Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – Spray refining means
Patent
1993-05-18
1994-09-13
Kastler, Scott
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
Spray refining means
266236, 164 46, 164485, B23K 1500, B22D 2300
Patent
active
053461843
ABSTRACT:
An apparatus and method for producing a rapidly solidified ingot characterized by a fine scale microstructure capable of precipitating uniformly dispersed fine particles. A charge of the material is placed in a crucible and heated by a furnace to melt the charge. The melt is discharged from the crucible in a stream along a pouring axis. An ingot mold is oriented at an angle with respect to the pouring axis so that the stream is received in the mold. As the melt is being poured into the mold, the mold is rotated about its central axis at a predetermined speed to continuously shear, both circumferentially and downwardly, a thin layer of the melt from the stream as the stream contacts the sidewall surfaces of the mold. The thin layer is rapidly solidified by the extraction of heat through the mold and is formed, as said ingot mold fills and successive layers are solidified, into an ingot having a fine microstructure capable of developing uniformly dispersed fine particles.
REFERENCES:
patent: 4688621 (1987-08-01), Darmara
patent: 5176874 (1993-01-01), Mourer et al.
Kastler Scott
The Regents of the University of Michigan
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