Patent attributes
A method of manufacturing a honeycomb structure having a plugged portion, wherein a mask is applied to the honeycomb structure, a plugging material is supplied on the mask or on the same plane as a surface of the mask, and a pressurizing apparatus disposed at an acute angle with respect to the surface of the mask and having a pressurizing face for pressurizing the plugging material is moved to fill the plugging material into the cells of the honeycomb structure. The pressurizing apparatus is moved on the mask with a part of the region of the pressurizing face being brought into surface contact with the mask via the plugging material to pressurize the plugging material toward the cell side and to push out an extra plugging material in the direction of movement to further pressurize and fill the material into the cells with forming the region of the surface contact.
