Ngk Insulators, Inc.

Tomoya Taguchi

Kensuke Okumura

A method of applying a circumferential coating material on a circumferential surface of a ceramic honeycomb structure to form a circumferential coat layer. The method includes vertically aligning the longitudinal axis of the ceramic honeycomb structure, rotating the ceramic honeycomb structure around the vertically-aligned longitudinal axis, and applying the circumferential coating material on the circumferential surface of the rotating honeycomb structure at a discharge speed of 50 to 120 mm/s, calculated byDischarge speed[mm/s]=Supplied amount[g/s] of circumferential coating material&#xf7;(Density &#x3c1; [g/mm] of circumferential coating material&#xd7;Area[mm] of discharge opening).

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Nagoya, Japan

Tomoya Taguchi