Process of solidifying molten metal

Metal working – Method of mechanical manufacture – Combined manufacture including applying or shaping of fluent...

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164 76, 164 86, 164276, B22D 1106

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ABSTRACT:
To take advantage of the fact that molten metal which first solidifies against a mold surface has better grain structure and closer chemical identity to the molten metal than the inner portions of a casting, a skin or thin layer of metal forming on a cold surface, such as a revolving water-cooled roll partly immersed in molten metal, is continuously stripped from said surface and almost immediately welded or fused under pressure to the surface of similarly-formed layers to make a unitary finished or semi-finished product. The layers so welded together may be separately formed, or comprise parts of a single layer folded or bent into surface-to-surface contact.

REFERENCES:
patent: 3089208 (1963-05-01), Scribner
patent: 3542116 (1970-11-01), Machlin

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