Title:
DIE DEVICE FOR MOLDING HONEYCOMB STRUCTURE
Document Type and Number:
Japanese Patent JPS5777521
Kind Code:
A
Abstract:
An extrusion die for extruding a honeycomb structure having a thick outer peripheral wall without generating any distortion or deformation therein, comprises a die body provided with a plurality of disconnected feed passageways and interconnected grid-shaped extrusion slots, an annular die mask which is closely contacted with the outer peripheral portion of the outlet face of the die body. In the outlet face of the die body, along the inner peripheral wall of the die mask, an annular groove of which depth is smaller than that of the extrusion slots is formed so as to open in the extruding direction.
Inventors:
YAMAMOTO SHINICHI
SAKASHIN FUMITOSHI
ITOU TOSHIHIKO
SAKASHIN FUMITOSHI
ITOU TOSHIHIKO
Application Number:
JP15445080A
Publication Date:
May 14, 1982
Filing Date:
October 31, 1980
Export Citation:
Assignee:
NIPPON SOKEN
International Classes:
B28B3/26; B28B3/20; B29C48/11; B29C48/32; (IPC1-7): B28B3/26