Patent ID: 8865054
Filing Date: 2014-10-21
Classification: B28B,C04B,Y10T

Abstract:
1. A method for manufacturing a ceramic honeycomb structure, comprising: kneading titania particles, alumina particles and a binder such that a raw material paste comprising the titania particles, the alumina particles and the binder is prepared; extruding the raw material paste through a die for forming a honeycomb structure such that a body comprising the raw material paste and having the honeycomb structure is formed; supporting the body extruded from the die on a holder while moving the holder along an extrusion direction of the raw material such that a diameter of the body held by the holder changes to a target diameter size; sintering the body having the honeycomb structure with the target diameter size such that a ceramic body having the honeycomb structure with the target diameter size is formed; and forming a precursor comprising particles comprising titania particles and alumina particles, wherein the target diameter size is set different from the diameter of the body extruded from the die, the holder is moved at a moving speed which is determined based on the target diameter size and an extruding speed of the raw material paste from the die, the kneading comprises kneading the binder ingredient and the particles of the precursor comprising the titania particles and the alumina particles, and the forming of the precursor includes spray-drying the alumina particles onto the titania particles.