Method for producing ceramic honeycomb filters
AssigneeNGK Insulators, Ltd.
InventorsNoboru Higuchi, Teruo Yano, Masahiro Ohnishi
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Abstract
A ceramic honeycomb filter having a large filter area and a low pressure loss is produced by adhering a film on an opening end surface of a porous ceramic honeycomb structural body having a large number of parallel channels extending therethrough, boring holes at a given portion of the film or adhering a film bored at a given portion to an opening end surface of a porous ceramic honeycomb structural body, charging a sealing material into the channels through the bores in the film to seal an end portion of the given channels, and then sealing another end surface of the remaining channels with the sealing material in the same manner as described above.
Claims14
A method for producing a ceramic honeycomb filter comprises adhering a film on an opening end surface of a porous ceramic honeycomb sructural body having a large number of channels extending therethrough, boring holes through the film at a given portion, charging a sealing material into the channels through the bores in the film to seal an end portion of the given channels.
A method for producing a ceramic honeycomb filter comprises adhering a film having holes bored at a given portion to an opening end surface of a porous ceramic honeycomb structural body having a large number of channels, charging a sealing material into the channels through the holes in the film to seal an end portion of the given channels.
Dependencies are inferred from the claim text.