| 摘要 |
<p>A method of manufacturing a honeycomb structure comprising porous cell partition walls (2) forming a compound material in which a plurality of cells are disposed adjacent to one another and a porous honeycomb outer wall (4) which surrounds and holds an outermost peripheral cell (8) positioned in an outermost periphery pf the cell compound material, the porosity of the cell compound material being 5% or more and less than 30%, the method comprising: using a raw material containing at least talc and kaolin components, to carry out a firing process in which the temperature is held in the range 1100 to 1200°C for a given time or temperature is raised at a temperature rise speed of 50°C/hr or less, and is subsequently raised to a maximum temperature, the raw material containing talc whose average particle diameter is 7 µm or more and kaolin whose average particle diameter is 2 µm or more, wherein coarse particle talc having an average particle diameter of 7 µm or more is combined with fine particle talc having an average particle diameter of 2/3 or less times that of the coarse particle talc, the average particle diameter being determined by laser diffraction.</p> |
