GB1081137A - Chromium articles - Google Patents

Chromium articles

Info

Publication number
GB1081137A
GB1081137A GB4036064A GB4036064A GB1081137A GB 1081137 A GB1081137 A GB 1081137A GB 4036064 A GB4036064 A GB 4036064A GB 4036064 A GB4036064 A GB 4036064A GB 1081137 A GB1081137 A GB 1081137A
Authority
GB
United Kingdom
Prior art keywords
chromium
article
treatment
heat
articles
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
GB4036064A
Inventor
Eric Adolph Brandes
James Abraham Whittaker
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.)
Fulmer Research Institute Ltd
Original Assignee
Fulmer Research Institute Ltd
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 Fulmer Research Institute Ltd filed Critical Fulmer Research Institute Ltd
Priority to GB4036064A priority Critical patent/GB1081137A/en
Publication of GB1081137A publication Critical patent/GB1081137A/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
    • C25D1/00—Electroforming
    • C25D1/20—Separation of the formed objects from the electrodes with no destruction of said electrodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

In a method of making a chromium article, chromium, a chromium base alloy or chromium and a refractory material, e.g. ceramic, are electrolytically deposited on to a suitable cathode to form the article and the eletro-deposited material is heated to a temperature of at least 1600 DEG C. e.g. for at least 4 hours in a reducing or inert atmosphere, e.g. hydrogen, which heat-treatment may effect removal of oxygen therefrom. The cathode may be formed of copper or copper alloy and may be dissolved with nitric acid prior to said heat-treatment. The article may be subjected to a mechanical finishing operation at a temperature above 250 DEG C.
GB4036064A 1964-10-02 1964-10-02 Chromium articles Expired GB1081137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4036064A GB1081137A (en) 1964-10-02 1964-10-02 Chromium articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4036064A GB1081137A (en) 1964-10-02 1964-10-02 Chromium articles

Publications (1)

Publication Number Publication Date
GB1081137A true GB1081137A (en) 1967-08-31

Family

ID=10414496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4036064A Expired GB1081137A (en) 1964-10-02 1964-10-02 Chromium articles

Country Status (1)

Country Link
GB (1) GB1081137A (en)

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