Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1975-08-13
1976-08-24
McGehee, Travis S.
Metal founding
Process
Shaping liquid metal against a forming surface
164 87, 164250, 164281H, B22D 2702, B22D 1106
Patent
active
039761177
ABSTRACT:
Molten metal, and particularly molten steel, is continuously converted into a thin strip or strand having the fine grain structure that is found in the thin layer of metal that exists at the surface of a cast ingot where the metal in contact with the cold mold wall solidifies rapidly, and which is sometimes designated the chill layer. The molten metal is contained in a refractory vessel having an open face which is covered in part or entirely by a continuously-moving cold member against which the molten metal solidifies and by which it is carried out of contact with the molten metal in the vessel, the molten metal in the vessel being replenished as it is removed in this manner. Contact between the moving cold surface and the molten metal is effected or controlled in some manner by utilizing the field generated about a conductor energized from an alternating current field to repel a non-magnetic conductor, which includes molten metal. This phenomenon is used to raise the level of molten metal in a vessel, to control its descent from the down leg of a syphon, or confine the escape of molten metal from a discharge terminal and like operations, including using multi-phase alternating currents to moderate the flow of metal in opposition to gravity.
REFERENCES:
patent: 3463365 (1969-08-01), Dumont-Fillon
patent: 3605865 (1971-09-01), Getselev
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