GB1046929A - Method of colouring parts made of titanium and titaium alloys in an electrolyte - Google Patents

Method of colouring parts made of titanium and titaium alloys in an electrolyte

Info

Publication number
GB1046929A
GB1046929A GB2384764A GB2384764A GB1046929A GB 1046929 A GB1046929 A GB 1046929A GB 2384764 A GB2384764 A GB 2384764A GB 2384764 A GB2384764 A GB 2384764A GB 1046929 A GB1046929 A GB 1046929A
Authority
GB
United Kingdom
Prior art keywords
titanium
electrolyte
aluminium
titaium
alloys
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
GB2384764A
Inventor
Jurgen Weigel
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.)
Hamburger Flugzeugbau GmbH
Original Assignee
Hamburger Flugzeugbau GmbH
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 Hamburger Flugzeugbau GmbH filed Critical Hamburger Flugzeugbau GmbH
Priority to GB2384764A priority Critical patent/GB1046929A/en
Publication of GB1046929A publication Critical patent/GB1046929A/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
    • C25D11/26—Anodisation of refractory metals 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)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

A method of colouring the surface of a titanium, or titanium alloy article comprises anodizing the article in an aqueous electrolyte containing from 0.1 to 25 wt per cent acid and or base, together with 0.1-8 wt per cent dissolved metal and using as cathode a metal other than titanium which is resistant to the electrolyte, e.g. aluminium, the applied voltage being in the range 5-80 volts. The dissolved metal may be aluminium and/or copper and/or zinc. In examples, acids used are sulphuric and oxalic acids. The temperature may range from 0-60 DEG C. Small articles may be anodized within an aluminium drum which serves as cathode. In this embodiment the electrolyte should contain hydrofluoric acid. The resulting colour of the surface is dependent upon the voltage chosen, and if the article comprises titanium alloy, upon the quantity of titanium present therein.
GB2384764A 1964-06-09 1964-06-09 Method of colouring parts made of titanium and titaium alloys in an electrolyte Expired GB1046929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2384764A GB1046929A (en) 1964-06-09 1964-06-09 Method of colouring parts made of titanium and titaium alloys in an electrolyte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2384764A GB1046929A (en) 1964-06-09 1964-06-09 Method of colouring parts made of titanium and titaium alloys in an electrolyte

Publications (1)

Publication Number Publication Date
GB1046929A true GB1046929A (en) 1966-10-26

Family

ID=10202274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2384764A Expired GB1046929A (en) 1964-06-09 1964-06-09 Method of colouring parts made of titanium and titaium alloys in an electrolyte

Country Status (1)

Country Link
GB (1) GB1046929A (en)

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