Patent ID: 8052411

Claim:
A die for forming a honeycomb structure, the die having a plate-like shape and comprising: an introduction portion provided on an introduction face on one side and having a plurality of back holes; a forming portion provided on a face on an other side and provided with slits communicating with the back holes, the die forming a forming raw material introduced from the back holes in the introduction portion by passing the forming raw material through the slits in the forming portion in a first direction; and a back holding plate disposed on a periphery of a plate-like shape abrasion portion, extending inward from the periphery of the abrasion portion, covering at least one of the back holes, and directing the forming raw material in a second direction other than that of the first direction, wherein the introduction portion comprises two layers of the abrasion portion constituting the introduction face and an introduction portion main body located between the abrasion portion and the forming portion, the abrasion portion is detachably disposed on the introduction portion main body, and the abrasion portion has a thickness of 0.5 to 5.0 mm, the forming portion and the introduction portion main body are respectively formed of a single plate-like shape member, or the forming portion and the introduction portion main body are unitarily formed, and the back holes of the abrasion portion have a diameter of 0.020 to 0.150 mm larger than that of the back holes of the introduction portion main body, wherein the back holes of the abrasion portion and the introduction portion main body are coaxial.