GB953344A - Ornamenting an aluminium metal - Google Patents

Ornamenting an aluminium metal

Info

Publication number
GB953344A
GB953344A GB2160660A GB2160660A GB953344A GB 953344 A GB953344 A GB 953344A GB 2160660 A GB2160660 A GB 2160660A GB 2160660 A GB2160660 A GB 2160660A GB 953344 A GB953344 A GB 953344A
Authority
GB
United Kingdom
Prior art keywords
max
pict
article
crystal
remainder
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
GB2160660A
Inventor
Nicholas Mostovych
Walter A Mitchell
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.)
Reynolds Metals Co
Original Assignee
Reynolds Metals Co
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 Reynolds Metals Co filed Critical Reynolds Metals Co
Priority to FR830559A priority Critical patent/FR1264139A/en
Priority to GB2160660A priority patent/GB953344A/en
Publication of GB953344A publication Critical patent/GB953344A/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
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/243—Chemical after-treatment using organic dyestuffs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/22—Removing surface-material, e.g. by engraving, by etching
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • 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
    • C25D11/18—After-treatment, e.g. pore-sealing
    • 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
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/246—Chemical after-treatment for sealing layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Cookers (AREA)
  • Laminated Bodies (AREA)

Abstract

<PICT:0953344/C3/1> <PICT:0953344/C3/2> <PICT:0953344/C3/3> <PICT:0953344/C3/4> Decorative or ornamental aluminium metal or alloy articles, such as sheets, strips, bars, rods or tubes, are produced by adjusting the metal grains to coarse sizes so that a surface of each article has crystal faces of macroscopic sizes, e.g. 0.01-3 cm. or more, etching the surface in a solution of, for example, hydrochloric, nitric (e.g. each 20-40% by volume) and optionally hydrofluoric (e.g. 1-3%) acids for 1-10 minutes to produce a mild etch, Fig. 1, or up to one hour or more to produce a severe etch, Fig. 2, thus exposing the crystal faces and their boundaries, anodically forming a transparent oxide film of aluminium on the crystal faces with an electrolytic anodizing bath of preferably 15% sulphuric acid at 70 DEG F. using D.C. of 12 amps./sq. ft. of the surface, preferably dyeing at least an area of the film with any colour, e.g. ferric ammonium oxalate for gold colour, thus creating shades and hues differing from crystal face to crystal face, and sealing the film, eg. in boiling water or steam to render it non-porous. The crystal grains are adjusted to the required sizes by deforming the article, such as by directional cold rolling to produce final result as in Fig. 4, or bending, pressing, drawing or stretching, to a reduction of 1-15% in thickness, and annealing, e.g. in a furnace at 600-1150 DEG F. for 10 minutes to 3 hours. An example of a ribbed article with the ribs receiving 8% reduction is shown in Fig. 6. The article may be solution heat-treated or work-hardened after annealing and before anodizing to impart strength. Specified alloys include the following:-(a) 0.2-0.4% Mn, 0.9-1.2% Mg, max. 0.05% Cu, max. 0.15% Fe, max. 0.1% Si, remainder Al; (b) 0.35-0.55% Si, max. 0.32% Fe, max. 0.1% Mn, 0.55-0.75% Mg, 0.01% Cr, remainder Al; (c) 0.3% Mn, 1.0% Mg, max. 0.1% Si, max. 0.15% Fe, max. 0.05% Cu, remainder Al; (d) max. 0.06% Si, max. 0.06% Fe, max. 0.005% Ti, at least 99.87% Al.
GB2160660A 1960-06-20 1960-06-20 Ornamenting an aluminium metal Expired GB953344A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR830559A FR1264139A (en) 1960-06-20 1960-06-20 Improvements to ornamental and decorative articles and objects in aluminum or aluminum alloys and to the processes for their production
GB2160660A GB953344A (en) 1960-06-20 1960-06-20 Ornamenting an aluminium metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2160660A GB953344A (en) 1960-06-20 1960-06-20 Ornamenting an aluminium metal

Publications (1)

Publication Number Publication Date
GB953344A true GB953344A (en) 1964-03-25

Family

ID=10165755

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2160660A Expired GB953344A (en) 1960-06-20 1960-06-20 Ornamenting an aluminium metal

Country Status (1)

Country Link
GB (1) GB953344A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173212A (en) * 1985-03-01 1986-10-08 Citizen Watch Co Ltd External member for a watch
WO2010045174A1 (en) * 2008-10-14 2010-04-22 Alcoa Inc. Enhanced metal wicking surface
US7864594B2 (en) 2007-11-06 2011-01-04 Macronix International Co., Ltd. Memory apparatus and method thereof for operating memory
US20140166490A1 (en) * 2012-12-19 2014-06-19 Apple, Inc. Cosmetic and protective metal surface treatments

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173212A (en) * 1985-03-01 1986-10-08 Citizen Watch Co Ltd External member for a watch
GB2173212B (en) * 1985-03-01 1989-06-21 Citizen Watch Co Ltd External member for a watch
US7864594B2 (en) 2007-11-06 2011-01-04 Macronix International Co., Ltd. Memory apparatus and method thereof for operating memory
WO2010045174A1 (en) * 2008-10-14 2010-04-22 Alcoa Inc. Enhanced metal wicking surface
US20140166490A1 (en) * 2012-12-19 2014-06-19 Apple, Inc. Cosmetic and protective metal surface treatments
US9644281B2 (en) * 2012-12-19 2017-05-09 Apple Inc. Cosmetic and protective metal surface treatments

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