Patent ID: 7981475

Claim:
A method of manufacturing a honeycomb structural body, comprising: preparing a pillar-shaped porous honeycomb member; applying a sealing material in an uncured paste state onto a circumferential surface of the pillar-shaped porous honeycomb member; fitting onto the circumferential surface of the pillar-shaped porous honeycomb member a ring-shaped scraper having a ring-shaped center member configured to make a contact with the circumferential surface of the pillar-shaped porous honeycomb member such that the ring-shaped center member makes the contact with the circumferential surface of the pillar-shaped porous honeycomb member and applies a sufficient pressure on the circumferential surface of the pillar-shaped porous honeycomb member to scrape the sealing material and forms a sealing material layer on the circumferential surface of the pillar-shaped porous honeycomb member while sliding along the circumferential surface of a pillar-shaped porous honeycomb member; moving said ring-shaped scraper in a length direction of the pillar-shaped porous honeycomb member from one end of the pillar-shaped porous honeycomb member such that the ring-shaped center member is separated from the circumferential surface of the pillar-shaped porous honeycomb member and the sealing material is spread over the circumferential surface of said pillar-shaped porous honeycomb member; and moving said ring-shaped scraper in the length direction of the pillar-shaped porous honeycomb member from an opposite end of the pillar-shaped porous honeycomb member such that the moving of said ring-shaped scraper is reversed.