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Title:
METHOD FOR MANUFACTURING HONEYCOMB STRUCTURE FORMING DIE
Document Type and Number:
Japanese Patent JP2011194537
Kind Code:
A
Abstract:

To provide a method for manufacturing a honeycomb structure forming die for more easily manufacturing the die for extruding the honeycomb structure with the sizes of cells different between the inflow side and the outflow side of a fluid to be processed.

The method for manufacturing the honeycomb structure forming die includes: an introduction hole forming step for forming, in plate-shaped die substrate having one side end face and the other side end face, a plurality of introduction holes for introducing kneaded clay on the other side end face to function as a kneaded clay introduction face; and a slit forming step for forming slits communicating with the introduction holes in order to form the partition walls of the honeycomb structure by extruding the kneaded clay by performing a comb-like electro-discharge machining by a comb-like electrode 21 where a plurality of plate-shaped protrusion electrodes 23 corresponding with the width of the slits are disposed on the one side end face to function as a kneaded clay formation face of the die substrate.


Inventors:
HAYASHI SEIICHIRO
NAGAE TOMOTAKE
IWADE MASANARI
Application Number:
JP2010065879A
Publication Date:
October 06, 2011
Filing Date:
March 23, 2010
Export Citation:
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Assignee:
NGK INSULATORS LTD
International Classes:
B23H9/12; B23H1/00; B28B3/26
Domestic Patent References:
JP2005254345A2005-09-22
JP2003071638A2003-03-12
JP2002172527A2002-06-18
Attorney, Agent or Firm:
Ippei Watanabe
Koji Kikawa
Hiroyuki Sato
Shigeru Koike