WO2008103402A3 - Quiescent transfer of melts - Google Patents

Quiescent transfer of melts Download PDF

Info

Publication number
WO2008103402A3
WO2008103402A3 PCT/US2008/002279 US2008002279W WO2008103402A3 WO 2008103402 A3 WO2008103402 A3 WO 2008103402A3 US 2008002279 W US2008002279 W US 2008002279W WO 2008103402 A3 WO2008103402 A3 WO 2008103402A3
Authority
WO
WIPO (PCT)
Prior art keywords
melt
holding furnace
quiescent
melts
metal
Prior art date
Application number
PCT/US2008/002279
Other languages
French (fr)
Other versions
WO2008103402A2 (en
Inventor
John R Grassi
John Campbell
Original Assignee
Alotech Ltd Llc
John R Grassi
John Campbell
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 to US11/710,452 priority Critical patent/US20080202644A1/en
Priority to US11/710,452 priority
Application filed by Alotech Ltd Llc, John R Grassi, John Campbell filed Critical Alotech Ltd Llc
Publication of WO2008103402A2 publication Critical patent/WO2008103402A2/en
Publication of WO2008103402A3 publication Critical patent/WO2008103402A3/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/04Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
    • F27B3/045Multiple chambers, e.g. one of which is used for charging
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/006General 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
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/02Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
    • C22B9/023By filtering
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/14Charging or discharging liquid or molten material
    • F27D3/145Runners therefor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Process efficiency
    • Y02P10/21Process efficiency by recovering materials
    • Y02P10/212Recovering metals from waste
    • Y02P10/234Recovering metals from waste by hydro metallurgy

Abstract

A quiescent melt handling system includes a holding furnace (2, 120, 320 - 720) for a molten metal melt. The holding furnace has a relatively large surface area and a relatively shallow depth, having a width to depth ratio in the range of 4-100 to 1. Also provided is structure (650-680) in the holding furnace for separating inclusions from the melt in the holding furnace. A quiescent transfer casting method includes melting a metal to form a melt and transferring the melt into a holding furnace. A hydrogen content in the melt is passively equilibrated with a dry atmosphere maintained in the holding furnace. Subsequently, the melt is withdrawn from the holding furnace.
PCT/US2008/002279 2007-02-23 2008-02-21 Quiescent transfer of melts WO2008103402A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/710,452 US20080202644A1 (en) 2007-02-23 2007-02-23 Quiescent transfer of melts
US11/710,452 2007-02-23

Publications (2)

Publication Number Publication Date
WO2008103402A2 WO2008103402A2 (en) 2008-08-28
WO2008103402A3 true WO2008103402A3 (en) 2008-10-16

Family

ID=39434275

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/002279 WO2008103402A2 (en) 2007-02-23 2008-02-21 Quiescent transfer of melts

Country Status (2)

Country Link
US (1) US20080202644A1 (en)
WO (1) WO2008103402A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9205490B2 (en) 2007-06-21 2015-12-08 Molten Metal Equipment Innovations, Llc Transfer well system and method for making same
US8366993B2 (en) 2007-06-21 2013-02-05 Cooper Paul V System and method for degassing molten metal
US9410744B2 (en) 2010-05-12 2016-08-09 Molten Metal Equipment Innovations, Llc Vessel transfer insert and system
US8337746B2 (en) 2007-06-21 2012-12-25 Cooper Paul V Transferring molten metal from one structure to another
US9156087B2 (en) 2007-06-21 2015-10-13 Molten Metal Equipment Innovations, Llc Molten metal transfer system and rotor
US9409232B2 (en) 2007-06-21 2016-08-09 Molten Metal Equipment Innovations, Llc Molten metal transfer vessel and method of construction
US10428821B2 (en) 2009-08-07 2019-10-01 Molten Metal Equipment Innovations, Llc Quick submergence molten metal pump
US9108244B2 (en) 2009-09-09 2015-08-18 Paul V. Cooper Immersion heater for molten metal
DE102010006229B3 (en) * 2010-01-28 2011-05-05 Sms Meer Gmbh Pressurized furnace comprises a melt area and a furnace window in which the flow of melt is controlled through the furnace window over pressure exerted on the melt, and in which a displacer insert is partially arranged in the melt area
US8863381B2 (en) * 2010-12-22 2014-10-21 GM Global Technology Operations LLC Method of making a piston oil gallery using a hollow metallic core
US9475118B2 (en) * 2012-05-01 2016-10-25 United Technologies Corporation Metal powder casting
US9051623B2 (en) * 2012-05-29 2015-06-09 Gors Ltd. Apparatus for melting a solid metal
US9903383B2 (en) 2013-03-13 2018-02-27 Molten Metal Equipment Innovations, Llc Molten metal rotor with hardened top
US9011761B2 (en) 2013-03-14 2015-04-21 Paul V. Cooper Ladle with transfer conduit
US10052688B2 (en) 2013-03-15 2018-08-21 Molten Metal Equipment Innovations, Llc Transfer pump launder system
US10465688B2 (en) 2014-07-02 2019-11-05 Molten Metal Equipment Innovations, Llc Coupling and rotor shaft for molten metal devices
US10267314B2 (en) 2016-01-13 2019-04-23 Molten Metal Equipment Innovations, Llc Tensioned support shaft and other molten metal devices

