发明申请
US20060150598A1 Sealed honeycomb structure and method of producing the same 有权
密封蜂窝结构及其制造方法

  • 专利标题: Sealed honeycomb structure and method of producing the same
  • 专利标题(中): 密封蜂窝结构及其制造方法
  • 申请号: US10548813
    申请日: 2004-03-19
  • 公开(公告)号: US20060150598A1
    公开(公告)日: 2006-07-13
  • 发明人: Yukihito IchikawaYasushi Noguchi
  • 申请人: Yukihito IchikawaYasushi Noguchi
  • 申请人地址: JP Nagoya-city, Aichi-prefecture 467-8530
  • 专利权人: NGK Insulators, LTD.
  • 当前专利权人: NGK Insulators, LTD.
  • 当前专利权人地址: JP Nagoya-city, Aichi-prefecture 467-8530
  • 优先权: JP2003-083213 20030325
  • 国际申请: PCT/JP04/03736 WO 20040319
  • 主分类号: B01D46/00
  • IPC分类号: B01D46/00
Sealed honeycomb structure and method of producing the same
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.
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