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Production method of porous ceramic composite tiles

A technology for porous ceramics and composite bricks, which is applied in the field of ceramic brick manufacturing, can solve the problems of high production cost, high energy consumption, and many equipment, and achieve the effect of reducing production and processing procedures, reducing energy consumption and production cost, and having strong bonding force.

Active Publication Date: 2013-02-06
佛山中科产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the many differences in production technology between porous ceramics and non-porous ceramics, especially the difference in shrinkage and expansion when the product is fired, it is difficult for the two types of ceramic materials to be composited and fired together at one time. The two types of ceramics are compounded into one body through adhesives. In this way, there are problems of high energy consumption, complicated process, many equipments, and high production costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A method for preparing a porous ceramic composite brick, the ceramic composite brick is suitable for exterior walls, the steps include:

[0043] a. Preparation of ordinary ceramic brick blanks: mineral raw materials such as clay, quartz, and low-temperature sand are used to prepare ordinary ceramic tile blanks. The chemical composition of the ordinary ceramic tile blanks is as follows (wt%):

[0044] SiO2 69.02

[0045] Al2O3 17.89

[0046] CaO 1.66

[0047] MgO 1.18

[0048] K2O 5.20

[0049] Na2O 3.93

[0050] Fe2O3 0.59

[0051] TiO2 0.53.

[0052] The ingredients are ball milled with water, dried, granulated, and ready to be shaped for later use.

[0053] b. Preparation of porous ceramic brick blanks: on the basis of the above-mentioned common ceramic brick blanks, add 35 parts of flour and 0.2 parts of silicon carbide in a weight ratio of 100 parts of common ceramic brick blanks, mix with water, ball mill, dry, and granulate. Ready to be formed.

[0054] c. ...

Embodiment 2

[0056] A method for preparing a porous ceramic composite brick, the composite brick can also be polished to form a polished brick after firing, the steps include:

[0057] a. Preparation of ordinary ceramic brick blanks: mineral raw materials such as clay, quartz, and low-temperature sand are used to prepare ordinary ceramic tile blanks. The chemical composition of the ordinary ceramic tile blanks is as follows (wt%):

[0058] SiO2 71.62

[0059] Al2O3 18.56

[0060] CaO 0.59

[0061] MgO 1.39

[0062] K2O 3.15

[0063] Na2O 3.86

[0064] Fe2O3 0.39

[0065] TiO2 0.44.

[0066] The ingredients are ball milled with water, dried, granulated, and ready to be shaped for later use.

[0067] b. Preparation of porous ceramic brick blanks: on the basis of the above-mentioned common ceramic brick blanks, add 20 parts of flour, 20 parts of corn flour, 0.1 part of silicon carbide, and 0.2 parts of boron nitride by weight in 100 parts of ordinary ceramic brick blanks Mixed, ball m...

Embodiment 3

[0070] A method for preparing porous ceramic composite bricks, the composite bricks can be used to prepare wood grain bricks, the steps include:

[0071] a. Preparation of ordinary ceramic brick blanks: mineral raw materials such as clay, quartz, and low-temperature sand are used to prepare ordinary ceramic tile blanks. The chemical composition of the ordinary ceramic tile blanks is as follows (wt%):

[0072] SiO2 67.38

[0073] Al2O3 16.19

[0074] CaO 3.73

[0075] MgO 2.30

[0076] K2O 4.05

[0077] Na2O 3.86

[0078] Fe2O3 1.19

[0079] TiO2 1.30.

[0080] The ingredients are ball milled with water, dried, granulated, and ready to be shaped for later use.

[0081] b. Preparation of porous ceramic brick blanks: on the basis of the above-mentioned common ceramic brick blanks, add 30 parts of sweet potato flour, 15 parts of carbon powder, 10 parts of starch, 3 parts of yeast, and 0.3 parts of carbonization to 100 parts of ordinary ceramic brick blanks Silicon, mixed w...

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Abstract

Disclosed is a production method of porous ceramic composite tiles. The production method includes steps of blending of raw materials of existing ceramic tiles, ball milling, spray drying, forming by dry pressing or extruding, drying again, decorating, high-temperature sintering, edge finishing and the like. Particularly, porous ceramic and non-porous ceramic are composited during forming and are subjected to one-step co-firing, blank firing shrining agents and foaming agents are contained in a raw material formula of the porous ceramic, and in the porous ceramic blank, the general ceramic tile blank accounts for 100 parts of the total weight, the blank firing shrinking agents account for 20-150 parts of the total weight, and the foaming agents account for 0.03-20 parts. As the porous ceramic layer and the non-porous ceramic layer are composited in the forming stage and then fired in a kiln at one step, energy consumption for one more firing can be reduced, and required porous composite ceramic products with unique and excellent performance can be produced.

Description

technical field [0001] The invention relates to the technical field of ceramic brick manufacturing, in particular to a preparation method of porous ceramic composite bricks. Background technique [0002] Porous ceramics are ceramic materials with relatively high porosity. The pores in ceramics are divided into open pores and closed pores. According to the requirements of ceramic applications, the proportion of these two types of pores is different. For applications such as chemical catalyst carrier, filtration and separation, penetration, moisture absorption, air absorption, sound absorption and wave-absorbing invisibility, the pores in ceramics are mainly open pores. For applications such as thermal insulation, sound insulation, and lightweight building materials, the pores in ceramics are mainly closed pores. [0003] At present, the preparation technology of porous ceramics mainly includes: foaming process, adding pore forming agent process, organic foam impregnation pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B35/14C04B35/622
Inventor 蔡晓峰于伟东冯裕普
Owner 佛山中科产业技术研究院
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