Technique of preparing microcrystalline glass-ceramic composite board by one-step firing process

A preparation process and technology of glass-ceramics, which are applied in the field of architectural decoration, can solve the problems of low content of glass-ceramics, poor decoration effect, and high energy consumption in production, and achieve the advantages of reducing pore defects, reducing raw material costs, and low raw material costs. Effect

Inactive Publication Date: 2009-01-07
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the high production energy consumption of the active secondary firing process, serious porosity defects in the existing cloth-type primary firing process, low glass-ceramic phase content and poor decorative effect in the existing press-embedded primary firing pro

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation process of a glass-ceramic-ceramic composite plate fired once, comprising the steps of:

[0034] (1) Preparation of ceramic powder: the preparation process of ordinary ceramic powder is adopted. Using conventional ceramic raw materials, the raw material ratio (expressed in mass percentage) is: 39.0% feldspar, 13.0% quartz sand, 45.0% clay, 3.0% talc, and the chemical composition of the raw material batch (expressed in mass percentage) is: 68.50% SiO 2 , 18.70%Al 2 o 3 , 0.40% CaO, 0.80% MgO, 1.90% K 2 O; 2.60% Na 2 O, 0.40%TFe 2 o 3 , 0.10%TiO 2 , loss on ignition 6.30%, and other 0.30%; each raw material is weighed according to the formula, put into a ball mill, and wet ball milled until the particle size is 4% of the remaining 4% of the sieve; the slurry is granulated by spray drying to obtain a moisture content of 6 %, the particle size range is 20-150 mesh granular ceramic material, which is used as ceramic powder for standby;

[0035] (2) Pre...

Embodiment 2

[0042] A preparation process of a glass-ceramic-ceramic composite plate fired once, comprising the steps of:

[0043] (1) preparation of ceramic powder: same as embodiment 1;

[0044] (2) Preparation of ceramic dry powder: same as Example 1;

[0045] (3) Preparation of mother glass particles: same as Example 1;

[0046] (4) pretreatment of mother glass particles: same as embodiment 1;

[0047] (5) Cloth and compact: evenly spread the mother glass particles whose surface is wrapped by ceramic material on the bottom of the mold cavity of the brick press, and the cloth volume is 4kg / m 2 Then inject the ceramic powder prepared in the step (1) and fill the mold cavity of the brick press, and under the pressure of 40MPa, the ceramic powder together with the mother glass particles are compressed into a composite plate with the mother glass particles on the surface green body;

[0048] (6) drying and firing: same as Example 1;

[0049] (7) Grinding and polishing treatment: using ...

Embodiment 3

[0051] A preparation process of a glass-ceramic-ceramic composite plate fired once, comprising the steps of:

[0052] (1) preparation of ceramic powder: same as embodiment 1;

[0053] (2) Preparation of ceramic dry powder: same as Example 1;

[0054] (3) Preparation of mother glass particles: same as Example 1;

[0055] (4) pretreatment of mother glass particles: same as embodiment 1;

[0056] (5) Cloth and compact: evenly spread the mother glass particles whose surface is wrapped by ceramic material on the bottom of the mold cavity of the brick press, and the cloth volume is 1.2kg / m 2 Then inject the ceramic powder prepared in the step (1) and fill the mold cavity of the brick press, and under the pressure of 40MPa, the ceramic powder together with the mother glass particles are compressed into a composite plate with the mother glass particles on the surface green body;

[0057] (6) drying and firing: same as Example 1;

[0058] (7) Grinding and polishing treatment: using ...

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PUM

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Abstract

The invention relates to a method for preparing an architectural decoration used nucleated glass-ceramic composite board. The method is a preparation process of single firing of the nucleated glass-ceramic composite board, which is characterized in that the method comprises the steps of: (1) preparing ceramic powder; (2) preparing dry ceramic powder; (3) preparing master glass granule; (4) pretreating the master glass granule: the master glass granule and sodium cellulose glycolate solution are mixed according to the mass ratio of 1:0.02 to 1:0.1 before the dry ceramic powder and the master glass granule are mixed according to the mass ratio 1:4 to 1:8; (5) distribution and compaction: the master glass granule covered with ceramic is uniformly distributed at the bottom of the die cavity of a brick press at 1.2 to 4kg per m<2> before the ceramic powder is filled in the die cavity of the brick press, thus extruding the green compact of the composite board; (6) drying and burning; (7) polishing and treating. The method has the advantages of low consumption of productive energy, few pore defects of the products, high content of nucleated glass phase in the surface of the composite board, and good ornamental effect.

Description

technical field [0001] The invention relates to a preparation process of a once-fired glass-ceramic-ceramic composite board, which is mainly used for architectural decoration. Background technique [0002] Glass-ceramics has excellent properties such as compact structure, high mechanical strength, wear resistance, corrosion resistance, and strong weathering resistance, and can be used as high-grade building decoration materials. However, the manufacturing cost of the glass-ceramic plate of the whole body is very high; and using glass-ceramics as the surface finish layer, or mixing glass-ceramics and ceramics as the surface finish layer, and using ordinary ceramics as the bottom support layer, the Forming a glass-ceramic-ceramic composite plate is conducive to greatly reducing manufacturing costs and is conducive to large-scale industrial production. According to the number of heat treatments in the production process of glass-ceramic-ceramic composite panels, the process of...

Claims

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Application Information

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IPC IPC(8): C04B37/04
Inventor 周俊王焰新
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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