Method for manufacturing honeycomb structured body and honeycomb structured body

Abstract

A method for manufacturing a honeycomb structured body according to the present invention comprises manufacturing a pillar-shaped honeycomb molded body having a large number of cells longitudinally placed in parallel with one another with a cell wall therebetween; forming a honeycomb fired body by degreasing and firing the honeycomb molded body; and binding a plurality of the honeycomb fired bodies by interposing a sealing material layer, and further comprising: drawing information on a side face of the honeycomb molded body and/or the honeycomb fired body, prior to said binding, said information drawn in form of at least one of a graphic, a symbol, a character, a barcode and a two-dimensional code.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view schematically showing one example of a honeycomb structured body manufactured by the method for manufacturing a honeycomb structured body according to the embodiments of the present invention.

FIG. 2A is a perspective view schematically showing a honeycomb fired body, and FIG. 2B is a cross-sectional view taken along a line A-A in FIG. 2A.

FIG. 3 illustrates a form of a number drawn by a laser marker.

FIG. 4 is a side view schematically showing a process for piling up honeycomb fired bodies to manufacture an aggregate of the honeycomb fired bodies, in a method for manufacturing a honeycomb structured body according to the embodiments of the present invention.

FIG. 5 is a schematic view showing a texture analyzer used in the Examples.

FIG. 6 is a graph that shows the relationship between the ratio (%) of the depth of the imprint and the load (N) at the time of breakage of the honeycomb fired bodies according to Examples 1 to 18.

Claims

1. A method for manufacturing a honeycomb structured body, comprising: manufacturing a pillar-shaped honeycomb molded body having a large number of cells longitudinally placed in parallel with one another with a cell wall therebetween by molding a ceramic material;forming a honeycomb fired body by degreasing and firing said honeycomb molded body; andbinding a plurality of said honeycomb fired bodies by interposing a sealing material layer, and further comprising:drawing information on a side face of said honeycomb molded body and/or said honeycomb fired body, prior to said binding, said information drawn in form of at least one of a graphic, a symbol, a character, a barcode and a two-dimensional code.

2. The method for manufacturing a honeycomb structured body according to claim 1, whereinsaid drawing of information is carried out using a laser marker.

3. The method for manufacturing a honeycomb structured body according to claim 1, whereinsaid drawing of information is carried out by applying an ink to the side face of said honeycomb molded body and/or said honeycomb fired body.

4. The method for manufacturing a honeycomb structured body according to claim 1, whereinsaid drawing of information is carried out by pasting a seal or a label bearing said information.

5. The method for manufacturing a honeycomb structured body according to claim 1, whereinsaid information is drawn on the honeycomb molded body.

6. The method for manufacturing a honeycomb structured body according to claim 1, whereinsaid information drawn in said drawing of information is imprinted at a depth of about 40% or less to a thickness of said cell wall.

7. The method for manufacturing a honeycomb structured body according to claim 1, whereinsaid information drawn in said drawing of information is imprinted at a depth of about 15% or more to a thickness of said cell wall.

8. The method for manufacturing a honeycomb structured body according to claim 1, further comprisingcarrying out extrusion-molding so as to manufacture a honeycomb molded body having a thickness of said cell wall of at least about 0.15 mm and at most about 0.25 mm.

9. The method for manufacturing a honeycomb structured body according to claim 1, whereinsaid drawing of information is carried out using a laser marker so as to imprint said information to said cell wall of a honeycomb molded body at a depth of about 30% or less to the thickness of said cell wall, said cell wall having a thickness of at least about 0.15 mm and at most about 0.25 mm.

10. A honeycomb structured body in which a plurality of pillar-shaped honeycomb fired bodies are bound with one another by interposing a sealing material layer, each of the honeycomb fired bodies having a large number of cells longitudinally placed in parallel with one another with a cell wall therebetween, whereininformation is drawn in form of at least one of a graphic, a symbol, a character, a barcode and a two-dimensional code on a side face of said honeycomb fired body.

11. The honeycomb structured body according to claim 10, whereinsaid information is drawn by a laser marker.

12. The honeycomb structured body according to claim 10, whereinsaid information is drawn by applying an ink to the side face of said honeycomb fired body.

13. The honeycomb structured body according to claim 10, whereinsaid information is drawn by pasting a seal or a label bearing said information.

14. The honeycomb structured body according to claim 10, whereinsaid information is imprinted at a depth of about 40% or less to a thickness of said cell wall.

15. The honeycomb structured body according to claim 10, whereinsaid information is imprinted at a depth of about 15% or more to a thickness of said cell wall.

16. The honeycomb structured body according to claim 10, whereinsaid cell wall has a thickness of at least about 0.15 mm and at most about 0.25 mm.

17. The honeycomb structured body according to claim 10, whereinsaid cell wall has a thickness of at least about 0.15 mm and at most about 0.25 mm, and said information is drawn using a laser marker so as to imprint said information at a depth of about 30% or less to the thickness of said cell wall.