DIESEL PARTICULATE TRAP AND ITS PREPARATION

摘要

PURPOSE:To obtain a trap having channels vertical to cells provided therein, by sintering a multilayered honeycomb structure wherein a combustible substances are adhered in a strip form between a flat sheet and a corrugated sheet. CONSTITUTION:A paper tape 9 and a flowable plug material 11 having refractory clay mixed therein are held between a flat sheet 8 and a corrugated sheet 5 both of which based on an inorg. fiber and the outflow of the plug material 11 is received in a strip form by the plugs 16a provided to the inner end parts of cells 15a to form a roll shaped or laminated honeycomb shaped structure. This structure is received in an electric furnace not only to incinerate the paper tape 9 and other org. substances but also to integrally sinter an inorg. substance to make it possible to provide communication channels vertical to the gas stream in a trap. This trap can easily burn the particulate accumulated in the trap even if the trap is locally ignited at the time of regeneration.