Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
To provide a honeycomb filter having high mechanical strength and capable of effectively suppressing an increase in pressure loss when used by carrying a catalyst for exhaust gas purification.SOLUTION: There is provided a honeycomb filter which comprises a columnar honeycomb structure 4 having a porous partition wall 1 disposed so as to surround a plurality of cells 2 which serve as fluid flow paths extending from a first end surface 11 to a second end surface 12 and plugged parts 5 disposed at an opening on the first end surface 11 side or the second end surface 12 side of the respective cell 2. The thickness of the partition wall 1 is 203 to 254 μm. The porosity of the partition wall 1 measured by a mercury penetration method is 55 to 70%. The average pore diameter of the partition wall 1 measured by the mercury penetration method is 20 to 25 μm. In the partition wall 1, the average substrate neck diameter of a substrate neck part in which an entity part of a porous substrate constituting the partition wall 1 becomes locally thin is 11 to 18 μm.SELECTED DRAWING: Figure 1
【課題】機械的強度が高く、且つ排ガス浄化用の触媒を担持して使用した際の圧力損失の上昇を有効に抑制することが可能なハニカムフィルタを提供する。【解決手段】第一端面１１から第二端面１２まで延びる流体の流路となる複数のセル２を取り囲むように配置された多孔質の隔壁１を有する柱状のハニカム構造体４と、それぞれのセル２の第一端面１１側又は第二端面１２側の開口部に配設された目封止部５と、を備え、隔壁１の厚さが、２０３～２５４μｍであり、水銀圧入法によって測定された隔壁１の気孔率が、５５～７０％であり、水銀圧入法によって測定された隔壁１の平均細孔径が、２０～２５μｍであり、隔壁１は、当該隔壁１を構成する多孔質基材の実体部分が局所的に細くなる基材ネック部の平均基材ネック径が、１１～１８μｍである。【選択図】図１
To provide a honeycomb filter having high mechanical strength and capable of effectively suppressing an increase in pressure loss when used by carrying a catalyst for exhaust gas purification.SOLUTION: There is provided a honeycomb filter which comprises a columnar honeycomb structure 4 having a porous partition wall 1 disposed so as to surround a plurality of cells 2 which serve as fluid flow paths extending from a first end surface 11 to a second end surface 12 and plugged parts 5 disposed at an opening on the first end surface 11 side or the second end surface 12 side of the respective cell 2. The thickness of the partition wall 1 is 203 to 254 μm. The porosity of the partition wall 1 measured by a mercury penetration method is 55 to 70%. The average pore diameter of the partition wall 1 measured by the mercury penetration method is 20 to 25 μm. In the partition wall 1, the average substrate neck diameter of a substrate neck part in which an entity part of a porous substrate constituting the partition wall 1 becomes locally thin is 11 to 18 μm.SELECTED DRAWING: Figure 1
【課題】機械的強度が高く、且つ排ガス浄化用の触媒を担持して使用した際の圧力損失の上昇を有効に抑制することが可能なハニカムフィルタを提供する。【解決手段】第一端面１１から第二端面１２まで延びる流体の流路となる複数のセル２を取り囲むように配置された多孔質の隔壁１を有する柱状のハニカム構造体４と、それぞれのセル２の第一端面１１側又は第二端面１２側の開口部に配設された目封止部５と、を備え、隔壁１の厚さが、２０３～２５４μｍであり、水銀圧入法によって測定された隔壁１の気孔率が、５５～７０％であり、水銀圧入法によって測定された隔壁１の平均細孔径が、２０～２５μｍであり、隔壁１は、当該隔壁１を構成する多孔質基材の実体部分が局所的に細くなる基材ネック部の平均基材ネック径が、１１～１８μｍである。【選択図】図１
HONEYCOMB FILTER
ハニカムフィルタ
MASUDA SACHIKO (Autor:in)
10.10.2024
Patent
Elektronische Ressource
Japanisch