Method and apparatus to effect a fine grain size in continuous c

Details Method and apparatus to effect a fine grain size in continuous c Method and apparatus to effect a fine grain size in continuous c

1980-03-31

1982-02-16

Baldwin, Robert D.

Metal founding

Process

Shaping liquid metal against a forming surface

164439, B22D 1100

Patent

active

043155383

ABSTRACT:
Method and apparatus used for continuous casting of copper alloy rods for obtaining a fine grain size therein. Liquidus copper alloy material flows from a reservoir area or crucible into a continuous casting die. Devices are included to cause agitation of the liquidus material as it enters the die so that no thermal gradients are large enough at the liquidus-solid state transition zone to produce gross directional solidification of the alloy. Devices which may be used to obtain the desired liquidus material agitation include a particular configuration and location for the die inlet openings, electromagnetic stirring and mechanical stirring.

REFERENCES:
patent: 4000773 (1977-01-01), Sevastakis
patent: 4137961 (1979-02-01), Mola
patent: 4154291 (1979-05-01), Nielsen

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