UA102094C2 - Method of modulated electromagnetic stirring metals in advanced stage of solidification - Google Patents

Method of modulated electromagnetic stirring metals in advanced stage of solidification

Info

Publication number
UA102094C2
UA102094C2 UAA201012415A UAA201012415A UA102094C2 UA 102094 C2 UA102094 C2 UA 102094C2 UA A201012415 A UAA201012415 A UA A201012415A UA A201012415 A UAA201012415 A UA A201012415A UA 102094 C2 UA102094 C2 UA 102094C2
Authority
UA
Ukraine
Prior art keywords
magnetic fields
melt
stirrers
solidification
stirring
Prior art date
Application number
UAA201012415A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Леонід С. Байтельман
Дж. Дуглас ЛАВЕРС
Крістофер П. Каррен
Гоут Толбек
Original Assignee
Абб Інк.
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 Абб Інк. filed Critical Абб Інк.
Publication of UA102094C2 publication Critical patent/UA102094C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/451—Magnetic mixers; Mixers with magnetically driven stirrers wherein the mixture is directly exposed to an electromagnetic field without use of a stirrer, e.g. for material comprising ferromagnetic particles or for molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/122—Accessories for subsequent treating or working cast stock in situ using magnetic fields

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

A method and apparatus for electromagnetic stirring of molten metals in an advanced stage of solidification, as may be used in continuous easting of steel billets and blooms, are disclosed. At least first and second stirrers are provided for generating first and second rotating magnetic fields of a differing frequency about an axis of solidifying molten metal. The stirrers arc arranged about the molten metal in sufficiently close proximity to each other so that their respective magnetic fields superpose to produce a modulated magnetic field. The magnetic fields of the respective stirrers may either have common or opposing rotational directions. The modulated stirring produced by the magnetic fields results in oscillating primary and secondary flows and hence turbulence within the melt bulk in the region wherein temperature of the melt on its central axis is below the liquidus level and at least 10 % of substantially solidified material is formed. Turbulent flow created by this stirring method disrupts formation of crystalline structures in the melt bulk and mixes solute enriched melt of the central region with the bulk volume which subsequently results in improvements of the solidification structure and overall internal quality of the cast products.
UAA201012415A 2008-03-25 2008-07-22 Method of modulated electromagnetic stirring metals in advanced stage of solidification UA102094C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/076,954 US20090242165A1 (en) 2008-03-25 2008-03-25 Modulated electromagnetic stirring of metals at advanced stage of solidification
PCT/CA2008/001333 WO2009117803A1 (en) 2008-03-25 2008-07-22 Modulated electromagnetic stirring of metals at advanced stage of solidification

Publications (1)

Publication Number Publication Date
UA102094C2 true UA102094C2 (en) 2013-06-10

Family

ID=41112874

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA201012415A UA102094C2 (en) 2008-03-25 2008-07-22 Method of modulated electromagnetic stirring metals in advanced stage of solidification

Country Status (12)

Country Link
US (1) US20090242165A1 (en)
EP (1) EP2268431A4 (en)
JP (1) JP2011515225A (en)
KR (1) KR20100139059A (en)
CN (1) CN101980808A (en)
AR (1) AR071042A1 (en)
BR (1) BRPI0822471A2 (en)
CA (1) CA2719299A1 (en)
MX (1) MX2010010410A (en)
RU (1) RU2453395C1 (en)
UA (1) UA102094C2 (en)
WO (1) WO2009117803A1 (en)

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JP6948673B2 (en) * 2017-08-09 2021-10-13 富士電機株式会社 Antifreeze solution and ice slurry
WO2019172142A1 (en) * 2018-03-08 2019-09-12 日本製鉄株式会社 Continuous casting method, cast slab, and continuous casting machine
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RU2759178C2 (en) * 2018-12-17 2021-11-09 Общество с ограниченной ответственностью "НАУЧНО-ПРОИЗВОДСТВЕННЫЙ ЦЕНТР КРАСНОЯРСКИЙ ОПЫТНЫЙ ЗАВОД ТЕХНОЛОГИЧЕСКОГО МАШИНОСТРОЕНИЯ" Method for impacting a metal melt by an electromagnetic field and inductor for implementation thereof
WO2020170836A1 (en) 2019-02-19 2020-08-27 Ｊｆｅスチール株式会社 Control method for continuous casting machine, control device for continuous casing machine, and manufacturing method for cast slab
CN110605366B (en) * 2019-10-25 2021-01-05 北京科技大学 Multi-section linkage type continuous casting magnetic stirring system controlled by time-space function and method thereof
CN114867569A (en) * 2019-12-20 2022-08-05 诺维尔里斯公司 Reduced susceptibility to cracking of 7XXX series Direct Cooled (DC) ingots
CN111940690B (en) * 2020-07-27 2022-04-15 辽宁科技大学 Electromagnetic feeding control method for large-section casting blank continuous casting process
CN111842821B (en) * 2020-07-30 2021-11-23 鼎镁新材料科技股份有限公司 Electromagnetic treatment method for melt cast by aluminum alloy flow table
CN113459508B (en) * 2021-07-08 2023-03-10 杭州电子科技大学 Multichannel converging type biological printing nozzle
CN114797554A (en) * 2022-05-23 2022-07-29 北京科技大学 Molten metal composite shear flow stirring device
CN115635053A (en) * 2022-10-31 2023-01-24 东北大学 Adjustable electric field structure for metal casting and rolling device and electric field applying method
EP4438199A1 (en) * 2023-03-30 2024-10-02 voestalpine Stahl GmbH Method for producing an electric strip or sheet and electric strip or sheet produced therefrom

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Also Published As

Publication number Publication date
BRPI0822471A2 (en) 2015-06-16
CA2719299A1 (en) 2009-10-01
RU2010143386A (en) 2012-04-27
WO2009117803A1 (en) 2009-10-01
US20090242165A1 (en) 2009-10-01
AR071042A1 (en) 2010-05-19
EP2268431A4 (en) 2017-07-12
KR20100139059A (en) 2010-12-31
CN101980808A (en) 2011-02-23
MX2010010410A (en) 2010-12-06
RU2453395C1 (en) 2012-06-20
EP2268431A1 (en) 2011-01-05
JP2011515225A (en) 2011-05-19

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