GB2286829A - Methods for producing high purity magnesium alloys - Google Patents

Methods for producing high purity magnesium alloys

Info

Publication number
GB2286829A
GB2286829A GB9508097A GB9508097A GB2286829A GB 2286829 A GB2286829 A GB 2286829A GB 9508097 A GB9508097 A GB 9508097A GB 9508097 A GB9508097 A GB 9508097A GB 2286829 A GB2286829 A GB 2286829A
Authority
GB
United Kingdom
Prior art keywords
molten
magnesium
alloying
melt
rare earth
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.)
Granted
Application number
GB9508097A
Other versions
GB2286829B (en
GB9508097D0 (en
Inventor
William G Green
Harvey L King
Vladimir Petrovich
James E Hillis
William E Mercer
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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
Priority claimed from US07/964,322 external-priority patent/US5248477A/en
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB9508097D0 publication Critical patent/GB9508097D0/en
Publication of GB2286829A publication Critical patent/GB2286829A/en
Application granted granted Critical
Publication of GB2286829B publication Critical patent/GB2286829B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting

Abstract

A method for producing a high purity magnesium alloy is disclosed in which the alloying components are introduced in the molten state into molten magnesium. In accordance with the process of the invention, a predetermined amount of primary magnesium is heated and melted in a crucible. Predetermined amounts of desired alloying metals are selected and heated to their melting temperature in a separate crucible. The molten alloying metals are then introduced into the molten magnesium to substantially instantaneously alloy with the molten magnesium in a reaction raising the temperature of the melt. Elemental manganese when first alloyed with other alloying metals prior to its addition to the molten magnesium is found to consistently be more effective in reducing the iron impurity level of the melt to a level below 50 ppm. The introduction of a molten alloy of manganese and one or more rare earth metals into the molten magnesium, reduces a settling out of the rare earth metal from the melt and increases the alloying efficiency for the rare earth metal to greater than 80 %. The efficiency of the process of the invention is substantially increased, the consumption of time and energy is decreased, and the production of magnesium chloride slag and gaseous HCI is avoided.
GB9508097A 1992-10-21 1993-06-30 Methods for producing high purity magnesium alloys Expired - Fee Related GB2286829B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/964,322 US5248477A (en) 1991-09-12 1992-10-21 Methods for producing high purity magnesium alloys
PCT/US1993/006180 WO1994009168A1 (en) 1992-10-21 1993-06-30 Methods for producing high purity magnesium alloys

Publications (3)

Publication Number Publication Date
GB9508097D0 GB9508097D0 (en) 1995-06-21
GB2286829A true GB2286829A (en) 1995-08-30
GB2286829B GB2286829B (en) 1996-11-13

Family

ID=25508408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9508097A Expired - Fee Related GB2286829B (en) 1992-10-21 1993-06-30 Methods for producing high purity magnesium alloys

Country Status (11)

Country Link
JP (1) JPH08502321A (en)
AU (1) AU681593B2 (en)
BR (1) BR9307381A (en)
CA (1) CA2147265A1 (en)
FR (1) FR2697030B1 (en)
GB (1) GB2286829B (en)
IL (1) IL106487A (en)
IT (1) IT1264958B1 (en)
NO (1) NO951508D0 (en)
RU (1) RU2103404C1 (en)
WO (1) WO1994009168A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101460572B1 (en) * 2013-01-10 2014-11-13 현대성우오토모티브코리아 주식회사 Stalk of Low Pressure Die Casting Machine for Magnesium Alloy and of Low Pressure Die Casting Machine having the same
CN113416873B (en) * 2021-06-28 2023-01-20 晋中学院 Rare earth magnesium alloy plate with high electromagnetic shielding effect and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264309A (en) * 1940-03-09 1941-12-02 Dow Chemical Co Magnesium base alloy
GB792167A (en) * 1955-08-11 1958-03-19 Dow Chemical Co Method of making a magnesium-base alloy containing aluminium and zinc
US4179287A (en) * 1978-12-19 1979-12-18 Union Carbide Corporation Method for adding manganese to a molten magnesium bath
US5055254A (en) * 1989-10-05 1991-10-08 Timminco Limited Magnesium-aluminum-zinc alloy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264309A (en) * 1940-03-09 1941-12-02 Dow Chemical Co Magnesium base alloy
GB792167A (en) * 1955-08-11 1958-03-19 Dow Chemical Co Method of making a magnesium-base alloy containing aluminium and zinc
US4179287A (en) * 1978-12-19 1979-12-18 Union Carbide Corporation Method for adding manganese to a molten magnesium bath
US5055254A (en) * 1989-10-05 1991-10-08 Timminco Limited Magnesium-aluminum-zinc alloy

Also Published As

Publication number Publication date
AU4656093A (en) 1994-05-09
ITMI931599A0 (en) 1993-07-20
FR2697030A1 (en) 1994-04-22
RU95109879A (en) 1997-01-27
ITMI931599A1 (en) 1995-01-20
IL106487A (en) 1997-04-15
IL106487A0 (en) 1993-11-15
NO951508L (en) 1995-04-20
FR2697030B1 (en) 1995-04-07
NO951508D0 (en) 1995-04-20
WO1994009168A1 (en) 1994-04-28
BR9307381A (en) 1999-08-31
GB2286829B (en) 1996-11-13
JPH08502321A (en) 1996-03-12
GB9508097D0 (en) 1995-06-21
IT1264958B1 (en) 1996-10-17
CA2147265A1 (en) 1994-04-28
RU2103404C1 (en) 1998-01-27
AU681593B2 (en) 1997-09-04

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Legal Events

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

Effective date: 20010630