Honeycomb structure, and method for manufacturing same

A honeycomb structure and honeycomb structure technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve problems such as difficult identification of honeycomb structures, and achieve the effects of good readability and easy manufacturing

Inactive Publication Date: 2021-09-28
NGK INSULATORS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to recognize these honeycomb structures by visual observation based on the appearance shape, etc.

Method used

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  • Honeycomb structure, and method for manufacturing same
  • Honeycomb structure, and method for manufacturing same
  • Honeycomb structure, and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Add molding aids, pore-forming materials and water to the silicon carbide-metal silicon raw material powder obtained by mixing silicon carbide: metal silicon = 80:20 after firing, mix and knead to prepare a billet.

[0100] Next, the obtained billet was molded using a vacuum extrusion molding machine to produce 16 quadrangular column-shaped honeycomb molded bodies.

[0101] Next, the obtained formed honeycomb body was dried by high-frequency dielectric heating, and then dried at 120° C. for 2 hours using a hot air dryer.

[0102] Next, a plugged portion is formed on the dried formed honeycomb body. Specifically, first, a mask is applied to the first end surface of the formed honeycomb body so as to cover predetermined cells. Next, the end of the first end surface side of the honeycomb formed body with the mask applied is immersed in the plugging slurry containing the raw material of the plugging material for forming the plugged part, and the remaining cells without the...

Embodiment 2～16 and comparative example 1～10

[0121] In the preparation of the outer peripheral coating material, the compounding ratio of the aggregate particles was changed as shown in Table 1 (out of a total of 75 parts by mass), and the same method as in Example 1 was used to prepare the samples of Examples 2 to 16 and Comparative Examples 1 to 10. honeycomb structure. Ten honeycomb structures of Examples 2 to 16 and Comparative Examples 1 to 10 were also produced. In Examples 12 to 16, titanium oxide particles were added as aggregate particles to prepare outer peripheral coating materials. Specifically, in Example 12, 5 parts by mass of titanium oxide particles were used. In Examples 13, 15, and 16, 10 parts by mass of titanium oxide particles were used. In Example 14, 15 parts by mass of titanium oxide particles were used.

[0122] In addition, in each of the Examples and Comparative Examples, the shear stress (Pa) of the outer peripheral coating material was changed as shown in Table 1 during the preparation of ...

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Abstract

Provided is a honeycomb structure capable of improving the readability of printed characters and symbols. The honeycomb structure comprises a tubular honeycomb structure part 10 provided with porous partition walls 1 that are disposed so as to surround a plurality of cells 2 extending from a first end face 11 to a second end face 12, and an outer peripheral coating layer 20 formed of an outer coating material that is applied to at least a part of the outer periphery of the honeycomb structure part 10, wherein: the outer peripheral coating layer 20 is provided, on the surface thereof, with a printing area 21 to be printed; the printing area 21 has a lightness (L) in the L*a*b* color space specified by the International Commission on Illumination (CIE) of 35 or more; and the surface roughness Ra of the printing area 21 is not more than 30 [mu]m.

Description

technical field [0001] The present invention relates to a honeycomb structure and its manufacturing method. More specifically, it relates to a honeycomb structure provided with a peripheral coating layer having a display region for displaying on its surface, and a method for manufacturing the same. Background technique [0002] Conventionally, ceramic honeycomb structures have been used in a wide range of applications such as catalyst carriers for purifying automobile exhaust, purification filters for removing particulate matter in exhaust, and heat storage bodies for combustion devices. For example, the honeycomb structure includes porous partition walls arranged to surround a plurality of cells extending from a first end surface as one end surface to a second end surface as the other end surface. [0003] In recent years, honeycomb structures are frequently used for various purposes and objects of use, and a large number of honeycomb structures are produced according to t...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C04B38/00C04B41/85
CPCC04B41/89C04B41/009C04B41/52C04B2111/80B01D46/2425B01D46/2444C04B38/0012C04B35/565C04B2111/00793C04B2111/0081C04B35/573C04B35/62655C04B35/638C04B2235/428C04B2235/6021C04B2235/658C04B2235/5436C04B2235/5472C04B2235/3217C04B2235/3232C04B2235/3481C04B2235/3418C04B2235/5454C04B35/62222C04B2235/963B01J35/04C04B38/0006C04B41/5024C04B41/5031C04B41/5035C04B41/5041C04B41/5089C04B41/0036C04B41/4535C04B41/4572C04B35/10C04B35/185C04B35/19C04B35/195C04B35/478C04B35/584C04B38/0074B01D46/0001B01D46/009B01D46/2455B01D53/9454B01D2255/9155B01D2279/30B01J33/00B01J37/0215C04B41/4545C04B41/5059C04B41/87
Inventor铃木裕明
OwnerNGK INSULATORS LTD