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WO1999002287A8 - Method of fluxless melting of magnesium - Google Patents

Method of fluxless melting of magnesium

Info

Publication number
WO1999002287A8
WO1999002287A8 PCT/NO1998/000200 NO9800200W WO9902287A8 WO 1999002287 A8 WO1999002287 A8 WO 1999002287A8 NO 9800200 W NO9800200 W NO 9800200W WO 9902287 A8 WO9902287 A8 WO 9902287A8
Authority
WO
WIPO (PCT)
Prior art keywords
magnesium
fluxless
melting
fluxless melting
alloy
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.)
Ceased
Application number
PCT/NO1998/000200
Other languages
French (fr)
Other versions
WO1999002287A1 (en
Inventor
Jan B Roenhaug
Stein Erik Berg
Haavard T Gjestland
Thomas Bergem Reistad
Oeystein Solli
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.)
Norsk Hydro ASA
Original Assignee
Norsk Hydro ASA
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 Norsk Hydro ASA filed Critical Norsk Hydro ASA
Priority to DE69805195T priority Critical patent/DE69805195D1/en
Priority to JP2000501854A priority patent/JP2001509543A/en
Priority to EP98939025A priority patent/EP1019211B1/en
Priority to AT98939025T priority patent/ATE216932T1/en
Priority to AU87534/98A priority patent/AU8753498A/en
Publication of WO1999002287A1 publication Critical patent/WO1999002287A1/en
Publication of WO1999002287A8 publication Critical patent/WO1999002287A8/en
Anticipated expiration legal-status Critical
Ceased 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/006—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with use of an inert protective material including the use of an inert gas
    • 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
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/20—Obtaining alkaline earth metals or magnesium
    • C22B26/22—Obtaining magnesium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • F27D2007/063—Special atmospheres, e.g. high pressure atmospheres

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Glass Compositions (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

Fluxless melting of magnesium (alloy) metal applying a gas mixture of dry air and SO2 as protection atmosphere is provided where a constant pre-set level of SO2 is maintained by means of two mass flowmeters where one of them is in control of the other.
PCT/NO1998/000200 1997-07-07 1998-07-03 Method of fluxless melting of magnesium Ceased WO1999002287A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE69805195T DE69805195D1 (en) 1997-07-07 1998-07-03 METHOD FOR MELAGON-FREE MELTING
JP2000501854A JP2001509543A (en) 1997-07-07 1998-07-03 Solvent-free melting of magnesium
EP98939025A EP1019211B1 (en) 1997-07-07 1998-07-03 Method of fluxless melting of magnesium
AT98939025T ATE216932T1 (en) 1997-07-07 1998-07-03 METHOD FOR THE SLACK-FREE MELTING OF MAGNESIUM
AU87534/98A AU8753498A (en) 1997-07-07 1998-07-03 Method of fluxless melting of magnesium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO973149A NO304893B1 (en) 1997-07-07 1997-07-07 Process for melting magnesium without flux and equipment for this
NO973149 1997-07-07

Publications (2)

Publication Number Publication Date
WO1999002287A1 WO1999002287A1 (en) 1999-01-21
WO1999002287A8 true WO1999002287A8 (en) 1999-04-15

Family

ID=19900908

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1998/000200 Ceased WO1999002287A1 (en) 1997-07-07 1998-07-03 Method of fluxless melting of magnesium

Country Status (7)

Country Link
EP (1) EP1019211B1 (en)
JP (1) JP2001509543A (en)
AT (1) ATE216932T1 (en)
AU (1) AU8753498A (en)
DE (1) DE69805195D1 (en)
NO (1) NO304893B1 (en)
WO (1) WO1999002287A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6521018B2 (en) 2000-02-07 2003-02-18 Air Products And Chemicals, Inc. Blanketing metals and alloys at elevated temperatures with gases having reduced global warming potential
US6398844B1 (en) * 2000-02-07 2002-06-04 Air Products And Chemicals, Inc. Blanketing molten nonferrous metals and alloys with gases having reduced global warming potential
ATE389483T1 (en) 2002-09-25 2008-04-15 Frech Oskar Gmbh & Co PROTECTIVE GAS DEVICE FOR DIE CASTING MACHINES
CN107289782B (en) * 2016-03-31 2019-05-07 中国科学院金属研究所 A multi-furnace combined melting and casting equipment and process for producing high-purity magnesium or magnesium alloys

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2018407A1 (en) * 1969-05-05 1971-02-25 Fruehling J Protective atmosphere for magnesium and magnesium alloys
BG33467A1 (en) * 1980-12-11 1983-03-15 Nikolov Method and machine for castind under presure
US4478270A (en) * 1981-04-01 1984-10-23 Interlake, Inc. Apparatus for casting low-density alloys
DE4129879A1 (en) * 1991-09-09 1993-03-11 Loi Ind Ofenanlagen METHOD FOR REPLACING THE ATMOSPHERES OF AN INDUSTRIAL STOVE
AUPN716195A0 (en) * 1995-12-14 1996-01-18 Australian Magnesium Corporation Pty Ltd Ingot mould system

Also Published As

Publication number Publication date
EP1019211A1 (en) 2000-07-19
NO973149L (en) 1999-01-08
ATE216932T1 (en) 2002-05-15
DE69805195D1 (en) 2002-06-06
NO304893B1 (en) 1999-03-01
EP1019211B1 (en) 2002-05-02
JP2001509543A (en) 2001-07-24
WO1999002287A1 (en) 1999-01-21
AU8753498A (en) 1999-02-08
NO973149D0 (en) 1997-07-07

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