摘要:
A thin-walled honeycomb structure includes: a circumferential wall, numerous partition walls disposed inside the circumferential wall, and numerous cell passages defined by the partition walls. A circumferential portion of the honeycomb structure is reinforced wholly or in a part within a certain distance from an extremity surface of the honeycomb structure by a reinforcing material that dissipates or evaporates at a high temperature, and a method for producing the same.
摘要:
A thin-walled honeycomb structure includes: a circumferential wall, numerous partition walls disposed inside the circumferential wall, and numerous cell passages defined by the partition walls. A circumferential portion of the honeycomb structure is reinforced wholly or in a part within a certain distance from an extremity surface of the honeycomb structure by a reinforcing material that dissipates or evaporates at a high temperature, and a method for producing the same.
摘要:
An assembling method for an assembly is provided: the assembly comprising a cell structure (1) housed and held in a metal vessel (5) via a compressible material having a cushioning property (7) by arranging it between outer periphery of the structure (1) and the vessel (5) in a compressed state with applying a mounting pressure to the structure (1) via the material (7) to hold the structure (1) in the vessel (5). Information regarding outside dimension of the structure (1) and/or inside dimension of the vessel (5) being marked on their surfaces prior to the start of assembly, and the information is read, and a cell structure (1) and a metal vessel (5) are selected based on read information in assembly to achieve a proper holding condition therebetween. Regardless of variations in external dimension of the structure, etc. constituting the assembly, the minimization thereof, and proper holding state may be achieved easily without causing a fracture of the structure, etc.
摘要:
A method for assembling a cell structure in a metal vessel, including reading information as indicia located on a surface of a compressible material having a cushioning property, the information regarding the thickness and/or bulk density of the compressible material; selecting a cell structure, a metal vessel, and a compressible material which, when assembled as a cell structure housed in a metal vessel, have a proper holding condition based on the read information; assembling the selected cell structure in the selected metal vessel via the selected compressible material, the compressible material being located in a compressed state between an outer periphery of the cell structure and the metal vessel to hold the selected cell structure in the selected metal vessel.
摘要:
A thin-walled honeycomb structure includes: a circumferential wall, numerous partition walls disposed inside the circumferential wall, and numerous cell passages defined by the partition walls. A circumferential portion of the honeycomb structure is reinforced wholly or in a part within a certain distance from an extremity surface of the honeycomb structure by a reinforcing material that dissipates or evaporates at a high temperature, and a method for producing the same.
摘要:
An undulated-wall honeycomb structure (1) has multiple cell passages (2) with mutually parallel passage directions. With this undulated-wall honeycomb structure (1), intersections (4) between walls (3) partitioning the cell passages (2) are formed at cross-sections perpendicular to the cell passages (2) and positioned systematically maintaining a predetermined pitch, and also the wall face portions (5) of the walls (3) excluding the intersections (4) are formed with undulated shapes in both the cell passage direction and the cross-section direction perpendicular to the cell passage direction. According to this undulated-wall honeycomb structure, advantages such as improved exhaust gas purification capabilities and catalyst capabilities, improved mechanical strength for canning, and further improved heat-resistant shock properties can be obtained.
摘要:
A honeycomb structure includes partition walls arranged in an X-direction and intersecting partition walls so as to form a plurality of cells extending to an other-end portion from a one-end portion through an axial direction. There are disclosed a honeycomb structure in which intersecting portions of the partition walls include an intersecting portion (lacking portion) lacking in the one-end portion, a method of manufacturing the honeycomb structure, and a discharge fluid purification system comprising the honeycomb structure. The honeycomb structure is able to inhibit the opening from being blocked and is easily manufactured.
摘要:
A honeycomb structure includes partition walls arranged in an X-direction and intersecting partition walls so as to form a plurality of cells extending to an other-end portion from a one-end portion through an axial direction. There are disclosed a honeycomb structure in which intersecting portions of the partition walls include an intersecting portion (lacking portion) lacking in the one-end portion, a method of manufacturing the honeycomb structure, and a discharge fluid purification system comprising the honeycomb structure. The honeycomb structure is able to inhibit the opening from being blocked and is easily manufactured.
摘要:
This method is a manufacturing method of a plugged honeycomb structure including porous partition walls which form a plurality of cells divided as channels of a fluid in the form of a honeycomb and a plugging portion formed at one opening end portion of a predetermined cell of a cylindrical honeycomb structure. Openings of all cells of a honeycomb structure are filled with a slurry-like plugging material. Separately, an image of end-surface cells of the honeycomb structure is picked up with a camera. A photo-setting or thermosetting resin film is attached to an end surface of the honeycomb structure in which all of the cells are plugged. After a plugging pattern is printed on the film, the honeycomb structure to which a printed film is attached is irradiated with light or heat by use of a light or heat source. In consequence, only target film portions are allowed to set. At cell portions which have not set, film portions which have not set are removed together with a plugging material with pressurizing air or sandblast.
摘要:
Using a slurry filler having a container having an opening top and storing plugging slurry and a cover attached to the opening top of the container and having a flat upper face and through-holes communicating the inside and the outside of the container and being disposed to correspond to 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 through-holes of the cover, and the plugging slurry stored in the container is filled inside opening ends of cells to be plugged through the through-holes to form the plugged portions. According to this manufacturing method, a plugged honeycomb structure having no defects can be manufactured at low costs for a short time without restriction on operation circumstances with less industrial waste.