EP0156591A3 - Anodizing process for producing highly reflective aluminum materials - Google Patents

Anodizing process for producing highly reflective aluminum materials Download PDF

Info

Publication number
EP0156591A3
EP0156591A3 EP85301754A EP85301754A EP0156591A3 EP 0156591 A3 EP0156591 A3 EP 0156591A3 EP 85301754 A EP85301754 A EP 85301754A EP 85301754 A EP85301754 A EP 85301754A EP 0156591 A3 EP0156591 A3 EP 0156591A3
Authority
EP
European Patent Office
Prior art keywords
highly reflective
anodizing
aluminum materials
anodizing process
producing highly
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.)
Withdrawn
Application number
EP85301754A
Other languages
German (de)
French (fr)
Other versions
EP0156591A2 (en
Inventor
John H. Powers
Hang T Dang
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.)
Howmet Aerospace Inc
Original Assignee
Aluminum Company of America
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
Priority claimed from US06/590,323 external-priority patent/US4483750A/en
Application filed by Aluminum Company of America filed Critical Aluminum Company of America
Publication of EP0156591A2 publication Critical patent/EP0156591A2/en
Publication of EP0156591A3 publication Critical patent/EP0156591A3/en
Withdrawn legal-status Critical Current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

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)
  • Optical Elements Other Than Lenses (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

An improved process is provided for the production of aluminum reflective material having a high total reflectance value. The process comprises controlling the anodizing con­ ditions of an aluminum alloy by immersing the alloy in a DC anodizing bath containing at least 26 wt.% sulfuric acid and the anodizing sheet at a current density of at least 194 A/m² at a temperature of at least 15°C.
EP85301754A 1984-03-16 1985-03-14 Anodizing process for producing highly reflective aluminum materials Withdrawn EP0156591A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/590,323 US4483750A (en) 1984-03-16 1984-03-16 Process for anodizing highly reflective aluminum materials
US590323 1984-03-16
US65191284A 1984-09-19 1984-09-19
US651912 1984-09-19

Publications (2)

Publication Number Publication Date
EP0156591A2 EP0156591A2 (en) 1985-10-02
EP0156591A3 true EP0156591A3 (en) 1985-12-04

Family

ID=27080817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85301754A Withdrawn EP0156591A3 (en) 1984-03-16 1985-03-14 Anodizing process for producing highly reflective aluminum materials

Country Status (3)

Country Link
EP (1) EP0156591A3 (en)
AU (1) AU3908585A (en)
ES (1) ES8608592A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11421318B2 (en) * 2018-05-04 2022-08-23 Applied Materials, Inc. Methods and apparatus for high reflectivity aluminum layers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225399A (en) * 1979-04-25 1980-09-30 Setsuo Tomita High speed aluminum anodizing
JPS56142896A (en) * 1980-04-09 1981-11-07 Matsushita Electric Ind Co Ltd Preparation of reflective type screen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225399A (en) * 1979-04-25 1980-09-30 Setsuo Tomita High speed aluminum anodizing
JPS56142896A (en) * 1980-04-09 1981-11-07 Matsushita Electric Ind Co Ltd Preparation of reflective type screen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 96, no. 10, March 1982, page 520, no. 76524b, Columbus, Ohio, US; & JP - A - 81 142 896 (MATSUSITA ELECTRIC INDUSTRIAL CO., LTD.) 07-11-1981 *
S. WERNICK et al.: "The surface treatment and finishing of aluminium and its alloys", 4th edition, vol. 2, 1972, pages 848-858, Robert Draper Ltd., Teddington, GB. *

Also Published As

Publication number Publication date
AU3908585A (en) 1985-09-19
EP0156591A2 (en) 1985-10-02
ES541335A0 (en) 1986-06-16
ES8608592A1 (en) 1986-06-16

Similar Documents

Publication Publication Date Title
EP0405624A3 (en) Method for anodizing aluminium
AU559228B2 (en) Anodizing aluminium
AU583809B2 (en) Method of manufacturing hollow sheet metal containers and containers produced thereby
ZA864668B (en) Electrolysis of halide-containing solutions with amorphous metal alloys
ES8701242A1 (en) Anodic aluminium oxide film and method of forming it.
AU587095B2 (en) Formation of intermetallic and intermetallic-type precursor alloys for subsequent mechanical alloying applications
EP0406620B1 (en) Process for coloring titanium and its alloys
AU565005B2 (en) Zinc and zinc alloy electroplating process
AU4601685A (en) A method of producing a biaxially oriented container
EP0156591A3 (en) Anodizing process for producing highly reflective aluminum materials
AU2846989A (en) Electrolytic cell for the production of a metal
PT77030A (en) Process for fabricating a continuous cast aluminum alloy strip suitable for the production of drawn wall-ironed articles and aluminum alloy sheet thus obtained
AU2515688A (en) Method for processing cold-rolled stainless-steel sheet and strip
GB2155013B (en) New method for producing glyoxylylspermidine and the use thereof for the production of 15-deoxy spergualin-related compounds
IE810825L (en) Electrolytically colouring aluminium and alloys thereof.
HUT40397A (en) Process for production of active on the surface derivatives of esthers and preparatives containing thereof preventing oxidation of foodstuffs
Powers et al. Anodizing Process for Producing Highly Reflective Aluminum Materials
AU5580786A (en) Method for the electrochemical oxidation of sulphuric acid chromium iii solutuons into chromium vi solutions
EP0356802A3 (en) Electrochemical process for the production of chromic acid
SU1152931A2 (en) Method of obtaining titanium dioxide
Davies et al. Anodic aluminium oxide film and method of forming it
JPS55154599A (en) Plating method for aluminum or its alloy
JPS6479400A (en) Coated aluminum material having superior feathering resistance
Raub et al. Palladium--Nickel Electroplating. Effects of Solution Parameters on Alloy Properties
Kukoz et al. Film Formation on and Roughening of Titanium Alloy Surfaces During Electrochemical Machining

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE DE FR GB

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860805

RIN1 Information on inventor provided before grant (corrected)

Inventor name: POWERS, JOHN H.

Inventor name: DANG, HANG T