To provide a manufacturing method of a honeycomb structure suppressing the deformation of a honeycomb molded object at the time of drying and preventing trouble such as cracking, wrinkles, etc., and a drying device used therein.
The manufacturing method of the honeycomb structure has a molding process for molding the honeycomb molded object by subjecting a ceramic material, which contains at least a cordierite raw material, water and a binder, to extrusion molding to cut the extrudate into a predetermined length, a drying process for irradiating the honeycomb molded object with a microwave to dry the same, and a firing process for firing the honeycomb molded object to obtain the honeycomb structure. The drying process is divided into a plurality of steps, and in a first step S1, the center temperature of the honeycomb molded object reaches at least the curing start temperature of the binder from the start of drying, wherein the output of the microwave for irradiating the honeycomb molded object in the first step S1 is set higher than the output of the microwave of the subsequent step.
Tamiwa Iwakura
Takahashi Shoki
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