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Thermal-shock-resistant ceramic brick and preparation method thereof

A technology of thermal shock resistance and ceramic quality, applied in the field of architectural ceramics, can solve the problems of low thermal shock resistance, and achieve the effects of improving the sintering degree, solving the reduction of thermal shock resistance, and widening the firing range.

Active Publication Date: 2021-06-11
FOSHAN DONGPENG CERAMIC +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a thermal shock resistant ceramic brick to solve the problem of low thermal shock resistance of the existing brick body when fired in a wide-body kiln. In addition, the present invention also proposes a thermal shock resistant A method for preparing ceramic bricks, in order to prepare the above-mentioned thermal shock resistant ceramic bricks, so as to make the brick body adapt to the production of existing wide-body kilns

Method used

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  • Thermal-shock-resistant ceramic brick and preparation method thereof
  • Thermal-shock-resistant ceramic brick and preparation method thereof
  • Thermal-shock-resistant ceramic brick and preparation method thereof

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preparation example Construction

[0047] The present invention also provides a method for preparing thermal shock resistant ceramic bricks. The preparation method of thermal shock resistant ceramic bricks is applied to wide-body kilns for preparing the above-mentioned thermal shock resistant ceramic bricks. bricks, including the following steps:

[0048] Weigh the raw materials according to the ratio, and crush the raw materials so that the particle size of the raw materials is ≦0.5mm;

[0049] The crushed raw materials are ball milled to obtain powder slurry;

[0050] Drying the powder slurry to obtain powder;

[0051] Stale the powder for 48 hours;

[0052] Compressing the powder to obtain a green body and drying the green body;

[0053] Trim the green body, glaze the surface of the green body, and fire it in a wide-body kiln to obtain the thermal shock-resistant ceramic brick.

[0054] In the preparation method of the present invention, the raw materials are first weighed according to the above-mentione...

Embodiment 3

[0079] The components of Example 3 are the same as in Example 1, and the pressing pressure in the preparation step is 21000 MPa, and other steps are the same as in Example 1.

[0080] The thermal shock resistance ceramic bricks prepared in Example Group A and Example 3 above were tested for thermal shock resistance, and Table 3 was obtained.

[0081] The method of thermal shock resistance detection is as follows: raise the temperature of the thermal shock resistance instrument to 180°C±5, place the test sample of 300×600mm in the detection hanging cage of the thermal shock resistance instrument, and after heating for 30 minutes, the hanging cage will automatically put the glaze on Immerse the facing tiles in a water tank with a water temperature of 10-20°C. After soaking for 5 minutes, the hanging cage will automatically rise, and continue to heat at 180°C for 30 minutes; after repeating the above steps 3 times, take out the test sample from the thermal shock resistance instrum...

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Abstract

The invention discloses a thermal-shock-resistant ceramic brick and a preparation method thereof. The thermal-shock-resistant ceramic brick comprises, by weight, 15-17% of aluminum gangue, 4-6% of bluestone, 18-20% of clay, 4-6% of dolomite, 10-12% of fused quartz, 24-26% of sandstone and 17-19% of high-temperature sand. According to the thermal-shock-resistant ceramic brick, by reducing the use amount of quartz and bluestone and increasing the use amount of aluminum gangue, the content of silicon and calcium in the formula is reduced, the content of aluminum and magnesium in the formula is increased, the water absorption rate of a green body of the thermal-shock-resistant ceramic brick is reduced, and the sintering degree of the green body is increased; and the firing range of the thermal-shock-resistant ceramic brick is widened, so that the thermal-shock-resistant ceramic brick can keep a better firing effect in a wide-body kiln with larger section temperature difference. Crystal form conversion of the green body is reasonable in the firing process of the wide-body kiln with the large section temperature difference, so that the thermal shock resistance stability of the finished product is improved, and the problem that the thermal shock resistance of the brick finished product is reduced due to the large section temperature difference of the wide-body kiln is solved.

Description

technical field [0001] The invention relates to the field of architectural ceramics, in particular to a thermal shock-resistant ceramic brick and a preparation method thereof. Background technique [0002] Under the modern trend of pursuing high output, low energy consumption and low cost, large output wide-body kilns are gradually being widely used. However, the wide-body kiln itself also has disadvantages. The width of the wide-body kiln is larger than that of an ordinary kiln, and the thermal conductivity of the air is not good. Therefore, if the firing cycle of the brick body is too fast, the width of the wide-body kiln will The cross-section temperature difference in the direction is large, and it is difficult to accurately control the firing temperature and cooling temperature of the brick, which makes the crystal transformation of the green body unstable during the firing and cooling process, resulting in a decrease in the thermal shock resistance of the finished prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/18C04B35/622
CPCC04B35/18C04B35/62204C04B2235/321C04B2235/349C04B2235/6567C04B2235/9607
Inventor 高兴斌罗涛张欢乐殷少泽
Owner FOSHAN DONGPENG CERAMIC
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