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US 2013/0140736 A1Published application
Mask for sealing honeycomb structure, and sealing method for honeycomb structure using same
AssigneeSumitomo Chemical Company, Limited
InventorsKousuke Uoe, Teruo Komori, Masaharu Mori, Satoshi Ohira
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Abstract
The mask of the invention is used for plugging of the cells of a honeycomb structure, and it has a plurality of first through-holes running through a thickness direction of the mask, in a region that is to contact with an end face of the honeycomb structure when used. The first through-holes have an open area of 0.03 mm2 or greater, and less than 90% of an open area of the cells to be plugged through the first through-holes.
Claims8
A mask to be used for plugging of cells of a honeycomb structure,
- the mask having a plurality of first through-holes running through a thickness direction of the mask in a region that is to contact with an end face of the honeycomb structure when used,
- an open area of the first through-holes being 0.03 mm2 or greater and less than 90% of an open area of the cells to be plugged through the first through-holes.
A plugging method for cells of a honeycomb structure, comprising:
- (a) a step of positioning a mask on one end face of a honeycomb structure, and
- (b) a step of supplying a plugging material through first through-holes of the mask into openings of cells to be plugged on the one end face of the honeycomb structure,
- wherein the mask has a plurality of first through-holes running through a thickness direction of the mask at a region that is to contact with the one end face of the honeycomb structure,
- an open area of the first through-holes being 0.03 mm2 or greater and less than 90% of an open area of the cells to be plugged through the first through-holes.
1 more element
Dependencies are inferred from the claim text.