A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HONEYCOMB STRUCTURE AND PRODUCTION METHOD OF HONEYCOMB STRUCTURE
PROBLEM TO BE SOLVED: To provide a honeycomb structure having a large soot accumulation amount and capable of realizing high durability while suppressing the increase of pressure loss.SOLUTION: A honeycomb structure 1 is provided with a polygonal lattice-like partition wall 4 dividing and forming a plurality of cells 3 extending from one end surface 2a forming the flow passage of a fluid to the other end surface. In the partition wall 4 formed to be porous using an aggregate and a binder whose quality of material is different from the aggregate: surface porosity in a surface region 11 from the partition wall surface 4a of the partition wall 4 to a depth of 15% of a partition wall thickness T and internal porosity in an internal region 12 from the partition wall surface 4a to a depth of 15-50% of the partition wall thickness T are different from one another; and a difference subtracting the surface porosity from the internal porosity is more than 1.5%.SELECTED DRAWING: Figure 3
【課題】圧力損失の増加を抑制しつつ、最大スス堆積量が多く、高い耐久性を実現可能なハニカム構造体の提供を課題とする。【解決手段】ハニカム構造体１は、流体の流路を形成する一方の端面２ａから他方の端面まで延びる複数のセル３を区画形成する多角形格子状の隔壁４を備え、隔壁４は、骨材及び骨材と異なる材質の結合材を用いて多孔質に形成され、隔壁４の隔壁表面４ａから隔壁厚さＴの１５％の深さまでの表面領域１１の表面気孔率と、隔壁表面４ａから隔壁厚さＴの１５％から５０％の深さまでの内部領域１２の内部気孔率とがそれぞれ異なり、内部気孔率から表面気孔率を減じた差が、１．５％超となる関係を示す。【選択図】図３
HONEYCOMB STRUCTURE AND PRODUCTION METHOD OF HONEYCOMB STRUCTURE
PROBLEM TO BE SOLVED: To provide a honeycomb structure having a large soot accumulation amount and capable of realizing high durability while suppressing the increase of pressure loss.SOLUTION: A honeycomb structure 1 is provided with a polygonal lattice-like partition wall 4 dividing and forming a plurality of cells 3 extending from one end surface 2a forming the flow passage of a fluid to the other end surface. In the partition wall 4 formed to be porous using an aggregate and a binder whose quality of material is different from the aggregate: surface porosity in a surface region 11 from the partition wall surface 4a of the partition wall 4 to a depth of 15% of a partition wall thickness T and internal porosity in an internal region 12 from the partition wall surface 4a to a depth of 15-50% of the partition wall thickness T are different from one another; and a difference subtracting the surface porosity from the internal porosity is more than 1.5%.SELECTED DRAWING: Figure 3
【課題】圧力損失の増加を抑制しつつ、最大スス堆積量が多く、高い耐久性を実現可能なハニカム構造体の提供を課題とする。【解決手段】ハニカム構造体１は、流体の流路を形成する一方の端面２ａから他方の端面まで延びる複数のセル３を区画形成する多角形格子状の隔壁４を備え、隔壁４は、骨材及び骨材と異なる材質の結合材を用いて多孔質に形成され、隔壁４の隔壁表面４ａから隔壁厚さＴの１５％の深さまでの表面領域１１の表面気孔率と、隔壁表面４ａから隔壁厚さＴの１５％から５０％の深さまでの内部領域１２の内部気孔率とがそれぞれ異なり、内部気孔率から表面気孔率を減じた差が、１．５％超となる関係を示す。【選択図】図３
HONEYCOMB STRUCTURE AND PRODUCTION METHOD OF HONEYCOMB STRUCTURE
ハニカム構造体、及びハニカム構造体の製造方法
OUCHI TAKAHIRO (author) / ICHIKAWA SHUICHI (author)
2016-11-10
Patent
Electronic Resource
Japanese
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