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Title:
METHOD FOR PRODUCING HONEYCOMB STRUCTURE
Document Type and Number:
Japanese Patent JP2015009444
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a honeycomb structure, in which the end of the honeycomb structure can be sealed easily without using sealing paste and to provide the honeycomb structure to be produced by the method for producing the honeycomb structure.SOLUTION: In such a green honeycomb molding 70 that a plurality of through-holes, the adjacent ones of which are divided from each other by a partition wall, are opened on the end face of a columnar body, a plurality of inlet-side octagonal cells 70Octin, the adjacent ones of which are divided from each other by the partition wall 70W, and a plurality of outlet-side square cells 70Sout, the adjacent ones of which are divided from each other by the partition wall 70W, are opened to the upper surface 71a and lower surface 71b. Four outlet-side square cells 70Sout each having a smaller open area are placed adjacently to the periphery of one inlet-side octagonal cell 70Octin while interposing the partition wall 70W therebetween. The partition walls 70W are joined to each other. On the inlet side of a diesel particle filter, the inlet-side octagonal cell 70Octin is opened while sealing the outlet-side square cell 70Sout. On the outlet side thereof, the outlet-side square cell 70Sout is opened while sealing the inlet-side octagonal cell 70Octin. As a result, the inlet side thereof becomes wider and a pressure loss in a state that soot is accumulated can also be reduced.

Inventors:
IGAWA HIROYUKI
INOUE MASASHI
KOMORI TERUO
Application Number:
JP2013136587A
Publication Date:
January 19, 2015
Filing Date:
June 28, 2013
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO
International Classes:
B28B11/10; B01D39/20
Domestic Patent References:
JP2004042440A2004-02-12
JP2006272318A2006-10-12
JP2008307456A2008-12-25
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshinori Shimizu
Takashi Mikami
Ono New