FR2382512A2 - Procede de phosphatation filmogene de surfaces metalliques - Google Patents

Procede de phosphatation filmogene de surfaces metalliques

Info

Publication number
FR2382512A2
FR2382512A2 FR7705908A FR7705908A FR2382512A2 FR 2382512 A2 FR2382512 A2 FR 2382512A2 FR 7705908 A FR7705908 A FR 7705908A FR 7705908 A FR7705908 A FR 7705908A FR 2382512 A2 FR2382512 A2 FR 2382512A2
Authority
FR
France
Prior art keywords
zinc
soln
reducing agent
acid
film
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.)
Withdrawn
Application number
FR7705908A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7705908A priority Critical patent/FR2382512A2/fr
Publication of FR2382512A2 publication Critical patent/FR2382512A2/fr
Withdrawn legal-status Critical Current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
    • C23C22/24—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
    • C23C22/33—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 containing also phosphates

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)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

On applique sur une surface métallique, en une seule opération, une solution aqueuse renfermant : - des phosphates primaires de fer, zinc ou manganèse formés dans l'acide phosphorique, l'acide borophosphorique ou un ester de l'acide phosphorique; - un agent reducteur contenant des groupes hydroxyle, aldéhyde, cetone ou amine, et étant soit directement dissous dans l'acide phosphorique ou son dérivé, soit combiné à cet acide ou à son dérivé par phosphorisation; - de l'acide chromique ou des sels de cet acide, introduits pour oxyder l'agent réducteur précité, de telle sorte que le chrome hexavalent soit totalement ou partiellement réduit en chrome trivalent, ladite surface étant ensuite séchée. En vue de l'application ultérieure de peinture sur la surface ainsi traitée, on incorpore dans la solution aqueuse de traitement des résines en solution, émulsion ou dispersion aqueuse, sélectionnées parmi celles qui sont stables au pH acide de ladite solution de traitement, sans coaguler ni former de précipités. De cette façon, la préparation des surfaces métalliques est extraordinairement simplifiée car les étapes de phosphatation, de rinçage et de passivation sont en quelque sorte éliminées, se trouvant inclues dans l'application de la première couche de peinture.
FR7705908A 1977-03-01 1977-03-01 Procede de phosphatation filmogene de surfaces metalliques Withdrawn FR2382512A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7705908A FR2382512A2 (fr) 1977-03-01 1977-03-01 Procede de phosphatation filmogene de surfaces metalliques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7705908A FR2382512A2 (fr) 1977-03-01 1977-03-01 Procede de phosphatation filmogene de surfaces metalliques

Publications (1)

Publication Number Publication Date
FR2382512A2 true FR2382512A2 (fr) 1978-09-29

Family

ID=9187379

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7705908A Withdrawn FR2382512A2 (fr) 1977-03-01 1977-03-01 Procede de phosphatation filmogene de surfaces metalliques

Country Status (1)

Country Link
FR (1) FR2382512A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1292808A (fr) * 1960-06-23 1962-05-04 Yawata Iron & Steel Co Procédé pour le traitement de surface de tôles galvanisées
FR1369635A (fr) * 1962-09-14 1964-08-14 Parker Ste Continentale Procédé et solution pour le revêtement de surfaces métalliques
US4006041A (en) * 1973-10-22 1977-02-01 Juan Brugarolas Fabregas One step film-forming phosphatization of metallic surfaces and composition for effecting same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1292808A (fr) * 1960-06-23 1962-05-04 Yawata Iron & Steel Co Procédé pour le traitement de surface de tôles galvanisées
FR1369635A (fr) * 1962-09-14 1964-08-14 Parker Ste Continentale Procédé et solution pour le revêtement de surfaces métalliques
US4006041A (en) * 1973-10-22 1977-02-01 Juan Brugarolas Fabregas One step film-forming phosphatization of metallic surfaces and composition for effecting same

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Legal Events

Date Code Title Description
RE Withdrawal of published application