GB1439933A - Sulphuric acid anodising processes - Google Patents

Sulphuric acid anodising processes

Info

Publication number
GB1439933A
GB1439933A GB2409472A GB2409472A GB1439933A GB 1439933 A GB1439933 A GB 1439933A GB 2409472 A GB2409472 A GB 2409472A GB 2409472 A GB2409472 A GB 2409472A GB 1439933 A GB1439933 A GB 1439933A
Authority
GB
United Kingdom
Prior art keywords
anodizing
litre
saturation
ion
sulphuric 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
GB2409472A
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.)
Kape J M
Original Assignee
Kape J M
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 Kape J M filed Critical Kape J M
Priority to GB2409472A priority Critical patent/GB1439933A/en
Publication of GB1439933A publication Critical patent/GB1439933A/en
Expired legal-status Critical Current

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
    • 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
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/14—Producing integrally coloured layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Glass Compositions (AREA)

Abstract

1439933 Anodizing aluminium alloys J M KAPE 15 Aug 1973 [23 May 1972] 24094/72 Heading C7B Aluminium alloys are anodized using A.C. current at a temperature of -5‹C to 30‹C using as electrolyte an aqueous solution comprising 4-40 wt per cent of sulphuric acid and a substance which will react with sulphur formed during anodizing; the substance being ferric salt to provide 0.1 gm ion/litre to saturation; nickel, cobalt, vanadium, chromium, manganese or cerium sulphate to provide the metal in a proportion of 0.1 gm ion/litre to saturation; or a chromate, vanadate, molybdate or permanganate to provide those ions in a range 0.1 gm ion/litre to saturation. Various examples of suitable sulphur combining substances are given. The anodizing may be carried out as a batch or continuous process. The alloys may be etched in NaOH before anodizing; and the coatings may be sealed in Ni acetate or itaconate or in boiling water.
GB2409472A 1972-05-23 1972-05-23 Sulphuric acid anodising processes Expired GB1439933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2409472A GB1439933A (en) 1972-05-23 1972-05-23 Sulphuric acid anodising processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2409472A GB1439933A (en) 1972-05-23 1972-05-23 Sulphuric acid anodising processes

Publications (1)

Publication Number Publication Date
GB1439933A true GB1439933A (en) 1976-06-16

Family

ID=10206291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2409472A Expired GB1439933A (en) 1972-05-23 1972-05-23 Sulphuric acid anodising processes

Country Status (1)

Country Link
GB (1) GB1439933A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4601796A (en) * 1984-09-19 1986-07-22 Aluminum Company Of America High reflectance semi-specular anodized aluminum alloy product and method of forming same
WO2002029134A2 (en) * 2000-10-04 2002-04-11 The Johns Hopkins University Method for inhibiting corrosion of alloys employing electrochemistry
EP2955250A1 (en) * 2014-06-13 2015-12-16 Innovent e.V. Method for coating a substrate
EP2966196A3 (en) * 2014-06-13 2016-03-09 Innovent e.V. Method for coating a substrate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4601796A (en) * 1984-09-19 1986-07-22 Aluminum Company Of America High reflectance semi-specular anodized aluminum alloy product and method of forming same
WO2002029134A2 (en) * 2000-10-04 2002-04-11 The Johns Hopkins University Method for inhibiting corrosion of alloys employing electrochemistry
WO2002029134A3 (en) * 2000-10-04 2003-11-06 Univ Johns Hopkins Method for inhibiting corrosion of alloys employing electrochemistry
EP2955250A1 (en) * 2014-06-13 2015-12-16 Innovent e.V. Method for coating a substrate
EP2966196A3 (en) * 2014-06-13 2016-03-09 Innovent e.V. Method for coating a substrate

Similar Documents

Publication Publication Date Title
Kofstad Oxidation of metals: determination of activation energies
GB391903A (en) Improvements in or relating to the surface treatment of aluminium or aluminium alloys
GB495190A (en) An improved electrolytic method of coating surfaces of iron or steel
GB850576A (en) Improvements in or relating to the electrolytic treatment of aluminium
GB1439933A (en) Sulphuric acid anodising processes
GB1402184A (en) Anodic treatment of chromium-containing alloys
GB534471A (en) Improvements in or relating to the production of protective coatings on magnesium and magnesium alloys
GB1022927A (en) Improvements in and relating to coloring aluminium articles by electrolytic depositions of colored compounds
GB954033A (en) Improvements in or relating to electrodepositing chromium
US3365377A (en) Method of sealing anodized aluminum
IE33554B1 (en) Process for colouring anodised aluminium by electrolytic deposition
Kape Anodizing Aluminum Alloys in Sulfuric Acid
GB1185346A (en) Improvements relating to Anodic Oxidation of Aluminium and Aluminium Alloys.
GB498626A (en) Anodic treatment of magnesium and its alloys
GB1140052A (en) Treatment of aluminium and aluminium alloy powders
GB1406568A (en) Electrolytic surface preparation process for recoating of used coated metallic electrodes
US3824160A (en) Manufacture of copper dichromate and related materials
Meites Titrations with vanadium (II) solutions for elementary quantitative analysis
GB810231A (en) Improvements in or relating to methods of sealing anodic aluminium oxide coatings
GB515648A (en) Improvements in or relating to a method of producing coatings on magnesium or its alloys
GB1281941A (en) Electrolyte for use in anodizing aluminium or aluminium alloy to form a coloured oxide film and a method for anodizing said metal
GB815756A (en) Method for coating surfaces and, particularly, metal surfaces
GB1153668A (en) A Metal Treating Process for Coating the Surfaces of Tortuous Aluminium Objects
GB353415A (en) Improvements in or relating to preventing corrosion of metallic surfaces
JPS5613497A (en) Electrolytic coloring method for aluminum group metal

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee