METHOD FOR MANUFACTURING HONEYCOMB FILTER

WIPO Patent Application WO/2017/033774

A1

According to the present invention, from a green molded body that contains a ceramic material and in which an end of a penetration hole on the side of a lower end surface or an upper end surface is sealed by a sealing part, a honeycomb filter is manufactured by, at an upper end surface member placement step, placing an upper end surface member containing a ceramic material on the upper end surface in a state in which the lower end surface is facing downward and the upper end surface is facing upward, and, at a baking step, baking the green molded body having the upper end surface member placed on the upper end surface. At the upper end surface member placement step, as a result of placing the upper end surface member containing the ceramic material on the upper end surface, transition toward the upper end surface member occurs for a spot where concentration of stress, which is due to a temperature gradient and which becomes a cause of cracking during baking, occurs. As a result, cracking of the honeycomb filter during baking can be prevented.

JPH08288652	SINTERING FURNACE OF CERAMIC MULTILAYERED BOARD AND ITS BAKING METHOD
WO/2018/206969	CERAMIC
WO/2012/057142	METHOD FOR PRODUCING FIRED BODY AND FIRING FURNACE USED THEREFOR

KADOWAKI TAKUYA (PL)

PCT/JP2016/073771

March 02, 2017

August 12, 2016

Click for automatic bibliography generation  

SUMITOMO CHEMICAL CO (JP)

C04B35/64

WO2006095835A1

2006-09-14

JP2013223856A	2013-10-31
JPH0585856A	1993-04-06
JPH02255576A	1990-10-16
JPS62202870A	1987-09-07

HASEGAWA Yoshiki et al. (JP)

View/Download PDF      PDF Help

Previous Patent: MECHANICAL STRUCTURE STEEL FOR COLD-WORKING AND MANUFACTURING METHOD THEREFOR

Next Patent: RESIN MOLDED PRODUCT AND MOLDING DEVICE