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Cutting method of honeycomb dried body and honeycomb dried body cutting device

A technology of cutting device and drying body, which is applied in the direction of grinding machines, ceramic molding machines, metal processing equipment, etc., can solve the problems of shedding, increased processing resistance, and abrasive wear of grinding wheels, and achieve the effect of improving efficiency

Active Publication Date: 2012-10-17
NGK INSULATORS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the number of times the grinding wheel is used increases, the sand grains of the grinding wheel will wear, wear off and fall off, resulting in increased processing resistance, which will easily cause the gap
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Method used

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  • Cutting method of honeycomb dried body and honeycomb dried body cutting device
  • Cutting method of honeycomb dried body and honeycomb dried body cutting device
  • Cutting method of honeycomb dried body and honeycomb dried body cutting device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0081] (Example 1) A cordierite-forming raw material, an organic binder, and water were mixed and kneaded to obtain a clay, and the clay was extruded with an extrusion molding machine to form a peripheral wall to obtain a honeycomb formed body. Then, the formed honeycomb body was dried with a dryer to obtain a dried honeycomb body having a cylindrical shape, and the dried honeycomb body 10 which could be cut was obtained. The axial length of the honeycomb drying body 10 is 400 mm, the cross-sectional diameter perpendicular to the axis is 152 mm, the cross-sectional shape of the cells is quadrilateral, and the cell density is 46.5 cells / cm 2 , the thickness of the partition wall is 300 μm.

[0082] In addition, the back component force Pt (cutting resistance) at the time of cutting was obtained in advance, and it was 300 [gf]. In addition, the weight Pw of one cutout portion 10b is 160 [gf]. The sum of the back component force Pt and the weight Pw of the cutout portion is 460...

Example Embodiment

[0084] (Example 2) The dried honeycomb body 10 was cut|disconnected similarly to Example 1 except having made force Pm into 520 [gf]. For three dried honeycomb bodies 10 of the same specification, cutting was carried out under the same conditions, and there was no chipping (no edge chipping) in all three pieces. The result is expressed in Figure 11 middle.

Example Embodiment

[0085] (Example 3) The dried honeycomb body 10 was cut|disconnected similarly to Example 1 except having made force Pm into 1070 [gf]. For three dried honeycomb bodies 10 of the same specification, cutting was carried out under the same conditions, and there was no chipping (no edge chipping) in all three pieces. The result is expressed in Figure 11 middle.

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Abstract

There is disclosed a cutting method of a honeycomb dried body and a honeycomb dried body cutting device in which cracks are not easily generated in the honeycomb dried body, even when a grindstone continues to be used for a long period of time, a cutting speed is raised and a cutting object is a honeycomb dried body having a large diameter. There is provided a cutting method of a honeycomb dried body to cut the honeycomb dried body while applying a force Pm which resists a thrust force Pt required for the cutting and a weight Pw of a cutoff section, to a portion which becomes the cutoff section.

Description

technical field [0001] The invention relates to a method and a device for cutting a honeycomb dry body. Background technique [0002] Considering the impact on the environment, the exhaust system of automobiles is now equipped with filters or catalysts to remove particulates and harmful substances in the exhaust gas. Furthermore, a honeycomb structure is used as a filter element or a catalyst carrier. In particular, regulations for the removal of particulate matter (particulate matter (PM)) discharged from diesel engines tend to be strengthened around the world, and as a filter for removing the PM (diesel particulate filter (DPF)), there is also a A honeycomb structure was used. [0003] The honeycomb structure is a ceramic product, and generally has a cylindrical or square column shape, and has a plurality of cells (has a honeycomb structure) which are divided by partition walls made of a ceramic porous body and serve as gas flow paths. The honeycomb structure is obtaine...

Claims

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Application Information

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IPC IPC(8): B28B11/14
CPCB28B11/12B24B27/0675B24B27/0069
Inventor 伊东祐次竹森洋平渡边敦
Owner NGK INSULATORS LTD
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