PRECISION-CASTING MOLDING MATERIAL, PRECISION-CASTING MOLD AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a precision-casting molding material which does not cause deformation of a precision-casting mold even when the mold is held at a high temperature for a long period of time, a precise- casting mold and a method for manufacturing the same.SOLUTION: A precision-casting mold for use in the manufacture of a casting is provided which includes: a core having a shape corresponding to the cavity portion of the inside of the casting; and an external mold corresponding to the shape of the outer peripheral surface of the casting. The outer mold includes: a slurry layer made of a precision-casting mold slurry containing magnesium hydroxide slurry as a main component; and a stucco layer formed by adhering a stucco material to the slurry layer.