| 摘要 |
The manufacturing method of the plugged honeycomb structure for DPF wherein a plugging depth thereof can easily be made uniformly and briefly at low costs. In the method for manufacturing a plugged honeycomb structure having a plugging portion formed in one opening end portion of each of predetermined cells of a cylindrical honeycomb structure including a plurality of cells partitioned and formed into a honeycomb shape by porous partition walls to form fluid passages, holes 3 of a perforated elastic porous member 2 are impregnated beforehand with a slurried plugging material 5 , and the elastic porous member 2 is pressed on an end surface of the honeycomb structure 6 to thereby fill the slurried plugging material 5 filled into the holes of the elastic porous member 2 into cell 7 passages of the honeycomb structure 6 to form the plugging portions 7 a.
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