End-face heating apparatus, end-face drying method for honeycomb aggregated body, and method for manufacturing honeycomb structured body

• US 7,603,793 B2
• Filed: 11/30/2006
• Issued: 10/20/2009
• Est. Priority Date: 02/24/2006
• Status: Expired due to Fees

• Current Assignee: Ibiden Co., Ltd.
• Original Assignee: Ibiden Co., Ltd.
• Inventors: Takahashi, Koji, Ban, Tomonori, Hoshino, Takafumi
• Primary Examiner(s): GRAVINI, STEPHEN MICHAEL
• Application Number:
  US11/606,173
• Publication Number:
  US 20070199205A1
• Time in Patent Office: 1,055 Days
• Field of Search: 342/45, 344/37, 343/80, 343/81, 344/13, 344/97, 345/09, 428/116, 264/148, 555/23, 269/9
• US Class Current: 34/245
• CPC Class Codes: C04B 2111/00129 Extrudable mixtures
• CPC Class Codes: C04B 2111/0081 as catalysts or catalyst carriers
• CPC Class Codes: C04B 2235/3418 Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
• CPC Class Codes: C04B 2235/5224 Alumina or aluminates
• CPC Class Codes: C04B 2235/526 characterised by the length of the fibers
• CPC Class Codes: C04B 2235/5436 micrometer sized, i.e. from 1 to 100 micron
• CPC Class Codes: C04B 2235/5445 submicron sized, i.e. from 0,1 to 1 micron
• CPC Class Codes: C04B 2235/5472 Bimodal, multi-modal or multi-fraction
• CPC Class Codes: C04B 2235/6021 Extrusion moulding
• CPC Class Codes: C04B 2235/762 Cubic symmetry, e.g. beta-SiC
• CPC Class Codes: C04B 2235/77 Density
• CPC Class Codes: C04B 2235/80 Phases present in the sintered or melt-cast ceramic products other than the main phase
• CPC Class Codes: C04B 35/565 based on silicon carbide
• CPC Class Codes: C04B 35/6263 characterised by their solids loadings, i.e. the percentage of solids
• CPC Class Codes: C04B 35/62655 Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying
• CPC Class Codes: C04B 35/6316 Binders based on silicon compounds
• CPC Class Codes: C04B 35/80 Fibres, filaments, whiskers, platelets, or the like
• CPC Class Codes: C04B 38/0016 assembled from subunits
• CPC Class Codes: C04B 38/0054 the pores being microsized or nanosized
• CPC Class Codes: C04B 38/0074 expressed as porosity percentage
• CPC Class Codes: C04B 38/0655 : Porous materials C04B38/0625 takes precedence
• CPC Class Codes: C04B 38/08 : by adding porous substances
• CPC Class Codes: Y10T 428/24149 : Honeycomb-like

Abstract

An end-face heating apparatus of the present invention comprises: a heating tool that is placed almost in parallel with an end face of a honeycomb aggregated body in which a plurality of pillar-shaped honeycomb fired bodies are integrated with one another by interposing a sealing material paste layer formed on the side face of the honeycomb fired body; a heating tool translation device for translating said heating tool toward said honeycomb aggregated body; and a holding jig that holds said honeycomb aggregated body.

Claims

1. A method for manufacturing a honeycomb structured body, comprising:

manufacturing a pillar-shaped honeycomb molded body through molding of a ceramic material, the honeycomb molded body having a structure in which a number of cells are placed in parallel with one another in the longitudinal direction with a partition wall therebetween;

preparing a honeycomb fired body by firing the honeycomb molded body;

manufacturing a honeycomb aggregated body by integrating a plurality of said honeycomb fired bodies with one another by interposing a sealing material paste layer that is formed on the side face of the honeycomb fired body thereafter;

carrying out an end-face drying to dry at least an end face neighborhood of the honeycomb aggregated body by an end-face heating apparatus; and

further drying the entire sealing material paste layer on the side face of said honeycomb fired body,

wherein

said end-face heating apparatus comprises a heating tool, a heating tool translation device and a holding jig, and

said end-face drying comprises;

holding said honeycomb aggregated body with said holding jig;

translating said heating tool with said heating tool translation device thereafter; and

pressing said heating tool against an end face of said honeycomb aggregated body to apply heat to the end face neighborhood of said honeycomb aggregated body so that the sealing material paste layer at the end face neighborhood is dried.

2. The method for manufacturing a honeycomb structured body according to claim 1,

wherein

said end-face heating apparatus comprises two of said heating tools, and

in said end-face drying, the end face neighborhoods of both end faces of said honeycomb aggregated body are simultaneously heated by simultaneously pressing said two heating tools against both of the end faces of said honeycomb aggregated body so that the sealing material paste layers at the end face neighborhoods of both end faces are dried.

3. The method for manufacturing a honeycomb structured body according to claim 1,

wherein

the parallelism with respect to the contact face of said heating tool which contacts the end face of said honeycomb aggregated body is set to about 0.1 mm or less.

4. The method for manufacturing a honeycomb structured body according to claim 1, wherein said heating tool is pressed against the end face of the honeycomb aggregated body at a pressure of at least about 400 N and at most about 600 N.

5. The method for manufacturing a honeycomb structured body according to claim 1, wherein the surface temperature of said heating tool is about 200°

C. or more, but less than about 400°

C.