Method for manufacturing honeycomb structure and the honeycomb structure

Abstract

A method for manufacturing a honeycomb structure includes the steps of: machining a peripheral portion of a honeycomb substrate having a plurality of cells separated by porous partition walls made of ceramic, applying slurry for forming a coating member on a face exposed to outer periphery of partition walls positioned in the outermost periphery to obtain a honeycomb body with slurry, and subjecting the honeycomb body with slurry to heat-drying to obtain a honeycomb structure having the coat member in the outer periphery. The slurry for forming a coat member contains a powder of potsherd having a particle size of 15 to 75 μm, and the slurry has a water content of 26 to 34% by mass. In the method, even if the slurry for forming a coating member is subjected to compulsory drying from the beginning, the coating member hardly has cracks, and a honeycomb structure having no cracks on the coating member can be given by the manufacture method.

Dependencies are inferred from the claim text.