IT1124815B - Rivestimenti di trasformazione non costituiti da cromati - Google Patents

Rivestimenti di trasformazione non costituiti da cromati

Info

Publication number
IT1124815B
IT1124815B IT26890/79A IT2689079A IT1124815B IT 1124815 B IT1124815 B IT 1124815B IT 26890/79 A IT26890/79 A IT 26890/79A IT 2689079 A IT2689079 A IT 2689079A IT 1124815 B IT1124815 B IT 1124815B
Authority
IT
Italy
Prior art keywords
chrome
coatings
transformation
constituted
transformation coatings
Prior art date
Application number
IT26890/79A
Other languages
English (en)
Other versions
IT7926890A0 (it
Inventor
Ajay Mangaldas Bengali
Richard Frederick Zuendt
John Leslie Hugh Allan
Philip David Readio
Original Assignee
Dart Ind Inc
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
Priority claimed from US06/045,162 external-priority patent/US4225351A/en
Application filed by Dart Ind Inc filed Critical Dart Ind Inc
Publication of IT7926890A0 publication Critical patent/IT7926890A0/it
Application granted granted Critical
Publication of IT1124815B publication Critical patent/IT1124815B/it

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
    • C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/53—Treatment of zinc or alloys based thereon
    • 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
    • C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates

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)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Paints Or Removers (AREA)
IT26890/79A 1978-10-30 1979-10-29 Rivestimenti di trasformazione non costituiti da cromati IT1124815B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95581278A 1978-10-30 1978-10-30
US06/045,162 US4225351A (en) 1979-06-04 1979-06-04 Non-chromate conversion coatings

Publications (2)

Publication Number Publication Date
IT7926890A0 IT7926890A0 (it) 1979-10-29
IT1124815B true IT1124815B (it) 1986-05-14

Family

ID=26722447

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26890/79A IT1124815B (it) 1978-10-30 1979-10-29 Rivestimenti di trasformazione non costituiti da cromati

Country Status (6)

Country Link
CA (1) CA1134726A (it)
DE (1) DE2943835A1 (it)
FR (1) FR2440413A1 (it)
GB (1) GB2032465B (it)
IT (1) IT1124815B (it)
NL (1) NL7907964A (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1228000A (en) * 1981-04-16 1987-10-13 David E. Crotty Chromium appearance passivate solution and process
US9677031B2 (en) 2014-06-20 2017-06-13 Ecolab Usa Inc. Catalyzed non-staining high alkaline CIP cleaner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210834A (en) * 1975-06-02 1977-01-27 Nippon Packaging Kk Surface treatment of metal

Also Published As

Publication number Publication date
FR2440413B1 (it) 1982-07-02
NL7907964A (nl) 1980-05-02
CA1134726A (en) 1982-11-02
DE2943835A1 (de) 1980-05-08
GB2032465A (en) 1980-05-08
IT7926890A0 (it) 1979-10-29
FR2440413A1 (fr) 1980-05-30
GB2032465B (en) 1982-09-29

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