C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
22/191, 75/1.2
C22C 1/09 (1980.01)
Patent
CA 1176028
ABSTRACT OF THE DISCLOSURE Disclosed are method and apparatus us for manufacturing bars made of an alloy by unidirectional solidification. The mold is moved relative to a hot source and a cold source disposed below the hot source, the relative positions of the two sources as well as their efficiency and the displacement speed of the mold being set so that is establis- hed within the alloy contained in the mold a planar solidi- fication front with a high thermal gradient at the level of said front, and so that there is produced an orientation of the structure of the alloy which is perpendicular to the solidification front, and, during the whole duration of the solidification, the mold is fed with alloy powder having the required nominal composition at the rate corresponding to the quantity of alloy solidified by unit of time.
402760
Hauser Jean-Michel
Pautonnier Fernand
Rabinovitch Maurice
Arthurs & Garrett
Office National D'etudes Et de Recherches Aerospatiales (o.n.e.r
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