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Single-layer glazed transmutation brick and preparation method thereof

A glazed surface and kiln transformation technology, which is applied to the field of single-layer glazed kiln transformation bricks and their preparation, can solve the problems of high firing temperature, high energy consumption, difficult cutting, etc., so as to improve the qualified rate of products and facilitate construction cutting and firing. The effect of process optimization

Active Publication Date: 2016-06-29
JIANGXI GANXIN CRAFT CERAMICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of kiln-changing glaze product with three or more layers not only has complicated glazing process, but also often produces color difference due to the different thickness of bottom glaze and top glaze, which affects the overall effect of large-area paving of architectural decoration.
[0004] The third is that the traditional kiln-changing glaze process is produced in an intermittent kiln after being fired at a high temperature of 1280 degrees for 10-12 hours and then cooled in sections. The firing temperature is high, the time is long, and the energy consumption is large.
[0005] Fourth, the ceramic products produced by the traditional kiln-changing glaze process are difficult to cut during construction due to their good magnetization and high hardness.

Method used

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  • Single-layer glazed transmutation brick and preparation method thereof
  • Single-layer glazed transmutation brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of body mud: 35% of pyrophyllite, 15% of wollastonite, 10% of limestone, 10% of Yujiang mud, 15% of Suzhou soil, 8% of magnesia mud and 7% of Ji'an white mud are weighed by weight percentage Put it back into the ball mill, and according to the above materials: ball: water ratio is 1:1.5:0.7 ball mill for 13 hours, the fineness is 250 mesh sieve and the remaining 0.6%;

[0030] (2) Preparation of glazed surface: 20% feldspar, 20% zinc oxide, 8% dolomite, 7% kaolin, 20% quartz, 23% frit and 2% manganese dioxide are weighed into high alumina by weight percentage Lining in the ball mill, and according to the ratio of composite materials: balls: water 1:1.6:0.5, add balls and water together for ball milling for 16 hours, the fineness of ball milling is controlled at 350 mesh, and the sieve allowance is 0.8%, and the balls are milled Put the glaze material into the glaze slurry tank, after stirring, sieving, and iron removal, the specific gravity of the glaze ...

Embodiment 2

[0035] (1) Preparation of body mud: 33% of pyrophyllite, 17% of wollastonite, 8% of limestone, 12% of Yujiang mud, 12% of Suzhou soil, 10% of magnesia mud, and 8% of Ji'an white mud are weighed by weight percentage Put it back into the ball mill, and according to the above materials: ball: water ratio is 1:1.5:0.7 ball mill for 12 hours, the fineness is 250 mesh sieve remaining 0.8%;

[0036] (2) Preparation of glazed surface: 19% feldspar, 21% zinc oxide, 7% dolomite, 7% kaolin, 19% quartz, 25% frit, 1% manganese dioxide, and 1% copper oxide by weight percentage Weigh it into the high-alumina lined ball mill, and according to the ratio of composite materials: balls: water 1:1.6:0.5, add balls and water together for ball milling for 17 hours, the fineness of ball milling is controlled at 350 mesh, and the sieve residue is 0.7% , put the ball-milled glaze material into the glaze slurry tank, after stirring, sieving, and iron removal, the specific gravity of the glaze slurry is ...

Embodiment 3

[0041] (1) Preparation of body mud: 37% of pyrophyllite, 13% of wollastonite, 12% of limestone, 8% of Yujiang mud, 17% of Suzhou soil, 6% of magnesia mud and 7% of Ji'an white mud are weighed by weight percentage Put it back into the ball mill, and according to the above materials: ball: water ratio is 1:1.5:0.7 ball mill for 15 hours, the fineness is 250 mesh sieve and the remaining 0.6%;

[0042] (2) Preparation of glaze surface: feldspar 21%, zinc oxide 19%, dolomite 8%, kaolin 8%, quartz 21%, frit 21%, cobalt oxide 1%, ferric oxide 1% by weight The percentage is weighed into the high-alumina lined ball mill, and according to the ratio of composite materials: balls: water 1:1.6:0.5, balls and water are added together for ball milling for 16 hours. %, put the ball-milled glaze material into the glaze slurry bucket, after stirring, sieving, and iron removal, the specific gravity of the glaze slurry is 1.63 kg / L;

[0043] (3) Green body molding and biscuit firing: put the gre...

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Abstract

The invention discloses a single-layer glazed transmutation brick and a preparation method thereof and relates to production of architectural ceramic glazed bricks. The method comprises the following steps: (1) preparation of green body slurry; (2) preparation of a glazing material; (3) forming and biscuit firing of a green body; (4) glazing of the green body; (5) firing of the transmutation brick. The glazed green body is fired in a kiln after drying and is subjected to a transmutation reaction through two times of temperature increasing and decreasing, and the single-layer glazed transmutation brick is obtained. The method has the advantages as follows: firstly, the problem about combination of the green body and glaze is solved, the product qualification rate is increased, and the method is suitable for large-scale production; secondly, a ground coat and cover glaze are combined into single glaze layer, a glazing process is simplified, color difference caused by different thickness of the ground coat and the cover glaze is avoided, and the brick can adapt to large-area paving for architectural decoration; thirdly, the firing temperature and firing time for the transmutation glaze are reduced, energy is saved, and consumption is reduced; fourthly, through optimization of a green body formula and a firing process, the brick is magnetized while is not hardened too much, and construction cutting is facilitated.

Description

technical field [0001] The invention relates to the production of architectural ceramic glazed bricks, in particular to a single-layer glazed kiln-varnished brick and a preparation method thereof. Background technique [0002] Architectural ceramic interior wall glazed tiles are composed of wax stone, wollastonite, quartz, clay, etc. After biscuit firing, a layer of bottom glaze and a layer of layer glaze are applied on the surface of the body, which is printed by screen or roller, or The digital inkjet printing pattern is then fired in a roller kiln at 1100-1120 degrees. The pattern of each brick is basically the same, lacking natural texture. The traditional kiln-changing glaze is formed by repeatedly applying glaze water on the biscuit for two or more times, and then cooling it in sections after being fired at 1280 degrees for 10-12 hours in an intermittent kiln. The firing temperature and atmosphere in the kiln vary, and the patterns are naturally generated and differe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/24C04B33/34C03C8/14
CPCC03C8/14C04B33/24C04B33/34C04B2235/3208C04B2235/3454C04B2235/3463
Inventor 徐明光曾小勇罗青彭平香周根生
Owner JIANGXI GANXIN CRAFT CERAMICS CO LTD
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