AU5977373A - Compositions and processes for producing chromium conversion coatings - Google Patents

Compositions and processes for producing chromium conversion coatings

Info

Publication number
AU5977373A
AU5977373A AU59773/73A AU5977373A AU5977373A AU 5977373 A AU5977373 A AU 5977373A AU 59773/73 A AU59773/73 A AU 59773/73A AU 5977373 A AU5977373 A AU 5977373A AU 5977373 A AU5977373 A AU 5977373A
Authority
AU
Australia
Prior art keywords
compositions
processes
conversion coatings
chromium conversion
producing chromium
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
AU59773/73A
Other versions
AU478974B2 (en
Inventor
WARD PRUST and WAYNE CHARLES GLASSMAN MICHAEL
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.)
Dominion Foundries and Steel Ltd
Original Assignee
Dominion Foundries and Steel Ltd
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 Dominion Foundries and Steel Ltd filed Critical Dominion Foundries and Steel Ltd
Application granted granted Critical
Publication of AU478974B2 publication Critical patent/AU478974B2/en
Publication of AU5977373A publication Critical patent/AU5977373A/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
    • C23C22/34—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 fluorides or complex fluorides
    • C23C22/37—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 fluorides or complex fluorides containing also hexavalent chromium compounds
    • 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
    • C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
    • C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium

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)
  • Inorganic Compounds Of Heavy Metals (AREA)
AU59773/73A 1972-08-31 1973-08-29 Compositions and processes for producing chromium conversion coatings Expired AU478974B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
USUS285314 1972-08-31
US00285314A US3857739A (en) 1972-08-31 1972-08-31 Compositions and processes for producing chromium conversion coatings on surfaces of zinc or cadmium

Publications (2)

Publication Number Publication Date
AU478974B2 AU478974B2 (en) 1975-03-06
AU5977373A true AU5977373A (en) 1975-03-06

Family

ID=

Also Published As

Publication number Publication date
DE2343998A1 (en) 1974-03-07
JPS5652118B2 (en) 1981-12-10
IT990435B (en) 1975-06-20
DE2343998C2 (en) 1983-05-11
US3857739A (en) 1974-12-31
JPS4991933A (en) 1974-09-03
USRE29827E (en) 1978-11-07
FR2198002A1 (en) 1974-03-29
BE804288A (en) 1973-12-17
FR2198002B1 (en) 1978-01-27
GB1425380A (en) 1976-02-18
CA1009549A (en) 1977-05-03

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