Electromagnetic confinement for vertical casting or containing molten metal

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:867666

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

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1. Aurora, IL
2. Palos Park, IL
3. Naperville, IL

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: ARCH Development Corp. (Chicago, IL)
• Patent Number(s): US 4982796
• OSTI ID: 867666
• Country of Publication: United States
• Language: English

Related Subjects

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
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