CASTING MOLD TO MOLD UNIDIRECTIONAL SOLIDIFIED BLADE, MANUFACTURING METHOD FOR UNIDIRECTIONAL BLADE USING THE MOLD AND UNIDIRECTIONAL SOLIDIFIED BLADE

摘要

PROBLEM TO BE SOLVED: To provide a casting mold for a blade to manufacture a unidirectional solidified blade which can control the number of crystal grains to the most suitable one. SOLUTION: In the casting mold for the blade 10 to form a turbine blade which is the unidirectional solidified blade, a plurality of crystal nucleation parts 14 which are projected to the same direction as the growth direction of the crystal grains during the molding of the turbine blade (a longitudinal direction of the blade), are arranged in a section around the blade molding section 11 in the bottom of a platform formation part 12. COPYRIGHT: (C)2004,JPO