| 摘要 |
PURPOSE: To provide a method for producing a cordierite ceramic material by which the cordierite ceramic material having low thermal expansibility can be produced at a low cost by using a regenerated raw material. CONSTITUTION: An unbaked regenerated raw material recovered in a process for producing a cordierite ceramic material is pulverized to prepare a pulverized material, from which the pulverized material having <1mm diameter is removed. Water is then added to knead the remaining pulverized material. Thereby, a regenerated clay is prepared, formed and baked to afford a cordierite ceramic material. For example, the pulverized material having substantially >=1mm diameter remains after removing the pulverized material having <1mm diameter. The removal of the pulverized material having <1mm diameter is carried out by using, e.g. a sieve having >=1mm opening size. |
