Cutting method of honeycomb formed body

Patent metadata

Field	Value
Publication number	US-9238308-B2
Application number	US-201414519653-A
Country	US
Kind code	B2
Filing date	Oct 21, 2014
Priority date	Mar 29, 2013
Publication date	Jan 19, 2016
Grant date	Jan 19, 2016

Abstract

A cutting method of a honeycomb formed body is provided. This is a cutting method of a honeycomb formed body in which, while a kneaded material containing a ceramic raw material is extruded to form a honeycomb formed body with a honeycomb shape having partition walls defining and forming a plurality of cells, the extruded honeycomb formed body is cut before drying by a cutting blade vibrated at a frequency of 0.3 kHz or more in a direction perpendicular to a direction in which this honeycomb formed body moves. It is preferably a cutting method of a honeycomb formed body in which the cutting blade is vibrated at a high frequency of 10 kHz or more.

First claim

The invention claimed is:

1. A cutting method of a honeycomb formed body, wherein, while a kneaded material containing a ceramic raw material is extruded to form a honeycomb formed body having partition walls defining and forming a plurality of cells and having a honeycomb shape, the extruded honeycomb formed body is cut before drying by a single cutting blade vibrated at a frequency of 0.3 kHz or more in a direction perpendicular to a direction in which the honeycomb formed body moves, wherein an extrusion speed of the honeycomb formed body and a component of the moving speed of the cutting blade in a direction in parallel with a direction in which the cells of the honeycomb formed body extend are equal.

2. The cutting method of a honeycomb formed body according to claim 1 , wherein
the cutting blade is vibrated at a high frequency of 10 kHz or more.

3. The cutting method of a honeycomb formed body according to claim 1 , wherein
the cutting blade is vibrated with amplitude of vibration at 15 to 40 μm in the direction perpendicular to the direction in which the honeycomb formed body moves.

4. The cutting method of a honeycomb formed body according to claim 1 , wherein
a thickness of the cutting blade is 0.6 mm or less.

5. The cutting method of a honeycomb formed body according to claim 1 , wherein
vertical vibration which is vibration in the direction perpendicular to the direction in which the honeycomb formed body moves, and lateral vibration which is vibration in a direction in parallel with the direction in which the honeycomb formed body moves are included; and the cutting blade is vibrated with amplitude of the lateral vibration at 30 μm or more.

6. The cutting method of a honeycomb formed body according to claim 1 , wherein
a width of the cutting blade is 5 to 30 mm.

7. The cutting method of a honeycomb formed body according to claim 1 , wherein
the cutting blade is vibrated at an output of 50 W or more.

8. The cutting method of a honeycomb formed body according to claim 1 , wherein
while the kneaded material is extruded in a horizontal direction to form the honeycomb formed body, the extruded honeycomb formed body is cut so that a section in a direction orthogonal to the direction in which the cells of the honeycomb formed body extend is formed by the cutting blade.

9. The cutting method of a honeycomb formed body according to claim 1 , wherein
a component of a moving speed of the cutting blade in a direction orthogonal to the direction in which the cells of the honeycomb formed body extend is 10 to 100 mm/second.

10. The cutting method of a honeycomb formed body according to claim 1 , wherein
a thickness of the partition walls of the honeycomb formed body is 50 to 300 μm.

11. The cutting method of a honeycomb formed body according to claim 1 , wherein
as the cutting blade, a cutting blade of a material of stainless steel, quenched stainless steel or carbon steel is used.

12. The cutting method of a honeycomb formed body according to claim 1 , wherein
the cutting blade has two end portions that are supported by a support member connected to a vibrator generating vibration at a frequency of 0.3 kHz or more.

Assignees

• Ngk Insulators Ltd

Inventors

• Toba Keisuke
• Okumura Kensuke
• Hayashi Seiichiro

Classifications

• B28D5/047 Primary

  by ultrasonic cutting (using abrading substances or abrading tools subjected to a bouncing action by ultrasonic energy B24B1/04) · CPC title

• B28B11/163

  in which the cutting device is moved longitudinally with the moving strand · CPC title

• B28D1/02 Primary

  by sawing · CPC title

• B26D1/08

  of the guillotine type · CPC title

• B26D3/16

  Cutting rods or tubes transversely {(cutting tubes longitudinally B26D3/001)} · CPC title