NL131875C - - Google Patents

Info

Publication number
NL131875C
NL131875C NL131875DA NL131875C NL 131875 C NL131875 C NL 131875C NL 131875D A NL131875D A NL 131875DA NL 131875 C NL131875 C NL 131875C
Authority
NL
Netherlands
Prior art keywords
strip
cell
electrolyte
anodizing
cathode
Prior art date
Application number
Inventor
W Cooke
D Bury
P Smits
J Cote
Original Assignee
Aluminium Lab Ltd
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.)
Publication date
Application granted granted Critical
Publication of NL131875C publication Critical patent/NL131875C/xx
Priority claimed from US342450A external-priority patent/US3359189A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/005—Apparatus specially adapted for electrolytic conversion coating
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
    • C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/10—Agitating of electrolytes; Moving of racks
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/004—Sealing devices

Abstract

An aluminium rod, wire or strip 12 is continuously anodized to produce a porous oxide film thereon by successively moving it through an electrolytic cleaning cell 10 and anodizing cell 11, wherein there is maintained in contact with the electrolyte an anode for cell 10, e.g. consisting of upper and lower lead anodes 14, 15, and a cathode for cell 11, e.g. consisting of upper stainless steel cathode 18 and preferably a lower graphite electrode 19, the cleaning and anodizing cells being in open communication with one another through a connecting zone so dimensioned that leakage current is less than a quarter of the total current, the electrolyte being maintained in turbulent flow lengthwise of the moving aluminium e.g. by re-circulating the electrolyte collected from <PICT:1087256/C6-C7/1> pipes 51, 52 at the strip-inlet end of the anodizing cell to the strip-outlet end through pipes 67, 68 using pump 117, and D.C. 135 being passed between the anodes and (one or both) cathodes through the electrolyte and strip 12 at a current density of at least 100 A.S.F. of aluminium surface exposed in the anodizing cell 11. The electrolyte in the anodizing cell may be separated into two parts by the strip (as shown), one part contacting the cathode 18 and the other part contacting an anode 19 (switch contact 139) whereby oxide film is formed on one side only of the strip. Alternatively both parts may contact cathodes (switch contact 143), preferably the potential of the two cathodes 18, 19 being at different values (switch contact 144 connecting cathode 19 through a variable resistor 145) whereby oxide films of different thickness are formed on the two sides of the strip.
NL131875D 1964-02-04 NL131875C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US342450A US3359189A (en) 1964-02-04 1964-02-04 Continuous anodizing process and apparatus
US390367A US3471375A (en) 1964-02-04 1964-08-18 Process and apparatus for continuous anodic treatment

Publications (1)

Publication Number Publication Date
NL131875C true NL131875C (en) 1900-01-01

Family

ID=26993013

Family Applications (2)

Application Number Title Priority Date Filing Date
NL131875D NL131875C (en) 1964-02-04
NL6501412A NL6501412A (en) 1964-02-04 1965-02-04

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL6501412A NL6501412A (en) 1964-02-04 1965-02-04

Country Status (8)

Country Link
US (1) US3471375A (en)
BE (1) BE659262A (en)
DE (1) DE1496714B2 (en)
FR (1) FR1424644A (en)
GB (1) GB1087256A (en)
NL (2) NL6501412A (en)
NO (1) NO116108B (en)
SE (1) SE326353B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1621115C3 (en) * 1967-10-17 1981-06-25 Metalloxyd GmbH, 5000 Köln Process for the production of an aluminum support for lithographic printing plates
US3873438A (en) * 1971-09-08 1975-03-25 Engelhard Min & Chem Electrolytic cell assembly including bipolar concentric electrodes
GB1439127A (en) * 1972-06-08 1976-06-09 Alcan Res & Dev Production of lithographic plates
US3927460A (en) * 1972-08-07 1975-12-23 Kawasaki Steel Co Pretreating process for vitreous enamelling
US3920525A (en) * 1973-05-18 1975-11-18 Fromson H A Process for continuously anodizing aluminum
US3865700A (en) * 1973-05-18 1975-02-11 Fromson H A Process and apparatus for continuously anodizing aluminum
US4248674A (en) * 1979-09-20 1981-02-03 Leyh Henry W Anodizing method and apparatus
US4507190A (en) * 1982-09-28 1985-03-26 United States Steel Corporation Horizontal-pass electrotreating cell
FR2542766B1 (en) * 1983-03-16 1987-07-03 Cegedur METHOD AND DEVICE FOR ELECTROCHEMICAL TREATMENT OF THE SURFACE OF METALLIC PRODUCTS OF ELONGATE FORM
AU568081B2 (en) * 1983-06-13 1987-12-17 Hoechst A.G. Method and plants for the continuous unilateral anodic oxidation of aluminium bands and utilization thereof to make offset printing plates
DE3401063A1 (en) * 1984-01-13 1985-07-25 USS Engineers and Consultants, Inc., Pittsburgh, Pa. Electrical treatment cell
CA1216822A (en) * 1984-01-20 1987-01-20 Issa J. Kharouf Electrotreating cell
SE469267B (en) * 1991-07-01 1993-06-14 Candor Sweden Ab Surface treatment device, whereby a medium under pressure is aimed at a continuous material web in a cavity
DE102018212128A1 (en) * 2018-07-20 2020-01-23 Audi Ag Deionizer, cooler, and method for deionizing a liquid

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1483722A (en) * 1922-06-13 1924-02-12 Charles Page Perin Art of making electrolytic metal and apparatus therefor
US1768358A (en) * 1925-05-21 1930-06-24 Florence M Harrison Electrolytic process and apparatus
US2267146A (en) * 1934-07-30 1941-12-23 Sharon Steel Corp Apparatus for electrically pickling and cleaning stainless steel and other metals
US2165326A (en) * 1934-10-30 1939-07-11 Hanson Van Winkle Munning Co Electrolytic treatment of ferrous metals
US2307928A (en) * 1939-02-24 1943-01-12 Hanson Van Winkle Munning Co Process and apparatus for cleaning metal
FR985497A (en) * 1943-11-09 1951-07-19 Alais & Froges & Camarque Cie Process for the continuous electrolytic oxidation of metal wires, bands and the like
US2930739A (en) * 1956-06-28 1960-03-29 Burnham John Method and apparatus for forming valve metal foil
AT222453B (en) * 1957-08-12 1962-07-25 Alfred James Lloyd Method and device for preferably continuous one-sided anodization of metal foils or strips
US2974097A (en) * 1957-11-12 1961-03-07 Reynolds Metals Co Electrolytic means for treating metal
US2989445A (en) * 1958-01-03 1961-06-20 Lloyd Metal Mfg Company Ltd Continuous electrolytic surfacing of metal membranes
US3038850A (en) * 1958-03-17 1962-06-12 Olin Mathieson Aluminum anodizing apparatus
US3079308A (en) * 1958-10-07 1963-02-26 Reynolds Metals Co Process of anodizing

Also Published As

Publication number Publication date
DE1496714A1 (en) 1970-10-08
GB1087256A (en) 1967-10-18
FR1424644A (en) 1966-01-14
BE659262A (en) 1965-08-04
NO116108B (en) 1969-01-27
NL6501412A (en) 1965-08-05
US3471375A (en) 1969-10-07
DE1496714B2 (en) 1971-11-11
SE326353B (en) 1970-07-20

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