Process for the production of semi-solidified metal composition

Details Process for the production of semi-solidified metal composition Process for the production of semi-solidified metal composition

1994-08-26

1996-09-17

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164 711, 164478, 164479, 164499, 164900, B22D 2702, B22D 2708

Patent

active

055559263

ABSTRACT:
A semi-solidified metal composition having an excellent workability is continuously produced by pouring molten metal into an upper part of a cooling agitation mold, agitating it while cooling to produce a slurry of solid-liquid mixed phase containing non-dendritic primary solid particles dispersed therein and discharging out the slurry from a lower part of the cooling agitation mold. In this case, a ratio of shear strain rate at a solid-liquid interface to solidification rate of molten metal is adjusted to a value exceeding 8000 in the cooling agitation mold.

REFERENCES:
patent: 4434837 (1984-03-01), Winter et al.

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