Honeycomb structure and method for producing same

Abstract

A honeycomb structure 1 includes a honeycomb structure portion comprising: an outer peripheral wall 20; a partition wall 21 arranged on an inner side of the outer peripheral wall 20, the partition wall 21 defining a plurality of cells 21a each extending from one end face to other end face to form a flow path, wherein the honeycomb structure 1 further includes: a plurality of slits 3 extending radially inward from an outer peripheral surface 1a of the honeycomb structure 1 and extending in an extending direction of the cells 21a; and a filling material 4 filled in the slits 3, and wherein, when a difference between a width Y of the filling material 4 and a width X of each of the slits 3, represented by the following equation (1), is determined for each of the slits 3, a difference between a maximum value A of the difference and a minimum value B of the difference, represented by the following equation (2), is 0.4 mm or less: (Y−X)  (1) (A−B)  (2), in which equation (1), X represents the width of each of the slits 3 on the outer peripheral surface 1a of the honeycomb structure, and Y represents the width of the filling material 4 when the filling material 4 is viewed from the outside in the radial direction of the honeycomb structure 1.

Dependencies are inferred from the claim text.