DIE FOR EXTRUSION MOLDING, PRODUCTION METHOD FOR DIE FOR EXTRUSION MOLDING, EXTRUSION MOLDING DEVICE, AND PRODUCTION METHOD FOR HONEYCOMB STRUCTURE

摘要

The die for extrusion molding of the present invention includes: a first face; a second face formed opposite the first face; a raw material supply section with a first through hole that extends from the first face toward the second face; and a molding section with a second through hole that extends from the second face toward the first face so as to communicate with the first through hole, wherein the molding section includes a nitride layer provided on an inner wall surface of the second through hole.