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE486525C (en) * 1929-11-22 Vaw Ver Aluminium Werke Ag A method for degassing of light metals, especially aluminum and aluminum alloy
EP0095645A1 (en) * 1982-05-20 1983-12-07 Cosworth Research And Development Limited Method and apparatus for melting and casting metal
EP0291580A1 (en) * 1987-05-19 1988-11-23 ALUMINIA S.p.A. Apparatus for in-line degassing and filtering of aluminium and its alloys
EP0300411A2 (en) * 1987-07-21 1989-01-25 Retech, Inc. Melting retort and method of melting materials
EP0738552A2 (en) * 1995-04-14 1996-10-23 Ryobi Ltd. Molten metal supply device
US5725043A (en) * 1993-07-02 1998-03-10 Frank W. Schaefer, Inc. Low pressure casting process and apparatus
US6103182A (en) * 1998-06-27 2000-08-15 Alotech, Inc. Dispensing apparatus and method
EP1752726A1 (en) * 2005-08-11 2007-02-14 ALUAR Aluminio Argentino S.A.I.C. Transfer system for liquid metals

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2068924A (en) * 1932-12-02 1937-01-26 Hartford Empire Co Regenerator tank and method of operating the same
US3809379A (en) * 1970-04-21 1974-05-07 Alsacienne Atom Installation for the treatment and movement of liquid metals
JPS5143015B2 (en) * 1972-05-04 1976-11-19
US4002468A (en) * 1975-04-28 1977-01-11 Swiss Aluminium Ltd. Scrap smelting process
US4850577A (en) * 1988-06-15 1989-07-25 Kabushiki Kaisha Daiki Aluminum Kogyosho Melting and holding furnace
JPH037468B2 (en) * 1988-07-01 1991-02-01 Daiki Aruminiumu Kogyosho Kk
US4990059A (en) * 1988-12-19 1991-02-05 Aluminum Company Of America Method for filtering liquid-phase metals
JPH032334A (en) * 1989-05-29 1991-01-08 Meichiyuu Seiki Kk Metal melt holding furnace
JPH08294765A (en) * 1995-04-26 1996-11-12 Toshiba Mach Co Ltd Constant molten metal surface level melt holding furnace
US5741514A (en) * 1995-08-31 1998-04-21 Yissum Research Development Company Of The Hebrew University Of Jerusalem Method for reducing serum lipoprotein(a) concentration

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE486525C (en) * 1929-11-22 Vaw Ver Aluminium Werke Ag A method for degassing of light metals, especially aluminum and aluminum alloy
EP0095645A1 (en) * 1982-05-20 1983-12-07 Cosworth Research And Development Limited Method and apparatus for melting and casting metal
EP0291580A1 (en) * 1987-05-19 1988-11-23 ALUMINIA S.p.A. Apparatus for in-line degassing and filtering of aluminium and its alloys
EP0300411A2 (en) * 1987-07-21 1989-01-25 Retech, Inc. Melting retort and method of melting materials
US5725043A (en) * 1993-07-02 1998-03-10 Frank W. Schaefer, Inc. Low pressure casting process and apparatus
EP0738552A2 (en) * 1995-04-14 1996-10-23 Ryobi Ltd. Molten metal supply device
US6103182A (en) * 1998-06-27 2000-08-15 Alotech, Inc. Dispensing apparatus and method
EP1752726A1 (en) * 2005-08-11 2007-02-14 ALUAR Aluminio Argentino S.A.I.C. Transfer system for liquid metals

Also Published As

Publication number Publication date
WO2008103402A2 (en) 2008-08-28
US20080202644A1 (en) 2008-08-28

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