Vacuum honeycomb ceramic body

A honeycomb ceramic body and a technology of honeycomb ceramics, applied in the field of honeycomb ceramic materials, can solve the problems of reducing the thermal insulation performance of the honeycomb ceramic body, reducing the thermal insulation performance of the honeycomb ceramic body, shortening the service life of the honeycomb ceramic body, etc., and achieving cost saving and light weight. , the effect of low cost

Inactive Publication Date: 2009-10-28
姚光纯
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the manufacturing process of honeycomb ceramics, the honeycomb holes at both ends of the honeycomb ceramic body are open. When using honeycomb ceramics as a thermal insulation carrier, air can easily enter the honeycomb from the gap between the two ends of the stacked honeycomb ceramics. In the pores of the ceramic body, air acts as a heat-conducting medium to form thermal convection with the outside world, which reduces the thermal insulation performance of the honeycomb ceramic body and affects the indoor air quality; In the ceramic body, as the working time at high temperature increases, not only the thermal insulation performance of the honeycomb ceramic body is reduced, but also the hole wall sheets in the honeycomb ceramics are thermally deformed due to high temperature, and even crack, break and fall off, which damages the honeycomb ceramic body. The service performance of the ceramic body shortens the service life of the honeycomb ceramic body

Method used

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  • Vacuum honeycomb ceramic body
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Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1, the vacuum honeycomb ceramic body is in the shape of a cuboid and is manufactured according to the following steps:

[0020] (1) adding bauxite, kaolin, talc, feldspar and organic cellulose in a ball mill in proportion to ball milling for 3 hours to form a powder,

[0021] (2) Add the powder into the kneader and add an appropriate amount of water and tung oil to knead to form mud,

[0022] (3) Put the mud material into staleness for 24 hours and use a mud trainer to train the mud to form a mud section,

[0023] (4) Put the mud section into the mold of the press, and press to form a 150×150×300mmmm honeycomb ceramic wet body,

[0024] (5) Put the wet billet into the drying room, and dry it at a temperature of 60-120°C to form a semi-dry billet.

[0025] (6) Put the semi-dry green body into the kiln and fire it into a cordierite honeycomb ceramic body at a temperature of 1350°C.

[0026] (7) Put the honeycomb ceramic body into a vacuum box with a vacuum degr...

Embodiment 2

[0028] Embodiment 2, the vacuum honeycomb ceramic body is in the shape of a cube, and is manufactured according to the following method steps:

[0029] (1) Add bauxite, clay, alumina powder, quartz powder, feldspar and organic cellulose in proportion to ball milling in a ball mill for 3.5 hours to form a powder,

[0030] (2) Add the powder into the kneader and add an appropriate amount of water and engine oil to knead to form a mud,

[0031] (3) Put the mud material into staleness for 24 hours and use a mud trainer to train the mud to form a mud section,

[0032] (4) Put the mud section into the mold of the press, and press to form a 150×150×300mm honeycomb porcelain wet billet.

[0033] (5) Put the wet billet into the drying room, and dry it at a temperature of 60-120°C to form a semi-dry billet.

[0034] (6) Put the semi-dry green body into the kiln, and fire it at a temperature of 1250°C to make a mullite honeycomb ceramic body,

[0035] (7) Place the honeycomb ceramic b...

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Abstract

The invention discloses a vacuum honeycomb ceramic body, which is produced according to method with the following steps: adding various raw materials for formulating honeycomb ceramic proportionally into the ball mill for ball milling and forming into powder, kneading for forming into pug, ageing and pugging pug for forming into mud segment, adding mud segments into press for forming honeycomb ceramic wet blank, placing wet blank into drying room, drying and shaping at 60-120 DEG C for forming into semi-dried blank body, burning into honeycomb ceramic body at 1200-1500 DEG C, placing honeycomb ceramic body into a vacuum box with vacuum degree 4-9 KPa for executing vacuum treatment, using material identical to honeycomb ceramic under vacuum state for sealing two terminals of honeycomb ceramic body, and then drying, executing secondary burning for forming into a vacuum honeycomb ceramic body under 1200-1500 DEG C. The heat insulation and heat preservation performances of the vacuum honeycomb ceramic body provided by the invention increases to 50-80 times of that of cavity brick, and the mass reduces 50-70%. The product provided by the invention not only has the advantages of lower thermometric conductivity, but also has light quality, low cost, saving raw material, reduced building load and saving building items investment.

Description

technical field [0001] The invention relates to a honeycomb ceramic material, in particular to a vacuum honeycomb ceramic body. Background technique [0002] As we all know, honeycomb ceramics are widely used in industrial, construction, petrochemical, aerospace, electronics and other technical fields due to their low thermal conductivity, light weight, and good thermal insulation performance. However, due to the limitation of the manufacturing process of honeycomb ceramics, the honeycomb holes at both ends of the honeycomb ceramic body are open. When using honeycomb ceramics as a thermal insulation carrier, air can easily enter the honeycomb from the gap between the two ends of the stacked honeycomb ceramics. In the pores of the ceramic body, air acts as a heat-conducting medium to form thermal convection with the outside world, which reduces the thermal insulation performance of the honeycomb ceramic body and affects the indoor air quality; In the ceramic body, as the wor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B35/622
Inventor 姚光纯张玉华
Owner 姚光纯
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