Electromagnetic confinement for vertical casting or containing molten metal

Title: Electromagnetic confinement for vertical casting or containing molten metal

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Abstract

An apparatus and method adapted to confine a molten metal to a region by means of an alternating electromagnetic field. As adapted for use in the present invention, the alternating electromagnetic field given by B.sub.y =(2.mu..sub.o .rho.gy).sup.1/2 (where B.sub.y is the vertical component of the magnetic field generated by the magnet at the boundary of the region; y is the distance measured downward form the top of the region, .rho. is the metal density, g is the acceleration of gravity and .mu..sub.o is the permeability of free space) induces eddy currents in the molten metal which interact with the magnetic field to retain the molten metal with a vertical boudnary. As applied to an apparatus for the continuous casting of metal sheets or rods, metal in liquid form can be continuously introduced into the region defined by the magnetic field, solidified and conveyed away from the magnetic field in solid form in a continuous process.

Inventors:

Lari, Robert J ^[1]; Praeg, Walter F ^[2]; Turner, Larry R ^[3]

Aurora, IL
Palos Park, IL
Naperville, IL

Issue Date:: 1991-01-01

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

OSTI Identifier:: 867666

Patent Number(s):: 4982796

Assignee:: ARCH Development Corp. (Chicago, IL)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22D - CASTING OF METALS

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B - PERFORMING OPERATIONS B22 - CASTING B22D - CASTING OF METALS
B22D11/015 - {using magnetic field for conformation, i.e. the metal is not in contact with a mould}

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DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: electromagnetic; confinement; vertical; casting; containing; molten; metal; apparatus; method; adapted; confine; region; means; alternating; field; rho; gy; component; magnetic; generated; magnet; boundary; distance; measured; downward; form; top; density; acceleration; gravity; permeability; free; space; induces; eddy; currents; interact; retain; boudnary; applied; continuous; sheets; rods; liquid; continuously; introduced; defined; solidified; conveyed; solid; process; containing molten; continuous casting; alternating electromagnetic; magnetic confinement; continuously introduced; region defined; solid form; metal sheets; electromagnetic field; eddy current; molten metal; magnetic field; metal sheet; continuous process; eddy currents; field generated; liquid form; free space; induces eddy; electromagnetic confinement; /164/

Citation Formats


                    Lari, Robert J, Praeg, Walter F, and Turner, Larry R. Electromagnetic confinement for vertical casting or containing molten metal.  United States: N. p., 1991. 
        Web.

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                    Lari, Robert J, Praeg, Walter F, & Turner, Larry R. Electromagnetic confinement for vertical casting or containing molten metal.  United States.

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                    Lari, Robert J, Praeg, Walter F, and Turner, Larry R. Tue .  
        "Electromagnetic confinement for vertical casting or containing molten metal".  United States.  https://www.osti.gov/servlets/purl/867666.

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@article{osti_867666,

  title        = {Electromagnetic confinement for vertical casting or containing molten metal},

  author       = {Lari, Robert J and Praeg, Walter F and Turner, Larry R},

  abstractNote = {An apparatus and method adapted to confine a molten metal to a region by means of an alternating electromagnetic field. As adapted for use in the present invention, the alternating electromagnetic field given by B.sub.y =(2.mu..sub.o .rho.gy).sup.1/2 (where B.sub.y is the vertical component of the magnetic field generated by the magnet at the boundary of the region; y is the distance measured downward form the top of the region, .rho. is the metal density, g is the acceleration of gravity and .mu..sub.o is the permeability of free space) induces eddy currents in the molten metal which interact with the magnetic field to retain the molten metal with a vertical boudnary. As applied to an apparatus for the continuous casting of metal sheets or rods, metal in liquid form can be continuously introduced into the region defined by the magnetic field, solidified and conveyed away from the magnetic field in solid form in a continuous process.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1991},

  month        = {1}

}

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