Preparation method of honeycomb ceramic mud blank

A technology for honeycomb ceramics and clay blanks, which is applied to the improvement field of honeycomb ceramic clay blanks preparation technology, can solve the problems of multi-component dispersed component segregation, low solid phase volume fraction, etc., and achieves wide application, easy process and simple operation. Effect

Active Publication Date: 2007-01-03
BEIJING AVIATION MATERIAL INST NO 1 GRP CORP CHINA AVIATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is: to propose a method for preparing honeycomb ceramics mud - water-based slurry mud method, which can not only overcome the problem of component segregation caused by the uneven dispersion of multi-components in traditional mud refining, but also overcome the traditional The problem of low solid volume fraction in mud refining

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Preparation of cordierite honeycomb ceramic mud body.

[0022] According to the theoretical composition of cordierite, aluminum oxide, kaolin, talcum powder and magnesium carbonate powder were weighed. Add water according to the solid phase volume fraction of 56vol%, add 2ml polyacrylic acid ammonium per 100 grams of powder, the ball material ratio is 1.2:1, add into the ball mill tank together and mix. Mix by ball milling for 12 hours to obtain ceramic slurry, pour the slurry into a container, add hydroxyethyl fiber in an amount of 2 grams per 100 grams of ceramic powder under stirring, and mix evenly, add tung oil after making mud (According to the amount of adding 5 grams per 100 grams of ceramic powder), then put it into a mud mixer for mixing, continuously mix twice, then seal it tightly with a plastic film, and put it in a constant temperature and humidity box to age.

Embodiment 2

[0023] Example 2: Preparation of mullite honeycomb ceramic mud body.

[0024] According to the theoretical composition of mullite, kyanite (or andalusite, sillimanite), alumina, and kaolin powder are weighed. Add water according to the solid phase volume fraction of 55vol%, add 2ml of acrylic acid-acrylic resin binary copolymer per 100 grams of powder, the ratio of ball to material is 1.5:1, and add them into the ball mill jar for mixing. Mix by ball milling for 8 hours to obtain ceramic slurry, pour the slurry into a container, add methyl cellulose in an amount of 1.5 grams per 100 grams of ceramic powder under stirring, and mix evenly, add castor Sesame oil (according to the amount of adding 4 grams per 100 grams of ceramic powder), then put into the mud mixer for mixing, continuously mix twice, then seal it tightly with plastic film, and put it in a constant temperature and humidity box for aging.

Embodiment 3

[0025] Example 3: Preparation of cordierite-mullite honeycomb ceramic mud body.

[0026] According to a certain ratio, the pre-synthesized cordierite and fused mullite powders are weighed. Add water according to the solid phase volume fraction of 57vol%, add 1.5ml of acrylic acid-acrylic resin binary copolymer per 100 grams of powder, the ratio of ball to material is 1.7:1, and add them into the ball mill jar for mixing. Mix by ball milling for 5 hours to obtain ceramic slurry, pour the slurry into a container, add hydroxypropyl cellulose in an amount of 1.5 grams per 100 grams of ceramic powder under stirring, mix well, and add Peanut oil (according to the amount of adding 5 grams per 100 grams of ceramic powder), then put it into a mud mixer for mixing, continuously mix it twice, then seal it tightly with a plastic film, and put it in a constant temperature and humidity box for aging.

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Abstract

A process for preparing cellular ceramic blank includes such steps as proportionally mixing raw materials, adding water and disperser, ball grinding, adding thickening agent and lubricant, stirring and moulding.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials and relates to the improvement of the preparation technology of honeycomb ceramic mud body. Background technique [0002] Honeycomb ceramics are an important part of structural ceramics. Due to its special structure, it is widely used in industrial chemical processing such as automobile exhaust purification, metal melt filtration, ozone conversion, diesel particle filtration, ultrafine particle filtration, catalytic combustion, and heat exchange. At present, the international general method of forming honeycomb ceramics is: extrusion forming. However, the premise of extrusion is to prepare high-performance plastic ceramic mud. The performance of the mud billet directly affects the extrusion effect and the performance of the final honeycomb ceramic product. Therefore, the preparation of ceramic mud in extrusion molding is the key. It is an important aspect of the development of h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/622C04B35/632C04B35/16C04B38/00
Inventor 仝建峰陈大明刘晓光李宝伟华文君
Owner BEIJING AVIATION MATERIAL INST NO 1 GRP CORP CHINA AVIATION IND
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