摘要:
A method for manufacturing a honeycomb formed body, which comprises: a mixing step of mixing two or more types of aggregate particulate materials (first mixing) to prepare a forming blend (dry powder) and then mixing the blend with water (second mixing) to prepare a forming blend (wet powder); and a kneading step of kneading the forming blend (wet powder) to prepare a clay. This method for manufacturing a honeycomb formed body allows the prevention of the generation of internal defects without the adoption of a complicated process or a troublesome operation, with ease and simplicity.
摘要:
There is provided a plugged honeycomb structure 1 including: partition walls 2 disposed so as to form a plurality of cells 3 extending from one end face 42 to the other end face 44 in the axial direction, and plugged portions 4 disposed so as to plug the cells 3 at one of the end faces, and a production method thereof. In this honeycomb structure 1, the plugged portions 4 and partition walls surrounding the plugged portions are unitarily formed. The production method includes a forming step, a plugging step for filling a plugging material, and a firing step. The plugging material contains solid particles capable of unitarily joining with at least one kind of solid particles contained in a forming raw material in a firing step. A ratio of a dimensional change (%) upon forming the partition walls out of the partition wall-forming material to a dimensional change (%) upon forming the plugged portions out of the plugging material is controlled to be within the range of 0.7% to 1.3 in the firing step. There is provided a plugged honeycomb structure having further improved strength, adhesion, and thermal shock resistance between partition walls and plugged portions and a production method thereof.
摘要:
There is provided a ceramic honeycomb structure usable as a catalyst substrate and being improved warm-up properties and thermal insulation properties, and being excellent in exhaust gas purification performance; by employing larger heat capacity and larger thermal conductivity compared with a material of the partition walls in at least one of insides and surfaces of the respective partition walls.
摘要:
There is provided a plugged honeycomb structure 1 including: partition walls 2 disposed so as to form a plurality of cells 3 extending from one end face 42 to the other end face 44 in the axial direction, and plugged portions 4 disposed so as to plug the cells 3 at one of the end faces, and a production method thereof. In this honeycomb structure 1, the plugged portions 4 and partition walls surrounding the plugged portions are unitarily formed. The production method includes a forming step, a plugging step for filling a plugging material, and a firing step. The plugging material contains solid particles capable of unitarily joining with at least one kind of solid particles contained in a forming raw material in a firing step. A ratio of a dimensional change (%) upon forming the partition walls out of the partition wall-forming material to a dimensional change (%) upon forming the plugged portions out of the plugging material is controlled to be within the range of 0.7% to 1.3 in the firing step. There is provided a plugged honeycomb structure having further improved strength, adhesion, and thermal shock resistance between partition walls and plugged portions and a production method thereof.
摘要:
There is disclosed a honeycomb structure including a honeycomb structure section including: porous partition walls to divide and form a plurality of cells which extend from one end surface to the other end surface and become through channels of a fluid; and an outer peripheral wall positioned in an outermost periphery. The partition walls and the outer peripheral wall contain silicon carbide particles as an aggregate, and silicon as a binder to bind the silicon carbide particles, thicknesses of the partition walls are from 50 to 200 μm, a cell density is from 50 to 150 cells/cm2, an average particle diameter of silicon carbide as the aggregate is from 3 to 40 μm, and a volume resistivity at 400° C. is from 1 to 40 Ωcm.
摘要翻译:公开了一种蜂窝结构体,其包括蜂窝结构部分,该蜂窝结构部分包括:多孔分隔壁,用于分隔并形成从一个端面延伸到另一端面的多个单元,并且通过流体通道; 以及位于最外周的外周壁。 分隔壁和外周壁包含作为骨料的碳化硅颗粒和作为粘结剂的硅作为结合碳化硅颗粒的分隔壁,隔壁的厚度为50至200μm,电池密度为50至150个/ cm 2,作为骨料的碳化硅的平均粒径为3〜40μm,400℃下的体积电阻率为1〜40Ω·cm。
摘要:
In a hepatic disease-evaluating apparatus, an indicator calculating unit calculates an index indicating the degree of hepatic fibrosis from amino acid concentration data to be evaluated including amino acid concentration value, based on one or more indices of fractional expression having amino acid concentration as variable. A disease state evaluating unit evaluates the disease state of the hepatic disease to be evaluated, based on the index value.
摘要:
In a hepatic disease-evaluating apparatus, an indicator calculating unit calculates an index indicating the degree of hepatic fibrosis from amino acid concentration data to be evaluated including amino acid concentration value, based on one or more indices of fractional expression having amino acid concentration as variable. A disease state evaluating unit evaluates the disease state of the hepatic disease to be evaluated, based on the index value.
摘要:
A ceramic porous body including at least Si as a chemical component, the ceramic porous body being obtained by adding a porous silica powder or a porous silica-containing compound powder to a forming raw material to prepare a clay, forming the resulting ceramic clay into a specific shape, and firing the formed product. The ceramic porous body according to the present invention does not produce carbon dioxide or toxic gas during firing and allows the firing time to be reduced in comparison with the case of using a resin powder or a carbon powder as a pore-forming agent by using the porous silica powder or the porous silica-containing compound powder as the pore-forming agent during production. Moreover, a change in pore-forming characteristics or deformation of a formed product rarely occurs.
摘要:
There are disclosed a method for plugging a cell of a honeycomb structure and a method for manufacturing a honeycomb plugged structure. By the methods, plug portion having arbitrary depth and/or shape can exactly and relatively easily be formed. There is disclosed the method for plugging cell 3 of a honeycomb structure 1 having a plurality of cells surrounded by partition walls and extending through an axial direction. In the method for plugging the cells of the honeycomb structure, plugging member 6 molded in predetermined shape is inserted into the cell 3, and the plugging member 6 is bonded to the peripheral partition walls 3 to form plug portions. There is also provided the method for manufacturing the honeycomb plugged structure, including the steps of: plugging at least a certain cells of the honeycomb structure by this plugging method.
摘要:
A system provided in accordance with the present invention comprises a sever unit (100), which serves as an apparatus for processing information concerning a biological condition information, and a client unit (200), which serves as an information terminal of a provider of the information on the biological condition communicably connected to the server unit (100) via a network (300). The server unit (100) determines a composite index reflecting a plurality of metabolites indicative of the biological condition based on the information on the biological condition acquired from the client unit (200).