PURPOSE: To provide a centrifugal casting method as a directional solidified casting method, by which the casting achieving the uniformity over the whole body can be obtd.
CONSTITUTION: Molten metal is poured into a cylindrical cavity 5 in a rotating metal mold 4, and in the solidified process of this molten metal, many columnar crystals are grown so as to direct toward the cavity axis (a) from the inner peripheral surface 5a of the cavity. At this time, as a metallic mold 4, the one constituting a part forming the inner end surfaces 10, 17 in the axial direction of the cavity 5 with heat insulating members 9, 16, is used. By this method, on the inner end surface 10, 17 sides in the axial direction, the development of the columnar crystal grown to almost parallel with the axis (a) of the cavity is prevented.
NAKAGAWA TATSUYA
FUJIWARA YOSHINARI
TOKUNE TOSHIO
KANOYA IZURU
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