Method of manufacturing plugged honeycomb structure and plugged honeycomb structure

-13. (canceled)

A method for manufacturing a plugged honeycomb structure having a honeycomb structure where a plurality of cells extending between two opening ends are defined by porous partition walls and plugged portions disposed so as to plug one of the two opening ends of each of the cells,

• wherein, using a slurry filler having a container having an opening top and storing plugging slurry prepared by slurring a material for the plugged portions and a cover attached to the opening top of the container and having a flat upper face and a plurality of through-holes which communicate the inside and the outside of the container and attach a pipe having outer dimensions smaller than the size of the opening portion of the cell and being disposed so as to correspond to the positions of cells to be plugged on an end face of the honeycomb structure, the honeycomb structure is set on the cover by positioning so that opening ends of cells to be plugged of the honeycomb structure match positions of the through-holes of the cover, and
• the plugging slurry stored in the container is filled into the inside of the opening ends of the cells to be plugged through the through-holes to form the plugged portions.

A method for manufacturing a plugged honeycomb structure having a honeycomb structure where a plurality of cells extending between two opening ends are defined by porous partition walls and plugged portions disposed so as to plug one of the two opening ends of each of the cells,

• wherein, using a slurry filler having a container having an opening top and storing plugging slurry prepared by slurring a material for the plugged portions and a cover attached to the opening top of the container and having a flat upper face and a plurality of through-holes which communicate the inside and the outside of the container and form a concave depression having dimensions smaller than the size of the opening portion of each of the cells in the periphery of the opening end on the container outer side thereof and being disposed so as to correspond to the positions of cells to be plugged on an end face of the honeycomb structure, the honeycomb structure is set on the cover by positioning so that opening ends of cells to be plugged of the honeycomb structure match positions of the through-holes of the cover, and
• the plugging slurry stored in the container is filled into the inside of the opening ends of the cells to be plugged through the through-holes to form the plugged portions.

A plugged honeycomb structure having a honeycomb structure where a plurality of cells extending between two opening ends are defined by porous partition walls and plugged portions disposed so as to plug one of the two opening ends of each of the cells, wherein cells to be plugged among the cells locating in the outermost periphery of the honeycomb structure are entirely plugged with the plugged portions.