HONEYCOMB FORMING FERRULE AND JIG FOR HONEYCOMB FORMING FERRULE USING THE FERRULE

摘要

A honeycomb forming ferrule (10) having such a structure that groove-like slits (2) are formed of cell blocks (3) in a surface and rear holes (4) communicating with the slits (2) are formed in a rear surface and being formed of a cemented carbide with high wear resistance, wherein the cemented carbide is sintered at a high temperature after compressingly forming cemented carbide compound powder of transition metal element series with a tough iron family metal used as binder, and the ratio of the connection area of the cell blocks (3) to that of the rear holes (4) is 35 to 65%, whereby, by the honeycomb forming ferrule and a jig for honeycomb forming ferrule using the ferrule, when a basis material containing a very hard material such as SiC is extrudedly formed, the wear resistance of the ferrule or the jig for the ferrule can be increased, and the defective shape of a formed body due to the wear of the ferrule can be eliminated.