Continuous metal casting method, apparatus and product

Details Continuous metal casting method, apparatus and product Continuous metal casting method, apparatus and product

1982-12-30

1983-11-08

Lin, Kuang Y.

Stock material or miscellaneous articles

All metal or with adjacent metals

Intermediate article

164467, 164466, 428687, B22D 2702

Patent

active

044142854

ABSTRACT:
Dense homogeneous metal is cast in long lengths by introducing liquid metal into the lower portion of a casting vessel in the presence of an elongated upwardly-traveling alternating electromagnetic levitation field that provides a levitation ratio of from 75% to 200% of the weight per unit length of the liquid metal, solidifying the metal while moving upwardly through the field, and removing solidified metal product from the upper portion of the field. The frequency of the alternating electromagnetic field is established at or near a value F=(36.rho./D.sup.2) where F is the frequency in kilohertz, .rho. is the resistivity of the liquid metal column in micro-ohm-centimeters and D is the diameter of the solidified metal rod product in millimeters.

REFERENCES:
patent: 2955334 (1960-10-01), Pulsifer
patent: 4178979 (1979-12-01), Birat et al.

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