GB763336A - Improvements in or relating to surface treatment of metals - Google Patents

Improvements in or relating to surface treatment of metals

Info

Publication number
GB763336A
GB763336A GB3113652A GB3113652A GB763336A GB 763336 A GB763336 A GB 763336A GB 3113652 A GB3113652 A GB 3113652A GB 3113652 A GB3113652 A GB 3113652A GB 763336 A GB763336 A GB 763336A
Authority
GB
United Kingdom
Prior art keywords
parts
metals
relating
surface treatment
aluminium
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
GB3113652A
Inventor
Arthur Charlesbury
John James Polling
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB3113652A priority Critical patent/GB763336A/en
Publication of GB763336A publication Critical patent/GB763336A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

A composition for etching metal surfaces, e.g. aluminium, tantalum or zirconium, comprises 15 parts hydrofluoric acid, 45 parts hydrochloric acid, 15 parts nitric acid and 25 parts water, all parts by volume. The surface is then anodized, (see Group XXXXVI), and in the case of aluminium, coated with a transparent film of gold by evaporation in vacuo. The surface is then varnished.
GB3113652A 1952-12-09 1952-12-09 Improvements in or relating to surface treatment of metals Expired GB763336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3113652A GB763336A (en) 1952-12-09 1952-12-09 Improvements in or relating to surface treatment of metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3113652A GB763336A (en) 1952-12-09 1952-12-09 Improvements in or relating to surface treatment of metals

Publications (1)

Publication Number Publication Date
GB763336A true GB763336A (en) 1956-12-12

Family

ID=10318550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3113652A Expired GB763336A (en) 1952-12-09 1952-12-09 Improvements in or relating to surface treatment of metals

Country Status (1)

Country Link
GB (1) GB763336A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941930A (en) * 1957-05-28 1960-06-21 Reynolds Metals Co Decorative aluminum surface
US3099609A (en) * 1961-09-11 1963-07-30 Katayose Kimiyoshi Method of electroplating aluminum or its alloy with porous hard chromium
US4495254A (en) * 1981-05-18 1985-01-22 Westinghouse Electric Corp. Protectively-coated gold-plated article of jewelry or wristwatch component
GB2143181A (en) * 1983-06-23 1985-02-06 Metalem Sa Improvements in or relating to decorated or ornamented articles
US4517217A (en) * 1980-09-09 1985-05-14 Westinghouse Electric Corp. Protective coating means for articles such as gold-plated jewelry and wristwatch components
US4533605A (en) * 1980-09-09 1985-08-06 Westinghouse Electric Corp. Article such as jewelry or a wristwatch component having composite multi-film protective coating

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941930A (en) * 1957-05-28 1960-06-21 Reynolds Metals Co Decorative aluminum surface
US3099609A (en) * 1961-09-11 1963-07-30 Katayose Kimiyoshi Method of electroplating aluminum or its alloy with porous hard chromium
US4517217A (en) * 1980-09-09 1985-05-14 Westinghouse Electric Corp. Protective coating means for articles such as gold-plated jewelry and wristwatch components
US4533605A (en) * 1980-09-09 1985-08-06 Westinghouse Electric Corp. Article such as jewelry or a wristwatch component having composite multi-film protective coating
US4495254A (en) * 1981-05-18 1985-01-22 Westinghouse Electric Corp. Protectively-coated gold-plated article of jewelry or wristwatch component
GB2143181A (en) * 1983-06-23 1985-02-06 Metalem Sa Improvements in or relating to decorated or ornamented articles

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