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Microcrystal ceramic composite board as well as blank and preparation method of microcrystal ceramic composite board

A technology for microcrystalline ceramics and composite slabs is applied in the field of microcrystalline ceramic composite slab blanks to achieve the effects of improving the process, increasing the rate of superior products, and alleviating the mismatch of expansion/contraction coefficients.

Active Publication Date: 2015-07-01
FOSHAN SHI WAN YING BRAND CERAMICS CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the problem of matching the linear expansion coefficients of the green body and the frit, the invention provides a microcrystalline ceramic composite plate blank, a microcrystalline ceramic composite plate sintered from the blank and a preparation method thereof

Method used

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  • Microcrystal ceramic composite board as well as blank and preparation method of microcrystal ceramic composite board
  • Microcrystal ceramic composite board as well as blank and preparation method of microcrystal ceramic composite board
  • Microcrystal ceramic composite board as well as blank and preparation method of microcrystal ceramic composite board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] (1) According to the formula given in Table 1, the raw materials are batched into the ball mill by a forklift.

[0061] (2) According to the ratio of powder: water: grinding medium = 1:0.4:3, add water and grinding balls for grinding. When grinding, the slurry flow rate is 30m / s; 1.0%, stop ball milling when the slurry specific gravity is 1.72g / ml, discharge.

[0062] (3) The ground slurry is sieved through three times to ensure that unground raw materials and impurity iron are removed.

[0063] (4) Stir and mix the slurry after sieving, and then spray granulate. The powder obtained by spray granulation is stale for 24 hours, and the moisture content in the powder is detected to be 7.2%.

[0064] (5) Grading the granulated particles according to 0.5% for more than 20 mesh; 40% for 40 mesh; 58% for 80 mesh; dry.

[0065] (6) Spread frit on the surface of the dried green body, then fire at 1200-1250°C for 70 minutes, and polish to obtain a microcrystalline ceramic comp...

Embodiment 2

[0067] (1) According to the formula given in Table 1, the raw materials are batched into the ball mill by a forklift.

[0068] (2) According to the ratio of powder: water: grinding medium = 1:0.4:2, add water and grinding balls for grinding. When grinding, the slurry flow rate is 50m / s; 0.9%, stop ball milling when the slurry specific gravity is 1.74g / ml, discharge.

[0069] (3) The ground slurry is sieved through three times to ensure that unground raw materials and impurity iron are removed.

[0070] (4) Stir and mix the slurry evenly after sieving, and then spray granulate. The powder obtained by spray granulation is stale for 28 hours, and the moisture content in the powder is detected to be 6.8%.

[0071] (5) Grading the granulated particles according to 0.8% for more than 20 mesh; 45% for 40 mesh; 52% for 80 mesh; dry.

[0072] (6) Spread frit on the surface of the dried green body, then fire at 1100-1200°C for 120 minutes, and polish to obtain a microcrystalline cera...

Embodiment 3

[0074] (1) According to the formula given in Table 1, the raw materials are batched into the ball mill by a forklift.

[0075] (2) According to the ratio of powder: water: grinding medium = 1:0.6:3, add water and grinding balls for grinding. When grinding, the slurry flow rate is 70m / s; 1.1%, when the specific gravity of the slurry is 1.69g / ml, the ball milling is stopped and the material is discharged.

[0076] (3) The ground slurry is sieved through three times to ensure that unground raw materials and impurity iron are removed.

[0077] (4) Stir and mix the slurry evenly after sieving, and then spray granulate. The powder obtained by spray granulation is stale for 40 hours, and the moisture content in the powder is detected to be 7.4%.

[0078] (5) Grading the granulated particles according to 0.3% for more than 20 mesh; 45% for 40 mesh; 54% for 80 mesh; dry.

[0079] (6) Spread frit on the surface of the dried green body, then fire at 1050-1150°C for 180min, and polish ...

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Abstract

The invention discloses a microcrystal ceramic composite board blank, a microcrystal ceramic composite board sintered by use of the blank and a preparation method of the microcrystal ceramic composite board. The blank is prepared from the following components in percentage by weight: 8-15% of mixed mud, 10-20% of potassium sodium sand, 10-20% of moderate-temperature sand, 5-15% of high-temperature sand, 1-5% of talcum mud, 8-16% of field sand, 2-10% of mountain sand, 5-15% of potassium sand, 3-8% of sodium aluminum sand, 0.5-3% of diluent and 8-18% of washing mud. The formula of the blank is adjusted and the process is further improved so that the linear expansion coefficient of the sintered blank can be within the range of 5.5-8*10<-6> / DEG C, and the difference with the liner expansion coefficient of a microcrystal frit commonly used at present can be basically controlled within the range of 0.6-1.8*10<-6> / DEG C; and as a result, the problems of flatness defect and the like due to unmatched expansion / shrinkage coefficients of the blank layer and the microcrystal glass layer in the sintering process are solved, the superior product rate is increased and the cost is saved.

Description

technical field [0001] The invention relates to a microcrystalline ceramic composite plate blank, a microcrystalline ceramic composite plate and a preparation method thereof. Background technique [0002] Microcrystalline ceramic composite board is also called composite microcrystalline stone. Composite microcrystalline stone is a new type of composite plate that combines a layer of glass-ceramic on the surface of ceramic vitrified tiles. Because its surface is glass-ceramic layer, it is completely antifouling and easy to clean and maintain; in addition, it avoids the radioactive hazard of natural stone, and is a non-radioactive product, which is an ideal green building material for decoration. The color is natural, translucent, and never fades, and has the decorative effect of natural jade. It is the first choice for high-end wall and floor tiles. [0003] The early microcrystalline ceramic composite panels were usually manufactured by double firing, that is, the green bod...

Claims

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Application Information

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IPC IPC(8): C03C10/00
Inventor 范国昌陈勇徐正荣吴柏惠吴则昌范新晖
Owner FOSHAN SHI WAN YING BRAND CERAMICS CO LTD
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