of the said metals in the anion. The complex phosphates of barium, calcium, strontium, copper, cobalt and nickel are said to be particularly suitable and structural formul are given both for the hydrated and anhydrous forms; whilst the mixed metal phosphates of an alkali metal (sodium or potassium) and cobalt, zinc, nickel or magnesium are likewise said to be particularly suitable and their structural formul are given. These phosphates may be heated to approximately 200 DEG C. before being added to the phosphating bath-usually being added in solution in phosphoric acid-and the phosphating baths described in Specifications 419,487 and 447,176 are preferred. Specifications 599,728 and 599,784 also are referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB599785A true GB599785A (en) | 1948-03-19 |
Family
ID=1730740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1444146A Expired GB599785A (en) | 1946-05-13 | Improvements in or relating to processes for the production of protective coatings on the surfaces of metals and alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB599785A (en) |
-
1946
- 1946-05-13 GB GB1444146A patent/GB599785A/en not_active Expired
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