ES258049A1 - Procedimiento para la producciën de revestimientos de conversiën quimica sobre superficies de aluminio - Google Patents

Procedimiento para la producciën de revestimientos de conversiën quimica sobre superficies de aluminio

Info

Publication number
ES258049A1
ES258049A1 ES0258049A ES258049A ES258049A1 ES 258049 A1 ES258049 A1 ES 258049A1 ES 0258049 A ES0258049 A ES 0258049A ES 258049 A ES258049 A ES 258049A ES 258049 A1 ES258049 A1 ES 258049A1
Authority
ES
Spain
Prior art keywords
hexavalent chromium
acid
weight
ferricyanide
hydrofluoric acid
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
ES0258049A
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.)
Henkel Corp
Original Assignee
Amchem Products 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
Application filed by Amchem Products Inc filed Critical Amchem Products Inc
Publication of ES258049A1 publication Critical patent/ES258049A1/es
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

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)

Abstract

Procedimiento para la producción de revestimientos de conversión química sobre superficies de aluminio, caracterizado porque una sucesión de superficie de aluminio, la superficie se trata con una solución ácido acuosa que está esencialmente constituida por una compuesto de fluor y como heavaniente, componiendo la restructuración o reposición periódica del contenido de cromo hexavalente de la solución hasta el nivel deseado y la reposición del contenido de flúor por adición de fluoruro simple consistente en ácido hidrofluórico y álcaliy las armónicas siendo la cantidad de iluoruro clase de 0.4 a 2 partes oir cada parte de cromato.
ES0258049A 1959-11-19 1960-05-13 Procedimiento para la producciën de revestimientos de conversiën quimica sobre superficies de aluminio Expired ES258049A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US854005A US2988465A (en) 1959-11-19 1959-11-19 Method of producing chemical conversion coatings on aluminum surfaces

Publications (1)

Publication Number Publication Date
ES258049A1 true ES258049A1 (es) 1960-08-16

Family

ID=25317484

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0258049A Expired ES258049A1 (es) 1959-11-19 1960-05-13 Procedimiento para la producciën de revestimientos de conversiën quimica sobre superficies de aluminio

Country Status (8)

Country Link
US (1) US2988465A (es)
BE (1) BE596469A (es)
CH (1) CH429368A (es)
DE (1) DE1150256B (es)
ES (1) ES258049A1 (es)
FI (1) FI40763B (es)
GB (1) GB893771A (es)
NL (1) NL258036A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615740A (en) * 1970-02-02 1971-10-26 Pennwalt Corp Chromate conversion coating compositions containing prusside accelerator
CA1024866A (en) * 1973-04-18 1978-01-24 Yashuhiro Toyoda Colorless chromate coatings for aluminium surfaces
EP0487200B1 (en) * 1990-11-14 2000-06-21 Titeflex Corporation Fluoropolymer aluminium laminate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507956A (en) * 1947-11-01 1950-05-16 Lithographic Technical Foundat Process of coating aluminum
BE538540A (es) * 1954-08-05
US2796371A (en) * 1955-03-16 1957-06-18 Allied Res Products Inc Corrosion resistant protective coating on aluminum and aluminum alloys
AT202830B (de) * 1957-08-19 1959-04-10 Metallgesellschaft Ag Verfahren zur Aufbringung eines Überzuges auf Aluminiumoberflächen

Also Published As

Publication number Publication date
GB893771A (en) 1962-04-11
US2988465A (en) 1961-06-13
DE1150256B (de) 1963-06-12
NL258036A (es)
FI40763B (es) 1969-01-31
CH429368A (de) 1967-01-31
BE596469A (fr) 1961-02-15

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