EXTRUSION-MOLDING MACHINE, EXTRUSION-MOLDING METHOD, AND METHOD FOR MANUFACTURING HONEYCOMB STRUCTURED BODY

摘要

An extrusion-molding machine according to the present invention comprises: a screw having a blade portion for extruding a molding material, the screw disposed in a tightly-closed space; and a die for molding an extruded molding material, wherein the space is maintained in a reduced-pressure atmosphere, and a high-hardness coat layer is formed at least on the blade portion.