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Glass-ceramic tiles and preparation method thereof

A glass-ceramic tile and crystallization technology, applied in the field of ceramics, can solve the problems of natural zircon radiation hazards, heavy metal pollution of lead, single surface texture, etc., achieve high color stability, no radiation and lead hazards, and high transparency Effect

Active Publication Date: 2018-12-28
安徽磐盛新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the crystallite phase of glass-ceramic ceramics is generally CaSiO3 or Zn2SiO4, which has low transparency, single surface texture, and monotonous color; and generally one or more of TiO2, ZrSiO4, ZrO2 and P2O5 are used as crystals. Nucleating agent to promote the formation of crystal nuclei, but natural zircon has radiation hazards, lead has heavy metal pollution, and titanium ore is a harmful ion in ceramics, which is easy to cause ceramic spots, impregnation, etc., so it should be avoided. Nucleating agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation of crystalline frit comprises the following steps: (1), take the following component raw materials by weight: SiO 2 50 parts, Al 2 o 3 20 parts, CaO 22 parts, K 2 O 0.5 parts, MgO 10 parts; (2), mix the weighed raw materials and melt at 1300-1550 ° C to form a uniform glass melt; (3), the glass melt slowly flows into the pool, using high-pressure water flow The falling melt is water-quenched, and after natural cooling, a slag-like crystalline frit is obtained.

Embodiment 2

[0028] A glass-ceramic tile, comprising the following component raw materials in parts by weight: 20 parts of crystalline frit prepared in Example 1, 15 parts of quartz, 8 parts of wollastonite, 25 parts of diopside, and 8 parts of anorthite, Fluorite 6 parts, Co 2 o 3 1.2 parts, 3 parts potassium feldspar, 3 parts clay,

[0029] The preparation method comprises the following steps:

[0030] S1, preparation of powder billet: take the component raw materials of the above-mentioned formula amount as the billet raw material, add water accounting for 35% by weight of the billet raw material, and ball mill for 15 hours to obtain a uniformly mixed slurry, which is dried at 130° C. Obtain the powder blank A of glass-ceramics;

[0031] S2, tablet molding: the powder blank A of the crystallized glass obtained in S1 is pressed and molded, and dried under reduced pressure at 30-50° C. to obtain a blank B;

[0032] S3, initial firing: firing the green body B at 1300°C and keeping it ...

Embodiment 3

[0038] A glass-ceramic tile, comprising the following component raw materials in parts by weight: 10 parts of crystalline frit prepared in Example 1, 3 parts of potassium feldspar, 13 parts of quartz, 10 parts of wollastonite, 10 parts of diopside, 10 parts of anorthite, 5 parts of fluorite, Fe 2 o3 1 part, 5 parts clay,

[0039] The preparation method comprises the following steps:

[0040] S1, preparation of powder billet: take the component raw materials of the above formula amount as the billet raw material, add water accounting for 40% by weight of the billet raw material, and ball mill for 11 hours to obtain a uniformly mixed slurry, which is dried at 150° C. Obtain the powder blank A of glass-ceramics;

[0041] S2, tablet molding: the powder blank A of the crystallized glass obtained in S1 is pressed and molded, and dried under reduced pressure at 35°C to obtain a blank B;

[0042] S3, initial firing: firing the green body B at 1200°C and keeping it warm for 25 hour...

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PUM

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Abstract

The invention discloses glass-ceramic tiles. The tiles are prepared from the following components in parts by weight: 10-25 parts of crystalline frit, 10-20 parts of quartz, 5-10 parts of wollastonite, 10-30 parts of diopside, 5-10 parts of anorthite, 5-10 parts of fluorite, 0-1.5 parts of coloring metal oxide powder, 0-5 parts of feldspar and 0-5 parts of clay. The preparation method comprises the following steps: firstly, preparing a powder blank, then performing sheeting forming, performing primary firing, then performing primary polishing, performing secondary firing and finally performingaftertreatment to obtain the finished glass-ceramic tiles. Microcrystalline phases of various oxides are produced from ceramic raw materials under the high temperature condition, oxides of titanium,zirconium or lead are prevented from being used as crystal nuclei, radiation and lead hazards are prevented, and the glass-ceramic tiles prepared with the multiple-sintering method have the characteristics of high surface compactness, high transparency, rich texture, better hardness and wear resistance and the like; meanwhile, fluorite is used as a fluxing agent and a dyeing assistant agent, so that ceramic is not easy to fade.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a glass-ceramic tile and a preparation method thereof. Background technique [0002] Glass-ceramic ceramics, also known as machinable ceramics, is a mica glass-ceramic with synthetic mica as the main crystal phase, and is a ceramic material that can be machined. Glass-ceramic ceramics have good processing performance, vacuum performance, electrical insulation properties, high temperature resistance, chemical corrosion resistance and other excellent properties. Glass-ceramics have high mechanical strength glass-ceramics, machinable glass-ceramics as well as bioactive glass-ceramics. In the prior art, the crystallite phase of glass-ceramic ceramics is generally CaSiO3 or Zn2SiO4, which has low transparency, single surface texture, and monotonous color; and generally one or more of TiO2, ZrSiO4, ZrO2 and P2O5 are used as crystals. Nucleating agent to promote the formation of crys...

Claims

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Application Information

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IPC IPC(8): C03C10/04C03C10/06
CPCC03C10/0036
Inventor 左明
Owner 安徽磐盛新型材料科技有限公司
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