| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder molding die device capable of manufacturing a product of high accuracy having excellent concentricity of the inside diameter and the outside diameter by suppressing the inclination of a core rod. SOLUTION: An inlay 12 is provided as a radial direction positioning part positioned at a punching fitting part of a lower punch holder 2, a base end of a lower punch 1 is fitted to the inlay 12, and the lower punch 1 is positioned in the radial direction. A fall-preventive member 13 is provided in the middle of the longitudinal direction of a core rod 7 to support the outer circumference of the core rod 7 by the fall-preventive member 13. The core rod 7 is received and supported by the consistently positioned lower punch 1 and the fall-preventive member 13 to effectively control the inclination caused by a play in a screwed part of a male screw part 7a. COPYRIGHT: (C)2005,JPO&NCIPI
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