Process for continuous casting of metal ribbon
OwnerAtsumi Ohnoinventor
Life of this patent
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Abstract
A metal sheet or ribbon having a unidirectional crystalline structure is produced by continuous casting by the steps of feeding the molten metal to be cast onto the surface of a solidification support moving continuously in one direction along a given path, while heating the solidification support so that the surface thereof at the position for receiving the molten metal is at a temperature exceeding the solidification temperature of the metal being delivered thereto, and then cooling the delivered metal downstream of said position whereby the formation of crystal nuclei upon contact of the delivered molten metal is inhibited and the solid sheet or ribbon has a unidirectional crystalline structure conducive to ease in cold working without cracking.
Claims18
A process for the continuous casting of a metal ribbon having unidirectional solidification structure which comprises the steps of moving slowly and continuously in one direction along a given path, an elongated solidification support having a surface adapted to receive molten metal thereon;
- flowing a thin stream of molten metal onto said moving support surface at a locus along said support path;
- heating said surface upstream of said locus so that the temperature of said surface while passing through said locus is above the melting point of said metal flowed thereon;
- and while said metal stream is supported on said support, contacting its exposed surface opposite said support downstream of said locus with a cooling medium to cool the metal moving with the surface to solidify the same, whereby the creation of crystalline nuclei in the metal stream upon contact with said support surface is inhibited.
Dependencies are inferred from the claim text.