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Composition for preparing high porosity particle trap honeycomb ceramic

A particle trap and honeycomb ceramic technology, applied in the field of honeycomb ceramics manufacturing, can solve the problem of high rejection rate of honeycomb ceramics, and achieve the effect of reducing the risk of cracking, improving the forming performance, and being less susceptible to damage.

Inactive Publication Date: 2008-09-10
北京创导奥福科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical idea of ​​the present invention is to use the characteristics of foamed resin to solve the problem of high waste rate of honeycomb ceramics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The composition for preparing the honeycomb ceramics for the particle trap with high porosity includes the following main components: 33.2 kg of kaolin, 33.2 kg of talc, 16.6 kg of alumina, and 17 kg of polyolefin resin powder.

[0020] The particle diameter of the polyolefin resin powder is 0.1 micron.

Embodiment 2

[0022] The composition for preparing the honeycomb ceramics of the particle trap with high porosity includes the following main components:

[0023] 34 kg of kaolin, 34 kg of talc, 17 kg of alumina, and 15 kg of polyolefin resin powder.

[0024] The particle diameter of the polyolefin resin powder is 1 micron.

Embodiment 3

[0026] The composition for preparing the honeycomb ceramics of the particle trap with high porosity includes the following main components:

[0027] 36 kg of kaolin, 36 kg of talc, 18 kg of alumina, and 10 kg of polyolefin resin powder.

[0028] The particle diameter of the polyolefin resin powder is 10 microns.

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Abstract

The invention belongs to a manufacturing technology of honeycomb ceramics and aims to provide a compound used to prepare high-porosity granule trap honeycomb ceramics. The compound generates less heat during the burning stage of honeycomb ceramics, thereby reducing the reject rate of the honeycomb ceramics. Moreover, the compound is characterized in that: the compound comprises foaming resin powder, wherein the diameter of foaming resin granule is 0.1 micron to 30 micron; the weight of foaming resin occupies 0.4 to 17 percent of that of the inorganic matters in the entire compound.

Description

technical field [0001] The invention belongs to the manufacturing technology of honeycomb ceramics, in particular to the manufacturing technology of honeycomb ceramics with certain pore size and porosity. Background technique [0002] The raw material composition used in the preparation of the honeycomb ceramics for the particle filter with high porosity needs to include a pore-forming agent to form pores in the honeycomb ceramics. At present, spherical graphite and / or flour are often used as pore-forming agents. Using graphite or flour as a pore-forming agent currently has the following problems, that is, these two substances produce a large amount of heat under high temperature conditions, which easily causes cracking of the honeycomb ceramics during the firing stage, directly reducing the yield of the honeycomb ceramics . Contents of the invention [0003] The object of the present invention is to provide a composition for preparing honeycomb ceramics for particle tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B38/08C04B35/632
Inventor 黄妃慧
Owner 北京创导奥福科技发展有限公司
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