HONEYCOMB STRUCTURAL BODY FORMING FERRULE AND METHOD OF MANUFACTURING THE FERRULE

Title:

HONEYCOMB STRUCTURAL BODY FORMING FERRULE AND METHOD OF MANUFACTURING THE FERRULE

Document Type and Number:

WIPO Patent Application WO/2003/039828

Kind Code:

A1

Abstract:

A honeycomb structural body forming ferrule and a method of manufacturing the ferrule, the honeycomb structural body forming ferrule comprising a ferrule base body with a removed soil inlet and slits communicating with the removed soil inlet having, in this order, a substrate layer for generally specifying the final widths of the slits and a surface layer for precisely specifying the final widths of the slits, wherein the slits are formed in a width of 15 to 200 μm, and the surface layer is formed of a material having tungsten carbide particles of 5 μm or below in average grain size formed mainly of W₃C, whereby a very small variation in extruding rate and an extruding resistance of each part of the ferrule at the time of extrusion molding and excellent productivity and durability can be provided to the honeycomb structural body ferrule.

Inventors:

MATSUOKA SUSUMU (JP)
INOUE SEIICHI (JP)
ITO HAREMI (JP)
MATSUMOTO KEIJI (JP)

Application Number:

PCT/JP2002/011489

Publication Date:

May 15, 2003

Filing Date:

November 05, 2002

Export Citation:

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Assignee:

NGK INSULATORS LTD (JP)
MATSUOKA SUSUMU (JP)
INOUE SEIICHI (JP)
ITO HAREMI (JP)
MATSUMOTO KEIJI (JP)

International Classes:

B01J35/04; B28B3/20; B29C48/30; B28B3/26; B29C48/11; B29C48/345; C23C16/04; C23C16/32; C23C18/16; B29C48/32; (IPC1-7): B28B3/26; C23C16/32

Foreign References:

JP2002001716A	2002-01-08
US6193497B1	2001-02-27
GB1542856A	1979-03-28
JPS63109171A	1988-05-13
JPS63199869A	1988-08-18

Other References: