Patent ID: 9499442
Filing Date: 2016-11-22
CPC Classification: B28B,C04B

Claim Text:
1. A method for manufacturing a ceramic honeycomb structure, comprising: kneading titania particles, alumina particles and a binder ingredient such that a raw material paste comprising the titania particles, the alumina particles and the binder ingredient is prepared; forming a body comprising the raw material paste and having a honeycomb structure such that the body has the honeycomb structure having a plurality of through-holes extending in a longitudinal direction of the body and a plurality of partition portions formed between the through-holes; sintering the body comprising the raw material paste and having the honeycomb structure at a temperature in a range of from 1350° C. to 1650° C. such that a ceramic body comprising aluminum titanate and having the honeycomb structure is formed; applying a sealant comprising titania particles and alumina particles to one end of each of the through-holes of the ceramic body in the longitudinal direction such that each of the through-holes of the ceramic body is sealed at the one end; and heating the sealant sealing the one end of each of the through-holes of the ceramic body at a temperature which is 1000° C. or higher and lower than the temperature of the sintering of the body such that the ceramic body having a cured sealant at the one end of each of the through-holes in the honeycomb structure is formed without sintering the cured sealant at the one end of each of the through-holes in the honeycomb structure, wherein the heating of the sealant comprises heating both end surfaces of the ceramic body.