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 aluminioInfo
- 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
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.
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)
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)
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 |
-
0
- NL NL258036D patent/NL258036A/xx unknown
-
1959
- 1959-11-19 US US854005A patent/US2988465A/en not_active Expired - Lifetime
-
1960
- 1960-05-13 ES ES0258049A patent/ES258049A1/es not_active Expired
- 1960-10-17 GB GB35537/60A patent/GB893771A/en not_active Expired
- 1960-10-26 CH CH1203660A patent/CH429368A/de unknown
- 1960-10-27 BE BE596469A patent/BE596469A/fr unknown
- 1960-10-31 FI FI1786/60A patent/FI40763B/fi active
- 1960-11-18 DE DEA36058A patent/DE1150256B/de active Pending
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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