GB739652A - Method of removing gaseous and solid inclusions from aluminium - Google Patents

Method of removing gaseous and solid inclusions from aluminium

Info

Publication number
GB739652A
GB739652A GB6138/54A GB613854A GB739652A GB 739652 A GB739652 A GB 739652A GB 6138/54 A GB6138/54 A GB 6138/54A GB 613854 A GB613854 A GB 613854A GB 739652 A GB739652 A GB 739652A
Authority
GB
United Kingdom
Prior art keywords
aluminium
solid inclusions
treatment
removing gaseous
vacuum treatment
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
GB6138/54A
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
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 Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Publication of GB739652A publication Critical patent/GB739652A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/068—Obtaining aluminium refining handling in vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Molten aluminium is subjected to vacuum treatment, to remove gaseous and solid inclusions, immediately after its production by electrolysis. The treatment may be for about 1 hour and inert gases, e.g. nitrogen, may be passed through the molten metal. Salt treatment can be carried out before the vacuum treatment and the aluminium can be cooled to casting temperature in the vacuum treatment furnace.
GB6138/54A 1953-04-13 1954-03-02 Method of removing gaseous and solid inclusions from aluminium Expired GB739652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE739652X 1953-04-13

Publications (1)

Publication Number Publication Date
GB739652A true GB739652A (en) 1955-11-02

Family

ID=6643092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6138/54A Expired GB739652A (en) 1953-04-13 1954-03-02 Method of removing gaseous and solid inclusions from aluminium

Country Status (1)

Country Link
GB (1) GB739652A (en)

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