HONEYCOMB STRUCTURAL BODY FORMING FERRULE AND METHOD OF MANUFACTURING THE FERRULE

摘要

A honeycomb structural body forming ferrule and a method of manufacturing the ferrule, the honeycomb structural body forming ferrule comprising a ferrule base body with a removed soil inlet and slits communicating with the removed soil inlet having, in this order, a substrate layer for generally specifying the final widths of the slits and a surface layer for precisely specifying the final widths of the slits, wherein the slits are formed in a width of 15 to 200 mum, and the surface layer is formed of a material having tungsten carbide particles of 5 mum or below in average grain size formed mainly of W3C, whereby a very small variation in extruding rate and an extruding resistance of each part of the ferrule at the time of extrusion molding and excellent productivity and durability can be provided to the honeycomb structural body ferrule.