FR2330778B1 - - Google Patents

Info

Publication number
FR2330778B1
FR2330778B1 FR7529900A FR7529900A FR2330778B1 FR 2330778 B1 FR2330778 B1 FR 2330778B1 FR 7529900 A FR7529900 A FR 7529900A FR 7529900 A FR7529900 A FR 7529900A FR 2330778 B1 FR2330778 B1 FR 2330778B1
Authority
FR
France
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
FR7529900A
Other languages
French (fr)
Other versions
FR2330778A1 (fr
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Priority to FR7529900A priority Critical patent/FR2330778A1/fr
Publication of FR2330778A1 publication Critical patent/FR2330778A1/fr
Application granted granted Critical
Publication of FR2330778B1 publication Critical patent/FR2330778B1/fr
Granted 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
    • C23C22/86—Regeneration of coating baths
    • 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)
  • Chemical Treatment Of Metals (AREA)
FR7529900A 1975-09-30 1975-09-30 Procede de regeneration de bains de bichromatage Granted FR2330778A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7529900A FR2330778A1 (fr) 1975-09-30 1975-09-30 Procede de regeneration de bains de bichromatage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7529900A FR2330778A1 (fr) 1975-09-30 1975-09-30 Procede de regeneration de bains de bichromatage

Publications (2)

Publication Number Publication Date
FR2330778A1 FR2330778A1 (fr) 1977-06-03
FR2330778B1 true FR2330778B1 (ko) 1978-03-17

Family

ID=9160645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7529900A Granted FR2330778A1 (fr) 1975-09-30 1975-09-30 Procede de regeneration de bains de bichromatage

Country Status (1)

Country Link
FR (1) FR2330778A1 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2114297A1 (en) * 1993-01-29 1994-07-30 Tadashi Nishino Method for dissolving sludge and recovering constituents therefrom
FR2721326B1 (fr) * 1994-06-20 1996-08-23 Yves Bardin Procédé et dispositif de régénération en continu d'un bain de traitement de surface, notamment de passivation.

Also Published As

Publication number Publication date
FR2330778A1 (fr) 1977-06-03

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Legal Events

Date Code Title Description
ST Notification of lapse