Patent application number | Description | Published |
20120317942 | HONEYCOMB STRUCTURE - The present invention aims to provide a honeycomb structure capable of preventing a plugging failure and forming cracks by heat shock which are caused by a cell having a small cross-section. The present invention is a honeycomb structure used for a filter for purifying an exhaust gas discharged from an internal combustion engine, wherein
| 12-20-2012 |
20130022697 | SEALING DEVICE - A plugging device | 01-24-2013 |
20130036612 | METHOD FOR MANUFACTURING A HONEYCOMB-STRUCTURED OBJECT - A method for manufacturing a honeycomb-structured object having a plurality of through holes having ends thereof plugged, including a step of pressing a plugging material against one end surface of a honeycomb-structured object | 02-14-2013 |
20130099412 | EXTRUSION-MOLDING DEVICE AND METHOD FOR PRODUCING MOLDED BODY USING SAME - The extrusion-molding device of the invention includes a flow passage for transporting a paste raw material composition; a screw provided at an upstream side of the flow passage to knead the raw material composition and transport it to a downstream side; a die provided at a downstream side of the flow passage to extrude a molded body composed of the raw material composition therefrom; a resistive tube for connecting the flow passage and the die; and a current plate provided between the screw and the die. The current plate comprises a plurality of through-holes that penetrate from a upstream end side to a downstream end side, and an opening of the through-hole on the upstream end side has a larger open area than an opening on the downstream end side. | 04-25-2013 |
20130140736 | MASK FOR SEALING HONEYCOMB STRUCTURE, AND SEALING METHOD FOR HONEYCOMB STRUCTURE USING SAME - 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 mm | 06-06-2013 |
20130188769 | METHOD AND APPARATUS FOR INSPECTING HONEYCOMB STRUCTURE - Obtaining computer-tomography images of a first section at a distance Z | 07-25-2013 |
20140050812 | EXTRUSION MOLDING APPARATUS AND MANUFACTURING METHOD FOR GREEN HONEYCOMB MOLDED BODY USING SAME - The extrusion-molding device of the invention is for producing a green honeycomb molded body with a cell structure, and the device includes a housing, a screw, a die with slits, a resistance tube and a fragmenting board having through-passages through which a raw material composition passes from the upstream end side to the downstream end side. The through-passages of the fragmenting board have upstream channels composed of a plurality of flow passages extending downstream from the upstream end side, and downstream channels extending up to the downstream end side and having flow passage cross-sectional shapes different from those of the upstream channels. | 02-20-2014 |
20140290197 | HONEYCOMB STRUCTURE - The columnar honeycomb structure | 10-02-2014 |
20140327191 | TUNNEL KILN AND METHOD FOR PRODUCING FIRED BODY USING SAME - The tunnel kiln according to the present invention includes a tunnel kiln main body having an inner wall constituted by a furnace material, and having a debinding zone and a sintering zone wherein respectively debinding and sintering of a body to be fired containing an organic component are performed; a conveying unit for conveying the body to be fired from an inlet side to an outlet side of the tunnel kiln main body; and a lining provided so that at least an inner wall of the debinding zone of the inner wall of the tunnel kiln main body is covered therewith. | 11-06-2014 |
20150231546 | PRODUCTION METHOD FOR HONEYCOMB STRUCTURE - Regular hexagonal cells at both an top surface and a bottom surface of a green honeycomb molded body are closed at the same time. Therefore, the regular hexagonal cells can be closed effectively. In addition, the regular hexagonal cells of the green honeycomb molded body are closed by welding partition walls with each other, by inserting each of closing protrusions of a closing jig into the plurality of regular hexagonal cells. Therefore, a closing paste like the conventional method is not required. In a case where a honeycomb structure is used for a diesel particulate filter, turbulence of exhaust gas flow, at the end surface of the side to supply the exhaust gas and/or the side to discharge the exhaust gas, is reduced, and pressure drop can be reduced. | 08-20-2015 |
20150298349 | METHOD FOR PRODUCING HONEYCOMB STRUCTURE AND SEALING JIG FOR GREEN HONEYCOMB MOULDED ARTICLE - A closing jig for a green honeycomb molded body includes closing protrusions which are arranged at positions corresponding to regular hexagonal cells and are inserted into the regular hexagonal cells to weld partition walls to each other for closing. Each of the closing protrusions includes a conical tip end portion that has a conical shape, and a triangular pyramidal base portion with a truncated triangular pyramidal shape having an apex angle larger than an apex angle of the conical tip end portion. The conical tip end portion has the conical shape with an acute apex angle. The triangular pyramidal base portion has the truncated triangular pyramidal shape having the large apex angle. | 10-22-2015 |
20150376072 | METHOD FOR MANUFACTURING HONEYCOMB STRUCTURE - A method for manufacturing a honeycomb structure in which some of a plurality of through-holes that are opened at the end face of the cylinder, and mutually divided by partitions, have been closed, wherein a closing jig is inserted into some of the plurality of hexagonal cells of a green honeycomb molded body which has a plurality of hexagonal cells mutually divided by partitions and is open at the end face of the cylinder, thereby contact bonding together the partitions to close the hexagonal cells. Thus, it is possible to close hexagonal cells in a very simple manner during manufacture of the honeycomb molded body. | 12-31-2015 |