GB1533420A - Melting of aluminium and aluminium alloys - Google Patents

Melting of aluminium and aluminium alloys

Info

Publication number
GB1533420A
GB1533420A GB3745176A GB3745176A GB1533420A GB 1533420 A GB1533420 A GB 1533420A GB 3745176 A GB3745176 A GB 3745176A GB 3745176 A GB3745176 A GB 3745176A GB 1533420 A GB1533420 A GB 1533420A
Authority
GB
United Kingdom
Prior art keywords
aluminium
gas
melting
induction loop
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
GB3745176A
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.)
Electricity Council
Original Assignee
Electricity Council
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 Electricity Council filed Critical Electricity Council
Priority to GB3745176A priority Critical patent/GB1533420A/en
Publication of GB1533420A publication Critical patent/GB1533420A/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
    • C22B21/0084—Obtaining aluminium melting and handling molten aluminium

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)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

1533420 Melting Al in induction loop furnaces ELECTRICITY COUNCIL 25 Aug 1977 [9 Sept 1976] 37451/76 Heading C7D Hydrogen gas is introduced into molten Al (or alloy) in a channel induction furnace before switchoff so that H 2 gas bubbles form in the solidifying melt. This is stated to prevent contraction cracking in the induction loop, whereby electric opencircuits are avoided. H2 gas may be introduced via a porous plug, or the H2 generated in situ from water (from e.g. Na 4 B 2 O 7 . 10H 2 O), steam or a hydrocarbon. N2 or other inert gas may be introduced on remelting to displace the H2.
GB3745176A 1977-08-25 1977-08-25 Melting of aluminium and aluminium alloys Expired GB1533420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3745176A GB1533420A (en) 1977-08-25 1977-08-25 Melting of aluminium and aluminium alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3745176A GB1533420A (en) 1977-08-25 1977-08-25 Melting of aluminium and aluminium alloys

Publications (1)

Publication Number Publication Date
GB1533420A true GB1533420A (en) 1978-11-22

Family

ID=10396580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3745176A Expired GB1533420A (en) 1977-08-25 1977-08-25 Melting of aluminium and aluminium alloys

Country Status (1)

Country Link
GB (1) GB1533420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571258A (en) * 1983-05-26 1986-02-18 Alcan International Limited Recovery of aluminium scrap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571258A (en) * 1983-05-26 1986-02-18 Alcan International Limited Recovery of aluminium scrap

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee