| 摘要 |
A manufacturing method of a plugged honeycomb structure 30 which comprises a honeycomb substrate 1 and plugging portions 15 arranged so as to form complementary checkered patterns alternately at both end surfaces 11 and 21 of the honeycomb substrate 1 . The method comprises attaching mask films 4 a and 4 b to both end surfaces 11 and 21 of the honeycomb substrate 1 , respectively; forming slurry permeation holes 3 a at portions of the mask films 4 a and 4 b corresponding to cell opening end portions 7 , respectively; forming deaeration holes 3 b at portions of the mask films 4 a and 4 b facing the portions provided with the slurry permeation holes 3 a via cells 2 ; submerging both end surfaces 11 and 21 of the honeycomb substrate 1 to which the mask films 4 a and 4 b have been attached into a plugging slurry 6 , respectively; and firing the resultant slurry filled substrate 20.
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