GB558792A - Improvements relating to the coating of metal surfaces - Google Patents

Improvements relating to the coating of metal surfaces

Info

Publication number
GB558792A
GB558792A GB456542A GB456542A GB558792A GB 558792 A GB558792 A GB 558792A GB 456542 A GB456542 A GB 456542A GB 456542 A GB456542 A GB 456542A GB 558792 A GB558792 A GB 558792A
Authority
GB
United Kingdom
Prior art keywords
coating
solution
chromium
iron
chloride
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
GB456542A
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.)
Parker Rust Proof Co
Original Assignee
Parker Rust Proof Co
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 Parker Rust Proof Co filed Critical Parker Rust Proof Co
Priority to GB456542A priority Critical patent/GB558792A/en
Publication of GB558792A publication Critical patent/GB558792A/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
    • C23C22/78—Pretreatment of the material to be coated

Abstract

558,792. Coating metals. PYRENE CO., Ltd., and CLIFFORD, W. J. (Parker Rust-Proof Co.). April 7, 1942, No. 4565. [Class 82 (ii)] Protective coatings suitable for subsequent coating are produced on an iron, zinc or steel surface by first treating the latter with a solution of an hydrolysable iron salt to produce a thin, continous visible coating, then applying a dilute solution that includes a compound of hexavelent chromium as its sole or main coating constituent, the total amount of chromium not substantially exceeding that which can be reduced by the ferrous iron in the coating and then drying the second solution on the surface with reduction of most of the chromium to the trivalent form. Ferric salts such as the sulphate, chloride, perchlorate, chlorate, fluoride bromide or bromate or ferrous sulphate, chloride, fluoride and bromide may be used and the chromate solution may include other constituents such as phosphate radicles. The first coating may be rinsed before the application of the second solution either by spraying or immersion. Specification 534,852 is referred to.
GB456542A 1942-04-07 1942-04-07 Improvements relating to the coating of metal surfaces Expired GB558792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB456542A GB558792A (en) 1942-04-07 1942-04-07 Improvements relating to the coating of metal surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB456542A GB558792A (en) 1942-04-07 1942-04-07 Improvements relating to the coating of metal surfaces

Publications (1)

Publication Number Publication Date
GB558792A true GB558792A (en) 1944-01-21

Family

ID=9779540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB456542A Expired GB558792A (en) 1942-04-07 1942-04-07 Improvements relating to the coating of metal surfaces

Country Status (1)

Country Link
GB (1) GB558792A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777785A (en) * 1953-07-30 1957-01-15 Heintz Mfg Co Composition for and method of treating metals as well as the treated product
US2911332A (en) * 1956-05-25 1959-11-03 Kelsey Hayes Co Process of coating metal and resulting articles
US2943961A (en) * 1958-03-07 1960-07-05 Lukens Steel Co Prevention of irregular scaling of ferrous metals
US3053693A (en) * 1958-05-29 1962-09-11 Pennsalt Chemicals Corp Metal coating with hexavalent chromium compound
US3112231A (en) * 1957-06-20 1963-11-26 Pennsalt Chemicals Corp Protective coating

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777785A (en) * 1953-07-30 1957-01-15 Heintz Mfg Co Composition for and method of treating metals as well as the treated product
US2911332A (en) * 1956-05-25 1959-11-03 Kelsey Hayes Co Process of coating metal and resulting articles
US3112231A (en) * 1957-06-20 1963-11-26 Pennsalt Chemicals Corp Protective coating
US2943961A (en) * 1958-03-07 1960-07-05 Lukens Steel Co Prevention of irregular scaling of ferrous metals
US3053693A (en) * 1958-05-29 1962-09-11 Pennsalt Chemicals Corp Metal coating with hexavalent chromium compound

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