Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PRODUCTION METHOD OF HONEYCOMB STRUCTURE, AND HONEYCOMB STRUCTURE
PROBLEM TO BE SOLVED: To provide a production method of a honeycomb structure capable of preventing a crack on an outer peripheral wall in burning a molded honeycomb body.SOLUTION: A production method of a honeycomb structure includes a step for molding a green body containing a cordierite raw material into a molded honeycomb body 1 and a step for applying slurry 7 containing the cordierite raw material. In the step for applying slurry 7, the slurry 7 is applied to four sections 6a-6d on the outer peripheral surface 5 of the molded honeycomb body 1, the sections being arranged within rotation ranges formed by rotating two straight lines L1, L2 in a range of ±x° around the gravity center G of a cross section perpendicular to the direction to which a cell 2 extends, wherein the straight lines extend in the diagonal direction of a main square cell 2a via the gravity center G. The production method further includes a step for burning the molded honeycomb body 1 coated with the slurry 7 to produce a honeycomb structure. The x is a value of 7-45 and the coat layer made of slurry 7 by burning has a porosity higher by 5% or more than that of the main body of the honeycomb structure.SELECTED DRAWING: Figure 4
【課題】ハニカム成形体の焼成時に、外周壁にクラックが生じることを防止できるハニカム構造体の製造方法を提供する。【解決手段】コージェライト化原料を含有する坏土を用いてハニカム成形体１を成形する工程と、ハニカム成形体１の外周面５のうち、セル２の延びる方向に直交する断面の重心Ｇを通って主要四角形セル２ａの対角線方向に延びる２本の直線Ｌ１，Ｌ２を、重心Ｇを回転中心として±ｘ°の範囲で回転させたときの回転領域に存在する４つの部位６ａ〜６ｄに、コージェライト化原料を含有するスラリー７を塗布する工程と、スラリー７が塗布されたハニカム成形体１を焼成して、ハニカム構造体を製造する工程とを有し、前記ｘが、７〜４５の範囲の値であり、スラリー７が、焼成を経てコート層となった後において、ハニカム構造体本体の気孔率よりも５％以上高い気孔率を有するものであるハニカム構造体の製造方法。【選択図】図４
PRODUCTION METHOD OF HONEYCOMB STRUCTURE, AND HONEYCOMB STRUCTURE
PROBLEM TO BE SOLVED: To provide a production method of a honeycomb structure capable of preventing a crack on an outer peripheral wall in burning a molded honeycomb body.SOLUTION: A production method of a honeycomb structure includes a step for molding a green body containing a cordierite raw material into a molded honeycomb body 1 and a step for applying slurry 7 containing the cordierite raw material. In the step for applying slurry 7, the slurry 7 is applied to four sections 6a-6d on the outer peripheral surface 5 of the molded honeycomb body 1, the sections being arranged within rotation ranges formed by rotating two straight lines L1, L2 in a range of ±x° around the gravity center G of a cross section perpendicular to the direction to which a cell 2 extends, wherein the straight lines extend in the diagonal direction of a main square cell 2a via the gravity center G. The production method further includes a step for burning the molded honeycomb body 1 coated with the slurry 7 to produce a honeycomb structure. The x is a value of 7-45 and the coat layer made of slurry 7 by burning has a porosity higher by 5% or more than that of the main body of the honeycomb structure.SELECTED DRAWING: Figure 4
【課題】ハニカム成形体の焼成時に、外周壁にクラックが生じることを防止できるハニカム構造体の製造方法を提供する。【解決手段】コージェライト化原料を含有する坏土を用いてハニカム成形体１を成形する工程と、ハニカム成形体１の外周面５のうち、セル２の延びる方向に直交する断面の重心Ｇを通って主要四角形セル２ａの対角線方向に延びる２本の直線Ｌ１，Ｌ２を、重心Ｇを回転中心として±ｘ°の範囲で回転させたときの回転領域に存在する４つの部位６ａ〜６ｄに、コージェライト化原料を含有するスラリー７を塗布する工程と、スラリー７が塗布されたハニカム成形体１を焼成して、ハニカム構造体を製造する工程とを有し、前記ｘが、７〜４５の範囲の値であり、スラリー７が、焼成を経てコート層となった後において、ハニカム構造体本体の気孔率よりも５％以上高い気孔率を有するものであるハニカム構造体の製造方法。【選択図】図４
PRODUCTION METHOD OF HONEYCOMB STRUCTURE, AND HONEYCOMB STRUCTURE
ハニカム構造体の製造方法及びハニカム構造体
KITAGUCHI DANIEL YUKICHI (Autor:in) / KASHIWAGI NOBUYUKI (Autor:in)
09.08.2018
Patent
Elektronische Ressource
Japanisch
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B01D
SEPARATION
,
Trennen
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
C04B
Kalk
,
LIME
/
F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
,
Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein
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