METHOD OF MANUFACTURING FERRULE FOR MOLDING HONEYCOMB STRUCTURE AND FERRULE FOR MOLDING HONEYCOMB STRUCTURE

Title:

METHOD OF MANUFACTURING FERRULE FOR MOLDING HONEYCOMB STRUCTURE AND FERRULE FOR MOLDING HONEYCOMB STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2006/098433

Kind Code:

A1

Abstract:

A method of manufacturing a ferrule for molding a honeycomb structure and the ferrule for molding the honeycomb structure. The honeycomb structure comprises a ferrule base body having two faces. Honeycomb-shaped slits (5) are formed in one of these two faces, and a rear hole communicating with the slits (5) for leading a molding material therein is formed in the other. At least the slit parts of the ferrule are formed of a cemented carbide. After the slits (5) are molded by grinding or electrical discharge machining, a discharge electrode (40) of square shape in cross section is disposed near the crossing part of the slits (5), and the electrical discharge machining is performed from the upper surface part of the slits (5) in the depth direction of the slits.

Inventors:

KOISHIKURA, Masaaki (2-56, Suda-cho, Mizuho-ku, Nagoya-sh, Aichi 30, 4678530, JP)
小石倉正明 (〒30 愛知県名古屋市瑞穂区須田町２番５６号日本碍子株式会社内 Aichi, 4678530, JP)

Application Number:

JP2006/305413

Publication Date:

September 21, 2006

Filing Date:

March 17, 2006

Export Citation:

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Assignee:

NGK INSULATORS, LTD. (2-56, Suda-cho Mizuho-ku, Nagoya-sh, Aichi 30, 4678530, JP)
日本碍子株式会社 (〒30 愛知県名古屋市瑞穂区須田町２番５６号 Aichi, 4678530, JP)
KOISHIKURA, Masaaki (2-56, Suda-cho, Mizuho-ku, Nagoya-sh, Aichi 30, 4678530, JP)

International Classes:

B28B3/26; B23H9/00

Attorney, Agent or Firm:

WATANABE, Kazuhira (3rd Fl, No.8 Kikuboshi Tower Building 20-18, Asakusabashi 3-chom, Taito-ku Tokyo 53, 1110053, JP)

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