Ngk Insulators, Inc.

Jiro Maeda

Yukihisa Wada

Tomohiro Iida

There is disclosed a die for forming a honeycomb structure and a method of manufacturing the honeycomb structure by use of the die, in which variations of cell pitches are suppressed in a central portion and the vicinity of an outer periphery after drying and firing an extruded honeycomb structure, and the honeycomb structure having a uniform cell pitch can be manufactured. A diefor forming a honeycomb structure has a front surface provided with groovy slitsformed between cell blocksand a back surface provided with back holescommunicating with the slits. The diehas a structure in which a pitch P of the adjacent cell blocksis enlarged from a central portion of the front surface toward an outer periphery in a stepwise manner.

Growing community of inventors

Nagoya, Japan

Jiro Maeda