GB633650A - 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 metals

Info

Publication number
GB633650A
GB633650A GB1365247A GB1365247A GB633650A GB 633650 A GB633650 A GB 633650A GB 1365247 A GB1365247 A GB 1365247A GB 1365247 A GB1365247 A GB 1365247A GB 633650 A GB633650 A GB 633650A
Authority
GB
United Kingdom
Prior art keywords
zinc
hydroxylamine
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
Application number
GB1365247A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RONALD WILLIAM PARKER
Original Assignee
RONALD WILLIAM PARKER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RONALD WILLIAM PARKER filed Critical RONALD WILLIAM PARKER
Priority to GB1365247A priority Critical patent/GB633650A/en
Publication of GB633650A publication Critical patent/GB633650A/en
Expired legal-status Critical Current

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
    • C23C22/23—Condensed phosphates

Abstract

Iron, steel, zinc or zinc alloy surfaces are immersed in a weak solution of acid ferrous phosphate and phosphoric acid containing a sulphonated aromatic hydrocarbon having an isopropyl radicle in the nucleus, such as isopropyl naphthalene sulphonic acid, as a wetting agent; ions of one or more of manganese, cobalt, nickel or zinc produced by secondary ionisation of ammonium metal pentametaphosphates; and a reducing agent consisting either of hydroxylamine orthophosphate or hydroxylamine amidophosphate. Treatment is preferably effected at 96-100 DEG C.
GB1365247A 1947-05-21 1947-05-21 Improvements in or relating to the production of phosphate coatings on metals Expired GB633650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1365247A GB633650A (en) 1947-05-21 1947-05-21 Improvements in or relating to the production of phosphate coatings on metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1365247A GB633650A (en) 1947-05-21 1947-05-21 Improvements in or relating to the production of phosphate coatings on metals

Publications (1)

Publication Number Publication Date
GB633650A true GB633650A (en) 1949-12-19

Family

ID=10026919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1365247A Expired GB633650A (en) 1947-05-21 1947-05-21 Improvements in or relating to the production of phosphate coatings on metals

Country Status (1)

Country Link
GB (1) GB633650A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970846C (en) * 1951-06-28 1958-11-06 Metallgesellschaft Ag Process to prevent sludge formation in phosphating baths with non-layer-forming metal ions
DE973195C (en) * 1951-01-18 1959-12-17 Metallgesellschaft Ag Process for coating metal surfaces with a phosphate layer
US2930723A (en) * 1954-12-07 1960-03-29 Walterisation Company Ltd Surface treatment of metals
DE974196C (en) * 1942-12-11 1960-10-13 Metallgesellschaft Ag Process for the production of smooth phosphate coatings on metallic objects
DE1192489B (en) * 1951-11-19 1965-05-06 Metallgesellschaft Ag Phosphating process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974196C (en) * 1942-12-11 1960-10-13 Metallgesellschaft Ag Process for the production of smooth phosphate coatings on metallic objects
DE973195C (en) * 1951-01-18 1959-12-17 Metallgesellschaft Ag Process for coating metal surfaces with a phosphate layer
DE970846C (en) * 1951-06-28 1958-11-06 Metallgesellschaft Ag Process to prevent sludge formation in phosphating baths with non-layer-forming metal ions
DE1192489B (en) * 1951-11-19 1965-05-06 Metallgesellschaft Ag Phosphating process
US2930723A (en) * 1954-12-07 1960-03-29 Walterisation Company Ltd Surface treatment of metals

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