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Polymorphic microcrystalline glass ceramic composite board and preparation method thereof

A technology of glass-ceramics and glass-ceramic frit, applied in the field of building materials, can solve the problems of strict firing control, low production cost, and single crystal form of glass-ceramic composite plates

Inactive Publication Date: 2013-10-23
广东高微晶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production cost of this method is low, the product quality is high, and the appearance effect is good, but the crystal form of the glass-ceramic composite plate obtained by it is single, the pattern effect is monotonous, and the firing control is strict.

Method used

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  • Polymorphic microcrystalline glass ceramic composite board and preparation method thereof
  • Polymorphic microcrystalline glass ceramic composite board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] 1.1 According to the formula of crystallized frit: 45.5 parts by weight of SiO 2 , 14.5 parts by weight Al 2 o 3 , 17.2 parts by weight of CaO, 6.45 parts by weight of MgO, 4.73 parts by weight of BaO, 4.64 parts by weight of ZrO 2 , 4.13 parts by weight of Na 2 O+K 2 O+Li 2 O, select the corresponding proportion of quartz, feldspar, barium carbonate, alumina, soda ash, dolomite, talc and zirconium silicate to mix, then add 2.85 parts by weight of composite clarifying agent, melt in the furnace at 1560 ° C, after clarification The solution is water-quenched, dried and crushed, and then sieved into crystalline frits with a particle size of 10-80 meshes.

[0059] 1.2 According to the formula of high barium frit: 58.72 parts by weight of SiO 2 , 11.84 parts by weight of Al 2 o 3 , 14.87 parts by weight of BaO, 11.60 parts by weight of Na 2 O+K 2 O, 0.85 parts by weight of CaO, select the corresponding proportion of quartz, feldspar, barium carbonate, alumina, sod...

Embodiment 2

[0067] 2.4 Mix the crystalline frit obtained in 1.1, the high-barium frit obtained in 1.2, and the high-tin frit obtained in 1.3 according to the mass ratio of 90:7:3, and spread them on the ceramic slab ( Expansion coefficient is 50℃~500℃, 7.0~8.5×10 -6 / ℃), the spreading weight is 10kg / m 2 , then spray the fixative, and burn according to the following kiln firing curve: heat up from 850°C to 1000°C at a heating rate of 30°C / min, keep the temperature for 8 minutes, a total of 13 minutes; heat up from 1000°C at a heating rate of 20°C / min To 1200°C, keep warm for 10min, 20min in total; from 1200°C to 1260°C at a heating rate of 10°C / min, keep warm for 10min, 16min in total; semi-finished products are obtained after firing.

[0068] 2.2 Cool, polish and edge-grind the semi-finished product obtained in 2.1 to obtain a glass-ceramic composite plate.

[0069] figure 2 It is a photo of the glass-ceramic composite plate obtained in 1.5.

[0070] The glass-ceramic plate obtained ...

Embodiment 3

[0073] 3.1 Mix the crystalline frit obtained in 1.1, the high-barium frit obtained in 1.2, and the high-tin frit obtained in 1.3 according to the mass ratio of 87:10:3, and spread them on the ceramic slab ( Expansion coefficient is 50℃~500℃, 7.0~8.5×10 -6 / ℃), the spreading weight is 10kg / m 2 , then spray the fixative, and burn according to the following kiln firing curve: heat up from 850°C to 1000°C at a heating rate of 30°C / min, keep warm for 5 minutes, a total of 10 minutes; heat up from 1000°C at a heating rate of 20°C / min To 1200°C, keep warm for 15min, 25min in total; from 1200°C to 1260°C at a heating rate of 10°C / min, keep warm for 8min, 14min in total; semi-finished products are obtained after firing.

[0074] 3.2 Cooling, polishing and edging the semi-finished product obtained in 3.1 to obtain a glass-ceramic composite board.

[0075] The glass-ceramic plate obtained in 3.2 was tested, and its breaking strength was greater than 40MPa, and its Mohs hardness was 7.0...

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Abstract

The invention provides a polymorphic microcrystalline glass ceramic composite board and a preparation method thereof. According to the invention, microcrystalline glass frits are distributed on a ceramic blank board, then a fixing agent is sprayed, furnace transmutation sintering technology is used for sintering so as to obtain a semi-finished product, and cooling, polishing and edging are carried out so as to obtain the polymorphic microcrystalline glass ceramic composite board. The microcrystalline glass frits comprise crystalline frits and high-barium frits. Compared with the prior art, the invention has the following advantages: a mixture of the crystalline frit and the high-barium frit is used as the microcrystalline glass frit, the furnace transmutation sintering technology is used for sintering, differences of the crystalline frit and the high-barium frit in the aspects of surface tension and viscosity in different temperature ranges are utilized, the processes of softening, crystallization and melt flowing of the crystalline frit and the high-barium frit are mutually superposed, so a crystal flower pattern with a large size is formed and rich furnace transmutation effects are created; after mixing of the high-barium frit and the crystalline frit, a wide fluxing range is obtained, so surface tension of microcrystalline glass can be increased, viscosity can be reduced, and a microcrystalline melt is allowed to have good fluidity and bubble discharging performance.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a polycrystalline glass-ceramic composite plate and a preparation method thereof. Background technique [0002] Glass ceramics, also known as glass ceramics, is a composite material of microcrystals and glass phases. It has both some properties of glass and some properties of crystals. It combines the characteristics of both, and not only has a thermal expansion coefficient It has very small performance, and also has high hardness and wear-resistant mechanical properties. It also has the advantages of high gloss, low water absorption, no color difference, no harmful substances to the human body, strong stain resistance, and wide application range. However, the production cost of glass-ceramics is relatively high, and the market demand is limited to the high-end decoration market, and rarely enters the ordinary decoration market. [0003] With the continuou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00C03C10/04
Inventor 吴启章冯义涛余罗群
Owner 广东高微晶科技有限公司
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