SPINNERET FOR MOLDING HONEYCOMB STRUCTURE AND MANUFACTURING METHOD THEREFOR

摘要

Disclosed is a die for forming a honeycomb structure 1, including: a second plate-shaped portion 3 that is formed of iron and the like and has back holes 5; and a first plate-shaped portion 7 that is formed of tungsten carbide based cemented carbide and has cavities 11 communicating with the back holes 5 and slits 9 communicating with the cavities 11, wherein the first plate-shaped portion 7 has a first layer 7a arranged in the second plate-shaped portion 3 side and a second layer 7b arranged on the first layer 7a, the cavities 11 are opened on both sides of the first layer 7a, and the slits 9 are opened on both sides of the second layer 7b. It is possible to provide a die for forming a honeycomb structure having a long service life.