Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1988-10-18
1991-01-08
Lin, Kuang Y.
Metal founding
Process
Shaping liquid metal against a forming surface
164503, B22D 2702
Patent
active
049827960
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.
REFERENCES:
patent: 4541472 (1985-09-01), Eriksson et al.
patent: 4607681 (1986-08-01), Tinnes et al.
patent: 4762653 (1988-08-01), Senillou et al.
Lari Robert J.
Praeg Walter F.
Turner Larry R.
Arch Development Corp.
Lin Kuang Y.
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