| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceramic sintered body production method of reducing a difference (shift amount) and variation with respect to a target external dimension by inhibiting abnormal deformation occurring in a ceramic molded body during softening and shrinking due to degreasing and sintering.SOLUTION: There is provided a ceramic sintered body production method by which when degreasing and sintering, the position of the ceramic molded body placed on a bed and having a plurality of curved surfaces each having a different curvature is inclined at 10 degrees or less with respect to the stationary position held stationary by a support directly under the center of gravity. Alternatively, the stationary position may be a position held stationary by supporting the ceramic molded body by two points with the point directly under the center of gravity therebetween or may be a position held stationary by placing the ceramic molded body on a platen and supporting it by two points. The ceramic molded body by this production method may be a ceramic core for use in producing a casting having a hollow wing shape.SELECTED DRAWING: Figure 4 |
