Patent ID: 7897099
Filing Date: 2011-03-01
Classification: B01D,B29C,B29L,C04B,F01N,Y10T

Abstract:
1. A method for producing a cordierite honeycomb structure comprising the step of firing a honeycomb formed body, the step comprising: for a temperature range from 1200° C. to 1250° C., using a first temperature rise rate; for a temperature range from 1250° C. to 1300° C., using a second temperature rise rate; for a temperature range from 1300° C. to 1400° C., using a third temperature rise rate; and the second temperature rise rate being smaller than both the first and third temperature rise rates, wherein the first and third temperature rise rates are equal to or greater than 50° C./hour, and the second temperature rise rate is between 2 and 30° C./hour.