FR1490739A - Improvements in the surface treatment of metals and alloys with chromic acid - Google Patents

Improvements in the surface treatment of metals and alloys with chromic acid

Info

Publication number
FR1490739A
FR1490739A FR66831A FR66831A FR1490739A FR 1490739 A FR1490739 A FR 1490739A FR 66831 A FR66831 A FR 66831A FR 66831 A FR66831 A FR 66831A FR 1490739 A FR1490739 A FR 1490739A
Authority
FR
France
Prior art keywords
alloys
metals
surface treatment
chromic acid
chromic
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
FR66831A
Other languages
French (fr)
Inventor
Andre Klein
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.)
Kuhlmann SA
Original Assignee
Kuhlmann SA
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 Kuhlmann SA filed Critical Kuhlmann SA
Priority to FR66831A priority Critical patent/FR1490739A/en
Application granted granted Critical
Publication of FR1490739A publication Critical patent/FR1490739A/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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/12—Light metals
    • 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
    • C23C22/24—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 hexavalent chromium compounds

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)
FR66831A 1966-06-24 1966-06-24 Improvements in the surface treatment of metals and alloys with chromic acid Expired FR1490739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR66831A FR1490739A (en) 1966-06-24 1966-06-24 Improvements in the surface treatment of metals and alloys with chromic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR66831A FR1490739A (en) 1966-06-24 1966-06-24 Improvements in the surface treatment of metals and alloys with chromic acid

Publications (1)

Publication Number Publication Date
FR1490739A true FR1490739A (en) 1967-08-04

Family

ID=8611734

Family Applications (1)

Application Number Title Priority Date Filing Date
FR66831A Expired FR1490739A (en) 1966-06-24 1966-06-24 Improvements in the surface treatment of metals and alloys with chromic acid

Country Status (1)

Country Link
FR (1) FR1490739A (en)

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