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

1992-06-04

1994-01-18

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164465, 164421, 164133, 222594, B22D 1110

Patent

active

052793532

ABSTRACT:
Method and apparatus used for continuous casting of copper alloy rods and tubes for obtaining a fine grain size therein. Liquidus copper alloy material flows from a reservoir area or crucible into a continuous casting die through spaced apart feed slots disposed in the casting die cap, thereby effecting agitation of the liquidus material, which prevents the formation of thermal gradients large enough to produce gross directional solidification of the alloy at the liquid-solid state transition zone. The desired agitation is effected by altering the number, location, size and angle of the feed slots in accordance with formulas provided for that purpose.

REFERENCES:
patent: 2466612 (1949-04-01), Phillips et al.
patent: 3342252 (1967-09-01), Wood et al.
patent: 3375863 (1968-04-01), Atkin et al.
patent: 3794102 (1974-02-01), Binder
patent: 4000773 (1977-01-01), Sevastakis
patent: 4154291 (1979-05-01), Nielsen
patent: 4315538 (1982-02-01), Nielsen

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